EP1923653B1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- EP1923653B1 EP1923653B1 EP20060023588 EP06023588A EP1923653B1 EP 1923653 B1 EP1923653 B1 EP 1923653B1 EP 20060023588 EP20060023588 EP 20060023588 EP 06023588 A EP06023588 A EP 06023588A EP 1923653 B1 EP1923653 B1 EP 1923653B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- heat exchanger
- shell
- flat tubes
- 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
Links
- 238000005476 soldering Methods 0.000 claims description 11
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims description 5
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000000844 transformation Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0263—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry or cross-section of header box
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
- F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0082—Charged air coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/08—Reinforcing means for header boxes
Definitions
- the invention relates to a heat exchanger as a soldering or welded construction, which has narrow and broad sides having flat tubes and corrugated fins and collecting boxes, which are designed as two shell-like parts, wherein the two parts are assembled in a central longitudinal plane of the heat exchanger or in a plane parallel thereto.
- This heat exchanger is from the EP 864 839B1 and known from other publications.
- the known heat exchanger has no tube plates but expanded tube ends, which are joined together in a block. The end edge of each two-part header encloses the final flush block of pipe ends.
- the known heat exchanger has the advantage that a little less material, for example. Aluminum sheet, could be used because - as mentioned - tube plates are not present.
- the operating weight of the heat exchanger is thereby reduced only slightly, because the expansion of the pipe ends requires comparatively larger wall thicknesses of the flat tubes, whereby the mentioned savings are partially reversed.
- a not insignificant overhead is generated because of the implementation of the forming process at each pipe end.
- the object of the invention is to provide a heat exchanger, which allows the use of flat tubes with thinner wall thicknesses, or which can at least mitigate the above-mentioned disadvantages.
- the solution according to the invention results in the heat exchanger in that it is equipped with the features of claim 1. Because the two shell-like parts are provided with spaced-apart projections, which engage in the region of the narrow sides in the ends of the flat tubes, tubes with thinner wall thicknesses can be used because an expansion of the pipe ends does not have to be made. Furthermore, the advantage was achieved that the soldering critical joints are easily accessible, so they can be aftertreated if necessary. In a second soldering operation leaks can be eliminated.
- the heat exchanger according to the invention has a pronounced advantageous relationship between its entire cross-sectional area to the effective heat exchange surface. It can therefore be used well the available space. It is envisaged that the ends of the flat tubes stuck in openings of pipe holders, the flat tubes have a supernatant on both sides of the tube sheets. In contrast to the openings in known tube sheets, the flat tube ends in the openings of the tube holder are not enclosed around the entire circumference of the opening edge.
- the shell-like parts bear against the edges of the tube holder, wherein the projections engage in the region of the projections in the ends of the flat tubes, wherein they rest inside on the narrow sides of the flat tubes.
- the one shell-like part is formed identical to the other shell-like part, wherein the connection of the two parts is arranged approximately in the central longitudinal plane of the heat exchanger. That on one of the shell-like parts a neck or the like should be formed and in so far as no identity of the parts could be present, is not taken into account here.
- the one shell-like part is cup-shaped and the other shell-like part is approximately planar, wherein the connection of the two parts lies in a plane parallel to the central longitudinal plane.
- essentially flat parts are also shell-like parts.
- the central longitudinal plane or a plane parallel to it must not really be flat.
- the term merely indicates an orientation extending transversely through the broad sides of the flat tubes.
- the connection of the parts could, for example, be made along a corrugated configuration of the connecting edges of the parts It is envisaged that the shell - like parts have suitable means by which they are held together in a soldering or welding manner.
- the means may be formed as arranged on the edge of the parts tabs and notches or the like, which engage in the assembly of the parts together
- the means may in contrast be designed as formed on at least one of the parts, inwardly directed transformations, which are designed so that the parts can be connected, for example, put together in the sense of a prefixing together.
- the inwardly directed transformations are, according to a further optional feature, designed to have flow-directing properties that promote the even distribution of the medium onto the flat tubes. It is further provided that the assembled shell-like parts have openings towards the end faces of the heat exchanger, with side parts or caps being provided which close the openings.
