US20160377357A1 - Collection box and corresponding heat exchanger - Google Patents

Collection box and corresponding heat exchanger Download PDF

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Publication number
US20160377357A1
US20160377357A1 US15/104,035 US201415104035A US2016377357A1 US 20160377357 A1 US20160377357 A1 US 20160377357A1 US 201415104035 A US201415104035 A US 201415104035A US 2016377357 A1 US2016377357 A1 US 2016377357A1
Authority
US
United States
Prior art keywords
collection box
flanges
header
heat exchanger
corrugations
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.)
Abandoned
Application number
US15/104,035
Other languages
English (en)
Inventor
Christian Riondet
Jean-Marc Lesueur
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
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 Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Assigned to VALEO SYSTEMES THERMIQUES reassignment VALEO SYSTEMES THERMIQUES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LESUEUR, JEAN-MARC, RIONDET, CHRISTIAN
Publication of US20160377357A1 publication Critical patent/US20160377357A1/en
Abandoned 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • 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
    • F28F9/0243—Header boxes having a 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for 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
    • 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
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts

Definitions

  • the invention relates to a collection box for a heat exchanger, particularly for a motor vehicle.
  • the invention also relates to a corresponding heat exchanger.
  • a heat exchanger is, for example, used in a motor vehicle, notably as a radiator for the cooling system, or in high-pressure applications, for example as a condenser for an air conditioning system.
  • such a heat exchanger comprises a core bundle of tubes and at least one collection box.
  • This collection box is configured to accept the ends of the tubes of the heat exchanger.
  • the collection box generally comprises a header, for example in the form of a header plate.
  • the collection box generally also comprises a cover that fixes to the header plate to close the collection box.
  • the header plate allows the fluid to be distributed to the heat exchange tubes or allows the fluid from these heat exchange tubes to be collected.
  • the header plate is generally made of aluminum and may for example be produced by stamping.
  • the header plate generally has a flat bottom.
  • the header in applications intended to withstand pressure, it is known practice for the header to have an at least partially rounded bottom in order to withstand the pressure.
  • the flat-bottomed or dished-bottomed header plate is usually provided with flanges surrounding openings through which the ends of the tubes of the core bundle of the heat exchanger pass.
  • the openings such as slots are made in the header plate for the introduction of the tubes, for example with a removal of material or, on the other hand, without removing material. In the latter case, the material is pushed by the tooling towards the inside of the volume defined by the collection box, thus creating a flange around the opening for the introduction of the tube. These are referred to as standard flanges.
  • the flanges make it possible to ensure contact between the tube and the opening in the header plate and to obtain high-quality brazing in the case of brazed, for example all-aluminum, exchangers.
  • the tubes are generally inserted into the opening in the same direction as the tooling used to create the flanges around the openings.
  • the inserted tubes generally extend partially into the collection box in order to guarantee correct brazing and firm and leaktight assembly. With certain solutions, the tubes protrude into the volume forming a reservoir for the fluid by almost half the volume of the collection box.
  • a flat-bottomed collection box may have flanges referred to as reverse flanges which means to say flanges produced in the opposite direction to the direction of insertion of a heat-exchange tube.
  • the flanges than have a flared shape facing away from the volume defined by the collection box.
  • such reverse flanges are only very slightly flared, which in other words means that the known reverse flanges define a small entry cone for the insertion of the heat-exchange tubes.
  • the entry cone may therefore not be enough to allow the heat-exchange tubes to be inserted simply, and the solutions known from the prior art may present difficulties with inserting the heat-exchange tubes into the header.
  • one subject of the invention is a collection box for a heat exchanger comprising a header having an at least partially rounded shape and comprising a plurality of openings for the passage of a plurality of heat-exchange tubes of the heat exchanger, and a plurality of flanges surrounding the openings, characterized in that the header further comprises a plurality of corrugations, and in that the flanges are created at the corrugations of the header and respectively have a substantially flared shape directed away from the volume defined by the collection box.
  • the flanges are formed at the crests of the corrugations facing away from the volume defined by the collection box.
  • Such an at least partially rounded box is suited to withstanding pressure in high-pressure applications, and the header with such reverse flanges, namely flanges facing in the opposite direction to the usual direction of insertion of the tubes, is able to accept the ends of the tubes which, previously, would have projected into the volume defined by the collection box.
  • the ends of the tubes therefore no longer open into the volume defined by the collection box. This results in a significant reduction in the pressure drop associated with the flow of a fluid through the tubes of the heat exchanger.
  • the reverse flanges define a substantially tulip-shaped inlet opening for the insertion of the heat exchange tubes that is wide enough because of this addition of material.
  • Said collection box may further comprise one or more of the following features considered separately or in combination:
  • the invention also relates to a heat exchanger, particularly for motor vehicles, comprising a heat-exchange core bundle of tubes, the ends of which are fixed to at least one collection box, as defined hereinabove.
  • This may be a brazed heat exchanger.
  • it may be a heat exchanger of which the elements that form the collection box are mechanically assembled to one another.
  • the heat-exchange tubes have a height comprised between 0.8 mm et 2.5 mm, preferably between 1.2 mm and 1.8 mm.
  • the pitch of the heat-exchange tubes which means to say the center-distance between two heat-exchange tubes, is, for example, comprised between 5 mm and 10 mm, preferably between 6 mm and 8 mm.
  • FIG. 1 is a perspective view of a collection box according to the invention for a heat exchanger
  • FIG. 2 is a partial view in cross section of the collection box of FIG. 1 accepting an end of a partially depicted tube of a core bundle of tubes of the heat exchanger,
  • FIG. 3 is a side view in cross section of the header of FIG. 1 ,
  • FIG. 4 a is a first perspective view of a header of the collection box of FIGS. 1 to 3 ,
