EP3071916A1 - Manifold for a heat exchanger - Google Patents
Manifold for a heat exchangerInfo
- Publication number
- EP3071916A1 EP3071916A1 EP14799115.2A EP14799115A EP3071916A1 EP 3071916 A1 EP3071916 A1 EP 3071916A1 EP 14799115 A EP14799115 A EP 14799115A EP 3071916 A1 EP3071916 A1 EP 3071916A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubular wall
- collector
- slot
- partition
- wall
- 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.)
- Withdrawn
Links
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
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
- F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
- F28F2275/045—Fastening; Joining by brazing with particular processing steps, e.g. by allowing displacement of parts during brazing or by using a reservoir for storing brazing material
Definitions
- the invention relates to a collector for heat exchanger and a heat exchanger comprising such a collector.
- Condensers with collector separating partitions are particularly known. These partitions are inserted by one end of the collector and crimped on the latter, in particular by deformation of the wall of the collector, which ensures a temporary retention of the partition on the collector before soldering and ensures a tight connection of the partition on the wall of the collector after brazing.
- the collectors are also provided with tube through holes, said orifices being provided with flanges projecting towards the inside of the collector.
- the use of internal partitions thus requires a complex succession of stages of collars puncturing and assembly of the partitions to the wall of the collector resulting in additional manufacturing cost, especially when using internal dies for the realization of collars .
- collector separator walls said external, which are inserted into the cutouts of the wall of the collector.
- These partitions make it possible to produce tube passage collars in the manifold by virtue of said internal matrices prior to assembling the partitions to the wall of the collector, which simplifies manufacture.
- These partitions can be maintained in position before assembly, see KR 20120076754 and KR20120120593, this by insertion into force of the partitions on the wall of the collector, in particular through extra thickness of their periphery engaged on the wall of the collector.
- These partitions impose very small differences in size between the partitions and the walls of the collectors for sealing after soldering.
- Collectors do not are not always calibrated to a precise geometry, which impedes the assembly and entails risks on the tightness, even after soldering.
- the invention aims to overcome all or part of these disadvantages and proposes a collector for heat exchanger, in particular for a motor vehicle, said collector comprising a tubular wall and at least one separating wall partitioning the collector, said tubular wall comprising at least one slot formed on a portion of its section and adapted to allow insertion of said partition wall, the partition wall having an inner portion inserted into the tubular wall, said inner portion having a periphery provided with a first portion, in particular located in with respect to the slot, and a second portion located opposite the tubular wall, said second portion being adjacent to at least one deformation of the tubular wall such that an inner section of the tubular wall corresponds to around the partition along said second portion.
- the wall of the collector is calibrated or recalibrated by said deformation and establishes a continuous contact with the periphery of said second portion, during the pre-assembly of the collector, so that no space remains between said second portion and the tubular wall.
- the subsequent assembly of the heat exchanger, particularly by soldering, of this second portion to the tubular collector wall is thus made perfectly tight. In other words, it prevents any passage of fluid, not only to the outside, but also on both sides of the partition.
- said tubular wall is cylindrical, in particular with a diameter of less than 15 mm, preferably less than or equal to 12 mm; it is in particular at this level of dimensions that the formation of collars in the collector causes deformations of the section of the tubes that the invention, thanks to the phenomenon of recalibration of said tubular wall, compensates,
- said first portion extends over the length of the slot and the second portion extends over a complementary part of the first portion on the periphery of the tubular wall;
- said second portion is shaped in an arc of a circle, preferably in a radius equivalent to an internal radius of the tubular wall; the slot extends over an angular section of the angular wall, preferably along a section close to a diametrical section of the tubular wall,
- the width of said slot is slightly greater than that of the separating partition, from about 0.05 to 015 mm, so that the subsequent assembly of the separating partition to the tubular wall, at the level of the slot, during brazing of the corresponding heat exchanger makes it possible to ensure a satisfactory level of sealing,
- said deformation of the tubular wall comprises two annular rings bordering said second portion,
- said separating partition comprises two opposite shoulders, each capable of being applied to an end edge of the slot,
- said first portion of the partition wall is shaped so as to be flush with the periphery of the tubular wall at said slot
- said first portion of the partition wall comprises a portion projecting from the tubular wall, at the level of said slot,
- said projecting part comprises a transverse plate, in particular perpendicular to a median plane of the slot, said plate making it possible to favor a positioning in support of the partition on the tubular wall;
- said projecting portion comprises two opposite rectilinear edges, on either side of the plate, in particular parallel to said median plane of the slot, these rectilinear edges allowing in particular a guiding and / or angular holding of the separating partition on the tubular wall; ,
- said separating partition is locked integrally with the tubular wall, in particular clamped against said slot,
- said partition and / or the tubular wall comprises a local deformation at the level of the slot, in particular able to clamp the partition in the slot and to hold it solidly to the tubular wall of the collector,
- said local deformation is an annular extra-thickness, for example in the form of a ring, of the partition and extends angularly over the length of the slot, said slot is cut to dimensions smaller than the diameter of the tubular wall, so that , the separating partition being mounted in force in the slot, it is retained stuck to the tubular wall, said slot and / or separating partition is provided with two opposite notches, for example substantially diametrical, and said lateral wall comprises stampings penetrating into said notches.
- the invention also relates to a heat exchanger, in particular for cooling batteries, comprising at least one collector as described above.
- Said collector may comprise a plurality of tube through holes of the exchanger, said orifices being flanked by connection collars to the tubes.
- Said collars may have a longitudinal configuration parallel to the axis of the collector.
- the invention also relates to a method for pre-assembling a tubular manifold wall, for heat exchanger, in particular for a motor vehicle, and a separating partition partitioning the manifold said tubular wall comprising at least one slot formed on a portion of its section and adapted to allow insertion of said separating partition, the partition wall having an inner portion adapted to be inserted into the tubular wall, through the slot, said inner portion having a periphery provided with a first portion, in particular for facing the slot, and a second portion intended to come opposite the tubular wall, the method comprising the following steps:
- said matrix may comprise two parallel circular ribs, configured for the deformation of the tubular wall according to two annular rings bordering said second portion.
- the assembly of the tubular wall and of the separating partition is carried out on a press template, the separating partition being introduced into the slot and the tubular wall being held opposite by a matrix of the template,
- the separating partition and the tubular wall are configured so that at the end of the implementation of the template, said separating partition is locked to the tubular wall.
- the separating wall is force-fitted into the slot by the template, and it is retained wedged radially to the tubular wall at the end of the implementation. of the template.
- said separating partition being provided with two opposite notches, for example substantially diametrical, the separating partition is mounted in the slot by the template and at the end of the implementation of the template, it is retained wedged radially to the tubular wall by stampings formed in said tubular wall, engaged in the notches.
- said separating partition is flush with the outer periphery of the tubular wall by its first portion.
- Said template may then comprise a punch portion provided with a rib, or even tips, adapted to be applied against said first portion, so that at the implementation of the template the first portion is deformed and wedged and / or tightened against the slot and that the partition is locked to the tubular wall.
- FIG. 1 is a partial perspective view illustrating a collector according to the invention during pre-assembly
- FIG. 2 is a view in partial axial section of the collector of FIG. 1 pre-assembled
- FIG. 3 is a partial elevational view of the collector of FIG. 1 pre-assembled
- FIG. 4 is a cross-sectional view of the collector of FIG. 1, during assembly,
- FIG. 5 is a sectional view of the collector of FIG. 4 pre-assembled
- FIG. 6 is a cross-sectional view of a collector according to an alternative embodiment of the invention being assembled
- FIG. 7 is a sectional view of the collector of FIG. 6 pre-assembled, and - Figure 8 shows a battery heat exchanger according to the invention.
- the invention relates to a manifold 1 of a heat exchanger 3, in particular for a motor vehicle battery.
- the collector 1 comprises a tubular wall 5 and one or more separating partitions 7 for directing a circulation of a heat exchange fluid 9, here in several passes, within the heat exchanger.
- Said tubular wall is obtained, for example, by folding and welding, along a line parallel to the longitudinal axis of the collector, a flank of material.
