EP3199899A1 - Heat exchanger plate - Google Patents
Heat exchanger plate Download PDFInfo
- Publication number
- EP3199899A1 EP3199899A1 EP17152425.9A EP17152425A EP3199899A1 EP 3199899 A1 EP3199899 A1 EP 3199899A1 EP 17152425 A EP17152425 A EP 17152425A EP 3199899 A1 EP3199899 A1 EP 3199899A1
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- EP
- European Patent Office
- Prior art keywords
- plate
- heat exchanger
- channel
- cover plate
- paper
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- 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
- F28D1/03—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 plate-like or laminated conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- 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
- F28D1/03—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 plate-like or laminated conduits
- F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
- F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
Definitions
- the present invention relates to a heat exchanger plate for a heat exchanger according to the preamble of claim 1.
- the invention also relates to a heat exchanger with at least one such heat exchanger plate and a method for producing such a heat exchanger plate.
- a plate heat exchanger with cover layers which are arranged at a distance from each other and limit flow channels for a plate heat exchanger flowing through the heat transfer medium.
- Between the cover layers is provided a three-dimensional, in the direction of the length and width of the plate heat exchanger extended and in height the distance between the cover layers creating planar structure which is connected to the cover layers and their folds together with the cover layers form the flow channels.
- the planar structure has a double, both in a first direction in the width direction of the plate heat exchanger and in a second direction in the direction of the length of the plate heat exchanger zig-zag pattern. As a result, an improved heat transfer should be achieved.
- the present invention therefore deals with the problem of providing for a heat exchanger plate of the generic type an improved or at least one alternative embodiment, which is in particular less expensive and easier to manufacture.
- the present invention is based on the general idea, a heat exchanger plate for a heat exchanger, for example.
- a heat exchanger plate for a heat exchanger for example.
- a battery cooler both cheaper and easier to produce by at least one channel plate of the heat exchanger plate, which is tightly connected to a cover plate and thus limits an internal channel structure, formed of paper and connected to the cover plate, in particular glued, is.
- a welding can be done.
- By training from paper for example. From so-called hard paper or technical paper, it is not only possible to allow a weight reduction of the heat exchanger plate according to the invention, but also a bonding of the same with the cover plate, in which case an adhesive used for this purpose different thermal expansions the cover plate and the channel plate, if they are made of different materials, can accommodate.
- paper fibers embedded in a matrix can be understood.
- the matrix may include epoxy resin or phenolic resin.
- thermoplastic adhesive system based on film is used, which allows a lamination of at least the channel plate and / or the cover plate as well as an assembly of the two plate members under pressure after assembly.
- the adhesive does not only guarantee that Compensation of the thermal expansion occurring during operation of the heat exchanger plate according to the invention, but also also the tightness.
- At least the channel plate is formed of technical paper with a density of about 1.35-1.90 g per cubic centimeter.
- Technical paper can be specified according to the application. Analogous to the fiber content in plastics.
- the cover plate made of paper, plastic or metal, in particular aluminum, is formed.
- the cover plate made of paper, plastic or metal, in particular aluminum.
- the cover plate is formed as previously made of aluminum, a significant weight saving is possible with the heat exchanger plate according to the invention, since the channel plate is always formed from paper.
- the binding matrix consists of a thermoplastic plastic, such as polypropylene, polyethylene, polyamide, acrylonitrile-butadiene-styrene, polyethylene terephthalate, polyetheretherketone or the like.
- a thermoplastic plastic such as polypropylene, polyethylene, polyamide, acrylonitrile-butadiene-styrene, polyethylene terephthalate, polyetheretherketone or the like.
- the channel plate has an integrally formed inlet connection and / or an integrally formed outlet connection.
- inlet or outlet can be with appropriate forming tools comparatively easy in the formed of paper channel plate with molding, of course, further structural features, such as. Couplings, can be molded with.
- the channel structure formed in the channel plate has an inflow region, a channel region, a deflection region and a return flow region.
- a wide variety of flow regions of the channel structure can thus be manufactured comparatively easily.
- the cover plate is formed as a flat plate or likewise has corresponding structures, in which case the inner channel structure formed by the cover plate and the channel plate are formed by channel geometries in the cover plate and channel geometries in the channel plate.
- a turbulence insert in particular a turbulence insert made of metal, is arranged between the channel plate and the cover plate, which is connected, in particular glued or welded, to the channel plate and / or the cover plate.
- the channel plate may be formed like a trough, so that the turbulence insert is inserted into the channel plate and adhesively bonded or welded thereto.
- the turbulence insert serves to generate turbulence and an improved heat transfer.
- such a turbulence insert of the structural strength in particular if it is additionally connected to the cover plate, for example glued or welded, is used, whereby the heat exchanger plate according to the invention can withstand higher internal pressures as well as generally higher forces.
