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EP2936028A1 - Condenser with a refrigerant supply for an air-conditioning circuit - Google Patents

Condenser with a refrigerant supply for an air-conditioning circuit

Info

Publication number
EP2936028A1
EP2936028A1 EP13803019.2A EP13803019A EP2936028A1 EP 2936028 A1 EP2936028 A1 EP 2936028A1 EP 13803019 A EP13803019 A EP 13803019A EP 2936028 A1 EP2936028 A1 EP 2936028A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
condenser
heat exchange
outlet
housing
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
EP13803019.2A
Other languages
German (de)
French (fr)
Other versions
EP2936028B1 (en
Inventor
Isabelle Citti
Sébastien JACOPE
Gaël DURBECQ
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
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP2936028A1 publication Critical patent/EP2936028A1/en
Application granted granted Critical
Publication of EP2936028B1 publication Critical patent/EP2936028B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • 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
    • 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
    • F28D9/0031—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 conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—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 conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—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 conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • F28D9/0093—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
    • 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
    • F25B2339/043—Condensers made by assembling plate-like or laminated elements
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0443—Condensers with an integrated receiver the receiver being positioned horizontally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium

Definitions

  • the invention relates to a condenser with refrigerant reserve for an air conditioning circuit, in particular for a motor vehicle.
  • condensers located on the front of vehicles. They provide a heat exchange between a refrigerant circulating in the condenser and a flow of incident air. They are sometimes accompanied by a reserve or bottle of refrigerant and provided with a portion for subcooling said refrigerant output of the reserve.
  • condensers comprising a first heat exchange block for cooling the refrigerant by a heat transfer liquid and a second heat exchange block for the subcooling of the refrigerant by the coolant, a reserve of refrigerant being interposed between the heat exchange blocks.
  • Said blocks comprise stacked plates defining between them refrigerant circulation blades, so that a refrigerant blade is located between two cooling fluid blades.
  • a condenser for an air conditioning circuit comprising a housing configured to be connected to a reserve of refrigerant, also called bottle, the housing housing a first heat exchange part between the refrigerant and a coolant, said first portion being configured to convey the refrigerant to the refrigerant reservoir, and a second heat exchange portion configured to perform additional heat exchange between the refrigerant and the cooling liquid leaving said reserve.
  • the refrigerant reserve is not confined in the housing but can extend freely in length, preferably over the length of the housing, being for example adjacent to a length side of the housing, to extend over a long length and in a small footprint.
  • Said refrigerant reserve is advantageously fixed to the housing, preferably by a flange having inlet and outlet pipes for the refrigerant in or of the latter, respectively.
  • the condenser advantageously comprises at least one coolant circuit of said heat exchange portions, which may be common to said heat exchange parts or separate for each of them.
  • the condenser advantageously comprises a set of stacked plates defining between them circulation blades of the refrigerant and the cooling fluid in said heat exchange parts, in particular so that a refrigerant blade is located between two cooling plates.
  • cooling fluid said set of stacked plates being configured to provide a refrigerant flow path for a series circulation of the refrigerant in the housing, from the first heat exchange portion to the fluid reservoir, and thereafter last in the second part of heat exchange.
  • Said set of stacked plates is advantageously configured to provide a coolant flow path extending in said heat exchange portions, preferably from the second heat exchange portion to the first heat exchange portion. .
  • it will be able to define two distinct paths, respectively associated with the distinct circuits mentioned above.
  • said stack of plates is configured to define a barrier to the flow of refrigerant between the first and second heat exchange portions.
  • each of said plates advantageously extends in continuity of material at said first heat exchange portion and said second heat exchange portion.
  • a condenser plate defining a said refrigerant circulation blade may thus comprise a portion raised to define the said barrier to the circulation of the refrigerant between the first and second heat exchange parts.
  • Said stack of plates advantageously comprises refrigerant inlet and / or outlet collectors, communicating with said refrigerant circulation blades at said first part and / or second heat exchange part, and / or collectors. inlet and / or outlet of the coolant, communicating with said coolant circulation blades.
  • Said inlet and / or outlet collectors of the refrigerant and said inlet and / or outlet collectors coolant advantageously open on one side of the housing and / or on an opposite side, intended to be vis-à-vis of said reservation.
  • collectors open out of the housing through openings and / or inlet and / or fluid outlet flanges;
