EP1846718B2 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
EP1846718B2
EP1846718B2 EP06706633.2A EP06706633A EP1846718B2 EP 1846718 B2 EP1846718 B2 EP 1846718B2 EP 06706633 A EP06706633 A EP 06706633A EP 1846718 B2 EP1846718 B2 EP 1846718B2
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EP
European Patent Office
Prior art keywords
heat exchanger
tubes
beads
box
lobes
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
EP06706633.2A
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German (de)
English (en)
Other versions
EP1846718A1 (fr
EP1846718B1 (fr
Inventor
Cahit Aksoy
Hubert Pomin
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
Mahle Behr GmbH and Co KG
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Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP1846718A1 publication Critical patent/EP1846718A1/fr
Publication of EP1846718B1 publication Critical patent/EP1846718B1/fr
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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

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1.
  • DE-A1-10360472 shows such a heat exchanger
  • FIG. 36 A section through a conventional heat exchanger is in Fig. 36 shown.
  • a box is closed by a bottom having a plurality of openings formed by passages extending in the direction of the box and projecting into the ends of flat tubes.
  • the floor has a circumferential. Beading, in which projects the end of the box, wherein for sealing between the end of the box and the bottom, a sealing ring is arranged.
  • the bottom is attached to the box, for example by Wellschlitzbördelung.
  • Such a heat exchanger leaves nothing to be desired.
  • a heat exchanger having a plurality of tubes is known, the ends of which are inserted into passages which point around the opening in the tubesheets, to the heat exchanger network, whose cross-section is curved inward, and which are metallically connected in a liquid-tight manner, through the tubes and around the tubes different heat exchanging media flow.
  • the pipe ends reach below the level of the tube bottom surface.
  • the tube ends with the passages form a circumferential contact surface, to which a soldering gap connects between the tube and the passage on both sides.
  • the bottom has a circumferential bead into which the end of the box protrudes, a sealing ring being arranged between the end of the box and the deepest part of the bead.
  • the DE 103 60 472 A1 discloses a heat exchanger having a tube bottom with circumferential bead for receiving a foot of a box to form a header tank.
  • the FR 2 742 531 A1 discloses a heat exchanger with newly formed tube sheet with notches between the openings for receiving the tubes and the edge region for receiving a foot of a box for forming a distribution box.
  • a heat exchanger is formed with a plurality of tubes and at least one closed by an apertured bottom box into which opens at least one end of the tubes, wherein the bottom has a plurality of individual cams and / or beads, wherein the cams and / or beads rise in the longitudinal extension of the tubes on the box.
  • the cams are in the bottom area between the tubes, i. formed in the region of the webs between the tube receiving openings, and at the longitudinal ends of the bottom.
  • the cams can take over the function of the circumferential bead, which is omitted according to the invention, wherein the heat exchanger can build narrower, since the cams which replace the peripheral bead are pressed in between the openings or the tubes.
  • the floor - by the fact that the bead is omitted - shell-shaped and smaller than in conventional heat exchangers formed.
  • the length of the cams is preferably at most 50%, in particular at most 45%, at most 40% and particularly preferably at most 25% of the length of the openings receiving the tubes. Overall, the length of the individual cams is preferably 5 to 25 mm, particularly preferably 10 to 15 mm.
  • the cams may be continuously formed over the entire length of the webs as well as at the edge regions and parallel to the webs extending, wherein the cams are referred to in this embodiment hereinafter as beads. These beads also offer the same advantages over the known circumferential beads as the aforementioned cams.
  • the cams and / or beads rise in the longitudinal extent of the tubes towards the box, i. away from the heat exchanger networks. Due to the omission of the bead, the soil also has an improved fatigue behavior under pressure cycling.
  • the cams and / or beads serve with their pointing to the bottom edge ends here a stop for the box.
  • the cams and / or beads are preferably formed by a forming process, in particular in one operation with the production of the passages and the bending of the sides.
  • its bottom edge-side end is designed such that it absorbs the forces occurring during assembly, which compress the box, so that a collapse of the box avoided and thus the tightness of the connection of box and floor can be ensured.
  • the cams and / or beads preferably have a constant height over their entire length.
  • the edge-side end of the cams and / or beads can also be designed to be higher than the inwardly facing end, which may possibly also run flat.
  • the openings which receive the tubes formed as passages. These preferably extend in the direction of the tubes, i. off the chest.