  • FIG. 4 b is a second perspective view of the header of the collection box of FIGS. 1 to 3 ,
  • FIG. 5 is a view in transverse section of the header of FIGS. 4 a and 4 b.
  • FIG. 6 is an enlarged view of the header of FIG. 5 accepting ends of tubes of the heat exchanger.
  • FIG. 1 schematically and in simplified form depicts a fluid collection box 1 for a heat exchanger (not depicted), notably in the automotive field.
  • the heat exchanger may be used in particular as a radiator or as a condenser for a motor vehicle.
  • the invention may be applied to a brazed heat exchanger.
  • the heat exchanger comprises a core bundle of tubes 3 . Only one end of one tube 3 is visible in FIG. 2 .
  • the tubes 3 are for example made of aluminum or aluminum alloy. They are, for example, substantially flattened tubes 3 .
  • the collection box 1 is configured to accept at least one end of a tube 3 of the heat exchanger, more specifically to accept the ends of a multiplicity of tubes 3 of the heat exchanger (which is not illustrated). Only one end of one tube 3 is visible in FIG. 2 .
  • the collection box 1 for this purpose comprises a header 5 .
  • the collection box 1 also comprises a cover 6 fixed to the header 5 so as to close the collection box 1 .
  • the header 5 is, for example, made of aluminum or of aluminum alloy.
  • the cover 6 for its part may be made of aluminum of aluminum alloy or, as an alternative, of plastic.
  • the cover 6 may be fixed to the header 5 for example by clip-fastening, by brazing or even by crimping.
  • the header 5 comprises a plurality of openings 7 for the passage of the ends of the tubes 3 .
  • the openings 7 have, for example, a substantially elongate shape, like slots.
  • the ends of the tubes 3 accepted into the openings 7 may then be brazed for example to the header 5 .
  • the heat exchange tubes 3 have a height comprised between 0.8 mm and 2.5 mm, preferably between 1.2 mm and 1.8 mm.
  • the pitch of the heat-exchange tubes 3 which means to say the center-distance between two heat-exchange tubes 3 is, for example, comprised between 5 mm and 10 mm, preferably between 6 mm and 8 mm.
  • the header 5 has a wall 8 forming a box end.
  • the collection box 1 additionally comprises lateral walls 8 ′ connected to this box end 8 .
  • the wall 8 forming the end of the box also referred to as the end wall 8 , has a shape that is substantially dished toward the outside of the volume defined by the collection box 1 .
  • the end wall 8 of the header 5 has a shape that is substantially concave with respect to the interior volume defined by the collection box 1 and substantially convex with respect to the core bundle of tubes 3 of the heat exchanger, with the convexity facing toward the outside of the volume defined by the collection box 1 .
  • the collection box 1 additionally comprises a predefined number of flanges 9 formed on the header 5 at the openings 7 for accepting the ends of the tubes 3 . More specifically, each opening 7 is surrounded by a flange 9 .
  • the flanges 9 are in this instance produced without the removal of material.
  • the header 5 additionally comprises a plurality of deformations 11 .
  • the deformations 11 are created at the substantially dished end wall 8 of the header 5 .
  • the deformations 11 are produced for example in such a way as to form a regular pattern.
  • this pattern is made up of corrugations or waves 11 .
  • the corrugations 11 may be produced symmetrically with respect to the longitudinal axis of the end wall 8 of the header 5 .
  • the corrugations 11 therefore have crests extending alternating on one side and the other of the longitudinal axis of the end wall 8 of the header 5 .
  • the corrugations 11 have, for example, a plurality of crests facing towards the inside of the volume defined by the collection box 1 and a plurality of opposite crests directed away from the volume defined by the collection box and therefore toward the outside of the collection box 1 and toward the core bundle of tubes 3 of the heat exchanger.
  • the flanges 9 are formed at the corrugations 11 , more specifically at the crests of the corrugations 11 facing away from the volume defined by the collection box.
  • the openings 7 are formed by piercing or perforating the header 5 at the crests of the corrugations 11 facing away from the volume defined by the collection box, and the flanges 9 are produced by the material around these openings 7 .
  • the corrugations 11 are created with a sufficient height h (cf FIG. 5 ), for example with a top height h of the order of 30% of the pitch of the tubes.
  • the flanges 9 thus formed face away from the volume defined by the collection box 1 , namely toward the core bundle of tubes 3 of the heat exchanger. They are then referred to as reverse flanges 9 .
  • the flanges 9 have a sufficient height h′ suited to allowing the insertion of the ends of the tubes 3 , for example of the order of half the height h of a corrugation 11 .
  • the flanges 9 have a flared overall shape, such as a tulip shape.
  • the flanges 9 respectively have a substantially conical shape, for example of angle ⁇ of the order of 30° (cf. FIG. 5 ).
  • a flange 9 therefore has two flared edges 9 a, 9 b, corresponding to the two long edges, joined together by two short edges 9 c, 9 d.
  • This flared or substantially conical shape facilitates the introduction of the ends of the tubes 3 into the header 5 , from outside the volume defined by the collection box 1 toward the inside of the volume defined by the collection box 1 .
  • the two flared edges 9 a, 9 b for example have a substantially convex shape with the convexity facing toward the outside of the volume defined by the collection box 1 .
  • the tulip-shaped flanges 9 respectively have:
  • the first width l 1 is substantially equal to or slightly greater than the width of a tube 3 intended to be inserted into the opening 7 .
  • the greatest width l 2 defines the opening 7 surrounded by the flange 9 for the insertion of the end of a tube 3 .
  • the second width l 2 is made wide enough to allow simple and, notably, simultaneous, insertion of the ends of all of the tubes 3 of the heat exchanger (which is not depicted) into the openings 7 .
  • the second width l 2 is, for example, of the order of twice the first width l 1 of the flange 9 .
  • flanges 9 may be thinned with respect to the corrugations 11 on the header 5 .
  • a corrugation 11 has, for example, a first thickness e 1
  • the flange 9 has a second thickness e 2 less than the first thickness e 1 of the corrugation 11 .
  • the flange 9 may just as easily be thinned at the long flared edges 9 a, 9 b as at the short connecting edges 9 c and 9 d.
  • the thinning of material is performed at the flange 9 and may range beyond 30% or even locally beyond 50% of the initial thickness of the material.
  • this flange 9 may be lengthened.
  • a header 5 comprising such reverse flanges 9 facilitates the introduction of the ends of the multiplicity of heat exchange tubes 3 of the heat exchanger simultaneously and simply without requiring any special-purpose tooling notably to guide each tube 3 into the associated opening 7 .
  • the reverse and flared flanges 9 offer enough of an opening for introduction from outside the collection box 1 toward the inside of the volume defined by the collection box 1 .

