EP1293743A2 - Bloc de tubes plats avec extrémités déformées pour échangeur de chaleur - Google Patents

Bloc de tubes plats avec extrémités déformées pour échangeur de chaleur Download PDF

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Publication number
EP1293743A2
EP1293743A2 EP02017056A EP02017056A EP1293743A2 EP 1293743 A2 EP1293743 A2 EP 1293743A2 EP 02017056 A EP02017056 A EP 02017056A EP 02017056 A EP02017056 A EP 02017056A EP 1293743 A2 EP1293743 A2 EP 1293743A2
Authority
EP
European Patent Office
Prior art keywords
flat tube
flat
tube
heat exchanger
twisted
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
EP02017056A
Other languages
German (de)
English (en)
Other versions
EP1293743B1 (fr
EP1293743A3 (fr
Inventor
Walter Dipl.-Ing. Demuth
Martin Dipl.-Ing. Kotsch
Hans-Joachim Dipl.-Ing. Krauss
Hagen Dipl.-Ing. Mittelstrass
Jochen Schumm
Michael Dipl.-Ing. Sickelmann
Karl-Heinz Dipl.-Ing. Staffa
Christoph Dipl.-Ing. Walter
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 GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1293743A2 publication Critical patent/EP1293743A2/fr
Publication of EP1293743A3 publication Critical patent/EP1293743A3/fr
Application granted granted Critical
Publication of EP1293743B1 publication Critical patent/EP1293743B1/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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached 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
    • 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
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0073—Gas coolers
    • 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
    • F28D2021/0084—Condensers
    • 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
    • F28D2021/0085—Evaporators

