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US20190390917A1 - Heat exchanger header - Google Patents

Heat exchanger header Download PDF

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Publication number
US20190390917A1
US20190390917A1 US16/480,814 US201816480814A US2019390917A1 US 20190390917 A1 US20190390917 A1 US 20190390917A1 US 201816480814 A US201816480814 A US 201816480814A US 2019390917 A1 US2019390917 A1 US 2019390917A1
Authority
US
United States
Prior art keywords
header
header plate
peripheral groove
cover
retaining elements
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
US16/480,814
Other languages
English (en)
Inventor
Andrzej Fudala
Mohamed Asri
Kamel Azzouz
Marcin Malik
Adam Kolacz
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
Publication of US20190390917A1 publication Critical patent/US20190390917A1/en
Assigned to VALEO SYSTEMES THERMIQUES reassignment VALEO SYSTEMES THERMIQUES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Azzouz, Kamel, Fudala, Andrzej, ASRI, MOHAMED, KOLACZ, Adam, MALIK, Marcin
Abandoned 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • 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
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • 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
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

Definitions

  • the invention concerns a heat exchanger header and, more specifically, a header comprising a compressible gasket arranged between a header plate and a cover.
  • Heat exchanger headers generally comprise a header plate through which tubes pass and a cover covering the header plate in order to form a chamber in which a heat transfer fluid can circulate.
  • the header plate generally comprises a peripheral groove inside which a gasket is positioned. The edges of the cover are inserted into the peripheral groove in order to compress the gasket.
  • the attaching of the cover to the header plate in particular by crimping, can cause the gasket to be compressed excessively into the peripheral groove, which can result in it being damaged and thus increase the risk of leaks over time.
  • One of the aims of the present invention is therefore to at least partially overcome the problems of the prior art and propose a header and a heat exchanger with an improved connection between the cover and the header plate.
  • the present invention therefore concerns a header for a heat exchanger comprising:
  • the lateral walls of the cover comprising projecting retaining elements that come to bear on the header plate.
  • These retaining elements form stops and prevent the cover and, more specifically, the ends of the lateral walls of same, from being pressed beyond a certain limit into the peripheral groove. These retaining elements allow the gasket 44 to be compressed sufficiently to provide sealing while ensuring that it is not compressed excessively, which could damage it.
  • the header plate has a generally rectangular shape with two long sides and two short sides, the retaining elements bearing simultaneously on the two long sides and/or the two short sides of said header plate 4 .
  • the retaining elements are produced on the outer face of the lateral walls and come to bear on the outer rim of the peripheral groove.
  • the outer rim of the peripheral groove comprises crimping lugs and the retaining elements come to bear between two crimping lugs.
  • the retaining elements are produced on the inner face of the lateral walls and come to bear on the inner rim of the peripheral groove.
  • the cover on a given side of the header plate, the cover comprises a single continuous retaining element along the length of said side of the header plate.
  • the cover on a given side of the header plate, the cover comprises at least two local retaining elements distributed along the length of said side of the header plate.
  • the local retaining elements are arranged so as to bear on the header plate opposite the spaces between the orifices of said header plate.
  • the retaining elements are integral with the cover.
  • the present invention also concerns a heat exchanger comprising a header as previously described.
  • FIG. 1 shows a schematic view of a heat exchanger
  • FIG. 2 shows a schematic cross-sectional view of the header of the heat exchanger of FIG. 1 ,
  • FIG. 3 shows a perspective view of the connection between the cover and the header plate according to a first embodiment
  • FIG. 4 shows a cross-sectional perspective view of the connection between the cover and the header plate according to a second embodiment
  • FIG. 5 shows a cross-sectional perspective view of the connection between the cover and the header plate according to a variant of the second embodiment
  • FIG. 6 shows a perspective view of the connection between the cover and the header plate according to another variant of the second embodiment.
  • certain elements or parameters may be numbered, for example as a first element or a second element, as a first parameter and a second parameter, or indeed a first criterion and a second criterion, etc.
  • the purpose of this numbering is simply to differentiate between and designate elements, parameters or criteria that are similar but not identical. This numbering does not imply priority of one element, parameter or criterion over another, and such designations can easily be interchanged without departing from the context of the present description. Nor does this numbering imply an order in time, for example in terms of appraising such or such criteria.
  • FIG. 1 shows a heat exchanger 1 having a generally parallelepiped shape and comprising a bundle formed from a plurality of tubes 2 inside which a first heat transfer fluid can flow.
  • the tubes 2 have an oval or oblong cross section, defined by a major axis and a minor axis, and are arranged parallel to each other so as to form a row of tubes 2 .
  • spacers 6 are arranged, acting as interference devices and increasing the surface area for the exchange of heat with a second heat transfer fluid passing between the tubes 2 .
  • the tubes 2 and the spacers 6 are generally made from metal.