- the separating partition 7 is of the so-called external type, that is to say that it is configured to be introduced inside the manifold, this through a slot January 1, formed on an angular portion, in particular substantially diametrical, of the tubular wall.
- the slot 1 1 is thus able to accommodate said partition wall 7 to partition the collector 1.
- This slot 1 1 is here orthogonally formed to the tubular wall 5, but it could still be inclined relative to a plane transverse to the tubular wall.
- the tubular wall 5 is cylindrical, in particular with a diameter of less than 15 mm, preferably less than or equal to 12 mm.
- This wall is further provided with tube through holes 15 of the heat exchanger.
- Said passage orifices are lined with collars 13 for connection to said tubes 15.
- the collars 13 are here oblong, of longitudinal extension parallel to the longitudinal axis of the tubular wall. At this level of relatively small dimensions of the collector, the formation of the collars 13 deforms the tubular wall whose contour, between two adjacent collars, significantly away from a circular shape.
- the collector 1 is shown in FIG. 1 during pre-assembly on a press jig 17.
- the tubular wall 5 and the separating partition 7 are arranged between press members 19 of the jig to be pushed towards each other according to the arrows 20.
- the press member facing the partition 7 is a pusher 19a, while the opposite press member is a matrix 19b.
- the partition wall 7 is flat in the general shape of a disc. It comprises an inner part 21 intended to be inserted into the tubular wall 5, said inner part 21 having a periphery provided with a first portion 21 has vis-à-vis the slot 1 1 and a second complementary portion 21 b vis-à-vis the tubular wall 5.
- first portion 21a and the second portion 21b extend continuously from one another over the entire periphery of the tubular wall 5.
- the first portion 21a comprises an upper arcuate face 23 provided for flush with the periphery of the tubular wall 5, after pre-assembly.
- This face 23 constitutes a bearing surface vis-à-vis the push member 19a of the template.
- the first portion 21a comprises in particular two opposing shoulders 25, each capable of being applied to an end edge 27 of the slot 11.
- the second portion 21b is disposed against the tubular wall 5, which is applied by its outer face against the matrix 19b to the opposite.
- the pre-assembled collector 1 is such that said second portion 21b is adjacent to at least one deformation 31 of the tubular wall 5 such as an internal section of the tubular wall 5 along said second portion 21b correspond to the periphery of said second portion 21 b.
- the tubular wall 5 whose inner circumference is affected by the prior embodiment of said flanges 13 is dimensionally calibrated or recalibrated by said deformation 31 to follow the periphery of said second portion 21 b.
- the subsequent assembly, by brazing, of the exchanger 3 comprising the pre-assembled collector is then made perfectly tight, in particular on this second portion 21b, because the intimacy of contact between the parts has been reinforced.
- Said second portion 21 b is here shaped with a periphery in an arc of radius r equivalent to that of the tubular wall 5, in particular such as it was before the formation of said collars13, so that the deformation 31 recalibrates the tubular wall 5 to its original radius.
- the width of the slot 1 1, greater than that of the partition wall 7 of about 0.05 to 0.15 mm, as indicated above, allows that, during the assembly of the exchanger 3 , the subsequent soldering of the separating partition 7 to the tubular wall 5, more precisely of the first portion 21a at the level of the slot 1 1, is made with a sealing level equivalent to that of the second portion 21 b vis-à-vis the tubular wall 5.
- said second portion 21b is bordered by two annular rings 33 corresponding to said deformation 31 of the tubular wall.
- This deformation 31 results from the fact that the matrix 19b may comprise, as here, two parallel circular ribs 35, able to deform the tubular wall 5 according to the two annular rings 33.
- Said rods 33 are located here on either side of the second portion 21 b.
- the punch 19a is here provided on its periphery with a median rib 29 adapted to be applied against said bearing face 23, so that when the template is fitted, the bearing face 23 is deformed. by the rib 29 to be applied against the slot 1 1.
- This deformation may be small since the width of said slot 1 1 is only slightly greater than that of the partition wall 7, about 0.05 to 0.15 mm. .
- the deformation is local, especially annular, for example rod-shaped, and extends vis-à-vis the slot 1 1, along the length of the latter.
- the partition 7 is wedged and / or tightened against the slot 1 1 so as to lock the partition 7 to the tubular wall 5
- the collector obtained can then be handled without risk that the partition comes out of the tubular wall through said slot, in particular until its subsequent assembly on the exchanger. Such a result can also be obtained in a different way.
- the slot 11 may be cut to dimensions smaller than the external diameter d, preferably a little smaller than the diameter d, as illustrated in FIG. 4, so that the separating partition 7 can be force-fitted into the slot 1 1, as shown in Figure 5.
- This partition 7 is then retained stuck at the end of the pre-assembly of the partition 7 to the tubular wall 5. It is therefore no longer necessary to deform the first portion 21 has the punch 19a as in the above example, for securing the partition 7 to the tubular wall 5.
- said partition wall 7 is provided with two notches 37 opposite, substantially diametrical, so that the partition wall 7 being mounted in the slot 1 1, Figure 7, it is retained stuck to the wall tubular 5 by bosses formed on the tubular wall 5, engaged in the notches 37.
- the partition wall 7 can be further shaped to project from the tubular wall 5, in particular by the first portion 21a protruding at the slot 1 1, as shown in broken lines in FIGS. 6 and 7. .
- the projecting portion 21a here comprises a flat 39 perpendicular to a median plane P of the slot 1 1 and two straight edges 41 opposite, on either side of the plate 39, parallel to said median plane P of the slot.
- the plate 39 constitutes a bearing surface for the pusher 19a of the template.
- the rectilinear edges 41 allow in particular an angular guidance and / or maintenance of the separating partition 7 during the implementation of the template 17, in particular during the press movement of the template, with a view to said deformation of the tubular wall 5. in particular make it possible to ensure that the partition is on the tubular wall by each of the shoulders 25.
- the pre-assembly method of the collector according to the invention comprises the following steps:
- the second portion 21b then applies against the tubular wall 5, which is deformed so that its inner section or periphery corresponds to the periphery of said second portion 21b.
- the tube is recalibrated and said separating partition 7 is locked to the tubular wall 5, being retained wedged or clamped to the tubular wall 5.
- This locking can be ensured by wedging the partition 7 on the slot 1 1, by deformation of the bearing face 23 vis-à-vis the slot 1 1 or jamming of the periphery of the partition 7 on the periphery of the tubular wall 5 or by a socket on notches 37 of the partition on the tubular wall, as mentioned above.
- the assembly of the heat exchanger 3 comprising the pre-assembled collector 1, illustrated in FIG. 8, is advantageously carried out by a soldering operation, consisting in particular of heating the exchanger parts, assembled, at a temperature above the melting temperature of a filler metal, the fixing of the parts being carried out by capillary diffusion, on the surface of the parts, said filler metal.
- the invention provides an external partition manifold for heat exchanger, especially for a motor vehicle, simple to assemble and high level of sealing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a manifold (1) for a heat exchanger (3), in particular for a motor vehicle, said manifold (1) comprising a tubular wall (5) and at least one separating partition (7) partitioning the manifold (1), said tubular wall (5) comprising at least one slot (11) formed over a portion of its cross section and able to allow an insertion of said separating partition (7), the separating partition (7) comprising an internal part (21) inserted into the tubular wall (5), said internal part (21) having a periphery provided with a first portion (21a) and with a second portion (21b), situated facing the tubular wall (5), said second portion (21b) being adjacent to at least one deformation of the tubular wall such that an internal cross section of the tubular wall (5) corresponds to the perimeter of the partition along the second portion (21b).
Description
COLLECTEUR POUR ECHANGEUR DE CHALEUR COLLECTOR FOR HEAT EXCHANGER
L'invention concerne un collecteur pour échangeur de chaleur ainsi qu'un échangeur de chaleur comprenant un tel collecteur. The invention relates to a collector for heat exchanger and a heat exchanger comprising such a collector.
