EP0401590B1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP0401590B1
EP0401590B1 EP90109706A EP90109706A EP0401590B1 EP 0401590 B1 EP0401590 B1 EP 0401590B1 EP 90109706 A EP90109706 A EP 90109706A EP 90109706 A EP90109706 A EP 90109706A EP 0401590 B1 EP0401590 B1 EP 0401590B1
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EP
European Patent Office
Prior art keywords
heat exchanger
exchanger according
projections
guide
plates
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
EP90109706A
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German (de)
French (fr)
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EP0401590A1 (en
Inventor
Jürgen Ing. grad. Bayer
Kurt Scharpf
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Mahle Behr GmbH and Co KG
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Behr GmbH and Co KG
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Publication of EP0401590A1 publication Critical patent/EP0401590A1/en
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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
    • 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
    • F28D1/05316—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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • 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
    • F28F2275/08—Fastening; Joining by clamping or clipping
    • F28F2275/085—Fastening; Joining by clamping or clipping with snap connection

Definitions

  • the invention relates to a heat exchanger, in particular a radiator for vehicles, which essentially comprises a plurality of parallel tubes and fins which are kept at a distance from one another and run transversely to these tubes, and each floor and water box adjacent to the last fin, with the sides formed by the fin ends Lamella tube blocks for fastening and stiffening, in cross-section U-shaped side parts made of plastic are arranged, on the side of which the lamellae overlapping legs are provided with spacing safety projections which engage in spaces between the lamellae and the ends of the slats rest against the base of the cross-sectionally U-shaped side parts.
  • the fins are flat sheet-metal plates, the ends of which rest against the base of the cross-sectionally U-shaped side parts between securing projections.
  • the flat sheet metal fins are not very stable and there is a risk of accidental deformation, especially during assembly.
  • the present invention is based on the object of improving a heat exchanger of the type mentioned at the outset in such a way that a stable construction is achieved with simple means with simple assembly.
  • the invention provides that the cross-sectionally U-shaped side parts made of two each one of the Leg and part of the base forming L-strips are assembled so that the securing projections arranged at a distance from one another on the legs end at a distance from the adjacent base part and form a receiving groove in such a way that the ends of the slats are angled by approximately 90 ° and that these angled ends are received in their corner area in the receiving grooves of the side parts.
  • Exact assembly is particularly facilitated by the fact that the two L-bars forming a side part can be joined together via guide projections and guide recesses perpendicular to their plane of division and are firmly connected to one another, preferably by gluing, welding or plastic deformation, or positively connected via snap connections.
  • a controlled closing and possibly also loosening of the snap connection is particularly facilitated in that the guide projections protrude through the ends of the guide recesses and have rear snap projections at the ends that snap undercuts or the ends of the guide recesses.
  • the free ends of the securing projections can have sliding bevels, preferably on three of their four side surfaces.
  • slats can be held with their angled ends between two securing projections, the slats then being elastically and / or plastically deformed in the region of their ends between the securing projections, so that the slat division is irregular in the end area.
  • the assembly is thereby facilitated without a significant disadvantage in strength and the division of the securing projections can be relatively large with the corresponding advantages in manufacture.
  • the lamella thickness is usually between 0.08 and 0.1 mm, the lamella division being approximately 1 mm.
  • the angled ends of the lamellae expediently extend at least to the next lamella and at most to the lamella after next, so that particularly good dimensional stability is achieved by mutually supporting the lamella ends.
  • the assembly of the L-strips on the slats can be further facilitated in that the legs of the L-strips carrying the guide projections have further sloping slopes at least in the area between the guide projections.
  • the motor vehicle radiator shown in FIG. 1 essentially comprises a multiplicity of parallel tubes 1 which project through essentially flat fins 2 running transversely thereto and keep them at a distance from each other.
  • the tubes 1 end in floors, not shown, of an upper water tank 3 and a lower water tank 3 '.
  • the ends of the fins 2 are held in cross-sectionally U-shaped side parts 4, 4 ', the side parts 4, 4' having fastening legs 5 with openings 6 for fastening the radiator.
  • FIGS. 3 to 5 different connection options of the L-bars 7, 7 'in the form of snap connections 14, 14', 14, are shown.
  • the L-bar 7 each has a tongue-like guide projection 11, 11 'or 11', which extends through a guide recess 12, 12 'or 12' of the L-bar 7 '.
  • the guide projections 11 have approximately a rectangular cross section, while the cross section of the guide projections 11, 11 '11' receiving guide recesses 12, 12 '. 12 ⁇ is also rectangular.
  • a rear snap projection 13 is provided on the outside at the end of the guide projection 11 which projects through the guide recess 12.
  • the outside is corresponding Wall of the guide recess 12 is at least somewhat elastic, so that the guide projection 11 with its rear snap projection 13 can be pushed through until it snaps in order to close the snap connection 14.
  • the guide projection 11 ' is formed as a split tongue, each tongue part 15, 15' laterally has a rear snap projection 13 'which snaps the guide recess 12' laterally.
  • a rear snap projection 13 ' is provided on the outside on the tongue-shaped guide projection 11', which engages behind a rear snap edge 16 of an opening 17 in a side wall of the guide recess 12 '.
  • the L-bar design is shown on a larger scale.
  • the securing projections 10 are provided on all four sides with sliding bevels 18 which facilitate assembly of the slats 2 indicated in their position in FIG. 7.
  • the angled ends 19 of the slats 2 are received in a receiving groove 20 between the securing projections 10 and the sub-base 8.
  • the length of the angled ends 19 corresponds to the clear distance between the slats 2 (right part of the illustration).
  • the division of the securing projections 10 is usually chosen to be larger than the lamella division, for example by a factor of 3, as is shown in the left part in FIG. 7.
  • the assembly is carried out in a simple manner so that the slats 2 are inserted into the L-bars 7 'below and then the L-bars 7 are placed from above and the snap connections 14 and 14' and 14 °. are closed.
  • a slip bevel 18 'can also be provided on the leg 9, at least in the area between the securing projections 10.