- Fig. 1 shows a perspective view of a heat exchanger according to the invention.
- the Fig. 2 shows an enlarged section of the Fig. 1 ,
- the Fig. 3 shows this detail in an exploded view.
- the Fig. 4-7 show a modified embodiment in different views.
- the heat exchanger In the heat exchanger, which is shown in the figures, it should be a cooled by means of cooling air charge air cooler for automotive applications, without wanting to exclude other heat exchangers and their applications somehow. But, quite the contrary, other heat exchangers and their applications are expressly provided, however, have not been shown in the figures.
- the heat exchanger has at a collecting box 3 an inlet opening 36 for charge air to be cooled and at the other collecting box 3 an outlet opening 35 for cooled charge air.
- the cooling air flows in the sense of the block arrow through the not shown corrugated fins 2, which are arranged between the broad sides 12 of the flat tubes 1 .
- the assembly of the in the Fig. 1 shown heat exchanger can be made for example as follows.
- the flat tubes 1 are alternately assembled with the corrugated fins 2 into a stack.
- pipe holder 4 are attached to both ends of the flat tubes 1 .
- the tube holder 4 have openings 40 that extend into the edge 41 of the tube holder 4, whereby the tube holder 4 differ, inter alia, of the usual tube plates.
- the openings 40 may, if necessary and in a known manner, be provided with a collar-like passage pointing towards the corrugated fins 2 in order to improve the soldering with the flat tube ends.
- the flat tube ends do not have to protrude inwards to the collection box 3 out. (not clearly visible)
- the attachment of the tube holder 4 can be carried out so that the tube holder 4 are pushed transversely to their longitudinal direction towards the ends of the flat tubes. 1
- the flat tubes 1 have a dimensionally minor but functionally important supernatant 5 on the two longitudinal edges 41 of the tube holder 4.
- the collecting boxes 3 are added to the tube holders 4 at both opposite ends of the flat tubes 1 .
- the side parts 70 provided in this embodiment are attached, as can be seen from the figures.
- the collecting boxes 3 consist of two shell-like parts 31 and 32, wherein the one shell-like part 31 has a clear "open" shell shape and the other shell-like part 32 is formed quite flat. It could also be completely flat. Since in the embodiments shown, as mentioned, side parts 70 are provided, remain after joining the two shell-like parts 31, 32, two end-side openings 33 which are closed by means of caps 71, which are part of the side parts 70 . It could also be provided individual caps, and the side parts can also be omitted. (not shown) The side members 70 have an expansion slot 72 that permits operational expansions and contractions caused by thermal cycling. In the embodiments shown in the Fig.
- the parts 31 and 32 are provisionally connected around their perimeter to be joined by means of tabs 61 and notches 62 constituting the means 6 for connection mentioned above.
- the two shell-like parts 31, 32 are equipped with projections 30 arranged at intervals, which engage in the ends of the flat tubes 1 in the region of the narrow sides 11 .
- the distances of the projections 30 correspond exactly to the distances of the flat tubes 1, so that the collecting boxes 3 are pushed in the longitudinal direction of the flat tubes 1 on the ends thereof can, with each projection 30 engages a flat tube end, precisely in the respective above-mentioned projection 5.
- Fig. 2 was drawn in the area of four projections 30 and flat tubes 1 a section, which is why the seated in the flat tube ends projections 30 can be seen.
- the particular Fig. 3 can recognize, they have formed the projections 30 with a corresponding slightly conical shape, so that the same hand on the one hand easier to slide into the flat tube ends and on the other hand but there tight fit, so that good soldering results can be achieved.
- the inventor has even made the edges of the projections 30 quite sharp-edged, because it was found that existing length tolerances of the flat tubes 1 can compensate well by the sharp edges of the projections 30 cut into the tube wall of the slightly longer flat tubes 1 , resulting in the mentioned compensation of the tolerances leads.
- the projections 30 keep the tube walls under tension, whereby the so-called “collapse" of the flat tubes 1 during the soldering process is prevented. The "collapse" can lead to faulty solder joints.
- the heat exchanger is equipped with a holding device 80 , which can be attached, for example, to hooks 81 or the like, which are in the case shown on the part 32 .
