EP0903555B1 - Ailette pour échangeur de chaleur et méthode pour réaliser des passages dans une telle ailette - Google Patents

Ailette pour échangeur de chaleur et méthode pour réaliser des passages dans une telle ailette Download PDF

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Publication number
EP0903555B1
EP0903555B1 EP98115572A EP98115572A EP0903555B1 EP 0903555 B1 EP0903555 B1 EP 0903555B1 EP 98115572 A EP98115572 A EP 98115572A EP 98115572 A EP98115572 A EP 98115572A EP 0903555 B1 EP0903555 B1 EP 0903555B1
Authority
EP
European Patent Office
Prior art keywords
collar
fin
supporting rim
rib
fins
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
EP98115572A
Other languages
German (de)
English (en)
Other versions
EP0903555A3 (fr
EP0903555A2 (fr
Inventor
Werner Helms
Roland Hemminger
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
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP0903555A2 publication Critical patent/EP0903555A2/fr
Publication of EP0903555A3 publication Critical patent/EP0903555A3/fr
Application granted granted Critical
Publication of EP0903555B1 publication Critical patent/EP0903555B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings
    • 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
    • F28F2275/125—Fastening; Joining by methods involving deformation of the elements by bringing elements together and expanding

Definitions

  • the invention relates to a rib for a heat exchanger according to claim 1 as well as one Method for the production of ribbed passages in such ribs according to claim 3.
  • Such a rib is known from DE 34 23 746 A1.
  • the Rib is provided with several passages, each one Having collared parallel to the passage axis collar. Each collar has in the upper area on opposite Pages each a right angles outward projecting, the Draft partially circumferential and thus flanking support edge on.
  • the support edges serve as a support surface for positioning the corresponding adjacent rib.
  • Such a method is known from CH 428 323.
  • To Making the rib are in a flat ribbed sheet for each passage cuts introduced.
  • the cut edges to a Collar set up, taking on opposite sides respectively a small, triangular flap parallel to the rib plane is turned off to the outside.
  • Another rib and another method are from the DE 44 04 837 A1 known.
  • a uniform rib division for the ribs of a rib / tube block of a heat exchanger to achieve are the tubes of the rib / tube block receiving Passage of the ribs with spacers in the form of on the circumference of the passages distributed pronounced noses educated.
  • the object of the invention is a rib of the aforementioned To create a kind of good, with ease of manufacture and robust spacer functions to achieve a uniform rib division as the prior art allows.
  • the object of the invention is also a method to create the rib passages to provide in the ribs
  • each passage shows preferably two on opposite longitudinal sides of the By pulling arranged support edges, which are correspondingly opposite are turned off to the outside. The through the support edges formed flat bearing surface runs parallel to Ribs level.
  • the at least one support edge with at least one coplanar protruding outward, ear-like Provided tab increases the flat bearing surface for each adjacent rib, so that a further improved blocking of the ribs / tube block is achievable.
  • the separating cut to his opposite ends to form ear-like Curved tabs.
  • the curved course of the separating cuts Ensures the formation of ear-like tabs, that at the subsequent forming stages no tearing of the ribbed plate at the level of the separating cut.
  • an improved manufacturability of Rippen trimrat is achieved.
  • Ribs 1, 1a as shown in Figs. 1 and 10 fragmentary are part of a rib / tube block for a Heat exchanger, especially for use in one Motor vehicle, wherein a plurality of parallel to each other aligned ribs 1, 1a each with a plurality of provided in parallel juxtaposed passages 3, 3a are a variety of parallel in a row next to each other take up running pipes.
  • the pipes are shown at Embodiment designed as flat oval tubes, whereby the passages 3, 3a corresponding to identical are designed.
  • the composite of ribs 1, 1a and pipes Ribs / tube block is mechanical in a conventional manner joined, wherein the passages 3, 3a of the superimposed Ribs 1, 1a each tightly enclose a tube.
  • the passages 1, 1a of the ribs 3, 3a protrude respectively rectified from the associated rib and form for the overlying rib 1, 1a spacers, so that a achieved even rib pitch of the ribs / tube block becomes.
  • the basic structure of a rib / tube block, such as he has been previously described, including the mechanical Fuegung of the ribs / tube block is detailed in the DE 44 04 837 A1 and disclosed by drawings, so that reference is made to this document for a more detailed explanation becomes.
