EP1285212B1 - Manifold block for brazed heat exchanger - Google Patents
Manifold block for brazed heat exchanger Download PDFInfo
- Publication number
- EP1285212B1 EP1285212B1 EP01938354A EP01938354A EP1285212B1 EP 1285212 B1 EP1285212 B1 EP 1285212B1 EP 01938354 A EP01938354 A EP 01938354A EP 01938354 A EP01938354 A EP 01938354A EP 1285212 B1 EP1285212 B1 EP 1285212B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- manifold block
- opening
- block according
- pipe
- tubing
- 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.)
- Expired - Lifetime
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Classifications
-
- 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
- F28F9/0246—Arrangements for connecting header boxes with flow lines
-
- 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
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0248—Arrangements for sealing connectors to header boxes
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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
- F28F2275/00—Fastening; Joining
- F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove
- F28F2275/146—Fastening; Joining by using form fitting connection, e.g. with tongue and groove with bayonet connections
Definitions
- the invention relates to heat exchangers, in particular for motor vehicle.
- It relates more particularly to a manifold for a brazed heat exchanger comprising walls which define a room, one of the walls of the room being provided with an opening, a tube being connected to this opening.
- the collecting plate also called a hole plate, has a multiplicity of holes in which the ends are received of tubes which constitute the bundle of the heat exchanger heat. These tubes are associated with fins contributing to increase the heat exchange surface.
- the plaque collector is formed by a wall which delimits a chamber communicating with the tubes to allow circulation of a heat transfer fluid in the bundle.
- One of the walls of the room is provided with at least one tubing to allow the inlet or outlet of the heat transfer fluid.
- Brazed heat exchangers include a bundle mounted between two manifolds.
- the beam is formed of a multiplicity of tubes arranged parallel to each other and alternating with dividers.
- These dividers are of wavy type, i.e. they are formed from a metal strip deformed to form corrugations.
- a spacer disposed between two adjacent tubes comes into respective contact of the two tubes by regions end of the corrugations.
- the heat exchanger further comprises two cheeks, also called crosspieces, which frame the beam and are arranged parallel to the tubes.
- the different parts are formed from a metallic material coated on the outside of a brazing alloy.
- the present invention aims to provide a box collector, and a heat exchanger comprising such a box, which allow quick and little temporary fixing expensive tubing in an opening in a wall of the manifold.
- the tubing has at least one lug and that the orifice has at least one notch allowing passage of the lug of the tubing. So, during soldering, the tubing can be temporarily held in the opening by the lug (s) after rotation of the tubing in the opening.
- Tubing is introduced manually or automatically in the opening, the lug (s) being placed in look at the corresponding notches on the periphery of the opening. Then the tubing is turned angularly from a certain angle so that the lug or lugs are no longer opposite the notches. So the tubing is temporarily maintained on the manifold stably during the passage of the exchanger in the furnace.
- the tubing comprises at least two lugs.
- the tubing has three pins arranged at 120 ° one of the other.
- the opening will then also include three notches arranged at 120 ° from each other.
- the number of notches is equal to the number of pins on the tubing, but this feature is not essential.
- the number of notches can also be a multiple of number of pins. We can imagine for example that the opening has six notches arranged at 60 ° from each other, this which would limit the required angle of rotation to introduce the pins in the notches.
- the tubing is bent and should extend into a given direction to be fitted with a conduit flexible. In this case, it is necessary to respect a precise angular orientation of the tubing relative to the manifold. If the tubing is mounted manually, the wall of the chamber which has the opening is preferably provided with a stop which limits the rotation of the tubing by cooperation with a lug.
- the manifold includes a first part 10 and a second part 12, each formed from a metal sheet, advantageously aluminum, which is shaped by conventional cutting operations and stamping.
- the first part 10 has a bottom 14 which is generally flat and elongated rectangular shape.
- This background 14 is intended to constitute the collecting plate, also called “hole plate”, from the manifold.
- This background features for this purpose a plurality of spaced holes 16 of shape elongated intended to receive tubes 18 forming part of the heat exchanger harness. In the example described, it these are flat tubes 18 between which are arranged fins 20 produced in the form of corrugated spacers.
- Part 10 further comprises two lateral flanks 22 folded opposite, and which are generally flat and parallel to each other. These flanks connect substantially perpendicular to the bottom 14 by two fold lines 24 which are parallel to each other.
- the lateral flanks 22 have extensions in their central part 26 and 28 respectively. Extension 26 has an opening 30 while the extension 28 is completely closed.
- the opening 30 is circular in shape and is intended for allow the adaptation of a tubing 32 of circular section.
- the second part 12 fits on the lateral flanks 22 in so that these two parts jointly delimit a volume closed which communicates with the tubes 18 of the bundle.