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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)

Description

Die Erfindung betrifft einen Wärmetauscher, insbesondere Kühler für Fahrzeuge, der im wesentlichen eine Vielzahl paralleler Rohre und quer zu diesen Rohren verlaufend im Abstand voneinander gehaltene Lamellen, sowie jeweils der letzten Lamelle benachbart Boden und Wasserkasten umfaßt, wobei an den durch die Lamellenenden gebildeten Seiten des Lamellen-Rohrblocks zur Befestigung und Versteifung dienende, im Querschnitt U-förmige Seitenteile aus Kunststoff angeordnet sind, an deren die Lamellen seitlich übergreifenden Schenkeln im Abstand voneinander Sicherungsvorsprünge vorgesehen sind, die in Zwischenräume zwischen den Lamellen eingreifen und die Enden der Lamellen jeweils an der Basis der im Querschnitt U-förmigen Seitenteile anliegen.The invention relates to a heat exchanger, in particular a radiator for vehicles, which essentially comprises a plurality of parallel tubes and fins which are kept at a distance from one another and run transversely to these tubes, and each floor and water box adjacent to the last fin, with the sides formed by the fin ends Lamella tube blocks for fastening and stiffening, in cross-section U-shaped side parts made of plastic are arranged, on the side of which the lamellae overlapping legs are provided with spacing safety projections which engage in spaces between the lamellae and the ends of the slats rest against the base of the cross-sectionally U-shaped side parts.

Bei einem solchen aus der DE 35 27 054 A1 bekannten Wärmetauscher sind die Lamellen flache Blechplatten, deren Enden stirnseitig an der Basis der im Querschnitt U-förmigen Seitenteile zwischen Sicherungsvorsprüngen anliegen. Die ebenen Blechlamellen sind wenig formstabil und es besteht insbesondere bei der Montage die Gefahr der unbeabsichtigten Verformung.In such a heat exchanger known from DE 35 27 054 A1, the fins are flat sheet-metal plates, the ends of which rest against the base of the cross-sectionally U-shaped side parts between securing projections. The flat sheet metal fins are not very stable and there is a risk of accidental deformation, especially during assembly.

