EP0797066A1 - Headerbox of heat exchanger, more particularly for automotive vehicles - Google Patents
Headerbox of heat exchanger, more particularly for automotive vehicles Download PDFInfo
- Publication number
- EP0797066A1 EP0797066A1 EP97103936A EP97103936A EP0797066A1 EP 0797066 A1 EP0797066 A1 EP 0797066A1 EP 97103936 A EP97103936 A EP 97103936A EP 97103936 A EP97103936 A EP 97103936A EP 0797066 A1 EP0797066 A1 EP 0797066A1
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- European Patent Office
- Prior art keywords
- dimensions
- tubes
- alignment
- different
- indentations
- Prior art date
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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
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/454—Heat exchange having side-by-side conduits structure or conduit section
- Y10S165/492—Plural conduits with ends connected to tube plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49373—Tube joint and tube plate structure
Definitions
- the invention relates to manifold plates, or manifolds, for heat exchangers, in particular for motor vehicles, and more particularly those which comprise in a central part at least one row of parallel holes suitable for receiving ends of tubes.
- the parallel holes are generally produced in stampings, by punching.
- a second punching step holes are made, one by stamping, and the shapes and dimensions of which are adapted to the cross section of tubes to be introduced.
- the stamping carried out in the first step can only correspond to a single type of tube, the dimensions of which are chosen.
- one of the objects of the invention is to provide a collector which does not have the drawback of the collectors of the prior art.
- the invention provides a manifold for a heat exchanger of the type described in the introduction, in which each hole is made in a deep-drawn comprising at least two aligned indentations, of respective dimensions chosen, and capable of being punched individually or in combination , by punches of different characteristic dimensions in at least the alignment direction of the indentations, to allow the passage of tubes of different dimensions in at least this alignment direction.
- each imprint is capable of being punched, by punches of different characteristic dimensions, in a direction perpendicular to the direction of alignment of the imprints of a stamped, to allow the passage of tubes d 'at least two different dimensions in this direction perpendicular to the alignment.
- a single stamping tool makes it possible to produce stampings whose aligned imprints allow the production of holes of different sections.
- a single footprint will suffice to make a small hole, while two aligned and consecutive footprints will allow for example the production of a larger hole, or two smaller holes.
- At least one of the imprints of a stamped has a dimension in the direction of alignment which is different from the dimension (s) of the other (or the other) imprint (s).
- each stamp includes three aligned indentations capable of being punched individually or in combination to allow the passage of tubes of three different dimensions in the direction of alignment, and of five different dimensions in a direction perpendicular to this direction of alignment.
- a heat exchanger generally comprises one or two fluid boxes (not shown) into which open the ends of metal tubes 1 (see FIG. 5), and forming a bundle of tubes spaced by fins.
- collector plate 2 which also forms the cover of the fluid box.
- the collector plate 2 comprises, on the one hand, a central part called "bottom”, and on the other hand, over the entire periphery of its central part, a shaped peripheral edge 4, for example by folding, which delimits a groove 5 U-shaped arranged to accommodate a peripheral heel formed on the periphery of the wall forming the fluid box.
- Each pressed 6-i comprises a hole 7 (in the example illustrated in FIG. 1 only the pressed 6-3 is provided with a hole) capable of receiving one end of the tube 1.
- the stampings are preferably intended to accommodate oblong tubes (also called flat tubes) having a small axis B (or width), and a large axis A (or length).
- oblong tubes also called flat tubes
- the tubes are positioned in the plate manifold 2 parallel to the short side, or transverse side, of the manifold plate 2. Consequently, in the following description, it will be considered that the length of a section of tube 1 (or of hole 7) corresponds to a direction substantially perpendicular to the long side (or longitudinal side) of the collector plate 2, while the width of a section of tube 1 (or hole 7) corresponds to a direction substantially perpendicular to the short side (or transverse side) of the plate collector 2.
- each stamped part 7 is subdivided into at least two sub-stamps 8a and 8b each forming an imprint.
- each stamped 6-i is in fact subdivided into three sub-stamps 8a to 8c.
