EP3080542B1 - Sammler und entsprechender wärmetauscher - Google Patents

Sammler und entsprechender wärmetauscher Download PDF

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Publication number
EP3080542B1
EP3080542B1 EP14783865.0A EP14783865A EP3080542B1 EP 3080542 B1 EP3080542 B1 EP 3080542B1 EP 14783865 A EP14783865 A EP 14783865A EP 3080542 B1 EP3080542 B1 EP 3080542B1
Authority
EP
European Patent Office
Prior art keywords
header box
collars
collector
heat exchanger
manifold
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
EP14783865.0A
Other languages
English (en)
French (fr)
Other versions
EP3080542A1 (de
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
Publication of EP3080542A1 publication Critical patent/EP3080542A1/de
Application granted granted Critical
Publication of EP3080542B1 publication Critical patent/EP3080542B1/de
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
    • 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
    • F28F9/04—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
    • 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
    • F28F9/0243—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
    • 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 manifold for a heat exchanger, in particular for a motor vehicle.
  • a collector box having the characteristics of the preamble of claim 1 is known from WO2006 / 082084 .
  • the invention also relates to a corresponding heat exchanger.
  • a heat exchanger is for example used in a motor vehicle, in particular as a cooling system radiator, or in high pressure applications, for example as a condenser of an air conditioning system.
  • such a heat exchanger comprises a bundle of tubes and at least one header box.
  • This header box is configured to receive the ends of the tubes of the heat exchanger.
  • the collector box generally comprises a collector, for example in the form of a collector plate.
  • the collector box generally also includes a cover which is fixed on the collector plate to close the collector box.
  • the collector plate makes it possible to distribute the fluid to the heat exchange tubes or to collect the fluid coming from these heat exchange tubes.
  • the collector plate is generally made of aluminum and can be produced for example by stamping.
  • the collector plate has a generally flat bottom.
  • the manifold has an at least partially rounded bottom to withstand the pressure.
  • the collector plate with a flat bottom or a rounded bottom is usually provided with collars surrounding the collars. openings crossed by the ends of the tubes of the heat exchanger bundle.
  • the openings such as slits are made in the collector plate to introduce the tubes, for example with removal of material or, on the contrary, without removal of material. In the latter case, the material is pushed by the tool towards the interior of the volume defined by the collector box, thus creating a collar around the opening for the introduction of the tube.
  • standard collars we are talking about standard collars.
  • the collars allow good contact between the tube and the opening in the collector plate and obtain a good brazing quality in the case of brazed exchangers, for example all aluminum.
  • the tubes are generally inserted into the opening in the same direction as the tooling to make the collars around the openings.
  • the inserted tubes generally extend partly inside the header box to ensure proper brazing and a strong, tight assembly. According to some solutions, the tubes protrude into the volume forming the fluid reservoir by nearly half the volume of the manifold.
  • a collector box with a flat bottom may have so-called inverted collars, that is to say made in the direction opposite to the direction of insertion of a heat exchange tube.
  • the collars then have a flared shape oriented towards the opposite of the volume defined by the manifold.
  • such inverted collars have a low flare, in other words the known inverted collars define a small inlet cone for the insertion of the heat exchange tubes.
  • the inlet cone may therefore not be sufficient to allow simple insertion of the heat exchange tubes, and the solutions known from the prior art may present difficulties in inserting the heat exchange tubes into the manifold.
  • the object of the invention is to provide a collector box making it possible to solve these problems of the prior art.
  • the invention relates to a manifold for an exchanger thermal comprising a manifold 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 collars surrounding the openings, characterized in that the collector further comprises a plurality of corrugations, and in that the collars are produced at the level of the corrugations of the collector and respectively have a substantially flared shape directed on the side opposite to the volume defined by the collector box.
  • the collars are formed at the level of the tops of the corrugations oriented towards the opposite of the volume defined by the manifold.
  • Such an at least partially rounded box is adapted to withstand the pressure in high pressure applications, and the manifold with such inverted collars, that is to say whose direction is opposite to the usual direction of insertion. tubes, makes it possible to receive the ends of the tubes which, previously, protruded inside the volume defined by the manifold.
  • It can be a brazed heat exchanger.
  • the heat exchange tubes have a height of between 0.8mm and 2.5mm, preferably between 1.2mm and 1.8mm.
  • the pitch of the heat exchange tubes is for example between 5mm and 10mm, preferably between 6mm and 8mm.
  • a fluid manifold 1 for a heat exchanger (not shown) in particular in the automotive field.
  • the heat exchanger can be used in particular as a radiator or condenser for a motor vehicle.
  • the invention can be applied for a brazed heat exchanger.
