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EP2402694A1 - Condenser, in particular for a car air-conditioning system and heat exchanger equipped with such a condenser - Google Patents

Condenser, in particular for a car air-conditioning system and heat exchanger equipped with such a condenser Download PDF

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Publication number
EP2402694A1
EP2402694A1 EP11170766A EP11170766A EP2402694A1 EP 2402694 A1 EP2402694 A1 EP 2402694A1 EP 11170766 A EP11170766 A EP 11170766A EP 11170766 A EP11170766 A EP 11170766A EP 2402694 A1 EP2402694 A1 EP 2402694A1
Authority
EP
European Patent Office
Prior art keywords
condenser
housing
heat transfer
bundle
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.)
Granted
Application number
EP11170766A
Other languages
German (de)
French (fr)
Other versions
EP2402694B1 (en
Inventor
Georges De Pelsemaeker
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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
Priority claimed from FR1002786A external-priority patent/FR2962205B1/en
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP2402694A1 publication Critical patent/EP2402694A1/en
Application granted granted Critical
Publication of EP2402694B1 publication Critical patent/EP2402694B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
    • 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
    • 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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/067—Details
    • 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
    • F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
    • 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
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0073—Gas coolers
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/02—Reinforcing means for casings

Definitions

  • the invention relates to a condenser, particularly for an air conditioning system of a motor vehicle. It also relates to a device for supporting one or more equipment elements of a front face of a motor vehicle and a heat exchanger equipped with such a condenser.
  • the refrigerant is then passed to a pressure reducer or a calibrated orifice before entering an evaporator where heat exchange between the cooled refrigerant and the pulsed air occurs towards the passenger compartment of the vehicle.
  • the refrigerant, heated at the outlet of the evaporator, is finally returned to the compressor to perform a new thermal cycle.
  • the heat transfer fluid for heat exchange with the refrigerant in the condenser may be outside air.
  • the condenser is placed on the front of the vehicle so as to be traversed by a flow of ambient air produced by the movement of the vehicle or by a fan. This is called an air condenser.
  • the coolant is water with an antifreeze, glycol for example, circulating in a low temperature circuit using an electric pump between the condenser and an external water / air heat exchanger. This is called a water condenser.
  • the invention proposes to overcome these drawbacks and relates to a condenser, in particular for an air-conditioning system of a motor vehicle, comprising a housing and a heat-exchange beam, the condenser being configured to allow a heat exchange between a fluid refrigerant traveling through the beam and a coolant passing through the housing.
  • said housing is made of plastic.
  • the housing for example by molding, by integrating therein several functions such as flanges or others. There is in this way a condenser using a heat transfer fluid that can be liquid having a simplified structure.
  • the invention also relates to a device for supporting one or more elements of equipment of a front face of a motor vehicle, said support device comprising a nozzle capable of accommodating said element or elements and a condenser according to one of any of the preceding claims, the housing of said condenser being attached to said nozzle. According to this embodiment, the condenser is thus integrated into the nozzle.
  • the invention also relates to a heat exchanger comprising a heat exchange fluid exchange bundle with an air flow, an inlet manifold arranged to distribute the coolant in said coolant exchange bundle, an outlet manifold arranged to collect the heat transfer fluid from said heat transfer fluid exchange bundle, said inlet manifold and said outlet manifold each comprising a housing closed by a collector plate, connected to the bundle, said heat exchanger further comprising a condenser as described above, the condenser housing consisting of the housing of the inlet and / or outlet manifold.
  • the condenser is thus integrated in the heat exchanger, the collector advantageously filling the function of condenser housing to guide the heat transfer fluid.
  • the air conditioning and exchange circuits are advantageously merged within the same unit which limits the bulk while maintaining optimum performance.
  • the water condenser is mounted in the front face of the vehicle, in the manner of an air condenser, without however increase the size of the front face.
  • Another advantage of this solution is that it makes it possible to keep air conditioning circuit topologies relatively similar to those with air-cooled condensers of the state of the art. This avoids having to design an entirely new architecture for the use of a water condenser.
  • the collector comprising a U-section housing
  • the refrigerant exchange bundle is mounted integral with a first branch of the U.
  • the refrigerant exchange beam forms a structural assembly with the housing.
  • the casing thus obtained can be assembled in a conventional manner to form the heat exchanger.
  • the refrigerant exchange beam is mounted at a distance from the second leg of the U so as to provide a heat transfer fluid circulation space between the second leg of the U and the refrigerant exchange beam.
  • the heat transfer fluid can circulate in the beam and around the beam so as to promote heat transfer by thermal conduction.
  • the refrigerant exchange bundle includes an inlet manifold and a coolant outlet manifold extending externally to said housing.
  • the refrigerant fluid is advantageously introduced and discharged via the housing which allows to form an air conditioning circuit by connecting to said inlet and outlet piping of refrigerant which are accessible.
  • At least one of said pipes comprises a threaded portion. More preferably, a fixing nut secures said tubing to said housing.
  • the threaded portion can advantageously fulfill a sealing function of sealing the coolant exchange bundle to the housing and allow connection to the air conditioning circuit.
  • the collector comprises a heat transfer fluid duct opening into said volume.
  • the coolant can be introduced / removed from the collector before / after exchange with the refrigerant beam.
  • the condenser is defined by the outlet manifold.
  • the cooling fluid can be cooled with a coolant cooled by the exchanger. This advantageously improves the exchange performance of the refrigerant beam.
  • the heat exchange fluid exchange bundle extends orthogonally to the refrigerant exchange bundle.
  • the exchange performance of the coolant beam is advantageously optimized because of the cross traffic of the two fluids.
  • the heat exchange fluid exchange bundle comprising a plurality of heat transfer fluid circulation tubes
  • the refrigerant exchange bundle extends opposite the mouth of the tubes of the heat transfer fluid exchange bundle.
  • the circulation velocity of the heat transfer fluid is then high when it circulates in the refrigerant beam, which improves the heat transfer by thermal conduction.
  • the invention relates to a condenser, in particular for an air-conditioning system of a motor vehicle, comprising a housing 7, 103 and a heat exchange bundle 5, 105.
  • the condenser is configured to allow a heat exchange between a refrigerant flowing through the beam 5, 105, and a heat transfer fluid passing through the housing 3B, 103.
  • the beam 5, 105 is, for example, housed in the housing 7, 103.
  • the refrigerant may be a fluorinated fluid, especially that known as R134a. It may still be carbon dioxide or the liquid known as 1234YF.
  • the coolant is a liquid, for example, a mixture of water and antifreeze.
  • the housing is made of plastic. It can thus confer many functions given the ease of formatting that presents such a material.
  • the condenser is made in the manifold of a intercalated tube type exchanger.
  • a heat exchanger 1 comprises a heat exchange fluid exchange bundle F2 with an air flow F3, an inlet manifold 3A, called a hot box, arranged to distribute the heat transfer fluid to be cooled F2 in said bundle of exchange of heat transfer fluid 2 and an outlet manifold 3B, called cold box, arranged to collect cooled heat transfer fluid F2 from said heat transfer fluid exchange bundle 2.
  • the outlet manifold 3B further comprises the refrigerant exchange bundle 5 F1 mounted in the volume of the outlet manifold 3B so as to allow cooling of the coolant F1 by cooled coolant F2.
  • the coolant exchange bundle 2 F2 is designated heat transfer beam 2.
  • the refrigerant exchange bundle 5 F1 is designated thereafter coolant beam 5.
  • the heat transfer beam 2 is constituted by a bundle of tubes 20 arranged in parallel on one or more rows, these tubes 20 are intended for the circulation through the exchanger 1 of a coolant F2, such as water with glycol added in the case of engine cooling radiators.
  • the heat transfer fluid F2 is introduced into the circulation tubes 20 via the inlet manifold 3A placed at the inlet of the heat transfer beam 2 and provided with an inlet pipe 11 of the fluid.
  • the outlet manifold 3B of the same type is installed at the exit of the bundle 2 to collect the coolant F2 having passed through the tubes 20 and discharge it out through an outlet pipe 12.
  • the heat transfer beam 2 comprises a single row of flat tubes 20, parallel to each other, extending longitudinally in a direction X.
  • the tubes 20 are flattened of so that the cross section of a tube 20 is in the form of an ellipse whose large diameter extends in a direction Z. In other words, the tubes 20 are flattened in the direction Y.
  • tubes 20 of heat transfer bundle 2 extend along a longitudinal axis X. Thereafter, the terms “left” and “right” are defined relative to the longitudinal axis X which extends from left to right on the figure 1 .
  • the flow of air F3 flows orthogonally to the tubes 20 in the direction Z.
  • upstream and downstream are defined with respect to the Z axis which extends from upstream to downstream on the figure 1 .
  • the flattened shape of the tubes 20 maximizes the exchange surface between the tubes 20 and the flow of air F3 flowing in the direction Z.
  • the tubes 20 of the heat transfer bundle 2 are stacked vertically along the Y axis. Thereafter, the terms “lower” and “upper” are defined relative to the Y axis which extends from the lower part of the heat transfer bundle 5 towards its upper part on the figure 1 as represented on the figure 2 .
  • the vertical and horizontal directions are respectively defined along the X and Y axes as shown in FIG. figure 2 illustrating the exchanger 1 in a vertical mounting position.
  • the beam may be a brazed assembly beam, that is to say a bundle of tubes and interleaves soldered together. It may also be a mechanical assembly beam, that is to say, a bundle of tubes and fins assembled by expansion of the tubes against the fins. The spacers or fins are used to increase the exchange surface with air.
  • the outlet manifold consists of two parts, namely, a housing 7 and a header plate 6.
  • the structural description which follows focuses more particularly on the outlet manifold 3B but it applies similarly to the collector d entry 3A.
  • the collector plate 6, shown on the Figures 3 and 4 is a piece in contact with the heat transfer beam 2 and has orifices 61 for receiving the end of the tubes 20 opening into the outlet manifold 3B.
  • the collector plate 6 has a substantially rectangular shape and extends orthogonally to the direction of the tubes 20 of the heat transfer beam 2. In other words, the collector plate 6 extends parallel to the plane (Y, Z) to close the open face of the housing 7 as will be detailed later.
  • a collector plate 6 is mounted at each end of the heat transfer beam 2 so as to maintain the tubes 20 opening into the collectors 3A, 3B.
  • a seal ensuring the seal between the housing 7 and the heat transfer beam 2 is disposed on the collector plate 6.
  • the seal can do any the surface of the manifold plate 6, orifices 61 being provided in the seal for the sealed passage of the tubes 20.
  • the ends of the tubes 20 protrude inside the manifold 3B.
  • Exceedance is approximately 2 to 3 mm for mechanically assembled tube bundles. It is substantially lower for the brazed bundles in which the tubes are brazed to the header plate.
  • the orifices 61 of the collector plate 6 are oblong so as to allow a sealed assembly with the flattened tubes 20 of the heat transfer beam 2.
  • the housing 7 is in the form of a U-shaped chute, that is to say a parallelepiped having an open face, the header plate 6 closing the U by crimping.
  • the housing 7 defines with its collector plate 6 a volume of fluid circulating at the inlet and at the outlet of the exchanger 1 which is commonly designated collector 3A, 3B.
  • the U-shaped trough whose casing 7 in the form, comprises an upstream vertical wall 71, a vertical bottom wall 72, a downstream vertical wall 73, a lower horizontal wall 74 and an upper horizontal wall 75.
  • the casing 7 of the outlet manifold 3B comprises a coolant pipe F2 designated tubing 12 which extends in the direction Z to allow the evacuation of the heat transfer fluid F2 output of the outlet manifold 3B.
