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EP1492991B1 - Soldered heat exchanger - Google Patents

Soldered heat exchanger Download PDF

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Publication number
EP1492991B1
EP1492991B1 EP03720312A EP03720312A EP1492991B1 EP 1492991 B1 EP1492991 B1 EP 1492991B1 EP 03720312 A EP03720312 A EP 03720312A EP 03720312 A EP03720312 A EP 03720312A EP 1492991 B1 EP1492991 B1 EP 1492991B1
Authority
EP
European Patent Office
Prior art keywords
cover
base
partition
heat exchanger
lid
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
EP03720312A
Other languages
German (de)
French (fr)
Other versions
EP1492991A1 (en
Inventor
Patrick Jung
Fabrice Kaczmarek
Gilles Vigo
Sylvain Louis
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 France Hambach SAS
Original Assignee
Behr France Hambach SARL
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 France Hambach SARL filed Critical Behr France Hambach SARL
Publication of EP1492991A1 publication Critical patent/EP1492991A1/en
Application granted granted Critical
Publication of EP1492991B1 publication Critical patent/EP1492991B1/en
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
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49389—Header or manifold making

Definitions

  • the invention relates to a brazed heat exchanger, in particular a brazed capacitor for a motor vehicle air conditioning system according to the preamble of claim 1 - known by the EP-A-0 584 993 , Similar heat exchangers are also off EP-A-1 046 876 and GB-A-2 285 858 known.
  • heat exchanger is a so-called flat tube condenser, which consists of flat tubes, arranged between these corrugated fins and two-piece manifolds with partitions. All parts that consist of an aluminum alloy are first mechanically joined and then soldered in a soldering oven. The partitions are used as separate items in the headers and positioned there.
  • the headers consist of a cup-shaped bottom, which receives the tubes, and a likewise cup-shaped lid, which has slots for receiving and positioning the partitions.
  • each partition forms with the cover to two (claim 1) or three places (claim 2) a joint connection: Due to the double joint connection according to claim 1 between the paragraphs of the partition and the cutouts in the lid, the partition is already adequately fixed - a so-called flag as in the prior art can be omitted.
  • the partition As known - on a flag which is inserted into a corresponding slot of the lid. The paragraphs of the partition fit into the marginal cutouts of the lid, so that a "three-point storage" is given for the partition after joining.
  • the partition can no longer tilt, but is exactly, ie aligned at an angle of 90 ° to the longitudinal axis.
  • the dimensions of the partition and the marginal cutouts in the lid are chosen so that the partition wall rests inside the lid, but not with their paragraphs in the cutouts.
  • the gap defined by tolerance is filled with solder material during the soldering process and thus leads to a dense soldering.
  • Fig. 1 shows a cross section through a manifold 1, whose cross-section is bounded by a cup-shaped, semi-cylindrical bottom 2 and a likewise cup-shaped, semi-cylindrical cover 3, which is designed in terms of its outer dimensions so that it can be inserted into the bottom 2.
  • the bottom 2 has two edge regions 4, 5 extending in the longitudinal direction of the tube (perpendicular to the plane of the drawing), which overlap with edge regions 6, 7 of the lid 3.
  • the cross section of the collecting tube 1 thus formed by the bottom 2 and the cover 3 is filled by a dividing wall 8 which, in its region facing the cover 3, has a lug 8a which penetrates a recess 3a (see Fig.
  • the partition wall 8 also has two paragraphs 8b, 8c in the region of the edges 6, 7 of the lid 3.
  • the bottom 2 receives in a manner not shown (eg in passages) flat tubes 9, which together with not shown corrugated fins form the network of a condenser for a motor vehicle air conditioning.
  • Fig. 2 and Fig. 2a show the manifold 1 without the lid 2, ie only with bottom 3 and partition 8, which has a width b.
  • Fig. 3 and Fig. 3a show the cover 3 as a single part, on the one hand, the slot 3a for receiving the (not shown flags 8a) and on the other hand, the two sections 3b, 3c in the edges 6, 7 of the bottom 3 can be seen.
  • the cutouts 3b, 3c are U-shaped, ie, they are open towards the outside, and have two parallel side surfaces 13, 14 and a base 15 running perpendicular to them.
  • the distance between the two side surfaces 13, 14 has the dimension b, which corresponds to the width b of the partition 8.
  • the assembly of the collection tube 1 is carried out as follows: first, the partitions 8 are inserted into the lid 3, and first introduced with their flag 8a in the slots 3a. After a short insertion path paragraphs 8b, 8c engage in the groove-shaped incisions 3b, 3c, ie the partition wall sections 8b, 8c slide like a feather key into a groove. The insertion movement of the partition 8 is completed when the abutment point A1 is reached inside the lid. In this position, there is still some air between paragraphs 8b, 8c and the base surface 15 of the cuts 3b, 3c, ie a minimal gap s (cf., FIGS. 1a and 2). This ensures that the partition 8 is always moved to the stop A1.