- stampings 6-i one starts from a blank whose peripheral edges 4 surrounding the flat central part 3 preferably have already a conformation forming the U-shaped groove 5. Then by stamping using a stamping tool comprising a multiplicity of parallel stamping heads each comprising as many aligned sub-parts as necessary (three in the example illustrated), the central part 3 of the blank is stamped in order to form the multiplicity stamping 6-i each comprising as many sub-stamps (or imprints) 8 aligned as each head of the stamping tool has sub-parts.
- pre-collector or standard blank which can be transformed by punching into a large number of collector plates 2 adapted to receive tubes of different sections, respectively.
- first type of collector 2 of which only the undercuts 8a have a hole 7 of length A1 (see FIG. 2) and of width B1 (see FIG. 5).
- the hole 7 of the stamped 6-3 is made over the entire length of the three sub-stamps 8a to 8c (or indentations), so that said hole has a length A3 (see figures 2 and 4).
- manifold plates 2 such as for example a first variant in which the holes are made on two consecutive sub-stamps 8a and 8b, in order to accommodate tubes of length A2 (see FIG. 2), or else a second variant in which two rows of holes of length A1 and A4 are produced using, on the one hand, the undercuts 8a, and on the other hand, the combination of consecutive undercuts 8b and 8c.
- the invention also provides that the stampings 6-i, and therefore the undercuts 8, have a dimension in the direction YY perpendicular to the alignment direction XX of the undercuts, sufficient to allow the production of at least two different widths of holes (see Figure 5).
- stampings 7 are wide enough to allow the production of holes of five different widths B. In the example illustrated in FIG. 5, only three different widths B1 to B3 have been materialized.
- collectors provided with holes of a first section into collectors provided with holes of a second section greater in length and / or width than the first section.
- the collector plate Once the collector plate has been produced, it only remains to introduce the tubes into the holes, then to join, by soldering or welding, the external wall of these tubes to the collector plate, at the punched imprints forming said holes.
- the number of under-stamps (or footprints) of the same stamp can be much greater than two, and the width of the stamps can be adapted to allow more than five different widths of holes.
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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)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
L'invention concerne les plaques collectrices, ou collecteurs, pour échangeur de chaleur, notamment de véhicule automobile, et plus particulièrement celles qui comprennent dans une partie centrale au moins une rangée de trous parallèles propres à recevoir des extrémités de tubes.The invention relates to manifold plates, or manifolds, for heat exchangers, in particular for motor vehicles, and more particularly those which comprise in a central part at least one row of parallel holes suitable for receiving ends of tubes.
Les trous parallèles, dont la forme est adaptée à celle du tube qui doit les traverser, sont généralement réalisés dans des emboutis, par poinçonnage.The parallel holes, the shape of which is adapted to that of the tube which must pass through them, are generally produced in stampings, by punching.
Pour fabriquer un tel collecteur, il faut tout d'abord partir d'une ébauche appelée "médaillon" que, dans une première étape on emboutit à l'aide d'un premier outil, afin de former une pluralité d'emboutis parallèles.To manufacture such a collector, it is first necessary to start from a blank called a "medallion" which, in a first step, is stamped using a first tool, in order to form a plurality of parallel stamps.
Dans une seconde étape de poinçonnage, on réalise des trous, un par embouti, et dont les formes et dimensions sont adaptées à la section transversale de tubes à introduire. L'emboutissage réalisé dans la première étape ne peut correspondre qu'à un unique type de tube dont les dimensions sont choisies.In a second punching step, holes are made, one by stamping, and the shapes and dimensions of which are adapted to the cross section of tubes to be introduced. The stamping carried out in the first step can only correspond to a single type of tube, the dimensions of which are chosen.
En conséquence, si l'on souhaite réaliser un échangeur de chaleur muni de tubes de dimensions sensiblement différentes, il est nécessaire de prendre une nouvelle ébauche vierge d'emboutissage, puis d'emboutir celle-ci à l'aide d'un nouvel outil d'emboutissage et enfin de la poinçonner avec un nouveau poinçon.Consequently, if it is desired to produce a heat exchanger provided with tubes of appreciably different dimensions, it is necessary to take a new blank blank for stamping, then to stamp it using a new tool stamping and finally punching it with a new punch.