  • the outlet pipe 12 is here formed in the upper part of the downstream vertical wall 73.
  • the housing 7 of the inlet manifold 3A comprises a pipe 11 which extends in the direction Z to allow the introduction of the heat transfer fluid F2 in heat transfer beam 2.
  • the inlet pipe 11 is here formed in the lower part of the inlet manifold 3A.
  • the refrigerant bundle 5 comprises a plurality of stacked tubes 50 distributed in two rows R1, R2.
  • the refrigerant bundle 5 forms a circulation circuit of a refrigerant fluid F1 which enters the refrigerant bundle 5 via a fluid inlet 51 and exits via a fluid outlet 52.
  • the refrigerant fluid F1 exchanges heat by thermal conduction with the heat transfer fluid F2 flowing between the tubes 50 of the bundle 5.
  • the tubes 50 of the refrigerant bundle 5 extend along the longitudinal axis Y, the coolant F2 circulating orthogonally to the tubes 50 in the direction X.
  • the tubes 50 of a row R1, R2 of the refrigerant bundle 5 are stacked according to the Z axis.
  • the refrigerant bundle 5 is mounted in the outlet manifold 3B of the heat exchanger 1 arranged to conduct the heat transfer fluid F2 and to exchange heat with the air flow F3.
  • each exchange unit U1-U3 , U4-U6 comprises a block of tubes 53 whose ends are sealingly attached to collector elements 54 or end caps.
  • a block of tubes 53 comprises a stack of flat tubes 50 inside which the coolant F1 circulates.
  • the tubes 50 are made of metal, most often aluminum alloy, and comprise refrigerant circulation channels F1 in the form of parallel holes (not shown) extending over the entire length of the tubes 50.
  • tube 50 has an outer surface which is in contact with the heat transfer fluid F2 so that the latter brings frigories to the refrigerant fluid F1 by thermal conduction.
  • the tube block ends 53 are sealingly mounted in the collector elements 54 which distribute or collect the refrigerant fluid F1 in the tube block 53.
  • a collector element 54 comprises a cylindrical body extending along the vertical axis Z and has a circular cross section.
  • the body is opened by its upper face as well as by its lower face and further comprises a connection opening formed in the transverse face of said body which opens out along the Y axis to receive a tube block end 53.
  • an exchange unit comprises a block of tubes 53 which is connected at its ends to the collector elements 54.
  • An exchange unit U1-U6 corresponds to an elementary brick of the refrigerant bundle 5, the exchange units U1-U6 are interlocking with each other so as to form a refrigerant circulation circuit F1.
  • the exchange units U1-U6 are stacked vertically along the Z axis in one or more ranks R1, R2 which are then connected to form the bundle 5. Referring to FIG. figure 7 , a line 9 puts in fluid communication the first row R1 with the second rank R2.
  • a rank of the refrigerant bundle 5 may include one or more passes to circulate the coolant F1.
  • the term "pass” is understood to mean one or more exchange units traversed in parallel by the refrigerant fluid F1. So, with reference to the figure 7 , the left row R1 of the beam 5 has a single pass and the straight row R2 has two passes, a separation cap 55 being mounted between two collectors 54 of the right row R2 so as to divert the flow of the refrigerant flow F1. It goes without saying that a rank of exchange beam may comprise more than two passes, for example three.
  • the refrigerant bundle 5 advantageously comprises more exchange units in an upstream pass than in a downstream pass in the direction of the circulation of the coolant F1.
  • the refrigerant F1 is introduced into the bundle 5 from the inlet 51 and exits from the outlet 52 after passing through all the exchange units U1- U6.
  • the exchange units U1-U3 of the left row R1 are connected in parallel and the exchange units U4-U5 of the right row R2 are connected in parallel.
  • the group of exchange units U1-U3, the group of exchange units U4-U5 and the exchange unit U6 are connected in series so that the refrigerating fluid F1 which enters the refrigerant bundle 5 via the inlet 51 passes successively three exchange units (U1-U3) then two (U4-U5) and finally one (U6) to exit via the outlet 52.
  • the refrigerant fluid F1 flows through the refrigerant bundle 5 in three passes spread over two rows R1, R2.
  • a clip 56 extends substantially along the X axis and has two curved portions intended to respectively hold the bodies of the collector elements 54 of the exchange units of the left row R1 and the right row R2, the curved parts being connected by a tenon , extending substantially rectilinearly.
  • the inlet and outlet of the refrigerant fluid F1 of the refrigerant bundle 5 are respectively in the form of cylindrical inlet pipes 51 and outlet 52 extending in the Z direction and whose free end is threaded to allow assembly of the refrigerant bundle 5 in the outlet manifold 3B.
  • the refrigerant bundle 5 is mounted integral with the housing 7 in the volume of the outlet manifold 3B so that the cylindrical inlet 51 and outlet 52 of the refrigerant bundle 5 respectively extend through an inlet port 76 and an outlet 77 formed in the downstream vertical wall 73 as shown in FIG. figure 8A .
  • Locking nuts 8 are fastened to the free ends of the cylindrical inlet and outlet pipes 51 and 52 so as to secure the refrigerant bundle 5 to the housing 7.
  • the refrigerant bundle 5 is introduced into the case 7 by its open face by moving it in the direction X.
  • the size of the refrigerant bundle 5 is smaller than the size of the case 7 in the direction X so as to allow the introduction of the refrigerant bundle 5 with its cylindrical inlet 51 and outlet 52 pipes into the housing 7.
  • the refrigerant bundle 5 is displaced in the Z direction so as to the cylindrical pipes 51, 52 protrude through the downstream vertical wall 73 of the housing 7 as shown in FIG. Figure 8B .
  • the securing nuts 8 are then screwed to the threaded ends of the cylindrical tubes 51, 52 as shown in FIG. Figure 8C to ensure the mechanical connection between the refrigerant bundle 5 and the housing 7.
  • the tubes 50 of the refrigerant bundle 5 extend into the lower part of the outlet manifold 3B.
  • the refrigerant bundle 5 is vertically offset from the outlet pipe 12 of the exchanger 1.
  • the tubes 50 of the refrigerant bundle 5 are stacked in the Z direction so that a tube 20 of the heat transfer bundle 2, which has a large diameter oblong section extending in the Z direction, sends the stream coolant F2 that it leads on all the stacked tubes of the refrigerant bundle 5.
  • the heat transfer beam 2 extends orthogonally to the refrigerant bundle 5, the refrigerant bundle 5 extending opposite the mouth tubes 20 of the heat transfer bundle 2.
  • the refrigerant bundle 5 is mounted at a distance from the upstream vertical wall 71 so as to provide a space "d" for the circulation of the heat transfer fluid F2 between the upstream vertical wall 71 and the refrigerant bundle 5.
  • the heat exchanger 1 conducts the heat transfer fluid F2 from its inlet manifold 3A to the outlet manifold 3B and exchanges the heat by thermal conduction with the air flow F3 when the heat transfer fluid F2 passes through the heat transfer beam 2 .
  • the tubes 20 of the heat transfer beam 2 inject into the outlet manifold 3B the cooled heat transfer stream F2 which circulates, in the lower part of the casing 3B, through the refrigerant bundle 5 and which flows, in the upper part of the casing 3B, directly towards the the outlet pipe 12.
  • the coolant F2 flows between the tubes 50 of the refrigerant bundle 5 to cool the refrigerant fluid F1 which flows in passes in said coolant bundle 5.
  • the heat transfer fluid F2 is conveyed to the outlet pipe 12 of the exchanger 1.
  • the refrigerant fluid F1 is in turn introduced and discharged from the refrigerant bundle 5 by the cylindrical pipes 51, 52 which open from the downstream vertical wall 73.
  • all the interfaces of the heat exchanger 1 and its integrated cooling beam 5 are arranged on the downstream face of the exchanger 1 which facilitates the integration of said exchanger 1 in a motor vehicle and limits its size.
  • the cylindrical outlet pipe 52 of the refrigerant bundle 5 is disposed close to the outlet pipe 12 of the heat exchanger 1 but it goes without saying that the refrigerant bundle 5 could also be mounted in the opposite direction with its cylindrical inlet pipe 51 disposed near the outlet pipe 12 of the heat exchanger 1.
  • a heat exchanger 1 has been presented with the refrigerant bundle 5 integrated in its outlet manifold 3B but it could also be mounted in the inlet manifold 3A.
  • the beam 5 could have another structure.
  • the condenser according to the invention may also be independent.
  • Its housing 103 is configured, for example, to force a circulation of the coolant through the beam 105, visible at a cut-off area at Figures 9 and 10 .
  • the housing has, in particular, a first zone 107 in contact with the beam and at least a second zone 109 at a distance from the beam to define collectors 111a, 111b for the heat transfer fluid so that said heat transfer fluid passes a heat transfer fluid inlet 113a, communicating with a manifold 111a, to an outlet 113b of heat transfer fluid, communicating with another 111b collectors, through a heat transfer fluid flow path through said beam 105 at said first zone 107.
  • the beam 105 comprises a stack of tubes 115 opening at their end in collector elements 117 superimposed.
  • the collector elements 117 communicate with each other by means of orifices, not shown, for defining collectors for the refrigerant, on either side of the tubes 115.
  • the refrigerant circulates in the tubes 115, in particular provided multichannel, and the heat transfer fluid circulates between the tubes 115.
  • the beam 105 will define, for example, a first path for the refrigerant and a second path for the heat transfer fluid.
  • the tubes 115 are in contact with the housing 103 while the housing 103 away from the beam at the collector elements 117.
  • the collectors 111 a, 111 b for the heat transfer fluid are located at the level of said collecting elements 117.
  • the heat transfer fluid can thus be distributed between the tubes 115 and then travel the beam between said collectors 111a, 111b by being channeled between said tubes 115. It is thus avoided that a portion of the heat transfer fluid passes directly from the inlet 113a at the outlet 113b of the exchanger without exchanging with the refrigerant.
  • said first zone 107 is provided at the level of the tubes 115 and said second zone 109 is provided at the level of the collector elements 117.
  • Said housing 103 has, for example, inlet pipes 119a and / or outlet 119b for the heat transfer fluid, made of material. They open into the collectors 111a, 111b.
  • Said housing 103 may also have reinforcing ribs 121, made of material.
  • Said ribs 121 have, for example, a cross configuration.
  • the housing 103 has a substantially parallelepipedal shape and the ribs 121 are parallel to the edges of the housing.
  • Said housing 103 may also have fixing flanges 123 of the condenser to a support, said flanges being made of material.
  • Said fastening flanges 123 are located, for example, at one or more reinforcing ribs 121, in particular, between two said ribs 121.
  • the housing 103 is closed, for example, by a cover 125, in particular made of metal, which can be crimped on this one.
  • the cover defines, for example, an end plate of the beam 105.
  • the beam 105 is integral with the cover 125.
  • the heat exchange bundle 105 has, in particular, inlet-outlet pipes 127a, 127b opening through the cover 125.
  • these pipes 127a, 127b communicate with a bottle 129 which can be carried by the cover 125.
  • a bottle 129 which can be carried by the cover 125.
  • This is a bottle used, in a manner known to those skilled in the art, to define a reserve volume of refrigerant. It may also be used to filter it and / or ensure that it is placed in contact with a desiccant placed inside it.
  • Said bottle can be further configured to allow phase separation, to eliminate any parts still vapor phase of the refrigerant at the outlet of the condenser before it continues its journey.
  • the refrigerant thus enters the condenser, through the inlet manifold 127a, passes through the collector elements 117 located at a first end of the tubes 115, enters the tubes 115 that it travels, opens into the collector elements 117 located at the other end of the tubes 115 and then exit the condenser through the outlet pipe 127b.
  • the condenser is fixed, for example, to a nozzle of a support device of one or more equipment elements of a front face of a motor vehicle, said nozzle being provided capable of accommodating said one or more equipment elements.
  • a nozzle incorporating a stator of a ventilation device.
  • Said nozzle is also made of plastic, the fixing of the condenser is simplified.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The condenser has a plastic housing (103) and a heat exchange bundle (105), where the condenser allows heat exchange between coolant e.g. fluorinated fluid, traveling the bundle and heat transfer fluid e.g. water and antifreeze agent mixture, crossing the housing. The housing forces circulation of the heat transfer fluid traversing the bundle. The housing comprises zones (107, 109) respectively in contact with and remote from the bundle to define manifolds (111a, 111b) for the heat transfer fluid such that the fluid passes from an inlet (113a) to an outlet (113b) via a fluid circulation path. An independent claim is also included for a heat exchanger comprising a condenser.