  • the partition 8 Due to the tolerances between the partition 8, 8a and the slot 3a and the incisions 3c, 3b, the partition 8 is slightly clamped in this position, so that it is fixed. Thereafter, the bottom 2 is pushed onto the lid 3 (or the lid 3 with the partition 8 inserted into the bottom 2). This insertion movement takes place until the partition wall 8 touches the stop point A2 in the interior of the lid 2. This ensures that the partition 8 has only one stop point, namely A2 with the bottom 2. It follows that the partition wall 8 can create both full against the inner wall of the lid 2 and against the inner wall of the bottom 3.
  • the partition 8 is also aligned by the above-mentioned three-point bearing perpendicular to the longitudinal axis, ie, the peripheral surface of the partition 8 is parallel to the inner wall of the lid 3 and bottom 2. These are the requirements for proper soldering.
  • the gap s between sections 8b, 8c and the base line 15 of the cuts 3b, 3c is filled during the soldering process with solder and is otherwise covered to the outside by the overlapping edge portions 4, 5 of the bottom, so that both outwardly and between the two adjacent chambers 10 and 11 is leaktight.
  • FIGS. 4 and 4a show a further embodiment of the invention with a modified partition wall shape in a representation analogous to FIGS. 2 and 2a.
  • Fig. 4 shows in a cross section a cover 20 of a manifold not fully shown.
  • the lid 20 has an approximately semi-oval cross-section and is bounded by edge regions 21, 22 upwards (in the drawing).
  • edge regions 21, 22 groove-like incisions 24, 25 are arranged in each case at the locations where a dividing wall is provided, which are illustrated by dashed lines in FIG. 4.
  • FIG. 4 a only the front incision 24 appears.
  • a partition wall 23 is inserted, which abuts with its lower half 23 a with its entire circumference on the inner surface of the lid 20.
  • the upper half 23b of the partition wall 23 has a larger diameter Db by twice the wall thickness d than the lower half 23a having a diameter Da. Both cross-sectional halves 23a and 23b merge into one another via a shoulder 23c, 23d. The shoulders 23c, 23d engage in the recesses 24, 25 and thus form a double joint between partition wall 23 and cover 20; This is sufficient for the positioning of the partition wall 23.
  • the partition wall 23 has no flag which is inserted through a slot in the lid. Rather, the lid 20 has a continuous, that is not interrupted by slots cross-section. This eliminates the insertion of the partition through the lid and the subsequent soldering, ie the risk of leakage is further reduced.
  • the assembly of the partition wall 23 takes place in such a way that it is inserted with its smaller half 23a in the lid 20a, so that the partition wall 23 with the lid 20 forms a common stop surface B1.
  • a gap s is left between the edge regions 21, 22 and the shoulders 23c, 23d.
  • the paragraphs 23c, 23d thus fit - like a key / groove connection - in the groove-like cutouts 24, 25 of the lid 20 a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Coating With Molten Metal (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to a soldered heat exchanger, especially a capacitor for a motor vehicle ventilation system, comprising a heat exchanger network made of tubes and ribs and at least one collector pipe made of a base ( 2 ) and a cover ( 3 ) and separating walls ( 8 ), whereby the base ( 2 ) and the cover ( 3 ) have edges ( 4, 5, 6, 7 ) which overlap on the longitudinal sides thereof. The base ( 2 ) receives the ends of the tubes and the separating walls ( 8 ) are fixed in relation to the cover ( 3 ) by means of a first and second shoulder ( 8 b , 8 c and a lug ( 8 a). According to the invention, groove-shaped recesses ( 3 b , 3 c) are arranged in the edges ( 6, 7 ) of the cover ( 3 ) in the region of the separating walls ( 8 ), wherein the shoulders ( 8 b , 8 c) of the separating walls ( 8 ) engage. A secure positioning of the separating walls in the collector pipe is obtained in addition to a leakage-free soldering of the capacitor.

Description

Die Erfindung betrifft einen gelöteten Wärmeübertrager, insbesondere einen gelöteten Kondensator für eine Kraftfahrzeug-Klimaanlage nach dem Oberbegriff von Patentanspruch 1 - bekannt durch die EP-A-0 584 993 . Ähnliche Wärmeübertrager sind außerdem aus EP-A-1 046 876 und GB-A-2 285 858 bekannt.The invention relates to a brazed heat exchanger, in particular a brazed capacitor for a motor vehicle air conditioning system according to the preamble of claim 1 - known by the EP-A-0 584 993 , Similar heat exchangers are also off EP-A-1 046 876 and GB-A-2 285 858 known.