Il n'existe donc pas de collecteur d'un type standard, susceptible d' être adapté aux dimensions de tubes de sections différentes.There is therefore no manifold of a standard type, capable of being adapted to the dimensions of tubes of different sections.
En conséquence, un des buts de l'invention est de procurer un collecteur qui ne présente pas l'inconvénient des collecteurs de la technique antérieure.Consequently, one of the objects of the invention is to provide a collector which does not have the drawback of the collectors of the prior art.
L'invention propose à cet effet un collecteur pour échangeur de chaleur du type décrit en introduction, dans lequel chaque trou est réalisé dans un embouti comprenant au moins deux empreintes alignées, de dimensions respectives choisies, et susceptibles d'être poinçonnées individuellement ou en combinaison, par des poinçons de dimensions caractéristiques différentes dans au moins la direction d'alignement des empreintes, pour autoriser le passage de tubes de dimensions différentes selon au moins cette direction d'alignement.To this end, the invention provides a manifold for a heat exchanger of the type described in the introduction, in which each hole is made in a deep-drawn comprising at least two aligned indentations, of respective dimensions chosen, and capable of being punched individually or in combination , by punches of different characteristic dimensions in at least the alignment direction of the indentations, to allow the passage of tubes of different dimensions in at least this alignment direction.
Selon une autre caractéristique de l'invention, chaque empreinte est susceptible d'être poinçonnée, par des poinçons de dimensions caractéristiques différentes, dans une direction perpendiculaire à la direction d'alignement des empreintes d'un embouti, pour autoriser le passage de tubes d'au moins deux dimensions différentes selon cette direction perpendiculaire à l'alignement.According to another characteristic of the invention, each imprint is capable of being punched, by punches of different characteristic dimensions, in a direction perpendicular to the direction of alignment of the imprints of a stamped, to allow the passage of tubes d 'at least two different dimensions in this direction perpendicular to the alignment.
De la sorte, un unique outil d'emboutissage permet de réaliser des emboutis dont les empreintes alignées autorisent la réalisation de trous de sections différentes. Une unique empreinte suffira à la réalisation d'un trou de petites dimensions, tandis que deux empreintes alignées et consécutives permettront par exemple la réalisation d'un trou de plus grandes dimensions, ou bien de deux trous de plus petites dimensions.In this way, a single stamping tool makes it possible to produce stampings whose aligned imprints allow the production of holes of different sections. A single footprint will suffice to make a small hole, while two aligned and consecutive footprints will allow for example the production of a larger hole, or two smaller holes.
Préférentiellement, l'une au moins des empreintes d'un embouti présente une dimension selon la direction d'alignement qui est différente de la (ou des) dimension(s) de l'autre (ou les autres) empreinte(s).Preferably, at least one of the imprints of a stamped has a dimension in the direction of alignment which is different from the dimension (s) of the other (or the other) imprint (s).
Dans un mode de réalisation préféré de l'invention, chaque embouti comprend trois empreintes alignées susceptibles d'être poinçonnées individuellement ou en combinaison pour autoriser le passage de tubes de trois dimensions différentes selon la direction d'alignement, et de cinq dimensions différentes selon une direction perpendiculaire à cette direction d'alignement.In a preferred embodiment of the invention, each stamp includes three aligned indentations capable of being punched individually or in combination to allow the passage of tubes of three different dimensions in the direction of alignment, and of five different dimensions in a direction perpendicular to this direction of alignment.
Ainsi, en partant d'une ébauche standard, que l'on emboutit à l'aide d'un unique outil d'emboutissage capable de réaliser en une unique opération une pluralité d'emboutis parallèles comportant chacun trois empreintes alignées, on peut réaliser, à l'aide de poinçons de formes différentes, au moins quinze collecteurs dont les trous présentent des dimensions différentes.Thus, starting from a standard blank, which is stamped using a single stamping tool capable of producing in a single operation a plurality of parallel stamps each comprising three aligned impressions, it is possible to produce, using punches of different shapes, at least fifteen collectors whose holes have different dimensions.
