EP1479996A1 - 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
EP1479996A1
EP1479996A1 EP03291197A EP03291197A EP1479996A1 EP 1479996 A1 EP1479996 A1 EP 1479996A1 EP 03291197 A EP03291197 A EP 03291197A EP 03291197 A EP03291197 A EP 03291197A EP 1479996 A1 EP1479996 A1 EP 1479996A1
Authority
EP
European Patent Office
Prior art keywords
pipe
connecting piece
connection according
pipe end
piece
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.)
Granted
Application number
EP03291197A
Other languages
German (de)
English (en)
Other versions
EP1479996B1 (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 Hambach SARL
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 Hambach SARL filed Critical Behr France Hambach SARL
Priority to DE50306374T priority Critical patent/DE50306374D1/de
Priority to AT03291197T priority patent/ATE352764T1/de
Priority to EP03291197A priority patent/EP1479996B1/fr
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 a connection pipe and a connecting piece of a collecting tank a heat exchanger according to the preamble of claim 1.
  • Pipe connection connections, d. H. so-called connectors were known from DE-A 35 17 488 and DE-A 44 03 402.
  • the DE '488 relates to a radiator for motor vehicles with a plastic water tank, which a connection piece for receiving a pipe end having a connecting pipe for the radiator.
  • the connection pipe has a collar in the form of a circumferential bead is in the Connecting piece inserted and by a hairpin-shaped Clamp positively held in the connection piece, with the seal takes place via an elastomeric sealing ring.
  • This known connector is designed for plastic water tanks and has the disadvantage that the connecting pipe with an additional, lose part, namely the securing clip must be held in the connecting piece.
  • the DE '402 was a pluggable pipe connection for a soldered Radiator known, with a connecting piece as an additional part is soldered in a metallic collection box of the radiator.
  • this connector is similar to the one described above, d. H. the pipe end also has a collar, which is the positive locking of the connection pipe by means of a securing clip serves. The sealing of the pipe end is also done via a elastomeric sealing ring.
  • the pipe end of the connecting pipe through a bayonet catch in the connecting piece of the Collection box is secured.
  • bayonet is a known Plug-and-turn to understand in which the pipe end first inserted into the connecting piece and then to achieve a positive lock is twisted.
  • This type of connection which in principle - apart from the sealing ring - only consists of two parts, locks itself thus. This results in the advantage that on one Securing clip, d. H. an additional, losable part, be waived can.
  • the installation of the connection pipe is done only by inserting and twisting the pipe end.
  • the locking means exist the bayonet catch from locking lugs, the open end the pipe end are arranged and the one locking surface of the Behind the connecting piece.
  • the connecting piece For inserting the locking lugs by the connecting piece has these longitudinal grooves adapted to the locking lugs are. This is a simple insertion of the pipe end in the connection piece with subsequent twisting and locking possible.
  • the Locking surface on the connection piece is advantageously by a Formed end face, which is engaged behind by the locking lugs.
  • a further embodiment of the invention is for positive locking of the pipe end provided an abutment on the connecting piece, on which the bead or the collar of the pipe end rests.
  • the pipe end So supported by the bead in one direction from the collection box and is held in the other direction by the locking lugs. This is one secure fit in both directions given the pipe axis.
  • the locking lugs are out of the Pipe wall of the pipe end formed, preferably by a shear and embossing 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 is the pipe end seals against the connecting piece, between the outer Seat or abutment and the longitudinal grooves arranged. This will be a safe Sealing of the connector achieved because the bayonet connection is disposed within the sealing ring.
  • the connecting piece is inside, d. H. into the collection box.
  • the collecting box from a metallic material, in particular an aluminum alloy made and is preferably designed as a deep-drawn part.
  • a metallic material in particular an aluminum alloy made and is preferably designed as a deep-drawn part.
  • the pipe connection connection according to the invention also for All-aluminum heat exchangers, in particular radiators for motor vehicles be used, both for mechanically joined radiator - as in the applicant's earlier application (internal reference: 02 -BF-12) - or for brazed radiators.
  • 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 with 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 move in the direction of its pipe axis a (cf. 2) through the connecting piece 11 are inserted.
  • 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)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
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
DE50306374T DE50306374D1 (de) 2003-05-20 2003-05-20 Rohranschlussverbindung für Wärmeübertrager, insbesondere Heinzkörper für Kraftfahrzeuge
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

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 true EP1479996A1 (fr) 2004-11-24
EP1479996B1 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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006050982A1 (fr) * 2004-11-15 2006-05-18 Behr Gmbh & Co. Kg Reservoir de collecte metallique pour un echangeur thermique, en particulier pour des vehicules
US20210270548A1 (en) * 2018-11-20 2021-09-02 Denso Corporation Heat exchanger

Families Citing this family (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

Citations (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
DE4445091A1 (de) * 1993-12-17 1995-06-22 Nippon Denso Co Rohranschlußeinrichtung und diese verwendender Wärmetauscher
DE4403402A1 (de) 1994-02-04 1995-08-10 Behr Gmbh & Co Rohranschluß für einen Wasserkasten eines Kraftfahrzeug-Wärmetauschers
FR2809485A1 (fr) * 2000-05-29 2001-11-30 Valeo Thermique Moteur Sa Boite collectrice pour un echangeur de chaleur brase et echangeur comportant une telle boite
EP1302740A2 (fr) * 2001-10-16 2003-04-16 Galsonic Kansei UK Limited Echangeur de chaleur pour véhicule automobile avec raccord de connection fluidique

Patent Citations (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
DE4445091A1 (de) * 1993-12-17 1995-06-22 Nippon Denso Co Rohranschlußeinrichtung und diese verwendender Wärmetauscher
DE4403402A1 (de) 1994-02-04 1995-08-10 Behr Gmbh & Co Rohranschluß für einen Wasserkasten eines Kraftfahrzeug-Wärmetauschers
FR2809485A1 (fr) * 2000-05-29 2001-11-30 Valeo Thermique Moteur Sa Boite collectrice pour un echangeur de chaleur brase et echangeur comportant une telle boite
EP1302740A2 (fr) * 2001-10-16 2003-04-16 Galsonic Kansei UK Limited Echangeur de chaleur pour véhicule automobile avec raccord de connection fluidique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006050982A1 (fr) * 2004-11-15 2006-05-18 Behr Gmbh & Co. Kg Reservoir de collecte metallique pour un echangeur thermique, en particulier pour des vehicules
US20210270548A1 (en) * 2018-11-20 2021-09-02 Denso Corporation Heat exchanger

Also Published As

Publication number Publication date
ATE352764T1 (de) 2007-02-15
EP1479996B1 (fr) 2007-01-24
DE50306374D1 (de) 2007-03-15

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