Aus der DE 32 02 901 C2 ist es bekannt, die abgewinkelten Enden der Lamellen in erweichtem Kunststoff der aus zwei L-Leisten bestehenden, im Querschnitt U-förmigen Seitenteile einzubetten. Hierdurch wird ein guter Formschluß erhalten. Der Montageaufwand ist aber erheblich. Durch das erforderliche Erwärmen des Kunststoff besteht die Gefahr des Verziehens der Seitenteile.From DE 32 02 901 C2 it is known to embed the angled ends of the lamellae in softened plastic of the side parts which are U-shaped in cross section and consist of two L strips. This gives a good positive fit. The assembly effort is considerable. Due to the necessary heating of the plastic there is a risk of warping the side parts.

In Vermeidung der geschilderten Nachteile liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Wärmetauscher der eingangs genannten Art so zu verbessern, daß bei einfacher Montage doch ein stabiler Aufbau mit einfachen Mitteln erreicht wird.In avoiding the disadvantages described, the present invention is based on the object of improving a heat exchanger of the type mentioned at the outset in such a way that a stable construction is achieved with simple means with simple assembly.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, daß die im Querschnitt U-förmigen Seitenteile aus zwei jeweils einen der Schenkel und einen Teil der Basis bildenden L-Leisten zusammengesetzt sind, daß die im Abstand voneinander an den Schenkeln angeordneten Sicherungsvorsprünge mit Abstand vor dem angrenzenden Basisteil enden und so eine Aufnahmenut bilden, daß die Enden der Lamellen um etwa 90° abgewinkelt sind und daß diese abgewinkelten Enden in ihrem Eckbereich in den Aufnahmenuten der Seitenteile aufgenommen sind.To achieve this object, the invention provides that the cross-sectionally U-shaped side parts made of two each one of the Leg and part of the base forming L-strips are assembled so that the securing projections arranged at a distance from one another on the legs end at a distance from the adjacent base part and form a receiving groove in such a way that the ends of the slats are angled by approximately 90 ° and that these angled ends are received in their corner area in the receiving grooves of the side parts.

Eine exakte Montage wird besonders dadurch erleichtert, daß die ein Seitenteil bildenden beiden L-Leisten über Führungsvorsprünge und Führungsausnehmungen senkrecht zu ihrer Teilungsebene geführt zusammenfügbar und miteinander vorzugsweise durch Verkleben, Schweißen oder plastische Verformung fest, oder über Schnappverbindungen formschlüssig miteinander verbunden sind.Exact assembly is particularly facilitated by the fact that the two L-bars forming a side part can be joined together via guide projections and guide recesses perpendicular to their plane of division and are firmly connected to one another, preferably by gluing, welding or plastic deformation, or positively connected via snap connections.

Ein kontrolliertes Schließen und ggf. auch Lösen der Schnappverbindung wird dadurch besonders erleichtert, daß die Führungsvorsprünge die Führungsaussparungen mit ihren Enden durchragen und an den Enden Hinterschnappvorsprünge aufweisen, die Hinterschnitte oder die Enden der Führungsausnehmungen hinterschnappen.A controlled closing and possibly also loosening of the snap connection is particularly facilitated in that the guide projections protrude through the ends of the guide recesses and have rear snap projections at the ends that snap undercuts or the ends of the guide recesses.

Zur Erleichterung der Zusammenführung können die freien Enden der Sicherungsvorsprünge Aufgleitschrägen aufweisen, vorzugsweise auf drei ihrer vier Seitenflächen.To facilitate the merging, the free ends of the securing projections can have sliding bevels, preferably on three of their four side surfaces.