Ein aus DE-A 43 39 952 bekannter Wärmeübertrager ist ein sogenannter Flachrohrkondensator, der aus Flachrohren, zwischen diesen angeordneten Wellrippen und zweiteiligen Sammelrohren mit Trennwänden besteht. Sämtliche Teile, die aus einer Aluminiumlegierung bestehen, werden zunächst mechanisch gefügt und dann in einem Lötofen gelötet. Die Trennwände werden als separate Einzelteile in die Sammelrohre eingesetzt und dort positioniert. Die Sammelrohre bestehen aus einem schalenförmigen Boden, der die Rohre aufnimmt, und einem ebenfalls schalenförmig ausgebildeten Deckel, welcher Schlitze zur Aufnahme und Positionierung der Trennwände aufweist. Beim Fügen dieser drei Teile, d. h. des Bodens, der Trennwände und des Deckels können sich Toleranzprobleme ergeben, weil die Trennwände aufgrund ihrer geometrischen Ausbildung an einer Stelle am Boden, jedoch an zwei Stellen am Deckel anliegen - dies kann zu einer statischen Überbestimmung dieser drei Teile und infolge dessen zu Undichtigkeiten nach dem Lötprozess führen.On off DE-A 43 39 952 known heat exchanger is a so-called flat tube condenser, which consists of flat tubes, arranged between these corrugated fins and two-piece manifolds with partitions. All parts that consist of an aluminum alloy are first mechanically joined and then soldered in a soldering oven. The partitions are used as separate items in the headers and positioned there. The headers consist of a cup-shaped bottom, which receives the tubes, and a likewise cup-shaped lid, which has slots for receiving and positioning the partitions. When joining these three parts, ie the bottom, the partitions and the cover tolerance problems may arise because the partitions due to their geometric design at one point on the ground, but in two places on the cover abut - this can be a static Overdetermination of these three parts and as a result lead to leaks after the soldering process.

Es ist Aufgabe der vorliegenden Erfindung, eine Positionierung und Befestigung der Trennwände im Sammelrohr des eingangs genannten Kondensators dahingehend zu verbessern, dass eine korrekte Positionierung der Trennwand im Sammelrohr und eine leckagefreie Lötung gewährleistet sind.It is an object of the present invention to improve the positioning and fastening of the partitions in the manifold of the aforementioned capacitor to the effect that a correct positioning of the partition in the manifold and a leak-free soldering are guaranteed.

Die Lösung dieser Aufgabe erfolgt für den eingangs genannten Wärmeübertrager durch die Merkmale des Patentanspruchs 1. Demzufolge weist der Deckel des Sammelrohres im Bereich der Trennwände an seinen Rändern Ausschnitte auf, in welche die Trennwände eingreifen, d. h. jede Trennwand bildet mit dem Deckel an zwei (Anspruch 1) bzw. drei Stellen (Anspruch 2) eine Fügeverbindung: Durch die zweifache Fügeverbindung gemäß Anspruch 1 zwischen den Absätzen der Trennwand und den Ausschnitten im Deckel ist die Trennwand bereits hinreichend fixiert - eine so genannte Fahne wie beim Stand der Technik kann entfallen. Bei der nebengeordneten Lösung gemäß Anspruch 2 weist die Trennwand - wie bekannt - eine Fahne auf, die in einen entsprechenden Schlitz des Deckels eingeführt ist. Die Absätze der Trennwand fügen sich in die randseitigen Ausschnitte des Deckels ein, so dass eine "Dreipunktlagerung" für die Trennwand nach dem Fügen gegeben ist. Die Trennwand kann damit nicht mehr kippen, sondern ist exakt, d. h. im Winkel von 90 ° zur Längsachse ausgerichtet. Die Abmessungen der Trennwand und der randseitigen Ausschnitte im Deckel sind so gewählt, dass die Trennwand im Inneren des Deckels aufliegt, jedoch nicht mit ihren Absätzen in den Ausschnitten. Nach dem Fügen von Trennwänden und Deckel wird der Boden über den Deckel mit den vormontierten Trennwänden bis zum Anschlag an die Trennwände geschoben und - wie bekannt - durch Körnerschläge gesichert. Der Boden liegt dann mit seiner Innenfläche somit nur mit einer Stelle an der Trennwand an. Insgesamt ergibt sich somit ein statisch bestimmtes System von Deckel, Trennwand und Boden, d. h. es ergeben sich eindeutige Anlageflächen mit minimalen Spalten, so dass eine leckfreie Lötung erzielt werden kann. Zwischen den Absätzen der Trennwand und der Grundfläche der randseitigen Ausschnitte ist ein gewisses Spiel vorgesehen.Accordingly, the cover of the collecting tube in the region of the partitions at its edges cutouts, in which engage the partitions, ie each partition forms with the cover to two (claim 1) or three places (claim 2) a joint connection: Due to the double joint connection according to claim 1 between the paragraphs of the partition and the cutouts in the lid, the partition is already adequately fixed - a so-called flag as in the prior art can be omitted. In the sibling solution according to claim 2, the partition - as known - on a flag which is inserted into a corresponding slot of the lid. The paragraphs of the partition fit into the marginal cutouts of the lid, so that a "three-point storage" is given for the partition after joining. The partition can no longer tilt, but is exactly, ie aligned at an angle of 90 ° to the longitudinal axis. The dimensions of the partition and the marginal cutouts in the lid are chosen so that the partition wall rests inside the lid, but not with their paragraphs in the cutouts. After joining partitions and cover the floor is pushed over the lid with the pre-assembled partitions to the stop on the partitions and - as known - secured by grain impacts. The floor is then with its inner surface thus only with a point on the partition. Overall, this results in a statically determined system of cover, partition and floor, ie there are clear contact surfaces with minimal gaps, so that a leak-free soldering can be achieved. Between the paragraphs of the partition and the base of the marginal cutouts a certain game is provided.

