EP3513138B1 - Gecrimpter artikel mit gecrimpten ecken - Google Patents

Gecrimpter artikel mit gecrimpten ecken Download PDF

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Publication number
EP3513138B1
EP3513138B1 EP17764429.1A EP17764429A EP3513138B1 EP 3513138 B1 EP3513138 B1 EP 3513138B1 EP 17764429 A EP17764429 A EP 17764429A EP 3513138 B1 EP3513138 B1 EP 3513138B1
Authority
EP
European Patent Office
Prior art keywords
crimped
corner
cover
crimping
article according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17764429.1A
Other languages
English (en)
French (fr)
Other versions
EP3513138A1 (de
Inventor
Sébastien Devedeux
Laurent Odillard
Demetrio ONETTI
Carlos Da Silva
Patrick Da Silva
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP3513138A1 publication Critical patent/EP3513138A1/de
Application granted granted Critical
Publication of EP3513138B1 publication Critical patent/EP3513138B1/de
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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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0082—Charged air coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

Definitions

  • the present invention relates to the technical field of motor vehicle equipment, in particular air supply equipment for motor vehicle engines and more particularly to engines whose supply air comes from a compressor or a turbocharger.
  • Charge air Supply air from a compressor or turbocharger is also called "charge air”.
  • RAS charge air cooler
  • a RAS generally has a heat exchange bundle.
  • This heat exchange bundle comprises a stack of plates or tubes alternately forming circulation channels for the supercharged air to be cooled and channels for the circulation of heat transfer fluid, in particular engine coolant.
  • the heat exchange between the plates or tubes and the charge air is carried out in part by means of turbulators.
  • a receptacle which generally has the shape of a straight, hollow cylinder, most often with a rectangular base, connected at one of its open ends to an inlet air box and to the another to an outlet air box (I-configuration, that is to say that the air to be cooled follows a path in a straight line); or at one of its open ends to an inlet and outlet air box and at the other to a deflection air box (U-shaped configuration, i.e. the air to be cooled follows a bent path in order to emerge substantially collinearly with its direction of entry).
  • I-configuration that is to say that the air to be cooled follows a path in a straight line
  • U-shaped configuration i.e. the air to be cooled follows a bent path in order to emerge substantially collinearly with its direction of entry
  • the receptacle is connected to the air boxes by means of a manifold, the general shape of which is a straight cylinder with a rectangular base with rounded corners.
  • the collector has a first end of coupling to the airbox and a second coupling end to the harness receptacle.
  • the second coupling end completely surrounds the bundle and is attached to it by welding and / or brazing.
  • the first coupling end includes four flaps corresponding to each of the sides of the harness receptacle; the rounded corners being left devoid of flaps.
  • the flaps of the first end of the manifold are crimped onto an outer surface of the corresponding air box.
  • the fixing is carried out along the flaps except for the corners. This fixing in combination with a seal ensures the tightness of the RAS at the interfaces between manifolds and water boxes.
  • the RAS water boxes are subjected to stresses due to the force exerted by the liquids which pass through the beam to the boxes. This force is directed in a direction collinear with the generatrix of the right cylinder formed by the receptacle and the crimping flange.
  • an objective of the present invention is to overcome one of the drawbacks of the state of the art described above, and in particular to guarantee the attachment between the manifold and the air box.
  • the corner may have a perimeter whose shape is an arc of a circle of radius R1.
  • the hollow surface is preferably concave.
  • the shape of the concave hollow surface is advantageously chosen so that a line on the concave hollow surface marked by a free edge of the crimped portion of the notch on the corner has a length equal to ⁇ 20% of the length of the 'arc of a circle of radius R1 forming the periphery of the corner.
  • the concave hollow surface corresponds to the surface of a sphere with radius R2 equal to ⁇ 20%, preferentially to ⁇ 10%, more preferably to ⁇ 5%, of the radius R1, always preferentially around R1.
  • a pole of the sphere of radius R2 corresponds to the middle of the arc of a circle of radius R1.