Description

L'invention concerne un condenseur, notamment pour système de climatisation d'un véhicule automobile. Elle concerne également un dispositif de support d'un ou plusieurs éléments d'équipement d'une face avant de véhicule automobile et un échangeur de chaleur équipé d'un tel condenseur.The invention relates to a condenser, particularly for an air conditioning system of a motor vehicle. It also relates to a device for supporting one or more equipment elements of a front face of a motor vehicle and a heat exchanger equipped with such a condenser.

On connaît aujourd'hui des circuits de climatisation pour véhicule automobiles comprenant un compresseur de fluide réfrigérant, qui peut être par exemple du dioxyde de carbone CO2 supercritique ou le réfrigérant fluoré connu sous la référence R134a ou encore le fluide référencé 1234YF. En aval du compresseur, le fluide réfrigérant sous pression traverse un échangeur de chaleur appelé « refroidisseur de gaz » (« Gas Cooler ») pour le dioxyde de carbone ou « condenseur » pour le R134a car, dans ce cas, le réfrigérant initialement en phase gazeuse sort du condenseur en phase liquide. Pour simplifier le vocabulaire, on utilisera dans la suite le seul terme de « condenseur » pour désigner ce type d'échangeur de chaleur.Motor vehicle air conditioning circuits are known today comprising a refrigerant compressor, which may for example be supercritical carbon dioxide CO 2 or the fluorinated refrigerant known under the reference R134a or the fluid referenced 1234YF. Downstream of the compressor, the pressurized refrigerant passes through a heat exchanger called "gas cooler" for carbon dioxide or "condenser" for R134a because, in this case, the refrigerant initially in phase gas flows out of the condenser in the liquid phase. To simplify the vocabulary, we will use in the following the only term "condenser" to designate this type of heat exchanger.

Le fluide réfrigérant est ensuite conduit vers un détendeur ou un orifice calibré avant de pénétrer dans un évaporateur où se produit alors l'échange de chaleur entre le fluide réfrigérant refroidi et de l'air pulsé en direction de l'habitacle du véhicule. Le fluide réfrigérant, réchauffé en sortie de l'évaporateur, est finalement retourné au compresseur pour effectuer un nouveau cycle thermique.The refrigerant is then passed to a pressure reducer or a calibrated orifice before entering an evaporator where heat exchange between the cooled refrigerant and the pulsed air occurs towards the passenger compartment of the vehicle. The refrigerant, heated at the outlet of the evaporator, is finally returned to the compressor to perform a new thermal cycle.

Le fluide caloporteur d'échange de chaleur avec le fluide réfrigérant dans le condenseur peut être de l'air extérieur. Dans ce cas, le condenseur est placé en face avant du véhicule de manière à être traversé par un flux d'air ambiant produit par le déplacement du véhicule ou par un ventilateur. On parle alors de condenseur à air.The heat transfer fluid for heat exchange with the refrigerant in the condenser may be outside air. In this case, the condenser is placed on the front of the vehicle so as to be traversed by a flow of ambient air produced by the movement of the vehicle or by a fan. This is called an air condenser.

Pour différentes raisons, notamment d'encombrement de la face avant du véhicule liées en particulier au problème de la sécurité des piétons, il est avantageux de ne plus employer de condenseur à air. Dans cette configuration, le fluide caloporteur est de l'eau additionnée d'un antigel, glycol par exemple, circulant dans un circuit basse température à l'aide d'une pompe électrique entre le condenseur et un échangeur de chaleur eau/air extérieur. On parle alors de condenseur à eau.For various reasons, including congestion of the front face of the vehicle related in particular to the problem of pedestrian safety, it is advantageous not to more use of air condenser. In this configuration, the coolant is water with an antifreeze, glycol for example, circulating in a low temperature circuit using an electric pump between the condenser and an external water / air heat exchanger. This is called a water condenser.

De nombreuses configurations de condenseurs à eau ont été déjà été proposées. Ils ont une structure entièrement métallique. Un premier inconvénient rencontré avec une telle structure est qu'elle nécessite l'utilisation de brides de fixation et d'entrée/sortie de fluide, rapportées. Un autre inconvénient est qu'elle nécessite l'utilisation de pièces embouties dont la précision des côtes est difficilement maîtrisable. Elle présente ainsi des difficultés d'assemblage qui joue sur leur fiabilité et son coût de revient.Many configurations of water condensers have already been proposed. They have an all-metal structure. A first drawback encountered with such a structure is that it requires the use of fastening flanges and fluid inlet / outlet, reported. Another disadvantage is that it requires the use of stamped parts whose accuracy of the ribs is difficult to control. It thus presents difficulties of assembly which plays on their reliability and its cost price.

L'invention se propose de pallier ces inconvénients et concerne un condenseur, notamment pour système de climatisation d'un véhicule automobile, comprenant un boîtier et un faisceau d'échange de chaleur, le condenseur étant configuré pour permettre un échange de chaleur entre un fluide frigorigène parcourant le faisceau et un fluide caloporteur traversant le boîtier. Selon l'invention, ledit boîtier est en plastique.The invention proposes to overcome these drawbacks and relates to a condenser, in particular for an air-conditioning system of a motor vehicle, comprising a housing and a heat-exchange beam, the condenser being configured to allow a heat exchange between a fluid refrigerant traveling through the beam and a coolant passing through the housing. According to the invention, said housing is made of plastic.

On peut ainsi réaliser le boîtier, par exemple par moulage, en intégrant dans celui-ci plusieurs fonctions telles que brides ou autres. On dispose de la sorte d'un condenseur utilisant un fluide caloporteur pouvant être liquide présentant une structure simplifiée.It is thus possible to produce the housing, for example by molding, by integrating therein several functions such as flanges or others. There is in this way a condenser using a heat transfer fluid that can be liquid having a simplified structure.

Selon différents modes de réalisation :

  • le boitier est configuré pour forcer une circulation du fluide caloporteur à travers le faisceau ;
  • le boîtier présente une première zone au contact du faisceau et au moins une seconde zone à distance du faisceau pour définir des collecteurs pour le fluide caloporteur de façon à ce que ledit fluide caloporteur passe d'une entrée de fluide caloporteur, communiquant avec l'un des collecteurs, à une sortie de fluide caloporteur, communiquant avec un autre des collecteurs, en passant par un trajet de circulation du fluide caloporteur à travers ledit faisceau au niveau de ladite première zone ;
  • ledit boîtier présente des tubulures d'entrée et/ou de sortie pour le fluide caloporteur, des nervures de renfort et/ou des brides de fixation du condenseur à un support, issues de matière;
  • lesdites brides de fixations sont situées au niveau d'une ou plusieurs nervures de renforts.
According to different embodiments:
  • the housing is configured to force a circulation of heat transfer fluid through the beam;
  • the housing has a first zone in contact with the beam and at least one second zone at a distance from the beam to define manifolds for the heat transfer fluid so that said heat transfer fluid passes from a heat transfer fluid inlet, communicating with the one collectors, at a fluid outlet coolant, communicating with another of the collectors, through a flow path of the heat transfer fluid through said beam at said first zone;
  • said casing has inlet and / or outlet nozzles for the heat transfer fluid, reinforcement ribs and / or fixing flanges of the condenser to a support, made of material;
  • said fastening flanges are located at one or more reinforcing ribs.

L'invention concerne aussi un dispositif de support d'un ou plusieurs éléments d'équipement d'une face avant de véhicule automobile, ledit dispositif de support comprenant une buse apte, à accueillir le ou lesdits éléments, et un condenseur selon l'une quelconque des revendications précédentes, le boîtier dudit condenseur étant fixé à ladite buse. Selon ce mode de mise en oeuvre, le condenseur est ainsi intégré à la buse.The invention also relates to a device for supporting one or more elements of equipment of a front face of a motor vehicle, said support device comprising a nozzle capable of accommodating said element or elements and a condenser according to one of any of the preceding claims, the housing of said condenser being attached to said nozzle. According to this embodiment, the condenser is thus integrated into the nozzle.

L'invention concerne encore un échangeur de chaleur comprenant un faisceau d'échange de fluide caloporteur avec un flux d'air, un collecteur d'entrée agencé pour distribuer le fluide caloporteur dans ledit faisceau d'échange de fluide caloporteur, un collecteur de sortie agencé pour collecter le fluide caloporteur issu dudit faisceau d'échange de fluide caloporteur, ledit collecteur d'entrée et ledit collecteur de sortie comprenant chacun un boîtier fermé par une plaque collectrice, reliée au faisceau, ledit échangeur comprenant en outre un condenseur tel que décrit plus haut, le boîtier du condenseur étant constitué du boîtier du collecteur d'entrée et/ou de sortie.The invention also relates to a heat exchanger comprising a heat exchange fluid exchange bundle with an air flow, an inlet manifold arranged to distribute the coolant in said coolant exchange bundle, an outlet manifold arranged to collect the heat transfer fluid from said heat transfer fluid exchange bundle, said inlet manifold and said outlet manifold each comprising a housing closed by a collector plate, connected to the bundle, said heat exchanger further comprising a condenser as described above, the condenser housing consisting of the housing of the inlet and / or outlet manifold.

Selon ce mode de mise en oeuvre, le condenseur est ainsi intégré à l'échangeur de chaleur, le collecteur remplissant avantageusement la fonction de carter de condenseur pour guider le fluide caloporteur. Les circuits de climatisation et d'échange sont avantageusement fusionnés au sein d'une même unité ce qui limite l'encombrement tout en conservant des performances optimales.According to this embodiment, the condenser is thus integrated in the heat exchanger, the collector advantageously filling the function of condenser housing to guide the heat transfer fluid. The air conditioning and exchange circuits are advantageously merged within the same unit which limits the bulk while maintaining optimum performance.

Dans le cas d'un échangeur se présentant sous la forme d'un radiateur et d'un condenseur à eau, le condenseur à eau est monté dans la face avant du véhicule, à la manière d'un condenseur à air, sans pour autant augmenter l'encombrement en face avant. Un autre avantage de cette solution est qu'elle permet de garder des topologies de circuit de climatisation relativement proches de celles avec condenseur à air de l'état de la technique. On évite ainsi d'avoir à concevoir une architecture entièrement nouvelle pour l'utilisation d'un condenseur à eau.In the case of an exchanger in the form of a radiator and a water condenser, the water condenser is mounted in the front face of the vehicle, in the manner of an air condenser, without however increase the size of the front face. Another advantage of this solution is that it makes it possible to keep air conditioning circuit topologies relatively similar to those with air-cooled condensers of the state of the art. This avoids having to design an entirely new architecture for the use of a water condenser.