  • the tubes 2 and the spacers 6 forming the bundle can be attached together by brazing.
  • the spacers 6 are then referred to as inserts and are, for example, corrugated or crenellated strips positioned between the tubes 2 and attached to said tubes 2 by brazing. This is then referred to as a brazed bundle.
  • the tubes 2 and the spacers 6 forming the bundle can be attached together by mechanical attachment.
  • the spacers 6 are then referred to as fins and are, for example, metal plates comprising orifices through which the tubes 2 pass.
  • the tubes 2 are attached in these orifices by expanding their diameter. This is then referred to as a mechanical bundle.
  • the heat exchanger 1 also comprises two headers 3 or water tanks, one header 3 being arranged at each end of the tubes 2 .
  • These headers 3 each comprise a header plate 4 and a cover 8 that covers the header plate 4 and closes the header 3 in such a way as to form a chamber 30 (shown in FIG. 2 ) in which the first heat transfer fluid can circulate.
  • These headers 3 are used to collect and/or distribute the first heat transfer fluid in order for it to circulate in the tubes 2 .
  • the header plate 4 sealingly connects the header 3 and the bundle of tubes 2 .
  • the header plate 4 can have a generally rectangular shape with two long sides and two short sides.
  • the header plate 4 also comprises a plurality of orifices shaped to match the shape of the cross section of the tubes 2 and capable of receiving the ends of the tubes 2 . The orifices are therefore arranged in a row parallel to the long side of the header plate 4 .
  • the tubes 2 can be sealingly attached to the header plate 4 by brazing, in which case the heat exchanger in question is a brazed heat exchanger.
  • the tubes 2 , the spacers 6 and the header plates 4 can be made from a metal material, in particular aluminum or aluminum alloy, in order to provide good thermal conductivity and allow brazing.
  • the cover 8 can be made from plastic material.
  • the tubes 2 can be attached to the header plate 4 mechanically with the use of a gasket, in which case the heat exchanger in question is a mechanical heat exchanger.
  • the entire header 3 i.e. the header plate 4 and the cover 8 , can be made from plastic material.
  • the header plate 4 comprises a peripheral groove 42 around its entire periphery.
  • the cover 8 comprises lateral walls 81 that are inserted into the peripheral groove 42 and compress a gasket 44 inserted into the peripheral groove 42 in order to provide sealing.
  • the cover 8 can, in particular, be held against the header plate 4 by crimping lugs 43 arranged on the outer rim 41 of the peripheral groove 42 and folded over a shoulder 80 of the cover 8 arranged at the ends of the lateral walls 81 of same.
  • the outer rim 41 of the peripheral groove 42 refers to the rim that is on the outer side of the header 3 , i.e. furthest away from the orifices of the header plate 4 .
  • the lateral walls 81 of the cover 8 comprise projecting retaining elements 82 that come to bear on the header plate 4 .
  • These retaining elements 82 form stops and prevent the cover 8 and, more specifically, the ends of the lateral walls 81 of same, from being pressed beyond a certain limit into the peripheral groove 42 .
  • These retaining elements 82 are arranged on the lateral walls 81 of the cover 8 at a certain distance from the ends of these lateral walls 81 such that the gasket 44 is compressed sufficiently to provide sealing while ensuring that it is not compressed excessively, which could damage it.
  • the header plate 4 has a generally rectangular shape with two long sides and two short sides, the retaining elements 82 come to bear simultaneously on its two long sides and/or its two short sides in order to keep the cover 8 pressed on.
  • these retaining elements 82 are integral with the cover 8 and can thus be produced at the same time as the cover 8 , for example by molding if the cover 8 is made from plastic material.
  • the retaining elements 82 are formed on the outer face of the lateral walls 81 .
  • the retaining elements 82 can therefore be a shoulder of the lateral wall 81 that comes to bear on the outer rim 41 of the peripheral groove 42 .
  • the outer face refers to the face of the cover 8 that is on the outer side of the header 3 , i.e. furthest away from the chamber 30 .
  • the retaining elements 82 When the cover 8 is attached by crimping and the header plate 4 comprises crimping lugs 43 on the outer rim 41 of the peripheral groove 42 , the retaining elements 82 then come to bear between the crimping lugs 43 in order not to hinder the crimping. As shown in FIG. 3 , the retaining elements 82 can therefore bear on the outer rim 41 of the peripheral groove 42 at a cutout 45 provided between two crimping lugs 43 before they are folded onto the shoulder 80 of the cover 8 .
  • the retaining elements 82 can also be a beveled part of the lateral wall 81 that comes to bear on the inner rim of the peripheral groove 42 and that immobilizes the end of the lateral wall 81 against the outer rim of the peripheral groove 42 .
  • the retaining elements 82 are on the inner face of the lateral walls 81 means the retaining elements 82 do not hinder the attachment of the cover 8 , in particular the crimping, and avoids problems of positioning the cover 8 when assembling the header 3 .
  • FIG. 5 shows a second variant of the second embodiment in which, on a given side of the header plate 4 , the cover 3 comprises at least two local retaining means 82 distributed along the length of said side of the header plate 4 .
  • the retaining elements 82 can bear both opposite the orifices of the header plate 4 and the spaces between two orifices if there is a sufficient distance between the edge of these orifices and the inner rim of the peripheral groove 42 , as shown in FIG. 5 .
  • the local retaining elements 82 are arranged so as to bear on the header plate 4 opposite the spaces between the orifices of said header plate 4 and are inserted partially into these spaces.
  • a retaining element 82 can be positioned opposite each tube orifice.