  • the refrigerant inlet manifold in said first exchange portion is located opposite the refrigerant inlet opening in the housing and the refrigerant outlet manifold of said first exchange portion is located opposite the inlet opening of the refrigerant in the reserve;
  • the first heat exchange part extends in the housing between said refrigerant inlet manifold in said first exchange part and said refrigerant outlet manifold of said first exchange part;
  • the refrigerant inlet manifold in said second exchange portion is disposed opposite the refrigerant outlet opening of the reserve, and the refrigerant outlet manifold of said second exchange portion is disposed facing the outlet opening of the refrigerant of the housing;
  • the second heat exchange part extends between said refrigerant inlet manifold in the second exchange part and said refrigerant outlet manifold of said second heat exchange part;
  • said refrigerant inlet manifolds in the first refrigerant exchange and outlet part of the second exchange part open in proximity to two opposite sides of the housing;
  • said inlet and outlet coolant collectors advantageously open near the same opposite sides;
  • said set of stacked plates extends in a rectangular parallelepipedal volume corresponding, for example, to that of the housing; said coolant inlet and outlet manifolds and said refrigerant inlet manifolds in the first refrigerant exchange and outlet part of the second exchange part are oriented parallel along four of the arretes of said housing;
  • the refrigerant circulation blades and coolant circulation blades have different sections;
  • the first heat exchange part comprises partitions parallel to the plates, alternately arranged in said refrigerant inlet manifold and said refrigerant outlet manifold, so as to conduct the refrigerant in the first exchange part; of heat following several passes of fluid circulation, for example with reversal of the direction of fluid flow from one pass to another.
  • the invention also relates to a condenser plate as described above as well as the assembly of such a condenser and the corresponding reserve.
  • Figure 1 is a perspective view of an embodiment of a condenser according to the invention.
  • Figure 2 is a bottom view of this condenser
  • Figure 3 is a schematic sectional view of the condenser along the line B-B of Figure 2;
  • Figure 4 is a schematic sectional view of the condenser along the line A-A of Figure 2;
  • Figure 5 is an enlarged partial view of the inlet and outlet manifolds of the condenser of Figure 4;
  • Figure 6 is a schematic sectional view of the refrigerant path of a condenser according to an alternative embodiment, and
  • Figure 7 is a schematic view of a cooling fluid path of the condenser according to an alternative embodiment.
  • the invention relates to a condenser 1 with refrigerant reserve 3 or bottle for an air conditioning circuit not shown, in particular an air conditioning circuit for a motor vehicle.
  • Said refrigerant is, for example, the fluid known as R134a, or the like.
  • This condenser 1 comprises a housing 5, preferably parallelepiped rectangle as in the present case, configured to be connected to the reserve 3 of refrigerant, which can be mounted at a distance from the housing 5 or attached adjacent to the housing 5, as in the case present.
  • Said reserve 3 is here located in relation to a lateral side 1 1 'of the housing, that is to say a side of the housing located between longitudinal end sides 12, 14 of said housing.
  • the reserve 3 of refrigerant is attached to the housing 5 by a flange having two pipes 7, 9, respectively, inlet and outlet of the refrigerant in or out of this reserve.
  • the housing 5 houses a first heat exchange part 13, intended here to ensure the condensation of the refrigerant by a heat exchange with a cooling liquid, and a second heat exchange part 15 to achieve here a sub-cooling of said refrigerant by said liquid of cooling, output of said reserve 3.
  • a first heat exchange part 13 intended here to ensure the condensation of the refrigerant by a heat exchange with a cooling liquid
  • second heat exchange part 15 to achieve here a sub-cooling of said refrigerant by said liquid of cooling, output of said reserve 3.
  • the condenser 1 comprises a set of plates 19 stacked in a stacking direction, here substantially orthogonal to said plates.
  • these plates extend in continuity of material on the first and second heat exchange parts 13 and 15.
  • the plates define between them refrigerant circulation blades 21 in said heat exchange parts, so that a refrigerant blade 21 (FIG. 4) is located between two cooling fluid blades 23 of said coolant circuit 17 (FIG. 3).
  • Said circulation blades here have different heights.
  • Said blades consist of a sheet, in particular aluminum and / or aluminum alloy. They are formed, for example, by stamping. They can be assembled together by soldering at a peripheral raised edge.
  • Said set of plates 19 stacked here constitutes the housing 5, which can be further shaped to accommodate said set of plates 19 stacked.
  • Said set of stacked plates 19 is configured to provide a refrigerant circulation path allowing a series circulation of the refrigerant in the housing 5, from the first heat exchange portion 13 to the fluid reservoir 3, and then to last in the second part of heat exchange, as shown in Figure 4 following the arrows.
  • the refrigerant condensed in the first heat exchange part 13 is thus conveyed to the refrigerant reserve 3, which ensures a gas-liquid phase separation of the refrigerant and / or performs filtration and / or dehydration of the refrigerant. latest.
  • Said set of stacked plates 19 is further configured to provide for said cooling fluid circulation path 17 extending in said heat exchange portions 13, 15, more precisely of the second heat exchange portion 15 to the first portion 13 of heat exchange, as shown in Figure 3 according to the arrows to achieve a countercurrent cooling.