- the holding device 80 may also be made of plastic.
- inwardly directed deformations 65 were formed, on the one hand known to improve the stability, which is why the parts 31, 32 can be formed quite thin-walled. On the other hand, it is intended to influence the flow distribution by means of these inward "bumps". As is known, the middle tubes of a heat exchanger often flow through better than those that lie on the edge. As a result, on the one hand causes an undesirable temperature gradient and on the other hand often not achieved the maximum possible cooling performance. These disadvantages should be met by a targeted geometry of the transformations 65 .
- the deformations 65 may, as shown, be located on both parts 31, 32 or only on one of the parts.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Die Erfindung betrifft einen Wärmeübertrager als Löt - oder Schweißkonstruktion, der Schmal - und Breitseiten aufweisende Flachrohre und Wellrippen sowie Sammelkästen besitzt, die als zwei schalenartige Teile ausgeführt sind, wobei die beiden Teile in einer Mittellängsebene des Wärmeübertragers oder in einer dazu parallelen Ebene zusammengesetzt sind.The invention relates to a heat exchanger as a soldering or welded construction, which has narrow and broad sides having flat tubes and corrugated fins and collecting boxes, which are designed as two shell-like parts, wherein the two parts are assembled in a central longitudinal plane of the heat exchanger or in a plane parallel thereto.
Dieser Wärmeübertrager ist aus dem
Der bekannte Wärmeübertrager besitzt keine Rohrböden sondern aufgeweitete Rohrenden, die blockartig aneinander gefügt sind. Der Abschlussrand jedes zweiteiligen Sammelkastens umgreift bündig abschließend den Block aus Rohrenden. Der bekannte Wärmeübertrager besitzt den Vorteil, dass etwas weniger Werkstoff, bspw. Aluminiumblech, eingesetzt werden könnte, da - wie erwähnt - Rohrböden nicht vorhanden sind. Das Einsatzgewicht des Wärmeübertragers wird dadurch jedoch nur unwesentlich reduziert, weil das Aufweiten der Rohrenden vergleichsweise größere Wanddicken der Flachrohre erfordert, wodurch die erwähnten Einsparungen zum Teil wieder rückgängig gemacht werden. Ferner wird wegen der Durchführung des Umformvorganges an jedem einzelnen Rohrende ein nicht unwesentlicher Mehraufwand erzeugt. Es kann auch angenommen werden, dass die bekannte Konstruktion löttechnische Probleme bereitet, die sich in zu hohen Ausschuss - oder Nacharbeitsraten auswirken, wenn nicht ganz besonders sorgfältige Vorbehandlungen für den Lötprozess durchgeführt werden. Ferner könnte es wünschenswert sein, die gleichmäßige Verteilung des in dem Sammelkasten strömenden Mediums auf die einzelnen Flachrohre zu verbessern.This heat exchanger is from the
The known heat exchanger has no tube plates but expanded tube ends, which are joined together in a block. The end edge of each two-part header encloses the final flush block of pipe ends. The known heat exchanger has the advantage that a little less material, for example. Aluminum sheet, could be used because - as mentioned - tube plates are not present. However, the operating weight of the heat exchanger is thereby reduced only slightly, because the expansion of the pipe ends requires comparatively larger wall thicknesses of the flat tubes, whereby the mentioned savings are partially reversed. Furthermore, a not insignificant overhead is generated because of the implementation of the forming process at each pipe end. It may also be believed that the prior art design poses soldering problems that result in excessive rejects or rework rates unless very careful pre-treatments are performed for the soldering process. Furthermore, it may be desirable to improve the uniform distribution of the medium flowing in the collecting box to the individual flat tubes.
Die Aufgabe der Erfindung besteht in der Bereitstellung eines Wärmeübertragers, der den Einsatz von Flachrohren mit dünneren Wanddicken gestattet, bzw. der die oben erwähnten Nachteile zumindest abschwächen kann.
Die erfindungsgemäße Lösung ergibt sich bei dem Wärmeübertrager dadurch, dass er mit den Merkmalen des Anspruchs 1 ausgestattet wird.
