EP0597767B1 - Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge - Google Patents

Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge Download PDF

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Publication number
EP0597767B1
EP0597767B1 EP19930402734 EP93402734A EP0597767B1 EP 0597767 B1 EP0597767 B1 EP 0597767B1 EP 19930402734 EP19930402734 EP 19930402734 EP 93402734 A EP93402734 A EP 93402734A EP 0597767 B1 EP0597767 B1 EP 0597767B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
cheeks
clipping
tubes
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19930402734
Other languages
English (en)
French (fr)
Other versions
EP0597767A1 (de
Inventor
Bernard Levy
Dany Boquel
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 EP0597767A1 publication Critical patent/EP0597767A1/de
Application granted granted Critical
Publication of EP0597767B1 publication Critical patent/EP0597767B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention relates to a heat exchanger comprising water boxes connected by uprights, intended in particular for motor vehicles and in particular heavy goods vehicles.
  • heat exchangers of this type which include a bundle of tubes mounted between two boxes water as well as two uprights each connecting the two boxes to water, in which each upright is provided at each end a pair of opposite cheeks suitable for enclosing two walls opposite support of one of the water boxes, and in which each cheek is provided with at least one opening suitable for being arranged opposite a bore in the support wall for the installation of a fixing member.
  • the two uprights usually have a U-shaped cross section and they extend in directions parallel to those of the tubes of the beam so as to frame it.
  • the fixing the uprights on the water boxes can be particular pins, as taught by the document EP-A-0 115 795, screws engaging holes tapped with metal water boxes as taught by the document EP-A-0 112 251, or self-tapping screws in case the water boxes are made of plastic molded, as taught by document EP-A-504034.
  • This type of exchanger has the drawback, on the one hand, lead to a complicated mounting of the upright because it is necessary to ensure simultaneous fastening means and snap projections and, on the other hand, to have protrusions of great heights which are thereby weakening and may break during handling of the exchanger for implementation of the uprights.
  • the object of the invention is in particular to remedy the drawbacks cited above.
  • each latching projection is formed in relief on a boss formed itself projecting from the support wall and located overhanging by relation to the peripheral border and in which the organ of fixing consists of a screw passing through the opening and cooperating with a bore opening into the boss.
  • Snap projections and corresponding recesses are placed in places judiciously chosen for that, in their positions of mutual cooperation, the cheek openings face the bores corresponding to the support walls of the water boxes.
  • the cheeks of the same pair constitute a kind of U-shaped fork, just spread them slightly to facilitate the installation of the uprights up to their location final, in which the cheeks can be again close together, and in which the openings cheeks coincide with the bores of the support walls.
  • the uprights are then correctly positioned and there then just put in place the fasteners which can be, for example, self-tapping screws.
  • each of the two water boxes has two pairs of latching projections opposite, provided respectively on two parts end of the water box.
  • each latching projection forms a ramp, so that two opposite latching projections allow the progressive separation of the two opposite cheeks then their bringing together when the two projections have penetrated in the recesses of the two cheeks.
  • each projection has substantially the shape of a T, a first branch extends in a direction parallel to that of bundle tubes and a second branch of which extends into a direction perpendicular to that of the bundle tubes.
  • This second branch advantageously includes a ramp which gradually rises from the support wall in direction of the first branch.
  • the recesses cheeks which enclose one of the water boxes have, at less in a direction parallel to that of the tubes, a dimension larger than that of the latching projections of so as to allow positioning with movement of the amounts on this water box.
  • This travel allows to take into account the differences of expansion undergone by the bundle tubes.
  • the corresponding recess advantageously has a general trapezoidal shape with a large extending base parallel to the first branch of the T and having a dimension greater than this.
  • the recesses of the cheeks which enclose the other water box have dimensions adapted to those of the latching projections to allow positioning without deflection of the amounts on this water box.
  • the heat exchanger partially shown in the figure 1 comprises a bundle 10 formed of a multiplicity of tubes 12, of parallel axes, crossing a multiplicity of fins 14.
  • the bundle 10 is mounted between two water boxes 16 and 18 located respectively in the upper part and in part bottom of the heat exchanger.
  • the water box 16 comprises a box 20 molded from material plastic which has a peripheral border 22 delimiting an open rectangular face and used to maintain a collector plate 24, also called "hole plate", sealing at the upper ends of the tubes 12.