  • the cover may have a contour of which the wedge forms part, and the crimping flange before crimping a cylindrical wall of which the part of the corner intended to be crimped and corresponding to the contour of the cover forms part, after crimping the cylindrical wall being crimped to the less in part, preferably in full, on the contour of the cover.
  • the crimped part of the corner preferably has a constant thickness.
  • the crimped article may further comprise a receptacle having an edge having an exterior surface and an interior surface, the interior surface of the edge defining an interior space covered by the lid, the edge forming a shape corresponding to that of the lid, in which the outer surface is in contact with the crimp flange.
  • the article is in particular an article capable of being subjected to a pressure, a component of which exerts a force on the cover on a surface opposite to the surface of the corner on which the part of the corner is crimped, that part of the corner. corner then exerting a force opposite to that exerted by the pressure component.
  • the invention also relates to a heat exchanger comprising a crimped article as described above, the cover being an air box or a water box and the crimping flange a manifold.
  • the invention also relates to a charge air cooler comprising a heat exchanger as described above.
  • the invention also relates to an exhaust gas recirculation system comprising a heat exchanger as described above.
  • a crimped article according to the present invention is hereinafter described with reference to figures 1 to 7 .
  • the crimped article 1 comprises a cover 2, a crimping flange 3 and optionally a receptacle 4.
  • the cover 2 (generally comprising side walls and a surface) has a corner 21.
  • the corner 21 generally has two side walls 25 (in particular forming part of two adjacent side walls of the cover 2) and a surface 22 (in particular forming part of the cover surface 2). Seen from above (i.e. in a direction normal to the surface of wedge 21), the two side walls 25 of wedge 21 form an angle of less than 180 °.
  • the corner can be rounded or chamfered, i.e. the transition between the two walls, seen from above, is an arc of a circle preferably having a radius of 4 ⁇ 2 mm (forming the periphery 23 of the corner), or a chamfer preferably having a length of 4 ⁇ 2 mm.
  • the cover 2 is preferably made of plastic or metal, for example aluminum or steel.
  • the surface of the corner 2 is hollow, preferably concave, onto which the crimped part of the corner 311 is crimped.
  • the corner 2 is preferably rounded by an arc of a circle of radius R1.
  • the concave hollow surface advantageously has a shape chosen so that a line on the concave hollow surface 22 marked by a free edge of the crimped part of the corner 311 thereon has a length equal to ⁇ 20 % of the length of the circular arc of radius R1 forming the rounding of the corner.
  • the material of the crimped portion of the corner 311 exhibits an elongation or compression of ⁇ 20% at this level.
  • FIG. 6 An example of such a shape is illustrated by the figure 6 .
  • the concave hollow surface corresponds to the surface of a sphere with a radius R2 equal to ⁇ 20%, preferably to ⁇ 10%, more preferably to ⁇ 5%, of the radius R1, always preferably to approximately R1.
  • the point of lowest level is located in the middle of the arc of a circle of radius R1.
  • the cover 2 may have a contour 24 of which the corner 21 forms part.
  • the crimping flange 3 Before crimping, has at least one corner 31 , the shape of which corresponds to the combined shape of the two side walls 25 of the corner 21 of the cover 2.
  • the corner 31 comprises two internal walls forming an angle corresponding to that formed by the side walls of corner 2.
  • the corner can be rounded when the corner is rounded, ie the transition between the two walls of the corner forms an arc of circle corresponding to that of the corner, preferably of radius 4 ⁇ 2 mm.
  • the corner can still be chamfered when the corner is chamfered, ie the transition is a chamfer corresponding to that of the corner, preferably of width 4 ⁇ 2 mm.
  • a part of the corner of the crimping flange 3 is crimped on the surface 22 of the corner 21 of the cover 2.
  • the crimping flange 3 can have a cylindrical wall of which the part of the corner 311 intended to be crimped and corresponding to the contour 24 of the cover forms part and after crimping a part of the cylindrical wall is at least partially crimped. , preferably in its entirety, on the contour 24 of the cover.
  • the crimping flange 3 may include a first coupling end 32 to the cover 2, of which the corner 31 is a part, and a second coupling end 33 to another element, such as the receptacle 4, in order to secure the cover 2 to this other element.
  • the first coupling end 32 may include a folded portion 321 on the cover 2 after crimping and a contact portion 322 in contact with the side walls of the cover 2.