  • Said stack of plates 19 comprise inlet manifolds 33, 37 and / or outlet 35, 39 of the refrigerant, communicating with said refrigerant circulation blades at said first and / or second exchange part of the refrigerant. heat. It further comprises inlet manifolds 22 and / or outlet 24 of the coolant, communicating with said coolant circulation blades.
  • Said manifolds 22, 24, 33, 35, 37, 39 open either at the lateral side 1 1 'of the housing located vis-à-vis said reserve 3, or at the side of the opposite side 1 1, c' that is to say at the lateral sides of the housing oriented perpendicular to the stacking direction of the plates.
  • said collectors 22, 24, 33, 35, 37, 39 advantageously extend parallel to each other and parallel to the stacking direction.
  • the reserve 3 to extend in length up to plumb with said inlet manifold 33 of the refrigerant in said first exchange part.
  • Said inlet manifolds 22 and outlet 24 of the coolant open here on the lateral side 1 1 opposite to that 1 1 'vis-à-vis the reserve 3.
  • the inlet manifolds 22 and outlet 24 of the coolant, inlet 33 of the refrigerant in the first portion of heat exchange and outlet 39 of the refrigerant of the second heat exchange portion open into housing openings, formed here as inlet manifolds 29 and outlet 31 of the coolant and inlet pipes 25 and outlet 27 of the refrigerant.
  • the other manifolds 35 and 37 open on the pipes 7 and 9 of the reserve.
  • Said refrigerant inlet manifolds 33 in the first exchange and outlet portion 39 of the refrigerant of the second exchange portion open near the two longitudinal end sides 12, 14 of the housing.
  • said inlet manifolds 22 and outlet 24 of the coolant open in proximity to said opposite sides 12, 14 of the longitudinal end of the housing.
  • said inlet manifolds 22 and outlet 24 of the coolant and said inlet manifolds 33 of the refrigerant in the first exchange and outlet part 39 of the refrigerant of the second part of exchange can advantageously be oriented parallel along four edges of said housing.
  • said inlet and outlet pipes 22, 24, 25, 27 are advantageously arranged at the four corners of the lateral side 1 1 opposite the lateral side 1 1 'situated vis-à-vis said bottle.
  • Said refrigerant inlet manifold 33 in said first exchange portion is located opposite the refrigerant inlet manifold 25 in the housing and the refrigerant outlet manifold 35 of said first exchange portion is located opposite the inlet opening of the refrigerant in the reserve 3, communicating here with a first 7 of the tubes of the attachment flange of said reserve said housing.
  • the first heat exchange portion extends into the housing between said inlet manifold 33 of the refrigerant in said first exchange portion and said refrigerant outlet manifold 35 of said first exchange portion.
  • the inlet manifold 37 of refrigerant in said second exchange portion is disposed opposite the outlet opening of the refrigerant of the reserve 3, communicating here with a second 9 of the tubes of the fastening flange of said reserve said housing, and the outlet manifold 39 of the refrigerant of said second exchange portion is disposed opposite the outlet pipe 27 of the refrigerant housing.
  • the second heat exchange portion extends between said inlet manifold 37 of the refrigerant in the second exchange portion and said refrigerant outlet manifold 39 of said second heat exchange portion.
  • said stack of plates 19 is configured to define a barrier to the flow of refrigerant between the first 13 and second 15 heat exchange portions.
  • the plates 19, said first plates, defining the refrigerant circulation blades has a raised portion 26 defining said barrier.
  • the height of said raised portion corresponds to the height of the refrigerant blades.
  • Said raised edge extends over the width of said first plates, that is to say, here, one of the sides side 16 of the housing connecting said lateral sides 1 1, 1 1 'perpendicular to the stacking direction at the opposite side side 18.
  • Said first plates 19 have, near the ends of one, their longitudinal sides, on the one hand, a first orifice for the inlet manifold 33 of the refrigerant in the first exchange part and, on the other hand, a second port for the outlet manifold 39 of the refrigerant of the second exchange part. It also has, on either side of said raised portion 26, a third orifice for the outlet manifold 35 of the refrigerant of the first exchange part and a fourth orifice for the inlet manifold 37 of the refrigerant in the second exchange part. Near the ends of their opposite longitudinal side, it has a stamping height identical to that of said raised portion 26, provided with an orifice to allow communication between the coolant blades located on either side of the refrigerant blade involved.
  • the other plates of the stack are used to define said coolant blades. They are provided with orifices and stampings allowing in correspondence with the stampings and the orifices of the first plates to define said manifolds 22, 24, 33, 35, 37, 39.
  • the heat exchange parts 13, 15 may comprise separate coolant circuits 17 ', 17 ", respectively, as shown in FIG. 7, the arrows representing the direction of circulation of the coolant. of each of these circuits 17 ', 17 “of the coolant. Said second plates may or may not be provided with a raised portion forming a barrier, depending on the number of desired cooling circuits.
  • the first heat exchange part 13 may comprise, as shown in FIG. 6, partitions 41 parallel to the plates 19, alternately arranged in said inlet manifold 33 of the refrigerant and said outlet manifold 35 of the refrigerant. , in order to conduct the refrigerant in the first heat exchange part 13 in various successive passes of circulation according to the arrows 43, for example in passes in which the circulation of the fluid follows an opposite direction of a pass to the another, like a serpentine circulation.
  • the invention thus provides a condenser with reserve, particularly for a motor vehicle air conditioning circuit, simple structure and efficient operation.

Landscapes

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

Abstract

The invention concerns a condenser (1) for an air-conditioning circuit, said condenser comprising a housing (5) configured to be linked to a refrigerant supply (3), the housing (5) accommodating a first part (13) for exchanging heat between the refrigerant and a coolant, the first part (13) being configured to deliver the refrigerant to the refrigerant supply (3), and a second part (15) for exchanging heat configured to carry out an additional heat exchange between the refrigerant and the coolant at the outlet of said supply (3).

Description

Condenseur avec réserve de fluide frigorigène pour circuit de climatisation  Condenser with refrigerant reserve for air conditioning circuit
L'invention concerne un condenseur avec réserve de fluide frigorigène pour un circuit de climatisation, en particulier pour véhicule automobile. The invention relates to a condenser with refrigerant reserve for an air conditioning circuit, in particular for a motor vehicle.
Dans ce domaine, il est connu de longue date des condenseurs situés en face avant des véhicules. Ils assurent un échange de chaleur entre un fluide frigorigène circulant dans le condenseur et un flux d'air incident. Ils sont parfois accompagnés d'une réserve ou bouteille de fluide frigorigène et muni d'une portion permettant de réaliser un sous-refroidissement dudit fluide frigorigène en sortie de la réserve. In this field, it is known for a long time condensers located on the front of vehicles. They provide a heat exchange between a refrigerant circulating in the condenser and a flow of incident air. They are sometimes accompanied by a reserve or bottle of refrigerant and provided with a portion for subcooling said refrigerant output of the reserve.
Il est également connu des condenseurs comprenant un premier bloc d'échange de chaleur pour le refroidissement du fluide frigorigène par un liquide caloporteur et un deuxième bloc d'échange de chaleur pour le sous-refroidissement du fluide frigorigène par le liquide caloporteur, une réserve de fluide frigorigène étant interposée entre les blocs d'échange de chaleur. Lesdits blocs comportent des plaques empilées définissant entre elles des lames de circulation du fluide frigorigène, en sorte qu'une lame de fluide frigorigène se trouve entre deux lames de fluide de refroidissement. Une telle solution avec deux empilements de plaques présente cependant un faible degré d'intégration. It is also known condensers comprising a first heat exchange block for cooling the refrigerant by a heat transfer liquid and a second heat exchange block for the subcooling of the refrigerant by the coolant, a reserve of refrigerant being interposed between the heat exchange blocks. Said blocks comprise stacked plates defining between them refrigerant circulation blades, so that a refrigerant blade is located between two cooling fluid blades. Such a solution with two stacks of plates, however, has a low degree of integration.
Dans un souci d'amélioration, il a été proposé un condenseur dans lequel la réserve de fluide frigorigène est intégrée dans l'empilement, en étant positionnée transversalement aux plaques. Une telle réserve n'est cependant pas dans la meilleure des configurations de fonctionnement. En effet, la hauteur axiale de la réserve, correspondant à la hauteur de l'empilement, est limitée par le nombre de plaques employées. For the sake of improvement, it has been proposed a condenser in which the refrigerant reserve is integrated in the stack, being positioned transversely to the plates. Such a reserve is however not in the best of the operating configurations. Indeed, the axial height of the reserve, corresponding to the height of the stack, is limited by the number of plates used.
Il existe donc un besoin pour améliorer de tels condenseurs et l'invention propose en ce sens un condenseur pour un circuit de climatisation, ledit condenseur comprenant un boîtier configuré pour être relié à une réserve de fluide frigorigène, dite aussi bouteille, le boîtier logeant une première partie d'échange de chaleur entre le fluide frigorigène et un liquide de refroidissement, ladite première partie étant configurée pour acheminer le fluide frigorigène à la réserve de fluide frigorigène, et une deuxième partie d'échange de chaleur configurée pour réaliser un complément d'échange de chaleur entre le fluide frigorigène et le liquide de refroidissement en sortie de ladite réserve. There is therefore a need to improve such condensers and the invention proposes in this sense a condenser for an air conditioning circuit, said condenser comprising a housing configured to be connected to a reserve of refrigerant, also called bottle, the housing housing a first heat exchange part between the refrigerant and a coolant, said first portion being configured to convey the refrigerant to the refrigerant reservoir, and a second heat exchange portion configured to perform additional heat exchange between the refrigerant and the cooling liquid leaving said reserve.