L'invention propose également un procédé de fabrication d'une plaque collectrice pour échangeur de chaleur, notamment de véhicule automobile, comprenant les étapes suivantes :
- prévoir une ébauche comportant une partie centrale plane;
- emboutir ladite partie centrale de l'ébauche de sorte qu'elle comporte une pluralité d'emboutis parallèles les uns aux autres et comprenant chacun au moins deux empreintes alignées de dimensions respectives choisies; et
- poinçonner l'une au moins des empreintes de chaque embouti de ladite pluralité d'emboutis, individuellement ou en combinaison, de sorte que l'on réalise des trous de dimensions adaptées pour autoriser le passage d'extrémités de tubes de dimensions différentes selon au moins la direction d'alignement.
- providing a blank comprising a flat central part;
- stamping said central part of the blank so that it comprises a plurality of stampings parallel to each other and each comprising at least two aligned imprints of respective dimensions chosen; and
- punching at least one of the imprints of each stamp of said plurality of stamps, individually or in combination, so that holes of suitable dimensions are made to allow the passage of tube ends of different dimensions according to at least alignment direction.
Dans la description qui suit, faite à titre d'exemple, on se réfère aux dessins annexés, sur lesquels :
- la figure 1 illustre une vue en perspective d'une partie d'un collecteur selon l'invention dans un mode de réalisation préféré;
- la figure 2 est une coupe transversale selon la ligne II-II du collecteur de la figure 1;
- la figure 3 est une vue en coupe transversale selon la ligne III-III du collecteur de la figure 1;
- la figure 4 est une vue en coupe transversale selon la ligne IV-IV du collecteur de la figure 1; et
- la figure 5 est une vue en coupe longitudinale selon l'axe V-V du collecteur de la figure 1.
- Figure 1 illustrates a perspective view of a portion of a manifold according to the invention in a preferred embodiment;
- Figure 2 is a cross section along line II-II of the collector of Figure 1;
- Figure 3 is a cross-sectional view along line III-III of the collector of Figure 1;
- Figure 4 is a cross-sectional view along line IV-IV of the collector of Figure 1; and
- FIG. 5 is a view in longitudinal section along the axis VV of the collector of FIG. 1.
Un échangeur de chaleur comprend généralement une ou deux boîtes à fluide (non représentées) dans lesquelles débouchent des extrémités de tubes métalliques 1 (voir figure 5), et formant un faisceau de tubes espacés par des ailettes.A heat exchanger generally comprises one or two fluid boxes (not shown) into which open the ends of metal tubes 1 (see FIG. 5), and forming a bundle of tubes spaced by fins.
Ces tubes sont généralement maintenus parallèles les uns aux autres par une plaque collectrice 2 (ou collecteur) qui forme également couvercle de la boîte à fluide.These tubes are generally held parallel to each other by a collector plate 2 (or collector) which also forms the cover of the fluid box.
La plaque collectrice 2 comprend, d'une part, une partie centrale appelée "fond", et d'autre part, sur toute la périphérie de sa partie centrale, un bord périphérique conformé 4, par exemple par pliage, qui délimite une gorge 5 en U agencée pour loger un talon périphérique réalisé sur la périphérie de la paroi formant la boîte à fluide.The
La plaque collectrice 2 comprend, dans sa partie centrale, une multiplicité d'emboutis ou bossages 6-i (i=1 à n, n étant le nombre total d'emboutis), parallèles les uns aux autres. Chaque embouti 6-i comprend un trou 7 (sur l'exemple illustré figure 1 seul l'embouti 6-3 est muni d'un trou) susceptible de recevoir une extrémité de tube 1.The
Les emboutis sont de préférence destinés à loger des tubes de forme oblongue (encore appelés tubes plats) présentant un petit axe B (ou largeur), et un grand axe A (ou longueur). Habituellement, les tubes sont positionnés dans la plaque collectrice 2 parallèlement au petit côté, ou côté transversal, de la plaque collectrice 2. En conséquence, dans la suite de la description, on considérera que la longueur d'une section de tube 1 (ou de trou 7) correspond à une direction sensiblement perpendiculaire au grand côté (ou côté longitudinal) de la plaque collectrice 2, tandis que la largeur d'une section de tube 1 (ou de trou 7), correspond à une direction sensiblement perpendiculaire au petit côté (ou côté transversal) de la plaque collectrice 2.The stampings are preferably intended to accommodate oblong tubes (also called flat tubes) having a small axis B (or width), and a large axis A (or length). Usually the tubes are positioned in the
Comme cela est illustré sur la figure 3, l'espace entre deux emboutis consécutifs est plan.As illustrated in Figure 3, the space between two consecutive stamps is flat.