  • the rib 1 has, according to FIGS. 1, 4b and 5b, a flat ribbed plate 2, whose longitudinal edges each with one Rim groove 5 are provided. Along the flat ribbed plate 2 are aligned at regular intervals parallel to each other Passages 3 provided, the passage opening to the Outer contour of flat oval tubes is adapted. Between adjacent passages 3 are known gill fields 4, for further explanation also to the DE 44 04 837 A1 is referenced.
  • the passages 3 are identical designed to each other.
  • Each passage 3 has a circumferential, perpendicular to the rib plane defining Rippenblech 2 parked on one side collar 9, on in the area of the opposite longitudinal sides of the collar 9 connect two support edges 6 that are parked at right angles to the outside.
  • the surface of the support edges 6 runs parallel to the rib plane formed by the ribbed sheet 2. in the Transition region between the collar 9 and the support edges. 6 are on both sides of the collar 9 three in even Interspersed noses 7 stamped.
  • the Noses 7 are analogous to those described in DE 44 04 837 A1 Nasen so pyramideneckförmig designed that they in the Level of the support edges 6 a triangular cross-section form.
  • the noses 7 are on the opposite longitudinal sides each passage 3 mirror-symmetrical to a central longitudinal plane each passage 3 arranged so that each longitudinal side the passage 3 and thus each support edge 6 respectively three lugs 7 are assigned.
  • the noses 7 have next to one Spacer function, which in itself from DE 44 04 837 A1 is already known, for the two support edges 6 a stiffening function on, since they for the support edges 6 a forming web-like support function.
  • the rib 1a of Fig. 10 substantially corresponds to the rib 1, as previously described. Same parts of the Rib 1a are therefore denoted by the same reference numerals, only with the addition of the letter a.
  • the only Difference in the rib 1a to the rib 1 of FIG. 1 it is that the passages 3a of the rib 1a on diagonally opposite End portions of the opposite support edges 6a each have an ear-like tab 10 which is coplanar protrudes to the support edge 6a to the outside.
  • the ear-like flap 10 has manufacturing causes, as described below will be.
  • a separating cut 8 (FIGS. 2 a and 3 a) is introduced in the ribbed plate 2 at the level of the respective tube spacing and thus the subsequent positioning of the passages 3 transversely to the longitudinal axis of the ribbed plate 2, which is achieved by a suitable cutting tool is achieved with simultaneous support of the ribbed plate 2.
  • the supporting edges 6 and the lugs 7 are created.
  • a perpendicular to the ribbed plate effective punch S 1 is provided as a corresponding forming tool, which cooperates with a die, not shown.
  • the die S 1 has a blade-like shape with a cross section which corresponds to the profile of the support edges 6 in FIG. 2 b.
  • the embossing punch S 1 also has in each case laterally such embossing edges that the lugs 7 are embossed by the forming step together with the bending of the supporting edges 6.
  • the supporting edges 6 protrude upward at right angles to the rib plane formed by the ribbed sheet 2.
  • the reason of each triangular nose in cross-section 7 extends according to FIG. 3b at an acute angle to an underside of the ribbed plate 2 to the respective support edge 6 inwardly and upwardly.
  • the cut edges formed by the separating cut 8 are thus exposed to the formation of the support edges 6 upwards and widened. The widening must be so gentle that no tearing of the separating cut 8 occurs at the opposite, end-side edge regions.
  • a further widening of the passage opening takes place, whereby a circumferential collar 9, which in this process step is tilted obliquely upward and thus tapers conically upwards, is created by a further embossing punch S 2 which is enlarged in width relative to the embossing punch S 1 ,
  • the embossing punch S 2 is provided with a correspondingly elliptical and tapered embossing contour.
  • the collar 9 tapers towards the free end of the passage opening and the two support edges 6 protrude at right angles to the collar obliquely upwards and outwards.
  • the final contour of the passage 3 is achieved by means of a further widened in cross-section punch S 3 , wherein the collar 9 is pulled through such that its peripheral wall is perpendicular to the rib plane turned up.
  • This documented with reference to FIGS. 4b and 5b process step includes the completed passage, wherein the support edges 6 each project at right angles to the collar 9 to the outside.
  • the method for producing the passages 3a from the ribbed sheet 2a of the rib 1a according to FIGS. 6 to 10 corresponds to FIG essentially the production method described above, so that only following the differences to the already described production process is received.
  • the further completion of the ribs 1, 1a achieved by the gill panels 4, 4a and the edge grooves 5, 5a are impressed accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (7)