  • the water box 18 has a molded case 26 with a peripheral edge 28 on which fits a header plate 30 crossed sealing by the lower ends of the tubes 12.
  • the water box 16 includes a first end block 32 located on the left side of Figure 1 and an end block symmetrical not visible in Figure 1.
  • the water box 18 comprises a block end 34 located on the left side of Figure 1 and a block symmetrical end located on the right side and not visible on Figure 1.
  • the end blocks 32 and 34 are used in particular for the fixing an amount 36 which allows to connect the two boxes water.
  • the heat exchanger also includes another upright, not visible in Figure 1 and used to connect the two other respective end blocks of the water boxes 16 and 18.
  • the amount 36 extends in a direction parallel to that of the beam tubes and it includes a core 38 on which two wings 40 depend so to constitute a U-shaped profile coming to frame the bundle 10.
  • the upright 36 is provided with a first pair of cheeks 42 for its attachment to the block 32 of the water box 16 and a second pair of cheeks 44 for its attachment to block 34 of the water box 18.
  • the two cheeks 42 are parallel between and intended to enclose the block 32 and the cheeks 44 are parallel to each other to enclose the block 34.
  • the cheeks 42 and the cheeks 44 can be formed in one piece with amount 38 or be reported on the latter.
  • the two cheeks 42 each have two openings 48 of oblong shape whose major axis extends in one direction parallel to that of the tubes 10 and which are intended to come respectively opposite two holes 50 formed in one of two opposite bearing walls 52 that the block comprises 32.
  • Each of the cheeks 42 is fixed to the block 32 by means of two self-tapping screws 54 as shown in the Figure 2.
  • Each of the screws 54 includes a hexagonal head 56 with a flange 58, a ring 60 and a threaded rod self-drilling machine 62.
  • the ring 60 has a smaller external diameter to the smallest dimension of opening 48 to allow limited travel of the cheeks 42 relative to the block end 32.
  • the two cheeks 44 are each provided with two openings circular 64 suitable for being arranged respectively in vis-à-vis two holes 66 formed in one of two support walls 68 that comprises the end block 34 of the water box 18.
  • the attachment of each of the wings 44 is carried out, as shown in figure 3, by two self-tapping screws 54 identical to those of FIG. 2.
  • the circular openings 64 have an internal diameter less than the diameter of the ring 60 of the screw 54, so that there is no travel of the cheeks 44 relative to the block 34.
  • each of the two support walls opposite 52 of the water box 16 includes a projection latching 70 suitable for being inserted into a recess 72 of the corresponding cheek 42 so as to ensure a prior positioning of the cheeks 42 and therefore of the upright by compared to the water box 16, before installing the screws self-tapping 54.
  • Each of the two support walls 68 of the water box 18 includes a snap projection 74 suitable for insertion in a recess 76 of the corresponding cheek 44 of so as to ensure a prior positioning of the cheeks 44, and therefore the amount 36, before fitting the self-tapping screws 54.
  • the openings 64 correspond to bores 66.
  • the latching projection 70 has a first branch 70-1 and a second branch 70-2 extending respectively in one direction parallel and in a direction transverse to that of beam tubes 12.
  • the latching projection 74 has a first branch 74-1 and a second branch 74-2 which extend respectively in a parallel direction and in a direction transverse to that of the tubes 12.
  • the recess 72 has a generally trapezoidal shape with a large base 78 which extends in the direction of the branch 70-1 and which is longer than the latter to allow limited cheek clearance 42 by relative to block 32 in a direction parallel to that of tubes.
  • each of the cheeks 44 has a generally rectangular shape with one side 80 which extends parallel to branch 74-1 and which is substantially of same length as the latter, to avoid any possibility of travel.
  • the projection latching 70 is here formed in relief on a boss 82 generally planar and extending overhanging the peripheral edge 22 of the water box 16. Both holes 50 open into the boss 82 which serves to support one of the cheeks 42.
  • the second branch 70-2 of the latching projection 70 forms a ramp which rises gradually from the wall support as we approach the first branch 70-1.
  • the ramps thus offered by two opposite projections 70 facilitate the separation of the two cheeks 42 until penetration of the two projections 70 in the two corresponding recesses 72.
  • each of the cheeks 42 is connected to the wing corresponding 40 of the amount 36 by a step 84, as shown on the right side of Figure 6.
  • the spacing of the two cheeks 42 must be greater than that of the two wings 40 of the upright 36 and therefore greater than the width of the upright.
  • the invention makes it possible to position the the two uprights connecting the two water boxes a heat exchanger, thus ensuring maintenance provisional of the two amounts.
  • the invention finds a whole application specific to large heat exchangers such as truck exchangers whose uprights can reach a length greater than 1.20 m.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (8)