- a heat exchanger comprising a beam formed by a multiplicity of tubes and fins, at the same time as one or two manifolds.
- FIG. 2 shows a perspective view of the respective extensions 26 and 28 of the lateral flanks 22.
- the opening 30, formed in the extension 26 has notches 34, which are three in number the embodiment shown.
- the notches 34 are arranged at 120 ° from each other.
- the end of the tubing 32 which engages in the opening 30 has three pins 36, also arranged at 120 ° from each other. These pins form protrusions projecting outwardly from the tubing.
- the tubing 32 has a flange 40 which limits penetration of the tubing in the opening 30.
- the flange 40 is supported on the wall 26 of the manifold, we turn the tubing in one direction or the other of a certain angle, for example 10 or 20 ° (as shown by the arrow F2 in FIG. 4), so that the pins do not are more opposite the notches 34.
- the tubing is thus kept sufficiently firm on the box collector so that it is possible to carry out the operation soldering without moving.
- lugs 36 are shaped so that a slight tightening tubing on the wall 26 is obtained.
- the tubing 32 instead to be straight cylindrical as shown in the example, has an angled shape. In this case, it should be arranged in a precise angular orientation with respect to to the manifold in order to connect it to a pipe flexible fluid circulation circuit. If the tubing is introduced by a robot, the latter can be adjusted so as to give a suitable angular orientation and no further action is necessary. If the tubing is introduced manually by an operator, the wall 26 preferably include a boss 42 (FIGS. 3 and 4), obtained for example by punching, and forming a stop which limits the rotational movement of the tubing relative to the manifold. When one of the lugs 36 comes into stop against boss 42, suitable angle of rotation is obtained.
- the notches 34 have a low dimension so that it can be filled with the alloy of soldering during the soldering operation.
- FIGs 5 to 8 illustrate a variant of the heat exchanger heat according to the invention, in which means are designed to immobilize the tubing in the final position of its rotational movement, defined by the wall stopper, so as to avoid reversing this movement.
- Figures 7 and 8 for clarity, only a square shaped region of the wall, concentric to the opening is shown.
- the tubing 50 is bent and its end 52 which engages in the manifold here has a single lug 54, associated with a single notch 56 of the opening generally circular 58 through which the tubing passes.
- a stop 60 analogous to the stop 42 of Figures 3 and 4 is formed at the edge of the opening 58, at an angular distance from the notch 56, around the axis A of the opening, slightly greater than 90 ° so as to limit the rotation of the tubing to an angle of 90 ° counterclockwise, as seen from the inside of the manifold, according to arrow F of Figure 8.
- a ramp 62 is juxtaposed with the stop 60, at an angular distance of 90 ° relative to the notch 56.
- the ramp 62 like the stop 60, is produced by deformation, in the direction of axis A, of wall 64 of the manifold, in which the opening 58 is formed.
- tubing 50 has a width greater than the thickness of the wall 64, so that the tubing can rotate freely around axis A after the lug has been engaged through the notch 56.
- the lug After a rotation of an angle close to 90 °, the lug reaches opposite the ramp 62, which presents in opposite it a surface 70 inclined so as to gradually move away from the plane of the external face 72, facing the flange 68, from the wall 64, to a maximum distance very slightly greater than the width of the interval 66 so as to achieve an axial tightening of the wall 64 between the lug 54 and the flange 68, after a 90 ° rotation, while lug 54 comes to rest in the circumferential direction on the stop 60, which projects up to a distance from the wall 72 substantially greater at the width of the interval 66.
- a projection 74 similar to the stop 60 is produced by deformation of the wall 64, in a position slightly offset from notch 56 in the opposite direction of that of the rotational movement of the tubing. This projection cooperates with lug 54 to prevent movement of tubing rotated in the wrong direction when put in place manually.
- clamping means comprising the ramp 62 and the polarizing means comprising the projection 74, although incorporated here in the same embodiment, can be implemented independently of each other. In addition, both can be used in combination with a multiplicity of lugs as described in the first embodiment.
- the heat exchanger of the invention can be used in particular to constitute a radiator for cooling the cabin engine or radiator motor vehicle.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Description
L'invention se rapporte aux échangeurs de chaleur, notamment pour véhicule automobile.The invention relates to heat exchangers, in particular for motor vehicle.
Elle concerne plus particulièrement une boíte collectrice pour un échangeur de chaleur brasé comprenant des parois qui délimitent une chambre, l'une des parois de la chambre étant pourvue d'une ouverture, une tubulure étant raccordée à cette ouverture.It relates more particularly to a manifold for a brazed heat exchanger comprising walls which define a room, one of the walls of the room being provided with an opening, a tube being connected to this opening.
