EP0735337A1 - Wärmetauscher, insbesondere für Kraftfahrzeuge - Google Patents

Wärmetauscher, insbesondere für Kraftfahrzeuge Download PDF

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Publication number
EP0735337A1
EP0735337A1 EP96400649A EP96400649A EP0735337A1 EP 0735337 A1 EP0735337 A1 EP 0735337A1 EP 96400649 A EP96400649 A EP 96400649A EP 96400649 A EP96400649 A EP 96400649A EP 0735337 A1 EP0735337 A1 EP 0735337A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate
edges
longitudinal edges
exchanger 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.)
Withdrawn
Application number
EP96400649A
Other languages
English (en)
French (fr)
Inventor
Philippe Le Gauyer
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 Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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.)
Filing date
Publication date
Application filed by Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0735337A1 publication Critical patent/EP0735337A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—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
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for header boxes
    • 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 invention relates to heat exchangers, in particular for a motor vehicle, and more particularly those made of brazed or welded aluminum of the type comprising a fluid box assembled by crimping on a collecting plate with interposition of a seal.
  • the water box is usually provided with peripheral edges comprising an upper bearing face and intended to be housed at least partially in a peripheral U-shaped groove delimited at least in part by longitudinal edges of the collector plate. , said groove comprising a bottom and vertical front and rear faces. There are also provided crimping means intended to bear on said upper face of the peripheral edges, to immobilize the latter relative to the collector plate.
  • the crimping means are fixing lugs which project at the end of the longitudinal edges of the collector plate.
  • the fluid contained in the water box exerts a very high pressure on the walls of said box, which tends to cause the lateral edges of the box to move apart, although these are held by the fixing lugs .
  • This type of exchanger has the major drawback of requiring an additional device specially designed to position the clip and immobilize it.
  • an object of the invention is to provide a heat exchanger which does not have the drawbacks of the devices of the prior art.
  • the invention provides a heat exchanger of the type described in the introduction, in which at least two auxiliary plates are provided, each forming a reinforcement angle of one of the longitudinal edges of the collector plate and comprising a welded or brazed lower wing. , on a longitudinal edge, at least partially outside the bottom of the peripheral groove, and an upper wing substantially perpendicular to this lower wing and extending parallel to an external face delimiting the peripheral groove.
  • reinforcement angles at least partially welded or brazed to the collector plate makes it possible, on the one hand, to make the maximum pressure supported by the angle / collector plate edge couple, very significantly greater than the pressure exerted on said edge longitudinal of the collector plate by the fluid contained in the water box, and secondly, to allow the folding of the fixing lugs without bending of the longitudinal edges.
  • the longitudinal edges of the collector plate delimit the bottom and the external and internal faces of the peripheral groove and are extended by fixing lugs forming the crimping means, and the upper wing of each auxiliary plate is welded or brazed on the part of the longitudinal edges of the collector plate opposite the external face of the peripheral edges of the water box.
  • the auxiliary plates are, in this embodiment secured to the collector plate during the passage from the heat exchanger to the brazing or welding furnace.
  • the longitudinal edges are thus solidly reinforced, which makes it possible to avoid any bending, including during the step of folding the fixing lugs.
  • the peripheral groove is delimited by an assembly of the longitudinal edges of the collector plate and the auxiliary plates, said longitudinal edges delimiting the internal face and the bottom of said groove, and the upper wing auxiliary plates delimiting the external face of this groove.
  • At least one other fixing lug forming an extension of the lower wing of an auxiliary plate and intended to rest, after folding along a line substantially parallel to a longitudinal edge, on the part of the longitudinal edges opposite from the inner side of the peripheral throat.
  • the auxiliary plates are made of a material at least as resistant as that of the collector plate.
  • these auxiliary plates are made of an aluminum alloy of the type with structural hardening.