- an electrical contact in particular a circuit or a ground, printed on the heat exchanger plate, that is, in particular applied by means of laminating or by screen printing process.
- the present invention is further based on the general idea of specifying a method for producing such a heat transfer plate, in which first the channel plate is formed from paper and then an adhesive, in particular by screen printing, is applied to this and / or to the cover plate.
- the cover plate itself can be made of metal, ceramic or paper. Subsequently, the channel plate is clamped against the cover plate and placed in an oven in which the heat exchanger plate is heated at a temperature between 80 ° C and 300 ° C for a maximum of ten minutes, thereby activating and curing the adhesive.
- the heat transfer plate according to the invention can be produced significantly less expensively.
- both the primary and the secondary production costs can be significantly reduced with the heat exchanger plate according to the invention or the method according to the invention. This is done by the choice of material, since in the channel plate according to the invention the material paper replaced the previous material metal. The cost of such a paper channel part, as well as the raw material costs are significantly lower than those of metals and plastics. In addition, due to the lower density of the paper, a much lighter heat exchanger plate can be produced.
- the oven temperatures and thus the operating and acquisition costs are significantly lower than with a comparable soldering oven.
- the furnace throughput times are significantly lower in a few minutes compared to a soldering process, whereby the manufacturing costs can be reduced.
- the manufacturing method according to the invention it is thus possible, as is generally known in the case of gluing, to connect a very wide variety of materials with very different coefficients of thermal expansion and different corrosion potentials, while at the same time minimizing the use of adhesive.
- the adhesive for example as an adhesive film
- such an adhesive film greatly simplifies the processing of the adhesive, since no separate machines such as pumps, nozzles, valves, or the like are required, nor does a special process knowhow.
- the laminated adhesive usually takes less than ten minutes to cure and also allows a high degree of automation. In particular, no caterpillar application with subsequent curing time is required with such laminated adhesive films.
- the adhesives used also show excellent media resistance, which is almost comparable to that of solder.
- at least the channel plate 3 is made of paper, for example of hard paper or of technical paper with a density of about 1.35 g / cm 3 . Due to the inventive design of at least the channel plate 3 made of paper, the heat exchanger plate 1 according to the invention compared to hitherto completely metallic heat exchanger plates can be made much easier, significantly resource-saving and also significantly cheaper.
- the cover plate 4 can likewise be made of paper, but also of plastic, of metal, for example of aluminum, or of ceramic or a ceramic composite material.
- channel structure 5 may comprise an inflow region 9, a deflection region 10, a channel region 11 and a return flow region 12. It can according to the Fig. 2 the inlet connection 7 and 8 may also be arranged vice versa, whereby, for example, the inflow region 9 and the return flow region 12 would be interchanged.
- a turbulence insert 13 can be arranged between the channel plate 3 and the cover plate 4, which, for example, is made of metal and glued or welded to the channel plate 3. Additionally or alternatively, the turbulence insert 13, which leads to the generation of flow turbulences and thus to an increased heat transfer, also connected to the cover plate 4, in particular glued or welded, be.
- an electrical contact 14 which according to the Fig. 2 glued to the cover plate 4 is printed or printed on this, in a similar manner and manner such electrical contact 14 can of course also be printed on the channel plate 3 (see. Fig. 1 ).
- Such an electrical contact 14 may include, for example, a circuit or only a ground of the heat exchanger plate 1.
- the inventive heat exchanger plate 1 is produced by first at least the channel plate 3 formed from paper and then connected to the cover plate 4, which may also be made of paper, but also of metal or plastic or ceramic, connected, in particular glued or welded, is.
- an adhesive 6, in particular in the manner of an adhesive film, or by means of screen printing is usually applied to the cover plate 4.
- the channel plate 3 is braced against the cover plate 4 and placed in an oven in which the heat exchanger plate 1 is heated at a temperature T between 80 ° C and 300 ° C for a maximum of ten minutes and thereby the adhesive 6 is activated and cured.
- the turbulence insert 13 can still be introduced.
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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
Die Erfindung betrifft eine Wärmeübertragerplatte (1) für einen Wärmeübertrager (2), insbesondere einen Batteriekühler, mit einer umgeformten Kanalplatte (3) und einer damit dicht verbundenen Deckplatte (4), die zusammen eine innenliegende Kanalstruktur (5) begrenzen. Erfindungswesentlich ist dabei, dass zumindest die Kanalplatte (3) aus Papier ausgebildet und mit der Deckplatte (4) verbunden, insbesondere verklebt oder verschweißt, ist. Hierdurch lässt sich eine kostengünstige und leichte Wärmeübertragerplatte (1) herstellen.The invention relates to a heat exchanger plate (1) for a heat exchanger (2), in particular a battery cooler, with a deformed channel plate (3) and a cover plate (4) tightly connected thereto, which together define an internal channel structure (5). Essential to the invention is that at least the channel plate (3) formed of paper and connected to the cover plate (4), in particular glued or welded, is. This makes it possible to produce a cost-effective and lightweight heat transfer plate (1).