Dans une boíte collectrice de ce genre, la plaque collectrice, que l'on appelle aussi plaque à trous, possède une multiplicité de trous dans lesquels sont reçues les extrémités de tubes qui constituent le faisceau de l'échangeur de chaleur. À ces tubes sont associées des ailettes contribuant à augmenter la surface d'échange de chaleur. La plaque collectrice est formée par une paroi qui délimite une chambre communiquant avec les tubes pour permettre la circulation d'un fluide caloporteur dans le faisceau. L'une des parois de la chambre est munie d'au moins une tubulure pour permettre l'entrée ou la sortie du fluide caloporteur.In a collecting box of this kind, the collecting plate, also called a hole plate, has a multiplicity of holes in which the ends are received of tubes which constitute the bundle of the heat exchanger heat. These tubes are associated with fins contributing to increase the heat exchange surface. The plaque collector is formed by a wall which delimits a chamber communicating with the tubes to allow circulation of a heat transfer fluid in the bundle. One of the walls of the room is provided with at least one tubing to allow the inlet or outlet of the heat transfer fluid.
Les échangeurs de chaleur brasés comprennent un faisceau monté entre deux boítes collectrices. Le faisceau est formé d'une multiplicité de tubes disposés parallèlement entre eux et alternant avec des intercalaires. Ces intercalaires sont de type ondulé, c'est-à-dire qu'ils sont formés à partir d'un feuillard métallique déformé pour constituer des ondulations. Ainsi, un intercalaire disposé entre deux tubes adjacents vient au contact respectif des deux tubes par des régions d'extrémité des ondulations.Brazed heat exchangers include a bundle mounted between two manifolds. The beam is formed of a multiplicity of tubes arranged parallel to each other and alternating with dividers. These dividers are of wavy type, i.e. they are formed from a metal strip deformed to form corrugations. Thus, a spacer disposed between two adjacent tubes comes into respective contact of the two tubes by regions end of the corrugations.
Habituellement, l'échangeur de chaleur comprend en outre deux joues, encore appelées traverses, qui encadrent le faisceau et sont disposées parallèlement aux tubes. Les différentes pièces sont formées d'une matière métallique revêtue extérieurement d'un alliage de brasure.Usually the heat exchanger further comprises two cheeks, also called crosspieces, which frame the beam and are arranged parallel to the tubes. The different parts are formed from a metallic material coated on the outside of a brazing alloy.
Après assemblage, les différentes pièces de l'échangeur sont brasées par passage dans un four. Il est donc nécessaire de les maintenir temporairement en place afin qu'elles ne puissent pas se déplacer mutuellement durant leur passage dans le four avant d'avoir été solidarisées définitivement entre elles. En particulier, il est nécessaire que les tubulures ne se déplacent pas par rapport à la paroi de la chambre.After assembly, the different parts of the exchanger are brazed by passage through an oven. It is therefore necessary to temporarily keep them in place so they don't cannot move each other during their passage in the oven before being permanently secured between them. In particular, it is necessary that the tubing does not move relative to the wall of the bedroom.
Actuellement (voir par exemple US-A-4026456), la fixation provisoire des tubulures est obtenue en les sertissant sur la boíte collectrice. Une telle opération nécessite un outillage adapté et une reprise de la boíte. Elle est donc coûteuse à effectuer.Currently (see for example US-A-4026456), the provisional fixing of the pipes is obtained by crimping them on the manifold. Such a operation requires suitable tools and a recovery of the box. It is therefore expensive to perform.
La présente invention a pour but de proposer une boíte collectrice, et un échangeur de chaleur comportant une telle boíte, qui permettent une fixation provisoire rapide et peu coûteuse de la tubulure dans une ouverture d'une paroi de la boíte collectrice.The present invention aims to provide a box collector, and a heat exchanger comprising such a box, which allow quick and little temporary fixing expensive tubing in an opening in a wall of the manifold.
Ce résultat est obtenu conformément à l'invention par le fait que la tubulure comporte au moins un ergot et par le fait que l'orifice comporte au moins une encoche permettant le passage de l'ergot de la tubulure. De la sorte, pendant le brasage, la tubulure peut être maintenue provisoirement dans l'ouverture par l'ergot ou les ergots après rotation de la tubulure dans l'ouverture.This result is obtained in accordance with the invention by the fact that the tubing has at least one lug and that the orifice has at least one notch allowing passage of the lug of the tubing. So, during soldering, the tubing can be temporarily held in the opening by the lug (s) after rotation of the tubing in the opening.