Dadurch ist sichergestellt, dass zwischen Trennwand einerseits und Deckel sowie Boden andererseits jeweils nur eine Anlagefläche besteht. Der durch Toleranz definierte Spalt wird beim Lötprozess mit Lotmaterial gefüllt und führt somit zu einer dichten Lötung.This ensures that between the partition on the one hand and the lid and bottom on the other hand only one contact surface. The gap defined by tolerance is filled with solder material during the soldering process and thus leads to a dense soldering.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher beschrieben. Es zeigen

Fig. 1
einen Querschnitt durch ein Sammelrohr mit Trennwand,
Fig. 1a
eine Seitenansicht von Fig. 2,
Fig. 2
einen Querschnitt durch den Deckel und die Trennwand des Sammlerohres
Fig. 2a
eine Seitenansicht von Fig. 2,
Fig. 3
einen Querschnitt durch den Deckel des Sammelrohres in der Ebene der Trennwand,
Fig. 3a
eine Seitenansicht von Fig. 3 und
Fig. 4, 4a
eine abgewandelte Ausführungsform mit einer Trennwand ohne "Fahne".
Embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it
Fig. 1
a cross section through a manifold with partition,
Fig. 1a
a side view of Fig. 2,
Fig. 2
a cross section through the lid and the partition of the collector ear
Fig. 2a
a side view of Fig. 2,
Fig. 3
a cross section through the cover of the manifold in the plane of the partition,
Fig. 3a
a side view of Fig. 3 and
Fig. 4, 4a
a modified embodiment with a partition wall without "flag".

Fig. 1 zeigt einen Querschnitt durch ein Sammelrohr 1, dessen Querschnitt durch einen schalenförmigen, halbzylindrischen Boden 2 und einen ebenfalls schalenförmigen, halbzylindrischen Deckel 3 begrenzt wird, der hinsichtlich seiner Außenausmessung so gestaltet ist, dass er in den Boden 2 eingesetzt werden kann. Der Boden 2 weist zwei in Längsrichtung des Rohres (senkrecht zur Zeichenebene) verlaufende Randbereiche 4, 5 auf, die sich mit Randbereichen 6, 7 des Deckels 3 überlappen. Der so durch Boden 2 und Deckel 3 gebildete Querschnitt des Sammelrohres 1 ist durch eine Trennwand 8 ausgefüllt, welche in ihrem dem Deckel 3 zugewandten Bereich eine Fahne 8a aufweist, welche eine Ausnehmung 3a (vgl. Fig. 3) des Deckels 3 nach außen durchdringt. Die Trennwand 8 weist ferner zwei Absätze 8b, 8c im Bereich der Ränder 6, 7 des Deckels 3 auf. Der Boden 2 nimmt in nicht näher dargestellter Weise (z. B. in Durchzügen) Flachrohre 9 auf, die zusammen mit nicht dargestellten Wellrippen das Netz eines Kondensators für eine Kraftfahrzeug-Klimaanlage bilden. Fig. 1 shows a cross section through a manifold 1, whose cross-section is bounded by a cup-shaped, semi-cylindrical bottom 2 and a likewise cup-shaped, semi-cylindrical cover 3, which is designed in terms of its outer dimensions so that it can be inserted into the bottom 2. The bottom 2 has two edge regions 4, 5 extending in the longitudinal direction of the tube (perpendicular to the plane of the drawing), which overlap with edge regions 6, 7 of the lid 3. The cross section of the collecting tube 1 thus formed by the bottom 2 and the cover 3 is filled by a dividing wall 8 which, in its region facing the cover 3, has a lug 8a which penetrates a recess 3a (see Fig. 3) of the cover 3 to the outside , The partition wall 8 also has two paragraphs 8b, 8c in the region of the edges 6, 7 of the lid 3. The bottom 2 receives in a manner not shown (eg in passages) flat tubes 9, which together with not shown corrugated fins form the network of a condenser for a motor vehicle air conditioning.

Fig. 2 und Fig. 2a zeigen das Sammelrohr 1 ohne den Deckel 2, d. h. nur mit Boden 3 und Trennwand 8, die eine Breite b aufweist. Fig. 2 and Fig. 2a show the manifold 1 without the lid 2, ie only with bottom 3 and partition 8, which has a width b.

Fig. 3 und Fig. 3a zeigen den Deckel 3 als Einzelteil, wobei einerseits der Schlitz 3a zur Aufnahme der (hier nicht dargestellten Fahnen 8a) und andererseits die beiden Ausschnitte 3b, 3c in den Rändern 6, 7 des Bodens 3 erkennbar sind. Die Ausschnitte 3b, 3c sind U-förmig, d. h. nach außen offen, ausgebildet und weisen zwei parallele Seitenflächen 13, 14 sowie eine senkrecht zu diesen verlaufende Grundfläche 15 auf. Der Abstand der beiden Seitenflächen 13, 14 hat das Maß b, welches der Breite b der Trennwand 8 entspricht. Fig. 3 and Fig. 3a show the cover 3 as a single part, on the one hand, the slot 3a for receiving the (not shown flags 8a) and on the other hand, the two sections 3b, 3c in the edges 6, 7 of the bottom 3 can be seen. The cutouts 3b, 3c are U-shaped, ie, they are open towards the outside, and have two parallel side surfaces 13, 14 and a base 15 running perpendicular to them. The distance between the two side surfaces 13, 14 has the dimension b, which corresponds to the width b of the partition 8.