Description
Die vorliegende Erfindung betrifft eine Wärmeübertragerplatte für einen Wärmeübertrager gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung betrifft außerdem einen Wärmeübertrager mit zumindest einer solchen Wärmeübertragerplatte sowie ein Verfahren zur Herstellung einer solchen Wärmeübertragerplatte.The present invention relates to a heat exchanger plate for a heat exchanger according to the preamble of
Aus der
Aus der
Durch steigenden Kostendruck und eine zunehmende Forderung nach einer Gewichtsreduzierung in Kraftfahrzeugen, werden zunehmend Alternativen im Kühlerbau gesucht. Konventionell gefertigte Kühler bzw. generell Wärmeübertrager werden dabei zumeist gelötet, wobei derartige Lötprozesse jedoch vergleichsweise aufwändig, zeitintensiv und damit teuer sind. Bei derzeitigen gelöteten Wärmeübertragern werden einzelne Wärmeübertragerplatten hinsichtlich der zu erfolgenden Lötung bedarfsgerecht konstruiert, was nicht nur eine entsprechende Stegauslegung umfasst, sondern auch den richtigen Auftrag einer Menge an Lot. Aus diesem Grund werden hierfür üblicherweise Iotplattierte Bleche eingesetzt, die jedoch im Vergleich zu herkömmlichen, unplattierten und gewalzten Blechen vergleichsweise teuer sind. Darüber hinaus werden für den Lötvorgang zudem entfettete Teile benötigt, was ebenfalls einen vergleichsweise aufwändigen Entfettungsprozess erfordert.Due to increasing cost pressure and an increasing demand for a weight reduction in motor vehicles, alternatives are increasingly being sought in cooler construction. Conventionally manufactured radiators or generally heat exchangers are usually soldered, but such soldering processes are comparatively complicated, time-consuming and therefore expensive. In current brazed heat exchangers, individual heat exchanger plates are constructed as needed in terms of soldering to be performed, which includes not only a corresponding fin design, but also the proper application of a lot of solder. For this reason, usually Iotplattierte sheets are used for this, but compared to conventional, unplated and rolled sheets are relatively expensive. In addition, for the soldering process also degreased parts are needed, which also requires a relatively complex degreasing process.
Bislang angestrebte Alternativen, zumindest Teile derartiger Wärmeübertrager aus Kunststoff auszubilden, scheiterten üblicherweise daran, dass Kunststoffkomponenten keine hinreichende Festigkeit in Bezug auf eine erforderliche Materialdicke besitzen, die notwendig ist, um eine geforderte Dichtigkeit, Wärmeleitfähigkeit, Festigkeit und Permeation über einen gesamten Produktlebenszyklus erfüllen zu können.Previously sought alternatives to form at least parts of such heat exchangers made of plastic, usually failed because plastic components do not have sufficient strength in terms of a required material thickness, which is necessary in order to meet required tightness, thermal conductivity, strength and permeation over an entire product life cycle can ,
Die vorliegende Erfindung beschäftigt sich daher mit dem Problem, für eine Wärmeübertragerplatte der gattungsgemäßen Art eine verbesserte oder zumindest eine alternative Ausführungsform anzugeben, die insbesondere kostengünstiger und leichter herzustellen ist.The present invention therefore deals with the problem of providing for a heat exchanger plate of the generic type an improved or at least one alternative embodiment, which is in particular less expensive and easier to manufacture.
Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matter of
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, eine Wärmeübertragerplatte für einen Wärmeübertrager, bspw. für einen Batteriekühler, sowohl kostengünstiger als auch leichter herstellbar auszubilden, indem zumindest eine Kanalplatte der Wärmeübertragerplatte, welche mit einer Deckplatte dicht verbunden wird und damit eine innenliegende Kanalstruktur begrenzt, aus Papier ausgebildet und mit der Deckplatte verbunden, insbesondere verklebt, wird. Alternativ kann auch ein Verschweißen erfolgen. Durch die Ausbildung aus Papier, bspw. aus so genanntem Hartpapier oder technischem Papier, ist es nicht nur möglich, eine Gewichtsreduzierung der erfindungsgemäßen Wärmeübertragerplatte zu ermöglichen, sondern zudem auch ein Verkleben derselben mit der Deckplatte, wobei in diesem Fall ein hierfür verwendeter Klebstoff unterschiedliche Temperaturdehnungen der Deckplatte und der Kanalplatte, sofern diese aus unterschiedlichen Werkstoffen ausgebildet sind, aufnehmen kann. Unter technischem Papier können beispielsweise in eine Matrix eingebettete Papierfasern verstanden werden. Die Matrix kann dabei Epoxidharz oder Phenolharz aufweisen. Durch das Verkleben der Kanalplatte mit der Deckplatte entfallen der bislang aufwändige und teure Lötprozess, ebenso wie die Verwendung von Iotplattierten Blechen, wodurch sich ebenfalls eine enorme Kostenreduzierung bei der Herstellung der erfindungsgemäßen Wärmeübertragerplatte erreichen lässt.The present invention is based on the general idea, a heat exchanger plate for a heat exchanger, for example. For a battery cooler, both cheaper and easier to produce by at least one channel plate of the heat exchanger plate, which is tightly connected to a cover plate and thus limits an internal channel structure, formed of paper and connected to the cover plate, in particular glued, is. Alternatively, a welding can be done. By training from paper, for example. From so-called hard paper or technical paper, it is not only possible to allow a weight reduction of the heat exchanger plate according to the invention, but also a bonding of the same with the cover plate, in which case an adhesive used for this purpose different thermal expansions the cover plate and the channel plate, if they are made of different materials, can accommodate. By technical paper, for example, paper fibers embedded in a matrix can be understood. The matrix may include epoxy resin or phenolic resin. By bonding the channel plate with the cover plate eliminates the previously consuming and expensive soldering process, as well as the use of Iotplattierten sheets, which can also achieve a huge cost reduction in the production of heat exchanger plate according to the invention.
Als Klebstoff wird hierbei bspw. ein thermoplastisches Klebstoffsystem auf Folienbasis verwendet, das eine Kaschierung zumindest der Kanalplatte und/oder der Deckplatte sowie nach dem Zusammenbau eine Verklebung der beiden Plattenteile unter Druck ermöglicht. Der Klebstoff gewährleistet dabei nicht nur die Kompensation der im Betrieb der erfindungsgemäßen Wärmeübertragerplatte auftretenden Wärmedehnung, sondern zudem auch die Dichtigkeit.As an adhesive in this case, for example, a thermoplastic adhesive system based on film is used, which allows a lamination of at least the channel plate and / or the cover plate as well as an assembly of the two plate members under pressure after assembly. The adhesive does not only guarantee that Compensation of the thermal expansion occurring during operation of the heat exchanger plate according to the invention, but also also the tightness.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung ist zumindest die Kanalplatte aus technischem Papier mit einer Dichte von ca. 1,35 - 1,90 g je Kubikzentimeter ausgebildet. Technisches Papier kann je nach Anwendungsfall spezifiziert werden. Analog dem Fasergehalt in Kunststoffen.In an advantageous development of the solution according to the invention, at least the channel plate is formed of technical paper with a density of about 1.35-1.90 g per cubic centimeter. Technical paper can be specified according to the application. Analogous to the fiber content in plastics.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung ist die Deckplatte aus Papier, aus Kunststoff oder aus Metall, insbesondere aus Aluminium, ausgebildet. Bereits diese nicht abschließende Aufzählung lässt erahnen, welche mannigfaltige Möglichkeiten bezüglich der Materialauswahl für die Deckplatte bestehen, da diese nicht wie bislang mit der Kanalplatte verlötet, sondern nur noch verbunden, insbesondere verklebt, werden muss. Alternativ ist auch eine Ausbildung aus einem keramischen Werkstoff denkbar. Für den Fall, dass die Platte wie bisher aus Aluminium ausgebildet ist, ist mit der erfindungsgemäßen Wärmeübertragerplatte eine erhebliche Gewichtseinsparung möglich, da die Kanalplatte stets aus Papier ausgebildet ist.In an advantageous development of the solution according to the invention, the cover plate made of paper, plastic or metal, in particular aluminum, is formed. Already this non-exhaustive enumeration gives an idea of the manifold possibilities with regard to the choice of material for the cover plate, since it does not have to be soldered to the channel plate as before, but only has to be connected, in particular adhesively bonded. Alternatively, a training of a ceramic material is conceivable. In the event that the plate is formed as previously made of aluminum, a significant weight saving is possible with the heat exchanger plate according to the invention, since the channel plate is always formed from paper.
Bei einer weiteren vorteilhaften Ausführungsform besteht die Einbindematrix aus einem thermoplastischen Kunststoff, wie beispielsweise Polypropylen, Polyethylen, Polyamid, Acrylnitril-Butadien-Styrol, Polyethylenterephthalat, Polyetheretherketon oder ähnliches. Der Vorteil dabei liegt im Schmelzpunkt der Kunststoffe, so dass die Deckplatte, gleich aus welchem Material, damit dicht und fest verbunden werden kann.In a further advantageous embodiment, the binding matrix consists of a thermoplastic plastic, such as polypropylene, polyethylene, polyamide, acrylonitrile-butadiene-styrene, polyethylene terephthalate, polyetheretherketone or the like. The advantage of this lies in the melting point of the plastics, so that the cover plate, no matter what material, so that it can be tightly and firmly connected.