  1. Wärmetauscher vom Typ mit einem Bündel (10) aus Rohren (12), die zwischen zwei Wasserkästen (16,18) montiert sind, sowie zwei Verstrebungen (36), die beide jeweils die zwei Wasserkästen miteinander verbinden, wobei jede Verstrebung (36) an beiden Enden mit jeweils zwei gegenüberliegenden Seitenteilen (42,44) versehen ist, die jeweils zwei gegenüberliegende Stützwandungen (52,68) eines der Wasserkästen einspannen, und wobei jedes Seitenteil (42,44) mit wenigstens einer Öffnung (48,64) versehen ist, die ein Befestigungsteil aufnehmen kann, wobei jede Stützwandung (52,68) eine Rastnase (70,74) aufweist, die in eine Aussparung des der Verstrebung zugeordneten Seitenteils eingeführt werden kann, so dass eine Vorpositionierung der Verstrebung vor der Anbringung der Befestigungsteile gewährleistet ist, wobei beide Wasserkästen (16,18) einen umlaufenden Rand (22,28) aufweisen, an dem eine Sammelplatte (24,30) befestigt werden kann, die dicht von den Rohren eines Bündels durchquert wird, dadurch gekennzeichnet, dass jede Rastnase (70,74) aus einem Vorsprung (82) herausragt, der sich seinerseits von der Stützwandung (52) abhebt und über den umlaufenden Rand (22) hinausragt, und dass das Befestigungsteil (54) aus einer Schraube gebildet ist, die die Öffnung (48,64) durchquert und in eine Gewindebohrung (50,66) geschraubt wird, deren Mündungsöffnung sich in dem Vorsprung (82) befindet.
  2. Wärmetauscher gemäß dem Anspruch 1, dadurch gekennzeichnet, dass jeder Wasserkasten (16,18) zwei Paare sich gegenüberliegender Rastnasen (70,74) aufweist, die an dem einen bzw. dem anderen Endbereich (32,34) des Wasserkastens (16,18) vorgesehen sind.
  3. Wärmetauscher gemäß einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass jede Rastnase (70,74) eine Schräge bildet, derart, dass zwei gegenüberliegende Rastnasen zunächst eine zunehmende Entfernung und anschließend, sobald die zwei Rastnasen in die Aussparungen eingedrungen sind, eine Annäherung der zwei Seitenteile erlaubt.
  4. Wärmetauscher gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass jede Rastnase (70,74) im wesentlichen die Form eines T aufweist, dessen Querteil (70-1,74-1) parallel und dessen Steg (70-2, 74-2) senkrecht zur Richtung der Rohre des Bündels verläuft.
  5. Wärmetauscher gemäß dem Anspruch 4, dadurch gekennzeichnet, dass der Steg eine Schräge ausgebildet hat, die von der Stützwandung zum Querteil hin zunehmend ansteigt.
  6. Wärmetauscher gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Aussparungen (72) der Seitenteile (42), die einen (16) der Wasserkästen einspannen, wenigstens in einer zu den Rohren (10) parallelen Richtung größer sind als die Rastnasen (70), was eine verschiebbare Positionierung der Verstrebungen (36) an diesem Wasserkasten (16) erlaubt.
  7. Wärmetauscher gemäß dem Anspruch 6, bei dem jede Rastnase (70) die in Anspruch 4 definierte Form hat, dadurch gekennzeichnet, dass die entsprechende Aussparung (76) allgemein trapezförmig gestaltet ist, mit einer großen Basis (78), die parallel zu dem Querteil (70-1) ausgerichtet und größer ist als dieses.
  8. Wärmetauscher gemäß dem Anspruch 6, dadurch gekennzeichnet, dass die Aussparungen (76) der Seitenteile (44), die den anderen Wasserkasten (18) einspannen, Abmessungen aufweisen, die an die entsprechenden Rastnasen (70) angepasst sind, um eine Positionierung ohne Verschieben der Verstrebungen (36) an diesem Wasserkasten zu ermöglichen.
EP19930402734 1992-11-09 1993-11-08 Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge Expired - Lifetime EP0597767B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9213489 1992-11-09
FR9213489A FR2697907B1 (fr) 1992-11-09 1992-11-09 Echangeur de chaleur à boîtes à eau reliées par des montants, notamment pour véhicule automobile.