Die Montage des Sammelrohres 1 wird wie folgt durchgeführt: zunächst werden in den Deckel 3 die Trennwände 8 eingesetzt, und zwar zuerst mit ihrer Fahne 8a in die Schlitze 3a eingeführt. Nach einem kurzen Einführweg greifen die Absätze 8b, 8c in die nutförmigen Einschnitte 3b, 3c ein, d. h. die Trennwandabschnitte 8b, 8c gleiten wie eine Passfeder in eine Nut. Die Einführbewegung der Trennwand 8 ist beendet, wenn die Anschlagstelle A1 im Inneren des Deckels erreicht ist. In dieser Stellung befindet sich zwischen den Absätzen 8b, 8c und der Grundfläche 15 der Einschnitte 3b, 3c noch etwas Luft, d. h. ein minimaler Spalt s (vgl. Fig. 1a und Fig. 2). Damit ist gewährleistet, dass die Trennwand 8 immer auf den Anschlag A1 gefahren wird. Aufgrund der Toleranzen zwischen Trennwand 8, 8a und dem Schlitz 3a sowie den Einschnitten 3c, 3b ist die Trennwand 8 in dieser Stellung leicht geklemmt, so dass sie fixiert ist. Danach wird der Boden 2 auf den Deckel 3 aufgeschoben (oder der Deckel 3 mit der Trennwand 8 in den Boden 2 eingeschoben). Diese Einschiebbewegung erfolgt soweit, bis die Trennwand 8 die Anschlagstelle A2 im Inneren des Deckels 2 berührt. Damit ist sichergestellt, dass die Trennwand 8 nur eine Anschlagstelle, nämlich A2 mit dem Boden 2 hat. Daraus folgt, dass sich die Trennwand 8 sowohl gegenüber der Innenwand des Deckels 2 als auch gegenüber der Innenwand des Bodens 3 voll umfänglich anlegen kann. Darüber hinaus ist die Trennwand 8 auch durch die bereits oben erwähnte Dreipunktlagerung senkrecht zur Längsachse ausgerichtet, d. h. die Umfangsfläche der Trennwand 8 verläuft parallel zur Innenwandung von Deckel 3 und Boden 2. Dies sind die Voraussetzungen für eine einwandfreie Lötung. Der zwischen den Absätzen 8b, 8c und der Grundlinie 15 der Einschnitte 3b, 3c bestehende Spalt s wird während des Lötprozesses mit Lot gefüllt und ist im Übrigen nach außen durch die überlappenden Randbereiche 4, 5 des Bodens abgedeckt, so dass sowohl nach außen als auch zwischen den beiden angrenzenden Kammern 10 und 11 Dichtheit besteht.The assembly of the collection tube 1 is carried out as follows: first, the partitions 8 are inserted into the lid 3, and first introduced with their flag 8a in the slots 3a. After a short insertion path paragraphs 8b, 8c engage in the groove-shaped incisions 3b, 3c, ie the partition wall sections 8b, 8c slide like a feather key into a groove. The insertion movement of the partition 8 is completed when the abutment point A1 is reached inside the lid. In this position, there is still some air between paragraphs 8b, 8c and the base surface 15 of the cuts 3b, 3c, ie a minimal gap s (cf., FIGS. 1a and 2). This ensures that the partition 8 is always moved to the stop A1. Due to the tolerances between the partition 8, 8a and the slot 3a and the incisions 3c, 3b, the partition 8 is slightly clamped in this position, so that it is fixed. Thereafter, the bottom 2 is pushed onto the lid 3 (or the lid 3 with the partition 8 inserted into the bottom 2). This insertion movement takes place until the partition wall 8 touches the stop point A2 in the interior of the lid 2. This ensures that the partition 8 has only one stop point, namely A2 with the bottom 2. It follows that the partition wall 8 can create both full against the inner wall of the lid 2 and against the inner wall of the bottom 3. In addition, the partition 8 is also aligned by the above-mentioned three-point bearing perpendicular to the longitudinal axis, ie, the peripheral surface of the partition 8 is parallel to the inner wall of the lid 3 and bottom 2. These are the requirements for proper soldering. The gap s between sections 8b, 8c and the base line 15 of the cuts 3b, 3c is filled during the soldering process with solder and is otherwise covered to the outside by the overlapping edge portions 4, 5 of the bottom, so that both outwardly and between the two adjacent chambers 10 and 11 is leaktight.

Nach dem Fügen von Trennwänden 8, Deckel 3 und Boden 2 können die sich überlappenden Randbereiche 4/6 und 5/7 - wie aus dem eingangs erwähnten Stand der Technik bekannt - durch Körnerschläge gesichert werden. Danach wird der gesamte Kondensator im Ofen gelötet.After joining partitions 8, cover 3 and bottom 2, the overlapping edge regions 4/6 and 5/7 - as known from the prior art mentioned above - be secured by grain impacts. Thereafter, the entire capacitor is soldered in the oven.

Fig. 4 und 4a zeigen ein weiteres Ausführungsbeispiel der Erfindung mit einer abgewandelten Trennwandform in einer Darstellung analog zu Fig. 2 und 2a. Fig. 4 zeigt in einem Querschnitt einen Deckel 20 eines nicht vollständig dargestellten Sammelrohres. Der Deckel 20 weist einen etwa halbovalförmigen Querschnitt auf und ist durch Randbereiche 21, 22 nach oben (in der Zeichnung) begrenzt. In diesen Randbereichen 21,22 sind jeweils an den Stellen, wo eine Trennwand vorgesehen ist, nutartige Einschnitte 24, 25 angeordnet, die in Fig. 4 gestrichelt dargestellt sindin Fig. 4a erscheint nur der vordere Einschnitt 24. In den freien Querschnitt des Deckels 20 ist eine Trennwand 23 eingesetzt, die mit ihrer unteren Hälfte 23a mit ihrem gesamten Umfang an der Innenfläche des Deckels 20 anliegt. Die obere Hälfte 23b der Trennwand 23 weist einen um die doppelte Wandstärke d größeren Durchmesser Db als die untere Hälfte 23a mit einem Durchmesser Da auf. Beide Querschnittshälften 23a und 23b gehen jeweils über einen Absatz 23c, 23d ineinander über: Die Absätze 23c, 23d greifen in die Einschnitte 24, 25 ein und bilden somit eine zweifache Fügeverbindung zwischen Trennwand 23 und Deckel 20; dies ist für die Positionierung der Trennwand 23 ausreichend. Im Unterschied zu dem vorherigen Ausführungsbeispiel, dargestellt in den Figuren 1 bis 3, weist die Trennwand 23 keine Fahne auf, die durch einen Schlitz im Deckel gesteckt wird. Vielmehr hat der Deckel 20 einen durchgehenden, d. h. nicht durch Schlitze unterbrochenen Querschnitt. Damit entfällt das Durchstecken der Trennwand durch den Deckel und die anschließende Verlötung, d. h. das Risiko einer Leckage wird weiter verringert. 4 and 4a show a further embodiment of the invention with a modified partition wall shape in a representation analogous to FIGS. 2 and 2a. Fig. 4 shows in a cross section a cover 20 of a manifold not fully shown. The lid 20 has an approximately semi-oval cross-section and is bounded by edge regions 21, 22 upwards (in the drawing). In these edge regions 21, 22, groove-like incisions 24, 25 are arranged in each case at the locations where a dividing wall is provided, which are illustrated by dashed lines in FIG. 4. In FIG. 4 a only the front incision 24 appears. In the free cross section of the cover 20 is a partition wall 23 is inserted, which abuts with its lower half 23 a with its entire circumference on the inner surface of the lid 20. The upper half 23b of the partition wall 23 has a larger diameter Db by twice the wall thickness d than the lower half 23a having a diameter Da. Both cross-sectional halves 23a and 23b merge into one another via a shoulder 23c, 23d. The shoulders 23c, 23d engage in the recesses 24, 25 and thus form a double joint between partition wall 23 and cover 20; This is sufficient for the positioning of the partition wall 23. In contrast to the previous embodiment, shown in Figures 1 to 3, the partition wall 23 has no flag which is inserted through a slot in the lid. Rather, the lid 20 has a continuous, that is not interrupted by slots cross-section. This eliminates the insertion of the partition through the lid and the subsequent soldering, ie the risk of leakage is further reduced.