Bei einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Lösung weist die Kanalplatte einen angeformten Einlassstutzen und/oder einen angeformten Auslassstutzen auf. Derartige Ein- bzw. Auslassstutzen lassen sich mit entsprechenden Umformwerkzeugen vergleichsweise einfach in die aus Papier ausgebildete Kanalplatte mit einformen, wobei selbstverständlich weitere konstruktive Merkmale, wie bspw. Kupplungen, mit angeformt werden können.In a further advantageous embodiment of the solution according to the invention, the channel plate has an integrally formed inlet connection and / or an integrally formed outlet connection. Such inlet or outlet can be with appropriate forming tools comparatively easy in the formed of paper channel plate with molding, of course, further structural features, such as. Couplings, can be molded with.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung weist die in die Kanalplatte eingeformte Kanalstruktur einen Einströmbereich, einen Kanalbereich, einen Umlenkbereich sowie einen Rückströmbereich auf. Je nach Ausbildung des Formwerkzeugs zur Herstellung der Kanalplatte lassen sich somit unterschiedlichste Strömungsbereiche der Kanalstruktur vergleichsweise einfach fertigen. Selbstverständlich ist dabei denkbar, dass die Deckplatte als ebene Platte ausgebildet ist oder aber ebenfalls entsprechende Strukturen aufweist, wobei in diesem Fall die durch die Deckplatte und die Kanalplatte zusammen gebildete, innenliegende Kanalstruktur durch Kanalgeometrien in der Deckplatte und Kanalgeometrien in der Kanalplatte gebildet werden.In an advantageous development of the solution according to the invention, the channel structure formed in the channel plate has an inflow region, a channel region, a deflection region and a return flow region. Depending on the design of the mold for the production of the channel plate, a wide variety of flow regions of the channel structure can thus be manufactured comparatively easily. Of course, it is conceivable that the cover plate is formed as a flat plate or likewise has corresponding structures, in which case the inner channel structure formed by the cover plate and the channel plate are formed by channel geometries in the cover plate and channel geometries in the channel plate.
Bei einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Lösung ist zwischen der Kanalplatte und der Deckplatte eine Turbulenzeinlage, insbesondere eine Turbulenzeinlage aus Metall, angeordnet, die mit der Kanalplatte und/oder der Deckplatte verbunden, insbesondere verklebt oder verschweißt, ist. In diesem Fall kann bspw. die Kanalplatte wannenartig ausgeformt sein, so dass die Turbulenzeinlage in die Kanalplatte eingelegt und mit dieser verklebt oder verschweißt wird. Die Turbulenzeinlage dient dabei der Erzeugung von Strömungsturbulenzen und einem verbesserten Wärmeübertrag. Zudem dient eine derartige Turbulenzeinlage der Strukturfestigkeit, insbesondere sofern diese zusätzlich mit der Deckplatte verbunden, beispielsweise verklebt oder verschweißt, ist, wodurch die erfindungsgemäße Wärmeübertragerplatte höhere Innendrücke als auch generell höhere Kräfte ertragen kann.In a further advantageous embodiment of the solution according to the invention, a turbulence insert, in particular a turbulence insert made of metal, is arranged between the channel plate and the cover plate, which is connected, in particular glued or welded, to the channel plate and / or the cover plate. In this case, for example, the channel plate may be formed like a trough, so that the turbulence insert is inserted into the channel plate and adhesively bonded or welded thereto. The turbulence insert serves to generate turbulence and an improved heat transfer. In addition, such a turbulence insert of the structural strength, in particular if it is additionally connected to the cover plate, for example glued or welded, is used, whereby the heat exchanger plate according to the invention can withstand higher internal pressures as well as generally higher forces.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung ist auf der Wärmeübertragerplatte ein elektrischer Kontakt, insbesondere eine Schaltung oder eine Erdung, aufgedruckt, das heißt insbesondere mittels Kaschieren oder mittels Siebdruckverfahrens aufgebracht. Hierdurch lassen sich insbesondere bislang in diesem Bereich erforderliche zusätzliche Montageschritte erübrigen.In an advantageous development of the solution according to the invention, an electrical contact, in particular a circuit or a ground, printed on the heat exchanger plate, that is, in particular applied by means of laminating or by screen printing process. As a result, in particular, additional installation steps that have hitherto been required in this area can be dispensed with.