Gewichtssparend können zwischen zwei Sicherungsvorsprüngen mehrere, bspw. drei Lamellen mit ihren abgewinkelten Enden gehalten sein, wobei die Lamellen dann im Bereich ihrer Enden zwischen den Sicherungsvorsprüngen elastisch und/oder plastisch verformt werden, so daß im Endbereich die Lamellenteilung unregelmäßig ist. Das Zusammenfügen wird hierdurch ohne wesentlichen Festigkeitsnachteil erleichtert und die Teilung der Sicherungsvorsprünge kann mit den entsprechenden Vorteilen bei der Herstellung relativ groß sein. Die Lamellendicke liegt üblicherweise zwischen 0,08 und 0,1 mm, wobei die Lamellenteilung bei etwa 1 mm liegt.To save weight, several, for example three, slats can be held with their angled ends between two securing projections, the slats then being elastically and / or plastically deformed in the region of their ends between the securing projections, so that the slat division is irregular in the end area. The assembly is thereby facilitated without a significant disadvantage in strength and the division of the securing projections can be relatively large with the corresponding advantages in manufacture. The lamella thickness is usually between 0.08 and 0.1 mm, the lamella division being approximately 1 mm.

Zweckmäßigerweise erstrecken sich die abgewinkelten Enden der Lamellen mindestens bis zur nächsten Lamelle und höchstens bis zur übernächsten Lamelle, so daß durch gegenseitiges Abstützen der Lamellenenden eine besonders gute Formstabilität erreicht wird. Die Montage der L-Leisten auf die Lamellen kann noch dadurch erleichtert werden, daß die die Führungsvorsprünge tragenden Schenkel der L-Leisten mindestens im Bereich zwischen den Führungsvorsprüngen weitere Aufgleitschrägen aufweisen.The angled ends of the lamellae expediently extend at least to the next lamella and at most to the lamella after next, so that particularly good dimensional stability is achieved by mutually supporting the lamella ends. The assembly of the L-strips on the slats can be further facilitated in that the legs of the L-strips carrying the guide projections have further sloping slopes at least in the area between the guide projections.

Weitere Ausbildungen der Erfindung sind den Unteransprüchen zu entnehmen und werden mit ihren Vorteilen anhand der beigefügten Zeichnungen in der nachstehenden Beschreibung näher erläutert. Es zeigt:

  • Figur 1 eine Ansicht eines Kühlers,
  • Figur 2 eine verkürzte Seitenansicht eines aus zwei L-Leisten zusammengesetzten Seitenteils, mit verschiedenen Ausführungen von Schnappverbindungen,
  • Figuren 3 - 5 den Linien III-III, IV-IV, V-V in Fig. 2 entsprechende Schnitte durch die verschiedenen Schnappverbindungen,
  • Figur 6 einen Querschnitt durch eine L-Leiste in größerem Maßstab,
  • Figur 7 eine Teilansichten der in Fig. 6 dargestellten L-Leiste in Richtung des Pfeils VII in Fig. 6, links mit relativ dünnen gebündelten Lamellen und rechts mit relativ dicken Lamellen mit übergroß dargestelltem Lamellenabstand; und
  • Figur 8 eine Teilansicht der in Figur 6 dargestellten L-Leiste in Richtung des Pfeils VIII.
Further embodiments of the invention can be found in the subclaims and their advantages are explained in more detail with reference to the accompanying drawings in the description below. It shows:
  • FIG. 1 shows a view of a cooler,
  • FIG. 2 shows a shortened side view of a side part composed of two L strips, with different designs of snap connections,
  • FIGS. 3 - 5 sections corresponding to lines III-III, IV-IV, VV in FIG. 2 through the different snap connections,
  • FIG. 6 shows a cross section through an L bar on a larger scale,
  • FIG. 7 is a partial view of the L-bar shown in FIG. 6 in the direction of arrow VII in FIG. 6, on the left with relatively thin bundled slats and on the right with relatively thick slats with an oversized slat spacing; and
  • Figure 8 is a partial view of the L-bar shown in Figure 6 in the direction of arrow VIII.