La tubulure est introduite manuellement ou automatiquement dans l'ouverture, l'ergot ou les ergots étant placés en regard des encoches correspondantes pratiquées à la périphérie de l'ouverture. Puis la tubulure est tournée angulairement d'un certain angle de manière que l'ergot ou les ergots ne soient plus en regard des encoches. Ainsi la tubulure est maintenue de manière provisoire sur la boíte collectrice de façon stable pendant le passage de l'échangeur dans le four. Tubing is introduced manually or automatically in the opening, the lug (s) being placed in look at the corresponding notches on the periphery of the opening. Then the tubing is turned angularly from a certain angle so that the lug or lugs are no longer opposite the notches. So the tubing is temporarily maintained on the manifold stably during the passage of the exchanger in the furnace.
Avantageusement la tubulure comporte au moins deux ergots. De préférence, la tubulure comporte trois ergots disposés à 120° l'un de l'autre. L'ouverture comportera alors également trois encoches disposées à 120° l'une de l'autre. De préférence, le nombre des encoches est égal au nombre des ergots de la tubulure, mais cette caractéristique n'est pas indispensable. Le nombre d'encoches peut également être un multiple du nombre d'ergots. On peut imaginer par exemple que l'ouverture comporte six encoches disposées à 60° l'une de l'autre, ce qui permettrait de limiter l'angle de rotation nécessaire pour introduire les ergots dans les encoches.Advantageously, the tubing comprises at least two lugs. Of preferably, the tubing has three pins arranged at 120 ° one of the other. The opening will then also include three notches arranged at 120 ° from each other. Preferably, the number of notches is equal to the number of pins on the tubing, but this feature is not essential. The number of notches can also be a multiple of number of pins. We can imagine for example that the opening has six notches arranged at 60 ° from each other, this which would limit the required angle of rotation to introduce the pins in the notches.
Fréquemment, la tubulure est coudée et doit s'étendre dans une direction donnée pour être emmanchée avec un conduit souple. Dans ce cas, il est nécessaire de respecter une orientation angulaire précise de la tubulure par rapport à la boíte collectrice. Si la tubulure est montée manuellement, la paroi de la chambre qui comporte l'ouverture est de préférence pourvue d'une butée qui limite la rotation de la tubulure par coopération avec un ergot.Frequently, the tubing is bent and should extend into a given direction to be fitted with a conduit flexible. In this case, it is necessary to respect a precise angular orientation of the tubing relative to the manifold. If the tubing is mounted manually, the wall of the chamber which has the opening is preferably provided with a stop which limits the rotation of the tubing by cooperation with a lug.
D'autres caractéristiques optionnelles de l'invention sont énoncées ci-après:
- Des moyens sont prévus pour immobiliser la tubulure dans une position finale de son mouvement de rotation, par serrage dans la direction de son axe de rotation.
- Lesdits moyens d'immobilisation comprennent une rampe formée sur la face interne de ladite paroi de manière à coopérer avec un ergot, et une saillie radiale formée sur la tubulure en regard de la face externe de la paroi de manière à serrer progressivement la paroi munie de la rampe entre ladite saillie et l'ergot, à l'approche de ladite position finale.
- Ladite butée est disposée de manière à arrêter ledit mouvement de rotation dans ladite position finale.
- La face interne de la paroi présente une saillie juxtaposée à une encoche dans la direction circonférentielle de manière à coopérer avec un ergot ayant franchi cette encoche pour permettre un mouvement de rotation seulement dans un sens déterminé.
- Means are provided for immobilizing the tubing in a final position of its rotational movement, by clamping in the direction of its axis of rotation.
- Said immobilization means comprise a ramp formed on the internal face of said wall so as to cooperate with a lug, and a radial projection formed on the tubing opposite the external face of the wall so as to gradually tighten the wall provided with the ramp between said projection and the lug, when approaching said final position.
- Said stopper is arranged so as to stop said rotational movement in said final position.
- The internal face of the wall has a projection juxtaposed with a notch in the circumferential direction so as to cooperate with a lug having passed this notch to allow a rotational movement only in a determined direction.
D'autres caractéristiques et avantages de la présente invention apparaítront encore à la lecture de la description qui suit d'un exemple de réalisation donné à titre illustratif en référence aux figures annexées. Sur ces figures :
- la figure 1 est une vue partielle en perspective d'une boíte collectrice pour un échangeur de chaleur selon l'invention, comprenant une tubulure en cours d'assemblage ;
- la figure 2 est une autre vue partielle en perspective analogue à la figure 1 ;
- les figures 3 et 4 sont des vues agrandies analogues à la figure 2 montrant la tubulure respectivement avant et après assemblage ;
- la figure 5 est une vue en coupe longitudinale d'une tubulure, montrant également en coupe une partie de la paroi de la boíte collectrice dans l'ouverture de laquelle l'extrémité de la tubulure vient d'être introduite ;
- la figure 5a est un détail agrandi de la figure 5 ;
- la figure 6 est une vue analogue à la figure 5a, montrant la tubulure à la fin de son mouvement de rotation ;
- la figure 7 est une vue en perspective montrant la tubulure dans sa position finale et la partie adjacente de la paroi de la boíte collectrice ; et
- la figure 8 est une vue en élévation de la région de la paroi représentée sur les figures 5 à 7 comportant l'ouverture.