Die vorliegende Erfindung beruht weiter auf dem allgemeinen Gedanken, ein Verfahren zur Herstellung einer solchen Wärmeübertragerplatte anzugeben, bei welchem zunächst die Kanalplatte aus Papier geformt und anschließend auf diese und/oder auf die Deckplatte ein Klebstoff, insbesondere durch Siebdruck, aufgebracht wird. Die Deckplatte selbst kann dabei aus Metall, aus Keramik oder ebenfalls aus Papier ausgebildet sein. Anschließend wird die Kanalplatte gegen die Deckplatte verspannt und in einen Ofen gebracht, in dem die Wärmeübertragerplatte bei einer Temperatur zwischen 80 °C und 300 °C für maximal zehn Minuten erhitzt und dadurch der Klebstoff aktiviert und ausgehärtet wird. Durch diese vergleichsweise kurze Prozesszeit im Vergleich zu bisherigen Lötprozessen, lässt sich die erfindungsgemäße Wärmeübertragerplatte deutlich kostengünstiger fertigen.The present invention is further based on the general idea of specifying a method for producing such a heat transfer plate, in which first the channel plate is formed from paper and then an adhesive, in particular by screen printing, is applied to this and / or to the cover plate. The cover plate itself can be made of metal, ceramic or paper. Subsequently, the channel plate is clamped against the cover plate and placed in an oven in which the heat exchanger plate is heated at a temperature between 80 ° C and 300 ° C for a maximum of ten minutes, thereby activating and curing the adhesive. As a result of this comparatively short process time in comparison to previous soldering processes, the heat transfer plate according to the invention can be produced significantly less expensively.
Generell lassen sich mit der erfindungsgemäßen Wärmeübertragerplatte bzw. dem erfindungsgemäßen Verfahren sowohl die primären als auch die sekundären Herstellungskosten deutlich senken. Dies geschieht durch die Materialwahl, da bei der erfindungsgemäßen Kanalplatte der Werkstoff Papier den bisherigen Werkstoff Metall ersetzt. Die Herstellungskosten eines solchen Papierkanalteils, wie auch die Rohstoffkosten liegen dabei deutlich unter denen von Metallen und Kunststoffen. Zudem kann aufgrund der geringeren Dichte des Papiers eine deutlich leichtere Wärmeübertragerplatte hergestellt werden.In general, both the primary and the secondary production costs can be significantly reduced with the heat exchanger plate according to the invention or the method according to the invention. This is done by the choice of material, since in the channel plate according to the invention the material paper replaced the previous material metal. The cost of such a paper channel part, as well as the raw material costs are significantly lower than those of metals and plastics. In addition, due to the lower density of the paper, a much lighter heat exchanger plate can be produced.
Zusätzlich sind die Ofentemperaturen und damit die Betriebs- und Anschaffungskosten deutlich geringer als bei einem vergleichbaren Lötofen. Im günstigsten Falle entfallen zudem sämtliche bislang zur Entfettung erforderlichen Anlagen. Wie auch bereits beim erfindungsgemäßen Verfahren beschrieben, sind die Ofendurchlaufzeiten mit wenigen Minuten im Vergleich zu einem Lötprozess deutlich geringer, wodurch die Fertigungskosten gesenkt werden können. Durch die Verklebung der Deckplatte mit der Kanalplatte können darüber hinaus unterschiedliche Werkstoffe für diese Platten verwendet werden.In addition, the oven temperatures and thus the operating and acquisition costs are significantly lower than with a comparable soldering oven. In the best case also eliminates all previously required for degreasing facilities. As already described in the method according to the invention, the furnace throughput times are significantly lower in a few minutes compared to a soldering process, whereby the manufacturing costs can be reduced. By bonding the cover plate with the channel plate, moreover, different materials can be used for these plates.
Durch das erfindungsgemäße Herstellungsverfahren lassen sich wie beim Kleben allgemein bekannt somit unterschiedlichste Materialien mit unterschiedlichsten Wärmeausdehnungskoeffizienten und unterschiedlichen Korrosionspotenzialen miteinander verbinden, bei gleichzeitig minimalem Klebstoffeinsatz. Bei einem sparsamen Auftrag des Klebstoffs, bspw. als Klebstofffolie, ist dieser auch um ein vielfaches kostengünstiger als bspw. Epoxi- oder Silikonmaterialien. Darüber hinaus vereinfacht eine derartige Klebstofffolie die Verarbeitung des Klebstoffs erheblich, da keine separaten Maschinen, wie bspw. Pumpen, Düsen, Ventile oder Ähnliches erforderlich sind, ebenso wenig wie ein spezielles Prozessknowhow. Der kaschierte Klebstoff benötigt zum Aushärten üblicherweise weniger als zehn Minuten und ermöglicht darüber hinaus einen hohen Automatisierungsgrad. Insbesondere ist mit derartigen kaschierten Klebstofffolien kein Raupenauftrag mit anschließender Aushärtezeit erforderlich. Die verwendeten Klebstoffe zeigen darüber hinaus eine hervorragende Medienbeständigkeit, die nahezu mit derjenigen von Lot zu vergleichen ist.As a result of the manufacturing method according to the invention, it is thus possible, as is generally known in the case of gluing, to connect a very wide variety of materials with very different coefficients of thermal expansion and different corrosion potentials, while at the same time minimizing the use of adhesive. In the case of a sparing application of the adhesive, for example as an adhesive film, it is also much more cost-effective than, for example, epoxy or silicone materials. Moreover, such an adhesive film greatly simplifies the processing of the adhesive, since no separate machines such as pumps, nozzles, valves, or the like are required, nor does a special process knowhow. The laminated adhesive usually takes less than ten minutes to cure and also allows a high degree of automation. In particular, no caterpillar application with subsequent curing time is required with such laminated adhesive films. The adhesives used also show excellent media resistance, which is almost comparable to that of solder.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Komponenten beziehen.Preferred embodiments of the invention are illustrated in the drawings and will be explained in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.