Der in Fig. 1 dargestellte Kraftfahrzeugkühler umfaßt im wesentlichen eine Vielzahl von parallelen Rohren 1, die quer dazu verlaufende im wesentlichen flache Lamellen 2 durchragen und eine diese im Abstand voneinander halten. Die Rohre 1 enden in nicht näher dargestellten Böden eines oberen Wasserkastens 3 und eines unteren Wasserkastens 3′ . Die Enden der Lamellen 2 sind in im Querschnitt U-förmigen Seitenteilen 4, 4′ gehalten, wobei die Seitenteile 4, 4′ Befestigungsschenkel 5 mit Durchbrüchen 6 zur Kühlerbefestigung aufweisen.The motor vehicle radiator shown in FIG. 1 essentially comprises a multiplicity of parallel tubes 1 which project through essentially flat fins 2 running transversely thereto and keep them at a distance from each other. The tubes 1 end in floors, not shown, of an upper water tank 3 and a lower water tank 3 '. The ends of the fins 2 are held in cross-sectionally U-shaped side parts 4, 4 ', the side parts 4, 4' having fastening legs 5 with openings 6 for fastening the radiator.

Die beiden Seitenteile 4, 4′ bestehen jeweils aus zwei L-Leisten 7, 7′, wobei ein Schenkel eine Teilbasis 8 bzw. 8′ der U-förmigen Seitenteile 4 bildet und der andere Schenkel 9, 9′ trägt, parallel zum Basisteil 8 bzw. 8′ und im Abstand hiervon kammartig angeordnete Sicherungsvorsprünge 10.The two side parts 4, 4 'each consist of two L-bars 7, 7', one leg forming a partial base 8 or 8 'of the U-shaped side parts 4 and the other leg 9, 9', parallel to the base part 8 or 8 'and at a distance therefrom arranged locking projections 10th

In den Figuren 2 bis 5 sind verschiedene Verbindungsmöglichkeiten der L-Leisten 7, 7′ in Form von Schnappverbindungen 14, 14′, 14˝ dargestellt. Die L-Leiste 7 weist jeweils einen zungenartigen Führungsvorsprung 11, 11′ bzw. 11˝ auf, der eine Führungsausnehmung 12, 12′ bzw. 12˝ der L-Leiste 7′ durchragt. Bei allen in den Fig. 3 bis 5 dargestellten Ausführungsbeispielen haben die Führungsvorsprünge 11 etwa einen Rechteckquerschnitt, während der Querschnitt der die Führungsvorsprünge 11, 11′ 11˝ aufnehmenden Führungsausnehmungen 12, 12′. 12˝ angepaßt ebenfalls auch rechteckig ist. Beim Ausführungsbeispiel in Fig. 3 ist am die Führungsausnehmung 12 durchragenden Ende des Führungsvorsprungs 11 ein Hinterschnappvorsprung 13 auf der Außenseite vorgesehen. Entsprechend ist die außenliegende Wandung der Führungsausnehmung 12 zumindest etwas elastisch ausgebildet, damit der Führungsvorsprung 11 mit seinem Hinterschnappvorsprung 13 bis zum Verrasten hindurchgeschoben werden kann, um so die Schnappverbindung 14 zu schließen.In Figures 2 to 5 different connection options of the L-bars 7, 7 'in the form of snap connections 14, 14', 14, are shown. The L-bar 7 each has a tongue-like guide projection 11, 11 'or 11', which extends through a guide recess 12, 12 'or 12' of the L-bar 7 '. In all of the embodiments shown in FIGS. 3 to 5, the guide projections 11 have approximately a rectangular cross section, while the cross section of the guide projections 11, 11 '11' receiving guide recesses 12, 12 '. 12˝ is also rectangular. In the exemplary embodiment in FIG. 3, a rear snap projection 13 is provided on the outside at the end of the guide projection 11 which projects through the guide recess 12. The outside is corresponding Wall of the guide recess 12 is at least somewhat elastic, so that the guide projection 11 with its rear snap projection 13 can be pushed through until it snaps in order to close the snap connection 14.