  1. Ailette (1, 1A) pour un échangeur de chaleur, présentant un bloc d'ailettes/tubes composé de tubes et d'ailettes s'étendant transversalement par rapport à ceux-ci, avec plusieurs passages (3, 3a) recevant les tubes lorsque le bloc d'ailettes/tubes est à l'état assemblé, chaque passage (3, 3a) présentant des supports d'espacement pour un positionnement régulier, correspondant à la division des ailettes, par rapport à chaque fois l'ailette voisine, et chaque passage (3, 3a) présentant une collerette (9) , qui est munie d'au moins un bord d'appui (6, 6a) coudé vers l'extérieur perpendiculairement à l'axe du passage et faisant au moins en partie le pourtour, bord d'appui formant une face de pose plane pour l'ailette (1, 1A) voisine, caractérisée en ce que, dans la zone de transition entre la collerette et le bord d'appui, sont façonnés tridimensionnellement des ergots (7, 7a) présentant une forme pyramidale, de manière qu'ils forment une section transversale triangulaire dans le plan du bord d'appui.
  2. Ailette selon la revendication 1, caractérisée en ce que le au moins un bord d'appui (6a) est muni d'au moins une patte (10) du genre d'une oreille, en porte-à-faux vers l'extérieur de façon coplanaire.
  3. Procédé de fabrication de passages pour ailettes, ménagé dans des ailettes d'échangeur de chaleur selon le préambule de la revendication 1 ou selon la revendication 1, où, à partir d'une tôle de formation d'ailette, plane, par un reformage, on façonne chaque fois une collerette, formant le passage (3, 3a), en créant au moins un bord d'appui (6, 6a) coudé vers l'extérieur à angle droit par rapport à l'axe du passage, où, d'abord, dans la tôle de formation de nervure (2, 2a) plane, on ménage au moins une découpe de séparation (8, 8a), caractérisé en ce que, ensuite, les bords de coupe formés par la découpe de séparation sont munis d'ergots (7, 7a) et reformés pour donner la collerette (9, 9a), sachant que les ergots sont façonnés tridimensionnellement, dans la zone de transition entre la collerette et le bord d'appui, ces ergots présentant une forme pyramidale, de manière qu'ils forment une section transversale à forme triangulaire dans le plan du bord d'appui.
  4. Procédé selon la revendication 3, caractérisé en ce que la découpe de séparation (8, 8a) est incurvée à ses extrémités opposées, en formant des pattes (10) du genre d'oreilles.
  5. Procédé selon l'une des revendications 3 ou 4, caractérisé en ce que, simultanément au façonnage tridimensionnel des ergots (7, 7a), est effectué un élargissement des bords de coupe, en formant le au moins un bord d'appui (6, 6a), et en ce que, par un reformage supplémentaire, la collerette (9, 9a) est formée derrière le bord d'appui (6, 6a) - en observant en direction de la déformation -, le bord d'appui (6, 6a) étant orienté à angle droit par rapport à la collerette (9, 9a).
  6. Procédé selon la revendication 5, caractérisé en ce que la fabrication de la collerette (9, 9a) se fait en deux étapes opératoires successives, sachant que, lors de la première étape, on effectue un placement oblique de la collerette (9, 9a) par rapport à la tôle de formation d'ailette (2, 2a) et que, lors de la deuxième étape, on effectue le repli à la position finale, orientée à angle droit par rapport à la tôle de formation d'ailette (2, 2a).
  7. Echangeur de chaleur, présentant un bloc d'ailettes/tubes formé de tubes et d'ailettes s'étendant transversalement par rapport à ceux-ci, muni des ailettes selon la revendication 1 ou la revendication 2.
EP98115572A 1997-09-23 1998-08-19 Ailette pour échangeur de chaleur et méthode pour réaliser des passages dans une telle ailette Expired - Lifetime EP0903555B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19741856A DE19741856A1 (de) 1997-09-23 1997-09-23 Rippe für einen Wärmeübertrager und Verfahren zur Herstellung von Rippendurchzügen in derartigen Rippen
DE19741856 1997-09-23