Dabei zeigen, jeweils schematisch,
- Fig. 1
- eine Schnittdarstellung durch eine erfindungsgemäße Wärmeübertragerplatte,
- Fig. 2
- eine Explosionsdarstellung der erfindungsgemäßen Wärmeübertragerplatte.
- Fig. 1
- a sectional view through a heat transfer plate according to the invention,
- Fig. 2
- an exploded view of the heat exchanger plate according to the invention.
Entsprechend den
Die Deckplatte 4 kann dabei ebenfalls aus Papier, aber auch aus Kunststoff, aus Metall, bspw. aus Aluminium, oder aus Keramik bzw. einem keramischen Verbundwerkstoff, ausgebildet sein.The
Betrachtet man die
An der Kanalplatte 3 können selbstverständlich weitere Elemente zusätzlich zu Kanalstruktur 5, wie bspw. ein Einlassstutzen 7 und/oder ein Auslassstutzen 8 mit angeformt werden. Ebenfalls kann die Kanalstruktur 5 einen Einströmbereich 9, einen Umlenkbereich 10, einen Kanalbereich 11 sowie einen Rückströmbereich 12 umfassen. Dabei können gemäß der
Um einen Wärmeübertrag der erfindungsgemäßen Wärmeübertragerplatte 1 verbessern zu können, kann zwischen der Kanalplatte 3 und der Deckplatte 4 eine Turbulenzeinlage 13 angeordnet sein, die bspw. aus Metall ausgebildet und mit der Kanalplatte 3 verklebt oder verschweißt ist. Zusätzlich oder alternativ kann die Turbulenzeinlage 13, die zur Erzeugung von Strömungsturbulenzen und damit zu einem gesteigerten Wärmeübertrag führt, auch mit der Deckplatte 4 verbunden, insbesondere verklebt oder verschweißt, sein.In order to be able to improve a heat transfer of the
Ebenfalls vorgesehen sein kann ein elektrischer Kontakt 14, der gemäß der
Hergestellt wird die erfindungsgemäße Wärmeübertragerplatte 1, indem zunächst zumindest die Kanalplatte 3 aus Papier geformt und anschließend mit der Deckplatte 4, welche ebenfalls aus Papier, aber auch aus Metall oder Kunststoff oder Keramik ausgebildet sein kann, verbunden, insbesondere verklebt oder verschweißt, wird. Hierzu wird üblicherweise auf die Deckplatte 4 ein Klebstoff 6, insbesondere in der Art einer Klebstofffolie, oder mittels Siebdruck appliziert. Anschließend wird die Kanalplatte 3 gegen die Deckplatte 4 verspannt und in einen Ofen verbracht, in dem die Wärmeübertragerplatte 1 bei einer Temperatur T zwischen 80°C und 300°C für maximal zehn Minuten erhitzt und dadurch der Klebstoff 6 aktiviert und ausgehärtet wird. Vor dem Verkleben der Deckplatte 4 mit der Kanalplatte 3 kann selbstverständlich noch die Turbulenzeinlage 13 eingebracht werden.The inventive
Mit der erfindungsgemäßen Wärmeübertragerplatte 1 lässt sich diese nicht nur deutlich kostengünstiger im Vergleich zum bisherigen Lötprozessen und deutlich kostengünstiger im Hinblick auf bisherige Werkstoffe herstellen, sondern zudem auch deutlich gewichtsreduziert, was insbesondere beim Einsatz in Kraftfahrzeugen von großem Vorteil ist.With the
Claims (10)
dadurch gekennzeichnet,
dass zumindest die Kanalplatte (3) aus Papier ausgebildet und mit der Deckplatte (4) verbunden, insbesondere verklebt oder verschweißt, ist.Heat exchanger plate (1) for a heat exchanger (2), in particular for a battery cooler, with a deformed channel plate (3) and a cover plate (4) tightly connected thereto, which together define an internal channel structure (5),
characterized,
in that at least the channel plate (3) is formed of paper and connected to the cover plate (4), in particular adhesively bonded or welded.