  • This type of alloy has much higher mechanical characteristics than the simple aluminum and manganese alloys used to manufacture the collector plates.
  • This alloy is for example based on aluminum, magnesium and silicon.
  • FIGS. 1 to 3 describe a first embodiment of the invention.
  • FIG. 1 is illustrated, in cross section, the upper part of a heat exchanger comprising a fluid box 1, generally made of rigid plastic, a metal collecting plate 2 and metal tubes 3 forming a bundle of tubes.
  • the fluid which circulates in the exchanger is water. Therefore, we will call the fluid box: water box.
  • the invention also applies to exchangers operating for example with oil or with a gas.
  • the tubes 3 are made of aluminum, or of a fairly ductile alloy comprising aluminum.
  • the collector plate is preferably made of an aluminum and manganese alloy belonging to the so-called "3000" series.
  • the tubes 3 and the collector plate 2 are joined by brazing, or by welding in an oven, under an inert atmosphere, using a stream of potassium fluoaluminates.
  • the water box 1 comprises a shaped wall 4 intended to receive the water.
  • This wall 4 comprises on its periphery peripheral edges 5 forming beads, comprising an upper support face 6, an internal face 7, an external face 8 and a lower face 9.
  • the collector plate 2 comprises a central part provided with openings 10 allowing passage of the ends of the tubes 3, and on either side of this central part, longitudinal edges 11 shaped before assembly of the exchanger.
  • the longitudinal edges 11 comprise an internal wall 12 extending substantially perpendicularly to the central part, a lower wall 13 extending the internal wall substantially perpendicularly, so that this lower wall is substantially parallel to the central part, and an external wall 14 extending the bottom wall 13 substantially perpendicularly, so that this wall is substantially parallel and facing the internal wall 12.
  • the internal, external and lower walls of the longitudinal edges 11 thus respectively delimit the internal faces 15, external 16 and the bottom 17 of a peripheral U-shaped groove 18 which extends over the entire periphery of the collecting plate 2 and intended to receive at least partially the peripheral edges 5 of the water box 1.
  • the peripheral groove 18 has a cross section of shape substantially homologous to that of the peripheral edges, but of slightly larger dimensions to allow the interposition in the bottom of the groove of a seal 19.
  • This seal 19 is made of a deformable and waterproof material, for example of elastomer. It is arranged in the peripheral groove 18 in contact with the lower 13 and inner 12 walls of the longitudinal edges 11.
  • the outer wall 14 of the longitudinal edges is extended at its end by fixing lugs 20 produced by prior cutting of the collecting plate 2.
  • These fixing lugs 20 are intended to be folded inwards along an axis XX substantially parallel to a longitudinal edge, so that they bear on the upper support face 6 of the peripheral edges 5, thus immobilizing , under compression, said peripheral edges 5 inside the peripheral groove 18.
  • the intensity of the compression can be adjusted by moving the position of the folding axis XX relative to the line of intersection between the fixing lugs 20 and the external wall 14.
  • the axis X-X coincides with this line of intersection between the fixing lugs 20 and the external wall 14.
  • the invention provides auxiliary reinforcement plates 21, forming angles.
  • auxiliary plates 21 comprise a lower wing 22 extended substantially perpendicularly by an upper wing 23. They are made of a material at least as strong as that of the collector plate 2.
  • the material used is an aluminum alloy, magnesium and silicon of the so-called "6000" series with structural hardening, which has higher mechanical characteristics than the alloys of the 3000 series.
  • the angle iron 21 has a longitudinal extension substantially equal to that of a longitudinal edge 11.
  • the lower wing 22 has at least the same extension as the lower wall of a longitudinal edge 11, and the upper wing 23 s 'extends to the fold line XX of the external wall 14 of this same longitudinal edge 11.
  • the lower wing 22 is brazed on the external face of the lower wall 13 with a longitudinal edge 11, while the upper wing 23 is brazed on the external face of the external wall 14 of this same edge 11.
  • the brazing of the angles is carried out at the same time as the brazing of the tubes 3 on the collector plates 2.
  • the maintenance of these angles can be carried out, before passage in the furnace, by crimping using fixing tabs, or by welding. by points.
  • FIGS. 4 to 7 describe a second embodiment of the invention.
  • the water box 1, the central part of the collector plate 2, the tubes 3, the seal 19, and the edges 5 of the water box are identical to the elements which respectively carry the same names in the first embodiment described above and illustrated in Figures 1 to 3. Only the embodiment of the peripheral groove differs from the first mode, although the latter retains substantially the same shape.
