EP1479996B1 - Raccord de tuyaux pour échangeur de chaleur, notamment radiateurs pour véhicules automobiles - Google Patents

Raccord de tuyaux pour échangeur de chaleur, notamment radiateurs pour véhicules automobiles Download PDF

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Publication number
EP1479996B1
EP1479996B1 EP03291197A EP03291197A EP1479996B1 EP 1479996 B1 EP1479996 B1 EP 1479996B1 EP 03291197 A EP03291197 A EP 03291197A EP 03291197 A EP03291197 A EP 03291197A EP 1479996 B1 EP1479996 B1 EP 1479996B1
Authority
EP
European Patent Office
Prior art keywords
pipe
connection piece
accordance
pipe coupling
pipe end
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
EP03291197A
Other languages
German (de)
English (en)
Other versions
EP1479996A1 (fr
Inventor
Michel Brun
Yvan Tschamber
Thomas Muller
Abdelkader Kerroum
Christian Cardot
Philippe Grigeois
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.)
Mahle Behr France Rouffach SAS
Original Assignee
Behr France Rouffach 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.)
Filing date
Publication date
Application filed by Behr France Rouffach SAS filed Critical Behr France Rouffach SAS
Priority to AT03291197T priority Critical patent/ATE352764T1/de
Priority to EP03291197A priority patent/EP1479996B1/fr
Priority to DE50306374T priority patent/DE50306374D1/de
Publication of EP1479996A1 publication Critical patent/EP1479996A1/fr
Application granted granted Critical
Publication of EP1479996B1 publication Critical patent/EP1479996B1/fr
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
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0248—Arrangements for sealing connectors to header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove
    • F28F2275/146—Fastening; Joining by using form fitting connection, e.g. with tongue and groove with bayonet connections