  • the heat exchanger comprises a bundle of tubes 3. Only one end of a tube 3 is visible on the figure 2 .
  • the tubes 3 are for example made of aluminum or of an aluminum alloy. These are for example substantially flattened tubes 3.
  • the manifold 1 is configured to receive at least one end of a tube 3 of the heat exchanger, more precisely to receive the ends of a multiplicity of tubes 3, of the heat exchanger (not shown). Only one end of a tube 3 is visible on the figure 2 .
  • the manifold 1 comprises for this purpose a manifold 5.
  • the manifold 1 further comprises a cover 6 fixed to the manifold 5, so as to close the manifold 1.
  • the collector 5 is for example made of aluminum or an aluminum alloy.
  • the cover 6 for its part can be made of aluminum in an aluminum alloy, or in a variant of plastic.
  • the cover 6 can be fixed to the manifold 5, for example by clipping, by brazing or even by crimping.
  • the openings 7 have for example a substantially elongated shape, such as slits.
  • the ends of the tubes 3 received in the openings 7 can then be soldered, for example to the manifold 5.
  • the heat exchange tubes 3 have a height of between 0.8mm and 2.5mm, preferably between 1.2mm and 1.8mm.
  • the pitch of the heat exchange tubes 3, that is to say the center distance between two heat exchange tubes 3, is for example between 5mm and 10mm, preferably between 6mm and 8mm.
  • the collector 5 has a wall 8 forming a box bottom.
  • the collector box 1 further comprises side walls 8 'connected to this box bottom 8.
  • the wall 8 forming the bottom of the box also called the bottom wall 8 has a shape which is substantially convex towards the outside of the volume defined by the manifold 1.
  • the bottom wall 8 of the manifold 5 has a shape that is substantially concave with respect to the interior volume defined by the manifold 1, and substantially convex with respect to the bundle of tubes 3 of the heat exchanger, the convexity of which is oriented towards the outside of the volume defined by the manifold 1.
  • the collector box 1 further comprises a predefined number of collars 9 formed on the collector 5 at the level of the openings 7 to receive the ends of tubes 3. More precisely, each opening 7 is surrounded by a collar 9.
  • the collars 9 are here produced without removing material.
  • the manifold 5 further comprises a plurality of deformations 11. These deformations 11 are produced at the level of the substantially domed bottom wall 8 of the manifold 5. The deformations 11 are for example produced so as to form a regular pattern.
  • ripples or waves 11 are ripples or waves 11.
  • the collars 9, better visible on the figures 4a, 4b are formed at the level of the corrugations 11, more precisely at the tops of the corrugations 11 directed towards the opposite of the volume defined by the manifold.
  • the openings 7 are formed by piercing or perforating the collector 5 at the tops of the corrugations 11 directed towards the opposite of the volume defined by the collector box, and the collars 9 are produced by the material around these openings 7.
  • the corrugations 11 are made with a sufficient height h (cf. figure 5 ), for example with a greater height h of the order of 30% of the tube pitch.
  • the collars 9 thus formed are directed towards the opposite of the volume defined by the manifold 1, namely towards the bundle of tubes 3 of the heat exchanger. We are talking about inverted 9 snares.
  • the collars 9 have a sufficient height h 'suitable for 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 collars 9 have a generally flared shape, such as a tulip shape.
  • the collars 9 respectively have a shape substantially conical, for example with an angle ⁇ of the order of 30 ° (cf. figure 5 ).
  • a collar 9 therefore has two flared edges 9a, 9b, corresponding to the two large edges, connected to each other by two small edges 9c, 9d.
  • This flared, or substantially conical, shape facilitates the introduction of the ends of the tubes 3 into the manifold 5, from outside the volume defined by the manifold 1 towards the interior of the volume defined by the manifold 1.
  • the first width 11 is substantially equal to or slightly greater than the width of a tube 3 intended to be inserted into the opening 7.
  • the largest width l 2 defines the opening 7 surrounded by the collar 9 for inserting the end of a tube 3.
  • the second width l 2 is provided sufficiently wide to allow simple insertion, and in particular at the same time. , of the ends of all the tubes 3 of the heat exchanger (not shown) in the openings 7.
  • the second width l 2 is for example of the order of twice the first width l 1 of the collar 9.
  • a corrugation 11 has for example a first thickness e 1
  • the collar 9 has a second thickness e 2 less than the first thickness e 1 of the corrugation 11.
  • the collar 9 can be thinned both at the large flared edges 9a, 9b and at the small connecting edges 9c and 9d.
  • a thinning of the material is carried out at the level of the collar 9 which can go beyond 30%, or even locally beyond 50% of the initial thickness of the material.
  • this collar 9 can be lengthened.
  • a manifold 5 comprising such inverted collars 9 makes it possible to facilitate the introduction of the ends of the multiplicity of heat exchange tubes 3 of the heat exchanger at the same time and in a simple manner without requiring specific tools. in particular to guide each tube 3 in the associated opening 7.
  • the inverted and flared collars 9 offer a sufficient opening for the introduction from the outside of the manifold 1 towards the interior of the volume defined by the manifold 1.
  • these inverted collars 9 allow the insertion of the ends of the tubes 3 without these ends opening out inside the volume defined by the manifold 1 thus promoting the flow of fluid inside the manifold 1.