  • the boundary between the folded portion 321 and the contact portion 322 is generally parallel to the mean plane of the first coupling end 32, this limit marks the bending of the folded part 321 with respect to the contact part 322.
  • the line normal to the folded part 321 and that to the part of contact 322 are preferably mutually orthogonal, with the possible exception of the corner or corners.
  • the notch 31 is retained in the contact portion 322 during crimping and deformed only in the folded portion 321.
  • the crimping flange 3 is preferably made of metal, for example aluminum or steel.
  • the folded-back part 321 of the crimping flange 3 can cover the cover 2 over all or part of its contour 24.
  • the entire contour must be understood as all along the contour and “part of the contour” as meaning. with one or more sections of the contour which are not concerned.
  • the crimping 322 can be performed on everything (lower part of the figure 5 ) or part (upper part of the figure 5 ) of the folded part 321 of the crimping flange 3.
  • the crimping 322 can not be performed over the entire folded part 321 unless the latter covers the cover 2 over its entire contour 24.
  • the crimping 322 is of preferably carried out at regular intervals.
  • the outline 24 of the cover 2 is preferably polygonal, for example regularly polygonal, preferably rectangular.
  • the rounding of the corners is not taken into account for the description of the general shape of the contour of the cover, the rounded corners being assimilated to the angles of the general shape.
  • the folded-down part 321 comprises as many crimped parts 311 with corners as the contour 24 of the cover has corners 21.
  • the folded-down part 321 of the crimping flange 3 When the folded-down part 321 of the crimping flange 3 partially covers the cover 2 along its contour 24, the latter may for example comprise crimped sections 3221 to the contour 24 of the cover and separated from each other by a space, in particular when, before crimping, the first coupling part 32 of the crimping flange 3 has a crimped shape.
  • the separate sections can have widths, ie the dimension taken in the direction of separation, different or equal, preferably equal.
  • the folded part 321 of the crimping flange 3 comprises sections corresponding to the sides of the polygon and the lengths of which are substantially equal to the length of the corresponding sides of the polygon and separated from the parts. set with corner 311 by a space.
  • the sections can each be crimped over all or part of their length. If they are crimped over part of their length, the crimping is preferably carried out at regular intervals.
  • the crimping can be carried out continuously over the entire contour 24 or over only a part, in particular at regular intervals.
  • the crimped part of the corner 311, where appropriate the folded part 321 of the crimping flange 3 has a constant thickness.
  • the first coupling end 32 of the crimping flange preferably has a constant thickness.
  • the assembly of the crimping flange 3 has a constant thickness, ie including the second part of coupling.
  • the thickness of the crimping flange 3 is its smallest dimension: it is that which is perpendicular to the surface of the cover when once crimped, and possibly to that of the receptacle 4, to which the crimping flange 3 is coupled.
  • this constant thickness is between 0.8 mm and 3 mm.
  • the receptacle 4 generally has an edge having an exterior surface and an interior surface.
  • the inner surface of the edge defines an inner space covered by the cover 2.
  • the edge draws a shape corresponding to that of the cover 2.
  • the outer surface of the edge is in contact with the crimping flange 3, in particular with its second coupling end 33 .
  • the crimping flange 3 encloses the outer surface and is preferably secured thereto by brazing and / or welding.
  • article 1 is an article capable of being subjected to a pressure, one component of which exerts a force F f on a surface of the cover opposite to the surface of the corner 21 on which the crimped part of the corner is crimped. 311, this crimped part of the corner 311 then exerting a force F e opposite to that exerted by the component of the pressure.
  • Such an article is for example a heat exchanger 1 which conventionally comprises the elements mentioned in the introduction above, in the part describing the state of the art.
  • the crimping flange 3 corresponds to the manifold, the cover 2 to an air box (as on the figure 7 ) or a water box and, if applicable, the receptacle 4 in the heat exchanger bundle casing.
  • Such an exchanger is advantageously used for a charge air cooler or an exhaust gas recirculation system.

