EP1558887B1 - Echangeur de chaleur a passes multiples, en particulier pour vehicule automobile - Google Patents

Echangeur de chaleur a passes multiples, en particulier pour vehicule automobile Download PDF

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Publication number
EP1558887B1
EP1558887B1 EP03786005A EP03786005A EP1558887B1 EP 1558887 B1 EP1558887 B1 EP 1558887B1 EP 03786005 A EP03786005 A EP 03786005A EP 03786005 A EP03786005 A EP 03786005A EP 1558887 B1 EP1558887 B1 EP 1558887B1
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EP
European Patent Office
Prior art keywords
heat exchanger
tubes
manifold
compartment
collector box
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
EP03786005A
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German (de)
English (en)
French (fr)
Other versions
EP1558887A2 (fr
Inventor
Sylvain Moreau
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 Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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Publication date
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Publication of EP1558887A2 publication Critical patent/EP1558887A2/fr
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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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • 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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/067—Details
    • 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

Definitions

  • the invention relates to heat exchangers, in particular for motor vehicles.
  • a heat exchanger of the type comprising a collector in which are received the ends of at least one row of tubes, and a collector box which covers the collector and which has a longitudinal partition whose free edge is in contact with the collector to delimit a first compartment and a second compartment into which at least a portion of the tubes respectively open.
  • the heat exchanger includes a first manifold / header assembly at a first end of the tube bundle and a second manifold / header assembly at a second end of the bundle of tubes.
  • Such a heat exchanger may comprise, for example, a first row of tubes and a second row of tubes which open respectively into the first compartment and the second compartment.
  • the fluid that flows through the tubes of the bundle usually circulates in several passes in the first row of tubes, usually with countercurrent flows, to then gain the second row of tubes where it usually circulates in several passes and against the current. .
  • the heat exchanger may comprise a single row of tubes which each delimit a plurality of fluid flow channels.
  • a first portion and a second portion of the channels of each tube can lead respectively into the first compartment and the second compartment.
  • this passage is usually made through one or more openings in the longitudinal partition, as taught for example by the publication US 2002/0066553 .
  • the passage of a longitudinal compartment to another longitudinal compartment that corresponds to the function "change tablecloth” is made through the longitudinal partition through openings formed through it.
  • the term "web” may refer both to a row of tubes (usually in a multi-row tube heat exchanger) and to a portion of the tubes of a row (usually in the case of a heat exchanger). of heat to a single row of tubes).
  • the object of the invention is in particular to overcome this disadvantage.
  • this solution applies to different types of heat exchangers, whether they are exchangers with a single row of tubes, two rows of tubes, or more than two rows of tubes.
  • the invention proposes for this purpose a heat exchanger of the type defined above, wherein the collector comprises at least one deformation to form at least one communication passage between the first compartment and the second compartment.
  • the deformation of the collector may have different shapes. However, preferably, it is constituted by at least one recessed region which is remote from the free edge of the longitudinal partition.
  • a communication passage is formed which extends between this hollow region of the collector and the partition, which allows the fluid to pass under the longitudinal partition, without crossing.
  • This solution is particularly advantageous because it allows this communication passage through a collector arrangement that can be achieved in a simple manner.
  • At least one communication path is provided in an end region of the compartments.
  • At least one communication passage defines a calibrated passage section.
  • This calibration makes it possible to minimize the pressure drops of the fluid passing through this section.
  • the calibration of these also allows to control the flow rate through each opening. This balances the flow rates through the different tubes of the exchanger.
  • the manifold and the manifold are formed of two separate parts.
  • the collector is preferably made in the form of a metal plate in which the recessed region is formed by stamping.
  • the manifold is a constant section form incorporating the longitudinal partition.
  • This form can be obtained by extrusion or drawing of a material, preferably metal, or by molding a material, preferably a plastic material.
  • the manifold and the header are formed in one piece.
  • the collector and the header are formed from a metal sheet having a central portion forming the collector, including its recessed region, and two marginal portions bent towards the central portion for contribute to delimit the compartments and to train jointly the longitudinal partition.
  • the recessed region of the collector is advantageously formed by stamping the central portion of the metal sheet.
  • the invention can be applied, for example, to a heat exchanger comprising a first row of tubes and a second row of tubes which open respectively into the first compartment and into the second compartment.
  • a heat exchanger comprising a single row of tubes each delimiting a plurality of fluid circulation channels, a first portion and a second portion of the channels of each tube opening respectively in the first compartment and in the second compartment.
  • the invention applies in particular to a heat exchanger in which the tubes are flat tubes, the exchanger further comprising corrugated spacers in contact with the tubes.
  • the heat exchanger of the invention is advantageously made in the form of an evaporator for an air conditioning circuit of a motor vehicle.
  • this application is not limiting, and the heat exchanger can also be used to form an air conditioning condenser or a radiator for cooling a motor vehicle engine, or a heating radiator. a passenger compartment of a motor vehicle.
  • the heat exchanger shown on the figure 1 comprises a beam 10 formed of a first row of tubes 12 which constitutes a first ply (here directed towards the front) and a second row of tubes 14 which constitutes a second ply (here directed towards the rear). These flat tubes are arranged parallel to each other, each tube of a first row being aligned with a corresponding tube of the second row. Corrugated inserts 16 forming heat exchange surfaces are in mechanical and thermal contact with the respective tubes of the two rows.
