EP0929784B1 - Flachrohrwärmetauscher für kraftfahrzeuge mit an krägen eines rohrbodens gehaltenen flachrohren - Google Patents

Flachrohrwärmetauscher für kraftfahrzeuge mit an krägen eines rohrbodens gehaltenen flachrohren Download PDF

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Publication number
EP0929784B1
EP0929784B1 EP98925533A EP98925533A EP0929784B1 EP 0929784 B1 EP0929784 B1 EP 0929784B1 EP 98925533 A EP98925533 A EP 98925533A EP 98925533 A EP98925533 A EP 98925533A EP 0929784 B1 EP0929784 B1 EP 0929784B1
Authority
EP
European Patent Office
Prior art keywords
flat
tube
heat exchanger
partition
flat tubes
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
EP98925533A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0929784A1 (de
Inventor
Roland Haussmann
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 Klimatechnik GmbH and Co KG
Original Assignee
Valeo Klimatechnik 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 Valeo Klimatechnik GmbH and Co KG filed Critical Valeo Klimatechnik GmbH and Co KG
Publication of EP0929784A1 publication Critical patent/EP0929784A1/de
Application granted granted Critical
Publication of EP0929784B1 publication Critical patent/EP0929784B1/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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • 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
    • 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
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/906—Reinforcement