  • the tubes preferably end flush with the passages or, if appropriate, protrude somewhat beyond that.
  • the passages can also be according to the EP 0 990 868 A2 be educated.
  • beads and passages - the bottom - just formed and the longitudinal and narrow ends of the bottom are adjacent to a flat area at an angle of 80 to 90 ° bent in the direction of the box, providing a sufficient bending radius is.
  • the box has a protruding nose in the direction of the bottom, which is formed at a distance from the circumference of the box.
  • a protruding nose in the direction of the bottom, which is formed at a distance from the circumference of the box.
  • the provision of such a nose is possible in principle even with circumferential bead.
  • a seal is arranged, which may be a sealing ring or a seal molded onto the box.
  • the sealing ring can be clamped in this case both on the box and clamped in the ground, so that the assembly can be simplified. In the case of a molded seal, the assembly process can be omitted.
  • the seal on ear-like holding elements which are suspended or mounted in provided at the corners of the bottom cutouts.
  • the seal is particularly advantageous mountable or suspended in the provided cutouts or can be mounted particularly advantageous in the provided cutouts.
  • the height of the nose corresponds approximately to the height of the cams and / or beads, so that the nose additionally protects the edge of the box from damage.
  • cams or beads limit in cooperation with the nose the maximum deformation by forces that act laterally on the ground, in particular during assembly. If necessary, nose and cams or beading also come into contact with each other.
  • the box has in the vicinity of the bottom on its inner peripheral side inwardly extending ribs or projections.
  • the cams and / or beads can be moved further inwards into the ground.
  • the local material reinforcement of the bottom part of the box is in this case designed so that the pipes are not blocked, so that the flow is not hindered.
  • the ribs or projections are preferably applied to the cams and / or beads in order to absorb the forces occurring in particular during assembly.
  • the openings for the tubes preferably extend to between the ribs or projections, so that the heat exchanger can be made narrower compared to conventional heat exchangers.
  • the height of the ribs or projections in the direction of the box decreases.
  • Fig. 1 shows a heat exchanger 1, in this case a compact intercooler, consisting of two sealed by trays 2 boxes 3 and a plurality of extending between the boxes 3 tubes 4.
  • the tubes 4 are formed as flat tubes and protrude with their ends 5 in as passages with the Here, the passages in the direction of the tubes 4, wherein the tubes 4 present each approximately flush with the corresponding box 3 facing surface of the bottoms 2 end (see FIG. Fig. 2 ).
  • the formed as a sheet-stamped bent parts bottom 2 further has a plurality of elevations in the form of cams 7, which extend in the direction of the box 3, that rise above the ground plane B level.
  • the cams 7 are produced by means of a forming process.
  • two first cams 7a are respectively arranged in the region of the ends of the webs between two openings 6 and three second cams 7b at the narrow end of the bottom 2 (cf. Fig. 4 ).
  • the length of the first nubs 7a, as well as the second nubs 7b is approximately 22% of the length of the openings 6, so the passages and thus the (larger) width of the flat tubes, wherein the first nubs 7a have a length of 15 mm in the present case.
  • the longitudinal and narrow ends of the bottom 2 are in the assembled state not shown bent at a right angle in the direction of the box 3, wherein at the corners 8 of the bottom 2 each cutouts are provided.
  • a plurality of slots 9 are provided, which serve the connection of the bottom 2 and box 3 by means of the known Wellschlitzbördelung, ie individual material parts of the bottom 2 engage behind the corresponding provided with a shoulder 10 end portions of the box 3.
  • the slots 9 are present in each case at the level of the openings 6 (longitudinal side) or the second cam 7b (narrow side).
  • the bottom end of the box 3 is provided with a circumferential nose 11 which is formed on the inner peripheral side and extends toward the bottom 2, so that a shoulder 12 is formed for receiving a sealing ring 13 (see Fig. 2 and 3 ).
  • the sealing ring 13 is clamped on this paragraph 12, wherein the clamping takes place in the context of assembly prior to placing the box 3 on the floor 2.
  • the sealing ring 13 is in the present case a sealing ring with a circular profile, but other profiles, in particular oval or rectangular profiles (flat gasket) are possible.
  • the seal is formed molded directly to the box 3 in paragraph 12, so that incorrect assembly of the sealing ring can be avoided.
  • the box 3 is placed after the positioning or formation of the sealing ring and the seal pressed. Subsequently, according to the present embodiment, the closing means of Wellschlitzbördelung, wherein the integrated cam in the bottom 2 7 serve to support the box 3 against the forces acting through the closing forces, so that a collapse of the box 3 and a leak associated with it is avoided.
  • crenellated ribs 14 are formed on the inner peripheral side of the box 3, which cooperate with the first cam 7a, which are offset further in the longitudinal direction of the webs between the openings 6.
  • the ribs 14 on the box 3 in this case extend to the bottom end of the nose 11.
  • the ribs 14 are formed such that above the first cam 7a reduces its height.
  • FIGS. 16 to 24 a bottom 2 according to the third embodiment is shown.
  • the cams 7a and 7b of the two embodiments described above over substantially the entire width of the bottom 2 extending cams, hereinafter referred to as beads 7 ', with substantially continuous cross-sectional profile (see Fig. 18 ), which in the present case by means of forming, ie according to the cams 7a and 7b, are made.
  • each web in the present case comprises three radii whose centers are arranged within the web, and two radii whose centers are arranged outside the web, i.
  • the transitions are each formed as circular arc sections, however, the curvature of the individual transitions can also change.
  • ground plane B is not formed by a surface as in the first two embodiments, it is determined by the inflection point of the curvature curves of passages and beads 7 ', as in the detail view X of FIG Fig. 18 indicated.
  • the flat tube ends of the arranged in the openings between the webs flat tubes 4 (see Fig. 24t ) in the assembled and soldered state according to the present embodiment slightly protrude beyond the ground plane B - that is, the plane which the ground has without formed beads - but is also flush with the ground plane B or protruding to the end of the crests and possibly even beyond.
  • the attachment of the box 3 takes place in the manner described in the first embodiment.
  • the cams are formed such that the tapered ends of the cams are directly adjacent to each other, substantially in the central longitudinal plane of the floor, i. the two cams are almost formed as a single, continuous cam.
  • a heat exchanger 1 in turn a charge air cooler, two sealed by trays 2 boxes 3 and a plurality of extending between the boxes 3 tubes 4.
  • the tubes 4 are formed as flat tubes and corrugated ribs are arranged between two tubes.
  • the tubes 4 protrude with their ends 5 in as passages with the outer dimensions of the tubes 4 correspondingly formed openings 6 in the bottom 2.
  • the formed as a sheet-stamped bent parts bottom 2 further has a plurality of elevations in the form of cams 7, which extend in the direction of the box 3, that rise above the ground plane B level.
  • the cams 7 are produced by means of a forming process with the aid of punches with a trapezoidal or triangular cross-section.
  • two first cams 7a are each arranged in the region of the ends of the webs between two openings 6.
  • four arranged in a row and present each other appropriately trained second cam 7b at the narrow end of the bottom 2 are provided (see Fig. 28 ).
  • the length of the first cam 7a and the second cam 7b corresponds to each other, but their shape differs, that is, their groove shape.
  • the first cams 7a have an approximately V-shaped configuration of substantially constant height
  • the second cams 7b have a more U-shaped configuration that is rounded toward the bottom center and steeper toward the outside and has a substantially constant height.
  • the longitudinal and narrow ends of the bottom 2 are in the mounted state at a right angle in the direction of the box 3 to bent over, wherein at the corners 8 of the bottom 2 each cutouts are provided.
  • the cutouts serve to receive at a clamped in the bottom 2 sealing ring 13, which has at its four corners ohrenförmige holding elements 13 ', which are connected via a web integral with the sealing ring 13.
  • the sealing ring 13 is located on a flat surface in the ground plane B, where he defined by the holding elements 13 'held in the cutouts is stretched rectangular, so that a good seal between the box and floor can be guaranteed.
  • the sealing ring 13 in the present case has a circular cross section, but in principle also another cross section may be provided, for example a rectangular cross section.
  • a plurality of slots 9 are provided, which serve to connect the floor 2 and box 3 by means of the known and Wellschlitzbördelung.
  • the length of the first nubs 7a, as well as the second nubs 7b is about 20% of the length of the openings 6, so the passages and thus the (larger) width of the flat tubes, wherein the first nubs 7a have a length of 10 mm in the present case.
  • cams 7 are possible, for example, alternately provided cams 7 according to the first embodiment and cams 7 'according to the third embodiment of adjacent webs.
  • only continuous cams 7 'and on the outer webs cams 7 may be provided on the central webs.
  • a transition from continuous cams 7 'to lateral, by a land portion which is substantially undeformed, separate cams 7 to the outside is possible, i. in the middle of the embodiment according to the third embodiment, then according to the fourth embodiment and outwardly according to the first embodiment, wherein the longitudinal extent of the cam is reduced to the outside.
  • the separately formed cams 7 do not differ from the continuous cams 7 ', so that no special adaptation of the cask to differently shaped web areas is required.