Publications (3)

Publication Number Publication Date
EP0903555A2 EP0903555A2 (fr) 1999-03-24
EP0903555A3 EP0903555A3 (fr) 1999-07-28
EP0903555B1 true EP0903555B1 (fr) 2003-04-23

Family

ID=7843276

Family Applications (1)

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EP98115572A Expired - Lifetime EP0903555B1 (fr) 1997-09-23 1998-08-19 Ailette pour échangeur de chaleur et méthode pour réaliser des passages dans une telle ailette

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EP (1) EP0903555B1 (fr)
DE (2) DE19741856A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103176B4 (de) * 2001-01-22 2010-06-02 Behr Gmbh & Co. Kg Verfahren zum Einbringen von Flachrohreinsteckschlitzen in ein Sammelrohr
LU90728B1 (en) * 2001-02-12 2002-08-13 Delphi Tech Inc Punching tool for forming tube slots in a manifold of a heat exchanger
KR100565733B1 (ko) 2001-06-06 2006-03-28 가부시키가이샤 덴소 열교환기와 그 제조 방법
FR2827801B1 (fr) * 2001-07-24 2003-10-31 Valeo Thermique Moteur Sa Procede de fabrication d'ailettes de refroidissement
DE20312313U1 (de) * 2003-08-09 2004-12-16 Eichenauer Heizelemente Gmbh & Co. Kg Vorrichtung zum Erwärmen von Gasströmen
FR2937719B1 (fr) * 2008-10-29 2013-12-27 Valeo Systemes Thermiques Ailette pour echangeur de chaleur et echangeur de chaleur comportant une telle ailette
FR2958027B1 (fr) * 2010-03-25 2012-03-23 Valeo Systemes Thermiques Ailette pour echangeur de chaleur et echangeur de chaleur equipe de telles ailettes.
CN101963472B (zh) * 2010-05-19 2012-07-04 张家港市恒强冷却设备有限公司 套片式换热器的散热片
DE102012002234A1 (de) * 2012-02-04 2013-08-08 Volkswagen Aktiengesellschaft Wärmetauscher mit mehreren Lamellen und Verfahren zur Herstellung einer Lamelle für einen Wärmetauscher
EP3330657B1 (fr) 2016-12-01 2020-10-28 Modine Manufacturing Company Lamelle d'évacuation de l'air d'un échangeur de chaleur et son procédé de fabrication
JP6656279B2 (ja) * 2018-02-15 2020-03-04 三菱電機株式会社 熱交換器

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FR1539121A (fr) * 1967-08-01 1968-09-13 Chausson Usines Sa Ailette à collet bas et outillage pour sa fabrication
FR2088106B1 (fr) * 1970-05-19 1974-09-06 Chausson Usines Sa
DD211225A3 (de) * 1982-05-17 1984-07-04 Umform & Plastverarb Fz Boden fuer den tank eines rohrwaermetauschers und werkzeug zu dessen herstellung
DE3423746A1 (de) * 1984-06-28 1986-01-09 Thermal-Werke Wärme-Kälte-Klimatechnik GmbH, 6832 Hockenheim Waermetauscherlamelle fuer rohre mit elliptischem oder ovalem querschnitt
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Title
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Also Published As

Publication number Publication date
EP0903555A3 (fr) 1999-07-28
DE19741856A1 (de) 1999-03-25
DE59808029D1 (de) 2003-05-28
EP0903555A2 (fr) 1999-03-24

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