- Figure 1 is a partial perspective view of a manifold for a heat exchanger according to the invention, comprising a tube during assembly;
- Figure 2 is another partial perspective view similar to Figure 1;
- Figures 3 and 4 are enlarged views similar to Figure 2 showing the tubing respectively before and after assembly;
- Figure 5 is a longitudinal sectional view of a tube, also showing in section a portion of the wall of the manifold in the opening of which the end of the tube has just been introduced;
- Figure 5a is an enlarged detail of Figure 5;
- Figure 6 is a view similar to Figure 5a, showing the tubing at the end of its rotational movement;
- Figure 7 is a perspective view showing the tubing in its final position and the adjacent part of the wall of the manifold; and
- Figure 8 is an elevational view of the region of the wall shown in Figures 5 to 7 having the opening.
Sur la figure 1, la boíte collectrice comprend une première
partie 10 et une seconde partie 12, chacune formée à partir
d'une feuille métallique, avantageusement en aluminium, qui
est conformée par des opérations classiques de découpage et
d'emboutissage.In Figure 1, the manifold includes a
La première partie 10 comporte un fond 14 qui est généralement
plat et de forme rectangulaire allongée. Ce fond 14 est
destiné à constituer la plaque collectrice, encore appelée
"plaque à trous", de la boíte collectrice. Ce fond comporte
à cette effet une pluralité de trous espacés 16 de forme
allongée destinés à recevoir des tubes 18 faisant partie du
faisceau de l'échangeur de chaleur. Dans l'exemple décrit, il
s'agit de tubes plats 18 entre lesquels sont disposées des
ailettes 20 réalisées sous la forme d'intercalaires ondulés.The
La partie 10 comprend en outre deux flancs latéraux 22
repliés en vis à vis, et qui sont généralement plans et
parallèles entre eux. Ces flancs se raccordent sensiblement
perpendiculairement au fond 14 par deux lignes de pliage 24
qui sont parallèles entre elles. Les flancs latéraux 22
comportent dans leur partie centrale des prolongements
respectifs 26 et 28. Le prolongement 26 comporte une ouverture
30 tandis que le prolongement 28 est complètement fermé.
L'ouverture 30 est de forme circulaire et est destinée à
permettre l'adaptation d'une tubulure 32 de section circulaire.
La seconde partie 12 s'adapte sur les flancs latéraux 22 en
sorte que ces deux parties délimitent conjointement un volume
fermé qui communique avec les tubes 18 du faisceau. On
comprendra qu'il est possible ainsi de réaliser en une seule
opération de brasage un échangeur de chaleur comprenant un
faisceau formé par une multiplicité de tubes et d'ailettes,
en même temps qu'une ou deux boítes collectrices.The
On a représenté sur la figure 2 une vue en perspective des
prolongements respectifs 26 et 28 des flancs latéraux 22. On
constate que l'ouverture 30, formée dans le prolongement 26,
comporte des encoches 34, qui sont au nombre de trois dans
l'exemple de réalisation représenté. Les encoches 34 sont
disposées à 120° l'une de l'autre. L'extrémité de la tubulure
32 qui s'engage dans l'ouverture 30 comporte trois ergots 36,
eux aussi disposés à 120° l'un de l'autre. Ces ergots forment
des protubérances en saillie vers l'extérieur de la tubulure.FIG. 2 shows a perspective view of the
Lorsque les ergots 36 sont en regard des encoches 34, on peut
introduire l'extrémité de la tubulure dans l'ouverture 30
comme représenté par la flèche F1 sur la figure 3. La
tubulure 32 comporte une collerette 40 qui limite la pénétration
de la tubulure dans l'ouverture 30. Lorsque la collerette
40 est en appui sur la paroi 26 de la boíte collectrice,
on tourne la tubulure dans un sens ou dans l'autre d'un
certain angle, par exemple 10 ou 20° (comme montré par la
flèche F2 sur la figure 4), de telle sorte que les ergots ne
se trouvent plus en regard des encoches 34. La tubulure est
ainsi maintenue de manière suffisamment ferme sur la boíte
collectrice pour qu'il soit possible d'effectuer l'opération
de brasage sans qu'elle se déplace. En particulier, les
ergots 36 sont conformés de telle manière qu'un léger serrage
de la tubulure sur la paroi 26 soit obtenu.When the
Toutefois, il arrive fréquemment que la tubulure 32, au lieu
d'être cylindrique droite comme représenté dans l'exemple,
présente une forme coudée. Dans ce cas, elle devra être
disposée selon une orientation angulaire précise par rapport
à la boíte collectrice afin de la raccorder à une conduite
