EP1492991A1 - Soldered heat exchanger - Google Patents

Soldered heat exchanger

Info

Publication number
EP1492991A1
EP1492991A1 EP03720312A EP03720312A EP1492991A1 EP 1492991 A1 EP1492991 A1 EP 1492991A1 EP 03720312 A EP03720312 A EP 03720312A EP 03720312 A EP03720312 A EP 03720312A EP 1492991 A1 EP1492991 A1 EP 1492991A1
Authority
EP
European Patent Office
Prior art keywords
cover
partition
base
heat exchanger
edges
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.)
Granted
Application number
EP03720312A
Other languages
German (de)
French (fr)
Other versions
EP1492991B1 (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

Links

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 soldered heat exchanger, in particular a soldered condenser for a motor vehicle air conditioning system according to the preamble of claims 1 and 2 - known from DE-A 43 39 952.
  • the known heat exchanger is a so-called flat tube condenser, which consists of flat tubes, corrugated fins arranged between them and two-part header tubes with partitions. All parts, which consist of an aluminum alloy, are first mechanically joined and then soldered in a soldering furnace. The partitions are inserted as separate individual parts in the header pipes and positioned there.
  • the collecting pipes consist of a bowl-shaped bottom, which receives the pipes, and a likewise bowl-shaped cover, which has slots for receiving and positioning the partitions.
  • the cover of the collecting tube has cutouts in the region of the partition walls at its edges, into which the partition walls engage, ie each partition wall forms two with the cover (Claim 1) or three places (Claim 2) a joint connection: Due to the double joint connection according to claim 1 between the shoulders of the partition and the cutouts in the cover, the partition is already sufficiently fixed - a so-called flag as in the prior art can be omitted , In the secondary solution according to claim 2, the partition - as is known - has a flag which is inserted into a corresponding slot in the cover.
  • the heels of the partition insert into the peripheral cut-outs of the lid, so that a "three-point bearing" is given for the separation wall after joining is.
  • the partition wall may thus not tilt, but is exact, ie at an angle of 90 ° to the longitudinal axis
  • the dimensions of the partition and the cut-outs in the cover are selected so that the partition rests on the inside of the cover, but not with its shoulders in the cut-outs.
  • the bottom is placed over the cover with the pre-assembled Partitions are pushed as far as they will go to the partition walls and - as is known - secured with grain punches.
  • the inner surface of the floor then only bears against the partition at one point. Overall, this results in a statically determined system of cover, partition wall and floor, ie there are clear contact surfaces with minimal gaps, so that leak-free soldering can be achieved.
  • a certain amount of play is provided between the shoulders of the partition and the base of the cutouts on the edge. This ensures that there is only one contact surface between the partition on the one hand and the cover and base on the other.
  • the gap defined by tolerance is filled with solder material during the soldering process and thus leads to tight soldering.
  • FIG. 1a is a side view of Fig. 2,
  • Fig. 2 shows a cross section through the lid and the partition of the
  • FIG. 2a is a side view of FIG. 2,
  • Fig. 3a is a side view of Fig. 3 and
  • Fig. 1 shows a cross section through a manifold 1, the cross section of which is delimited by a shell-shaped, semi-cylindrical bottom 2 and a likewise shell-shaped, semi-cylindrical cover 3, which is designed with regard to its external dimension so that it can be inserted into the bottom 2.
  • the base 2 has two edge regions 4, 5 which run in the longitudinal direction of the tube (perpendicular to the plane of the drawing) and which overlap with edge regions 6, 7 of the cover 3.
  • the cross section of the collecting tube 1 thus formed by the base 2 and cover 3 is filled by a partition 8, which in its area facing the cover 3 has a flag 8a which penetrates a recess 3a (see FIG.
  • the partition 8 also has two shoulders 8b, 8c in the region of the edges 6, 7 of the cover 3.
  • the base 2 receives flat tubes 9 in a manner not shown in detail (e.g. in passages) which, together with corrugated fins (not shown), form the network of a condenser for a motor vehicle air conditioning system.
  • 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.
  • the cutouts 3b, 3c are U-shaped, i. H. open to the outside, designed and have two parallel side surfaces 13, 14 and a base surface 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 collecting tube 1 is carried out as follows: first, the partition walls 8 are inserted into the cover 3, first with their flag 8a inserted into the slots 3a. After a short insertion path, the shoulders 8b, 8c engage in the groove-shaped incisions 3b, 3c, ie the partition sections 8b, 8c slide into a groove like a feather key. The insertion movement of the partition 8 is ended when the stop A1 is reached inside the cover. In this position there is still some air between the shoulders 8b, 8c and the base 15 of the incisions 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.
  • the bottom 2 is then pushed onto the lid 3 (or the lid 3 with the partition 8 is pushed into the bottom 2). This insertion movement takes place until the partition 8 touches the stop A2 in the interior of the cover 2. This ensures that the partition 8 has only one stop, namely A2 with the bottom 2. It follows from this that the partition 8 can lie completely against the inner wall of the cover 2 and also against the inner wall of the bottom 3.
  • the partition 8 is also aligned perpendicular to the longitudinal axis by the three-point bearing mentioned above, ie the peripheral surface of the partition 8 runs parallel to the inner wall of the lid 3 and bottom 2. These are the prerequisites for perfect soldering.
  • the gap s existing between paragraphs 8b, 8c and the base line 15 of the incisions 3b, 3c is filled with solder during the soldering process and is otherwise covered to the outside by the overlapping edge regions 4, 5 of the base, so that there is a seal both to the outside and between the two adjacent chambers 10 and 11.
  • FIGS. 4 and 4a show a further embodiment of the invention with a modified partition shape in a representation analogous to FIGS. 2 and 2a.
  • Fig. 4 shows in a cross section a cover 20 of a manifold, not shown completely.
  • the cover 20 has an approximately semi-oval cross-section and is delimited at the top by edge regions 21, 22 (in the drawing).
  • edge regions 21, 22 in the drawing.
  • groove-like incisions 24, 25 are arranged at the points where a partition is provided, which are shown in broken lines in FIG. 4 - only the front incision 24 appears in FIG. 4a
  • Cover 20 is a partition 23 is used, which abuts with its entire circumference on the inner surface of the cover 20 with its lower half 23a.
  • the upper half 23b of the partition 23 has a diameter Db which is twice the wall thickness d than the lower half 23a with 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 incisions 24, 25 and thus form a double joint connection between the partition 23 and the cover 20; this is sufficient for positioning the partition 23.
  • the partition 23 has no flag that is inserted through a slot in the lid. Rather, the cover 20 has a continuous cross-section, that is to say that it is not interrupted by slots. This eliminates the need to push the partition through the cover and the subsequent soldering, ie the risk of leakage is further reduced.
  • the partition 23 is installed in such a way that its smaller half 23a is inserted into the cover 20a, so that the partition 23 forms a common stop surface B1 with the cover 20. So that there is definitely a stop or contact in the area B1, a gap s is left between the edge areas 21, 22 and the shoulders 23c, 23d. The shoulders 23c, 23d thus fit into the groove-like cutouts 24, 25 of the cover 20 like a feather key / groove connection.
  • a bottom (not shown here) is pushed over the cover 20 with the partition 23 inserted — analogous to the exemplary embodiment according to FIG. 1, so that a stop surface B2 is formed between the partition 23 and the bottom not shown.

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)
  • Air-Conditioning For Vehicles (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Coating With Molten Metal (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

Gelöteter Wärmeübertrager Soldered heat exchanger
Die Erfindung betrifft einen gelöteten Wärmeübertrager, insbesondere einen gelöteten Kondensator für eine Kraftfahrzeug-Klimaanlage nach dem Oberbegriff der Patentansprüche 1und 2 - bekannt durch die DE-A 43 39 952.The invention relates to a soldered heat exchanger, in particular a soldered condenser for a motor vehicle air conditioning system according to the preamble of claims 1 and 2 - known from DE-A 43 39 952.
Der bekannte 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.The known heat exchanger is a so-called flat tube condenser, which consists of flat tubes, corrugated fins arranged between them and two-part header tubes with partitions. All parts, which consist of an aluminum alloy, are first mechanically joined and then soldered in a soldering furnace. The partitions are inserted as separate individual parts in the header pipes and positioned there. The collecting pipes consist of a bowl-shaped bottom, which receives the pipes, and a likewise bowl-shaped cover, which has slots for receiving and positioning the partitions. Tolerance problems can arise when joining these three parts, ie the floor, the partition walls and the cover, because the partition walls are in one place on the floor due to their geometric design, but in two places on the cover - this can lead to a static Overdetermination of these three parts and consequently 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 partition walls in the collecting tube of the condenser mentioned at the outset in such a way that correct positioning of the partition wall in the collecting tube and leak-free soldering are ensured.
Die Lösung dieser Aufgabe erfolgt für den eingangs genannten Wärmeübertrager durch die Merkmale der Patentansprüche 1 und 2. 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.This object is achieved for the heat exchanger mentioned at the outset by the features of claims 1 and 2. Accordingly, the cover of the collecting tube has cutouts in the region of the partition walls at its edges, into which the partition walls engage, ie each partition wall forms two with the cover (Claim 1) or three places (Claim 2) a joint connection: Due to the double joint connection according to claim 1 between the shoulders of the partition and the cutouts in the cover, the partition is already sufficiently fixed - a so-called flag as in the prior art can be omitted , In the secondary solution according to claim 2, the partition - as is known - has a flag which is inserted into a corresponding slot in the cover. The heels of the partition insert into the peripheral cut-outs of the lid, so that a "three-point bearing" is given for the separation wall after joining is. 'The partition wall may thus not tilt, but is exact, ie at an angle of 90 ° to the longitudinal axis The dimensions of the partition and the cut-outs in the cover are selected so that the partition rests on the inside of the cover, but not with its shoulders in the cut-outs. After the partition and cover have been joined, the bottom is placed over the cover with the pre-assembled Partitions are pushed as far as they will go to the partition walls and - as is known - secured with grain punches. The inner surface of the floor then only bears against the partition at one point. Overall, this results in a statically determined system of cover, partition wall and floor, ie there are clear contact surfaces with minimal gaps, so that leak-free soldering can be achieved.
In weiterer Ausgestaltung der Erfindung ist zwischen den Absätzen der Trennwand und der Grundfläche der randseitigen Ausschnitte ein gewisses Spiel vorgesehen. 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.In a further embodiment of the invention, a certain amount of play is provided between the shoulders of the partition and the base of the cutouts on the edge. This ensures that there is only one contact surface between the partition on the one hand and the cover and base on the other. The gap defined by tolerance is filled with solder material during the soldering process and thus leads to tight soldering.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher beschrieben. Es zeigenExemplary embodiments of the invention are shown in the drawing and are described in more detail below. Show it
Fig. 1 einen Querschnitt durch ein Sammelrohr mit Trennwand,1 shows a cross section through a manifold with a partition,
Fig. 1 a eine Seitenansicht von Fig. 2,1a is a side view of Fig. 2,
Fig. 2 einen Querschnitt durch den Deckel und die Trennwand desFig. 2 shows a cross section through the lid and the partition of the
Sammlerohrescollectors ear
Fig. 2a eine Seitenansicht von Fig. 2,2a is a side view of FIG. 2,
Fig. 3 einen Querschnitt durch den Deckel des Sammelrohres in der Ebene der Trennwand,3 shows a cross section through the cover of the collecting pipe in the plane of the partition,
Fig. 3a eine Seitenansicht von Fig. 3 undFig. 3a is a side view of Fig. 3 and
Fig. 4, 4a eine abgewandelte Ausführungsform mit einer Trennwand ohne4, 4a a modified embodiment with a partition without
„Fahne"."Banner".
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. 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. 1 shows a cross section through a manifold 1, the cross section of which is delimited by a shell-shaped, semi-cylindrical bottom 2 and a likewise shell-shaped, semi-cylindrical cover 3, which is designed with regard to its external dimension so that it can be inserted into the bottom 2. The base 2 has two edge regions 4, 5 which run in the longitudinal direction of the tube (perpendicular to the plane of the drawing) and which overlap with edge regions 6, 7 of the cover 3. The cross section of the collecting tube 1 thus formed by the base 2 and cover 3 is filled by a partition 8, which in its area facing the cover 3 has a flag 8a which penetrates a recess 3a (see FIG. 3) of the cover 3 to the outside , The partition 8 also has two shoulders 8b, 8c in the region of the edges 6, 7 of the cover 3. The base 2 receives flat tubes 9 in a manner not shown in detail (e.g. in passages) which, together with corrugated fins (not shown), form the network of a condenser for a motor vehicle air conditioning system. 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.3 and 3a show the cover 3 as an individual part, the slot 3a for receiving the flags 8a (not shown here) and the two cutouts 3b, 3c in the edges 6, 7 of the base 3 being recognizable on the one hand. The cutouts 3b, 3c are U-shaped, i. H. open to the outside, designed and have two parallel side surfaces 13, 14 and a base surface 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 Dreipύnktlagerung 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 collecting tube 1 is carried out as follows: first, the partition walls 8 are inserted into the cover 3, first with their flag 8a inserted into the slots 3a. After a short insertion path, the shoulders 8b, 8c engage in the groove-shaped incisions 3b, 3c, ie the partition sections 8b, 8c slide into a groove like a feather key. The insertion movement of the partition 8 is ended when the stop A1 is reached inside the cover. In this position there is still some air between the shoulders 8b, 8c and the base 15 of the incisions 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. The bottom 2 is then pushed onto the lid 3 (or the lid 3 with the partition 8 is pushed into the bottom 2). This insertion movement takes place until the partition 8 touches the stop A2 in the interior of the cover 2. This ensures that the partition 8 has only one stop, namely A2 with the bottom 2. It follows from this that the partition 8 can lie completely against the inner wall of the cover 2 and also against the inner wall of the bottom 3. In addition, the partition 8 is also aligned perpendicular to the longitudinal axis by the three-point bearing mentioned above, ie the peripheral surface of the partition 8 runs parallel to the inner wall of the lid 3 and bottom 2. These are the prerequisites for perfect soldering. The gap s existing between paragraphs 8b, 8c and the base line 15 of the incisions 3b, 3c is filled with solder during the soldering process and is otherwise covered to the outside by the overlapping edge regions 4, 5 of the base, so that there is a seal both to the outside and between the two adjacent chambers 10 and 11.
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 Kömerschläge gesichert werden. Danach wird der gesamte Kondensator im Ofen gelötet.After the partition walls 8, cover 3 and base 2 have been joined, the overlapping edge regions 4/6 and 5/7 can be secured by means of gravel blows, as is known from the prior art mentioned at the outset. Then the entire capacitor is soldered in the furnace.
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 sind - in 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. 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.4 and 4a show a further embodiment of the invention with a modified partition shape in a representation analogous to FIGS. 2 and 2a. Fig. 4 shows in a cross section a cover 20 of a manifold, not shown completely. The cover 20 has an approximately semi-oval cross-section and is delimited at the top by edge regions 21, 22 (in the drawing). In these edge regions 21, 22, groove-like incisions 24, 25 are arranged at the points where a partition is provided, which are shown in broken lines in FIG. 4 - only the front incision 24 appears in FIG. 4a Cover 20 is a partition 23 is used, which abuts with its entire circumference on the inner surface of the cover 20 with its lower half 23a. The upper half 23b of the partition 23 has a diameter Db which is twice the wall thickness d than the lower half 23a with 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 incisions 24, 25 and thus form a double joint connection between the partition 23 and the cover 20; this is sufficient for positioning the partition 23. In contrast to the previous embodiment, shown in Figures 1 to 3, the partition 23 has no flag that is inserted through a slot in the lid. Rather, the cover 20 has a continuous cross-section, that is to say that it is not interrupted by slots. This eliminates the need to push the partition through the cover and the subsequent soldering, ie the risk of leakage is further reduced. The partition 23 is installed in such a way that its smaller half 23a is inserted into the cover 20a, so that the partition 23 forms a common stop surface B1 with the cover 20. So that there is definitely a stop or contact in the area B1, a gap s is left between the edge areas 21, 22 and the shoulders 23c, 23d. The shoulders 23c, 23d thus fit into the groove-like cutouts 24, 25 of the cover 20 like a feather key / groove connection.
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 collecting tube, a bottom (not shown here) is pushed over the cover 20 with the partition 23 inserted — analogous to the exemplary embodiment according to FIG. 1, so that a stop surface B2 is formed between the partition 23 and the bottom not shown. For the assembly of the entire collecting pipe, consisting of cover 20, partition 23 and floor, not shown, this results in defined stop ratios, ie, only two stop surfaces B1, B2. H. a leak-free soldering of the partition 23 in the header.

Claims

Patentansprüche claims
1. Gelöteter Wärmeübertrager, insbesondere Kältemittel-Kondensator mit einem Wärmeübertragernetz aus Rohren und Rippen sowie mit mindestens einem Sammelrohr, welches aus einem Boden (2) und einem Deckel (3, 20) sowie Trennwänden (8, 23) besteht, wobei Boden (2) und Deckel (3, 20) sich längsseitig überlappende Ränder (4, 5; 6, 7; 21 , 22) aufweisen, wobei der Boden (2) die Enden der Rohre (9) aufnimmt und die Trennwände (8, 23) einen ersten und zweiten Absatz (8b, 8c; 23c, 23d) aufweisen, der auf den Rändern (.6, 7; 21 , 22) des Deckels (3, 20) aufliegt, dadurch gekennzeichnet, dass die beiden Ränder (6, 7; 21, 22) des Deckels (3, 20) im Bereich der Trennwände (8, 23) nutartige Ausnehmungen (3b, 3c; 24, 25) aufweisen, in. welche die Absätze (8b, 8c; 23c, 23d) der Trennwände (8, 23) eingreifen.1.Soldered heat exchanger, in particular a refrigerant condenser with a heat exchanger network consisting of tubes and fins and with at least one header tube, which comprises a base (2) and a cover (3, 20) and partitions (8, 23), the base (2 ) and cover (3, 20) overlapping edges (4, 5; 6, 7; 21, 22) on the longitudinal side, the bottom (2) receiving the ends of the tubes (9) and the partitions (8, 23) one have first and second paragraph (8b, 8c; 23c, 23d), which rests on the edges (.6, 7; 21, 22) of the cover (3, 20), characterized in that the two edges (6, 7; 21, 22) of the cover (3, 20) in the region of the partition walls (8, 23) have groove-like recesses (3b, 3c; 24, 25) into which the shoulders (8b, 8c; 23c, 23d) of the partition walls ( 8, 23) intervene.
2. Gelöteter Wärmeübertrager, insbesondere Kältemittel-Kondensator mit einem Wärmeübertragernetz aus Rohren und Rippen sowie mit mindestens einem Sammelrohr, welches aus einem Boden (2) und einem Deckel (3) sowie Trennwänden (8) besteht, wobei Boden (2) und Deckel (3) sich längsseitig überlappende Ränder (4, 5; 6, 7) aufweisen, wobei der Boden (2) die Enden der Rohre (9) aufnimmt und die Trennwände (8) jeweils eine Fahne (8a), die einen Schlitz (3a) im Deckel (3) durchdringt, sowie einen ersten und zweiten Absatz (8b, 8c) aufweisen, der auf den Rändern (6, 7) des Deckels (3) aufliegt, dadurch gekennzeichnet, dass die beiden Ränder (6, 7) des Deckels (3) im Bereich der Trennwände (8) nutartige Ausnehmungen (3b, 3c) aufweisen, in welche die Absätze (8b, 8c) der Trennwände (8) eingreifen.2.Soldered heat exchanger, in particular refrigerant condenser with a heat exchanger network consisting of tubes and fins and with at least one header tube, which consists of a base (2) and a cover (3) and partitions (8), the base (2) and cover ( 3) have overlapping edges (4, 5; 6, 7) on the longitudinal side, the base (2) receiving the ends of the tubes (9) and the dividing walls (8) each having a flag (8a) which has a slot (3a) penetrates in the lid (3), and have a first and second shoulder (8b, 8c) which rests on the edges (6, 7) of the lid (3), characterized in that the two edges (6, 7) of the lid (3) in the area of the partitions (8) have groove-like recesses (3b, 3c) into which the shoulders (8b, 8c) of the partitions (8) engage.
3. Wärmeübertrager nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Aussparungen (3b, 3c; 24, 25) zwei parallele Seitenflächen (13, 14) sowie eine dazu senkrecht angeordnete Grundfläche (15) aufweisen und dass der Abstand der Seitenflächen (13, 14) der Breite (b) der Trennwand (8) entspricht.3. Heat exchanger according to claim 1 or 2, characterized in that the recesses (3b, 3c; 24, 25) two parallel side surfaces (13, 14) and one have a base surface (15) arranged perpendicular thereto and that the spacing of the side surfaces (13, 14) corresponds to the width (b) of the partition (8).
4. Wärmeübertrager nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass die Trennwände (8, 23) nach dem Fügen von Boden (2) und Deckel (3, 20) jeweils eine erste Anlagefläche (A1. B1) mit dem Deckel (3, 20) und eine zweite Anlagefläche (A2, B2) mit dem Boden (2) bilden, während zwischen den Absätzen (8b, 8c; 23c, 23d) der Trennwände (8, 23) und der Grundfläche (15) der Aussparung (3b, 3c; 24, 25) ein Spalt (s) belassen ist. 4. Heat exchanger according to claim 1, 2 or 3, characterized in that the partitions (8, 23) after joining the bottom (2) and lid (3, 20) each have a first contact surface (A1. B1) with the lid ( 3, 20) and a second contact surface (A2, B2) with the bottom (2), while between the shoulders (8b, 8c; 23c, 23d) of the partition walls (8, 23) and the base surface (15) of the recess ( 3b, 3c; 24, 25) a gap (s) is left.
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
DE10212306A DE10212306A1 (en) 2002-03-20 2002-03-20 Brazed heat exchanger
DE10212306 2002-03-20
PCT/EP2003/002041 WO2003078912A1 (en) 2002-03-20 2003-02-27 Soldered heat exchanger

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

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US (1) US7059398B2 (en)
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JP (1) JP2005521020A (en)
CN (1) CN1643329A (en)
AT (1) ATE373806T1 (en)
AU (1) AU2003223950A1 (en)
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WO (1) WO2003078912A1 (en)

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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
JP2015194327A (en) * 2014-03-20 2015-11-05 カルソニックカンセイ株式会社 heat exchanger
JP2015194326A (en) * 2014-03-20 2015-11-05 カルソニックカンセイ株式会社 heat exchanger

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ATE373806T1 (en) 2007-10-15
AU2003223950A1 (en) 2003-09-29
US7059398B2 (en) 2006-06-13
EP1492991B1 (en) 2007-09-19
US20050126771A1 (en) 2005-06-16
JP2005521020A (en) 2005-07-14
WO2003078912A1 (en) 2003-09-25
CN1643329A (en) 2005-07-20
DE50308220D1 (en) 2007-10-31
DE10212306A1 (en) 2003-10-02

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