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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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Air-Conditioning For Vehicles (AREA)
US15/104,035 2013-12-13 2014-10-14 Collection box and corresponding heat exchanger Abandoned US20160377357A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1362571 2013-12-13
FR1362571A FR3015016B1 (fr) 2013-12-13 2013-12-13 Boite collectrice et echangeur thermique correspondant
PCT/EP2014/071941 WO2015086195A1 (fr) 2013-12-13 2014-10-14 Boîte collectrice et échangeur thermique correspondant

Publications (1)

Publication Number Publication Date
US20160377357A1 true US20160377357A1 (en) 2016-12-29

Family

ID=50289932

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/104,035 Abandoned US20160377357A1 (en) 2013-12-13 2014-10-14 Collection box and corresponding heat exchanger

Country Status (7)

Country Link
US (1) US20160377357A1 (fr)
EP (1) EP3080542B1 (fr)
JP (4) JP2017500528A (fr)
KR (1) KR20160098413A (fr)
CN (1) CN106461353B (fr)
FR (1) FR3015016B1 (fr)
WO (1) WO2015086195A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160102925A1 (en) * 2014-10-09 2016-04-14 Enterex America LLC Radiator tank fastening system
US11137211B2 (en) * 2017-03-21 2021-10-05 Denso Corporation Heat exchanger