Definitions

  • the invention relates to a flat tube heat exchanger for motor vehicles with the features of the generic term of claim 1.
  • a flat tube heat exchanger is known from EP-A1-0 656 517.
  • the invention is based, below comparable train protection of the flat tubes in the tube sheet one to enable one-step installation. It should be noted, that the train safety primarily only before soldering the whole heat exchanger is required, so that you can also smaller Degrees of train safety.
  • This mounting method is used for a flat tube heat exchanger with the features of the preamble of claim 1 thanks to its identification features.
  • claim 6 is a preferred final assembly a flat tube heat exchanger according to the invention and with Claim 7 addressed a preferred type of training as an evaporator.
  • the flat tube heat exchanger shown in FIGS. 1 and 2 is double flow and especially as Evaporator of the refrigerant circuit of a motor vehicle air conditioning system certainly.
  • the flat tube heat exchanger has the following general Construction:
  • a larger number, typically twenty to thirty flat tubes 2 will be at constant mutual distances and aligned end faces 4. There is one between each of the flat sides of the flat tubes Zigzag lamella 9 sandwiched. Likewise, a zigzag lamella 9 also on the two outer surfaces the outer flat tubes arranged. Every flat tube has inner stiffening webs 10 in the flat tube Divide chambers 12 acting as continuous channels. Depending on Construction depth is a number of chambers 12 from ten to thirty typical.
  • the evaporator serves as the internal heat exchange medium a refrigerant such as especially fluorocarbon, the in the flat tube heat exchanger via a feed line 14 enters and via an outlet line 16 from the heat exchanger emerges again.
  • the feed line 14 comes in the refrigerant circuit from its liquefier.
  • the output line 16 leads to the compressor of the refrigerant circuit.
  • the refrigerant is distributed on the input side from the feed line 14 to the individual flat tubes through a so-called distributor. On the output side the refrigerant collected is fed to the outlet line 16. If one also the distribution and the collection of separate boxes can assign, are in the two-flow embodiment shown both functions in one collector 18 united, the collection box on the input and output side serves.
  • This collector 18 is then on one end of the Flat tubes 2 arranged, while on the other end 4 the flat tubes 2 only one between the floods Flow reversal takes place, here for example by the in Fig. 2 pictured individual bowls 20 or under integration the deflection functions of such individual bowls 20 in one common deflection collector not shown 22. Also the Individual bowls 20 according to FIG. 2 can, if necessary, form a structural unit integrated by connecting parts, not shown his.
  • the multiple flow means at least one flow reversal in the area of the individual formed by the chambers 12 Channels in each flat tube 2.
  • the bowl 20 or the deflection collector then needs double-flow 22 no further inter-chamber subdivision, but it only the unique redirection function must be guaranteed his.
  • it is required in each case at least in the bowl 20 or at least one in the deflection collector Partition wall, so that in the case of four passages, a double simple redirection in the respective bowl 20 or in the respective deflection collector. With an even higher number of floods if necessary, the number of partitions be further increased.
  • the collector 18 is basically from a tube sheet 26 and a lid 28, where appropriate further parts are provided for the construction of the collector 18 could be.
  • the collector 18 Since in the double flow collector 18 the input function and the output function of the refrigerant are united, the collector 18 requires at least two-chamber training, which separates an input side from the output side.
  • the chamber subdivision has at least a flat web in the form of a longitudinal web 32, which the inlet chamber 36 communicating with the feed line 14 in the collector 18 from a continuous along the collector 18 Separates outlet chamber 34, which is connected to the outlet line 16 communicated.
  • An evaporator also requires one if possible Even supply of the refrigerant on the inlet side to all flat tubes 2.
  • the feed to neighboring groups of flat tubes, at which at least some groups have a higher number of flat tubes have as one, including the number of flat tubes per group can change.
  • Each group of flat tubes becomes one Assigned own entry chamber, not shown, which immediately communicated with the relevant group of flat tubes 2.
  • Such separate entry chambers are in the chamber subdivision through transverse webs designed as flat webs separated from each other.
  • a four-flow evaporator is excluded the longitudinal web 32, which adjoins the outlet chamber 34, a further longitudinal web parallel to this is provided.
  • This is the group's own entry chamber from cross tubes dividing flat tubes to following Longitudinal web 32 crossed at right angles.
  • Cross bars between the two longitudinal bars is then between each of these longitudinal webs to the respective outer one internal deflection chamber adjacent to its own entry chamber Redirection of the second flood into the third flood within the Collector 18 divided.
  • the feed line 14 communicates with the individual Entry chambers each via one running in the collector 18 own supply line.
  • the block is usually used in the finished heat exchanger from flat tubes 2 and zigzag fins 9 laterally through each a side plate adjacent to the outer zigzag lamella 9 completed so that the side panels have an outer Frame for the outside air flowing into the heat exchanger block form according to arrow 6 in Fig. 2.
  • the flat tubes 2, the zigzag fins 9, the tube sheet 26 and the cover 28 of the collector together with the if necessary provided chamber division as well as the side panels consist of the heat exchanger, expedient just like that Lead 14 and the output line 16, made of aluminum and / or an aluminum alloy and are included of the sections adjacent to the flat tube heat exchanger Line connections to the finished evaporator brazed.
  • connection piece in the Collector 18 can pass to two corresponding connecting pieces a thermostatically controlled block valve. This then points to the opposite side two further supply and outlet connections on.
  • the Tube plate 26 and the cover 28 made of solder precoated Sheet formed.
  • the free edge of the cover 28 engages with at least one-sided overlap - in Fig. 2 is one two-sided overlap 52 shown - in the tube sheet 26 on.
  • the engagement pieces 64 are made of the sheet metal of the tube sheet 26 as inwardly tapered collars of the slots 62 educated.
  • protrude Flat tubes 2 inserted from the outside into the tube sheet 26 through the engagement spigot located inside the collector 18 64 of the tube sheet with an inner protrusion 66.
  • the area 72 that extends through the slots 70 can be seen in FIGS. 3 and 4.
  • the longitudinal web 32 has a flat tube 2 crosses, is in the free edge of the longitudinal web 32 in each case stepped cutout 74 (see in particular FIG. 5), whose the free edge of the longitudinal web 32 adjacent further section 76, the engagement nozzle 64 and its on Because of the wide section 76 inward narrow section 78 in the inner projection 66 of the flat tube 2 surrounds the engagement nozzle 64.
  • This relative order is arranged so complementary that in the case of hard soldering the parts of the flat tube heat exchanger with each other good soldering also in the crossover area of the longitudinal web 32 with the respective flat tube 2 in the area of its interior Overhang 66 and with the associated inner Engagement sleeve 64 can be done.
  • the intersection of the longitudinal web 32 with the respective Flat tube 2 can either be adjacent to two Chambers 12 of the flat tube separating stiffening web 10 of the flat tube 2 (cf. in particular FIGS. 1 and 6) or in the region of a chamber 12 of the flat web 2 (see Fig. 3 to 5).
  • the narrow section 78 of the stepped Detail 74 can be at least almost rectangular, so however, it preferably runs with a conical widening 80 to the bottom of the narrow section 78, like this particularly 5, but also in FIGS. 3 and 4 is indicated at least indirectly.
  • a bilateral local material displacement 82 des called together pressing through the interaction of the projection 66 of the respective flat tube 2 over the inner engagement piece 64 with the narrow portion 78 of the 3 shows graduated cutouts 74.
  • Fig. 4 it is shown that when the Bottom of the narrower inner portion 78 of the stepped Section 74 of the longitudinal web 32 still one in the graded Section 74 protruding expanding mandrel 84, which according to the lower representation in Fig. 5 in a chamber 12 of the relevant flat tube 2 engages, another essential more pronounced material displacement 86 can take place, as they 4 with the simultaneous participation of the conical Widening 80 of the narrower section 78 of the stepped Section 74 is won.
  • Fig. 6 shows the result of a variant in which with constant formation of the graduated section 74 as in FIG. 5 with the expanding mandrel 84 a material displacement occurs when the expanding mandrel 84 does not enter a chamber 12 of the flat tube engages, but on a stiffening web 10 of the flat tube meets between two adjacent chambers. Then, according to FIG. 5, the stiffening web is where the expanding mandrel 84 attacks, with a notch 88 at the free end of the free supernatant 66 provided. This leads to material displacement such that in the area of this as a partition serving stiffening web 10 of the flat tube displaced side walls 88 of the flat tube the undercut form.