Definitions

  • the invention relates to a heat exchanger flat tube block with one or more flat tubes, each at least one End portion are formed and with this in a terminal compartment part lead.
  • heat exchanger can e.g. as condenser / gas cooler or as evaporator in Vehicle air conditioning systems can be used with carbon dioxide or working another refrigerant.
  • the flat tubes are in its end portion with its entire undivided width to a predetermined Angles of e.g. twisted between 10 ° and 90 ° or U- or V-shaped bent.
  • This type of design of the flat tube ends allows connection boxes to be used as connecting space-forming components or headers may be used, whose Transverse dimension or diameter not larger than the flat tube width and so that the tube block depth is, i. the junction boxes or Collector pipes are not in the depth direction on the tube block construction in front.
  • junction boxes or manifolds with relatively low internal volume and therefore used high pressure resistance become.
  • the invention is the technical problem of providing a novel heat exchanger flat tube block of the aforementioned Type based, which is relatively easy and safe to manufacture, with relatively small volume connecting space-forming components manages and if necessary with flat pipe distances in the block structure can be realized, the smaller than the flat tube width.
  • the invention solves this problem by providing a heat exchanger flat tube block with the features of claim 1.
  • this flat tube block is a special transformation of the respective Flat tube end portion provided such that the end portion by one or more longitudinal dividing lines into a plurality of dividing end sections divided, each one against a subsequent Flat tube center section twisted and ends with their facing each other Flat sides abutting each other in the terminal compartment component are attached.
  • the twisting can be 90 °, but also around take any other angle.
  • the reduced required slot slot length has the particular advantage that on the one hand the sectionendab songse the flat tubes when needed Can be twisted 90 °, whereby the transverse dimension, i. depth dimension of the terminal compartment component, and to minimize other still a medium flat tube distance in the tube block feasible is, which can be significantly smaller than the flat tube width.
  • a multi-channel flat tube type used, with the respective longitudinal line by sawing or scoring the flat tube either between two adjacent flat-tube channels or along a channel is formed.
  • the cut-open channel can be closed if necessary, e.g. by introducing solder in a soldering process during manufacture of the tube block construction.
  • Figs. 1 to 4 illustrate the manufacturing process for a first one Flat tube variant.
  • This is a pressure-stable extruded flat tube blank 1 of multi-channel type with an even number of e.g. eight used individual channels 2. These are centered at both ends a e.g. about 15mm to 30mm long saw cut 3 in the longitudinal direction introduced, which runs between two adjacent individual channels and the respective end portion 1a in two Operaendabête 4a, 4b divides.
  • the flat tube width B thus corresponds to twice the width T of both Operaendabête 4a, 4b plus the saw cut width S.
  • the two Operaendabitese 4a, 4b in each case a torsion axis parallel to the longitudinal axis of the flat tube 5, e.g. around their respective longitudinal central axis, twisted by 90 ° in opposite directions, i. twisted, and then with their end area facing each other Flat sides 5a, 5b against each other, e.g. by squeezing the two twisted ends.
  • the two correspond to each other adjacent flat sides 5a, 5b of the Operaendabchae 4a, 4b of a flat side of the end portion 1a in the not yet formed Condition of Fig. 1 and 2, while facing away from each other Flat sides 6a, 6b of the two Operaendabchae 4a, 4b of the other Flat side of the not yet formed end portion 1a correspond.
  • Figs. 3 and 4 show the finished flat tube in its one deformed end portion 1a with the two opposite a subsequent Flachrohrstoffabêt 1b twisted and end with their flat sides abutting Generalendabroughen 4a, 4b.
  • the overall height is on this way formed flat tube ends equal to the width T of the respective Operaendabitess 4a, 4b and thus only about half as large as the Flat tube width B, which determines the tube block depth.
  • the two Sectionendabterrorisme 4a, 4b are at the mouth end of the flat tube on one side the former outer Narrow sides 7a, 7b and on the other side the previously to the Saw cut 3 adjacent dividend end narrow sides 8a, 8b across from.
  • FIGS. 5 and 6 illustrate a second flat tube variant, the that of Figs. 1 to 4 with the exception that the two Operaendabterrorisme 4a, 4b not in opposite directions, but in the same direction by 90 ° each with its own, parallel to the flat tube longitudinal central axis 5 torsion twisted and then with the facing flat sides are juxtaposed at the ends.
  • the two Ambiendabterrorisme 4a, 4b both clockwise or both counterclockwise twisted, while in the embodiment of FIGS.
  • FIGS. 7 and 8 illustrate in sections the construction of a tube / rib block of straight, end twisted flat tubes 1 of the type shown in FIGS. 1 to 6 and intermediate corrugated fins 11.
  • a tube / rib block is for example for a gas cooler usable with the refrigerant CO 2 working vehicle air conditioning.
  • the flat tubes 10 are on both sides with their specially shaped end portions 1a, each consisting of the two formed by central longitudinal slot, twisted and abutted Operaendab songs inserted in a continuous longitudinal slot 12 each of a laterally arranged on the block manifold 13 fluid-tight.
  • the width of the Tube insertion slot 12, e.g. continuous along the pipe jacket of the manifold 13 extends, selected slightly larger than the double flat tube thickness or height, e.g. around 0.1mm or something more.
  • the collecting tube 13 is preferably made of solder-plated material.
  • partitions 14 are introduced, of which one can be seen in Fig. 8 and the manifold interior in divide a plurality of plenums 15a, 15b so that the refrigerant, which is supplied or removed via the manifold 13, meandering is passed through the tube block construction.
  • Fig. 9 shows the partition wall 14 in a plan view. As can be seen, has the respective transverse partition 14 a the manifold cross-section corresponding circular shape, in which a recess 16 is inserted, the width of the width of the manifold slot 12 and the depth of the Flat tube insertion depth corresponds. As a result, the relevant flat tube end section engages fluid-tight in this recess 16 a.
  • the flat tubes 1 with their divided and twisted End portions 1a adjacent to each other in the continuous collection tube longitudinal slot 12 are inserted corresponds to the so-called division, i.e. the distance of the flat tubes 1 in the tube / rib block, the width T of the twisted flat tube Operaendab baine and is thus only about half as large as the flat tube width B and thus the depth of the tube / rib block.
  • the flat tubes at the ends twisted by 90 ° in the manifold 13 open, the diameter of which can be chosen without difficulty be that the collecting pipe 13 is not in the block depth direction protruding beyond the tube / fin block, i. the manifold diameter is equal to or smaller than the flat tube width B.
  • the block is up the other, not shown in Figs. 7 and 8, opposite Flat pipe connection side provided in the same way with a manifold, in which the flat tubes 1 divided in the same way and inserted twisted are.
  • the production of the tube / rib block is done in a conventional manner by plugging and soldering the individual components.
  • the flat tubes 1 are preferred before twisting their Operaendabroughe with a mixture of solder and Nokolok flux. This can be combined with the choice of a solder-plated material for the manifolds 13 a sufficiently gas-tight connection of the Achieve flat tube ends with the respective manifold. Be alternative used to pretreated flat tubes, so the achievement a fluid-tight solder joint are supported by that On each tube side, a solder-flux mixture applied drop-shaped becomes.
  • FIG. 10 shows in an end view corresponding to FIG. 2 a variant of FIG Flat tube 1 with an odd number of e.g. nine single channels 2.
  • the saw cut 3 for dividing the Flachrohrendabitess in the two Operaendabterrorisme introduced along the central single channel This remains therefore fluidically passive, i. the refrigerant is only through the rest Single channels passed. If necessary, the sawn, central Single channel end, e.g. be closed by soldering material.
  • the respective flat tube end section by introducing several longitudinal dividing lines into more than two Operaendabriske divided, which then twisted and end with their Flat sides are juxtaposed. This allows for a more distinct Reduction of the insertion slot length required per flat tube Collecting tube and thus the minimum flat tube spacing in the tube block.
  • the splitting of the flat tube end section can take place in the sectionendabroughe by introducing a respective Sollrissline done along the then at the subsequent Twisting the Operaendabroughe the flat tube end portion separated becomes.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP02017056A 2001-09-18 2002-07-27 Bloc de tubes plats avec extrémités déformées pour échangeur de chaleur Expired - Lifetime EP1293743B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10146824 2001-09-18
DE10146824A DE10146824A1 (de) 2001-09-18 2001-09-18 Wärmeübertrager-Flachrohrblock mit umgeformten Flachrohrenden