Selon l'invention, chaque embouti 7 est subdivisé en au moins deux sous-emboutis 8a et 8b formant chacun une empreinte. Dans l'exemple illustré sur les figures, chaque embouti 6-i est en fait subdivisé en trois sous-emboutis 8a à 8c.According to the invention, each stamped
Pour réaliser ces emboutis 6-i, on part d'une ébauche dont les bords périphériques 4 entourant la partie centrale plane 3 présentent, préférentiellement, déjà, une conformation formant la gorge en U 5. Puis par emboutissage à l'aide d'un outil d'emboutissage comportant une multiplicité de têtes d'emboutissage parallèles comprenant chacune autant de sous-parties alignées que cela est nécessaire (trois dans l'exemple illustré), on vient emboutir la partie centrale 3 de l'ébauche afin de former la multiplicité d'emboutis 6-i comprenant chacun autant de sous-emboutis (ou empreintes) 8 alignés que chaque tête de l'outil d'emboutissage comporte de sous-parties.To make these stampings 6-i, one starts from a blank whose peripheral edges 4 surrounding the flat central part 3 preferably have already a conformation forming the
Il est clair que le nombre de sous-emboutis (ou empreintes) subdivisant un embouti dépend du nombre total de tubes de sections différentes utilisés par un fabricant pour réaliser les différentes variantes d'échangeurs de chaleur qu'il commercialise.It is clear that the number of undercuts (or cavities) subdividing a stamping depends on the total number of tubes of different sections used by a manufacturer to produce the different variants of heat exchangers that he markets.
On dispose alors d'un "pré-collecteur" (ou ébauche standard) qui peut être transformé par poinçonnage en un grand nombre de plaques collectrices 2 adaptées pour recevoir des tubes de sections différentes, respectivement.There is then a "pre-collector" (or standard blank) which can be transformed by punching into a large number of
Par exemple, on peut réaliser un premier type de collecteur 2 dont seuls les sous-emboutis 8a comportent un trou 7 de longueur A1 (voir figure 2) et de largeur B1 (voir figure 5).For example, it is possible to produce a first type of
Dans l'exemple illustré sur les figures 1 et 4, le trou 7 de l'embouti 6-3 est réalisé sur toute la longueur des trois sous-emboutis 8a à 8c (ou empreintes), de sorte que ledit trou présente une longueur A3 (voir figures 2 et 4).In the example illustrated in FIGS. 1 and 4, the
On pourrait bien évidemment prévoir de nombreuses autres variantes de plaques collectrices 2, comme par exemple une première variante dans laquelle les trous sont réalisés sur deux sous-emboutis consécutifs 8a et 8b, afin de loger des tubes de longueur A2 (voir figure 2), ou bien une seconde variante dans laquelle on réalise deux rangées de trous de longueur A1 et A4 en utilisant, d'une part, les sous-emboutis 8a, et d'autre part, la combinaison des sous-emboutis consécutifs 8b et 8c. Dans ce dernier mode de réalisation, on peut ainsi loger, dans la largeur d'un boitier et par conséquent d'une plaque collectrice 2, deux tubes oblongs de dimensions sensiblement égales (si
De même que l'on peut jouer sur la longueur des trous 7, on peut également jouer, selon l'invention, sur la largeur des trous 7. En effet, l'invention prévoit également que les emboutis 6-i, et donc les sous-emboutis 8, présentent une dimension dans la direction Y-Y perpendiculaire à la direction d'alignement X-X des sous-emboutis, suffisante pour autoriser la réalisation d'au moins deux largeurs de trous différentes (voir figure 5). De préférence, les emboutis 7 sont suffisamment larges pour permettre la réalisation de trous de cinq largeurs B différentes. Sur l'exemple illustré figure 5, on a matérialisé seulement trois largeurs différentes B1 à B3.Just as one can play on the length of the
Ainsi, à l'aide d'un jeu complet de poinçons dont les têtes présentent des dimensions différentes, on peut à partir d'une ébauche emboutie selon l'invention (ou pré-collecteur), réaliser un très grand nombre de plaques collectrices 2 propres à loger des tubes de sections différentes. Cela permet, d'une part, d'avoir toujours à disposition un modèle d'ébauche standard (ou pré-collecteur) prêt à être poinçonné selon les besoins, et, d'autre part, de diminuer notablement les coûts de production des plaques collectrices.Thus, using a complete set of punches whose heads have different dimensions, it is possible, from a stamped blank according to the invention (or pre-collector), to produce a very large number of
De plus, il est également possible, en cas de besoin, d'adapter des collecteurs munis de trous d'une première section, en collecteurs munis de trous d'une seconde section supérieure en longueur et/ou largeur à la première section.In addition, it is also possible, if necessary, to adapt collectors provided with holes of a first section, into collectors provided with holes of a second section greater in length and / or width than the first section.