Die Montage der Trennwand 23 erfolgt in der Weise, dass diese mit ihrer kleineren Hälfte 23a in den Deckel 20a eingesetzt wird, so dass die Trennwand 23 mit dem Deckel 20 eine gemeinsame Anschlagfläche B1 bildet. Damit es im Bereich B1 definitiv zu einem Anschlag bzw. Kontakt kommt, ist zwischen den Randbereichen 21, 22 und den Absätzen 23c, 23d ein Spalt s belassen. Die Absätze 23c, 23d fügen sich somit - wie eine Passfeder/ Nut-Verbindung - in die nutartigen Ausschnitte 24, 25 des Deckels 20 ein.The assembly of the partition wall 23 takes place in such a way that it is inserted with its smaller half 23a in the lid 20a, so that the partition wall 23 with the lid 20 forms a common stop surface B1. In order for a stop or contact to definitely come about in the region B1, a gap s is left between the edge regions 21, 22 and the shoulders 23c, 23d. The paragraphs 23c, 23d thus fit - like a key / groove connection - in the groove-like cutouts 24, 25 of the lid 20 a.

Zur Vervollständigung des Sammelrohres wird über den Deckel 20 mit eingesetzter Trennwand 23 - analog dem Ausführungsbeispiel gemäß Fig. 1 - ein hier nicht dargestellter Boden geschoben, so dass sich zwischen Trennwand 23 und nicht dargestelltem Boden eine Anschlagfläche B2 bildet. Damit ergeben sich für die Montage des gesamten Sammelrohres, bestehend aus Deckel 20, Trennwand 23 und nicht dargestelltem Boden aufgrund von nur zwei Anschlagflächen B1, B2 definierte Anschlagverhältnissse, d. h. eine leckagefreie Verlötung der Trennwand 23 im Sammelrohr.To complete the manifold is inserted over the cover 20 with inserted partition 23 - analogous to the embodiment of FIG. 1 - a bottom not shown here, so that forms a stop surface B2 between partition 23 and not shown bottom. This results in the assembly of the entire manifold consisting of cover 20, partition 23 and not shown ground due to only two stop surfaces B1, B2 defined Anschlagverhältnissse, d. H. a leak-free soldering of the partition wall 23 in the manifold.