Beim Ausführungsbeispiel der Fig. 4 ist der Führungsvorsprung 11′, wie in Fig. 2 ersichtlich ist, als gespaltene Zunge ausgebildet, wobei jeder Zungenteil 15, 15′ seitlich einen Hinterschnappvorsprung 13′ aufweist, der die Führungsausnehmung 12′ seitlich hinterschnappt.In the embodiment of Fig. 4, the guide projection 11 ', as can be seen in Fig. 2, is formed as a split tongue, each tongue part 15, 15' laterally has a rear snap projection 13 'which snaps the guide recess 12' laterally.

Beim Ausführungsbeispiel der Fig. 5 ist außenseitig auf dem zungenförmigen Führungsvorsprung 11˝ ein Hinterschnappvorsprung 13˝ vorgesehen, der eine Hinterschnappkante 16 eines Durchbruchs 17 einer Seitenwand der Führungsausnehmung 12˝ hintergreift.In the embodiment of FIG. 5, a rear snap projection 13 'is provided on the outside on the tongue-shaped guide projection 11', which engages behind a rear snap edge 16 of an opening 17 in a side wall of the guide recess 12 '.

In den Fig. 6 bis 9 ist die L-Leistenausbildung in größerem Maßstab dargestellt. Es ist ersichtlich, daß die Sicherungsvorsprünge 10 praktisch an allen vier Seiten mit Aufgleitschrägen 18 versehen sind, die eine Montage der in Fig. 7 in ihrer Lage angedeuteten Lamellen 2 erleichtern. Dort ist ersichtlich, daß die abgewinkelten Enden 19 der Lamellen 2 in einer Aufnahmenut 20 zwischen den Sicherungsvorsprüngen 10 und der Teilbasis 8 aufgenommen sind. Die Länge der abgewinkelten Enden 19 entspricht dem lichten Abstand zwischen den Lamellen 2 (rechter Teil der Darstellung). Zur Erleichterung der Herstellung und Montage wird üblicherweise die Teilung der Sicherungsvorspünge 10 größer gewählt als die Lamellenteilung, bspw. um den Faktor 3, wie dies in Figur 7 im linken Teil dargestellt ist. Bei der Montage der L-Leisten 7, 7′ erfolgt hier eine teils elastische, teils plastische Verformung der Endbereiche der Lamellen 2 durch die praktisch spitz, walmdachförmig ausgebildeten Sicherungsvorsprungenden. Durch die abgewinkelten Lamellenenden 19 erfolgt eine Versteifung des Kühleraufbaus.6 to 9, the L-bar design is shown on a larger scale. It can be seen that the securing projections 10 are provided on all four sides with sliding bevels 18 which facilitate assembly of the slats 2 indicated in their position in FIG. 7. There it can be seen that the angled ends 19 of the slats 2 are received in a receiving groove 20 between the securing projections 10 and the sub-base 8. The length of the angled ends 19 corresponds to the clear distance between the slats 2 (right part of the illustration). To To facilitate manufacture and assembly, the division of the securing projections 10 is usually chosen to be larger than the lamella division, for example by a factor of 3, as is shown in the left part in FIG. 7. When installing the L-bars 7, 7 'there is a partly elastic, partly plastic deformation of the end regions of the slats 2 by the practically pointed, hipped roof-shaped locking projection ends. The angled fin ends 19 stiffen the cooler structure.

Die Montage erfolgt in einfacher Weise so, daß die Lamellen 2 in die untenliegenden L-Leisten 7′ eingelegt und dann die L-Leisten 7 von oben her aufgesetzt und die Schnappverbindungen 14 bzw. 14′ bzw. 14˝ geschlossen werden.The assembly is carried out in a simple manner so that the slats 2 are inserted into the L-bars 7 'below and then the L-bars 7 are placed from above and the snap connections 14 and 14' and 14 bzw. are closed.