souple du circuit de circulation du fluide. Si la tubulure
est introduite par un robot, ce dernier peut être réglé de
manière à donner une orientation angulaire convenable et
aucune mesure supplémentaire n'est nécessaire. Si la tubulure
est introduite manuellement par un opérateur, la paroi 26
comportera de préférence un bossage 42 (figures 3 et 4),
obtenu par exemple par poinçonnage, et formant une butée qui
limite le mouvement de rotation de la tubulure par rapport à
la boíte collectrice. Lorsque l'un des ergots 36 vient en
butée contre le bossage 42, l'angle de rotation convenable
est obtenu. However, it often happens that the
Il est important que les encoches 34 aient une faible
dimension de manière à pouvoir être comblées par l'alliage de
brasage lors de l'opération de brasage.It is important that the
Les figures 5 à 8 illustrent une variante de l'échangeur de chaleur selon l'invention, dans laquelle des moyens sont prévus pour immobiliser par serrage la tubulure dans la position finale de son mouvement de rotation, définie par la butée de la paroi, de manière à éviter une inversion de ce mouvement. Sur les figures 7 et 8, pour plus de clarté, seule une région de forme carrée de la paroi, concentrique à l'ouverture, est représentée.Figures 5 to 8 illustrate a variant of the heat exchanger heat according to the invention, in which means are designed to immobilize the tubing in the final position of its rotational movement, defined by the wall stopper, so as to avoid reversing this movement. In Figures 7 and 8, for clarity, only a square shaped region of the wall, concentric to the opening is shown.
La tubulure 50 est coudée et son extrémité 52 qui s'engage
dans la boíte collectrice présente ici un ergot unique 54,
associé à une encoche unique 56 de l'ouverture généralement
circulaire 58 traversée par la tubulure. Une butée 60
analogue à la butée 42 des figures 3 et 4 est formée au bord
de l'ouverture 58, à une distance angulaire de l'encoche 56,
autour de l'axe A de l'ouverture, légèrement supérieur à 90°
de manière à limiter la rotation de la tubulure à un angle de
90° dans le sens inverse des aiguilles d'une montre, comme vu
de l'intérieur de la boíte collectrice, selon la flèche F de
la figure 8. En outre, une rampe 62 est juxtaposée à la butée
60, à une distance angulaire de 90° par rapport à l'encoche
56. La rampe 62, comme la butée 60, est réalisée par déformation,
dans la direction de l'axe A, de la paroi 64 de la
boíte collectrice, dans laquelle est ménagée l'ouverture 58.The
On voit sur la figure 5, et mieux encore sur la figure 5a,
que l'intervalle 66 qui sépare axialement l'ergot 54 de la
collerette 68, analogue à la collerette 40 des figures 1 à 4,
de la tubulure 50 a une largeur supérieure à l'épaisseur de
la paroi 64, de sorte que la tubulure peut tourner librement
autour de l'axe A après que l'ergot a été engagé à travers
l'encoche 56. Après une rotation d'un angle voisin de 90°,
l'ergot parvient en regard de la rampe 62, qui présente en
vis-à-vis de celui-ci une surface 70 inclinée de manière à
s'éloigner progressivement du plan de la face externe 72,
tournée vers la collerette 68, de la paroi 64, jusqu'à une
distance maximale très légèrement supérieure à la largeur de
l'intervalle 66 de manière à réaliser un serrage axial de la
paroi 64 entre l'ergot 54 et la collerette 68, après une
rotation de 90°, tandis que l'ergot 54 vient en appui dans la
direction circonférentielle sur la butée 60, qui fait saillie
jusqu'à une distance de la paroi 72 sensiblement supérieure
à la largeur de l'intervalle 66. La poursuite du mouvement de
rotation est ainsi empêchée par la butée 60, tandis qu'un
mouvement en sens inverse est interdit par le serrage axial
de la rampe 62, lequel évite également un défaut de perpendicularité
entre l'axe de la tubulure et le plan de la paroi
72.We see in Figure 5, and better still in Figure 5a,
that the
Une saillie 74 semblable à la butée 60 est réalisée par
déformation de la paroi 64, en une position légèrement
décalée par rapport à l'encoche 56 dans le sens inverse de
celui du mouvement de rotation de la tubulure. Cette saillie
coopère avec l'ergot 54 pour empêcher un mouvement de
rotation de la tubulure dans le mauvais sens lors de sa mise
en place manuelle.A
Il est bien entendu que les moyens de serrage comprenant la
rampe 62 et les moyens de détrompage comprenant la saillie
74, bien qu'incorporés ici dans un même mode de réalisation,
peuvent être mis en oeuvre indépendamment les uns des autres.