  • the central part of the collector plate 2 is extended on either side by longitudinal edges 30.
  • Each edge comprises an internal wall 31 extending substantially perpendicularly the central part 2, and a bottom wall 32 extending the internal wall 31 substantially perpendicular, so that this bottom wall 32 is substantially parallel to the central part 2 of the collector plate.
  • Each edge thus delimits the internal face 15 and the bottom of a peripheral U-shaped groove 18 which extends over the entire periphery of the collecting plate 2 and intended to at least partially receive the peripheral edges 5 of the water box 1.
  • an auxiliary plate 33 comprising an upper wing 34 extended substantially perpendicularly by a lower wing 35.
  • the auxiliary plate 34 thus forms an angle.
  • the upper wing 34 has an extension substantially identical to that of the internal wall 31 of the longitudinal edges 30, and has in its lower part, just above the connection with the lower wing 35, a plurality of rectangular openings 36 intended to receive the ends 37 of the lower wall 32 of the longitudinal edges 30.
  • ends 37 extend the lower wall 32, and have a shape substantially homologous to that of the openings made in the upper wing 34 of the angles. They are made by cutting before assembly.
  • the openings 36, and the ends 37 with which they cooperate, are preferably arranged substantially at the ends of the longitudinal edges 30, and at the center of these same longitudinal edges, in order to allow a homogeneous distribution of the stresses exerted by the peripheral edges 5 on the 'upper wing delimiting the external face of the peripheral groove 18.
  • the auxiliary plates 33 are made of a material at least as strong as that of the collector plate 2.
  • this material is an alloy of aluminum, magnesium and silicon of the series called "6000" with structural hardening, which has higher mechanical properties than alloys in the 3000 series.
  • the peripheral groove 18 is therefore produced by assembling the longitudinal edges 30 and the angles 33, by introducing, during said assembly, the ends 37 of the lower walls 32 of the longitudinal edges 30 in the openings 36 of the angles 33.
  • the lower wing 35 of the angles 33 is brazed or welded to the external face of the lower wall 32 of the longitudinal edges 30. This brazing is carried out at the same time as the brazing tubes 3 on the collector plate 2, when passing through the oven.
  • each angle iron 33 is extended by a plurality of fixing lugs 38 produced by cutting the collecting plate 2 before assembly.
  • These fixing lugs 20 are intended to be folded inwards along an axis XX substantially parallel to a longitudinal edge, so that they rest on the upper support face 6 of the peripheral edges 5, thus immobilizing, under compression, said peripheral edges 5 inside the peripheral groove 18.
  • the intensity of the compression can be adjusted as a function of the positioning of the folding axis XX relative to the line of intersection between the fixing lugs 20 and the upper wing 34.
  • the intensity of the compression can be adjusted by moving the position of the folding axis X-X relative to the line of intersection between the fixing lugs 38 and the upper wing 34.
  • the axis X-X coincides with this line of intersection between the fixing lugs 38 and the upper wing 34.
  • the fixing lugs 38 are shown, in Figures 5 and 6, in their position before folding.
  • These lugs fixing 39 are intended to be folded along an axis YY substantially parallel to the longitudinal edges 30, so that these fixing lugs 39 bear on the external face of the internal wall 31 of the longitudinal edges 30.
  • the fixing lugs 39 are shown in their folded position, in solid lines, in Figures 6 and 7, while they are also shown in their position before folding, in broken lines, in Figure 6 only.
  • Such fixing lugs have the advantage of immobilizing the assembly of the longitudinal edges 30 and of the angles 33 before passage to the oven, as well as of reinforcing said assembly a little more. During this same passage in the oven, provision may also be made for the fixing lugs 39 to be welded to the internal walls 31.
  • the peripheral groove is produced by assembling the longitudinal edges of the collector plate and the auxiliary plates, the end of the longitudinal edges being extended by fixing lugs. which would come to rest, after folding, on the outside of the upper wing of the auxiliary plates. This would further strengthen the assembly, and / or avoid the use, for the manufacture of auxiliary plates, of material from the 6000 series with structural hardening.
EP96400649A 1995-03-27 1996-03-27 Wärmetauscher, insbesondere für Kraftfahrzeuge Withdrawn EP0735337A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9503564 1995-03-27
FR9503564A FR2732454B1 (fr) 1995-03-27 1995-03-27 Echangeur de chaleur, notamment pour vehicule automobile