Elle trouvera ses applications dans le domaine des véhicules automobiles en particulier sous la forme de refroidisseurs de batteries ou encore d'échangeurs de chaleur, tels que, condenseurs et/ou évaporateurs de circuits de climatisation. Cependant, d'autres applications de l'invention sont également envisageables. It will find its applications in the field of motor vehicles in particular in the form of battery coolers or heat exchangers, such as condensers and / or evaporators of air conditioning circuits. However, other applications of the invention are also conceivable.
Il est connu de réaliser des échangeurs thermiques présentant plusieurs passes de circulation du fluide parcourant l'échangeur et de diviser à cet effet les collecteurs des échangeurs thermiques par des cloisons séparatrices. It is known to produce heat exchangers having several passes of fluid circulation through the exchanger and divide for this purpose the collectors of the heat exchangers by separating partitions.
On connaît en particulier des condenseurs munis de cloisons séparatrices de collecteur, dites internes. Ces cloisons sont insérées par une extrémité du collecteur et serties sur ce dernier, en particulier par déformation de la paroi du collecteur, ce qui assure un maintien provisoire de la cloison sur le collecteur avant brasage et permet de garantir une liaison étanche de la cloison sur la paroi du collecteur après brasage. Condensers with collector separating partitions, known as internal ones, are particularly known. These partitions are inserted by one end of the collector and crimped on the latter, in particular by deformation of the wall of the collector, which ensures a temporary retention of the partition on the collector before soldering and ensures a tight connection of the partition on the wall of the collector after brazing.
Cependant les collecteurs sont également munis d'orifices de passage de tubes, lesdits orifices étant munis de collets saillant vers l'intérieur du collecteur. L'utilisation de cloisons internes nécessite ainsi une succession complexe d'étapes de crevage des collets et d'assemblage des cloisons à la paroi du collecteur entraînant un surcoût de fabrication, en particulier en cas d'utilisation de matrices internes pour la réalisation des collets. However, the collectors are also provided with tube through holes, said orifices being provided with flanges projecting towards the inside of the collector. The use of internal partitions thus requires a complex succession of stages of collars puncturing and assembly of the partitions to the wall of the collector resulting in additional manufacturing cost, especially when using internal dies for the realization of collars .
On connaît également des cloisons séparatrices de collecteur, dites externes, qui sont insérées dans des découpes de la paroi du collecteur. Ces cloisons permettent de réaliser des collets de passage de tubes dans le collecteur grâce auxdites matrices internes préalablement à l'assemblage des cloisons à la paroi du collecteur, ce qui simplifie la fabrication. Ces cloisons peuvent être maintenues en position avant assemblage, voir KR 20120076754 et KR20120120593, ceci par insertion en force des cloisons sur la paroi du collecteur, en particulier grâce à des surépaisseurs de leur périphérie en prise sur la paroi du collecteur. Ces cloisons imposent de très faibles écarts de dimension entre les cloisons et les parois des collecteurs pour assurer l'étanchéité après brasage. Les collecteurs, cependant, ne
sont pas toujours calibrés à une géométrie précise, ce qui nuit à l'assemblage et entraîne des risques sur l'étanchéité, même après brasage. Also known collector separator walls, said external, which are inserted into the cutouts of the wall of the collector. These partitions make it possible to produce tube passage collars in the manifold by virtue of said internal matrices prior to assembling the partitions to the wall of the collector, which simplifies manufacture. These partitions can be maintained in position before assembly, see KR 20120076754 and KR20120120593, this by insertion into force of the partitions on the wall of the collector, in particular through extra thickness of their periphery engaged on the wall of the collector. These partitions impose very small differences in size between the partitions and the walls of the collectors for sealing after soldering. Collectors, however, do not are not always calibrated to a precise geometry, which impedes the assembly and entails risks on the tightness, even after soldering.
L'invention vise à remédier en tout ou partie à ces inconvénients et propose un collecteur pour échangeur de chaleur, notamment pour véhicule automobile, ledit collecteur comportant une paroi tubulaire et au moins une cloison séparatrice cloisonnant le collecteur, ladite paroi tubulaire comprenant au moins une fente formée sur une portion de sa section et apte à permettre une insertion de ladite cloison séparatrice, la cloison séparatrice comportant une partie interne insérée dans la paroi tubulaire, ladite partie interne présentant une périphérie munie d'une première portion, notamment située en vis-à-vis de la fente, et d'une seconde portion située en vis-à-vis de la paroi tubulaire, ladite seconde portion étant adjacente à au moins une déformation de la paroi tubulaire telle qu'une section interne de la paroi tubulaire corresponde au pourtour de la cloison le long de ladite seconde portion. The invention aims to overcome all or part of these disadvantages and proposes a collector for heat exchanger, in particular for a motor vehicle, said collector comprising a tubular wall and at least one separating wall partitioning the collector, said tubular wall comprising at least one slot formed on a portion of its section and adapted to allow insertion of said partition wall, the partition wall having an inner portion inserted into the tubular wall, said inner portion having a periphery provided with a first portion, in particular located in with respect to the slot, and a second portion located opposite the tubular wall, said second portion being adjacent to at least one deformation of the tubular wall such that an inner section of the tubular wall corresponds to around the partition along said second portion.
Ainsi, la paroi du collecteur est calibrée ou recalibrée par ladite déformation et établit un contact continu avec le pourtour de ladite seconde portion, lors du pré assemblage du collecteur, de sorte qu'aucun espace ne subsiste entre ladite seconde portion et la paroi tubulaire. L'assemblage subséquent de l'échangeur thermique, par brasage notamment, de cette seconde portion à la paroi tubulaire de collecteur est de la sorte rendu parfaitement étanche. Autrement dit, on prévient tout passage de fluide, non seulement vers l'extérieur, mais également de part et d'autre de la cloison. Thus, the wall of the collector is calibrated or recalibrated by said deformation and establishes a continuous contact with the periphery of said second portion, during the pre-assembly of the collector, so that no space remains between said second portion and the tubular wall. The subsequent assembly of the heat exchanger, particularly by soldering, of this second portion to the tubular collector wall is thus made perfectly tight. In other words, it prevents any passage of fluid, not only to the outside, but also on both sides of the partition.
