EP1712866B1 - Condenseur et collecteur d'un condenseur - Google Patents

Condenseur et collecteur d'un condenseur Download PDF

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Publication number
EP1712866B1
EP1712866B1 EP06002769A EP06002769A EP1712866B1 EP 1712866 B1 EP1712866 B1 EP 1712866B1 EP 06002769 A EP06002769 A EP 06002769A EP 06002769 A EP06002769 A EP 06002769A EP 1712866 B1 EP1712866 B1 EP 1712866B1
Authority
EP
European Patent Office
Prior art keywords
condenser
manifold
flat pipes
condenser according
floor
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.)
Active
Application number
EP06002769A
Other languages
German (de)
English (en)
Other versions
EP1712866A1 (fr
Inventor
Martin Dipl.-Ing. Kaspar
Kurt Dr.-Ing. Molt
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 EP1712866A1 publication Critical patent/EP1712866A1/fr
Application granted granted Critical
Publication of EP1712866B1 publication Critical patent/EP1712866B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—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
    • 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
    • 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
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • the invention relates to a condenser for cooling a coolant according to the preamble of claim 1.
  • a condenser for cooling a coolant according to the preamble of claim 1.
  • Such a condenser is, for example, in WO 02/0 12 816 shown.
  • Capacitors or heat exchangers as used for example for air conditioning systems of a motor vehicle, usually comprise a plurality of parallel flat tubes whose ends are arranged on both sides in passages of two opposing manifolds.
  • the refrigerant to be cooled or cooling medium is introduced by means of a supply into a collecting pipe, flows through the flat tubes with release of heat and is removed again through a removal opening from one of the manifolds.
  • the refrigerant-carrying internal cross-section in a header of a thermal condenser should preferably be designed so that the flow resistance is as low as possible in order to minimize the internal pressure drop for efficient operation. Furthermore, the total internal volume of the manifold should be as low as possible to the total mass of the refrigerant, and thus of the vehicle, to minimize.
  • the analogous weight argument also applies to the material feed of the manifold.
  • dead water areas are, for example undercuts or pockets in the interior of the manifold.
  • common flat-tube condensers with regard to the refrigerant-carrying parts consist of a network of parallel flat tubes and two opposite collecting tubes.
  • the flat tubes are in this case inserted in a plurality of lateral transverse slots or passages of the manifolds.
  • the refrigerant is meandering passed through different groups of flat tubes, which results locally a longitudinal flow in the interior of the headers.
  • a condenser for cooling a coolant with a multiplicity of flat tubes arranged in parallel is known, the ends of each of which open into one of two opposing headers.
  • the flat tubes of the known capacitor do not protrude into the headers, which leads to a more cost-intensive production due to the adaptation of the contour of the flat tubes to the bottom shape of the header.
  • the invention is therefore an object of the invention to provide a manifold for a generic capacitor and such a capacitor in which the obstructed by flat tubes manifold cross-section is minimized.
  • the collecting pipe comprises a lid and a bottom, wherein the bottom has a plurality of passages for receiving substantially parallel arranged flat tubes, lies the quotient X. from the remaining free inner cross-sectional area of the manifold with inserted flat tubes to the blocked by the inserted flat tubes manifold cross-sectional area in the interval 1.5 ⁇ X ⁇ 3.5.
  • the manifold is made in two pieces and consists of two curved half-shells, namely the lid and the bottom, which are pushed one inside the other.
  • manifolds are also used, which are manufactured from one piece by a suitable method, for example by extrusion.
  • the lid has a substantially semicircular shape while the bottom has a flattened shape.
  • the flattened shape of the effective insertion depth of the flat tubes is reduced in the manifold, thereby reducing the depth of dead water areas in the manifold between the flat tubes, while the free flow area between the lid and flat tubes remains unchanged by the flattening of the soil.
  • the flattened shape of the bottom reduces the material cost of producing the same, and thus weight and cost.
  • the flattening of the bottom shape a smaller length of the flat tubes inserted into the headers, which means at the same outer dimension of the condenser, that an additionally usable flat pipe section for the condensate network is free, creating more air-side heat exchange surface is available.
  • the wall thickness of the soil is 0.8 to 1.2 mm.
  • characteristic values ⁇ 1.5 for round bottom headers are achieved.
  • Key figure values> 3.5 can only be achieved with high material thickness for the ground, since the bending stress in the soil increases sharply with increasing flattening.
  • a capacitor according to the invention has a plurality of substantially parallel flat tubes, which are arranged on both sides in passages of two opposing collecting tubes according to the invention, as described above.
  • the flat tubes have a straight cutting edge and, more preferably, at least one partition wall is arranged in the collecting tubes, whereby the refrigerant is passed through the flat tubes in meandering fashion.
  • the headers and the flat tubes of a capacitor according to the invention are made of aluminum and / or an aluminum alloy.
  • the inventive manifold and the corresponding capacitor results in an increase in performance by reducing the refrigerant side pressure drop in the condenser and increasing the usable network height with constant outside dimensions of the capacitor. Furthermore, there is a reduction in the weight of the condenser by the flattening of the bottom and a reduction in the total amount of refrigerant.
  • Fig. 1 shows a conventional collection tube 1 in two-piece version, consisting of a cover 2 and a bottom 3, whose cross-sections are substantially semicircular.
  • the flat tube 4 By inserting the flat tube 4 in the bottom 3, the total cross-sectional area of the manifold 1 is divided into a free inner cross-sectional area A, as well as a through the inserted flat tube obstructed inner cross-sectional area B of the manifold 1.
  • the other dimensions are a tube thickness of 19.4 mm with a bottom wall thickness of 1.2 mm.
  • Fig. 2a shows a first embodiment of the collection tube according to the invention, in which the radius of curvature of the bottom is 13 mm. This results in a total height of 16 mm, a free cross-sectional area of 126 mm 2 against a covered by the inserted flat tube 4 cross-sectional area of 57 mm 2 , resulting in a ratio of 2.2.
  • the thickness of the floor is 1 mm.
  • Fig. 3 shows a condenser 10 for cooling a coolant, as used for example in an air conditioning system of a motor vehicle, with a left and a right manifold 1, 1 ', in which flat tubes 4 are inserted in passages, not shown.
  • the left header 1 has an inlet 11 and the right header 1 'has an outlet 12 for the cooling liquid.
  • heat conducting plates (not shown) can still be mounted in order to maximize the removal of the heat of the coolant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Claims (9)

