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EP1684032A2 - Condenser for an air conditioning device, especially for a vehicle - Google Patents

Condenser for an air conditioning device, especially for a vehicle Download PDF

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Publication number
EP1684032A2
EP1684032A2 EP05023943A EP05023943A EP1684032A2 EP 1684032 A2 EP1684032 A2 EP 1684032A2 EP 05023943 A EP05023943 A EP 05023943A EP 05023943 A EP05023943 A EP 05023943A EP 1684032 A2 EP1684032 A2 EP 1684032A2
Authority
EP
European Patent Office
Prior art keywords
collector
condenser
block
refrigerant
subcooling
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
EP05023943A
Other languages
German (de)
French (fr)
Other versions
EP1684032B1 (en
EP1684032A3 (en
Inventor
Peter Berenz
Gustavo Fuga Santos
Pedro Dipl.-Ing. Gonzalez Rechea
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 Gerenciamento Termico Brasil Ltda
Mahle Behr GmbH and Co KG
Original Assignee
Behr Brasil Ltda
Behr GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Behr Brasil Ltda, Behr GmbH and Co KG filed Critical Behr Brasil Ltda
Publication of EP1684032A2 publication Critical patent/EP1684032A2/en
Publication of EP1684032A3 publication Critical patent/EP1684032A3/en
Application granted granted Critical
Publication of EP1684032B1 publication Critical patent/EP1684032B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0442—Condensers with an integrated receiver characterised by the mechanical fixation of the receiver to the header
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0443—Condensers with an integrated receiver the receiver being positioned horizontally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0446—Condensers with an integrated receiver characterised by the refrigerant tubes connecting the header of the condenser to the receiver; Inlet or outlet connections to receiver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers

Definitions

  • the invention relates to a condenser for an air conditioner, in particular a motor vehicle according to the preamble of patent claim 1.
  • Condensers for air conditioning systems are arranged in the front engine compartment of a motor vehicle, usually together with a cooler as a so-called cooling module and are flowed through by ambient air, ie the wind of the motor vehicle or a fan-assisted air flow.
  • a cooling module consisting of coolant radiator and condenser, also associated with a charge air cooler, which is arranged in the air flow direction in front of the capacitor and covers a lower portion of the end face of the capacitor.
  • a condenser for an automotive air conditioning system consists of a finned tube block, the tubes are flowed through by a refrigerant, which is distributed over laterally arranged from the block manifolds, deflected and collected.
  • Capacitors are often flowed through with multiple floods, ie from the inlet of the gaseous refrigerant to the outlet of liquid refrigerant.
  • the last through-flowed tubes of the block form a so-called subcooling section (also: subcooling), in which the already liquid refrigerant is cooled below its condensation temperature.
  • subcooling section also: subcooling
  • the installation conditions for the installation of a capacitor in the front engine compartment of a motor vehicle are very different: sometimes there are limitations in the width, some restrictions in the height of the installation space and sometimes the ventilation conditions for the capacitor are different, for example, with additional arrangement of a charge air cooler in the air flow direction the capacitor. In this case, an undercooling line below is insufficiently cooled.
  • the collector or the dryer bottle is arranged above the condenser block. This results in the advantage of a smaller installation width for the condenser, consisting of Kondensatvrblock and laterally arranged headers,
  • the capacitor is designed as a cross-flow capacitor with an overhead subcooling, d. H. it is traversed essentially from bottom to top of multiple fl ow of refrigerant.
  • the collector by means of holders on the capacitor block, preferably attached to the side part.
  • the holder can thus be formed as sheet metal parts, which are soldered to the collector.
  • the collector arranged substantially above the condenser block is offset or arranged in the air flow direction in front of or behind an end face of the condenser. This results in the advantage of better space utilization and a slightly lower height.
  • Fig. 1 shows a capacitor 1 for a motor vehicle air conditioning system, not shown.
  • the condenser 1 is designed as a cross-flow condenser with a condenser block (also called fins / tube block) consisting of non-illustrated flat tubes and corrugated fins and has two laterally and vertically arranged headers 3, 4 - in this position, the condenser 1 is not in the illustrated front engine compartment of the vehicle installed and there flows through ambient air or the wind, which enters through a grill, not shown, in the front region of the vehicle.
  • At the two manifolds 3, 4 holders 5, 6, 7, 8 are fixed, with which the capacitor 1 in the vehicle in a manner not shown, for. B. is attached to a coolant radiator.
  • the condenser 1 is flowed through by a plurality of refrigerant, which enters via a refrigerant inlet line 9 into the collector 4, which is divided into chambers, not shown.
  • the approximately 40 tubes having condenser block 2 is four-flow flows through from bottom to top, wherein the flow cross-section of each through-flow in one tubes decreases gradually.
  • a so-called subcooling path UK which consists of about four pipes, not shown, which lead substantially liquid refrigerant and open into an upper chamber 4a of the manifold 4.
  • a collector 10 which is known per se is arranged, which is of tubular design and is also referred to as a dryer bottle because it contains a dryer, not shown here.
  • the collector 10 is arranged substantially horizontally and fixed to the capacitor block 2.
  • the interior of the collector 10 is connected via a short line section 11 with the upper chamber 4a of the manifold 4 and thus with the subcooling UK.
  • the collector 10 also serves for the storage of refrigerant.
  • the refrigerant passes from the collector 10 to a connection flange 13, via which the condenser 1 can be connected to a refrigerant circuit, not shown.
  • FIG. 2 shows a perspective view of the upper part of the capacitor 1 according to FIG. 1 in a view from the rear, ie the capacitor 1 is rotated approximately 180 degrees about its vertical axis relative to the view in FIG.
  • the collector 10 is attached via two holders 14, 15 on the capacitor block 2, which has on its upper side a side part 12, consisting of a flat or profiled sheet.
  • the entire capacitor 1 is brazed, ie also the side part 16 is soldered to the block 2 and thus forms a stable base for holding the collector 10. It can be seen from this illustration that the upper subcooling UK is undisturbed by air can flow and thus is well cooled.
  • Fig. 3 shows the capacitor 1 (again the same reference numerals are used for the same parts) in a side view, ie with a view towards the manifold 3, wherein the capacitor 1, however, is slightly inclined towards vome, so that the side part 16 is shortened recognizable.
  • the holders 14, 15 are inclined slightly upwards relative to an imaginary horizontal and at the same time act as spacers between the collector 10 and the condenser block 2-
  • the air flow direction is represented by an arrow L, ie in the drawing from left to right;
  • the reverse direction represented by a dashed arrow L ', is also possible. In both cases, the above-lying subcooling UK is flowed virtually undisturbed, even in the air flow direction L '.
  • the collector 10 is - as the drawing shows - arranged offset in the air flow direction L relative to the capacitor block 2, wherein at the same time a certain overlap between upper edge block 2 and lower edge collector 10 results. It is essential, however, that both subcooling UK and collector 10 are at the top, ie have approximately the same height and thus only a short connection on the refrigerant side.
  • the connecting flange 13 takes - as well recognizable here - the refrigerant inlet line 9 and the refrigerant outlet line 12 in corresponding holes and connects both in a manner not shown with corresponding mating connections of the refrigerant circuit, not shown, the motor vehicle air conditioning.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The condenser (1) has a condenser block (2), where a manifold (10) is arranged substantially above the condenser block. A super cooling section is arranged upper or top section condenser block. An under cooling section is arranged in a lower or middle area of the condenser block. The manifold is connected to the condenser block using fastener. The condenser block has a side part to which the fasteners are fastened.

Description

Die Erfindung betrifft einen Kondensator für eine Klimaanlage, insbesondere eines Kraftfahrzeuges nach dem Oberbegriff des Patentanspruches 1.The invention relates to a condenser for an air conditioner, in particular a motor vehicle according to the preamble of patent claim 1.