Selon d'autres caractéristiques de l'invention qui peuvent être prises ensemble ou séparément: According to other features of the invention which can be taken together or separately:
- ladite paroi tubulaire est cylindrique, en particulier de diamètre inférieur à 15 mm, de préférence inférieur ou égal à 12mm ; c'est en particulier à ce niveau de dimensions que la formation de collets dans le collecteur entraîne des déformations de la section des tubes que l'invention, grâce au phénomène de recalibration de ladite paroi tubulaire, vient pallier, said tubular wall is cylindrical, in particular with a diameter of less than 15 mm, preferably less than or equal to 12 mm; it is in particular at this level of dimensions that the formation of collars in the collector causes deformations of the section of the tubes that the invention, thanks to the phenomenon of recalibration of said tubular wall, compensates,
- ladite première portion s'étend sur la longueur de la fente et la seconde portion s'étend sur une partie complémentaire de la première portion sur la périphérie de la paroi tubulaire, said first portion extends over the length of the slot and the second portion extends over a complementary part of the first portion on the periphery of the tubular wall;
- ladite seconde portion est conformée en arc de cercle, de préférence selon un rayon équivalent à un rayon interne de la paroi tubulaire,
- la fente s'étend sur une section angulaire de la paroi angulaire, de préférence selon une section proche d'une section diamétrale de la paroi tubulaire, said second portion is shaped in an arc of a circle, preferably in a radius equivalent to an internal radius of the tubular wall; the slot extends over an angular section of the angular wall, preferably along a section close to a diametrical section of the tubular wall,
- la largeur de ladite fente est légèrement supérieure à celle de la cloison séparatrice, d'environ 0,05 à 015 mm, de sorte que l'assemblage subséquent de la cloison séparatrice à la paroi tubulaire, au niveau de la fente, lors d'un brasage de l'échangeur de chaleur correspondant, permette d'assurer un niveau d'étanchéité satisfaisant, the width of said slot is slightly greater than that of the separating partition, from about 0.05 to 015 mm, so that the subsequent assembly of the separating partition to the tubular wall, at the level of the slot, during brazing of the corresponding heat exchanger makes it possible to ensure a satisfactory level of sealing,
- ladite déformation de la paroi tubulaire comprend deux joncs annulaires bordant ladite seconde portion, said deformation of the tubular wall comprises two annular rings bordering said second portion,
- ladite cloison séparatrice comprend deux épaulements opposés, aptes à s'appliquer chacun sur un bord d'extrémité de la fente, said separating partition comprises two opposite shoulders, each capable of being applied to an end edge of the slot,
- ladite première portion de la cloison séparatrice est conformée de manière à affleurer de la périphérie de la paroi tubulaire au niveau de ladite fente, said first portion of the partition wall is shaped so as to be flush with the periphery of the tubular wall at said slot,
- ladite première portion de la cloison séparatrice comprend une partie en saillie de la paroi tubulaire, au niveau de ladite fente, said first portion of the partition wall comprises a portion projecting from the tubular wall, at the level of said slot,
- ladite partie en saillie comprend un plat transversal, notamment perpendiculaire à un plan médian de la fente, ledit plat permettant de favoriser un positionnement en appui de la cloison sur la paroi tubulaire, said projecting part comprises a transverse plate, in particular perpendicular to a median plane of the slot, said plate making it possible to favor a positioning in support of the partition on the tubular wall;
- ladite partie en saillie comprend deux bords rectilignes opposés, de part et d'autre du plat, notamment parallèles audit plan médian de la fente, ces bords rectilignes permettant en particulier un guidage et/ou maintien angulaire de la cloison séparatrice sur la paroi tubulaire, said projecting portion comprises two opposite rectilinear edges, on either side of the plate, in particular parallel to said median plane of the slot, these rectilinear edges allowing in particular a guiding and / or angular holding of the separating partition on the tubular wall; ,
- ladite cloison séparatrice est verrouillée solidairement à la paroi tubulaire, en particulier serrée contre ladite fente, said separating partition is locked integrally with the tubular wall, in particular clamped against said slot,
- ladite cloison et/ou la paroi tubulaire comporte une déformation locale au niveau de la fente, en particulier apte à serrer la cloison dans la fente et à la maintenir solidairement à la paroi tubulaire du collecteur, said partition and / or the tubular wall comprises a local deformation at the level of the slot, in particular able to clamp the partition in the slot and to hold it solidly to the tubular wall of the collector,
- ladite déformation locale est une surépaisseur annulaire, par exemple en forme de jonc, de la cloison et s'étend angulairement sur la longueur de la fente, - ladite fente est découpée à des dimensions inférieures au diamètre de la paroi tubulaire, de sorte que, la cloison séparatrice étant montée en force dans la fente, elle est retenue coincée à la paroi tubulaire,
- ladite fente et/ou cloison séparatrice est pourvue de deux encoches opposées, par exemple sensiblement diamétrales, et ladite paroi latérale comprend des emboutis pénétrant dans lesdites encoches. said local deformation is an annular extra-thickness, for example in the form of a ring, of the partition and extends angularly over the length of the slot, said slot is cut to dimensions smaller than the diameter of the tubular wall, so that , the separating partition being mounted in force in the slot, it is retained stuck to the tubular wall, said slot and / or separating partition is provided with two opposite notches, for example substantially diametrical, and said lateral wall comprises stampings penetrating into said notches.
L'invention concerne également un échangeur de chaleur, notamment pour le refroidissement de batteries, comportant au moins un collecteur tel que décrit ci- dessus. The invention also relates to a heat exchanger, in particular for cooling batteries, comprising at least one collector as described above.
Ledit collecteur pourra comprendre une pluralité d'orifices de passage de tubes de l'échangeur, lesdits orifices étant bordés de collets de raccordement aux tubes. Lesdits collets pourront avoir une configuration longitudinale parallèle à l'axe du collecteur. Said collector may comprise a plurality of tube through holes of the exchanger, said orifices being flanked by connection collars to the tubes. Said collars may have a longitudinal configuration parallel to the axis of the collector.
L'invention concerne également un procédé de pré assemblage d'une paroi tubulaire de collecteur, pour échangeur thermique, notamment pour véhicule automobile, et d'une cloison séparatrice cloisonnant le collecteur ladite paroi tubulaire comprenant au moins une fente formée sur une portion de sa section et apte à permettre une insertion de ladite cloison séparatrice, la cloison séparatrice comportant une partie interne apte à être insérée dans la paroi tubulaire, au travers de la fente, ladite partie interne présentant une périphérie munie d'une première portion, notamment destinée à venir en vis-à-vis de la fente, et d'une seconde portion destinée à venir en vis-à-vis de la paroi tubulaire, le procédé comprenant les étapes suivantes : The invention also relates to a method for pre-assembling a tubular manifold wall, for heat exchanger, in particular for a motor vehicle, and a separating partition partitioning the manifold said tubular wall comprising at least one slot formed on a portion of its section and adapted to allow insertion of said separating partition, the partition wall having an inner portion adapted to be inserted into the tubular wall, through the slot, said inner portion having a periphery provided with a first portion, in particular for facing the slot, and a second portion intended to come opposite the tubular wall, the method comprising the following steps:
- insertion de la cloison dans la fente, et - insertion of the partition into the slot, and
- déformation de la paroi tubulaire de telle façon qu'une section interne de la paroi tubulaire corresponde au pourtour de la dite seconde portion. - Deformation of the tubular wall such that an inner section of the tubular wall corresponds to the periphery of said second portion.
Avantageusement, ladite matrice peut comporter deux nervures circulaires parallèles, configurées pour la déformation de la paroi tubulaire selon deux joncs annulaires bordant ladite seconde portion. Advantageously, said matrix may comprise two parallel circular ribs, configured for the deformation of the tubular wall according to two annular rings bordering said second portion.
Selon différents aspects dudit procédé qui pourront être pris ensemble ou séparément : According to different aspects of said process that can be taken together or separately:
- on effectue un montage de l'ensemble de la paroi tubulaire et de la cloison séparatrice sur un gabarit de presse, la cloison séparatrice étant introduite dans la fente et la paroi tubulaire étant maintenue à l'opposé par une matrice du gabarit, the assembly of the tubular wall and of the separating partition is carried out on a press template, the separating partition being introduced into the slot and the tubular wall being held opposite by a matrix of the template,
- on réalise une mise en œuvre du gabarit en sorte que la première portion soit poussée en direction de la paroi tubulaire et que la seconde portion déforme ladite paroi tubulaire.
Avantageusement, la cloison séparatrice et la paroi tubulaire sont configurées pour qu'au terme de la mise en œuvre du gabarit, ladite cloison séparatrice soit verrouillée à la paroi tubulaire. - Implementation is made of the template so that the first portion is pushed towards the tubular wall and the second portion deforms said tubular wall. Advantageously, the separating partition and the tubular wall are configured so that at the end of the implementation of the template, said separating partition is locked to the tubular wall.
Ainsi, ladite fente étant par exemple découpée à des dimensions inférieures au diamètre de la paroi tubulaire, la cloison séparatrice est montée en force dans la fente par le gabarit, et elle est retenue coincée radialement à la paroi tubulaire au terme de la mise en œuvre du gabarit. Thus, said slot being for example cut to dimensions smaller than the diameter of the tubular wall, the separating wall is force-fitted into the slot by the template, and it is retained wedged radially to the tubular wall at the end of the implementation. of the template.
En variante, ladite cloison séparatrice étant pourvue de deux encoches opposées, par exemple sensiblement diamétrales, la cloison séparatrice est montée dans la fente par le gabarit et au terme de la mise en œuvre du gabarit, elle est retenue coincée radialement à la paroi tubulaire par des emboutis formés dans ladite paroi tubulaire, en prise dans les encoches. As a variant, said separating partition being provided with two opposite notches, for example substantially diametrical, the separating partition is mounted in the slot by the template and at the end of the implementation of the template, it is retained wedged radially to the tubular wall by stampings formed in said tubular wall, engaged in the notches.