Publications (2)

Publication Number Publication Date
EP0597767A1 EP0597767A1 (de) 1994-05-18
EP0597767B1 true EP0597767B1 (de) 2001-01-24

Family

ID=9435380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930402734 Expired - Lifetime EP0597767B1 (de) 1992-11-09 1993-11-08 Wärmetauscher mit, mit Stützen verbundenen, Wasserkästen insbesondere für Fahrzeuge

Country Status (3)

Country Link
EP (1) EP0597767B1 (de)
DE (1) DE69329892T2 (de)
FR (1) FR2697907B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29822378U1 (de) * 1998-12-16 1999-02-25 Längerer & Reich GmbH, 70794 Filderstadt Wasser/Luft-Kühler
DE19950753A1 (de) * 1999-10-21 2001-04-26 Modine Mfg Co Kühlanlage I

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538030A1 (fr) * 1982-12-16 1984-06-22 Chausson Usines Sa Echangeur de chaleur a tubes longs pour vehicules poids lourds
DE3303986A1 (de) * 1983-02-05 1984-08-09 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Wasser/luft-kuehler fuer wassergekuehlte verbrennungskraftmaschinen, insbesondere von nutzfahrzeugen
DE3428857A1 (de) * 1984-08-04 1986-02-13 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Wasser/luft-kuehler fuer wassergekuehlte verbrennungskraftmaschinen
JPH0679883B2 (ja) * 1986-09-12 1994-10-12 日産自動車株式会社 ラジエ−タの取付構造
JPS63302650A (ja) * 1987-06-02 1988-12-09 Fujitsu Ltd ハンドセット筐体構造
DE3820623A1 (de) * 1988-06-17 1989-12-21 Sueddeutsche Kuehler Behr Wasser/luft-kuehler fuer wassergekuehlte verbrennungskraftmaschinen, insbesondere von nutzfahrzeugen
SE508658C2 (sv) * 1991-03-06 1998-10-26 Blackstone Sweden Kylare med sidostycke försett med ingreppsorgan för lösbart ingrepp med kylartankarna
FR2674014B1 (fr) * 1991-03-12 1993-05-28 Valeo Thermique Moteur Sa Echangeur de chaleur a boites a eau reliees pour vehicules automobiles.
DE4109284A1 (de) * 1991-03-21 1992-09-24 Behr Gmbh & Co Wasser/luft-kuehler fuer wassergekuehlte verbrennungskraftmaschinen

Also Published As

Publication number Publication date
DE69329892D1 (de) 2001-03-01
EP0597767A1 (de) 1994-05-18
FR2697907B1 (fr) 1995-01-20
DE69329892T2 (de) 2001-05-03
FR2697907A1 (fr) 1994-05-13

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