Landscapes

  • 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)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Claims (13)

  1. Gefalzter Artikel, der Folgendes umfasst:
    - einen Deckel (2), der eine Ecke (21) aufweist;
    - einen Falzflansch (3), der vor dem Falzen wenigstens eine innere Ecke (31) aufweist, deren Form jener der Ecke (21) des Deckels entspricht; wobei ein Teil (311) der inneren Ecke des Falzflansches (3) auf einer Oberfläche (22) der Ecke (21) des Deckels (2) gefalzt ist, dadurch gekennzeichnet, dass die Oberfläche (22) der Ecke (21) hohl ist.
  2. Gefalzter Artikel nach Anspruch 1, wobei die Ecke (21) einen Umfang (23) aufweist, dessen Form ein Kreisbogen mit Radius R1 ist.
  3. Gefalzter Artikel nach einem der vorhergehenden Ansprüche, wobei die hohle Oberfläche (22) konkav ist.
  4. Gefalzter Artikel nach Anspruch 3, wobei die konkave hohle Oberfläche (22) eine Form aufweist, die so gewählt ist, dass eine Linie auf der konkaven hohlen Oberfläche, die durch einen freien Rand des gefalzten Teils (311) der inneren Ecke an der Ecke (21) eine Länge besitzt, die bis auf ±20 % gleich der Länge des Kreisbogens mit Radius R1, der den Umfang (23) der Ecke bildet, ist.
  5. Gefalzter Artikel nach Anspruch 4, wobei die konkave hohle Oberfläche (22) die Oberfläche einer Kugel ist, deren Radius R2 bis auf ±20 %, vorzugsweise ±10 %, stärker bevorzugt ±5 % gleich dem Radius R1 ist und noch stärker bevorzugt ungefähr gleich R1 ist.
  6. Gefalzter Artikel nach Anspruch 5, wobei ein Pol der Kugel mit Radius R2 der Mitte des Kreisbogens mit Radius R1 entspricht.
  7. Gefalzter Artikel nach einem der Ansprüche 1 bis 6, wobei der Deckel (2) einen Umriss (24) aufweist, wovon die Ecke (21) einen Teil bildet, wobei der Falzflansch (3) vor dem Falzen eine zylindrische Wand aufweist, wovon jener Teil (311) der inneren Ecke, der dazu bestimmt ist, gefalzt zu werden, und dem Umriss (24) des Deckels entspricht, einen Teil bildet, wobei nach dem Falzen ein Teil der zylindrischen Wand wenigstens teilweise, vorzugsweise als Ganzes, auf den Umriss (24) des Deckels gefalzt wird.
  8. Gefalzter Artikel nach einem der Ansprüche 1 bis 7, wobei der gefalzte Teil (311) der inneren Ecke eine konstante Dicke aufweist.
  9. Gefalzter Artikel nach einem der Ansprüche 1 bis 8, der außerdem einen Aufnahmebehälter (4) umfasst, der einen Rand aufweist, der eine äußere Oberfläche und eine innere Oberfläche aufweist, wobei die innere Oberfläche des Randes einen Innenraum begrenzt, der durch den Deckel (2) abgedeckt ist, wobei der Rand eine Form definiert, die jener des Deckels (2) entspricht, wobei die äußere Oberfläche mit dem Falzflansch in Kontakt ist.
  10. Gefalzter Artikel nach einem der Ansprüche 1 bis 9, wobei der Artikel ein Artikel ist, der einem Druck unterworfen werden kann, wovon eine Komponente eine Kraft auf den Deckel (2) auf einer Fläche ausübt, die der Fläche jener Ecke gegenüberliegt, auf die der gefalzte Teil (311) der inneren Ecke gefalzt ist, wobei dieser Teil der inneren Ecke (31) dann eine Kraft ausübt, der jener entgegengesetzt ist, die durch die Komponente des Drucks ausgeübt wird.
  11. Wärmetauscher (1), der einen gefalzten Artikel nach einem der Ansprüche 1 bis 10 umfasst, wobei der Deckel (2) ein Luftkasten oder ein Wasserkasten ist und der Falzflansch (3) ein Sammler ist.
  12. Luftladekühler, der einen Wärmetauscher (1) nach Anspruch 11 umfasst.
  13. Abgasrückführungssystem, das einen Wärmetauscher (1) nach Anspruch 11 umfasst.
EP17764429.1A 2016-09-14 2017-08-22 Gecrimpter artikel mit gecrimpten ecken Active EP3513138B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1658571A FR3055821B1 (fr) 2016-09-14 2016-09-14 Article serti a coins sertis
PCT/FR2017/052257 WO2018050977A1 (fr) 2016-09-14 2017-08-22 Article serti à coins sertis