Landscapes

  • 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)

Claims (13)

  1. Sammelkasten (1) für einen Wärmetauscher, welcher einen Endboden (5) aufweist, der eine wenigstens teilweise abgerundete Form aufweist und umfasst:
    - mehrere Öffnungen (7) für den Durchgang mehrerer Wärmeaustauschrohre (3) des Wärmetauschers, und
    - mehrere Kragen (9), welche die Öffnungen (7) umgeben,
    - der Endboden (5) weist außerdem mehrere Wellungen (11) auf, und dadurch, dass
    - die Kragen (9) an den Wellungen (11) des Endbodens (5) ausgebildet sind und jeweils eine im Wesentlichen aufgeweitete Form aufweisen, die zu der Seite gerichtet ist, die zu dem von dem Sammelkasten (1) definierten Volumen entgegengesetzt ist,
    dadurch gekennzeichnet, dass die Kragen (9) an Scheiteln der Wellungen (11) ausgebildet sind, die entgegengesetzt zu dem von dem Sammelkasten (1) definierten Volumen ausgerichtet sind,
    wobei der Endboden (5) wenigstens eine Wand (8) mit einer Form aufweist, die im Wesentlichen zur Außenseite des von dem Sammelkasten (1) definierten Volumens hin gewölbt ist,
    wobei die Wellungen (11) auf der Wand (8) ausgebildet sind.
  2. Sammelkasten nach Anspruch 1, wobei die Wellungen (11) jeweils eine Höhe (h) aufweisen, die um ungefähr 30 % größer als der Mitte-zu-Mitte-Abstand der Rohre (3) ist.
  3. Sammelkasten nach Anspruch 1 oder 2, wobei die Kragen (9) jeweils eine im Wesentlichen konische Form aufweisen.
  4. Sammelkasten nach dem vorhergehenden Anspruch, wobei ein von einem Kragen (9) gebildeter Kegel einen Winkel (α) von ungefähr 30° aufweist.
  5. Sammelkasten nach einem der vorhergehenden Ansprüche, wobei die Kragen (9) jeweils aufweisen:
    - eine erste Breite (l1) und
    - eine zweite Breite (l2), die größer als die erste Breite (l1) ist, zum Beispiel ungefähr doppelt so groß wie die erste Breite (l1).
  6. Sammelkasten nach dem vorhergehenden Anspruch, wobei die erste Breite (l1) ungefähr gleich der Breite eines Rohres (3) ist, das dazu bestimmt ist, in die Öffnung (7) eingesetzt zu werden.
  7. Sammelkasten nach einem der vorhergehenden Ansprüche, wobei die Kragen (9) jeweils zwei konvexe, im Wesentlichen aufgeweitete Ränder (9a, 9b) aufweisen, deren Konvexität zur Außenseite des von dem Sammelkasten (1) definierten Volumens hin gerichtet ist.
  8. Sammelkasten nach einem der vorhergehenden Ansprüche, wobei die Kragen (9) eine Höhe (h') aufweisen, die ungefähr gleich der Hälfte der Höhe (h) einer Wellung (11) ist.
  9. Sammelkasten nach einem der vorhergehenden Ansprüche, wobei die Kragen (9) im Verhältnis zu den Wellungen (11) auf dem Endboden (5) verdünnt sind.