Zur Erleichterung der Zusammenfügung kann auch noch am Schenkel 9, zumindest im Bereich zwischen den Sicherungsvorsprüngen 10, jeweils eine Aufgleitschräge 18′ vorgesehen sein.To facilitate assembly, a slip bevel 18 'can also be provided on the leg 9, at least in the area between the securing projections 10.

Claims (16)

  1. A heat exchanger, particularly a radiator for motor vehicles and substantially comprising a plurality of parallel tubes (1) and, extending transversely to these tubes (1), plates (2) which are supported at a distance from one another, and also, respectively adjacent the last plate (2), an end plate and water tank (3, 3′), whereby on the sides of the plate-tube block formed by the plate ends (19), cross-sectionally U-shaped side parts (4, 4′) of synthetic plastics material which are used for fixing and strengthening are provided, securing projections (10) being spaced apart on the members (9, 9′) which engage over the sides of the plates (2), the projections (10) engaging the intermediate spaces between the plates (2), the ends (19) of the plates (2) respectively bearing on the base of the cross-sectionally U-shaped side parts (4, 4′), characterised in that the cross-sectionally U-shaped side parts (4, 4′) being composed of two L-shaped strips (7, 7′) which respectively form one of the members (9, 9′) and a partial base (8, 8′), and in that the securing projections (10) disposed at a distance from one another on the members (9, 9′) end at a distance before the adjacent base part (8, 8′) and so form a receiving slot (20) and in that the ends (19)of the plates (2) are angled-over through about 90 and in that in their corner zones, these angled-over ends (19) are accommodated in the receiving slots (20) in the side parts (4, 4′).
  2. A heat exchanger according to claim 1, characterised in that the L-shaped strips (7, 7′) which form a side part (4, 4′) can, via guide projections (11) and guide recesses (12), be joined at right-angles to their plane of division and are form-lockingly connected to one another preferably by gluing, welding or plastic deformation, rigidly or via snap-action connectors (14, 14′, 14˝) in form-locking manner.
  3. A heat exchanger according to claim 2, characterised in that the guide projections (11, 11′) have their ends passing through the guide recesses (12, 12′), these ends having catch projections (13, 13′, 13˝) which engage behind undercut portions or ends of the guide recesses (12, 12′, 12˝).
  4. A heat exchanger according to one of claims 1 to 3, characterised in that the free ends of the locking projections (10) have slide-on ramps (18), preferably on three of their four lateral surfaces.
  5. A heat exchanger according to one of claims 1 to 4, characterised in that between two of the locking projections (10) there are a plurality of plates (2) supported by their angled-over ends (19).
  6. A heat exchanger according to claim 4 or 5, characterised in that the locking projections (10) are acutely, preferably hip roof-shaped by virtue of the ramps (18).
  7. A heat exchanger according to claim 5 or 6, characterised in that in the region of the locking projections (10) the plates (2) are accommodated in bundles between them by elastic and/or plastic deformation.
  8. A heat exchanger according to one of claims 1 to 7, characterised in that the space between the locking projections (10) is a multiple of the plate division.
  9. A heat exchanger according to claim 4, characterised in that the thickness of the locking projections (10) corresponds to the gap between the plates (2) while the gap between the locking projections (10) corresponds substantially to the thickness of the plates (2).
  10. A heat exchanger according to claim 9, characterised in that the inside dimension of the receiving slot (20) corresponds to roughly the thickness of the plate (2).
  11. A heat exchanger according to one of claims 1 to 10, characterised in that the angled-over ends (19) of the plates (2) extend at least as far as the next plate (2) and at most as far as the next plate (2) but one.
  12. A heat exchanger according to one of claims 1 to 3, characterised in that the arms (9, 9′) of the L-shaped strips (7, 7′) which carry the guide projections (11, 11′, 11˝) have ramps (18′) at least in the region between the guide projections (10).
  13. A heat exchanger according to one of claims 2 to 4, characterised in that the guide projection (11, 11′, 11˝) is a flat tongue of rectangular cross-section and in that the guide recess (12, 12′, 12˝) likewise has a matching rectangular cross-section.
  14. A heat exchanger according to claim 13, characterised in that the guide projection (11′) has two tongue parts (15, 15′) constructed at least with their free ends mutually resiliently designed, and of which at least one but preferably both has or have at least one catch projection (13′).
  15. A heat exchanger according to one of claims 2 to 13, characterised in that the guide recess (12˝) has at least one side wall which is preferably elastically deflectable by a snap-action projection (13˝) on the guide projection (11˝) and in that this side wall carries a catch edge (16).
  16. A heat exchanger according to claim 2 or 3, characterised in that the snap-action connections (14, 14′, 14˝) are secured form-lockingly against coming undone by the provision of a resilient tongue, a wedge or by plastic deformation.
EP90109706A 1989-06-03 1990-05-22 Heat exchanger Expired - Lifetime EP0401590B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8906837U DE8906837U1 (en) 1989-06-03 1989-06-03 Plastic side part with internal teeth
DE8906837U 1989-06-03