Publications (2)

Publication Number Publication Date
EP3513138A1 EP3513138A1 (de) 2019-07-24
EP3513138B1 true EP3513138B1 (de) 2021-03-03

Family

ID=57348944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17764429.1A Active EP3513138B1 (de) 2016-09-14 2017-08-22 Gecrimpter artikel mit gecrimpten ecken

Country Status (4)

Country Link
EP (1) EP3513138B1 (de)
CN (1) CN110121627B (de)
FR (1) FR3055821B1 (de)
WO (1) WO2018050977A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3095504B1 (fr) * 2019-04-25 2021-04-02 Valeo Systemes Thermiques Echangeur de chaleur avec sécurisation de la fixation au coin de boite.
DE102019210477A1 (de) * 2019-07-16 2021-01-21 Mahle International Gmbh Crimprahmen oder Crimpboden
FR3100877B1 (fr) * 2019-09-16 2021-08-06 Valeo Systemes Thermiques Echangeur de chaleur.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142413A (en) * 1962-08-14 1964-07-28 Reynolds Metals Co Container with flat hems at the corners thereof
US3516597A (en) * 1968-01-04 1970-06-23 Kaiser Aluminium Chem Corp Foil container
EP0054815A1 (de) * 1980-12-22 1982-06-30 Ford-Werke Aktiengesellschaft Verfahren zum Verbinden eines Gegenstandes mit einem Artikel
FR2822532B1 (fr) 2001-03-26 2003-06-27 Valeo Thermique Moteur Sa Echangeur de chaleur a joues laterales, en particulier pour vehicule automobile
DE102005008409A1 (de) * 2005-02-24 2006-08-31 Modine Manufacturing Co., Racine Wärmetauscher mit Rohren und Rippen sowie Herstellungsverfahren
JP4888644B2 (ja) * 2006-05-19 2012-02-29 東洋製罐株式会社 電子レンジ調理用包装体
DE102009053884A1 (de) 2009-11-20 2011-06-01 Behr Gmbh & Co. Kg Saugrohr für einen Verbrennungsmotor
FR2995379B1 (fr) * 2012-09-10 2014-09-05 Commissariat Energie Atomique Joint circulaire d'etancheite a brosse
US20150321799A1 (en) * 2014-05-08 2015-11-12 Multisteps Pty Ltd Produce container
FR3026166B1 (fr) * 2014-09-23 2019-09-13 Valeo Systemes Thermiques Echangeur de chaleur.

Also Published As

Publication number Publication date
CN110121627A (zh) 2019-08-13
FR3055821A1 (fr) 2018-03-16
FR3055821B1 (fr) 2019-11-08
EP3513138A1 (de) 2019-07-24
WO2018050977A1 (fr) 2018-03-22
CN110121627B (zh) 2021-11-30

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