Kondensatoren für Klimaanlagen, insbesondere von Kraftfahrzeugen, sind im vorderen Motorraum eines Kraftfahrzeuges, meist zusammen mit einem Kühler als so genanntes Kühlmodul angeordnet und werden von Umgebungsluft, d. h. dem Fahrtwind des Kraftfahrzeuges bzw. einem von einem Lüfter geförderten Luftstrom durchströmt. Teilweise ist einem Kühlmodul, bestehend aus Kühlmittelkühler und Kondensator, auch ein Ladeluftkühler zugeordnet, der in Luftströmungsrichtung vor dem Kondensator angeordnet ist und einen unteren Bereich der Stimfläche des Kondensators abdeckt. Ein Kondensator für eine Kraftfahrzeugklimaanlage besteht aus einem Rippenrohrblock, dessen Rohre von einem Kältemittel durchströmt werden, welches über seitlich des Blockes angeordnete Sammelrohre verteilt, umgelenkt und gesammelt wird. Kondensatoren werden vielfach mehrflutig durchströmt, d. h. vom Eintritt des gasförmigen Kältemittels bis zum Austritt von flüssigem Kältemittel. Die zuletzt durchströmten Rohre des Blockes bilden einen so genannten Unterkühlabschnitt (auch: Unterkühlstrecke), in welchem das bereits flüssige Kältemittel unter seine Kondensationstemperatur abgekühlt wird. Durch die DE 42 38 853 C2 der Anmelderin wurde ein Kondensator für eine Kraftfahrzeugkilmaanlage bekannt, welcher als Querstromkühler mit einer unten liegenden Unterkühlstrecke und einem seitlich angeordneten Sammler ausgebildet ist. Der Sammler dient dabei als Kältemittelspeicher, Gasabscheider und Trockner und ist weitestgehend mit einem benachbarten Sammelrohr integriert.Condensers for air conditioning systems, especially of motor vehicles, are arranged in the front engine compartment of a motor vehicle, usually together with a cooler as a so-called cooling module and are flowed through by ambient air, ie the wind of the motor vehicle or a fan-assisted air flow. Partly, a cooling module, consisting of coolant radiator and condenser, also associated with a charge air cooler, which is arranged in the air flow direction in front of the capacitor and covers a lower portion of the end face of the capacitor. A condenser for an automotive air conditioning system consists of a finned tube block, the tubes are flowed through by a refrigerant, which is distributed over laterally arranged from the block manifolds, deflected and collected. Capacitors are often flowed through with multiple floods, ie from the inlet of the gaseous refrigerant to the outlet of liquid refrigerant. The last through-flowed tubes of the block form a so-called subcooling section (also: subcooling), in which the already liquid refrigerant is cooled below its condensation temperature. By DE 42 38 853 C2 of the Applicant, a condenser for a Kraftfahrzeugkilmaanlage was known, which as a cross-flow cooler with a lower subcooling and a laterally arranged collector is formed. The collector serves as a refrigerant reservoir, gas separator and dryer and is largely integrated with a neighboring manifold.

Durch die DE 196 45 502 C2 sowie die DE 102 37 037 A1 der Anmelderin wurden Kondensatoren für Kraftfahrzeugklimaanlagen mit einem Trockner (Trocknerflasche) bekannt, welcher unterhalb des Kondensatorblockes angeordnet ist. Der Kondensator wird von oben nach unten von Kältemittel durchströmt und weist somit eine unten liegende Unterkühlstrecke auf, an welche sich kältemittelseitig der Trockner anschließt. Durch die DE 198 30 329 A1 sowie die DE 199 12 381 A1 der Anmelderin wurden Kondensatoren mit oben liegender Unterkühlstrecke bekannt, und zwar mit seitlich angeordnetem Sammler bzw. Trockner. Auch in der älteren Anmeldung der Anmelderin mit dem amtlichen Aktenzeichen 104..... (Zeichen der Anmelderin: 03-B-107) wurde ein Kondensator mit oben liegender Unterkühlstrecke und seitlich angeordnetem Sammler mit einem Trockner-Filtereinsatz bekannt. Schließlich wurde durch die ältere Anmeldung der Anmelderin mit dem amtlichen Aktenzeichen 103..... (Zeichen der Anmelderin: 03-B-033) ein Querstromkondensator mit unten liegender Unterkühlstrecke und einer Trocknerflasche bekannt, welche im unteren Bereich und in Luftströmungsrichtung vor dem Kondensator angeordnet ist.By DE 196 45 502 C2 and DE 102 37 037 A1 of the applicant capacitors for motor vehicle air conditioners with a dryer (dryer bottle) were known, which is arranged below the condenser block. The condenser is flowed through from top to bottom by refrigerant and thus has a lower subcooling, which is followed by the refrigerant side of the dryer. By DE 198 30 329 A1 and DE 199 12 381 A1 of the applicant capacitors were known with overhead subcooling, with a laterally arranged collector or dryer. Also in the earlier application of the Applicant with the official file number 104 ..... (sign of the Applicant: 03-B-107), a condenser with overhead subcooling and laterally arranged collector with a dryer-filter cartridge was known. Finally, by the applicant's earlier application with the official file number 103 ..... (sign of the Applicant: 03-B-033) a cross-flow capacitor with underlying subcooling and a dryer bottle is known, which in the lower region and in the air flow direction in front of the condenser is arranged.