De préférence, le collecteur comportant un boîtier de section en U, le faisceau d'échange de fluide réfrigérant est monté solidaire d'une première branche du U. Ainsi, le faisceau d'échange de fluide réfrigérant forme un ensemble structural avec le boîtier. Le boîtier ainsi obtenu peut être assemblé de manière conventionnelle pour former l'échangeur de chaleur.Preferably, the collector comprising a U-section housing, the refrigerant exchange bundle is mounted integral with a first branch of the U. Thus, the refrigerant exchange beam forms a structural assembly with the housing. The casing thus obtained can be assembled in a conventional manner to form the heat exchanger.

De préférence encore, le faisceau d'échange de fluide réfrigérant est monté à distance de la deuxième branche du U de manière à ménager un espace de circulation du fluide caloporteur entre la deuxième branche du U et le faisceau d'échange de fluide réfrigérant. Ainsi, le fluide caloporteur peut circuler dans le faisceau et autour du faisceau de manière à favoriser le transfert de chaleur par conduction thermique.More preferably, the refrigerant exchange beam is mounted at a distance from the second leg of the U so as to provide a heat transfer fluid circulation space between the second leg of the U and the refrigerant exchange beam. Thus, the heat transfer fluid can circulate in the beam and around the beam so as to promote heat transfer by thermal conduction.

Selon un aspect de l'invention, le faisceau d'échange de fluide réfrigérant comporte une tubulure d'entrée et une tubulure de sortie de fluide réfrigérant s'étendant extérieurement audit boîtier. Le fluide réfrigérant est avantageusement introduit et évacué via le boîtier ce qui permet de former un circuit de climatisation en se connectant auxdites tubulure d'entrée et de sortie de fluide réfrigérant qui sont accessibles.According to one aspect of the invention, the refrigerant exchange bundle includes an inlet manifold and a coolant outlet manifold extending externally to said housing. The refrigerant fluid is advantageously introduced and discharged via the housing which allows to form an air conditioning circuit by connecting to said inlet and outlet piping of refrigerant which are accessible.

De préférence, au moins une desdites tubulures comporte une portion filetée. De préférence encore, un écrou de fixation solidarise ladite tubulure audit boîtier. La portion filetée peut remplir avantageusement une fonction de solidarisation étanche du faisceau d'échange de fluide réfrigérant au boîtier et permettre la connexion au circuit de climatisation.Preferably, at least one of said pipes comprises a threaded portion. More preferably, a fixing nut secures said tubing to said housing. The threaded portion can advantageously fulfill a sealing function of sealing the coolant exchange bundle to the housing and allow connection to the air conditioning circuit.

Selon un aspect de l'invention, le collecteur comporte une canalisation de fluide caloporteur débouchant dans ledit volume. Le fluide caloporteur peut ainsi être introduit/évacué du collecteur avant/après échange avec le faisceau de fluide réfrigérant.According to one aspect of the invention, the collector comprises a heat transfer fluid duct opening into said volume. The coolant can be introduced / removed from the collector before / after exchange with the refrigerant beam.

Selon un aspect de l'invention le condenseur est défini par le collecteur de sortie. Dans cette configuration, on peut refroidir le fluide réfrigérant avec un fluide caloporteur refroidi par l'échangeur. Cela améliore de manière avantageuse les performances d'échange du faisceau de fluide réfrigérant.According to one aspect of the invention the condenser is defined by the outlet manifold. In this configuration, the cooling fluid can be cooled with a coolant cooled by the exchanger. This advantageously improves the exchange performance of the refrigerant beam.

De préférence, le faisceau d'échange de fluide caloporteur s'étend orthogonalement au faisceau d'échange de fluide réfrigérant. Les performances d'échange du faisceau de fluide réfrigérant sont avantageusement optimisées du fait de la circulation croisée des deux fluides.Preferably, the heat exchange fluid exchange bundle extends orthogonally to the refrigerant exchange bundle. The exchange performance of the coolant beam is advantageously optimized because of the cross traffic of the two fluids.

De préférence, le faisceau d'échange de fluide caloporteur comportant une pluralité de tubes de circulation de fluide caloporteur, le faisceau d'échange de fluide réfrigérant s'étend en regard de l'embouchure des tubes du faisceau d'échange de fluide caloporteur. La vitesse de circulation du fluide caloporteur est alors élevée lorsqu'il circule dans le faisceau réfrigérant ce qui améliore le transfert de chaleur par conduction thermique.Preferably, the heat exchange fluid exchange bundle comprising a plurality of heat transfer fluid circulation tubes, the refrigerant exchange bundle extends opposite the mouth of the tubes of the heat transfer fluid exchange bundle. The circulation velocity of the heat transfer fluid is then high when it circulates in the refrigerant beam, which improves the heat transfer by thermal conduction.

Dans la description détaillée qui suit, faite seulement à titre d'exemple, on se réfère aux dessins annexés, sur lesquels :

  • la figure 1 est une vue simplifiée en perspective d'un échangeur de chaleur muni d'un exemple de réalisation d'un condenseur selon l'invention ;
  • la figure 2 est une vue schématique en coupe de l'échangeur de chaleur de la figure 1 ;
  • la figure 3 est une vue schématique en coupe transversale de côté du collecteur de sortie de l'échangeur de chaleur de la figure 1 fermé par une plaque collectrice et dans lequel est monté un faisceau parcouru par un fluide réfrigérant ;
  • la figure 4 est une vue schématique de face de la plaque collectrice du collecteur de la figure 3 ;
  • la figure 5 est une vue schématique de face du collecteur de sortie ;
  • la figure 6 est une vue schématique de la circulation du fluide réfrigérant ;
  • la figure 7 est une vue éclatée du faisceau parcouru par un fluide réfrigérant ;
  • la figure 8A est une vue en perspective de l'étape d'introduction du faisceau parcouru par un fluide réfrigérant dans le collecteur de sortie ;
  • la figure 8B est une vue en perspective de l'étape de positionnement du faisceau parcouru par un fluide réfrigérant dans le collecteur de sortie; et
  • la figure 8C est une vue en perspective de l'étape de solidarisation du faisceau parcouru par un fluide réfrigérant au collecteur de sortie,
  • la figure 9 illustre en perspective un autre exemple de réalisation du condenseur selon l'invention,
  • la figure 10 est une vue de coté du condenseur selon la figure 9,
  • la figure 11 est une vue de coupe effectuée selon la ligne XI-XI de la figure 10,
  • la figure 12 est une vue de coupe effectuée selon la ligne XII-XII de la figure 10.
In the detailed description which follows, made only by way of example, reference is made to the appended drawings, in which:
  • the figure 1 is a simplified perspective view of a heat exchanger provided with an embodiment of a condenser according to the invention;
  • the figure 2 is a schematic sectional view of the heat exchanger of the figure 1 ;
  • the figure 3 is a schematic cross-sectional side view of the outlet manifold of the heat exchanger of the figure 1 closed by a collector plate and in which is mounted a bundle traversed by a refrigerant fluid;
  • the figure 4 is a schematic front view of the header plate of the collector of the figure 3 ;
  • the figure 5 is a schematic front view of the outlet manifold;
  • the figure 6 is a schematic view of the circulation of the refrigerant fluid;
  • the figure 7 is an exploded view of the beam traversed by a refrigerant fluid;
  • the figure 8A is a perspective view of the step of introducing the beam traversed by a refrigerant fluid into the outlet manifold;
  • the Figure 8B is a perspective view of the positioning step of the beam traveled by a refrigerant in the outlet manifold; and
  • the Figure 8C is a perspective view of the step of securing the bundle traversed by a refrigerant fluid to the outlet manifold,
  • the figure 9 illustrates in perspective another embodiment of the condenser according to the invention,
  • the figure 10 is a side view of the condenser according to the figure 9 ,
  • the figure 11 is a sectional view taken along line XI-XI of the figure 10 ,
  • the figure 12 is a sectional view taken along line XII-XII of the figure 10 .

Comme illustré aux figures 1 à 3, 5, 8 et 9 à 13, l'invention concerne un condenseur, notamment pour système de climatisation d'un véhicule automobile, comprenant un boîtier 7, 103 et un faisceau d'échange de chaleur 5, 105.As illustrated in Figures 1 to 3 , 5 , 8 and 9 to 13 The invention relates to a condenser, in particular for an air-conditioning system of a motor vehicle, comprising a housing 7, 103 and a heat exchange bundle 5, 105.

Le condenseur est configuré pour permettre un échange de chaleur entre un fluide frigorigène parcourant le faisceau 5, 105, et un fluide caloporteur traversant le boîtier 3B, 103. Le faisceau 5, 105 est, par exemple, logé dans le boîtier 7, 103.The condenser is configured to allow a heat exchange between a refrigerant flowing through the beam 5, 105, and a heat transfer fluid passing through the housing 3B, 103. The beam 5, 105 is, for example, housed in the housing 7, 103.

Le fluide frigorigène pourra être un fluide fluoré, notamment celui connu sous le nom de R134a. Il pourra encore s'agir de dioxyde de carbone ou du liquide connu sous le nom de 1234YF. Le fluide caloporteur est un liquide, par exemple, un mélange d'eau et d'antigel.The refrigerant may be a fluorinated fluid, especially that known as R134a. It may still be carbon dioxide or the liquid known as 1234YF. The coolant is a liquid, for example, a mixture of water and antifreeze.

Selon l'invention, le boîtier est en plastique. On peut ainsi lui conférer de nombreuses fonctions compte-tenu de la facilité de mise en forme que présente une telle matière.According to the invention, the housing is made of plastic. It can thus confer many functions given the ease of formatting that presents such a material.

Selon le mode de réalisation des figures 1 à 8, le condenseur est réalisé dans le collecteur d'un échangeur de type tubes intercalaires.According to the embodiment of Figures 1 to 8 , the condenser is made in the manifold of a intercalated tube type exchanger.

Plus précisément, en référence à la figure 1, un échangeur de chaleur 1 comprend un faisceau 2 d'échange de fluide caloporteur F2 avec un flux d'air F3, un collecteur d'entrée 3A, appelé boîte chaude, agencé pour distribuer le fluide caloporteur à refroidir F2 dans ledit faisceau d'échange de fluide caloporteur 2 et un collecteur de sortie 3B, appelé boîte froide, agencé pour collecter le fluide caloporteur refroidi F2 issu dudit faisceau d'échange de fluide caloporteur 2.More specifically, with reference to the figure 1 a heat exchanger 1 comprises a heat exchange fluid exchange bundle F2 with an air flow F3, an inlet manifold 3A, called a hot box, arranged to distribute the heat transfer fluid to be cooled F2 in said bundle of exchange of heat transfer fluid 2 and an outlet manifold 3B, called cold box, arranged to collect cooled heat transfer fluid F2 from said heat transfer fluid exchange bundle 2.

Dans cette forme de réalisation, le collecteur de sortie 3B comprend en outre le faisceau 5 d'échange du fluide réfrigérant F1 monté dans le volume du collecteur de sortie 3B de manière à permettre le refroidissement du fluide réfrigérant F1 par le fluide caloporteur refroidi F2.In this embodiment, the outlet manifold 3B further comprises the refrigerant exchange bundle 5 F1 mounted in the volume of the outlet manifold 3B so as to allow cooling of the coolant F1 by cooled coolant F2.

Par la suite, le faisceau 2 d'échange de fluide caloporteur F2 est désigné faisceau caloporteur 2. De même, le faisceau 5 d'échange de fluide réfrigérant F1 est désigné par la suite faisceau réfrigérant 5.Subsequently, the coolant exchange bundle 2 F2 is designated heat transfer beam 2. Similarly, the refrigerant exchange bundle 5 F1 is designated thereafter coolant beam 5.