Publications (2)

Publication Number Publication Date
EP0401590A1 EP0401590A1 (en) 1990-12-12
EP0401590B1 true EP0401590B1 (en) 1992-10-28

Family

ID=6839797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109706A Expired - Lifetime EP0401590B1 (en) 1989-06-03 1990-05-22 Heat exchanger

Country Status (3)

Country Link
EP (1) EP0401590B1 (en)
DE (2) DE8906837U1 (en)
ES (1) ES2035679T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7766286B2 (en) 2003-01-17 2010-08-03 Behr France Hambach S.A.R.L. Holder for a heat exchanger

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8906837U1 (en) * 1989-06-03 1989-08-10 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Plastic side part with internal teeth
DE19526286A1 (en) * 1995-07-19 1997-01-23 Behr Gmbh & Co Heat exchanger
DE19605909B4 (en) * 1996-02-17 2007-06-06 Behr Gmbh & Co. Kg Heat exchanger
US5715889A (en) * 1996-05-06 1998-02-10 Ardco, Inc. Heat exchanger and the method for producing same
DE10333381B4 (en) * 2003-07-23 2005-10-27 A. Raymond & Cie Device for attaching an attachment adapter to a radiator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2371660A1 (en) * 1976-11-18 1978-06-16 Chausson Usines Sa DEVICE FOR ENSURING THE WATERPROOFING BETWEEN A RADIATOR AND A BOX OR ENCLOSURE CONTAINING IT
DE3202901C2 (en) * 1982-01-29 1984-08-09 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Heat exchangers and processes for their manufacture
FR2560368B1 (en) * 1984-02-27 1989-05-05 Valeo HEAT EXCHANGER, PARTICULARLY FOR MOTOR VEHICLES, WITH RIGID CONNECTION BETWEEN A TUBE BEAM AND A COLLECTOR-WATER BOX ASSEMBLY
DE3527054A1 (en) * 1985-07-27 1987-01-29 Sueddeutsche Kuehler Behr Heat exchanger, in particular radiator/air cooler for internal combustion engines
ES290042Y (en) * 1985-11-04 1986-10-16 Frape-Behr,S.A. STRUCTURE FOR CAR RADIATOR
FR2614688A1 (en) * 1987-04-30 1988-11-04 Chausson Usines Sa Heat exchanger of the type having tubes and fins provided with lateral cheeks
DE8906837U1 (en) * 1989-06-03 1989-08-10 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Plastic side part with internal teeth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7766286B2 (en) 2003-01-17 2010-08-03 Behr France Hambach S.A.R.L. Holder for a heat exchanger
US8282049B2 (en) 2003-01-17 2012-10-09 Behr France Hambach S.A.R.L. Holder for a heat exchanger

Also Published As

Publication number Publication date
DE8906837U1 (en) 1989-08-10
EP0401590A1 (en) 1990-12-12
DE59000399D1 (en) 1992-12-03
ES2035679T3 (en) 1993-04-16

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