Weil die zwei schalenartigen Teile mit in Abständen angeordneten Vorsprüngen ausgestattet sind, die im Bereich der Schmalseiten in die Enden der Flachrohre eingreifen, können Rohre mit dünneren Wanddicken eingesetzt werden, da eine Aufweitung der Rohrenden nicht vorgenommen werden muss. Ferner wurde der Vorteil erzielt, dass die löttechnisch kritischen Verbindungsstellen gut zugänglich sind, weshalb sie im Bedarfsfall nachbehandelt werden können. In einer zweiten Lötoperation können Leckagen beseitigt werden. Es wurde allerdings in zahlreichen Versuchen auch festgestellt, dass die Lötergebnisse vergleichsweise hervorragend sind, sodass der Umfang für Nachbehandlungen sehr gering ausfällt. In funktioneller Hinsicht weist der erfindungsgemäße Wärmeübertrager ein ausgesprochen vorteilhaftes Verhältnis zwischen seiner gesamten Querschnittsfläche zur effektiven Wärmetauschfläche auf. Es kann deshalb der zur Verfügung stehende Bauraum gut ausgenutzt werden.
Es ist vorgesehen, dass die Enden der Flachrohre in Öffnungen von Rohrhaltern stecken, wobei die Flachrohre beidseitig der Rohrböden einen Überstand aufweisen. Im Unterschied zu den Öffnungen in bekannten Rohrböden, werden die Flachrohrenden in den Öffnungen der Rohrhalter nicht um den gesamten Umfang vom Öffnungsrand eingefasst.The object of the invention is to provide a heat exchanger, which allows the use of flat tubes with thinner wall thicknesses, or which can at least mitigate the above-mentioned disadvantages.
The solution according to the invention results in the heat exchanger in that it is equipped with the features of
Because the two shell-like parts are provided with spaced-apart projections, which engage in the region of the narrow sides in the ends of the flat tubes, tubes with thinner wall thicknesses can be used because an expansion of the pipe ends does not have to be made. Furthermore, the advantage was achieved that the soldering critical joints are easily accessible, so they can be aftertreated if necessary. In a second soldering operation leaks can be eliminated. However, it was also found in numerous experiments that the soldering results are comparatively excellent, so that the scope for post-treatment is very low. Functionally, the heat exchanger according to the invention has a pronounced advantageous relationship between its entire cross-sectional area to the effective heat exchange surface. It can therefore be used well the available space.
It is envisaged that the ends of the flat tubes stuck in openings of pipe holders, the flat tubes have a supernatant on both sides of the tube sheets. In contrast to the openings in known tube sheets, the flat tube ends in the openings of the tube holder are not enclosed around the entire circumference of the opening edge.
Dabei ist es besonders von Vorteil, dass die schalenartigen Teile an den Rändern des Rohrhalters anliegen, wobei die Vorsprünge im Bereich der Überstände in die Enden der Flachrohre eingreifen, wobei sie innen in den Schmalseiten der Flachrohre anliegen.
Es ist möglich, dass das eine schalenartige Teil identisch mit dem anderen schalenartigen Teil ausgebildet wird, wobei die Verbindung der zwei Teile etwa in der Mittellängsebene des Wärmeübertragers angeordnet ist. Dass an einem der schalenartigen Teile ein Stutzen oder dergleichen ausgebildet sein sollte und insofern keine Identität der Teile vorliegen könnte, bleibt hier unberücksichtigt.
Gegenwärtig wird jedoch bevorzugt vorgesehen, dass das eine schalenartige Teil schalenartig ausgebildet ist und das andere schalenartige Teil etwa eben ausgebildet ist, wobei die Verbindung der zwei Teile in einer zur Mittellängsebene parallelen Ebene liegt. Im Sinne des vorliegenden Vorschlags sind also im Wesentlichen ebene Teile auch schalenartige Teile. Im Sinne des Vorschlags muss die Mittellängsebene oder eine dazu parallele Ebene nicht wirklich eben sein. Der Begriff zeigt lediglich eine quer durch die Breitseiten der Flachrohre sich erstreckende Orientierung an. Die Verbindung der Teile könnte zum Beispiel entlang einer gewellten Ausbildung der Verbindungsränder der Teile vorgenommen werden
Es ist vorgesehen, dass die schalenartigen Teile geeignete Mittel aufweisen, mit denen sie löt - oder schweißgerecht zusammengehalten werden.