Selon une autre variante, ladite cloison séparatrice affleure la périphérie externe de la paroi tubulaire par sa première portion. Ledit gabarit peut alors comporter une partie poinçon pourvue d'une nervure, voire de pointes, apte à s'appliquer contre ladite première portion, en sorte qu'à la mise en œuvre du gabarit la première portion soit déformée et coincée et/ou serrée contre la fente et que la cloison soit verrouillée à la paroi tubulaire. According to another variant, said separating partition is flush with the outer periphery of the tubular wall by its first portion. Said template may then comprise a punch portion provided with a rib, or even tips, adapted to be applied against said first portion, so that at the implementation of the template the first portion is deformed and wedged and / or tightened against the slot and that the partition is locked to the tubular wall.
D'autres caractéristiques et avantages de l'invention apparaîtront encore à la lecture de la description qui suit d'exemples de réalisation présentés à titre illustratif en référence aux figures de dessin annexées. Sur ces figures : Other features and advantages of the invention will become apparent on reading the following description of exemplary embodiments presented for illustrative purposes with reference to the attached drawing figures. In these figures:
- la figure 1 est une vue en perspective partielle illustrant un collecteur conforme à l'invention en cours de pré assemblage, FIG. 1 is a partial perspective view illustrating a collector according to the invention during pre-assembly,
- la figure 2 est une vue en coupe axiale partielle du collecteur de la figure 1 pré assemblé, FIG. 2 is a view in partial axial section of the collector of FIG. 1 pre-assembled,
- la figure 3 est une vue en élévation partielle du collecteur de la figure 1 pré assemblé, FIG. 3 is a partial elevational view of the collector of FIG. 1 pre-assembled,
- la figure 4 est une vue en coupe transversale du collecteur de la figure 1 , en cours de montage, FIG. 4 is a cross-sectional view of the collector of FIG. 1, during assembly,
- la figure 5 est une vue en coupe du collecteur de la figure 4 pré assemblé, FIG. 5 is a sectional view of the collector of FIG. 4 pre-assembled,
- la figure 6 est une vue en coupe transversale d'un collecteur selon une variante de réalisation de l'invention en cours de montage, FIG. 6 is a cross-sectional view of a collector according to an alternative embodiment of the invention being assembled,
- la figure 7 est une vue en coupe du collecteur de la figure 6 pré assemblé, et
- la figure 8 montre un échangeur de chaleur pour batterie conforme à l'invention. FIG. 7 is a sectional view of the collector of FIG. 6 pre-assembled, and - Figure 8 shows a battery heat exchanger according to the invention.
Comme illustré, l'invention concerne un collecteur 1 d'un échangeur de chaleur 3, notamment pour une batterie de véhicule automobile. Le collecteur 1 comprend une paroi tubulaire 5 et une ou plusieurs cloisons séparatrices 7 permettant d'orienter une circulation d'un fluide 9 d'échange thermique, ici en plusieurs passes, au sein de l'échangeur thermique. Ladite paroi tubulaire est obtenue, par exemple, par pliage et soudage, le long d'une ligne parallèle à l'axe longitudinal du collecteur, d'un flanc de matière. As illustrated, the invention relates to a manifold 1 of a heat exchanger 3, in particular for a motor vehicle battery. The collector 1 comprises a tubular wall 5 and one or more separating partitions 7 for directing a circulation of a heat exchange fluid 9, here in several passes, within the heat exchanger. Said tubular wall is obtained, for example, by folding and welding, along a line parallel to the longitudinal axis of the collector, a flank of material.
La cloison séparatrice 7 est du type dit externe, c'est-à-dire qu'elle est configurée pour être introduite à l'intérieur du collecteur, ceci à travers une fente 1 1 , formée sur une portion angulaire, notamment sensiblement diamétrale, de la paroi tubulaire. La fente 1 1 est ainsi apte à accueillir ladite cloison séparatrice 7 pour cloisonner le collecteur 1 . Cette fente 1 1 est ici formée othogonalement à la paroi tubulaire 5, mais elle pourrait encore être inclinée relativement à un plan transversal à la paroi tubulaire. The separating partition 7 is of the so-called external type, that is to say that it is configured to be introduced inside the manifold, this through a slot January 1, formed on an angular portion, in particular substantially diametrical, of the tubular wall. The slot 1 1 is thus able to accommodate said partition wall 7 to partition the collector 1. This slot 1 1 is here orthogonally formed to the tubular wall 5, but it could still be inclined relative to a plane transverse to the tubular wall.
La paroi tubulaire 5 est cylindrique, en particulier de diamètre inférieur à 15 mm, de préférence inférieur ou égal à 12mm . Cette paroi est en outre pourvue d'orifices de passage de tubes 15 de l'échangeur de chaleur. Lesdits orifices de passage sont bordés de collets 13 de raccordement auxdits tubes 15. Les collets 13 sont ici oblongs, d'extension longitudinale parallèle à l'axe longitudinal de la paroi tubulaire. A ce niveau de dimensions relativement faibles du collecteur, la formation des collets 13 déforme la paroi tubulaire dont le contour, entre deux collets voisins, s'éloigne significativement d'une forme circulaire. The tubular wall 5 is cylindrical, in particular with a diameter of less than 15 mm, preferably less than or equal to 12 mm. This wall is further provided with tube through holes 15 of the heat exchanger. Said passage orifices are lined with collars 13 for connection to said tubes 15. The collars 13 are here oblong, of longitudinal extension parallel to the longitudinal axis of the tubular wall. At this level of relatively small dimensions of the collector, the formation of the collars 13 deforms the tubular wall whose contour, between two adjacent collars, significantly away from a circular shape.
Le collecteur 1 est représenté à la figure 1 en cours de pré assemblage sur un gabarit de presse 17. La paroi tubulaire 5 et la cloison séparatrice 7 sont disposés entre des éléments de presse 19 du gabarit pour être poussés l'un vers l'autre selon les flèches 20. The collector 1 is shown in FIG. 1 during pre-assembly on a press jig 17. The tubular wall 5 and the separating partition 7 are arranged between press members 19 of the jig to be pushed towards each other according to the arrows 20.
L'élément de presse face à la cloison 7 est un poussoir 19a, tandis que l'élément de presse opposé est une matrice 19b. The press member facing the partition 7 is a pusher 19a, while the opposite press member is a matrix 19b.
La cloison séparatrice 7 est plane en forme générale de disque. Elle comporte une partie interne 21 , destinée à être insérée dans la paroi tubulaire 5, ladite partie interne
21 présentant une périphérie munie d'une première portion 21 a en vis-à-vis de la fente 1 1 et une seconde portion complémentaire 21 b en vis-à-vis de la paroi tubulaire 5. The partition wall 7 is flat in the general shape of a disc. It comprises an inner part 21 intended to be inserted into the tubular wall 5, said inner part 21 having a periphery provided with a first portion 21 has vis-à-vis the slot 1 1 and a second complementary portion 21 b vis-à-vis the tubular wall 5.
Autrement dit, la première portion 21 a et la seconde portion 21 b s'étendent en continuité l'une de l'autre sur toute la périphérie de la paroi tubulaire 5. In other words, the first portion 21a and the second portion 21b extend continuously from one another over the entire periphery of the tubular wall 5.
La première portion 21 a, voir aussi les figures 4 et 5, comporte une face supérieure en arc de cercle 23 prévue pour affleurer la périphérie de la paroi tubulaire 5, après pré assemblage. Cette face 23 constitue une face d'appui vis-à-vis de l'élément de poussée 19a du gabarit. The first portion 21a, see also Figures 4 and 5, comprises an upper arcuate face 23 provided for flush with the periphery of the tubular wall 5, after pre-assembly. This face 23 constitutes a bearing surface vis-à-vis the push member 19a of the template.
La première portion 21 a comprend notamment deux épaulements 25 opposés, aptes à s'appliquer chacun sur un bord d'extrémité 27 de la fente 1 1 . The first portion 21a comprises in particular two opposing shoulders 25, each capable of being applied to an end edge 27 of the slot 11.