  • the tubes 12 and 14 are obtained by extrusion of a metallic material, advantageously based on aluminum, and they each comprise a multiplicity of interior channels, which is better seen on the detail of the figure 2 , for the circulation of a fluid.
  • This exchanger can in particular be made in the form of an evaporator for an air conditioning circuit, the fluid flowing through the tubes then being a refrigerant fluid.
  • the ends of the tubes 12 and 14 are received on the one hand in a manifold 18 (here in the upper part) capped by a manifold 20 and on the other hand in a manifold 22 (here at the bottom) capped by a box
  • the collector 18 is a generally rectangular metal plate having a generally flat bottom 26 which is folded at both ends to form two upstanding edges 28 and 30.
  • the bottom 26 of the collector 18 is pierced with apertures of appropriate shape which respectively receive the ends of the tubes 12 and 14.
  • the bottom 26 of the collector protrudes from the beam 10 (on the left side of the figure 1 ) to form an extension in which are arranged an inlet port 32 and an outlet port 34 for the fluid flowing in the exchanger.
  • These two orifices 32 and 34 are spaced in the transverse direction, the orifice 32 being situated on the side of the row of tubes 12 and the orifice 34 on the side of the row of tubes 14.
  • the collecting box 20, which forms a lid, is constituted here of an extruded profile, advantageously made of metallic material, for example based on aluminum.
  • This profile is shaped and has a constant section which has the shape of a double U formed by a first U-shaped wall 36 located on the side of the tubes 12 and a second U-shaped wall 38 located on the side of the tubes 14.
  • the junction between the two walls forms a partition 40 having a free edge 42 adapted to come into sealing contact with the bottom 26 of the manifold in a region between the row of tubes 12 and the row of tubes 14.
  • the contact zone is designated by the reference 44.
  • the assembly delimits two longitudinal chambers on either side of the partition 40, a first chamber communicating with the tubes 12 and a second chamber communicating with the tubes 14.
  • These two longitudinal chambers are themselves divided, in the length direction, by a transverse partition 46.
  • the two longitudinal chambers are divided into four compartments: a compartment 48 in which opens a portion P1 of the tubes 12 (here consisting of fifteen tubes), a compartment 50 into which opens a second portion P2 of the tubes 12 (here composed of fifteen tubes 12).
  • the wall 38 delimits, in conjunction with the transverse partition 46, a compartment 52 into which a portion of the tubes 14 (here fifteen in number) and one compartment 54 into which a portion of the tubes 14 (here at number of fifteen).
  • the manifold 24 covering the manifold 22 is similar to the manifold 20, which allows to use the same type of profile. This manifold thus delimits two longitudinal chambers which, unlike the upper manifold 20, are not divided by a transverse partition.
  • the fluid enters the compartment 48 through the inlet port 32, circulates in the tubes 12 of the P1 part to gain a first longitudinal chamber of the manifold 24 and reach the tubes 12 of the P2 part. From there, the fluid gains the compartment 50. It then gains the compartment 52 in the transverse direction, by particular arrangements that will be described later. The fluid circulates in one part of the tubes 14 to reach the second longitudinal chamber of the manifold 24 and then circulate in another part of the tubes 14 to reach the compartment 54. Finally, the fluid leaves the exchanger through the outlet orifice 34.
  • the bottom 26 of the collector comprises a deformed region, here a hollow 56 which has the shape of a bowl of substantially rectangular contour and which is situated on the side of the erected rim 30.
  • this hollow region open, in the example, Seven tubes 12 and seven tubes 14.
  • the free edge 42 of the partition is no longer in contact with the bottom 26 of the collector, which thus delimits a communication passage 58 between the compartments 50. and 52 as illustrated by the arrows F on the figure 2 .
  • the communication passage 58 has a calibrated passage section determined inter alia by the distance between the free edge 42 of the partition 40 and the recessed region 56.
  • the exchanger of figures 1 and 2 is formed only from metal components that can be soldered in a single operation in a suitable soldering furnace.
  • the metal components are coated with solder plating, as is well known in the art.
  • manifold 20 could be crimped on the manifold 18 by appropriate means, for example by tabs from the manifold and bearing on the edges of the manifold.
  • the latter could, alternatively, be made of plastic.
  • manifold assembly 18 / manifold 20 in one piece.
  • a metal sheet 60 having a central portion 62 for forming the collector and two marginal portions 64 intended to be folded towards the central portion. These two marginal portions have respective free edges 66 which are applied against the central portion 62 to jointly form a central partition 40.
  • the central portion 62 is deformed, preferably by stamping, to form the recessed region 56 and thus the communication passage 58 communicating the two compartments adjacent.
  • the heat exchanger shown in Figures 4 and 5 is similar to that of figures 1 and 2 except that it comprises here a single row of tubes 70, here flat tubes, between which are arranged corrugated tabs 12.
  • the tubes 70 are called “multi-channel tubes” because they each delimit a plurality of fluid circulation channels 72 which extend parallel to each other. These tubes are made by extrusion.
  • the channels 72 of each tube 70 are divided into two parts N1 and N2 which, in the example, comprise the same number of channels. These two parts N1 and N2 are separated by an interval 74, which is substantially in the middle of the tube, and which is devoid of channels.
  • the collector 18 here receives a collecting box 20 similar to that of the figures 1 and 2 .
  • the free edge 42 of the partition comes to rest on the respective intervals 74 of the tubes 70 which open into the recessed region 56.
  • the first parts N1 of the tubes 70 and the second parts N2 of the tubes 70 respectively constitute two plies which respectively open into compartments 50 and 52 similar to those described previously with reference to the figures 1 and 2 .
  • the fluid can thus pass from the first ply to the second ply or vice versa via the recessed region 56.
  • each manifold / header assembly may be formed of two parts or a single part as mentioned above. It is also possible to provide that the exchanger comprises more than two rows of tubes and that several communication passages are provided in the same manifold / collection box.
  • the invention finds particular application to heat exchangers for motor vehicles.
  • one of the preferred applications is that of an evaporator for an air conditioning circuit.
  • other exchangers can be made according to this technique.