En résumé, pour réaliser une plaque collectrice selon l'invention, il faut effectuer les étapes suivantes :
- dans une première étape, on prévoit une ébauche comportant une partie centrale plane 3;
- dans une seconde étape, on emboutit la partie centrale 3 de l'ébauche à l'aide d'un outil d'emboutissage approprié, de sorte que cette partie centrale comporte une pluralité d'emboutis 6-i parallèles les uns aux autres et comprenant chacun au moins deux empreintes 8 (ou sous-emboutis) alignées, de dimensions respectives choisies; et
- dans une troisième étape, on poinçonne l'une au moins des empreintes 8 de chaque embouti de la pluralité d'emboutis 6-i réalisés à l'étape précédente, individuellement, ou en combinaison, de sorte que l'on réalise des
trous 7 de dimensions adaptées à l'introduction de tubes 1.
- in a first step, a blank is provided comprising a flat central part 3;
- in a second step, the central part 3 of the blank is stamped using an appropriate stamping tool, so that this central part comprises a plurality of stampings 6-i parallel to each other and comprising each at least two indentations 8 (or undercuts) aligned, of respective dimensions chosen; and
- in a third step, at least one of the indentations 8 of each stamp of the plurality of stamps 6-i made in the previous step is punched, individually or in combination, so that
holes 7 are made of dimensions adapted to the introduction of tubes 1.
Une fois la plaque collectrice réalisée, il ne reste plus qu'à introduire les tubes dans les trous, puis à solidariser, par brasage ou soudage, la paroi externe de ces tubes à la plaque collectrice, au niveau des empreintes poinçonnées formant lesdits trous.Once the collector plate has been produced, it only remains to introduce the tubes into the holes, then to join, by soldering or welding, the external wall of these tubes to the collector plate, at the punched imprints forming said holes.
L'invention ne se limite pas au mode de réalisation décrit ci-avant, mais en embrasse toutes les variantes que pourra développer l'homme de l'art dans le cadre des revendications ci-après.The invention is not limited to the embodiment described above, but embraces all the variants which a person skilled in the art may develop within the scope of the claims below.