La seconde portion 21 b est disposée contre la paroi tubulaire 5, laquelle s'applique par sa face externe contre la matrice 19b à l'opposé. The second portion 21b is disposed against the tubular wall 5, which is applied by its outer face against the matrix 19b to the opposite.
Selon l'invention, le collecteur pré assemblé 1 est tel que ladite seconde portion 21 b est adjacente à au moins une déformation 31 de la paroi tubulaire 5 telle qu'une section interne de la paroi tubulaire 5 le long de ladite seconde portion 21 b corresponde au pourtour de ladite seconde portion 21 b. According to the invention, the pre-assembled collector 1 is such that said second portion 21b is adjacent to at least one deformation 31 of the tubular wall 5 such as an internal section of the tubular wall 5 along said second portion 21b correspond to the periphery of said second portion 21 b.
Ainsi, la paroi tubulaire 5 dont la circonférence interne est notamment affectée par la réalisation préalable desdits collets 13 est calibrée ou recalibrée dimensionnellement par le ladite déformation 31 pour suivre le pourtour de ladite seconde portion 21 b. On prévient de la sorte tout espace ou jeu qui pourrait subsister entre la cloison séparatrice et la paroi tubulaire, en particulier sur cette seconde portion 21 b face à la paroi tubulaire 5. L'assemblage subséquent, par brasage, de l'échangeur 3 comprenant le collecteur pré assemblé est alors rendu parfaitement étanche, en particulier sur cette seconde portion 21 b, car l'intimité de contact entre les pièces a été renforcée. Thus, the tubular wall 5 whose inner circumference is affected by the prior embodiment of said flanges 13 is dimensionally calibrated or recalibrated by said deformation 31 to follow the periphery of said second portion 21 b. In this way, any space or clearance that may exist between the separating partition and the tubular wall, in particular on this second portion 21b facing the tubular wall 5, is prevented. The subsequent assembly, by brazing, of the exchanger 3 comprising the pre-assembled collector is then made perfectly tight, in particular on this second portion 21b, because the intimacy of contact between the parts has been reinforced.
Ladite seconde portion 21 b est ici conformée avec un pourtour en arc de cercle de rayon r équivalent à celui de la paroi tubulaire 5, en particulier tel qu'il était avant la formation desdits collets13, de sorte que la déformation 31 recalibre la paroi tubulaire 5 à son rayon d'origine. Said second portion 21 b is here shaped with a periphery in an arc of radius r equivalent to that of the tubular wall 5, in particular such as it was before the formation of said collars13, so that the deformation 31 recalibrates the tubular wall 5 to its original radius.
Il est à noter que la largeur de la fente 1 1 , supérieure à celle de la cloison séparatrice 7 d'environ 0,05 à 0,15 mm, comme indiqué précédemment, permet que, lors de l'assemblage de l'échangeur 3, le brasage subséquent de la cloison séparatrice 7 à la paroi tubulaire 5, plus précisément de la première portion 21 a au niveau de la
fente 1 1 , soit réalisé avec un niveau d'étanchéité équivalent à celui de la seconde portion 21 b vis-à-vis de la paroi tubulaire 5. It should be noted that the width of the slot 1 1, greater than that of the partition wall 7 of about 0.05 to 0.15 mm, as indicated above, allows that, during the assembly of the exchanger 3 , the subsequent soldering of the separating partition 7 to the tubular wall 5, more precisely of the first portion 21a at the level of the slot 1 1, is made with a sealing level equivalent to that of the second portion 21 b vis-à-vis the tubular wall 5.
De façon avantageuse, ladite seconde portion 21 b est bordée de deux joncs annulaires 33 correspondant à ladite déformation 31 de la paroi tubulaire. Cette déformation 31 résulte du fait que la matrice 19b pourra comporter, comme ici, deux nervures circulaires 35 parallèles, aptes à déformer la paroi tubulaire 5 selon les deux joncs annulaires 33. Lesdits joncs 33 sont situés ici de part et d'autre de la seconde portion 21 b. Advantageously, said second portion 21b is bordered by two annular rings 33 corresponding to said deformation 31 of the tubular wall. This deformation 31 results from the fact that the matrix 19b may comprise, as here, two parallel circular ribs 35, able to deform the tubular wall 5 according to the two annular rings 33. Said rods 33 are located here on either side of the second portion 21 b.
Cela étant, le poinçon 19a est ici pourvu sur sa périphérie d'une nervure 29 médiane apte à s'appliquer contre ladite face d'appui 23, en sorte qu'à la mise en œuvre du gabarit la face d'appui 23 soit déformée par la nervure 29 pour s'appliquer contre la fente 1 1 . Cette déformation, non représentée, peut être faible puisque la largeur de ladite fente 1 1 est seulement légèrement supérieure à celle de la cloison séparatrice 7, d'environ 0,05 à 0,15 mm. . La déformation est locale, notamment annulaire, par exemple en forme de jonc, et s'étend en vis-à-vis de la fente 1 1 , sur la longueur de cette dernière. Au terme du pré assemblage, la cloison 7 est coincée et/ou serrée contre la fente 1 1 en sorte de verrouiller la cloison 7 à la paroi tubulaire 5 That being so, the punch 19a is here provided on its periphery with a median rib 29 adapted to be applied against said bearing face 23, so that when the template is fitted, the bearing face 23 is deformed. by the rib 29 to be applied against the slot 1 1. This deformation, not shown, may be small since the width of said slot 1 1 is only slightly greater than that of the partition wall 7, about 0.05 to 0.15 mm. . The deformation is local, especially annular, for example rod-shaped, and extends vis-à-vis the slot 1 1, along the length of the latter. At the end of the pre-assembly, the partition 7 is wedged and / or tightened against the slot 1 1 so as to lock the partition 7 to the tubular wall 5
Le collecteur obtenu peut alors être manipulé sans risque que la cloison ne ressorte de la paroi tubulaire par ladite fente, notamment jusqu' à son montage ultérieur sur l'échangeur. Un tel résultat pourra aussi être obtenu de façon différente. The collector obtained can then be handled without risk that the partition comes out of the tubular wall through said slot, in particular until its subsequent assembly on the exchanger. Such a result can also be obtained in a different way.
Par exemple, la fente 1 1 peut être découpée à des dimensions inférieures au diamètre externe d, de préférence un peu inférieures, au diamètre d, comme illustré à la figure 4, de sorte que, la cloison séparatrice 7 peut être montée en force dans la fente 1 1 , comme représenté à la figure 5. Cette cloison 7 est alors retenue coincée au terme du pré assemblage de la cloison 7 à la paroi tubulaire 5. Il n'est donc plus nécessaire de déformer la première portion 21 a par le poinçon 19a comme dans l'exemple précité, pour solidariser la cloison 7 à la paroi tubulaire 5. For example, the slot 11 may be cut to dimensions smaller than the external diameter d, preferably a little smaller than the diameter d, as illustrated in FIG. 4, so that the separating partition 7 can be force-fitted into the slot 1 1, as shown in Figure 5. This partition 7 is then retained stuck at the end of the pre-assembly of the partition 7 to the tubular wall 5. It is therefore no longer necessary to deform the first portion 21 has the punch 19a as in the above example, for securing the partition 7 to the tubular wall 5.
En variante, comme illustré à la figure 6, ladite cloison séparatrice 7 est pourvue de deux encoches 37 opposées, sensiblement diamétrales, de sorte que la cloison séparatrice 7 étant montée dans la fente 1 1 , figure 7, elle est retenue coincée à la paroi tubulaire 5 par des bossages formés sur la paroi tubulaire 5, en prise dans les encoches 37.
Il est à noter que la cloison séparatrice 7 peut encore être conformée pour venir en saillie de la paroi tubulaire 5, notamment par la première portion 21 a formant saillie au niveau de la fente 1 1 , comme représenté en traits interrompus aux figures 6 et 7. Alternatively, as shown in Figure 6, said partition wall 7 is provided with two notches 37 opposite, substantially diametrical, so that the partition wall 7 being mounted in the slot 1 1, Figure 7, it is retained stuck to the wall tubular 5 by bosses formed on the tubular wall 5, engaged in the notches 37. It should be noted that the partition wall 7 can be further shaped to project from the tubular wall 5, in particular by the first portion 21a protruding at the slot 1 1, as shown in broken lines in FIGS. 6 and 7. .