Le faisceau caloporteur 2 est constitué par un faisceau de tubes 20 disposés parallèlement sur une ou plusieurs rangées, ces tubes 20 sont destinés à la circulation à travers l'échangeur 1 d'un fluide caloporteur F2, tel que de l'eau additionnée de glycol dans le cas des radiateurs de refroidissement de moteurs. Le fluide caloporteur F2 est introduit dans les tubes de circulation 20 par l'intermédiaire du collecteur d'entrée 3A placé à l'entrée du faisceau caloporteur 2 et muni d'une tubulure d'arrivée 11 du fluide. Le collecteur de sortie 3B du même type est installé à la sortie du faisceau 2 pour recueillir le fluide caloporteur F2 ayant traversé les tubes 20 et l'évacuer à l'extérieur à travers une tubulure de sortie 12.The heat transfer beam 2 is constituted by a bundle of tubes 20 arranged in parallel on one or more rows, these tubes 20 are intended for the circulation through the exchanger 1 of a coolant F2, such as water with glycol added in the case of engine cooling radiators. The heat transfer fluid F2 is introduced into the circulation tubes 20 via the inlet manifold 3A placed at the inlet of the heat transfer beam 2 and provided with an inlet pipe 11 of the fluid. The outlet manifold 3B of the same type is installed at the exit of the bundle 2 to collect the coolant F2 having passed through the tubes 20 and discharge it out through an outlet pipe 12.

Dans cet exemple, en référence aux figures 1 et 2, le faisceau caloporteur 2 comporte une unique rangée de tubes plats 20, parallèles les uns aux autres, s'étendant longitudinalement selon une direction X. Les tubes 20 sont aplatis de manière à ce que la section transversale d'un tube 20 se présente sous la forme d'une ellipse dont le grand diamètre s'étend selon une direction Z. Autrement dit, les tubes 20 sont aplatis selon la direction Y.In this example, with reference to Figures 1 and 2 , the heat transfer beam 2 comprises a single row of flat tubes 20, parallel to each other, extending longitudinally in a direction X. The tubes 20 are flattened of so that the cross section of a tube 20 is in the form of an ellipse whose large diameter extends in a direction Z. In other words, the tubes 20 are flattened in the direction Y.

Par la suite, les éléments du faisceau caloporteur 2 sont repérés dans un repère orthogonal (X, Y, Z). En référence à la figure 1, les tubes 20 du faisceau caloporteur 2 s'étendent selon un axe longitudinal X. Par la suite, les termes « gauche » et « droite » sont définis par rapport à l'axe longitudinal X qui s'étend de la gauche vers la droite sur la figure 1. Le flux d'air F3 circule orthogonalement aux tubes 20 selon la direction Z. Par la suite, les termes « amont » et « aval » sont définis par rapport à l'axe Z qui s'étend de l'amont vers l'aval sur la figure 1. Ainsi, la forme aplatie des tubes 20 permet de maximiser la surface d'échange entre les tubes 20 et le flux d'air F3 circulant dans la direction Z.Subsequently, the elements of the heat transfer beam 2 are marked in an orthogonal reference (X, Y, Z). With reference to the figure 1 , tubes 20 of heat transfer bundle 2 extend along a longitudinal axis X. Thereafter, the terms "left" and "right" are defined relative to the longitudinal axis X which extends from left to right on the figure 1 . The flow of air F3 flows orthogonally to the tubes 20 in the direction Z. Thereafter, the terms "upstream" and "downstream" are defined with respect to the Z axis which extends from upstream to downstream on the figure 1 . Thus, the flattened shape of the tubes 20 maximizes the exchange surface between the tubes 20 and the flow of air F3 flowing in the direction Z.

Les tubes 20 du faisceau caloporteur 2 sont empilés verticalement selon l'axe Y. Par la suite, les termes « inférieur » et « supérieur » sont définis par rapport à l'axe Y qui s'étend de la partie inférieure du faisceau caloporteur 5 vers sa partie supérieure sur la figure 1 comme représenté sur la figure 2. Les directions verticale et horizontale sont définies respectivement selon les axes X et Y comme représentés sur la figure 2 illustrant l'échangeur 1 dans une position de montage verticale.The tubes 20 of the heat transfer bundle 2 are stacked vertically along the Y axis. Thereafter, the terms "lower" and "upper" are defined relative to the Y axis which extends from the lower part of the heat transfer bundle 5 towards its upper part on the figure 1 as represented on the figure 2 . The vertical and horizontal directions are respectively defined along the X and Y axes as shown in FIG. figure 2 illustrating the exchanger 1 in a vertical mounting position.

Le faisceau pourra être un faisceau à assemblage brasé, c'est-à-dire un faisceau de tubes et d'intercalaires brasés ensemble. Il pourra aussi s'agir d'un faisceau à assemblage mécanique, c'est-à-dire, un faisceau de tubes et d'ailettes assemblés par expansion des tubes contre les ailettes. Les intercalaires ou ailettes servent à augmenter la surface d'échange avec l'air.The beam may be a brazed assembly beam, that is to say a bundle of tubes and interleaves soldered together. It may also be a mechanical assembly beam, that is to say, a bundle of tubes and fins assembled by expansion of the tubes against the fins. The spacers or fins are used to increase the exchange surface with air.

En référence maintenant à la figure 3, le collecteur de sortie 3B est constitué de deux parties, à savoir, un boîtier 7 et une plaque collectrice 6. La description structurelle qui suit s'attache plus particulièrement au collecteur de sortie 3B mais elle s'applique de manière similaire au collecteur d'entrée 3A.Referring now to the figure 3 3B the outlet manifold consists of two parts, namely, a housing 7 and a header plate 6. The structural description which follows focuses more particularly on the outlet manifold 3B but it applies similarly to the collector d entry 3A.

La plaque collectrice 6, représentée sur les figures 3 et 4, est une pièce en contact avec le faisceau caloporteur 2 et comporte des orifices 61 destinés à recevoir l'extrémité des tubes 20 débouchant dans le collecteur de sortie 3B. La plaque collectrice 6 possède une forme sensiblement rectangulaire et s'étend orthogonalement à la direction des tubes 20 du faisceau caloporteur 2. Autrement dit, la plaque collectrice 6 s'étend parallèlement au plan (Y, Z) pour fermer la face ouverte du boîtier 7 comme cela sera détaillé par la suite.The collector plate 6, shown on the Figures 3 and 4 , is a piece in contact with the heat transfer beam 2 and has orifices 61 for receiving the end of the tubes 20 opening into the outlet manifold 3B. The collector plate 6 has a substantially rectangular shape and extends orthogonally to the direction of the tubes 20 of the heat transfer beam 2. In other words, the collector plate 6 extends parallel to the plane (Y, Z) to close the open face of the housing 7 as will be detailed later.

Comme représenté sur la figure 2, une plaque collectrice 6 est montée à chacune des extrémités du faisceau caloporteur 2 de manière à maintenir les tubes 20 débouchant dans les collecteurs 3A, 3B.As shown on the figure 2 , a collector plate 6 is mounted at each end of the heat transfer beam 2 so as to maintain the tubes 20 opening into the collectors 3A, 3B.

Dans le cas de radiateur avec plaque collectrice en métal et boîtier en plastique, un joint assurant l'étanchéité entre le boîtier 7 et le faisceau caloporteur 2 est disposé sur la plaque collectrice 6. Pour les faisceaux à assemblage mécanique, le joint pourra faire toute la surface de la plaque collectrice 6, des orifices 61 étant prévus dans le joint pour le passage étanche des tubes 20. En référence à la figure 3, les extrémités des tubes 20 dépassent à l'intérieur du collecteur 3B. Le dépassement atteint 2 à 3 mm environ pour les faisceaux de tubes à assemblage mécanique. Il est sensiblement plus faible pour les faisceaux brasés dans lesquels les tubes sont brasés à la plaque collectrice.In the case of radiator with metal collector plate and plastic housing, a seal ensuring the seal between the housing 7 and the heat transfer beam 2 is disposed on the collector plate 6. For the mechanically assembled beams, the seal can do any the surface of the manifold plate 6, orifices 61 being provided in the seal for the sealed passage of the tubes 20. With reference to the figure 3 the ends of the tubes 20 protrude inside the manifold 3B. Exceedance is approximately 2 to 3 mm for mechanically assembled tube bundles. It is substantially lower for the brazed bundles in which the tubes are brazed to the header plate.

En référence maintenant à la figure 4, les orifices 61 de la plaque collectrice 6 sont oblongs de manière à permettre un montage étanche avec les tubes aplatis 20 du faisceau caloporteur 2.Referring now to the figure 4 , the orifices 61 of the collector plate 6 are oblong so as to allow a sealed assembly with the flattened tubes 20 of the heat transfer beam 2.

Le boîtier 7 se présente sous la forme d'une goulotte en forme de U, c'est-à-dire d'un parallélépipède ayant une face ouverte, la plaque collectrice 6 venant fermer le U par sertissage. Le boîtier 7 définit avec sa plaque collectrice 6 un volume de fluide en circulation à l'entrée comme à la sortie de l'échangeur 1 qui est communément désigné collecteur 3A, 3B. En référence aux figures 3 et 5, la goulotte en U, dont le boîtier 7 à la forme, comporte une paroi verticale amont 71, une paroi verticale de fond 72, une paroi verticale aval 73, une paroi horizontale inférieure 74 et une paroi horizontale supérieure 75.The housing 7 is in the form of a U-shaped chute, that is to say a parallelepiped having an open face, the header plate 6 closing the U by crimping. The housing 7 defines with its collector plate 6 a volume of fluid circulating at the inlet and at the outlet of the exchanger 1 which is commonly designated collector 3A, 3B. With reference to figures 3 and 5 , the U-shaped trough, whose casing 7 in the form, comprises an upstream vertical wall 71, a vertical bottom wall 72, a downstream vertical wall 73, a lower horizontal wall 74 and an upper horizontal wall 75.

Comme représenté sur la figure 1, le boîtier 7 du collecteur de sortie 3B comporte une canalisation de fluide caloporteur F2 désignée tubulure 12 qui s'étend selon la direction Z pour permettre l'évacuation du fluide caloporteur F2 en sortie du collecteur de sortie 3B. La tubulure de sortie 12 est ici ménagée dans la partie supérieure de la paroi verticale aval 73. De manière similaire, le boîtier 7 du collecteur d'entrée 3A comporte une tubulure 11 qui s'étend selon la direction Z pour permettre l'introduction du fluide caloporteur F2 dans faisceau caloporteur 2. La tubulure d'entrée 11 est ici ménagée dans la partie inférieure du collecteur d'entrée 3A.As shown on the figure 1 , the casing 7 of the outlet manifold 3B comprises a coolant pipe F2 designated tubing 12 which extends in the direction Z to allow the evacuation of the heat transfer fluid F2 output of the outlet manifold 3B. The outlet pipe 12 is here formed in the upper part of the downstream vertical wall 73. Similarly, the housing 7 of the inlet manifold 3A comprises a pipe 11 which extends in the direction Z to allow the introduction of the heat transfer fluid F2 in heat transfer beam 2. The inlet pipe 11 is here formed in the lower part of the inlet manifold 3A.

Avant d'aborder plus en détails le montage du faisceau réfrigérant 5 dans le collecteur de sortie 3B, les composants du faisceau réfrigérant 5 vont être présentés plus en avant.Before addressing in more detail the assembly of the refrigerant bundle 5 in the outlet manifold 3B, the components of the refrigerant bundle 5 will be presented further.