Definitions

  • the invention relates to a pipe connection between a pipe end of a connecting pipe and a connecting piece of a collecting tank of a heat exchanger according to the preamble of claim 1.
  • Pipe connections ie so-called connectors were known from DE-A 35 17 488 and DE-A 44 03 402.
  • DE '488 relates to a radiator for motor vehicles with a plastic water tank, which has a connection piece for receiving a pipe end of a connecting pipe for the radiator.
  • the connecting tube has a collar in the form of a circumferential bead, is inserted into the connecting piece and held by a hairpin-shaped clamp form-fitting manner in the connecting piece, wherein the sealing takes place via an elastomeric sealing ring.
  • This known connector is designed for plastic water tanks and has the disadvantage that the connection pipe with an additional, losable part, namely the securing clip in the connection piece must be kept.
  • connection pipe is secured by a bayonet lock in the connection piece of the collecting tank.
  • a bayonet closure is to be understood as meaning a plug-in rotary connection known per se, in which the pipe end is first inserted into the connecting piece and then twisted to achieve a form-locking securing.
  • This type of connection which in principle - apart from the sealing ring - only consists of two parts, thus locks itself. This has the advantage that on a securing clip, d. H. An additional, loseable part, can be dispensed with.
  • the installation of the connection pipe is done only by inserting and twisting the pipe end.
  • Such a pipe connection is known from DE-A-4 445 091.
  • the locking means of the bayonet lock consist of latching noses, which are arranged at the open end of the pipe end and engage behind a locking surface of the connecting piece.
  • this has longitudinal grooves which are adapted to the locking lugs.
  • an abutment on the connecting piece is provided for the positive securing of the pipe end, on which rests the bead or the collar of the pipe end.
  • the pipe end is thus supported by means of the bead in one direction from the collection box and is held in the other direction by the locking lugs. This ensures a positive fit in both directions of the pipe axis.
  • the latching noses are formed from the tube wall of the pipe end, preferably by a shearing and stamping process, in the region of the end face of the pipe end. This gives a short-lasting and easy to produce pipe connection.
  • the sealing ring which seals the pipe end against the connecting piece, arranged between the outer seat or abutment and the longitudinal grooves.
  • connection piece is inwards, d. H. into the collection box. This results in a space-saving design for the collection box and for the entire heat exchanger, which usually has two connecting pieces, d. H. for an inlet connection pipe and for a drain connection pipe.
  • the collecting box is made of a metallic material, in particular an aluminum alloy and is preferably formed as a deep-drawn part.
  • the pipe connection of the invention can also be used for all-aluminum heat exchangers, especially radiators for motor vehicles, both for mechanically joined radiators - as described in the earlier application of the applicant (internal reference: 02 -BF-12) - or for soldered Radiator.
  • Fig. 1 shows a connecting pipe 1 for a radiator, not shown, of a motor vehicle.
  • the connecting pipe 1 has a radiator side, angled pipe end 2 and can be connected to a coolant - or heating circuit of the motor vehicle, not shown.
  • Fig. 2 shows the pipe end 2, which has a pipe wall 2a, with a circumferential bead 3, which forms a collar-shaped extension of the tube.
  • the bead 3 is followed by a smooth sealing portion 4, at the end of two locking lugs 5, 6 are arranged.
  • the locking lugs 5, 6 have in the direction of the tube longitudinal axis a to a width b and are formed by shearing a shear surface 8 of the wall 2a; they are bounded on the one hand by an end face 7 of the pipe end 2 and on the other hand by the shear surface. 8
  • Fig. 3 shows a collecting box 9 of the radiator, not shown, which incidentally corresponds to the radiator in the earlier application of the Applicant (internal reference: 02-BF-12).
  • the collecting box 9 has two inwardly directed connecting pieces 10, 11, which are intended for receiving connecting pipes.
  • the collecting box 9 is - as described in the earlier application - connected via a tube plate, not shown, with a heat exchanger block of a radiator.
  • the collecting box 9 is made as a deep-drawn part of an aluminum alloy. It can thus be soldered with an aluminum heat exchanger or - as shown here - mechanically joined, ie connected via a peripheral edge region 12 by means of tabs 13 with the tube sheet.
  • Fig. 4 shows a view from below of the inwardly directed connecting pieces 10, 11, between which there is a bead 14 for a longitudinal partition, not shown.
  • the collecting box 9 is divided into an inlet chamber 15 with the inlet nozzle 10 and a drain chamber 16 with the outlet nozzle 11.
  • the connecting pieces 10, 11 each have a cylindrical wall 10a or 11a, from which in each case two longitudinal grooves 17, 18 are formed.
  • These outwardly formed longitudinal grooves 17, 18 have an approximately semicircular cross section, which is adapted to the shape of the latching lugs 5, 6 (see FIG.
  • the connecting piece 10 has an inner guide section 19 with a diameter d1 and a second widened sealing section 20 with a diameter d2.
  • the outer section 20 is adjoined by a conically shaped seat 21, which serves as a contact surface or abutment for the collar 3 of the connection pipe 1 (see FIG. In section 19, the longitudinal groove 17 is arranged.
  • the bead 14 in the collecting box 9 serves to receive the longitudinal partition, not shown.
  • FIG. 6 shows the connection of the pipe end 2 to the connecting piece 11 in a first assembly step: the latching lugs 5, 6 of the pipe end 2 are guided in the longitudinal grooves 18 of the connection piece 11, ie the pipe end 2 can be inserted through the connecting piece 11 in the direction of its tube axis a (see Fig. 2).
  • Fig. 7 shows the same connection as shown in Fig. 6 in a second assembly step, wherein the locking lugs 5, 6 are already outside the longitudinal grooves 18, 19, that is no longer guided by them.
  • Fig. 8 shows the same connection as previously shown in Figures 6 and 7 in its locking position: the locking lugs 5, 6 are compared with the longitudinal grooves 18, 19 twisted and lie with its inner boundary surface (shear surface) 8 (see Fig .. 2) the front or locking surface 22 (see Fig. 5): thus, the pipe end 2 is positively secured in an axial direction.
  • Fig. 9 shows the connection of the connecting pipe 1 with pipe end 2 and connecting piece 10 (11) in a longitudinal section.
  • a sealing ring 23 is arranged, which seals the pipe end 2 against the connecting piece 10.
  • the collar 3 of the pipe end 2 rests on the conically formed seat 21 (see FIG. 5), ie, the shape of the collar, and thus fixes the connection pipe 1 in the direction of the pipe axis a downwards.
  • engages behind the locking lug 5 (the other is not shown), the end face 22 and thus fixes the connection pipe 1 in the other direction of the tube axis a.
  • a fixed bearing is formed, ie, the pipe end 2 is fixed in both axial directions.
  • Fig. 10 shows a modified embodiment of a pipe connection 24 between a pipe end 25 and a connecting piece 26.
  • the pipe end 25 in an analogous manner as in the previous embodiment - three evenly distributed over the circumference locking lugs 27, while in the connecting piece 26 three Longitudinal grooves 28 are arranged, which allow a passage of the locking lugs 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Claims (11)