Claims (3)

  1. A soldered heat exchanger, in particular a refrigerant condenser, having a heat exchange network of pipes and ribs and at least one collecting tube which consists of a base (2), a cover (3, 20) and dividing walls (8, 23), the base (2) and cover (3, 20) having longitudinally overlapping edges (4, 5, 6, 7; 21, 22), the base (2) receiving the ends of the tubes (9) and the dividing walls (8, 23) having first and second projections (8b, 8c, 23c, 23d) which lie on the edges (6, 7; 21, 22) of the cover (3, 20), the two edges (6, 7; 21, 22) of the cover (3, 20) having groove-like recesses (3b, 3c; 24, 25) in the area of the dividing walls (8, 23) in which the projections (3b, 3c; 24, 25) on the dividing walls (8, 23) engage and, after the connection of the base (2) and the cover (3, 20), the dividing walls (8, 23) forming a first bearing surface (A1, B1) with the cover (3, 20) and a second bearing surface (A2, B2) with the base (2),
    characterised in that
    a gap (s) is left between the projections (8b, 8c; 23c, 23d) on the dividing walls (8, 23) and the base face (15) of the recess (3b, 3c; 24, 25).
  2. A heat exchanger in accordance with claim 1,
    characterised in that
    the dividing wall (8) has a lug (8a) which passes through a slit (3a) in the cover (3).
  3. A heat exchanger in accordance with claim 1 or 2,
    characterised in that
    the recesses (3b, 3c; 24. 25) have two parallel lateral faces (13, 14) and one base face (15) perpendicular thereto, and the distance between the lateral faces (13, 14) corresponds to the width (b) of the dividing wall (8).
EP03720312A 2002-03-20 2003-02-27 Soldered heat exchanger Expired - Lifetime EP1492991B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10212306 2002-03-20
DE10212306A DE10212306A1 (en) 2002-03-20 2002-03-20 Brazed heat exchanger
PCT/EP2003/002041 WO2003078912A1 (en) 2002-03-20 2003-02-27 Soldered heat exchanger

Publications (2)

Publication Number Publication Date
EP1492991A1 EP1492991A1 (en) 2005-01-05
EP1492991B1 true EP1492991B1 (en) 2007-09-19

Family

ID=27797963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720312A Expired - Lifetime EP1492991B1 (en) 2002-03-20 2003-02-27 Soldered heat exchanger

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US (1) US7059398B2 (en)
EP (1) EP1492991B1 (en)
JP (1) JP2005521020A (en)
CN (1) CN1643329A (en)
AT (1) ATE373806T1 (en)
AU (1) AU2003223950A1 (en)
DE (2) DE10212306A1 (en)
WO (1) WO2003078912A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1557630A1 (en) 2004-01-23 2005-07-27 BEHR Lorraine S.A.R.L. Heat exchanger
DE102005016941A1 (en) * 2005-04-12 2006-10-19 Behr Gmbh & Co. Kg Collector of a condenser and condenser with such a manifold
CN101451793B (en) * 2007-11-30 2010-08-18 三花丹佛斯（杭州）微通道换热器有限公司 Heat exchanger and liquid collection tube thereof
FR3013436B1 (en) * 2013-11-18 2018-12-07 Valeo Systemes Thermiques COLLECTOR FOR HEAT EXCHANGER
CN103868398B (en) * 2014-02-26 2016-08-31 美的集团股份有限公司 Header and there is the parallel-flow heat exchanger of this header
JP2015194326A (en) * 2014-03-20 2015-11-05 カルソニックカンセイ株式会社 heat exchanger
JP2015194327A (en) * 2014-03-20 2015-11-05 カルソニックカンセイ株式会社 heat exchanger
DE102023209475A1 (en) 2023-09-27 2025-03-27 Mahle International Gmbh heat exchanger

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US4936381A (en) * 1988-12-27 1990-06-26 Modine Manufacturing Company Baffle for tubular header
JP2513997Y2 (en) * 1989-04-11 1996-10-09 サンデン株式会社 Header pipe
JPH0729416Y2 (en) * 1990-04-05 1995-07-05 株式会社ゼクセル Heat exchanger tank partitioning device
US5209292A (en) * 1992-05-15 1993-05-11 Zexel Usa Corporation Condenser header and tank assembly with interference fit baffle
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FR2696809B1 (en) * 1992-10-14 1994-12-02 Valeo Thermique Moteur Sa Tubular wall in two parts and method for manufacturing a motor vehicle air conditioning condenser.
DE4325421A1 (en) * 1993-07-29 1995-02-02 Behr Gmbh & Co Heat exchanger, in particular a condenser for motor vehicles
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WO2002055947A1 (en) * 2001-01-16 2002-07-18 Zexel Valeo Climate Control Corporation Heat exchanger

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JP2005521020A (en) 2005-07-14
EP1492991A1 (en) 2005-01-05
DE50308220D1 (en) 2007-10-31
CN1643329A (en) 2005-07-20
WO2003078912A1 (en) 2003-09-25
US7059398B2 (en) 2006-06-13
DE10212306A1 (en) 2003-10-02
AU2003223950A1 (en) 2003-09-29
ATE373806T1 (en) 2007-10-15
US20050126771A1 (en) 2005-06-16

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