En outre, les uns et/ou les autres peuvent être utilisés en
combinaison avec une multiplicité d'ergots telle que décrite
dans le premier mode de réalisation.It is understood that the clamping means comprising the
L'échangeur de chaleur de l'invention peut être utilisé notamment pour constituer un radiateur de refroidissement du moteur ou un radiateur de chauffage de l'habitacle d'un véhicule automobile.The heat exchanger of the invention can be used in particular to constitute a radiator for cooling the cabin engine or radiator motor vehicle.
Claims (11)
- Manifold block for a brazed heat exchanger comprising walls (12, 14, 22) which delimit a chamber (1), one of the walls (22) of the chamber having an opening (30), a pipe (32) being connected to the opening (30), characterized in that the pipe (32) has at least one peg (36), and in that the opening (30) has at least one notch (34) for the passage of the peg (36) so that during brazing the pipe can be held temporarily in the opening by the peg or the pegs after the pipe has been rotated in the opening.
- Manifold block according to Claim 1, characterized in that the number of notches (34) is equal to the number of pegs (36).
- Manifold block according to Claim 1, characterized in that the number of notches (34) is a multiple of the number of pegs (36).
- Manifold block according to one of the preceding claims, characterized in that the pipe (32) has at least two pegs (36).
- Manifold block according to one of the preceding claims, characterized in that the pipe (32) has three pegs (36) arranged 120° apart.
- Manifold block according to one of the preceding claims, characterized in that the wall of the chamber which has the opening (30) is provided with a stop (42) which limits the rotation of the pipe (32) by collaborating with a peg (36).
- Manifold block according to one of the preceding claims, characterized in that means (62) are provided for immobilizing the pipe in a final position of its rotational movement, by clamping in the direction of its axis of rotation (A).
- Manifold block according to Claim 7, characterized in that the said immobilizing means comprise a ramp (62) formed on the internal face of the said wall (64) so as to collaborate with a peg (54), and a radial projection (68) formed on the pipe facing the external face (72) of the wall so as to gradually clamp the wall equipped with the ramp between the said projection and the peg, as the said final position is neared.
- Manifold block according to Claim 8 attached to Claim 6, characterized in that the said stop (60) is arranged in such a way as to stop the said rotational movement in the said final position.
- Manifold block according to one of the preceding claims, characterized in that the internal face of the wall has a projection (74) next to a notch (56) in the circumferential direction so as to collaborate with a peg which has negotiated this notch in order to allow a rotational movement in just one given direction.
- Heat exchanger characterized in that it comprises at least one manifold block according to one of the preceding claims.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0006843A FR2809485B1 (en) | 2000-05-29 | 2000-05-29 | COLLECTOR BOX FOR A BRAZED HEAT EXCHANGER AND EXCHANGER COMPRISING SUCH A BOX |
FR0006843 | 2000-05-29 | ||
PCT/FR2001/001639 WO2001092807A1 (en) | 2000-05-29 | 2001-05-28 | Manifold block for brazed heat exchanger |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1285212A1 EP1285212A1 (en) | 2003-02-26 |
EP1285212B1 true EP1285212B1 (en) | 2003-09-24 |
EP1285212B2 EP1285212B2 (en) | 2010-08-04 |
Family
ID=32044412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01938354A Expired - Lifetime EP1285212B2 (en) | 2000-05-29 | 2001-05-28 | Manifold block for brazed heat exchanger |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1285212B2 (en) |
JP (1) | JP4718752B2 (en) |
DE (1) | DE60100862T3 (en) |
WO (1) | WO2001092807A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1650522A2 (en) | 2004-08-25 | 2006-04-26 | Behr GmbH & Co. KG | container, in particular header of a heat exchanger |