Die Mittel können als am Rand der Teile angeordnete Laschen und Kerben oder dergleichen ausgebildet sind, die beim Zusammenfügen der Teile ineinander greifen
Die Mittel können demgegenüber als an wenigstens einem der Teile ausgebildete, nach innen gerichtete Umformungen gestaltet sein, die so ausgeführt sind, dass sich die Teile verbinden lassen, beispielsweise im Sinne eine Vorfixierung zusammen stecken lassen.
Die nach innen gerichteten Umformungen sind gemäß einem weiteren fakultativen Merkmal so ausgebildet, dass sie strömungslenkende Eigenschaften besitzen, die die gleichmäßige Verteilung des Mediums auf die Flachrohre befördern.
Weiter ist vorgesehen, dass die zusammengefügten schalenartigen Teile zu den Stirnseiten des Wärmeübertragers hin Öffnungen aufweisen, wobei Seitenteile oder Kappen vorhanden sind, die die Öffnungen verschließen. Als Alternative zu dieser Ausbildung kann vorgesehen werden, dass wenigstens eines der schalenartigen Teile so verformt ist, dass im zusammengefügten Zustand der Teile keine Öffnungen vorhanden sind. Damit entfällt die Notwendigkeit des Vorsehens von Seitenteilen bzw. von Verschlüssen.
Weitere Merkmale gehen aus den beigefügten Patentansprüchen hervor.
Die Erfindung wird im Anschluss in einigen bevorzugten Ausführungsbeispielen beschrieben, wozu auf die beiliegenden Zeichnungen Bezug genommen wird. Die Beschreibung kann weitere Merkmale und Vorteile enthalten, die bisher noch nicht erwähnt wurden.
Die
Die
Die
Die
It is possible that the one shell-like part is formed identical to the other shell-like part, wherein the connection of the two parts is arranged approximately in the central longitudinal plane of the heat exchanger. That on one of the shell-like parts a neck or the like should be formed and in so far as no identity of the parts could be present, is not taken into account here.
At present, however, it is preferably provided that the one shell-like part is cup-shaped and the other shell-like part is approximately planar, wherein the connection of the two parts lies in a plane parallel to the central longitudinal plane. For the purposes of the present proposal, essentially flat parts are also shell-like parts. For the purposes of the proposal, the central longitudinal plane or a plane parallel to it must not really be flat. The term merely indicates an orientation extending transversely through the broad sides of the flat tubes. The connection of the parts could, for example, be made along a corrugated configuration of the connecting edges of the parts
It is envisaged that the shell - like parts have suitable means by which they are held together in a soldering or welding manner.
The means may be formed as arranged on the edge of the parts tabs and notches or the like, which engage in the assembly of the parts together
The means may in contrast be designed as formed on at least one of the parts, inwardly directed transformations, which are designed so that the parts can be connected, for example, put together in the sense of a prefixing together.
The inwardly directed transformations are, according to a further optional feature, designed to have flow-directing properties that promote the even distribution of the medium onto the flat tubes.
It is further provided that the assembled shell-like parts have openings towards the end faces of the heat exchanger, with side parts or caps being provided which close the openings. As an alternative to this embodiment it can be provided that at least one of the shell-like parts is deformed so that in the assembled state of the parts no openings are present. This eliminates the need for the provision of side panels or closures.
Further features will become apparent from the appended claims.
The invention will hereinafter be described in some preferred embodiments, reference being made to the accompanying drawings. The description may include other features and advantages not heretofore mentioned.
The
The
The
The
Bei dem Wärmeübertrager, der in den Figuren dargestellt ist, soll es sich um einen mittels Kühlluft gekühlten Ladeluftkühler für Kraftfahrzeuganwendungen handeln, ohne damit andere Wärmeübertrager und deren Anwendungen irgendwie ausschließen zu wollen. Sondern, ganz im Gegenteil, sind andere Wärmeübertrager und deren Anwendungen ausdrücklich vorgesehen jedoch in den Figuren nicht gezeigt worden.