Landscapes

  • 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)
EP98925533A 1997-05-07 1998-05-05 Flachrohrwärmetauscher für kraftfahrzeuge mit an krägen eines rohrbodens gehaltenen flachrohren Expired - Lifetime EP0929784B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19719259A DE19719259B4 (de) 1997-05-07 1997-05-07 Flachrohrwärmetauscher für Kraftfahrzeuge mit an Krägen eines Rohrbodens gehaltenen Flachrohren
DE19719259 1997-05-07
PCT/EP1998/002640 WO1998050749A1 (de) 1997-05-07 1998-05-05 Flachrohrwärmetauscher für kraftfahrzeuge mit an krägen eines rohrbodens gehaltenen flachrohren

Publications (2)

Publication Number Publication Date
EP0929784A1 EP0929784A1 (de) 1999-07-21
EP0929784B1 true EP0929784B1 (de) 2002-07-17

Family

ID=7828867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98925533A Expired - Lifetime EP0929784B1 (de) 1997-05-07 1998-05-05 Flachrohrwärmetauscher für kraftfahrzeuge mit an krägen eines rohrbodens gehaltenen flachrohren

Country Status (6)

Country Link
US (1) US6142217A (pt)
EP (1) EP0929784B1 (pt)
CN (1) CN1225719A (pt)
BR (1) BR9804886A (pt)
DE (1) DE19719259B4 (pt)
WO (1) WO1998050749A1 (pt)

Families Citing this family (18)

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Publication number Priority date Publication date Assignee Title
DE19752139B4 (de) 1997-11-25 2004-06-03 Behr Gmbh & Co. Wärmeübertrager für ein Kraftfahrzeug
DE19826881B4 (de) * 1998-06-17 2008-01-03 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Verdampfer
FR2803378B1 (fr) * 1999-12-29 2004-03-19 Valeo Climatisation Echangeur de chaleur a tubes a plusieurs canaux, en particulier pour vehicule automobile
FR2807506B1 (fr) * 2000-04-11 2002-05-31 Peugeot Citroen Automobiles Sa Radiateur de refroidissement d'un moteur de vehicule automobile
JP2002130979A (ja) * 2000-10-25 2002-05-09 Showa Denko Kk 熱交換器
DE10226753A1 (de) * 2002-06-14 2004-01-08 Behr Gmbh & Co. Wärmetauscher
DE10343239B4 (de) * 2003-09-17 2021-09-09 Mahle International Gmbh Wärmeübertrager
EP1728038B1 (de) * 2004-03-05 2011-07-27 Behr GmbH & Co. KG Vorrichtung zum austausch von wärme und verfahren zu deren herstellung
DE102004027402A1 (de) * 2004-06-04 2005-12-22 Behr Gmbh & Co. Kg Wärmetauscher
ES2263394B1 (es) * 2006-02-01 2007-11-16 Sener, Ingenieria Y Sistemas, S.A. Colector de seccion transversal variable y pared delgada para paneles de absorcion solar.
GB2453128A (en) * 2007-09-26 2009-04-01 Intelligent Energy Ltd End plate of a heat exchanger
JP2011523016A (ja) * 2008-06-09 2011-08-04 アー − ヒート アライド ヒート イクスチェンジ テクノロジー アクチェンゲゼルシャフト 熱交換器ブロック及び熱交換器ブロックを湿潤する方法
US9267737B2 (en) 2010-06-29 2016-02-23 Johnson Controls Technology Company Multichannel heat exchangers employing flow distribution manifolds
US9151540B2 (en) 2010-06-29 2015-10-06 Johnson Controls Technology Company Multichannel heat exchanger tubes with flow path inlet sections
CN102095329A (zh) * 2011-03-15 2011-06-15 上海威乐汽车空调器有限公司 一种平行流蒸发器用集液管结构
US20150211807A1 (en) * 2014-01-29 2015-07-30 Trane International Inc. Heat Exchanger with Fluted Fin
JP2020085288A (ja) * 2018-11-20 2020-06-04 株式会社デンソー 熱交換器
DE102020202962A1 (de) * 2020-03-09 2021-09-09 Hanon Systems Sammler eines Wärmeübertragers für ein Fahrzeug und derartiger Wärmeübertrager

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DE2448332C2 (de) * 1974-10-10 1983-11-10 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Wärmetauscher für Fahrzeuge
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JPS63127094A (ja) * 1986-11-14 1988-05-30 Showa Alum Corp 熱交換器
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FR2740869B1 (fr) * 1995-11-02 1997-12-19 Valeo Thermique Moteur Sa Echangeur de chaleur a tubes de section ovale ou oblongue et son procede d'assemblage

Also Published As

Publication number Publication date
DE19719259A1 (de) 1998-11-12
WO1998050749A1 (de) 1998-11-12
DE19719259B4 (de) 2005-08-18
US6142217A (en) 2000-11-07
BR9804886A (pt) 1999-08-31
CN1225719A (zh) 1999-08-11
EP0929784A1 (de) 1999-07-21

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