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)
US16/480,814 2017-01-31 2018-01-31 Heat exchanger header Abandoned US20190390917A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1750795A FR3062473B1 (fr) 2017-01-31 2017-01-31 Collecteur pour echangeur de chaleur.
FR1750795 2017-01-31
PCT/FR2018/050225 WO2018142067A1 (fr) 2017-01-31 2018-01-31 Collecteur pour échangeur de chaleur

Publications (1)

Publication Number Publication Date
US20190390917A1 true US20190390917A1 (en) 2019-12-26

Family

ID=58501672

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/480,814 Abandoned US20190390917A1 (en) 2017-01-31 2018-01-31 Heat exchanger header

Country Status (5)

Country Link
US (1) US20190390917A1 (fr)
EP (1) EP3577408B1 (fr)
CN (1) CN110325811B (fr)
FR (1) FR3062473B1 (fr)
WO (1) WO2018142067A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112797836A (zh) * 2020-12-29 2021-05-14 浙江银轮机械股份有限公司 室体、室体组件及换热器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2031669A5 (fr) * 1969-02-03 1970-11-20 Chausson Usines Sa
JPH09126681A (ja) * 1995-10-27 1997-05-16 Toyo Radiator Co Ltd 熱交換器のタンク構造
JPH10281686A (ja) * 1997-03-31 1998-10-23 Toyo Radiator Co Ltd 熱交換器の樹脂製タンク及びその製造方法
JP2000220989A (ja) * 1999-01-28 2000-08-08 Sanden Corp 熱交換器
KR20030072146A (ko) * 2002-03-05 2003-09-13 한국델파이주식회사 차량용 방열기
FR2867553B1 (fr) * 2004-03-10 2009-08-28 Valeo Thermique Moteur Sa Boite collectrice d'echangeur de chaleur avec joint d'etancheite
FR2984475B1 (fr) * 2011-12-19 2018-04-27 Valeo Systemes Thermiques Boite collectrice d'echangeur de chaleur, notamment pour vehicule automobile, couvercle de ladite boite et echangeur de chaleur comprenant une telle boite
DE102012004926A1 (de) * 2012-03-10 2013-09-12 Volkswagen Aktiengesellschaft Wärmetauscher mit einem Rohrboden sowie ein hierfür bestimmter Rohrboden
WO2014116660A1 (fr) * 2013-01-24 2014-07-31 Alcoil Usa Llc Échangeur thermique
DE102014204272A1 (de) * 2013-04-25 2014-10-30 MAHLE Behr GmbH & Co. KG Wärmeübertrager
JP6337442B2 (ja) * 2013-10-30 2018-06-06 株式会社デンソー 熱交換器
JP2017015351A (ja) * 2015-07-03 2017-01-19 カルソニックカンセイ株式会社 熱交換器のシール構造

Also Published As

Publication number Publication date
FR3062473A1 (fr) 2018-08-03
CN110325811B (zh) 2021-11-02
EP3577408B1 (fr) 2023-04-19
EP3577408A1 (fr) 2019-12-11
WO2018142067A1 (fr) 2018-08-09
CN110325811A (zh) 2019-10-11
FR3062473B1 (fr) 2019-04-19

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