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)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP03786005A 2002-11-08 2003-11-10 Echangeur de chaleur a passes multiples, en particulier pour vehicule automobile Expired - Lifetime EP1558887B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0214042 2002-11-08
FR0214042A FR2847031B1 (fr) 2002-11-08 2002-11-08 Echangeur de chaleur a passes multiples, en particulier pour vehicule automobile
PCT/FR2003/003344 WO2004044513A2 (fr) 2002-11-08 2003-11-10 Echangeur de chaleur à passes multiples, en particulier pour véhicule automobile

Publications (2)

Publication Number Publication Date
EP1558887A2 EP1558887A2 (fr) 2005-08-03
EP1558887B1 true EP1558887B1 (fr) 2008-07-09

Family

ID=32116496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03786005A Expired - Lifetime EP1558887B1 (fr) 2002-11-08 2003-11-10 Echangeur de chaleur a passes multiples, en particulier pour vehicule automobile

Country Status (8)

Country Link
EP (1) EP1558887B1 (ja)
JP (1) JP2006505759A (ja)
AT (1) ATE400783T1 (ja)
AU (1) AU2003295013A1 (ja)
DE (1) DE60322090D1 (ja)
ES (1) ES2309381T3 (ja)
FR (1) FR2847031B1 (ja)
WO (1) WO2004044513A2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105333649A (zh) * 2014-08-08 2016-02-17 杭州三花研究院有限公司 一种换热器以及该换热器的制造方法
US10161686B2 (en) 2009-04-13 2018-12-25 Carrier Corporation Microchanel heat exchanger evaporator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100460783C (zh) * 2005-11-20 2009-02-11 陈苏红 汽车空调装置的组合式集流管
FR2965606B1 (fr) * 2010-09-30 2015-04-17 Valeo Systemes Thermiques Echangeur de chaleur pour vehicule automobile
WO2012065999A2 (en) 2010-11-15 2012-05-24 GRÜNDLER GmbH Methods and devices in the field of treatment with medical gases

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US66553A (en) 1867-07-09 Improved washing machine
US5327959A (en) * 1992-09-18 1994-07-12 Modine Manufacturing Company Header for an evaporator
DE19826881B4 (de) * 1998-06-17 2008-01-03 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Verdampfer
FR2793014B1 (fr) * 1999-04-28 2001-07-27 Valeo Thermique Moteur Sa Echangeur de chaleur pour fluide sous pression elevee
FR2793016B1 (fr) * 1999-04-30 2001-09-07 Valeo Climatisation Boite collectrice allongee pour echangeur de chaleur resistant aux fortes pressions internes
DE10056074B4 (de) * 2000-11-07 2017-03-23 Mahle International Gmbh Wärmeübertrager

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10161686B2 (en) 2009-04-13 2018-12-25 Carrier Corporation Microchanel heat exchanger evaporator
CN105333649A (zh) * 2014-08-08 2016-02-17 杭州三花研究院有限公司 一种换热器以及该换热器的制造方法
CN105333649B (zh) * 2014-08-08 2019-10-15 杭州三花研究院有限公司 一种换热器以及该换热器的制造方法

Also Published As

Publication number Publication date
FR2847031A1 (fr) 2004-05-14
DE60322090D1 (de) 2008-08-21
AU2003295013A1 (en) 2004-06-03
WO2004044513A3 (fr) 2004-06-24
AU2003295013A8 (en) 2004-06-03
ES2309381T3 (es) 2008-12-16
ATE400783T1 (de) 2008-07-15
JP2006505759A (ja) 2006-02-16
WO2004044513A2 (fr) 2004-05-27
EP1558887A2 (fr) 2005-08-03
FR2847031B1 (fr) 2005-02-11

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