Ainsi, le nombre de sous-emboutis (ou empreintes) d'un même embouti pourra être largement supérieur à deux, et la largeur des emboutis pourra être adaptée afin de permettre plus de cinq largeurs de trous différentes.Thus, the number of under-stamps (or footprints) of the same stamp can be much greater than two, and the width of the stamps can be adapted to allow more than five different widths of holes.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9603636 | 1996-03-22 | ||
FR9603636A FR2746493B1 (en) | 1996-03-22 | 1996-03-22 | MANIFOLD FOR A HEAT EXCHANGER, ESPECIALLY A MOTOR VEHICLE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0797066A1 true EP0797066A1 (en) | 1997-09-24 |
EP0797066B1 EP0797066B1 (en) | 2001-12-12 |
Family
ID=9490478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97103936A Expired - Lifetime EP0797066B1 (en) | 1996-03-22 | 1997-03-10 | Headerbox of heat exchanger, more particularly for automotive vehicles |
Country Status (8)
Country | Link |
---|---|
US (1) | US5873409A (en) |
EP (1) | EP0797066B1 (en) |
KR (1) | KR970066501A (en) |
AR (1) | AR006277A1 (en) |
BR (1) | BR9701337A (en) |
DE (1) | DE69708951T2 (en) |
FR (1) | FR2746493B1 (en) |
MX (1) | MX9702110A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6640887B2 (en) | 2000-12-20 | 2003-11-04 | Visteon Global Technologies, Inc. | Two piece heat exchanger manifold |
US6786275B2 (en) * | 2002-05-23 | 2004-09-07 | Valeo Engine Cooling | Heat exchanger header assembly |
DE10316756A1 (en) * | 2003-04-10 | 2004-10-28 | Behr Gmbh & Co. Kg | Heat exchangers, in particular intercoolers for motor vehicles |
DE10343239B4 (en) * | 2003-09-17 | 2021-09-09 | Mahle International Gmbh | Heat exchanger |
US8181694B2 (en) * | 2003-12-19 | 2012-05-22 | Valeo, Inc. | Collar rib for heat exchanger header tanks |
JP2006284107A (en) * | 2005-04-01 | 2006-10-19 | Denso Corp | Heat exchanger |
DE102007020948B3 (en) * | 2007-05-04 | 2008-11-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Radiator for a motor vehicle |
DE102014102974A1 (en) | 2014-03-06 | 2015-09-10 | Thyssenkrupp Steel Europe Ag | Method for customizing the shape of components |
US11480398B2 (en) * | 2015-05-22 | 2022-10-25 | The Johns Hopkins University | Combining complex flow manifold with three dimensional woven lattices as a thermal management unit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538526A1 (en) * | 1982-12-22 | 1984-06-29 | Chausson Usines Sa | COLLECTOR PLATE FOR TUBE AND WATER BOX HEAT EXCHANGER |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4234041A (en) * | 1978-11-15 | 1980-11-18 | Mccord Corporation | Radiator tank headsheet and method |
US4881594A (en) * | 1989-03-27 | 1989-11-21 | General Motors Corporation | Header plate for pressure vessels, heat exchangers and the like |
US5036913A (en) * | 1990-11-05 | 1991-08-06 | Valeo Engine Cooling, Incorporated | Vehicle radiator with tube to header joint formed of a composite weld and solder bond |
JPH0492174U (en) * | 1990-12-05 | 1992-08-11 | ||
FR2693545B1 (en) * | 1992-07-08 | 1994-09-30 | Valeo Thermique Moteur Sa | Heat exchanger with several rows of tubes, in particular for motor vehicles. |
-
1996
- 1996-03-22 FR FR9603636A patent/FR2746493B1/en not_active Expired - Lifetime
-
1997
- 1997-03-10 EP EP97103936A patent/EP0797066B1/en not_active Expired - Lifetime
- 1997-03-10 DE DE69708951T patent/DE69708951T2/en not_active Expired - Lifetime
- 1997-03-19 BR BR9701337A patent/BR9701337A/en active Search and Examination
- 1997-03-19 AR ARP970101081A patent/AR006277A1/en unknown
- 1997-03-19 US US08/820,119 patent/US5873409A/en not_active Expired - Lifetime
- 1997-03-20 MX MX9702110A patent/MX9702110A/en unknown
- 1997-03-21 KR KR1019970009677A patent/KR970066501A/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538526A1 (en) * | 1982-12-22 | 1984-06-29 | Chausson Usines Sa | COLLECTOR PLATE FOR TUBE AND WATER BOX HEAT EXCHANGER |
Also Published As
Publication number | Publication date |
---|---|
MX9702110A (en) | 1998-04-30 |
FR2746493A1 (en) | 1997-09-26 |
FR2746493B1 (en) | 1998-05-15 |
AR006277A1 (en) | 1999-08-11 |
DE69708951D1 (en) | 2002-01-24 |
US5873409A (en) | 1999-02-23 |
DE69708951T2 (en) | 2002-06-20 |
KR970066501A (en) | 1997-10-13 |
BR9701337A (en) | 1998-11-10 |
EP0797066B1 (en) | 2001-12-12 |
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