Wie dem Fachmann bestens geläufig ist, besitzt der Wärmeübertrager an einem Sammelkasten 3 eine Eintrittsöffnung 36 für zu kühlende Ladeluft und am anderen Sammelkasten 3 eine Austrittsöffnung 35 für gekühlte Ladeluft. Die Kühlluft strömt im Sinne des Blockpfeiles durch die nicht eingezeichneten Wellrippen 2, die zwischen den Breitseiten 12 der Flachrohre 1 angeordnet sind. Im Übrigen ist die Art der Durchströmung des Wärmeübertragers im Zusammenhang mit dem vorliegenden Vorschlag nicht von Interesse, sondern sie dient nur der Erklärung der Darstellung in der
Die Sammelkästen 3 bestehen aus zwei schalenartigen Teilen 31 und 32, wobei das eine schalenartige Teil 31 eine deutliche "offene" Schalenform aufweist und das andere schalenartige Teil 32 ziemlich flach ausgebildet ist. Es könnte auch völlig eben sein. Da in den gezeigten Ausführungsbeispielen, wie erwähnt, Seitenteile 70 vorgesehen sind, verbleiben nach dem Zusammenfügen der beiden schalenartigen Teile 31, 32 zwei stirnseitige Öffnungen 33, die mittels Kappen 71, die Teil der Seitenteile 70 sind, verschlossen werden. Es könnten auch einzelne Verschlusskappen vorgesehen werden, und die Seitenteile können auch entfallen. (nicht gezeigt) Die Seitenteile 70 besitzen einen Dehnungsschlitz 72, der betriebsmäßige durch Temperaturwechsel verursachte Expansionen und Kontraktionen gestattet. In den Ausführungsbeispielen, die in den
As is well known to those skilled in the art, the heat exchanger has at a
The
Im Übrigen möchte die Anmelderin auf die gegenwärtig noch nicht veröffentlichte internationale Patentanmeldung
In den beiden schalenartigen Teilen 31, 32 wurden nach innen gerichtete Umformungen 65 ausgebildet, die einerseits bekanntermaßen die Stabilität verbessern, weshalb auch die Teile 31, 32 recht dünnwandig ausgebildet werden können. Andererseits ist beabsichtigt, mittels dieser nach innen gerichteten "Beulen" Einfluss auf die Strömungsverteilung zu nehmen. Bekanntlich werden die mittleren Rohre eines Wärmetauschers oftmals besser durchströmt als diejenigen, die am Rand liegen. Dadurch wird einerseits ein unerwünschtes Temperaturgefälle hervorgerufen und andererseits oft auch nicht die maximal mögliche Kühlleistung erzielt. Diesen Nachteilen soll durch eine gezielte Geometrie der Umformungen 65 begegnet werden. Die Umformungen 65 können sich, wie gezeigt, an beiden Teilen 31, 32 oder auch nur an einem der Teile befinden.
Die
The
Claims (11)
- Heat exchanger as a soldered or welded structure, which comprises flat tubes (1) having narrow sides (11) and broad sides (12), and corrugated fins (2) as well as collecting boxes (3) which are embodied as two shell-like parts (31, 32), wherein the two parts (31, 32) are joined together in a central longitudinal plane of the heat exchanger or in a plane which is parallel thereto, characterized in that the two shell-like parts (31, 32) are equipped with projections (30) which are arranged at intervals and engage in the ends of the flat tubes (1) in the region of the narrow sides.
- Heat exchanger according to Claim 1, characterized in that the ends of the flat tubes (1) plug into openings (40) in tube holders (4), wherein the flat tubes (1) have a protruding portion (5) on each side of the tube holders (4).
- Heat exchanger according to Claims 1 and 2, characterized in that the shell-like parts (31, 32) bear against the edges (41) of the tube holder (4), wherein the projections (30) engage in the ends of the flat tubes (1) in the region of the protruding portions (5), wherein they bear on the inside in the narrow sides (11) of the flat tubes (1).
- Heat exchanger according to one of the preceding claims, characterized in that the one shell-like part (31) is embodied so as to be approximately identical to the other shell-like part (32), wherein the connection between the two parts (31, 32) is made approximately in the central longitudinal plane of the heat exchanger.