Die Einbauverhältnisse für den Einbau eines Kondensators im vorderen Motorraum eines Kraftfahrzeuges sind sehr unterschiedlich: teilweise gibt es Beschränkungen in der Breite, teilweise Beschränkungen in der Höhe des Bauraumes und teilweise sind die Belüftungsverhältnisse für den Kondensator unterschiedlich, beispielsweise bei zusätzlicher Anordnung eines Ladeluftkühlers in Luftströmungsrichtung vor dem Kondensator. In diesem Falle wird eine unten liegende Unterkühlstrecke nur unzureichend gekühlt.The installation conditions for the installation of a capacitor in the front engine compartment of a motor vehicle are very different: sometimes there are limitations in the width, some restrictions in the height of the installation space and sometimes the ventilation conditions for the capacitor are different, for example, with additional arrangement of a charge air cooler in the air flow direction the capacitor. In this case, an undercooling line below is insufficiently cooled.

Es ist Aufgabe der vorliegenden Erfindung, einen Kondensator der eingangs genannten Art derart auszubilden, dass er speziellen Einbaubedingungen im Fahrzeug genügt.It is an object of the present invention, a capacitor of the type mentioned in such a way that it meets specific installation conditions in the vehicle.

Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst. Erfindungsgemäß ist vorgesehen, dass der Sammler bzw. die Trocknerflasche oberhalb des Kondensatorblockes angeordnet ist. Dadurch ergibt sich der Vorteil einer geringeren Einbaubreite für den Kondensator, bestehend aus Kondensatvrblock und seitlich angeordneten Sammelrohren,This object is solved by the features of claim 1. According to the invention, it is provided that the collector or the dryer bottle is arranged above the condenser block. This results in the advantage of a smaller installation width for the condenser, consisting of Kondensatvrblock and laterally arranged headers,

In weiterer vorteilhafter Ausgestaltung der Erfindung ist der Kondensator als Querstromkondensator mit einer oben liegenden Unterkühlstrecke ausgebildet, d. h. er wird im Wesentlichen von unten nach oben mehrflutig von Kältemittel durchströmt. Die letzten Rohre, etwa vier, bilden dabei den so genannten Unterkühlabschnitt, an welchen sich kältemittelseitig über ein Verbindungsrohr der oben angeordnete Sammler anschließt. Damit wird der Vorteil erreicht, dass zwischen Unterkühlabschnitt und Sammler nur ein kurzer Leitungsabschnitt erforderlich ist, welcher einen geringen Druckabfall bedeutet. Durch die oben liegende Unterkühlstrecke wird der Vorteil einer besseren Belüftung erreicht für den Fall, dass im unteren Kondensationsbereich des Kondensators unzureichende Belüftungsverhältnisse vorliegen. Oben liegende Unterkühlstrecke mit oben liegendem Sammler mit verlustarmer Kältemittelverbindung ergänzen sich somit vorteilhaft.In a further advantageous embodiment of the invention, the capacitor is designed as a cross-flow capacitor with an overhead subcooling, d. H. it is traversed essentially from bottom to top of multiple fl ow of refrigerant. The last tubes, about four, form the so-called subcooling section, which is followed by the collector arranged on the top side of the refrigerant via a connecting tube. Thus, the advantage is achieved that between subcooling and collector only a short line section is required, which means a small pressure drop. The above-mentioned subcooling the advantage of better ventilation is achieved in the event that in the lower condensation of the condenser insufficient ventilation conditions. Above-lying subcooling with overhead collector with low-loss refrigerant compound thus complement each other advantageous.

In weiterer vorteilhafter Ausgestaltung der Erfindung ist der Sammler mittels Haltern am Kondensatorblock, vorzugsweise an dessen Seitenteil befestigt. Die Halter können somit als Blechteile ausgebildet sein, welche mit dem Sammler verlötet werden.In a further advantageous embodiment of the invention, the collector by means of holders on the capacitor block, preferably attached to the side part. The holder can thus be formed as sheet metal parts, which are soldered to the collector.