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  • 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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (13)

  1. Echangeur de chaleur comportant une pluralité de tubes (4) et au moins une boîte (3) fermée par un fond (2) doté d'ouvertures (6), boîte dans laquelle débouche au moins une extrémité (5) des tubes (4), caractérisé en ce que le fond (2) présente des bossages (7 ; 7a, 7b ; 7') et / ou des moulures, et les bossages (7 ; 7a, 7b ; 7') et / ou les moulures sont en saillie sur la boîte (3), dans le sens longitudinal des tubes (4), où les bossages (7 ; 7a ; 7') et / ou les moulures sont configurés entre les tubes (4), dans les zones formant le fond, et où le fond (2), indépendamment des bossages (7 ; 7a, 7b ; 7') et / ou des moulures (7') et des passages, est configuré de façon plane, et les extrémités du fond (2), au niveau de ses grands et de ses petits côtés, sont recourbées en direction de la boîte (3), suivant un angle de 80 à 90°, où la boîte (3) présente un ergot en saillie en direction du fond (2), ergot qui est configuré en étant à distance de la circonférence de la boîte (3), et un joint d'étanchéité est disposé côté circonférence de l'ergot.
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les bossages (7, 7b) et / ou les moulures (7') sont configurés au niveau des extrémités des grands côtés du fond (2).
  3. Echangeur de chaleur selon l'une ou l'autre des revendications précédentes, caractérisé en ce que les bossages (7 ; 7a, 7b ; 7') et / ou les moulures sont réalisés par un processus de formage.
  4. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures (6), qui logent les tubes (4), sont configurées comme des passages qui s'étendent en direction des tubes (4).
  5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que les tubes (4) se terminent à fleur des passages ou bien dépassent un peu au-dessus de ces passages.
  6. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que le joint d'étanchéité est fixé ou moulé par injection.
  7. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que le joint d'étanchéité présente des éléments de fixation (13'), en forme d'oeillets, qui peuvent être accrochés dans des découpes prévues au niveau des parties angulaires (8) du fond (2).
  8. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que la hauteur de l'ergot correspond à peu près à la hauteur des bossages (7, 7a) et / ou des moulures (7).
  9. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ergot est en appui sur les bossages (7a) ou sur les moulures (7').
  10. Echangeur de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que la boîte (3) présente sur son côté circonférentiel intérieur, à proximité du fond (2), des ailettes (14) ou parties saillantes s'étendant vers l'intérieur.
  11. Echangeur de chaleur selon la revendication 10, caractérisé en ce que les ailettes (14) ou parties saillantes sont en appui sur les bossages (7, 7a) et / ou sur les moulures (7').
  12. Echangeur de chaleur selon la revendication 10 ou 11, caractérisé en ce que la hauteur des ailettes (14) ou parties saillantes diminue vers l'intérieur, en allant en direction de la boîte (3).
  13. Echangeur de chaleur selon l'une des revendications 10 ou 11, caractérisé en ce que les ouvertures (6) pour les tubes (4) s'étendent vers l'intérieur, entre les ailettes (14) ou parties saillantes.
EP06706633.2A 2005-02-03 2006-02-03 Echangeur thermique Active EP1846718B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005005180 2005-02-03
PCT/EP2006/000971 WO2006082084A1 (fr) 2005-02-03 2006-02-03 Echangeur thermique

Publications (3)

Publication Number Publication Date
EP1846718A1 EP1846718A1 (fr) 2007-10-24
EP1846718B1 EP1846718B1 (fr) 2012-06-13
EP1846718B2 true EP1846718B2 (fr) 2016-02-10

Family

ID=36581720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706633.2A Active EP1846718B2 (fr) 2005-02-03 2006-02-03 Echangeur thermique

Country Status (5)

Country Link
US (1) US20080135220A1 (fr)
EP (1) EP1846718B2 (fr)
JP (1) JP5264181B2 (fr)
CN (1) CN101111736B (fr)
WO (1) WO2006082084A1 (fr)

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WO2017026210A1 (fr) 2015-08-07 2017-02-16 株式会社デンソー Échangeur de chaleur
JP6796074B2 (ja) * 2015-10-22 2020-12-02 株式会社ティラド 熱交換器およびその組立て方法
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PL3388773T3 (pl) * 2017-04-14 2021-02-08 Valeo Autosystemy Sp. Z.O.O. Wymiennik ciepła dla pojazdów silnikowych
WO2018230383A1 (fr) * 2017-06-13 2018-12-20 カルソニックカンセイ株式会社 Structure de montage de réservoir et procédé de montage de réservoir
JP6841196B2 (ja) * 2017-09-27 2021-03-10 株式会社デンソー 熱交換器およびその製造方法
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Also Published As

Publication number Publication date
CN101111736B (zh) 2010-05-19
EP1846718A1 (fr) 2007-10-24
EP1846718B1 (fr) 2012-06-13
CN101111736A (zh) 2008-01-23
US20080135220A1 (en) 2008-06-12
JP5264181B2 (ja) 2013-08-14
WO2006082084A1 (fr) 2006-08-10
JP2008528930A (ja) 2008-07-31

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