  10. Sammelkasten nach dem vorhergehenden Anspruch, wobei die Verdünnung des Materials an einem Kragen (9) mindestens größer als 30 % der ursprünglichen Dicke des Materials ist.
  11. Wärmetauscher, insbesondere für ein Kraftfahrzeug, welcher ein Bündel von Wärmeaustauschrohren (3) umfasst, deren Enden an wenigstens einem Sammelkasten (1) befestigt sind, dadurch gekennzeichnet, dass der Sammelkasten (1) einem der vorhergehenden Ansprüche entspricht.
  12. Wärmetauscher nach dem vorhergehenden Anspruch, wobei die Wärmeaustauschrohre (3) eine Höhe zwischen 0,8 mm und 2,5 mm, vorzugsweise zwischen 1,2 mm und 1,8 mm aufweisen.
  13. Wärmetauscher nach einem der Ansprüche 11 oder 12, wobei der Mitte-zu-Mitte-Abstand der Wärmeaustauschrohre (3) zwischen 5 mm und 10 mm, vorzugsweise zwischen 6 mm und 8 mm liegt.
EP14783865.0A 2013-12-13 2014-10-14 Sammler und entsprechender wärmetauscher Active EP3080542B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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 (2)

Publication Number Publication Date
EP3080542A1 EP3080542A1 (de) 2016-10-19
EP3080542B1 true EP3080542B1 (de) 2020-09-02

Family

ID=50289932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14783865.0A Active EP3080542B1 (de) 2013-12-13 2014-10-14 Sammler und entsprechender wärmetauscher

Country Status (7)

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

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Publication number Priority date Publication date Assignee Title
US10030918B2 (en) * 2014-10-09 2018-07-24 Enterex America LLC Radiator tank fastening system
JP6790948B2 (ja) * 2017-03-21 2020-11-25 株式会社デンソー 熱交換器
DE102017218810A1 (de) * 2017-10-20 2019-04-25 Mahle International Gmbh Sammelkasten eines Wärmeübertragers
DE102018220142A1 (de) 2018-11-23 2020-05-28 Mahle International Gmbh Sammelrohr für einen Wärmeübertrager
DE102018220143A1 (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

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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
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Also Published As

Publication number Publication date
EP3080542A1 (de) 2016-10-19
FR3015016B1 (fr) 2019-05-17
CN106461353B (zh) 2022-05-03
CN106461353A (zh) 2017-02-22
KR20160098413A (ko) 2016-08-18
JP7383687B2 (ja) 2023-11-20
JP2022048152A (ja) 2022-03-25
FR3015016A1 (fr) 2015-06-19
US20160377357A1 (en) 2016-12-29
JP2020128865A (ja) 2020-08-27
WO2015086195A1 (fr) 2015-06-18
JP2018189363A (ja) 2018-11-29
JP2017500528A (ja) 2017-01-05

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