En référence à la figure 5, le faisceau réfrigérant 5 comprend une pluralité de tubes empilés 50 répartis selon deux rangs R1, R2. Le faisceau réfrigérant 5 forme un circuit de circulation d'un fluide réfrigérant F1 qui pénètre dans le faisceau réfrigérant 5 via une entrée de fluide 51 et ressort via une sortie de fluide 52. Le fluide réfrigérant F1 échange de la chaleur par conduction thermique avec le fluide caloporteur F2 circulant entre les tubes 50 du faisceau 5.With reference to the figure 5 , the refrigerant bundle 5 comprises a plurality of stacked tubes 50 distributed in two rows R1, R2. The refrigerant bundle 5 forms a circulation circuit of a refrigerant fluid F1 which enters the refrigerant bundle 5 via a fluid inlet 51 and exits via a fluid outlet 52. The refrigerant fluid F1 exchanges heat by thermal conduction with the heat transfer fluid F2 flowing between the tubes 50 of the bundle 5.

En référence à la figure 7, les tubes 50 du faisceau réfrigérant 5 s'étendent selon l'axe longitudinal Y, le fluide caloporteur F2 circulant orthogonalement aux tubes 50 selon la direction X. Les tubes 50 d'un rang R1, R2 du faisceau réfrigérant 5 sont empilés selon l'axe Z. Comme représenté sur la figure 5, le faisceau réfrigérant 5 est monté dans le collecteur de sortie 3B de l'échangeur de chaleur 1 agencé pour conduire le fluide caloporteur F2 et pour échanger de la chaleur avec le flux d'air F3.With reference to the figure 7 , the tubes 50 of the refrigerant bundle 5 extend along the longitudinal axis Y, the coolant F2 circulating orthogonally to the tubes 50 in the direction X. The tubes 50 of a row R1, R2 of the refrigerant bundle 5 are stacked according to the Z axis. As shown on the figure 5 , the refrigerant bundle 5 is mounted in the outlet manifold 3B of the heat exchanger 1 arranged to conduct the heat transfer fluid F2 and to exchange heat with the air flow F3.

En référence à la figure 7 représentant schématiquement le faisceau réfrigérant 5, celui-ci comporte un rang gauche R1 et un rang droit R2 qui comprennent chacun trois unités d'échange U1-U3, U4-U6 empilées selon l'axe Z. Chaque unité d'échange U1-U3, U4-U6 comporte un bloc de tubes 53 dont les extrémités sont fixées de façon étanche à des éléments collecteurs 54 ou embouts.With reference to the figure 7 schematically representing the refrigerant bundle 5, it comprises a left row R1 and a straight row R2 which each comprise three exchange units U1-U3, U4-U6 stacked along the Z axis. Each exchange unit U1-U3 , U4-U6 comprises a block of tubes 53 whose ends are sealingly attached to collector elements 54 or end caps.

Un bloc de tubes 53 comporte un empilement de tubes plats 50 à l'intérieur desquels circule le fluide réfrigérant F1. Les tubes 50 sont en métal, le plus souvent en alliage d'aluminium, et comprennent des canaux de circulation de fluide réfrigérant F1 se présentant sous la forme de trous parallèles (non représentés) s'étendant sur toute la longueur des tubes 50. Chaque tube 50 comporte une surface extérieure qui est en contact avec le fluide caloporteur F2 de manière à ce que ce dernier apporte des frigories au fluide réfrigérant F1 par conduction thermique.A block of tubes 53 comprises a stack of flat tubes 50 inside which the coolant F1 circulates. The tubes 50 are made of metal, most often aluminum alloy, and comprise refrigerant circulation channels F1 in the form of parallel holes (not shown) extending over the entire length of the tubes 50. tube 50 has an outer surface which is in contact with the heat transfer fluid F2 so that the latter brings frigories to the refrigerant fluid F1 by thermal conduction.

En référence à la figure 5, les extrémités de bloc de tubes 53 sont montées de façon étanche dans les éléments collecteurs 54 qui permettent de distribuer ou de collecter le fluide réfrigérant F1 dans le bloc de tubes 53.With reference to the figure 5 , the tube block ends 53 are sealingly mounted in the collector elements 54 which distribute or collect the refrigerant fluid F1 in the tube block 53.

Comme représenté sur la figure 7, un élément collecteur 54 comporte un corps cylindrique s'étendant selon l'axe vertical Z et possède une section transversale circulaire. Le corps est ouvert par sa face supérieure ainsi que par sa face inférieure et comporte, en outre, une ouverture de liaison ménagée dans la face transversale dudit corps qui débouche selon l'axe Y pour recevoir une extrémité de bloc de tubes 53.As shown on the figure 7 , a collector element 54 comprises a cylindrical body extending along the vertical axis Z and has a circular cross section. The body is opened by its upper face as well as by its lower face and further comprises a connection opening formed in the transverse face of said body which opens out along the Y axis to receive a tube block end 53.

Comme représenté sur les figures 5 et 7, une unité d'échange comprend un bloc de tubes 53 qui est relié par ses extrémités aux éléments collecteurs 54. Une unité d'échange U1-U6 correspond à une brique élémentaire du faisceau réfrigérant 5, les unités d'échange U1-U6 s'emboîtant les unes avec les autres de manière à former un circuit de circulation de fluide réfrigérant F1. Pour former le faisceau réfrigérant 5, les unités d'échange U1-U6 sont empilées verticalement selon l'axe Z en un ou plusieurs rangs R1, R2 qui sont ensuite reliés pour former le faisceau 5. En référence à la figure 7, une canalisation 9 met en communication fluidique le premier rang R1 avec le deuxième rang R2.As shown on figures 5 and 7 an exchange unit comprises a block of tubes 53 which is connected at its ends to the collector elements 54. An exchange unit U1-U6 corresponds to an elementary brick of the refrigerant bundle 5, the exchange units U1-U6 are interlocking with each other so as to form a refrigerant circulation circuit F1. To form the refrigerant bundle 5, the exchange units U1-U6 are stacked vertically along the Z axis in one or more ranks R1, R2 which are then connected to form the bundle 5. Referring to FIG. figure 7 , a line 9 puts in fluid communication the first row R1 with the second rank R2.

Un rang du faisceau réfrigérant 5 peut comprendre une ou plusieurs passes pour faire circuler le fluide réfrigérant F1. On entend par le terme « passe », une ou plusieurs unités d'échange parcourues en parallèle par le fluide réfrigérant F1. Ainsi, en référence à la figure 7, le rang gauche R1 du faisceau 5 comporte une unique passe et le rang droite R2 comporte deux passes, un capot de séparation 55 étant monté entre deux éléments collecteurs 54 du rang de droite R2 de manière à détourner la circulation du flux réfrigérant F1. Il va de soi qu'un rang de faisceau d'échange peut comprendre plus de deux passes, par exemple trois.A rank of the refrigerant bundle 5 may include one or more passes to circulate the coolant F1. The term "pass" is understood to mean one or more exchange units traversed in parallel by the refrigerant fluid F1. So, with reference to the figure 7 , the left row R1 of the beam 5 has a single pass and the straight row R2 has two passes, a separation cap 55 being mounted between two collectors 54 of the right row R2 so as to divert the flow of the refrigerant flow F1. It goes without saying that a rank of exchange beam may comprise more than two passes, for example three.

Au fur et à mesure du refroidissement du fluide réfrigérant F1, sa température diminue ce qui induit une diminution de son volume. Pour optimiser le fonctionnement du faisceau 5, on diminue avantageusement la section de passage du fluide réfrigérant F1 en aval du circuit de refroidissement. Le faisceau réfrigérant 5 comprend avantageusement plus d'unités d'échange dans une passe amont que dans une passe aval au sens de la circulation du fluide réfrigérant F1.As cooling refrigerant F1, its temperature decreases which induces a decrease in its volume. To optimize the operation of the beam 5, the flow section of the coolant F1 downstream of the cooling circuit is advantageously reduced. The refrigerant bundle 5 advantageously comprises more exchange units in an upstream pass than in a downstream pass in the direction of the circulation of the coolant F1.

En référence à la figure 6 représentant schématiquement le circuit de circulation de fluide réfrigérant F1 dans le faisceau réfrigérant 5, le fluide réfrigérant F1 est introduit dans le faisceau 5 depuis l'entrée 51 et ressort depuis la sortie 52 après avoir traversé l'ensemble des unités d'échange U1-U6. Les unités d'échange U1-U3 du rang gauche R1 sont reliées en parallèle et les unités d'échange U4-U5 du rang droite R2 sont reliées en parallèle. Le groupe d'unités d'échanges U1-U3, le groupe d'unités d'échanges U4-U5 et l'unité d'échange U6 sont reliés en série de manière à ce que le fluide réfrigérant F1 qui pénètre dans le faisceau réfrigérant 5 via l'entrée 51 traverse successivement trois unités d'échange (U1-U3) puis deux (U4-U5) et enfin une (U6) pour ressortir via la sortie 52. En d'autres termes, le fluide réfrigérant F1 circule dans le faisceau réfrigérant 5 en trois passes réparties sur deux rangs R1, R2.With reference to the figure 6 schematically showing the refrigerant circulation circuit F1 in the refrigerant bundle 5, the refrigerant F1 is introduced into the bundle 5 from the inlet 51 and exits from the outlet 52 after passing through all the exchange units U1- U6. The exchange units U1-U3 of the left row R1 are connected in parallel and the exchange units U4-U5 of the right row R2 are connected in parallel. The group of exchange units U1-U3, the group of exchange units U4-U5 and the exchange unit U6 are connected in series so that the refrigerating fluid F1 which enters the refrigerant bundle 5 via the inlet 51 passes successively three exchange units (U1-U3) then two (U4-U5) and finally one (U6) to exit via the outlet 52. In other words, the refrigerant fluid F1 flows through the refrigerant bundle 5 in three passes spread over two rows R1, R2.

Les rangs R1, R2 du faisceau réfrigérant 5 sont maintenus entre eux dans leur partie supérieure par des clips 56 montés respectivement aux extrémités droite et gauche du faisceau 5 comme représenté sur la figure 7. Un clip 56 s'étend sensiblement selon l'axe X et comporte deux parties courbes destinées à maintenir respectivement les corps des éléments collecteurs 54 des unités d'échange du rang gauche R1 et du rang droite R2, les parties courbes étant reliées par un tenon, s'étendant sensiblement rectilignement.The rows R1, R2 of the refrigerant bundle 5 are held together in their upper part by clips 56 mounted respectively at the right and left ends of the bundle 5 as shown in FIG. figure 7 . A clip 56 extends substantially along the X axis and has two curved portions intended to respectively hold the bodies of the collector elements 54 of the exchange units of the left row R1 and the right row R2, the curved parts being connected by a tenon , extending substantially rectilinearly.

L'entrée et la sortie du fluide réfrigérant F1 du faisceau réfrigérant 5 se présentent respectivement sous la forme de tubulures cylindriques d'entrée 51 et de sortie 52 s'étendant dans la direction Z et dont l'extrémité libre est filetée pour permettre le montage du faisceau réfrigérant 5 dans le collecteur de sortie 3B.The inlet and outlet of the refrigerant fluid F1 of the refrigerant bundle 5 are respectively in the form of cylindrical inlet pipes 51 and outlet 52 extending in the Z direction and whose free end is threaded to allow assembly of the refrigerant bundle 5 in the outlet manifold 3B.

Le montage du faisceau réfrigérant 5 dans le collecteur de sortie 3B va être maintenant présenté. En référence à la figure 5, le faisceau réfrigérant 5 est monté solidaire du boîtier 7 dans le volume du collecteur de sortie 3B de manière à ce que les tubulures cylindriques d'entrée 51 et de sortie 52 du faisceau réfrigérant 5 s'étendent respectivement à travers un orifice d'entrée 76 et un orifice de sortie 77 ménagés dans la paroi verticale aval 73 comme représenté sur la figure 8A. Des écrous de solidarisation 8 sont fixés aux extrémités libres des tubulures cylindriques d'entrée 51 et de sortie 52 de manière à solidariser le faisceau réfrigérant 5 au boîtier 7.The assembly of the refrigerant bundle 5 in the outlet manifold 3B will now be presented. With reference to the figure 5 , the refrigerant bundle 5 is mounted integral with the housing 7 in the volume of the outlet manifold 3B so that the cylindrical inlet 51 and outlet 52 of the refrigerant bundle 5 respectively extend through an inlet port 76 and an outlet 77 formed in the downstream vertical wall 73 as shown in FIG. figure 8A . Locking nuts 8 are fastened to the free ends of the cylindrical inlet and outlet pipes 51 and 52 so as to secure the refrigerant bundle 5 to the housing 7.