In weiterer vorteilhafter Ausgestaltung der Erfindung ist der im Wesentlichen oberhalb des Kondensatorblocks angeordnete Sammler versetzt bzw. in Luftströmungsrichtung vor oder hinter einer Stimfläche des Kondensators angeordnet. Damit ergibt sich der Vorteil einer besseren Bauraumausnutzung und eine etwas geringere Bauhöhe.In a further advantageous embodiment of the invention, the collector arranged substantially above the condenser block is offset or arranged in the air flow direction in front of or behind an end face of the condenser. This results in the advantage of better space utilization and a slightly lower height.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben. Es zeigen

Fig. 1
einen Kondensator mit oben liegendem Sammler in einer Ansicht von vom,
Fig. 2
einen oberen Ausschnitt des Sammlers gemäß Fig. 1 in perspektivischer Darstellung und Ansicht von hinten und
Fig. 3
den Kondensator gemäß Fig. 1 und 2 in einer Seitenansicht.
An embodiment of the invention is illustrated in the drawing and will be described in more detail below. Show it
Fig. 1
a condenser with overhead collector in a view from, from,
Fig. 2
an upper section of the collector of FIG. 1 in a perspective view and view from the back and
Fig. 3
the capacitor of FIG. 1 and 2 in a side view.

Fig. 1 zeigt einen Kondensator 1 für eine nicht dargestellte Kraftfahrzeugklimaanlage. Der Kondensator 1 ist als Querstromkondensator ausgebildet mit einem aus nicht näher dargestellten Flachrohren und Wellrippen bestehenden Kondensatorblock (auch Rippen/Rohr-Block genannt) und weist zwei seitlich und senkrecht angeordnete Sammelrohre 3, 4 auf - in dieser Lage wird der Kondensator 1 in den nicht dargestellten vorderen Motorraum des Kraftfahrzeuges eingebaut und dort von Umgebungsluft bzw. vom Fahrtwind durchströmt, welcher durch einen nicht dargestellten Grill im Frontbereich des Fahrzeuges eintritt. An den beiden Sammelrohren 3, 4 sind Halter 5, 6, 7, 8 befestigt, mit denen der Kondensator 1 im Fahrzeug auf nicht dargestellte Weise, z. B. an einem Kühlmittelkühler befestigt wird. Der Kondensator 1 wird mehrflutig von Kältemittel durchströmt, welches über eine Kältemitteleintrittsleitung 9 in den Sammler 4, welcher in nicht dargestellte Kammern unterteilt ist, eintritt. Infolge weiterer nicht dargestellter Trennwände, auch im Sammelrohr 3, wird der etwa 40 Rohre aufweisende Kondensatorblock 2 vierflutig von unten nach oben durchströmt, wobei der Strömungsquerschnitt der jeweils in einer Richtung durchströmten Rohre sukzessive abnimmt. Im obersten Bereich des Kondensatorblockes 2 befindet sich eine so genannte Unterkühlstrecke UK, welche aus etwa vier nicht dargestellten Rohren besteht, die im Wesentlichen flüssiges Kältemittel führen und in eine obere Kammer 4a des Sammelrohres 4 münden. Im obersten Bereich des Kondensatorblockes 2 ist ein an sich bekannter Sammler 10 angeordnet, welcher rohrförmig ausgebildet ist und auch als Trocknerflasche bezeichnet wird, weil er einen hier nicht dargestellten Trockner enthält. Der Sammler 10 ist im Wesentlichen horizontal angeordnet und am Kondensatorblock 2 befestigt. Der Innenraum des Sammlers 10 ist über einen kurzen Leitungsabschnitt 11 mit der oberen Kammer 4a des Sammelrohres 4 und damit mit der Unterkühlstrecke UK verbunden. Durch die Leitung 11 gelangt somit flüssiges Kältemittel in den Trockner 10, wo das Kältemittel getrocknet wird und Gasblasen aus dem Kältemittel abgeschieden werden. Der Sammler 10 dient gleichzeitig der Bevorratung von Kältemittel. Über eine Kältemittelaustrittsleitung 12 gelangt das Kältemittel aus dem Sammler 10 zu einem Anschlussflansch 13, über welchen der Kondensator 1 an einen nicht, dargestellten Kältemittelkreislauf anschließbar ist. Fig. 1 shows a capacitor 1 for a motor vehicle air conditioning system, not shown. The condenser 1 is designed as a cross-flow condenser with a condenser block (also called fins / tube block) consisting of non-illustrated flat tubes and corrugated fins and has two laterally and vertically arranged headers 3, 4 - in this position, the condenser 1 is not in the illustrated front engine compartment of the vehicle installed and there flows through ambient air or the wind, which enters through a grill, not shown, in the front region of the vehicle. At the two manifolds 3, 4 holders 5, 6, 7, 8 are fixed, with which the capacitor 1 in the vehicle in a manner not shown, for. B. is attached to a coolant radiator. The condenser 1 is flowed through by a plurality of refrigerant, which enters via a refrigerant inlet line 9 into the collector 4, which is divided into chambers, not shown. As a result of further partitions, not shown, also in the manifold 3, the approximately 40 tubes having condenser block 2 is four-flow flows through from bottom to top, wherein the flow cross-section of each through-flow in one tubes decreases gradually. In the uppermost area of the condenser block 2 is a so-called subcooling path UK, which consists of about four pipes, not shown, which lead substantially liquid refrigerant and open into an upper chamber 4a of the manifold 4. In the uppermost region of the condenser block 2, a collector 10 which is known per se is arranged, which is of tubular design and is also referred to as a dryer bottle because it contains a dryer, not shown here. The collector 10 is arranged substantially horizontally and fixed to the capacitor block 2. The interior of the collector 10 is connected via a short line section 11 with the upper chamber 4a of the manifold 4 and thus with the subcooling UK. Through the conduit 11 thus liquid refrigerant enters the dryer 10, where the refrigerant is dried and gas bubbles are separated from the refrigerant. The collector 10 also serves for the storage of refrigerant. Via a refrigerant outlet line 12, the refrigerant passes from the collector 10 to a connection flange 13, via which the condenser 1 can be connected to a refrigerant circuit, not shown.