Publications (3)

Publication Number Publication Date
EP1293743A2 true EP1293743A2 (fr) 2003-03-19
EP1293743A3 EP1293743A3 (fr) 2003-11-12
EP1293743B1 EP1293743B1 (fr) 2006-09-20

Family

ID=7699968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017056A Expired - Lifetime EP1293743B1 (fr) 2001-09-18 2002-07-27 Bloc de tubes plats avec extrémités déformées pour échangeur de chaleur

Country Status (3)

Country Link
EP (1) EP1293743B1 (fr)
AT (1) ATE340351T1 (fr)
DE (2) DE10146824A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2887973A1 (fr) * 2005-06-30 2007-01-05 Valeo Systemes Thermiques Echangeur de chaleur a tubes plats deformes par torsion et boite collectrice pour un tel echangeur
WO2007048888A1 (fr) * 2005-10-28 2007-05-03 Valeo Systemes Thermiques Echangeur de chaleur à tubes plats déformés par torsion
US20140007612A1 (en) * 2012-07-06 2014-01-09 Samsung Electronics Co., Ltd. Refrigerator and heat exchanger for the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025727A1 (de) * 2005-08-04 2007-02-08 Visteon Global Technologies, Inc., Van Buren Township Wärmeübertrager für Fahrzeuge und Verfahren zu seiner Herstellung
DE102015118969A1 (de) 2015-11-05 2017-05-11 TT&C Thermotransmission & Cooling UG Wärmeübertrager, insbesondere für Hochdruckkältemittel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649129A1 (de) 1996-11-27 1998-05-28 Behr Gmbh & Co Flachrohr-Wärmeübertrager mit umgeformtem Flachrohrendabschnitt
DE19833845A1 (de) 1998-07-28 2000-02-03 Behr Gmbh & Co Wärmeübertrager-Rohrblock und dafür verwendbares Mehrkammer-Flachrohr

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813339C2 (de) * 1988-04-21 1997-07-24 Gea Happel Klimatechnik Wärmetauscher für Kraftfahrzeuge und Verfahren zu seiner Herstellung
US5186244A (en) * 1992-04-08 1993-02-16 General Motors Corporation Tube design for integral radiator/condenser
FR2711236B1 (fr) * 1993-10-12 1995-11-24 Valeo Thermique Habitacle Echangeur de chaleur à deux rangées de tubes, en particulier pour véhicule automobile.
DE19830863A1 (de) * 1998-07-10 2000-01-13 Behr Gmbh & Co Flachrohr mit Querversatz-Umkehrbogenabschnitt und damit aufgebauter Wärmeübertrager
DE19846267A1 (de) * 1998-10-08 2000-04-13 Behr Gmbh & Co Sammelrohreinheit für einen Wärmeübertrager
FR2793013B1 (fr) * 1999-04-28 2001-07-27 Valeo Thermique Moteur Sa Echangeur de chaleur brase, en particulier pour vehicule automobile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649129A1 (de) 1996-11-27 1998-05-28 Behr Gmbh & Co Flachrohr-Wärmeübertrager mit umgeformtem Flachrohrendabschnitt
DE19833845A1 (de) 1998-07-28 2000-02-03 Behr Gmbh & Co Wärmeübertrager-Rohrblock und dafür verwendbares Mehrkammer-Flachrohr

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2887973A1 (fr) * 2005-06-30 2007-01-05 Valeo Systemes Thermiques Echangeur de chaleur a tubes plats deformes par torsion et boite collectrice pour un tel echangeur
FR2887972A1 (fr) * 2005-06-30 2007-01-05 Valeo Systemes Thermiques Echangeur de chaleur a tubes plats tordus en extremite
WO2007048888A1 (fr) * 2005-10-28 2007-05-03 Valeo Systemes Thermiques Echangeur de chaleur à tubes plats déformés par torsion
WO2007048889A1 (fr) * 2005-10-28 2007-05-03 Valeo Systemes Thermiques Echangeur de chaleur a tubes plats resistant a la pression
US20140007612A1 (en) * 2012-07-06 2014-01-09 Samsung Electronics Co., Ltd. Refrigerator and heat exchanger for the same

Also Published As

Publication number Publication date
EP1293743B1 (fr) 2006-09-20
DE50208190D1 (de) 2006-11-02
EP1293743A3 (fr) 2003-11-12
ATE340351T1 (de) 2006-10-15
DE10146824A1 (de) 2003-04-24

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