  1. Condenseur (10) servant au refroidissement d'un fluide frigorigène et comprenant un tube collecteur (1, 1'), un couvercle (2) et un fond (3), où le fond (3) présente une multiplicité de passages pour le logement de tubes plats (4),
    caractérisé en ce que le quotient X de la surface de section intérieure libre (A) du tube collecteur, qui subsiste après introduction des tubes plats, sur la surface de section de tube collecteur (B) bouchée par les tubes plats introduits, se situe dans l'intervalle de valeurs où X est inférieur ou égal à 1,5, inférieur ou égal à 3,5.
  2. Condenseur selon la revendication 1, caractérisé en ce que le tube collecteur (1, 1') est réalisé en comportant deux éléments.
  3. Condenseur selon la revendication 1, caractérisé en ce que le tube collecteur (1, 1') est réalisé en comportant un seul et même élément.
  4. Condenseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le couvercle (2) présente, en section, sensiblement une forme de demi-cercle, le fond (3) présentant une forme aplatie.
  5. Condenseur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'épaisseur de paroi du fond (3) est comprise entre 0,8 mm et 1,2 mm.
  6. Condenseur selon l'une quelconque des revendications précédentes, qui est configuré en comportant une multiplicité de tubes plats (4) disposés sensiblement de façon parallèle, tubes plats qui sont disposés, sur les deux côtés, dans les passages de deux tubes collecteurs (1, 1') placés à l'opposé l'un de l'autre.
  7. Condenseur selon la revendication 6, caractérisé en ce que les tubes plats (4) présentent une arête de coupe rectiligne.
  8. Condenseur selon l'une des revendications 6 ou 7, caractérisé en ce qu'au moins une paroi de séparation est disposée dans les tubes collecteurs (1, 1'), grâce à quoi le fluide frigorigène est dirigé, en forme de méandres, à travers les tubes plats (4).
  9. Condenseur selon l'une des revendications 6 ou 7, caractérisé en ce que les tubes collecteurs (1, 1') et les tubes plats (4) sont fabriqués en aluminium et / ou dans un alliage d'aluminium.
EP06002769A 2005-04-12 2006-02-10 Condenseur et collecteur d'un condenseur Active EP1712866B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005016941A DE102005016941A1 (de) 2005-04-12 2005-04-12 Sammelrohr eines Kondensators und Kondensator mit einem solchen Sammelrohr

Publications (2)

Publication Number Publication Date
EP1712866A1 EP1712866A1 (fr) 2006-10-18
EP1712866B1 true EP1712866B1 (fr) 2010-04-21

Family

ID=36677110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06002769A Active EP1712866B1 (fr) 2005-04-12 2006-02-10 Condenseur et collecteur d'un condenseur

Country Status (3)

Country Link
EP (1) EP1712866B1 (fr)
AT (1) ATE465383T1 (fr)
DE (2) DE102005016941A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2973492B1 (fr) 2011-03-31 2017-12-15 Valeo Systemes Thermiques Boite collectrice pour echangeur thermique notamment pour vehicule automobile, et echangeur thermique correspondant

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152339A (en) * 1990-04-03 1992-10-06 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US5307870A (en) * 1991-12-09 1994-05-03 Nippondenso Co., Ltd. Heat exchanger
JP3575497B2 (ja) * 1994-10-06 2004-10-13 株式会社デンソー 受液器一体型冷媒凝縮器およびその製造方法
JP3664783B2 (ja) * 1995-10-20 2005-06-29 昭和電工株式会社 凝縮器
DE69717408T2 (de) * 1996-12-25 2003-06-26 Calsonic Kansei Corp Kondensatorzusammenbaustruktur
JP3760571B2 (ja) * 1997-06-24 2006-03-29 株式会社デンソー 熱交換器
DE19918616C2 (de) * 1998-10-27 2001-10-31 Valeo Klimatechnik Gmbh Verflüssiger zum Kondensieren des inneren Kältemittels einer Kraftfahrzeugklimatisierung
IT1305076B1 (it) * 1998-12-23 2001-04-10 Magneti Marelli Climat Srl Condensatore per impianti di condizionamento d'aria per veicoli.
CN1293359C (zh) * 2000-08-04 2007-01-03 昭和电工株式会社 换热器
JP4767408B2 (ja) * 2000-12-26 2011-09-07 株式会社ヴァレオジャパン 熱交換器
DE10212306A1 (de) * 2002-03-20 2003-10-02 Behr Lorraine S A R L Europole Gelöteter Wärmeübertrager
FR2871224B1 (fr) * 2004-06-02 2007-02-16 Valeo Thermique Moteur Sas Boite collectrice munie de butees pour tubes d'echangeur de chaleur et son procede d'assemblage

Also Published As

Publication number Publication date
DE102005016941A1 (de) 2006-10-19
EP1712866A1 (fr) 2006-10-18
ATE465383T1 (de) 2010-05-15
DE502006006749D1 (de) 2010-06-02

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