US7380327B2 (en) | 2005-01-20 | 2008-06-03 | Calsonickansei North America, Inc. | Tube interface and method of securing a first tube to a second tube |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4689065B2 (en) * | 2001-03-26 | 2011-05-25 | カルソニックカンセイ株式会社 | Temporary fixing structure of tube |
GB2380965A (en) * | 2001-10-16 | 2003-04-23 | Llanelli Radiators Ltd | Automotive heat exchanger having fluid connection piece |
EP1869950A4 (en) * | 2005-03-15 | 2009-08-12 | Cath Inc E | System and method for attaching a substantially three dimensional structure to a substantially two dimensional structure |
FR2892803B1 (en) * | 2005-10-28 | 2008-04-04 | Valeo Systemes Thermiques | COLLECTOR BOX FOR HEAT EXCHANGER, IN PARTICULAR FOR AIR CONDITIONING EVAPORATOR, EXCHANGER COMPRISING SUCH A BOX |
FR3081205B1 (en) * | 2018-05-16 | 2021-10-22 | Coutier Moulage Gen Ind | REMOTE CLIP CONNECTOR |
GB2575106B (en) | 2018-06-29 | 2020-09-02 | Airbus Operations Ltd | A duct stringer |
EP3757501B1 (en) * | 2019-06-26 | 2023-03-15 | Valeo Autosystemy SP. Z.O.O. | A tank assembly for a heat exchanger |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4379574A (en) * | 1980-12-22 | 1983-04-12 | Ex-Cell-O Corporation | Radiator assembly (bayonet lock) |
JPS6076790A (en) * | 1983-10-03 | 1985-05-01 | 日本電信電話株式会社 | Memory |
JPS62185383A (en) * | 1986-02-12 | 1987-08-13 | Toshiba Corp | Cryogenic vessel |
JPS63169497A (en) † | 1986-12-29 | 1988-07-13 | Showa Alum Corp | Heat exchanger |
JPS6488186A (en) * | 1987-09-30 | 1989-04-03 | Nippon Nuclear Fuel Dev | Structure for holding fuel element of nuclear fuel assembly |
FR2626660B1 (en) * | 1988-02-02 | 1990-07-06 | Hutchinson Sa | ASSEMBLY DEVICE FOR A HEAT EXCHANGER / TUBULAR CONNECTION ASSEMBLY |
JPH02109169A (en) * | 1988-10-18 | 1990-04-20 | Matsushita Electric Ind Co Ltd | Retrieving processor |
US5205354A (en) † | 1992-01-28 | 1993-04-27 | Lesage Philip G | Vehicle radiator and method of making |
JPH07174479A (en) * | 1993-12-17 | 1995-07-14 | Nippondenso Co Ltd | Pipe fixing structure and heat exchanger using this fixing structure |
JPH07318289A (en) * | 1994-05-23 | 1995-12-08 | Nippondenso Co Ltd | Heat exchanger |
JP3774024B2 (en) * | 1997-04-04 | 2006-05-10 | カルソニックカンセイ株式会社 | Connection between heat exchanger header and fluid transfer pipe |
FR2766913B1 (en) * | 1997-07-30 | 1999-09-24 | Valeo Thermique Moteur Sa | TUBE FOR A MANIFOLD BOX, IN PARTICULAR FOR A HEAT EXCHANGER OF A MOTOR VEHICLE HEATING AND/OR AIR CONDITIONING VENTILATION SYSTEM, AND METHOD FOR ATTACHING THIS TUBE |
JPH11337292A (en) † | 1998-05-27 | 1999-12-10 | Zexel:Kk | Heat exchanger |
JP2000202523A (en) * | 1999-01-07 | 2000-07-25 | Sanden Corp | Structure and method for temporarily fixing pipe during brazing |
-
2001
- 2001-05-28 JP JP2002500175A patent/JP4718752B2/en not_active Expired - Lifetime
- 2001-05-28 EP EP01938354A patent/EP1285212B2/en not_active Expired - Lifetime
- 2001-05-28 DE DE60100862T patent/DE60100862T3/en not_active Expired - Lifetime
- 2001-05-28 WO PCT/FR2001/001639 patent/WO2001092807A1/en active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1650522A2 (en) | 2004-08-25 | 2006-04-26 | Behr GmbH & Co. KG | container, in particular header of a heat exchanger |
EP1650522A3 (en) * | 2004-08-25 | 2010-05-26 | Behr GmbH & Co. KG | container, in particular header of a heat exchanger |
US7380327B2 (en) | 2005-01-20 | 2008-06-03 | Calsonickansei North America, Inc. | Tube interface and method of securing a first tube to a second tube |
US7959189B2 (en) | 2005-01-20 | 2011-06-14 | Calsonickansei North America, Inc. | Tube interface and method of securing a first tube to a second tube |
Also Published As
Publication number | Publication date |
---|---|
JP4718752B2 (en) | 2011-07-06 |
DE60100862T3 (en) | 2011-03-17 |
DE60100862T2 (en) | 2004-07-15 |
EP1285212B2 (en) | 2010-08-04 |
DE60100862D1 (en) | 2003-10-30 |
EP1285212A1 (en) | 2003-02-26 |
WO2001092807A1 (en) | 2001-12-06 |
JP2003535304A (en) | 2003-11-25 |
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