La partie en saillie 21 a comprend ici un plat 39 perpendiculaire à un plan médian P de la fente 1 1 et deux bords rectilignes 41 opposés, de part et d'autre du plat 39, parallèles audit plan médian P de la fente. Le plat 39 constitue une face d'appui pour le poussoir 19a du gabarit. Les bords rectilignes 41 permettent en particulier un guidage et/ou maintien angulaire de la cloison séparatrice 7 lors de la mise en œuvre du gabarit 17, notamment lors du mouvement de presse du gabarit, en vue de ladite déformation de la paroi tubulaire 5. Ils permettent en particulier de s'assurer que la cloison est bien sur la paroi tubulaire par chacun des épaulements 25. The projecting portion 21a here comprises a flat 39 perpendicular to a median plane P of the slot 1 1 and two straight edges 41 opposite, on either side of the plate 39, parallel to said median plane P of the slot. The plate 39 constitutes a bearing surface for the pusher 19a of the template. The rectilinear edges 41 allow in particular an angular guidance and / or maintenance of the separating partition 7 during the implementation of the template 17, in particular during the press movement of the template, with a view to said deformation of the tubular wall 5. in particular make it possible to ensure that the partition is on the tubular wall by each of the shoulders 25.
Le procédé de pré assemblage du collecteur selon l'invention comprend les étapes suivantes : The pre-assembly method of the collector according to the invention comprises the following steps:
- le montage de l'ensemble de la paroi tubulaire 5 et de la cloison séparatrice 7 sur le gabarit de presse 17, et the assembly of the assembly of the tubular wall 5 and of the separating partition 7 on the press template 17, and
- la mise en œuvre du gabarit de presse 17, en sorte que, la cloison séparatrice 7 introduite dans la fente 1 1 soit poussée par le poussoir 19a, par sa face d'appui 23, 39, en direction de la paroi tubulaire 5, laquelle est maintenue à l'opposé par la matrice 19b du gabarit. - The implementation of the press template 17, so that the separating partition 7 introduced into the slot 1 1 is pushed by the pusher 19a, its bearing face 23, 39, in the direction of the tubular wall 5, which is maintained at the opposite by the matrix 19b of the template.
La seconde portion 21 b s'applique alors contre la paroi tubulaire 5, laquelle est déformée de telle façon que sa section interne ou périphérie corresponde au pourtour de la dite seconde portion 21 b. The second portion 21b then applies against the tubular wall 5, which is deformed so that its inner section or periphery corresponds to the periphery of said second portion 21b.
Au terme de la mise en œuvre du gabarit, le tube est recalibré et ladite cloison séparatrice 7 est verrouillée à la paroi tubulaire 5, en étant retenue coincée ou serrée à la paroi tubulaire 5. At the end of the implementation of the template, the tube is recalibrated and said separating partition 7 is locked to the tubular wall 5, being retained wedged or clamped to the tubular wall 5.
Ce verrouillage peut être assuré par coincement de la cloison 7 sur la fente 1 1 , par déformation de la face d'appui 23 en vis-à-vis de la fente 1 1 ou coincement de la périphérie de la cloison 7 sur le pourtour de la paroi tubulaire 5 ou encore par une prise sur encoches 37 de la cloison sur la paroi tubulaire, ainsi que mentionné précédemment. This locking can be ensured by wedging the partition 7 on the slot 1 1, by deformation of the bearing face 23 vis-à-vis the slot 1 1 or jamming of the periphery of the partition 7 on the periphery of the tubular wall 5 or by a socket on notches 37 of the partition on the tubular wall, as mentioned above.
L'assemblage de l'échangeur de chaleur 3 comportant le collecteur pré assemblé 1 , illustré à la figure 8, est avantageusement réalisé par une opération de brasage, consistant notamment à chauffer les pièces de l'échangeur, pré-
assemblées, à une température supérieure à la température de fusion d'un métal d'apport, la fixation des pièces étant réalisée par diffusion par capillarité, à la surface des pièces, dudit métal d'apport. The assembly of the heat exchanger 3 comprising the pre-assembled collector 1, illustrated in FIG. 8, is advantageously carried out by a soldering operation, consisting in particular of heating the exchanger parts, assembled, at a temperature above the melting temperature of a filler metal, the fixing of the parts being carried out by capillary diffusion, on the surface of the parts, said filler metal.
L'invention apporte un collecteur à cloison externe pour échangeur de chaleur, notamment pour véhicule automobile, simple à assembler et de haut niveau d'étanchéité.
The invention provides an external partition manifold for heat exchanger, especially for a motor vehicle, simple to assemble and high level of sealing.
Claims
1 . Collecteur (1 ) pour échangeur thermique (3), notamment pour véhicule automobile, ledit collecteur (1 ) comportant une paroi tubulaire (5) et au moins une cloison séparatrice (7) cloisonnant le collecteur (1 ), ladite paroi tubulaire (5) comprenant au moins une fente (1 1 ) formée sur une portion de sa section et apte à permettre une insertion de ladite cloison séparatrice (7), la cloison séparatrice (7) comportant une partie interne (21 ) insérée dans la paroi tubulaire (5), ladite partie interne (21 ) présentant une périphérie munie d'une première portion (21 a) et d'une seconde portion (21 b), située en vis-à-vis de la paroi tubulaire (5), ladite seconde portion (21 b) étant adjacente à au moins une déformation (31 ) de la paroi tubulaire telle qu'une section interne de la paroi tubulaire (5) corresponde au pourtour de la cloison le long de la seconde portion (21 b). 1. Collector (1) for heat exchanger (3), especially for a motor vehicle, said collector (1) comprising a tubular wall (5) and at least one separating partition (7) partitioning the collector (1), said tubular wall (5) comprising at least one slot (1 1) formed on a portion of its section and adapted to allow insertion of said separating partition (7), the partition wall (7) having an inner portion (21) inserted into the tubular wall (5). ), said inner portion (21) having a periphery provided with a first portion (21a) and a second portion (21b), located opposite the tubular wall (5), said second portion (21b) being adjacent to at least one deformation (31) of the tubular wall such that an inner section of the tubular wall (5) corresponds to the periphery of the partition along the second portion (21b).
2. Collecteur (1 ) selon la revendication 1 , dans lequel ladite paroi tubulaire2. The collector (1) according to claim 1, wherein said tubular wall
(5) est cylindrique, en particulier de diamètre externe d inférieur à 15 mm, de préférence inférieur ou égal à 12 mm. (5) is cylindrical, in particular of external diameter d less than 15 mm, preferably less than or equal to 12 mm.
3. Collecteur (1 ) selon la revendication 1 ou 2, dans lequel ladite première portion (21 a) s'étend sur la longueur de la fente (1 1 ) et la seconde portion (21 b) s'étend sur une partie complémentaire de la première portion (21 a) sur la périphérie de la paroi tubulaire (5). 3. Collector (1) according to claim 1 or 2, wherein said first portion (21 a) extends over the length of the slot (1 1) and the second portion (21 b) extends over a complementary portion of the first portion (21 a) on the periphery of the tubular wall (5).
4. Collecteur (1 ) selon l'une quelconque des revendications précédentes, dans lequel la fente (1 1 ) s'étend sur une section diamétrale de la paroi tubulaire (5). 4. The collector (1) according to any one of the preceding claims, wherein the slot (1 1) extends over a diametrical section of the tubular wall (5).
5. Collecteur (1 ) selon l'une quelconque des revendications précédentes, dans lequel ladite déformation (31 ) de la paroi tubulaire comprend deux joncs annulaires (33) bordant ladite seconde portion (21 b). 5. The collector (1) according to any one of the preceding claims, wherein said deformation (31) of the tubular wall comprises two annular rings (33) bordering said second portion (21 b).