Pour monter le faisceau réfrigérant 5 dans le collecteur de sortie 3B, en référence à la figure 8A, le faisceau réfrigérant 5 est introduit dans le boîtier 7 par sa face ouverte en le déplaçant selon la direction X. De manière avantageuse, la dimension du faisceau réfrigérant 5 est inférieure à la dimension du boîtier 7 selon la direction X de manière à permettre l'introduction du faisceau réfrigérant 5 avec ses tubulures cylindriques d'entrée 51 et de sortie 52 dans le boîtier 7.To mount the refrigerant bundle 5 in the outlet manifold 3B, with reference to the figure 8A , the refrigerant bundle 5 is introduced into the case 7 by its open face by moving it in the direction X. Advantageously, the size of the refrigerant bundle 5 is smaller than the size of the case 7 in the direction X so as to allow the introduction of the refrigerant bundle 5 with its cylindrical inlet 51 and outlet 52 pipes into the housing 7.

Une fois que les tubulures cylindriques d'entrée 51 et de sortie 52 sont en regard des orifices d'entrée 76 et de sortie 77 ménagés dans la paroi verticale aval 73 du boîtier 7, le faisceau réfrigérant 5 est déplacé selon la direction Z de manière à ce que les tubulures cylindriques 51, 52 dépassent à travers la paroi verticale aval 73 du boîtier 7 comme représenté sur la figure 8B. Les écrous de solidarisation 8 sont ensuite vissés aux extrémités filetées des tubulures cylindriques 51, 52 comme représenté sur la figure 8C afin d'assurer la liaison mécanique entre le faisceau réfrigérant 5 et le boîtier 7.Once the cylindrical inlet 51 and outlet 52 pipes are facing the inlet and outlet openings 76 formed in the downstream vertical wall 73 of the housing 7, the refrigerant bundle 5 is displaced in the Z direction so as to the cylindrical pipes 51, 52 protrude through the downstream vertical wall 73 of the housing 7 as shown in FIG. Figure 8B . The securing nuts 8 are then screwed to the threaded ends of the cylindrical tubes 51, 52 as shown in FIG. Figure 8C to ensure the mechanical connection between the refrigerant bundle 5 and the housing 7.

En position montée, comme représenté sur la figure 2, les tubes 50 du faisceau réfrigérant 5 s'étendent dans la partie inférieure du collecteur de sortie 3B. Autrement dit, le faisceau réfrigérant 5 est décalé verticalement par rapport à la tubulure de sortie 12 de l'échangeur 1.In mounted position, as shown on the figure 2 the tubes 50 of the refrigerant bundle 5 extend into the lower part of the outlet manifold 3B. In other words, the refrigerant bundle 5 is vertically offset from the outlet pipe 12 of the exchanger 1.

De manière avantageuse, les tubes 50 du faisceau réfrigérant 5 sont empilés selon la direction Z de manière à ce qu'un tube 20 du faisceau caloporteur 2, qui possède une section oblongue de grand diamètre s'étendant selon la direction Z, envoie le flux caloporteur F2 qu'il conduit sur l'ensemble des tubes empilés du faisceau réfrigérant 5. En d'autres termes, le faisceau caloporteur 2 s'étend orthogonalement au faisceau réfrigérant 5, le faisceau réfrigérant 5 s'étendant en regard de l'embouchure des tubes 20 du faisceau caloporteur 2.Advantageously, the tubes 50 of the refrigerant bundle 5 are stacked in the Z direction so that a tube 20 of the heat transfer bundle 2, which has a large diameter oblong section extending in the Z direction, sends the stream coolant F2 that it leads on all the stacked tubes of the refrigerant bundle 5. In other words, the heat transfer beam 2 extends orthogonally to the refrigerant bundle 5, the refrigerant bundle 5 extending opposite the mouth tubes 20 of the heat transfer bundle 2.

De manière avantageuse, comme représenté sur la figure 3, le faisceau réfrigérant 5 est monté à distance de la paroi verticale amont 71 de manière à ménager un espace « d » de circulation du fluide caloporteur F2 entre la paroi verticale amont 71 et le faisceau réfrigérant 5. Cela permet avantageusement de faciliter la circulation du fluide caloporteur F2 dans le collecteur de sortie 3B en limitant les pertes de charges dans ledit collecteur 3B.Advantageously, as shown on the figure 3 , the refrigerant bundle 5 is mounted at a distance from the upstream vertical wall 71 so as to provide a space "d" for the circulation of the heat transfer fluid F2 between the upstream vertical wall 71 and the refrigerant bundle 5. This advantageously makes it possible to facilitate the circulation of the heat transfer fluid F2 in the outlet manifold 3B by limiting the losses in said manifold 3B.

En fonctionnement, en référence à la figure 1, l'échangeur de chaleur 1 conduit le fluide caloporteur F2 depuis son collecteur d'entrée 3A vers le collecteur de sortie 3B et échange de la chaleur par conduction thermique avec le flux d'air F3 lorsque le fluide caloporteur F2 traverse le faisceau caloporteur 2.In operation, with reference to figure 1 , the heat exchanger 1 conducts the heat transfer fluid F2 from its inlet manifold 3A to the outlet manifold 3B and exchanges the heat by thermal conduction with the air flow F3 when the heat transfer fluid F2 passes through the heat transfer beam 2 .

Les tubes 20 du faisceau caloporteur 2 injectent dans le collecteur de sortie 3B le flux caloporteur refroidi F2 qui circule, dans la partie inférieure du boîtier 3B, à travers le faisceau réfrigérant 5 et qui circule, dans la partie supérieure du boîtier 3B, directement vers la tubulure de sortie 12. En traversant le faisceau réfrigérant 5, le fluide caloporteur F2 circule entre les tubes 50 du faisceau réfrigérant 5 pour refroidir le fluide réfrigérant F1 qui circule en passes dans ledit faisceau réfrigérant 5. Après avoir refroidi le faisceau réfrigérant 5, le fluide caloporteur F2 est acheminé vers la tubulure de sortie 12 de l'échangeur 1. Le fluide réfrigérant F1 est pour sa part introduit et évacué du faisceau réfrigérant 5 par les tubulures cylindriques 51, 52 qui débouchent de la paroi verticale aval 73. Ainsi, de manière avantageuse, toutes les interfaces de l'échangeur de chaleur 1 et de son faisceau réfrigérant intégré 5 sont ménagées sur la face aval de l'échangeur 1 ce qui facilite l'intégration dudit échangeur 1 dans un véhicule automobile et limite son encombrement.The tubes 20 of the heat transfer beam 2 inject into the outlet manifold 3B the cooled heat transfer stream F2 which circulates, in the lower part of the casing 3B, through the refrigerant bundle 5 and which flows, in the upper part of the casing 3B, directly towards the the outlet pipe 12. While passing through the refrigerant bundle 5, the coolant F2 flows between the tubes 50 of the refrigerant bundle 5 to cool the refrigerant fluid F1 which flows in passes in said coolant bundle 5. After cooling the coolant bundle 5, the heat transfer fluid F2 is conveyed to the outlet pipe 12 of the exchanger 1. The refrigerant fluid F1 is in turn introduced and discharged from the refrigerant bundle 5 by the cylindrical pipes 51, 52 which open from the downstream vertical wall 73. , advantageously, all the interfaces of the heat exchanger 1 and its integrated cooling beam 5 are arranged on the downstream face of the exchanger 1 which facilitates the integration of said exchanger 1 in a motor vehicle and limits its size.

Dans cet exemple, la tubulure cylindrique de sortie 52 du faisceau réfrigérant 5 est disposée à proximité de la tubulure de sortie 12 de l'échangeur de chaleur 1 mais il va de soi que le faisceau réfrigérant 5 pourrait également être monté dans le sens inverse avec sa tubulure cylindrique de d'entrée 51 disposée à proximité de la tubulure de sortie 12 de l'échangeur de chaleur 1.In this example, the cylindrical outlet pipe 52 of the refrigerant bundle 5 is disposed close to the outlet pipe 12 of the heat exchanger 1 but it goes without saying that the refrigerant bundle 5 could also be mounted in the opposite direction with its cylindrical inlet pipe 51 disposed near the outlet pipe 12 of the heat exchanger 1.

De même, il a été présenté un échangeur de chaleur 1 avec le faisceau réfrigérant 5 intégré dans son collecteur de sortie 3B mais il pourrait également être monté dans le collecteur d'entrée 3A.Likewise, a heat exchanger 1 has been presented with the refrigerant bundle 5 integrated in its outlet manifold 3B but it could also be mounted in the inlet manifold 3A.

Dans le même esprit, le faisceau 5 pourrait avoir une autre structure.In the same spirit, the beam 5 could have another structure.

Comme illustré aux figures 9 à 12, le condenseur conforme à l'invention pourra aussi être indépendant.As illustrated in Figures 9 to 12 , the condenser according to the invention may also be independent.

Son boitier 103 est configuré, par exemple, pour forcer une circulation du fluide caloporteur à travers le faisceau 105, visible au niveau d'une zone écorchée aux figures 9 et 10.Its housing 103 is configured, for example, to force a circulation of the coolant through the beam 105, visible at a cut-off area at Figures 9 and 10 .

Pour cela, le boîtier présente, notamment, une première zone 107 au contact du faisceau et au moins une seconde zone 109 à distance du faisceau pour définir des collecteurs 111 a, 111 b pour le fluide caloporteur de façon à ce que ledit fluide caloporteur passe d'une entrée 113a de fluide caloporteur, communiquant avec l'un 111 a des collecteurs, à une sortie 113b de fluide caloporteur, communiquant avec un autre 111 b des collecteurs, en passant par un trajet de circulation du fluide caloporteur à travers ledit faisceau 105 au niveau de ladite première zone 107.For this, the housing has, in particular, a first zone 107 in contact with the beam and at least a second zone 109 at a distance from the beam to define collectors 111a, 111b for the heat transfer fluid so that said heat transfer fluid passes a heat transfer fluid inlet 113a, communicating with a manifold 111a, to an outlet 113b of heat transfer fluid, communicating with another 111b collectors, through a heat transfer fluid flow path through said beam 105 at said first zone 107.

Selon le mode de réalisation illustré, le faisceau 105 comprend un empilement de tubes 115 débouchant à leur extrémité dans des éléments collecteurs 117 superposés. Les éléments collecteurs 117 communiquent entre eux par des orifices, non représentés, pour définir des collecteurs pour le fluide frigorigène, de part et d'autres des tubes 115. Le fluide frigorigène circule dans les tubes 115, notamment prévus multicanaux, et le fluide caloporteur circule entre les tubes 115. De façon plus générale, le faisceau 105 définira, par exemple, un premier trajet pour le fluide frigorigène et un second trajet pour le fluide caloporteur.According to the illustrated embodiment, the beam 105 comprises a stack of tubes 115 opening at their end in collector elements 117 superimposed. The collector elements 117 communicate with each other by means of orifices, not shown, for defining collectors for the refrigerant, on either side of the tubes 115. The refrigerant circulates in the tubes 115, in particular provided multichannel, and the heat transfer fluid circulates between the tubes 115. More Generally, the beam 105 will define, for example, a first path for the refrigerant and a second path for the heat transfer fluid.