dadurch gekennzeichnet, dass
zumindest die Kanalplatte (3) aus technischem Papier mit einer Dichte von ca. 1,35g/cm3 ausgebildet ist.Heat exchanger plate according to claim 1,
characterized in that
at least the channel plate (3) made of technical paper with a density of about 1.35 g / cm 3 is formed.
dadurch gekennzeichnet, dass
die Deckplatte (4) aus Papier, aus Keramik, aus Kunststoff oder aus Metall, insbesondere aus Aluminium, ausgebildet ist.Heat exchanger plate according to claim 1 or 2,
characterized in that
the cover plate (4) made of paper, ceramic, plastic or metal, in particular aluminum, is formed.
dadurch gekennzeichnet, dass
die Kanalplatte (3) einen angeformten Einlassstutzen (7) und/oder einen angeformten Auslassstutzen (8) aufweist.Heat exchanger plate according to one of claims 1 to 3,
characterized in that
the channel plate (3) has an integrally formed inlet connection (7) and / or an integrally formed outlet connection (8).
dadurch gekennzeichnet, dass
characterized in that
dadurch gekennzeichnet, dass
zwischen der Kanalplatte (3) und der Deckplatte (4) eine Turbulenzeinlage (13), insbesondere aus Metall, angeordnet ist, die mit der Kanalplatte (3) und/oder der Deckplatte (4) verbunden, insbesondere verklebt oder verschweißt, ist.Heat exchanger plate according to one of the preceding claims,
characterized in that
between the channel plate (3) and the cover plate (4) a turbulence insert (13), in particular of metal, is arranged, which is connected to the channel plate (3) and / or the cover plate (4), in particular glued or welded.
dadurch gekennzeichnet, dass
auf der Wärmeübertragerplatte (4) ein elektrischer Kontakt (14), insbesondere eine Schaltung oder eine Erdung, aufgedruckt sind.Heat exchanger plate according to one of the preceding claims,
characterized in that
on the heat exchanger plate (4) an electrical contact (14), in particular a circuit or a ground, are printed.
dadurch gekennzeichnet, dass
eine Turbulenzeinlage (13) in die Kanalplatte (3) eingelegt und anschließend die Kanalplatte (3) gegen die Deckplatte (4) verspannt wird.Method according to claim 9,
characterized in that
a turbulence insert (13) inserted into the channel plate (3) and then the channel plate (3) is clamped against the cover plate (4).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102016201405.6A DE102016201405A1 (en) | 2016-01-29 | 2016-01-29 | heat exchanger plate |
Publications (1)
Publication Number | Publication Date |
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EP3199899A1 true EP3199899A1 (en) | 2017-08-02 |
Family
ID=57868102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17152425.9A Withdrawn EP3199899A1 (en) | 2016-01-29 | 2017-01-20 | Heat exchanger plate |
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EP (1) | EP3199899A1 (en) |
DE (1) | DE102016201405A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114079098A (en) * | 2020-08-21 | 2022-02-22 | 马勒国际有限公司 | Method for producing a composite part made of a cooling plate and a structural component |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113437432B (en) * | 2020-03-06 | 2022-06-14 | 比亚迪股份有限公司 | Battery package box, battery package and car |
DE102021201680B4 (en) | 2021-02-23 | 2022-10-13 | Gubesch Thermoforming GmbH | Process for manufacturing a plastic component and a heat exchanger |
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DE102009018787A1 (en) * | 2009-04-24 | 2010-10-28 | Akasol Engineering Gmbh | battery module |
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DE102013204744A1 (en) * | 2013-03-18 | 2014-09-18 | Behr Gmbh & Co. Kg | Layer heat transfer device and method for producing a layer heat transfer device |
EP2854211A1 (en) * | 2013-09-30 | 2015-04-01 | MAHLE Behr GmbH & Co. KG | Heating and cooling device for a battery |
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JPS57207796A (en) * | 1981-06-17 | 1982-12-20 | Mitsubishi Electric Corp | Heat exchanger |
JPS5895A (en) * | 1981-06-23 | 1983-01-05 | Mitsubishi Electric Corp | Manufacture of heat exchanger made of paper |
JPS5878093A (en) * | 1981-11-02 | 1983-05-11 | Sanyo Electric Co Ltd | Heat accumulating type heat exchanger |
JPS58193093A (en) * | 1982-05-06 | 1983-11-10 | Mitsubishi Electric Corp | Manufacture of paper-material heat-exchange element |
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DE102008059955B4 (en) | 2008-12-02 | 2011-07-21 | Daimler AG, 70327 | Method for producing a cooling plate with an integrated cooling channel for a battery and use of a cooling plate |
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CN114079098A (en) * | 2020-08-21 | 2022-02-22 | 马勒国际有限公司 | Method for producing a composite part made of a cooling plate and a structural component |
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