Fig. 2 zeigt eine perspektivische Darstellung des oberen Teils des Kondensators 1 gemäß Fig. 1 in einer Ansicht von hinten, d. h. der Kondensator 1 ist gegenüber der Ansicht in Fig. 4 etwa um 180 Grad um seine Hochachse gedreht. Der Sammler 10 ist über zwei Halter 14, 15 am Kondensatorblock 2 befestigt, welcher auf seiner Oberseite ein Seitenteil 12, bestehend aus einem flachen oder profilierten Blech, aufweist. Der gesamte Kondensator 1 ist hart gelötet, d. h. auch das Seitenteil 16 ist mit dem Block 2 verlötet und bildet somit eine stabile Basis zur Halterung des Sammlers 10. Man erkennt aus dieser Darstellung, dass die oben liegende Unterkühlstrecke UK ungestört von Luft anströmbar ist und somit gut gekühlt wird. Somit ist sichergestellt, dass das Kältemittel in flüssigem Zustand bleibt und unter seine Kondensationstemperatur abgekühlt wird, so dass nur flüssiges Kältemittel in den Sammler 10 eintritt. Der geodätische Unterschied zwischen Unterkühlstrecke UK und Sammler 10 ist somit relativ gering, daher tritt nur ein geringer kältemittelseitiger Druckabfall beim Übertritt in den Sammler 10 auf, zumal die Verbindungsleitung 11 ausgesprochen kurz ist. FIG. 2 shows a perspective view of the upper part of the capacitor 1 according to FIG. 1 in a view from the rear, ie the capacitor 1 is rotated approximately 180 degrees about its vertical axis relative to the view in FIG. The collector 10 is attached via two holders 14, 15 on the capacitor block 2, which has on its upper side a side part 12, consisting of a flat or profiled sheet. The entire capacitor 1 is brazed, ie also the side part 16 is soldered to the block 2 and thus forms a stable base for holding the collector 10. It can be seen from this illustration that the upper subcooling UK is undisturbed by air can flow and thus is well cooled. This ensures that the refrigerant remains in the liquid state and is cooled below its condensation temperature, so that only liquid refrigerant enters the collector 10. The geodetic difference between subcooling UK and collector 10 is thus relatively low, therefore, only a small refrigerant side pressure drop occurs when entering the collector 10, especially since the connecting line 11 is extremely short.