  1. Jonction de tuyaux entre une extrémité de tuyau (2) d'un tuyau de jonction (1) et un raccord (10, 11) d'une cuve collectrice (9) d'un échangeur thermique, en particulier d'un radiateur pour véhicules automobiles, l'extrémité de tuyau (2) présentant une moulure (3) périphérique, étant emboîtée dans le raccord (10, 11) et étanchée par une bague d'étanchéité (23), l'extrémité de tuyau (2) étant bloquée par une fermeture à baïonnette dans le raccord (10, 11), caractérisée en ce que la fermeture à baïonnette présente des crans d'arrêt (5, 6) à l'extrémité de tuyau (2), des rainures longitudinales (17, 18) dans le raccord (10, 11) pour le passage des crans d'arrêt (5, 6) et une surface de verrouillage (22) sur le raccord (10), les rainures longitudinales présentant des contours intérieurs pour guider les crans d'arrêt (5, 6) dans les rainures longitudinales (17, 18), qui sont adaptés aux contours extérieurs des crans d'arrêt (5, 6).
  2. Jonction de tuyaux selon la revendication 1, caractérisée en ce que la surface de verrouillage est formée par une surface frontale (22) du raccord (10).
  3. Jonction de tuyaux selon la revendication 1 ou 2, caractérisée en ce que le raccord (19) présente un siège (21) en forme de palier antagoniste pour la moulure (3).
  4. Jonction de tuyaux selon la revendication 1, 2 ou 3, caractérisée en ce que l'extrémité de tuyau (2) présente une surface frontale terminale (7) et une paroi de tuyau (2a), et les crans d'arrêt (5, 6) sont formés à partir de la paroi de tuyau (2a) dans la zone de la surface frontale (7).
  5. Jonction de tuyaux selon la revendication 4, caractérisée en ce que les crans d'arrêt (5, 6) sont réalisés par cisaillage et estampage de la paroi de tuyau (2a).
  6. Jonction de tuyaux selon l'une quelconque des revendications 3 à 5, caractérisée en ce que la bague d'étanchéité (23) est disposée entre le siège (21) et les rainures longitudinales (17, 18).
  7. Jonction de tuyaux selon l'une quelconque des revendications précédentes, caractérisée en ce que le raccord (10, 11) est dirigé dans la cuve collectrice (9).
  8. Jonction de tuyaux selon l'une quelconque des revendications précédentes, caractérisée en ce que la cuve collectrice (9) et les raccords (10, 11) sont fabriqués d'une seule pièce à partir d'un matériau métallique, en particulier d'un alliage d'aluminium, notamment par emboutissage.
  9. Jonction de tuyaux selon l'une quelconque des revendications précédentes, caractérisée en ce que la fermeture à baïonnette présente deux ou trois crans d'arrêt (5, 6, 27) sur l'extrémité de tuyau (2, 25) et deux ou trois rainures longitudinales (17, 18, 28) dans le raccord (10, 11, 26).
  10. Jonction de tuyaux selon l'une quelconque des revendications précédentes, caractérisée en ce que les rainures longitudinales (17, 18, 28) présentent une section transversale sensiblement en demi-cercle.
  11. Échangeur thermique, en particulier radiateur pour véhicules automobiles, avec un tuyau de jonction (1) et une cuve collectrice (9), comprenant une jonction de tuyaux entre une extrémité de tuyau (2) du tuyau de jonction (1) et un raccord (10, 11) de la cuve collectrice (9), caractérisé en ce que la jonction de tuyaux est configurée selon l'une quelconque des revendications précédentes.
EP03291197A 2003-05-20 2003-05-20 Raccord de tuyaux pour échangeur de chaleur, notamment radiateurs pour véhicules automobiles Expired - Lifetime EP1479996B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT03291197T ATE352764T1 (de) 2003-05-20 2003-05-20 Rohranschlussverbindung für wärmeübertrager, insbesondere heinzkörper für kraftfahrzeuge
EP03291197A EP1479996B1 (fr) 2003-05-20 2003-05-20 Raccord de tuyaux pour échangeur de chaleur, notamment radiateurs pour véhicules automobiles
DE50306374T DE50306374D1 (de) 2003-05-20 2003-05-20 Rohranschlussverbindung für Wärmeübertrager, insbesondere Heinzkörper für Kraftfahrzeuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03291197A EP1479996B1 (fr) 2003-05-20 2003-05-20 Raccord de tuyaux pour échangeur de chaleur, notamment radiateurs pour véhicules automobiles