Pour revenir au mode de réalisation illustré, les tubes 115 sont au contact du boîtier 103 tandis que le boîtier 103 s'écarte du faisceau au niveau des éléments collecteurs 117. Les collecteurs 111 a, 111 b pour le fluide caloporteur sont situés au niveau desdits éléments collecteurs 117.To return to the illustrated embodiment, the tubes 115 are in contact with the housing 103 while the housing 103 away from the beam at the collector elements 117. The collectors 111 a, 111 b for the heat transfer fluid are located at the level of said collecting elements 117.

Le fluide caloporteur peut ainsi se répartir entre les tubes 115 puis parcourir le faisceau entre lesdits collecteurs 111 a, 111 b en étant canalisé entre lesdits tubes 115. On évite de la sorte qu'une partie du fluide caloporteur passe directement de l'entrée 113a à la sortie 113b de l'échangeur sans échanger avec le fluide frigorigène. Autrement dit, ladite première zone 107 est prévue au niveau des tubes 115 et ladite seconde zone 109 est prévue au niveau des éléments collecteurs 117.The heat transfer fluid can thus be distributed between the tubes 115 and then travel the beam between said collectors 111a, 111b by being channeled between said tubes 115. It is thus avoided that a portion of the heat transfer fluid passes directly from the inlet 113a at the outlet 113b of the exchanger without exchanging with the refrigerant. In other words, said first zone 107 is provided at the level of the tubes 115 and said second zone 109 is provided at the level of the collector elements 117.

Ledit boitier 103 présente, par exemple, des tubulures d'entrée 119a et/ou de sortie 119b pour le fluide caloporteur, issues de matière. Elles débouchent dans les collecteurs 111 a, 111 b.Said housing 103 has, for example, inlet pipes 119a and / or outlet 119b for the heat transfer fluid, made of material. They open into the collectors 111a, 111b.

Ledit boitier 103 pourra aussi présenter des nervures de renfort 121, issues de matière. Lesdites nervures 121 présentent, par exemple, un configuration croisée. Dans l'exemple illustré, le boîtier 103 présente une forme sensiblement parallélépipédique et les nervures 121 sont parallèles aux arrêtes du boîtier.Said housing 103 may also have reinforcing ribs 121, made of material. Said ribs 121 have, for example, a cross configuration. In the illustrated example, the housing 103 has a substantially parallelepipedal shape and the ribs 121 are parallel to the edges of the housing.

Ledit boîtier 103 pourra encore présenter des brides de fixation 123 du condenseur à un support, lesdites brides étant issues de matière. Lesdites brides de fixations 123 sont situées, par exemple, au niveau d'une ou plusieurs dites nervures de renforts 121, notamment, entre deux dites nervures 121.Said housing 103 may also have fixing flanges 123 of the condenser to a support, said flanges being made of material. Said fastening flanges 123 are located, for example, at one or more reinforcing ribs 121, in particular, between two said ribs 121.

Le boitier 103 est fermé, par exemple, par un couvercle 125, notamment en métal, qui pourra être serti sur celui-ci. Le couvercle définit, par exemple, une plaque terminale du faisceau 105. Autrement dit, le faisceau 105 est solidaire du couvercle 125.The housing 103 is closed, for example, by a cover 125, in particular made of metal, which can be crimped on this one. The cover defines, for example, an end plate of the beam 105. In other words, the beam 105 is integral with the cover 125.

Le faisceau d'échange de chaleur 105 présente, notamment, des tubulures 127a, 127b d'entrée-sortie débouchant à travers le couvercle 125.The heat exchange bundle 105 has, in particular, inlet-outlet pipes 127a, 127b opening through the cover 125.

Dans l'exemple illustré, ces tubulures 127a, 127b communique avec une bouteille 129 qui pourra être portée par le couvercle 125. Il s'agit d'une bouteille servant, de façon connue de l'homme de l'art, à définir un volume de réserve de fluide frigorigène. Elle pourra aussi servir à le filtrer et/ou à assurer à le mettre en contact avec un dessicant, placé à l'intérieur de celle-ci. Ladite bouteille pourra encore être configurée pour permettre une séparation de phases, permettant d'éliminer les éventuelles parties encore en phase vapeur du fluide frigorigène à la sortie du condenseur avant qu'il poursuive son trajet.In the illustrated example, these pipes 127a, 127b communicate with a bottle 129 which can be carried by the cover 125. This is a bottle used, in a manner known to those skilled in the art, to define a reserve volume of refrigerant. It may also be used to filter it and / or ensure that it is placed in contact with a desiccant placed inside it. Said bottle can be further configured to allow phase separation, to eliminate any parts still vapor phase of the refrigerant at the outlet of the condenser before it continues its journey.

Selon le mode de réalisation illustré, le fluide frigorigène pénètre ainsi dans le condenseur, par la tubulure d'entrée 127a, traverse les éléments collecteurs 117 situés à une première extrémité des tubes 115, pénètre dans les tubes 115 qu'il parcoure, débouche dans les éléments collecteurs 117 situés à l'autre extrémité des tubes 115 pour ensuite sortir du condenseur par la tubulure de sortie 127b.According to the illustrated embodiment, the refrigerant thus enters the condenser, through the inlet manifold 127a, passes through the collector elements 117 located at a first end of the tubes 115, enters the tubes 115 that it travels, opens into the collector elements 117 located at the other end of the tubes 115 and then exit the condenser through the outlet pipe 127b.

Le condenseur est fixé, par exemple, à une buse d'un dispositif de support d'un ou plusieurs éléments d'équipement d'une face avant de véhicule automobile, ladite buse étant prévue apte à accueillir le ou lesdits éléments d'équipement. Il s'agit, par exemple, d'une buse intégrant un stator d'un dispositif de ventilation. Ladite buse étant elle aussi réalisée en plastique, la fixation du condenseur est simplifiée.The condenser is fixed, for example, to a nozzle of a support device of one or more equipment elements of a front face of a motor vehicle, said nozzle being provided capable of accommodating said one or more equipment elements. This is, for example, a nozzle incorporating a stator of a ventilation device. Said nozzle is also made of plastic, the fixing of the condenser is simplified.

Claims (9)

Condenseur, notamment pour système de climatisation d'un véhicule automobile, comprenant un boîtier (7, 103) et un faisceau d'échange de chaleur (5, 105), le condenseur étant configuré pour permettre un échange de chaleur entre un fluide frigorigène parcourant le faisceau (5, 105) et un fluide caloporteur traversant le boîtier (7, 103) caractérisé par le fait que le boîtier est en plastique.Condenser, in particular for a motor vehicle air conditioning system, comprising a housing (7, 103) and a heat exchange bundle (5, 105), the condenser being configured to allow a heat exchange between a traveling refrigerant the beam (5, 105) and a coolant passing through the housing (7, 103), characterized in that the housing is made of plastic. Condenseur selon la revendication 1 dans lequel le boitier (7, 103) est configuré pour forcer une circulation du fluide caloporteur à travers le faisceau.Condenser according to claim 1 wherein the housing (7, 103) is configured to force a circulation of heat transfer fluid through the beam. Condenseur selon l'une quelconque des revendications 1 ou 2 dans lequel le boîtier (103) présente une première zone (107) et au moins une seconde zone (109) à distance du faisceau pour définir des collecteurs (111 a, 111 b) pour le fluide caloporteur de façon à ce que ledit fluide caloporteur passe d'une entrée (113a) de fluide caloporteur, communiquant avec l'un des collecteurs (111a), à une sortie (113b) de fluide caloporteur, communiquant avec un autre des collecteurs (111 b), en passant par un trajet de circulation du fluide caloporteur à travers ledit faisceau au niveau de ladite première zone (107).A condenser according to any one of claims 1 or 2 wherein the housing (103) has a first zone (107) and at least a second zone (109) away from the beam to define collectors (111a, 111b) for the heat transfer fluid so that said heat transfer fluid passes from a heat transfer fluid inlet (113a), communicating with one of the collectors (111a), to an outlet (113b) of coolant, communicating with another of the collectors (111 b), passing through a heat transfer fluid flow path through said beam at said first zone (107). Condenseur selon l'une quelconque des revendications précédentes dans lequel ledit boîtier (103) présente des tubulures d'entrée et/ou de sortie (119a, 119b) pour le fluide caloporteur.Condenser according to any one of the preceding claims wherein said housing (103) has inlet and / or outlet pipes (119a, 119b) for the coolant. Condenseur selon l'une quelconque des revendications précédentes dans lequel ledit boîtier (103) présente des nervures de renfort (121).Condenser according to any one of the preceding claims wherein said housing (103) has reinforcing ribs (121). Condenseur selon la revendication 5 dans lequel ledit boîtier (103) présente des brides de fixation (123) du condenseur à un support.The condenser of claim 5 wherein said housing (103) has clamps (123) for fixing the condenser to a support. Condenseur selon la revendication 6 dans lequel lesdites brides de fixations (123) sont situées au niveau d'une ou plusieurs nervures de renforts (121).The condenser of claim 6 wherein said fastening flanges (123) are located at one or more reinforcing ribs (121). Dispositif de support d'un ou plusieurs éléments d'équipement d'une face avant de véhicule automobile, ledit dispositif de support comprenant une buse, apte à accueillir le ou lesdits éléments d'équipement, et un condenseur selon l'une quelconque des revendications précédentes, le boîtier du condenseur étant fixé à ladite buse.Device for supporting one or more elements of equipment of a front face of a motor vehicle, said support device comprising a nozzle capable of accommodating said one or more equipment elements, and a condenser according to any one of the claims. previous, the condenser housing being attached to said nozzle. Echangeur de chaleur (1) comprenant un faisceau (2) d'échange de fluide caloporteur (F2) avec le flux d'air (F3), un collecteur d'entrée (3A) agencé pour distribuer le fluide caloporteur (F2) dans ledit faisceau (2) d'échange de fluide caloporteur (F2), un collecteur de sortie (3B) agencé pour collecter le fluide caloporteur (F2) issu dudit faisceau (2) d'échange de fluide caloporteur (F2), ledit collecteur d'entrée et ledit collecteur de sortie comprenant chacun un boîtier (7) fermé par une plaque collectrice (6), reliée au faisceau, ledit échangeur comprenant en outre un condenseur selon l'une quelconque des revendications précédentes 1 à 8, le boîtier du condenseur étant constitué du boîtier (7) du collecteur d'entrée et/ou de sortie.Heat exchanger (1) comprising a heat exchange fluid (F2) beam (2) with the air flow (F3), an inlet manifold (3A) arranged to distribute the heat transfer fluid (F2) in said heat transfer fluid exchange bundle (2), an outlet manifold (3B) arranged to collect heat transfer fluid (F2) from said coolant exchange bundle (2), said collector inlet and said outlet manifold each comprising a housing (7) closed by a header plate (6), connected to the beam, said exchanger further comprising a condenser according to any one of the preceding claims 1 to 8, the condenser housing being consisting of the housing (7) of the inlet and / or outlet manifold.
EP11170766.7A 2010-06-30 2011-06-21 Condenser, in particular for a car air-conditioning system and heat exchanger equipped with such a condenser Active EP2402694B1 (en)

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FR1002786A FR2962205B1 (en) 2010-06-30 2010-06-30 COLLECTOR HOUSING OF A HEAT EXCHANGER CONDUCTING A HEAT TRANSFER FLUID AND COMPRISING AN EXCHANGE BEAM OF A REFRIGERANT FLUID
FR1057828A FR2962199B1 (en) 2010-06-30 2010-09-28 CONDENSER, IN PARTICULAR FOR AIR CONDITIONING SYSTEM OF A MOTOR VEHICLE.

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