Fig. 3 zeigt den Kondensator 1 (es werden wiederum gleiche Bezugszahlen für gleiche Teile verwendet) in einer Seitenansicht, d. h. mit Blickrichtung auf das Sammelrohr 3, wobei der Kondensator 1 allerdings leicht nach vome geneigt ist, so dass das Seitenteil 16 verkürzt erkennbar ist. Die Halter 14, 15 sind gegenüber einer gedachten Horizontalen leicht nach oben geneigt und wirken gleichzeitig als Abstandshalter zwischen Sammler 10 und Kondensatorblock 2- Die Luftströmungsrichtung ist durch einen Pfeil L dargestellt, d. h. in der Zeichnung von links nach rechts; die umgekehrte Richtung, dargestellt durch einen gestrichelten Pfeil L', ist jedoch auch möglich. In beiden Fällen wird die oben liegenden Unterkühlstrecke UK praktisch ungestört angeströmt, auch bei der Luftströmungsrichtung L'. Der Sammler 10 ist - wie die zeichnerische Darstellung zeigt - in Luftströmungsrichtung L gegenüber dem Kondensatorblock 2 versetzt angeordnet, wobei sich gleichzeitig eine gewisse Überschneidung zwischen Oberkante Block 2 und Unterkante Sammler 10 ergibt. Wesentlich ist jedoch, dass sowohl Unterkühlstrecke UK als auch Sammler 10 oben liegen, d. h. ungefähr auf gleicher Höhe und somit nur eine kurze kältemittelseitige Verbindung aufweisen. Der Anschlussflansch 13 nimmt - wie hier gut erkennbar - die Kältemitteleintrittsleitung 9 und die Kältemittelaustrittsleitung 12 in entsprechenden Bohrungen auf und verbindet beide in nicht dargestellter Weise mit entsprechenden Gegenanschlüssen des nicht dargestellten Kältemittelkreislaufes der Kraftfahrzeugklimaanlage. Fig. 3 shows the capacitor 1 (again the same reference numerals are used for the same parts) in a side view, ie with a view towards the manifold 3, wherein the capacitor 1, however, is slightly inclined towards vome, so that the side part 16 is shortened recognizable. The holders 14, 15 are inclined slightly upwards relative to an imaginary horizontal and at the same time act as spacers between the collector 10 and the condenser block 2- The air flow direction is represented by an arrow L, ie in the drawing from left to right; However, the reverse direction, represented by a dashed arrow L ', is also possible. In both cases, the above-lying subcooling UK is flowed virtually undisturbed, even in the air flow direction L '. The collector 10 is - as the drawing shows - arranged offset in the air flow direction L relative to the capacitor block 2, wherein at the same time a certain overlap between upper edge block 2 and lower edge collector 10 results. It is essential, however, that both subcooling UK and collector 10 are at the top, ie have approximately the same height and thus only a short connection on the refrigerant side. The connecting flange 13 takes - as well recognizable here - the refrigerant inlet line 9 and the refrigerant outlet line 12 in corresponding holes and connects both in a manner not shown with corresponding mating connections of the refrigerant circuit, not shown, the motor vehicle air conditioning.

Claims (8)

Kondensator (1) für eine Klimaanlage, insbesondere eines Kraftfahrzeuges mit einem mehrflutig in mehreren Abschnitten von einem Kältemittel durchströmbaren Rippen/Rohr-Block (2), beiderseits angeordneten Sammelrohren (3, 4) sowie mit einem Sammler (10), wobei ein Abschnitt als Unterkühlabschnitt (UK) ausgebildet ist, der mit dem Sammler (10) in Kältemittelverbindung steht, dadurch gekennzeichnet, dass der Sammler (10) im Wesentlichen oberhalb des Rippen/Rohr-Blockes (2) angeordnet ist.Condenser (1) for an air conditioner, in particular a motor vehicle with a ribs / tube block (2), which can be flowed through in multiple sections by a refrigerant, on both sides arranged collecting tubes (3, 4) and with a collector (10), wherein a section as Subcooling (UK) is formed, which is in refrigerant communication with the collector (10), characterized in that the collector (10) is arranged substantially above the rib / tube block (2). Kondensator nach Anspruch 1, dadurch gekennzeichnet, dass der Unterkühlabschnitt (UK) im oberen oder obersten Bereich des Rippen/Rohr-Blockes (2) angeordnet ist.A condenser according to claim 1, characterized in that the subcooling section (UK) is arranged in the upper or uppermost region of the rib / tube block (2). Kondensator nach Anspruch 1, dadurch gekennzeichnet, dass der Unterkühlabschnitt im unteren oder mittleren Bereich des Rippen/Rohr-Blockes (2) angeordnet ist.A condenser according to claim 1, characterized in that the subcooling section is arranged in the lower or middle region of the rib / tube block (2). Kondensator nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass der Sammler (10) mittels Haltern (14, 15) am Rippen/Rohr-Block (2) befestigt ist.Condenser according to claim 1, 2 or 3, characterized in that the collector (10) by means of holders (14, 15) is fixed to the rib / tube block (2). Kondensator nach Anspruch 4, dadurch gekennzeichnet, dass der Rippen/Rohr-Block (2) ein Seitenteil (16) aufweist, an welchem die Halter (14, 15) befestigt sind.A capacitor according to claim 4, characterized in that the rib / tube block (2) has a side part (16) to which the holders (14, 15) are attached. Kondensator nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Sammler (10), in Luftströmungsrichtung L gesehen, vor oder hinter dem Rohr/Rippen-Block (2) angeordnet ist.Condenser according to one of claims 1 to 5, characterized in that the collector (10), seen in the direction of air flow L, is arranged in front of or behind the tube / fin block (2). Kondensator nach Anspruch 2, dadurch gekennzeichnet, dass der Sammler (10) über ein kurzes Kältemittelrohr (11) mit einem Sammelrohr (4, 4a) verbunden ist.Condenser according to claim 2, characterized in that the collector (10) via a short refrigerant pipe (11) with a collecting pipe (4, 4a) is connected. Kondensator nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Sammler (10) rohrförmig ausgebildet ist und eine Längsachse aufweist, die parallel zu den Rohren des Rippen/RohrBlockes (2), d. h. im Wesentlichen horizontal angeordnet ist.Condenser according to one of claims 1 to 7, characterized in that the collector (10) is tubular and has a longitudinal axis which is parallel to the tubes of the rib / tube block (2), that is arranged substantially horizontally.
EP20050023943 2004-11-10 2005-11-03 Condenser for an air conditioning device, especially for a vehicle Active EP1684032B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410054440 DE102004054440A1 (en) 2004-11-10 2004-11-10 Condenser for air conditioning system of motor vehicle, has condenser block, where manifold is arranged substantially above condenser block and connected to condenser block using fastener

Publications (3)

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EP1684032A2 true EP1684032A2 (en) 2006-07-26
EP1684032A3 EP1684032A3 (en) 2008-03-19
EP1684032B1 EP1684032B1 (en) 2014-10-15

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EP20050023943 Active EP1684032B1 (en) 2004-11-10 2005-11-03 Condenser for an air conditioning device, especially for a vehicle

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EP (1) EP1684032B1 (en)
BR (1) BRPI0505065A (en)
DE (1) DE102004054440A1 (en)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
FR2923899B1 (en) * 2007-11-20 2017-05-05 Valeo Systemes Thermiques Branche Thermique Moteur CONDENSER FOR AIR CONDITIONING CIRCUIT WITH INTEGRATED BOTTLE
DE102008008984A1 (en) 2008-02-13 2009-08-20 Volkswagen Ag Condenser dryer bottle for cooling system of motor vehicle, has tubular pressure container including flat shape structure corresponding to cross sections, where diameter of one of cross sections is greater than specified value
DE102008004744A1 (en) 2008-01-16 2009-07-23 Volkswagen Ag Dryer cartridge for condenser of cooling system for motor vehicle, has tubular pressure tank including area with length of preset percent of tank's length, and sectional diameter of preset percent of tank's sectional diameter
JP5664063B2 (en) * 2010-09-21 2015-02-04 株式会社デンソー Condenser
JP5796666B2 (en) * 2014-06-06 2015-10-21 株式会社デンソー Condenser

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EP0992378A2 (en) * 1998-10-06 2000-04-12 MAGNETI MARELLI CLIMATIZZAZIONE S.p.A. A condenser for air conditioning systems for vehicles, having an integrated accumulator and a subcooling section
DE10060114A1 (en) * 1999-12-09 2001-06-13 Valeo Climatisation Air-conditioning circuit has condenser comprising outlet connected with first branch of internal heat exchanger and outlet connected via pressure reducer with second branch
DE10104374A1 (en) * 2001-02-01 2002-08-08 Behr Gmbh & Co Refrigerant condenser for use in motor vehicle air-conditioning units has integrated collector and pipes fitted on side of pipe/ribbed block designed as condensing area

Also Published As

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EP1684032B1 (en) 2014-10-15
EP1684032A3 (en) 2008-03-19
BRPI0505065A (en) 2006-07-04
DE102004054440A1 (en) 2006-05-11

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