6. Collecteur (1 ) selon la revendication précédente, dans lequel lesdits joncs annulaires (33) sont des emboutis de la paroi tubulaire (5).
6. The collector (1) according to the preceding claim, wherein said annular rings (33) are stampings of the tubular wall (5).
7. Collecteur (1 ) selon l'une quelconque des revendications précédentes, dans lequel ladite première portion (21 a) de la cloison séparatrice affleure la périphérie externe de la paroi tubulaire (5) au niveau de ladite fente (1 1 ). 7. Collector (1) according to any one of the preceding claims, wherein said first portion (21 a) of the separating wall is flush with the outer periphery of the tubular wall (5) at said slot (1 1).
8 . Collecteur (1 ) selon l'une quelconque des revendications précédentes, dans lequel ladite première portion (21 a) de la cloison séparatrice comprend une partie en saillie de la paroi tubulaire (5), au niveau de ladite fente (1 1 ). 8. A collector (1) as claimed in any one of the preceding claims, wherein said first portion (21a) of the partition wall comprises a projecting portion of the tubular wall (5) at said slot (11).
9. Collecteur (1 ) selon la revendication précédente, dans lequel ladite partie en saillie comprend un plat (39) perpendiculaire à un plan médian P de la fente (1 1 ), ladite partie en saillie comprenant deux bords rectilignes (41 ) opposés, de part et d'autre du plat (39), parallèles audit plan médian P de la fente (1 1 ) . 9. Collector (1) according to the preceding claim, wherein said projecting portion comprises a plate (39) perpendicular to a median plane P of the slot (1 1), said projecting portion comprising two rectilinear edges (41) opposite, on both sides of the plate (39), parallel to said median plane P of the slot (1 1).
10. Collecteur (1 ) selon l'une quelconque des revendications précédentes, dans lequel ladite cloison séparatrice (7) est verrouillée solidairement à la paroi tubulaire (5). 10. Collector (1) according to any one of the preceding claims, wherein said partition wall (7) is integrally locked to the tubular wall (5).
1 1 . Collecteur (1 ) selon la revendication précédente, dans lequel ladite cloison (7) et/ou la paroi tubulaire (5) comporte une déformation locale au niveau de la fente (1 1 ). 1 1. Collector (1) according to the preceding claim, wherein said partition (7) and / or the tubular wall (5) comprises a local deformation at the slot (1 1).
12. Collecteur (1 ) selon l'une quelconque des revendications précédentes, dans lequel ladite fente (1 1 ) est découpée à des dimensions inférieures au diamètre d de la paroi tubulaire (5), de sorte que, la cloison séparatrice (7) étant montée en force dans la fente (1 1 ), elle est retenue coincée à la paroi tubulaire (5). 12. Collector (1) according to any one of the preceding claims, wherein said slot (1 1) is cut to dimensions smaller than the diameter d of the tubular wall (5), so that the partition (7) being mounted in force in the slot (1 1), it is retained stuck to the tubular wall (5).
13. Collecteur (1 ) selon l'une quelconque des revendications précédentes, dans lequel ladite cloison séparatrice (7) est pourvue de deux encoches opposées (37), par exemple sensiblement diamétrales, et ladite paroi latérale (5) comprend des emboutis pénétrant dans lesdites encoches (37).
13. Collector (1) according to any one of the preceding claims, wherein said separating partition (7) is provided with two opposite notches (37), for example substantially diametrical, and said side wall (5) comprises embossed penetrating into said notches (37).
14. Echangeur thermique (3), notamment pour le refroidissement de batterie, comportant au moins un collecteur (1 ) selon l'une quelconque des revendications précédentes. 14. Heat exchanger (3), in particular for battery cooling, comprising at least one collector (1) according to any one of the preceding claims.
15. Procédé de pré assemblage d'une paroi tubulaire (5) d'un collecteur (1 ) pour échangeur thermique (3), notamment pour véhicule automobile, et d'une cloison séparatrice (7) cloisonnant le collecteur (1 ), ladite paroi tubulaire (5) comprenant au moins une fente (1 1 ) formée sur une portion de sa section et apte à permettre une insertion de ladite cloison séparatrice (7), la cloison séparatrice (7) comportant une partie interne (21 ) apte à être insérée dans la paroi tubulaire (5) au travers de la fente (1 1 ), ladite partie interne (21 ) présentant une périphérie munie d'une première portion (21 a) et d'une seconde portion (21 b), destinée à venir en vis-à-vis de la paroi tubulaire (5), le procédé comprenant les étapes suivantes : 15. A method for pre-assembling a tubular wall (5) of a collector (1) for a heat exchanger (3), especially for a motor vehicle, and a partition wall (7) partitioning the collector (1), said tubular wall (5) comprising at least one slot (1 1) formed on a portion of its section and adapted to allow insertion of said partition wall (7), the partition wall (7) having an inner portion (21) adapted to to be inserted into the tubular wall (5) through the slot (1 1), said inner portion (21) having a periphery provided with a first portion (21 a) and a second portion (21 b) for to come opposite the tubular wall (5), the method comprising the following steps:
- insertion de la cloison (7) dans la fente (1 1 ), et - insertion of the partition (7) in the slot (1 1), and
- déformation de la paroi tubulaire (5), de telle façon qu'une section interne de la paroi tubulaire (5) corresponde au pourtour de la dite seconde portion (21 b).
- Deformation of the tubular wall (5), such that an inner section of the tubular wall (5) corresponds to the periphery of said second portion (21 b).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1361294A FR3013436B1 (en) | 2013-11-18 | 2013-11-18 | COLLECTOR FOR HEAT EXCHANGER |
PCT/EP2014/072771 WO2015071069A1 (en) | 2013-11-18 | 2014-10-23 | Manifold for a heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3071916A1 true EP3071916A1 (en) | 2016-09-28 |
Family
ID=50137809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14799115.2A Withdrawn EP3071916A1 (en) | 2013-11-18 | 2014-10-23 | Manifold for a heat exchanger |
Country Status (7)
Country | Link |
---|---|
US (1) | US10288362B2 (en) |
EP (1) | EP3071916A1 (en) |
JP (1) | JP6416928B2 (en) |
KR (1) | KR101868245B1 (en) |
CN (1) | CN105874296A (en) |
FR (1) | FR3013436B1 (en) |
WO (1) | WO2015071069A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3663695B1 (en) * | 2018-12-04 | 2021-08-18 | Valeo Systemes Thermiques | Collector making up a heat exchanger |
WO2022208733A1 (en) * | 2021-03-31 | 2022-10-06 | 三菱電機株式会社 | Heat exchanger |
Citations (1)
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JPH0396587U (en) * | 1989-12-27 | 1991-10-02 |
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2013
- 2013-11-18 FR FR1361294A patent/FR3013436B1/en not_active Expired - Fee Related
-
2014
- 2014-10-23 CN CN201480070907.3A patent/CN105874296A/en active Pending
- 2014-10-23 JP JP2016553719A patent/JP6416928B2/en not_active Expired - Fee Related
- 2014-10-23 US US15/037,120 patent/US10288362B2/en not_active Expired - Fee Related
- 2014-10-23 WO PCT/EP2014/072771 patent/WO2015071069A1/en active Application Filing
- 2014-10-23 KR KR1020167015903A patent/KR101868245B1/en active IP Right Grant
- 2014-10-23 EP EP14799115.2A patent/EP3071916A1/en not_active Withdrawn
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JPH0396587U (en) * | 1989-12-27 | 1991-10-02 |
Non-Patent Citations (1)
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See also references of WO2015071069A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2017505421A (en) | 2017-02-16 |
FR3013436B1 (en) | 2018-12-07 |
US20160334173A1 (en) | 2016-11-17 |
JP6416928B2 (en) | 2018-10-31 |
FR3013436A1 (en) | 2015-05-22 |
KR20160084470A (en) | 2016-07-13 |
KR101868245B1 (en) | 2018-07-17 |
WO2015071069A1 (en) | 2015-05-21 |
US10288362B2 (en) | 2019-05-14 |
CN105874296A (en) | 2016-08-17 |
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