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017218810A1 (de) * 2017-10-20 2019-04-25 Mahle International Gmbh Sammelkasten eines Wärmeübertragers
DE102018220143A1 (de) 2018-11-23 2020-05-28 Mahle International Gmbh Sammelrohr für einen Wärmeübertrager
DE102018220142A1 (de) 2018-11-23 2020-05-28 Mahle International Gmbh Sammelrohr für einen Wärmeübertrager
DE102018220139A1 (de) 2018-11-23 2020-05-28 Mahle International Gmbh Sammelrohr für einen Wärmeübertrager

Citations (3)

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Publication number Priority date Publication date Assignee Title
US6263570B1 (en) * 1996-03-29 2001-07-24 Valeo Engine Cooling Aktiebolag Heat exchanger and method of producing the same
EP1890102A1 (fr) * 2006-08-09 2008-02-20 Modine Manufacturing Company Plaque tubulaire voûtée pour un bac collecteur d'un échangeur thermique
US20080135220A1 (en) * 2005-02-03 2008-06-12 Behr Gmbh & Co., Kg Heat Exchanger

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US4381033A (en) * 1978-03-07 1983-04-26 Karmazin Products Corporation Header construction
JPH0545487U (ja) * 1991-10-16 1993-06-18 東洋ラジエーター株式会社 熱交換器
US5327959A (en) * 1992-09-18 1994-07-12 Modine Manufacturing Company Header for an evaporator
US5226490A (en) * 1992-10-26 1993-07-13 General Motors Corporation Extruded tank pocket design for separator
DE19844848A1 (de) * 1998-09-30 2000-04-06 Modine Mfg Co Wärmetauscher
DE10016029A1 (de) * 2000-03-31 2001-10-04 Modine Mfg Co Wärmetauscher mit einer Vielzahl von Rohren
JP2003161589A (ja) * 2001-11-21 2003-06-06 Toyo Radiator Co Ltd 空調用プレートフィン型熱交換器
JP2004219044A (ja) * 2002-12-26 2004-08-05 Denso Corp 熱交換器およびコアプレートの製造方法
JP2004301454A (ja) * 2003-03-31 2004-10-28 Calsonic Kansei Corp 熱交換器用のヘッダタンク
CN100541108C (zh) * 2003-08-01 2009-09-16 昭和电工株式会社 集管箱和具有该集管箱的热交换器
US7413006B2 (en) * 2006-04-06 2008-08-19 Modine Manufacturing Company Header plate for use in a heat exchanger
FR2958385B1 (fr) * 2010-03-31 2013-01-18 Valeo Systemes Thermiques Echangeur de chaleur a performances accrues

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6263570B1 (en) * 1996-03-29 2001-07-24 Valeo Engine Cooling Aktiebolag Heat exchanger and method of producing the same
US20080135220A1 (en) * 2005-02-03 2008-06-12 Behr Gmbh & Co., Kg Heat Exchanger
EP1890102A1 (fr) * 2006-08-09 2008-02-20 Modine Manufacturing Company Plaque tubulaire voûtée pour un bac collecteur d'un échangeur thermique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160102925A1 (en) * 2014-10-09 2016-04-14 Enterex America LLC Radiator tank fastening system
US10030918B2 (en) * 2014-10-09 2018-07-24 Enterex America LLC Radiator tank fastening system
US11137211B2 (en) * 2017-03-21 2021-10-05 Denso Corporation Heat exchanger

Also Published As

Publication number Publication date
EP3080542A1 (fr) 2016-10-19
JP2018189363A (ja) 2018-11-29
WO2015086195A1 (fr) 2015-06-18
CN106461353A (zh) 2017-02-22
KR20160098413A (ko) 2016-08-18
JP2022048152A (ja) 2022-03-25
FR3015016A1 (fr) 2015-06-19
EP3080542B1 (fr) 2020-09-02
JP7383687B2 (ja) 2023-11-20
FR3015016B1 (fr) 2019-05-17
JP2020128865A (ja) 2020-08-27
JP2017500528A (ja) 2017-01-05
CN106461353B (zh) 2022-05-03

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AS Assignment

Owner name: VALEO SYSTEMES THERMIQUES, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RIONDET, CHRISTIAN;LESUEUR, JEAN-MARC;REEL/FRAME:039977/0317

Effective date: 20160916

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION