EP1411310B1 - Heat exhanger with serpentine structure - Google Patents
Heat exhanger with serpentine structure Download PDFInfo
- Publication number
- EP1411310B1 EP1411310B1 EP03020914A EP03020914A EP1411310B1 EP 1411310 B1 EP1411310 B1 EP 1411310B1 EP 03020914 A EP03020914 A EP 03020914A EP 03020914 A EP03020914 A EP 03020914A EP 1411310 B1 EP1411310 B1 EP 1411310B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- component
- heat exchanger
- cooling line
- refrigerant
- 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
Links
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 title claims description 6
- 238000001816 cooling Methods 0.000 claims description 111
- 239000003507 refrigerant Substances 0.000 claims description 35
- 238000005192 partition Methods 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 3
- 230000001976 improved effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- F28D1/047—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 bent, e.g. in a serpentine or zig-zag
- F28D1/0477—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
- F28D1/0478—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
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- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
Definitions
- the invention relates to a heat exchanger in serpentine construction with the features of the preamble of claim 1.
- This heat exchanger is off DE 100 49 256 A1 known.
- special deflection spaces are provided for forwarding the inner heat transfer medium (refrigerant) from a rear cooling line on the front cooling line (or vice versa), which are designed as individual tubes in which the ends of two constructed from serpentine curved multi-chamber flat tubes cooling strands or sections lead.
- the cooling air flows through a plurality of cooling strands arranged one behind the other in the direction of the same.
- This design is to be further improved because the provision of the deflection spaces seems to be problematic both logistically and because of the dense soldering of the deflection spaces.
- the object of the invention is therefore in the provision of an improved heat exchanger, which seen in the cooling air flow direction, although to have multiple strands but no separate deflection spaces needed.
- This object is achieved according to the invention in the heat exchanger according to the preamble by the characterizing features of claim 1. Due to the fact that the components forming the distributor channel and / or the collecting channel extend approximately over all cooling strands, wherein first and second deflection chambers are integrated in the components, no separate deflection spaces are required, which leads to a structural simplification of the heat exchanger. It is understood that it depends on the number of cooling strands, whether in both components a deflection space is present or not. Even with more than three Chillers is the inventive idea of integrating the deflection in the components applicable.
- a heat exchanger is also provided, which has a higher efficiency of heat exchange, because he works in cross-countercurrent principle.
- the heat exchanger has at least three cooling strands, which are reduced in the tube cross-section, the cooling air flows through the first cooling line, the cross-section is smallest, then meets the medium-sized cooling line to finally flow through the largest cooling line, and that the refrigerant flows first through the largest cooling line, then through the middle and finally through the smallest. (Cross-countercurrent) This provides a highly efficient condenser for the air conditioner, especially in a motor vehicle.
- Another embodiment has a cooling line with a larger cross-section, in which the refrigerant enters first, and it has two following cooling strands reduced but the same cross section. There may also be more than two following cooling strands, of which z. B. two reduced compared to the first cooling line but have the same size cross-section and wherein further following cooling strands over the two equal cooling strands are again reduced in cross section.
- the inventive idea is further, as can be seen, equally successfully applied to evaporators, although it has been described above using the example of a capacitor.
- the distribution channel-containing component has a peripheral wall and a longitudinal partition, which extends approximately over the depth of two adjacent cooling strands and a transverse partition, wherein the longitudinal partition wall and the transverse partition part of the cross section of the component, wherein in this separated part, the second deflection of the refrigerant from a cooling line into the next cooling line, and further has an inlet channel (distribution channel) which extends along the longitudinal partition wall and the peripheral wall and leads to the inlet side Mehrkanalflachrohrende.
- the collecting channel-containing component has a peripheral wall and a transverse partition, wherein the transverse partition wall two adjacent cooling strands of the hydraulically disconnects the third cooling line.
- the first deflection of the refrigerant takes place from one cooling line into the next cooling line.
- the outlet-side Mehrkanalflachrohrende the third (smallest) cooling line opens in the remaining part of the component, namely in the collecting channel.
- the cooling fins are preferably designed continuously over all cooling cords, which is favorable from the point of view of manufacturability.
- the components are preferably generally tubular in shape and each receive the entire cross-section of a single multi-channel flat tube or multiple multi-channel flat tubes which are / are soldered therein tightly and firmly.
- a longitudinal slot in the component is present in a conventional manner, in which one end of the / multi-channel flat tubes / s is inserted / are.
- a refrigerant inlet is disposed on an end face of the manifold-containing component seated at the distal end of the component from the entrance-side multi-channel flat tube end.
- a refrigerant outlet is arranged on an end face of the component containing the collecting channel, which adjoins where the outlet-side Mehrkanalflachrohrende opens in the component.
- the transverse partition in the distributor channel-containing component is arranged where the cooling line with the largest cross-section adjacent to the adjacent cooling line, or where the Mehrkanalflachrohr is hydraulically separated between the largest cooling line and the adjacent cooling line.
- FIG. 7 shows a basic cross section through a single multi-channel flat tube 1 .
- This multi-channel flat tube 1 includes all (in the embodiment, three) cooling strands 4 , 5 , 6 in itself, which is illustrated by the corresponding reference numerals on the cross section.
- the reference numerals 22 and 24 denote the partial transverse wall 22 in the component 7 and the transverse wall 24 in the component 9 , which can be seen in Fig. 6.
- the reference numerals 22 and 24 have been registered, in order to show clearly that the transverse walls 22 and 24 provide there for the hydraulic separation between the cooling strands 4 , 5 , 6 , because the Transverse walls 22 , 24 are arranged at the points in the components 7 and 9 , respectively, which correspond to the points marked 22 and 24 in the multi-channel flat tube 1 .
- the multi-channel flat tube 1 itself can be formed identically with channel walls 28 , as shown, over all cooling strands 4 , 5 , 6 . Furthermore, it can clearly be seen that the pipe cross section of the cooling line 6 is greater than the same cross section of the cooling strands 5 and 4 .
- the multi-channel flat tube 1 has only two channel walls 28 , which correspond to the positions of the partitions 22 and 24 in the components 7 and 9, respectively.
- Another embodiment not shown has more than two but significantly fewer channel walls 28 than shown in Fig. 7, wherein the distances between the channel walls 28 and thus the cross sections of the individual channels, not the same size need.
- the channel walls 28 give the multi-channel flat tube 1 a greater stability against internal pressure.
- the components 7 and 9 are generally tubular, preferably circular in cross-section, with a peripheral wall 20 and 23. They extend approximately over the depth (Z direction, Fig. 1 and 6) of all cooling strands 4, 5, 6.
- the components 7 and 9 are equipped with a longitudinal slot 30 (FIG.
- the arrangement of the partitions 21 , 22 , 24 is best shown in FIG. 6.
- the partial transverse wall 22 in the component 7 causes an inlet-side Mehrkanalflachrohrende 11 is hydraulically divided from the remaining cross-section of the Mehrkanalflachrohres 1 , which is to be understood that within the component 7 no hydraulic connection to the remaining cross-section of Mehrkanalflachrohrendes 1 .
- the remaining cross section of the multi-channel flat tube end 1 is assigned to the end of the cooling strand 5 and the beginning of the cooling strand 4 .
- the mentioned end and the mentioned beginning open in the second deflection space 13.2 , which is formed by the longitudinal partition wall 21 and the transverse partition wall 22 in the component 7 .
- the distribution channel 8 is connected on one side via the passage 34 between the longitudinal wall 21 and the peripheral wall 20 with the inlet 25 and on the other side with the inlet-side Mehrkanalflachrohrende 11th
- the component 9 is somewhat simpler compared to the component 7 , because it has only the transverse partition wall 24 which extends over the entire cross section of the component 9 .
- two separate compartments are formed in the component 9 , of which the larger compartment is the first deflection 13.1 , in which the cooling strand 6 associated end of the Mehrkanalflachrohres 1 and the cooling line 5 associated with the beginning of Mehrkanalflachrohres 1 open.
- the second department is the collecting space 10 , in which the outlet side Mehrkanalflachrohrende 12 associated with the cooling line 4 opens.
- 4, 5 and 9 show, as already mentioned, the heat exchanger, consisting of three individual, approximately rectangular in cross section Mehrkanalflachrohren.
- the multi-channel flat tube with the reference numeral 1.6 forms the cooling line 6 , with 1.5 the cooling line 5 and 1.4 consequently the cooling strand 4th
- the multi-channel flat tubes 1.6 , 1.5 and 1.4 have been bent in an identical manner serpentine, and they are soldered together at their narrow sides 32 , which is shown only in principle. (Fig. 9)
- the connected narrow sides 32 are located at the positions corresponding to the position of the partition walls 22 and 24, respectively.
Description
Die Erfindung betrifft einen Wärmeübertrager in Serpentinenbauweise mit den Merkmalen aus dem Oberbegriff des Anspruchs 1.
Dieser Wärmeübertrager ist aus
Ein weiterer Wärmeübertrager ist aus
Die aus den weiteren japanischen Veröffentlichungen Nr.
Die Aufgabe der Erfindung besteht demzufolge in der Bereitstellung eines verbesserten Wärmeübertragers, der in Kühlluftströmungsrichtung gesehen, zwar mehrere Stränge aufweisen soll aber keine separaten Umlenkräume benötigt.
Diese Aufgabe wird bei dem Wärmeübertrager gemäß Oberbegriff erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.
Dadurch, dass sich die den Verteilerkanal und/oder den Sammelkanal bildenden Bauteile etwa über sämtliche Kühlstränge erstrecken, wobei erste bzw. zweite Umlenkräume in den Bauteilen integriert sind, sind keine separaten Umlenkräume erforderlich, was zu einer baulichen Vereinfachung des Wärmeübertragers führt. Es versteht sich, dass es von der Anzahl der Kühlstränge abhängig ist, ob in beiden Bauteilen ein Umlenkraum vorhanden ist oder nicht. Auch bei mehr als drei Kühlsträngen ist die erfinderische Idee der Integration der Umlenkräume in die Bauteile anwendbar.
Weil zusätzlich gemäß Anspruch 2 vorgesehen ist, dass die Kühlluftströmungsrichtung und die Strömungsrichtung des Kältemittels so gewählt sind, dass die Wärmeübertragung im Kreuzgegenstrom erfolgt, wird außerdem ein Wärmeübertrager geschaffen, der eine höhere Effizienz des Wärmeaustausches aufweist, weil er im Kreuzgegenstromprinzip arbeitet. Der Wärmeübertrager weist mindestens drei Kühlstränge auf, die im Rohrquerschnitt reduziert sind, wobei die Kühlluft zuerst durch den Kühlstrang strömt, dessen Querschnitt am kleinsten ist, dann auf den Kühlstrang mittlerer Größe trifft, um schließlich durch den größten Kühlstrang zu strömen, und dass das Kältemittel zuerst durch den größten Kühlstrang strömt, dann durch den mittleren und schließlich durch den kleinsten. (Kreuzgegenstrom) Dadurch wird ein hocheffizient arbeitender Kondensator für die Klimaanlage, insbesondere in einem Kraftfahrzeug zur Verfügung gestellt. Ein anderes Ausführungsbeispiel weist einen Kühlstrang mit größerem Querschnitt auf, in den das Kältemittel zuerst eintritt, und es besitzt zwei folgende Kühlstränge reduzierten aber gleich großen Querschnitts. Es können auch mehr als zwei folgende Kühlstränge vorhanden sein, wovon z. B. zwei einen gegenüber dem ersten Kühlstrang reduzierten aber gleich großen Querschnitt aufweisen und wobei weiter folgende Kühlstränge gegenüber den zwei gleich großen Kühlsträngen nochmals im Querschnitt reduziert sind. Die erfinderische Idee ist ferner, wie leicht zu sehen ist, mit gleichem Erfolg bei Verdampfern anzuwenden, obwohl sie vorstehend am Beispiel eines Kondensators beschrieben wurde.
Das den Verteilerkanal beinhaltende Bauteil weist eine Umfangswand und eine Längstrennwand auf, die etwa über die Tiefe zweier benachbarter Kühlstränge reicht und eine Quertrennwand, wobei die Längstrennwand und die Quertrennwand einen Teil des Querschnitts des Bauteils abtrennen, wobei in diesem abgetrennten Teil die zweite Umlenkung des Kältemittels von einem Kühlstrang in den nächsten Kühlstrang erfolgt, und weiter weist es einen Eintrittskanal (Verteilerkanal) auf, der sich entlang der Längstrennwand und der Umfangswand erstreckt und zum eintrittsseitigen Mehrkanalflachrohrende führt.
Das den Sammelkanal beinhaltende Bauteil besitzt eine Umfangswand und eine Quertrennwand, wobei die Quertrennwand zwei benachbarte Kühlstränge von dem dritten Kühlstrang hydraulisch abtrennt. In dem Teil des Bauteils der zwei Kühlstränge umfaßt, findet die erste Umlenkung des Kältemittels von einem Kühlstrang in den nächsten Kühlstrang statt. Das austrittsseitige Mehrkanalflachrohrende des dritten (kleinsten) Kühlstrangs mündet im verbleibenden Teil des Bauteils, nämlich im Sammelkanal.The invention relates to a heat exchanger in serpentine construction with the features of the preamble of
This heat exchanger is off
Another heat exchanger is out
From the other Japanese publications no.
The object of the invention is therefore in the provision of an improved heat exchanger, which seen in the cooling air flow direction, although to have multiple strands but no separate deflection spaces needed.
This object is achieved according to the invention in the heat exchanger according to the preamble by the characterizing features of
Due to the fact that the components forming the distributor channel and / or the collecting channel extend approximately over all cooling strands, wherein first and second deflection chambers are integrated in the components, no separate deflection spaces are required, which leads to a structural simplification of the heat exchanger. It is understood that it depends on the number of cooling strands, whether in both components a deflection space is present or not. Even with more than three Chillers is the inventive idea of integrating the deflection in the components applicable.
In addition, because it is provided according to claim 2, that the cooling air flow direction and the flow direction of the refrigerant are chosen so that the heat transfer occurs in cross-countercurrent, a heat exchanger is also provided, which has a higher efficiency of heat exchange, because he works in cross-countercurrent principle. The heat exchanger has at least three cooling strands, which are reduced in the tube cross-section, the cooling air flows through the first cooling line, the cross-section is smallest, then meets the medium-sized cooling line to finally flow through the largest cooling line, and that the refrigerant flows first through the largest cooling line, then through the middle and finally through the smallest. (Cross-countercurrent) This provides a highly efficient condenser for the air conditioner, especially in a motor vehicle. Another embodiment has a cooling line with a larger cross-section, in which the refrigerant enters first, and it has two following cooling strands reduced but the same cross section. There may also be more than two following cooling strands, of which z. B. two reduced compared to the first cooling line but have the same size cross-section and wherein further following cooling strands over the two equal cooling strands are again reduced in cross section. The inventive idea is further, as can be seen, equally successfully applied to evaporators, although it has been described above using the example of a capacitor.
The distribution channel-containing component has a peripheral wall and a longitudinal partition, which extends approximately over the depth of two adjacent cooling strands and a transverse partition, wherein the longitudinal partition wall and the transverse partition part of the cross section of the component, wherein in this separated part, the second deflection of the refrigerant from a cooling line into the next cooling line, and further has an inlet channel (distribution channel) which extends along the longitudinal partition wall and the peripheral wall and leads to the inlet side Mehrkanalflachrohrende.
The collecting channel-containing component has a peripheral wall and a transverse partition, wherein the transverse partition wall two adjacent cooling strands of the hydraulically disconnects the third cooling line. In the part of the component comprising two cooling lines, the first deflection of the refrigerant takes place from one cooling line into the next cooling line. The outlet-side Mehrkanalflachrohrende the third (smallest) cooling line opens in the remaining part of the component, namely in the collecting channel.
Die Kühlrippen sind vorzugsweise durchgehend über alle Kühlstränge gestaltet, was aus Sicht der Herstellbarkeit günstig ist.The cooling fins are preferably designed continuously over all cooling cords, which is favorable from the point of view of manufacturability.
Die Bauteile sind vorzugsweise im allgemeinen rohrförmig ausgebildet und nehmen jeweils den gesamten Querschnitt eines einzigen Mehrkanalflachrohres oder mehrerer Mehrkanalflachrohre auf, das/die darin dicht und fest verlötet ist/sind. Dazu ist in an sich bekannter Weise ein Längsschlitz im Bauteil vorhanden, in dem ein Ende der/des Mehrkanalflachrohre/s eingesteckt ist/sind.The components are preferably generally tubular in shape and each receive the entire cross-section of a single multi-channel flat tube or multiple multi-channel flat tubes which are / are soldered therein tightly and firmly. For this purpose, a longitudinal slot in the component is present in a conventional manner, in which one end of the / multi-channel flat tubes / s is inserted / are.
Ein Kältemitteleinlass ist an einer Stirnseite des den Verteilerkanal beinhaltenden Bauteils angeordnet, der am vom eintrittsseitigen Mehrkanalflachrohrende entfernten Ende des Bauteils sitzt.A refrigerant inlet is disposed on an end face of the manifold-containing component seated at the distal end of the component from the entrance-side multi-channel flat tube end.
Ein Kältemittelauslass ist an einer Stirnseite des den Sammelkanal beinhaltenden Bauteils angeordnet, der dort anschließt, wo das austrittsseitige Mehrkanalflachrohrende im Bauteil mündet.A refrigerant outlet is arranged on an end face of the component containing the collecting channel, which adjoins where the outlet-side Mehrkanalflachrohrende opens in the component.
Die Quertrennwand im den Verteilerkanal beinhaltenden Bauteil ist dort angeordnet, wo der Kühlstrang mit dem größten Querschnitt an den benachbarten Kühlstrang angrenzt, bzw. wo das Mehrkanalflachrohr zwischen dem größten Kühlstrang und dem benachbarten Kühlstrang hydraulisch getrennt ist.The transverse partition in the distributor channel-containing component is arranged where the cooling line with the largest cross-section adjacent to the adjacent cooling line, or where the Mehrkanalflachrohr is hydraulically separated between the largest cooling line and the adjacent cooling line.
Weitere Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung, anhand der beiliegenden Zeichnungen.Further features and advantages will become apparent from the following description, with reference to the accompanying drawings.
Die beigefügten Figuren zeigen Folgendes:
- Fig. 1 Vorderansicht auf den Wärmeübertrager;
- Fig. 2 Draufsicht, erste Ausführung;
- Fig. 3 Seitenansicht, erste Ausführung;
- Fig. 4 Perspektivansicht einer zweiten Ausführung;
- Fig. 5 Seitenansicht der zweiten Ausführung;
- Fig. 6 Gestaltung der Bauteile im Prinzip;
- Fig. 7 Schnitt durch das ein Mehrkammerflachrohr;
- Fig. 8 Perspektivansicht der ersten Ausführung
- Fig. 9 Schnitt durch drei Mehrkammerrohre
Die Fig. 3 macht deutlich, wie der Wärmeaustausch im Kreuzgegenstrom realisiert ist. Die Kühlluft strömt dort, wie der Pfeil Air anzeigt, allgemein von rechts nach links durch die
- Fig. 1 front view of the heat exchanger;
- Fig. 2 top view, first embodiment;
- Fig. 3 side view, first embodiment;
- Fig. 4 perspective view of a second embodiment;
- Fig. 5 side view of the second embodiment;
- Fig. 6 design of the components in principle;
- 7 shows a section through a multi-chamber flat tube;
- Fig. 8 perspective view of the first embodiment
- Fig. 9 section through three multi-chamber pipes
Fig. 3 makes it clear how the heat exchange is realized in cross-counterflow. The cooling air flows there, as indicated by the arrow Air , generally from right to left through the cooling
In Fig. 7 ist ein prinzipieller Querschnitt durch ein einziges Mehrkanalflachrohr 1 zu sehen. Dieses Mehrkanalflachrohr 1 schließt alle (im Ausführungsbeispiel drei) Kühlstränge 4, 5, 6 in sich ein, was durch die entsprechenden Bezugszeichen an dem Querschnitt verdeutlicht ist. Die Bezugszeichen 22 und 24 bezeichnen die Teilquerwand 22 im Bauteil 7 bzw. die Querwand 24 im Bauteil 9, was in Fig. 6 zu sehen ist. In dem erwähnten Querschnitt des Mehrkanalflachrohres 1 in Fig. 7, wurden die Bezugszeichen 22 und 24 eingetragen, um damit ganz klar zu zeigen, dass die Querwände 22 und 24 dort für die hydraulische Trennung zwischen den Kühlsträngen 4, 5, 6 sorgen, denn die Querwände 22, 24 sind an den Stellen in den Bauteilen 7 bzw. 9 angeordnet, die den im Mehrkanalflachrohr 1 mit den Bezugszeichen 22 bzw. 24 markierten Stellen entsprechen. Das Mehrkanalflachrohr 1 selbst kann über alle Kühlstränge 4, 5, 6 identisch mit Kanalwänden 28, wie gezeigt, ausgebildet sein. Ferner ist deutlich zu sehen, dass der Rohrquerschnitt des Kühlstrangs 6 größer ist als derselbe Querschnitt der Kühlstränge 5 bzw. 4. Bei einem nicht gezeigten Ausführungsbeispiel besitzt das Mehrkanalflachrohr 1 allerdings nur zwei Kanalwände 28, die den Positionen der Trennwände 22 und 24 in den Bauteilen 7 bzw. 9 entsprechen. Ein anderes nicht gezeigtes Ausführungsbeispiel hat mehr als zwei aber deutlich weniger Kanalwände 28 als in Fig. 7 gezeigt, wobei die Abstände zwischen den Kanalwänden 28 und damit die Querschnitte der einzelnen Kanäle, nicht die gleiche Größe haben müssen. Die Kanalwände 28 geben dem Mehrkanalflachrohr 1 eine größere Stabilität gegen Innendruck.
Die Bauteile 7 und 9 sind allgemein rohrförmig, bevorzugt kreisförmig im Querschnitt, mit einer Umfangswand 20 bzw. 23. Sie erstrecken sich etwa über die Tiefe (Z-Richtung, Fig. 1 und 6) sämtlicher Kühlstränge 4, 5, 6. Die Bauteile 7 und 9 sind mit einem ebenfalls etwa über die gesamte Tiefe sämtlicher Kühlstränge 4, 5, 6 reichenden Längsschlitz 30 (Fig. 8) in der Umfangswand 20, 23 ausgestattet, was in den Figuren nicht deutlich abgebildet ist. In diesem Längsschlitz 30 ist jeweils der gesamte in Fig. 7 gezeigte Querschnitt des Mehrkanalflachrohres 1 eingefügt und mittels Löten dicht verbunden.FIG. 7 shows a basic cross section through a single multi-channel
The
Die Anordnung der Trennwände 21, 22, 24 geht am besten aus der Fig. 6 hervor. Die Teilquerwand 22 im Bauteil 7 bewirkt, dass ein eintrittsseitiges Mehrkanalflachrohrende 11 vom restlichen Querschnitt des Mehrkanalflachrohres 1 hydraulisch abgeteilt ist, worunter zu verstehen ist, dass innerhalb des Bauteils 7 keine hydraulische Verbindung zum restlichen Querschnitt des Mehrkanalflachrohrendes 1 besteht. Der restliche Querschnitt des Mehrkanalflachrohrendes 1 ist dem Ende des Kühlstrangs 5 und dem Anfang des Kühlstrangs 4 zugeordnet. Das erwähnte Ende und der erwähnte Anfang münden im zweiten Umlenkraum 13.2, der durch die Längstrennwand 21 und die Quertrennwand 22 im Bauteil 7 gebildet ist. Der Verteilerkanal 8 ist auf einer Seite über die Passage 34 zwischen der Längswand 21 und der Umfangswand 20 mit dem Einlass 25 verbunden und auf der anderen Seite mit dem einlassseitigen Mehrkanalflachrohrende 11. Das Bauteil 9 ist im Vergleich zum Bauteil 7 etwas einfacher konfiguriert, denn es besitzt lediglich die Quertrennwand 24, die über den gesamten Querschnitt des Bauteils 9 geht. Dadurch sind im Bauteil 9 zwei getrennte Abteilungen gebildet, wovon die größere Abteilung den ersten Umlenkraum 13.1 darstellt, in dem das dem Kühlstrang 6 zugeordnete Ende des Mehrkanalflachrohres 1 und der dem Kühlstrang 5 zugeordnete Anfang des Mehrkanalflachrohres 1 münden. Die zweite Abteilung ist der Sammelraum 10, in dem das dem Kühlstrang 4 zugeordnete austrittsseitige Mehrkanalflachrohrende 12 mündet.
Die Fig. 4, 5 und 9 zeigen, wie eingangs bereits erwähnt, den Wärmeübertrager, bestehend aus drei einzelnen, im Querschnitt etwa rechteckigen Mehrkanalflachrohren 1. Das Mehrkanalflachrohr mit dem Bezugszeichen 1.6 bildet den Kühlstrang 6, mit 1.5 den Kühlstrang 5 und mit 1.4 folglich den Kühlstrang 4. Die Mehrkanalflachrohre 1.6, 1.5 und 1.4 sind in identischer Weise serpentinenartig gebogen worden, und sie sind jeweils an ihren Schmalseiten 32 miteinander verlötet, was nur prinzipiell dargestellt ist. (Fig. 9) Die verbundenen Schmalseiten 32 befinden sich an den Stellen, die der Position der Trennwände 22 bzw. 24 entsprechen. Die Enden aller drei Mehrkanalrohre 1.6, 1.5, 1.4 sind in einem nicht deutlich gezeigten Längsschlitz 33 in den Bauteilen 7 bzw. 9 eingesetzt und dicht verlötet. In der Fig. 4 ist jedoch ein Teil des Längsschlitzes 33 in der Umfangswand 23 des Bauteils 9 angedeutet worden.The arrangement of the
4, 5 and 9 show, as already mentioned, the heat exchanger, consisting of three individual, approximately rectangular in cross section Mehrkanalflachrohren. 1 The multi-channel flat tube with the reference numeral 1.6 forms the
Claims (11)
- Heat exchanger of serpentine construction, which is composed of at least one serpentine-shaped multichannel flat tube (1) having cooling fins (3) arranged between the serpentines (2), the multichannel flat tube(s) (1) being hydraulically divided in order to provide a plurality of cooling lines (4, 5, 6) located one downstream of the other in the direction of flow of the cooling air, through which cooling lines (4, 5, 6) a refrigerant flows in succession, which heat exchanger comprises a component (7) arranged with its longitudinal axis in the direction of flow of the cooling air and acting as a distributor channel (8) and another component (9) acting as a collector channel (10) for the refrigerant, to which the entry-side multichannel flat tube end (11) or the exit-side multichannel flat tube end (12) is respectively connected, and having a deflection chamber (13) in order to allow the refrigerant to flow from one cooling line (6, 5) into the next cooling line (5, 4),
characterized in that
the component (7) containing the distributor channel (8) and/or the component (9) containing the collector channel (10) extend(s) approximately over the depth (Z) of all the cooling lines (4, 5, 6), the deflection chamber (13.1 or 13.2 respectively) being incorporated in the component(s) (7 or 8 respectively) but in a separated manner. - Heat exchanger according to Claim 1, characterized in that the direction of flow of the cooling air and the direction of flow of the refrigerant are selected such that heat exchange takes place in countercrossflow.
- Heat exchanger according to Claim 2, characterized in that the heat exchanger comprises at least three cooling lines (4, 5, 6), of which at least one is of reduced cross section, the cooling air flowing firstly through the cooling line (4), whose cross section is small, then encountering the next cooling line (5) of medium or identical size, so as finally to flow through the largest cooling line (6), and in that the refrigerant firstly flows through the largest cooling line (6), then through the medium or smaller cooling line (5), so as finally to flow through the smallest or last cooling line (4).
- Heat exchanger according to Claims 1 to 3, characterized in that the component (7) containing the distributor channel (8) comprises a peripheral wall (20) and a longitudinal partition wall (21), which extends approximately over two adjacent cooling lines (4, 5), and a transverse partition wall (22), the longitudinal partition wall (21) and the transverse partition wall (22) separating off a part of the cross section of the component (7), and in that in this separated-off part (chamber 13.2) the refrigerant is deflected for the second time, from one cooling line (5) into the next cooling line (4), and further comprises an inlet channel (8) (distributor channel), which extends along the longitudinal partition wall (21) and the peripheral wall (20) and leads to the entry-side multichannel flat tube end (11).
- Heat exchanger according to Claims 1 to 3, characterized in that the component (9) containing the collector channel (10) comprises a peripheral wall (23) and a transverse partition wall (24), the transverse partition wall (24) hydraulically separating off two adjacent cooling lines (5, 6) from the third cooling line (4), in that the refrigerant is deflected for the first time, from one cooling line (6) into the next cooling line (5), in the part (chamber 13.1) of the component (9) which includes two cooling lines (5, 6), and in that the exit-side multichannel flat tube end (12) of the third cooling line (4) leads into the remaining part of the component (9) (in the collector channel 10).
- Heat exchanger according to the preceding claims, characterized in that the cooling fins (3) are continuous over all the cooling lines (4, 5, 6).
- Heat exchanger according to one of the preceding claims, characterized in that the components (7, 9) are preferably of generally tubular construction and in each case accommodate the entire cross section of the multichannel flat tube (1) or of the cooling lines (4, 5, 6) in a longitudinal slot, which is brazed firmly and in leakproof manner therein.
- Heat exchanger according to one of the preceding claims, in particular according to 1, 2 and 4, characterized in that a refrigerant inlet (25) is arranged preferably in the vicinity of one end face of the component (7) containing the distributor channel (8), which refrigerant inlet (25) is located at the end of the component (7) remote from the entry-side multichannel flat tube end (11).
- Heat exchanger according to one of the preceding claims, in particular according to 1, 2 and 5, characterized in that a refrigerant outlet (26) is arranged preferably in the vicinity of an end face of the component (9) containing the collector channel (10), which refrigerant outlet (26) is connected at the point where the exit-side multichannel flat tube end (12) leads into the component (9).
- Heat exchanger according to one of the preceding claims, characterized in that the transverse partition wall (22) is arranged in the component (7) containing the distributor channel (8) at the point where the cooling line (6) with the largest cross section adjoins the adjacent cooling block (5) or where the multichannel flat tube (1) is hydraulically divided between the largest cooling line (6) and the adjacent cooling line (5).
- Heat exchanger according to one of the preceding claims, characterized in that a single multichannel flat tube (1) or a plurality of multichannel flat tubes (1.6, 1.5, 1.4) is/are present.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10248665A DE10248665A1 (en) | 2002-10-18 | 2002-10-18 | Heat exchanger in serpentine design |
DE10248665 | 2002-10-18 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1411310A2 EP1411310A2 (en) | 2004-04-21 |
EP1411310A3 EP1411310A3 (en) | 2005-12-28 |
EP1411310B1 true EP1411310B1 (en) | 2007-12-05 |
Family
ID=32038764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03020914A Expired - Lifetime EP1411310B1 (en) | 2002-10-18 | 2003-09-16 | Heat exhanger with serpentine structure |
Country Status (3)
Country | Link |
---|---|
US (1) | US7069980B2 (en) |
EP (1) | EP1411310B1 (en) |
DE (2) | DE10248665A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014137217A1 (en) * | 2013-03-04 | 2014-09-12 | Norsk Hydro Asa | Heat exchanger inlet and outlet design |
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US20050279488A1 (en) * | 2004-06-17 | 2005-12-22 | Stillman Harold M | Multiple-channel conduit with separate wall elements |
US20050279127A1 (en) * | 2004-06-18 | 2005-12-22 | Tao Jia | Integrated heat exchanger for use in a refrigeration system |
WO2009111129A1 (en) * | 2008-03-07 | 2009-09-11 | Carrier Corporation | Heat exchanger tube configuration for improved flow distribution |
KR101186552B1 (en) | 2010-06-30 | 2012-10-08 | 갑을오토텍(주) | A heat exchanger |
WO2012002698A2 (en) * | 2010-06-30 | 2012-01-05 | 갑을오토텍(주) | Heat exchanger |
US9282650B2 (en) * | 2013-12-18 | 2016-03-08 | Intel Corporation | Thermal compression bonding process cooling manifold |
US10995996B2 (en) | 2014-10-07 | 2021-05-04 | Unison Industries, Llc | Multi-branch furcating flow heat exchanger |
US11892245B2 (en) | 2014-10-07 | 2024-02-06 | General Electric Company | Heat exchanger including furcating unit cells |
DE102014222113A1 (en) * | 2014-10-29 | 2016-05-04 | BSH Hausgeräte GmbH | Refrigeration device with a heat circulation system |
KR102568753B1 (en) * | 2015-12-31 | 2023-08-21 | 엘지전자 주식회사 | Heat Exchanger |
US11209212B2 (en) | 2018-03-23 | 2021-12-28 | Modine Manufacturing Company | High pressure capable liquid to refrigerant heat exchanger |
US10982553B2 (en) | 2018-12-03 | 2021-04-20 | General Electric Company | Tip rail with cooling structure using three dimensional unit cells |
CA3147194A1 (en) * | 2019-08-07 | 2021-02-11 | Jianmin Yin | High efficiency tankless water heater |
US20210156339A1 (en) * | 2019-11-27 | 2021-05-27 | General Electric Company | Cooling system for an engine assembly |
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US4982579A (en) * | 1989-03-31 | 1991-01-08 | Showa Aluminum Corporation | Evaporator |
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JP2997816B2 (en) * | 1990-07-09 | 2000-01-11 | 昭和アルミニウム株式会社 | Capacitor |
JP2997817B2 (en) * | 1990-07-23 | 2000-01-11 | 昭和アルミニウム株式会社 | Heat exchanger |
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US5314013A (en) * | 1991-03-15 | 1994-05-24 | Sanden Corporation | Heat exchanger |
US5368097A (en) * | 1992-10-27 | 1994-11-29 | Sanden Corporation | Heat exchanger |
US5682944A (en) * | 1992-11-25 | 1997-11-04 | Nippondenso Co., Ltd. | Refrigerant condenser |
JPH06317363A (en) | 1993-05-07 | 1994-11-15 | Showa Alum Corp | Heat exchanger |
US5875837A (en) * | 1998-01-15 | 1999-03-02 | Modine Manufacturing Company | Liquid cooled two phase heat exchanger |
KR19990074845A (en) * | 1998-03-16 | 1999-10-05 | 윤종용 | Parallel flow heat exchanger |
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-
2002
- 2002-10-18 DE DE10248665A patent/DE10248665A1/en not_active Withdrawn
-
2003
- 2003-09-16 EP EP03020914A patent/EP1411310B1/en not_active Expired - Lifetime
- 2003-09-16 DE DE50308721T patent/DE50308721D1/en not_active Expired - Lifetime
- 2003-10-14 US US10/684,934 patent/US7069980B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014137217A1 (en) * | 2013-03-04 | 2014-09-12 | Norsk Hydro Asa | Heat exchanger inlet and outlet design |
Also Published As
Publication number | Publication date |
---|---|
DE10248665A1 (en) | 2004-04-29 |
EP1411310A3 (en) | 2005-12-28 |
US20040194934A1 (en) | 2004-10-07 |
EP1411310A2 (en) | 2004-04-21 |
DE50308721D1 (en) | 2008-01-17 |
US7069980B2 (en) | 2006-07-04 |
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