- Heat exchanger according to one of Claims 1-3, characterized in that the one shell-like part (31) is embodied in a shell-like fashion and the other shell-like part (32) is embodied in an approximately planar fashion, wherein the connection between the two parts (31, 32) is made in a plane which is parallel to the central longitudinal plane.
- Heat exchanger according to one of the preceding claims, characterized in that the shell-like parts (31, 32) have means (6) with which they are held together in a way which is suitable for soldering or welding.
- Heat exchanger according to Claim 6, characterized in that the means (6) are embodied as tabs (61) and notches (62) which are arranged at the edge of the parts (31, 32).
- Heat exchanger according to Claim 6, characterized in that the means (6) are configured as shaped portions (65) which are formed on at least one of the parts (31, 32), are directed inwards and are formed in such a way that the parts (31, 32) can be connected.
- Heat exchanger according to Claims 1 and 8, characterized in that the shaped portions (65) which are directed inward are formed in such a way that they have flow directing properties which promote the uniform distribution of the medium among the flat tubes (1).
- Heat exchanger according to one of the preceding claims, characterized in that the shell-like parts (31, 32) which have been joined together have openings (33) toward the end sides of the heat exchanger, wherein side parts (70) which close off the openings (33) are present.
- Heat exchanger according to one of Claims 1-9, characterized in that at least one of the shell-like parts (31, 32) is shaped in such a way that in the state in which the parts (31, 32) are joined together no end side openings (33) are present.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060023588 EP1923653B1 (en) | 2006-11-14 | 2006-11-14 | Heat exchanger |
DE200650006082 DE502006006082D1 (en) | 2006-11-14 | 2006-11-14 | Heat exchanger |
US12/307,810 US20100032149A1 (en) | 2006-07-08 | 2007-07-06 | Heat exchanger and method of manufacturing the same |
PCT/US2007/072968 WO2008008710A1 (en) | 2006-07-08 | 2007-07-06 | Heat exchanger and method of manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060023588 EP1923653B1 (en) | 2006-11-14 | 2006-11-14 | Heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1923653A1 EP1923653A1 (en) | 2008-05-21 |
EP1923653B1 true EP1923653B1 (en) | 2010-02-03 |
Family
ID=37913133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060023588 Not-in-force EP1923653B1 (en) | 2006-07-08 | 2006-11-14 | Heat exchanger |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1923653B1 (en) |
DE (1) | DE502006006082D1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8844504B2 (en) | 2010-03-18 | 2014-09-30 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
US9309839B2 (en) | 2010-03-18 | 2016-04-12 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112577334A (en) * | 2019-09-27 | 2021-03-30 | 浙江盾安热工科技有限公司 | Heat exchanger |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3920069A (en) * | 1974-03-28 | 1975-11-18 | Modine Mfg Co | Heat exchanger |
EP0864839B1 (en) * | 1997-03-11 | 2002-02-06 | Behr GmbH & Co. | Heat exchanger, more particularly supercharge air cooler, for automotive vehicle |
DE19819247A1 (en) * | 1998-04-29 | 1999-11-11 | Valeo Klimatech Gmbh & Co Kg | Vehicle heat exchanger and especially water/air heat exchanger or evaporator |
US6530424B2 (en) * | 1999-06-02 | 2003-03-11 | Long Manufacturing Ltd. | Clip on manifold heat exchanger |
DE10347180A1 (en) * | 2003-10-10 | 2005-05-12 | Modine Mfg Co | Heat exchangers, in particular for motor vehicles |
DE10354382A1 (en) * | 2003-11-20 | 2005-06-16 | Behr Gmbh & Co. Kg | Heat exchangers, in particular intercoolers for motor vehicles |
-
2006
- 2006-11-14 EP EP20060023588 patent/EP1923653B1/en not_active Not-in-force
- 2006-11-14 DE DE200650006082 patent/DE502006006082D1/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8844504B2 (en) | 2010-03-18 | 2014-09-30 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
US9309839B2 (en) | 2010-03-18 | 2016-04-12 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
DE502006006082D1 (en) | 2010-03-25 |
EP1923653A1 (en) | 2008-05-21 |
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