Publications (2)

Publication Number Publication Date
EP1479996A1 EP1479996A1 (fr) 2004-11-24
EP1479996B1 true EP1479996B1 (fr) 2007-01-24

Family

ID=33041117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291197A Expired - Lifetime EP1479996B1 (fr) 2003-05-20 2003-05-20 Raccord de tuyaux pour échangeur de chaleur, notamment radiateurs pour véhicules automobiles

Country Status (3)

Country Link
EP (1) EP1479996B1 (fr)
AT (1) ATE352764T1 (fr)
DE (1) DE50306374D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014200906A1 (de) * 2014-01-20 2015-07-23 MAHLE Behr GmbH & Co. KG Rohrverbindung, insbesondere für einen Wärmeübertrager

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004055086A1 (de) * 2004-11-15 2006-05-18 Behr Gmbh & Co. Kg Metallischer Sammelkasten für einen Wärmeübertrager, insbesondere für Kraftfahrzeuge
JP2020085288A (ja) * 2018-11-20 2020-06-04 株式会社デンソー 熱交換器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379574A (en) * 1980-12-22 1983-04-12 Ex-Cell-O Corporation Radiator assembly (bayonet lock)
DE3517488A1 (de) 1985-05-15 1986-11-20 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Rohranschluss, insbesondere fuer einen wasserkasten eines waermetauschers einer kraftfahrzeugheizung
JPH07174479A (ja) * 1993-12-17 1995-07-14 Nippondenso Co Ltd パイプの取付構造及びそれを用いた熱交換器
DE4403402A1 (de) 1994-02-04 1995-08-10 Behr Gmbh & Co Rohranschluß für einen Wasserkasten eines Kraftfahrzeug-Wärmetauschers
FR2809485B1 (fr) * 2000-05-29 2003-04-11 Valeo Thermique Moteur Sa Boite collectrice pour un echangeur de chaleur brase et echangeur comportant une telle boite
GB2380965A (en) * 2001-10-16 2003-04-23 Llanelli Radiators Ltd Automotive heat exchanger having fluid connection piece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014200906A1 (de) * 2014-01-20 2015-07-23 MAHLE Behr GmbH & Co. KG Rohrverbindung, insbesondere für einen Wärmeübertrager
US9976821B2 (en) 2014-01-20 2018-05-22 Mahle International Gmbh Pipe connection, in particular for a heat exchanger

Also Published As

Publication number Publication date
EP1479996A1 (fr) 2004-11-24
DE50306374D1 (de) 2007-03-15
ATE352764T1 (de) 2007-02-15

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