Publications (1)

Publication Number Publication Date
EP0735337A1 true EP0735337A1 (de) 1996-10-02

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EP96400649A Withdrawn EP0735337A1 (de) 1995-03-27 1996-03-27 Wärmetauscher, insbesondere für Kraftfahrzeuge

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EP (1) EP0735337A1 (de)
FR (1) FR2732454B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779489B1 (de) * 1995-12-13 2003-04-16 Valeo Thermique Moteur S.A. Wärmetauscher und Endplatte für einen Wärmetauscher
WO2006005449A1 (de) * 2004-07-12 2006-01-19 Behr Gmbh & Co. Kg Wärmetauscher, insbesondere ladeluftkühler
EP1811259A1 (de) * 2006-01-19 2007-07-25 Behr GmbH & Co. KG Befestigungsanordnung für Wärmeübertrager
CN110392816A (zh) * 2016-12-19 2019-10-29 法雷奥热系统公司 带有加强板的热交换器
US11073345B2 (en) 2018-10-31 2021-07-27 Hanon Systems Heat exchanger header with stiffening element
CN113530664A (zh) * 2020-04-16 2021-10-22 马勒国际有限公司 间接增压空气冷却器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2927987B1 (fr) * 2008-02-27 2014-01-10 Valeo Systemes Thermiques Plaque collectrice renforcee pour echangeur de chaleur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472734A1 (fr) * 1979-12-29 1981-07-03 Sueddeutsche Kuehler Behr Perfectionnements apportes aux echangeurs de chaleur notamment pour radiateurs de vehicules automobiles
JPS58224298A (ja) * 1982-06-21 1983-12-26 Nippon Denso Co Ltd 熱交換器
FR2558246A1 (fr) * 1984-01-12 1985-07-19 Chausson Usines Sa Echangeur de chaleur a boites a eau et plaques collectrices reliees mecaniquement
US4899815A (en) * 1989-02-23 1990-02-13 Modine Manufacturing Co. Tank retaining strip for heat exchangers
JPH03225197A (ja) * 1990-01-31 1991-10-04 Showa Alum Corp 熱交換器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472734A1 (fr) * 1979-12-29 1981-07-03 Sueddeutsche Kuehler Behr Perfectionnements apportes aux echangeurs de chaleur notamment pour radiateurs de vehicules automobiles
JPS58224298A (ja) * 1982-06-21 1983-12-26 Nippon Denso Co Ltd 熱交換器
FR2558246A1 (fr) * 1984-01-12 1985-07-19 Chausson Usines Sa Echangeur de chaleur a boites a eau et plaques collectrices reliees mecaniquement
US4899815A (en) * 1989-02-23 1990-02-13 Modine Manufacturing Co. Tank retaining strip for heat exchangers
JPH03225197A (ja) * 1990-01-31 1991-10-04 Showa Alum Corp 熱交換器

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 080 (M - 289) 12 April 1984 (1984-04-12) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 513 (M - 1196) 26 December 1991 (1991-12-26) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779489B1 (de) * 1995-12-13 2003-04-16 Valeo Thermique Moteur S.A. Wärmetauscher und Endplatte für einen Wärmetauscher
WO2006005449A1 (de) * 2004-07-12 2006-01-19 Behr Gmbh & Co. Kg Wärmetauscher, insbesondere ladeluftkühler
US7775266B2 (en) 2004-07-12 2010-08-17 Behr Gmbh & Co. Kg Heat exchanger, especially for an intercooler
EP1811259A1 (de) * 2006-01-19 2007-07-25 Behr GmbH & Co. KG Befestigungsanordnung für Wärmeübertrager
CN110392816A (zh) * 2016-12-19 2019-10-29 法雷奥热系统公司 带有加强板的热交换器
US11073345B2 (en) 2018-10-31 2021-07-27 Hanon Systems Heat exchanger header with stiffening element
CN113530664A (zh) * 2020-04-16 2021-10-22 马勒国际有限公司 间接增压空气冷却器

Also Published As

Publication number Publication date
FR2732454B1 (fr) 1997-05-09
FR2732454A1 (fr) 1996-10-04

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