Il en résulte que la réserve de fluide frigorigène n'est pas confinée dans le boîtier mais peut s'étendre librement en longueur, de préférence sur la longueur du boîtier, étant par exemple adjacente à un côté de longueur du boîtier, pour s'étendre sur une longueur importante et dans un encombrement réduit. En outre, on dispose de deux zones d'échange de chaleur dans un seul et même ensemble ce qui permet de limiter le nombre de composants du condenseur. As a result, the refrigerant reserve is not confined in the housing but can extend freely in length, preferably over the length of the housing, being for example adjacent to a length side of the housing, to extend over a long length and in a small footprint. In addition, there are two heat exchange zones in one and the same set which limits the number of components of the condenser.
Ladite réserve de fluide frigorigène est avantageusement fixée au boîtier, de préférence par une bride comportant des tubulures d'entrée et de sortie du fluide frigorigène dans ou de cette dernière, respectivement. Said refrigerant reserve is advantageously fixed to the housing, preferably by a flange having inlet and outlet pipes for the refrigerant in or of the latter, respectively.
Le condenseur comporte avantageusement au moins un circuit de liquide de refroidissement desdites parties d'échange de chaleur, lequel peut être commun auxdites parties d'échange de chaleur ou distinct pour chacune d'elles. The condenser advantageously comprises at least one coolant circuit of said heat exchange portions, which may be common to said heat exchange parts or separate for each of them.
Le condenseur comporte avantageusement un ensemble de plaques empilées définissant entre elles des lames de circulation du fluide frigorigène et du fluide de refroidissement dans lesdites parties d'échange de chaleur, en particulier en sorte qu'une lame de fluide frigorigène se trouve entre deux lames de fluide de refroidissement, ledit ensemble de plaques empilées étant configuré pour ménager un chemin de circulation du fluide frigorigène permettant une circulation en série du fluide frigorigène dans le boîtier, depuis la première partie d'échange de chaleur vers la réserve de fluide, puis de cette dernière dans la deuxième partie d'échange de chaleur. Ledit ensemble de plaques empilées est avantageusement configuré pour ménager un chemin de circulation du fluide de refroidissement s'étendant dans lesdites parties d'échange de chaleur, de préférence de la deuxième partie d'échange de chaleur à la première partie d'échange de chaleur. En variante, il pourra définir deux chemins distincts, respectivement associés aux circuits distincts évoqués plus haut. The condenser advantageously comprises a set of stacked plates defining between them circulation blades of the refrigerant and the cooling fluid in said heat exchange parts, in particular so that a refrigerant blade is located between two cooling plates. cooling fluid, said set of stacked plates being configured to provide a refrigerant flow path for a series circulation of the refrigerant in the housing, from the first heat exchange portion to the fluid reservoir, and thereafter last in the second part of heat exchange. Said set of stacked plates is advantageously configured to provide a coolant flow path extending in said heat exchange portions, preferably from the second heat exchange portion to the first heat exchange portion. . As a variant, it will be able to define two distinct paths, respectively associated with the distinct circuits mentioned above.
En particulier, ledit empilement de plaques est configuré pour définir une barrière à la circulation du fluide frigorigène entre les première et seconde parties d'échange de chaleur. In particular, said stack of plates is configured to define a barrier to the flow of refrigerant between the first and second heat exchange portions.
Cela étant, chacune desdites plaques s'étend avantageusement en continuité de matière au niveau de ladite première partie d'échange de chaleur et de ladite seconde partie d'échange de chaleur. That being so, each of said plates advantageously extends in continuity of material at said first heat exchange portion and said second heat exchange portion.
Une plaque de condenseur définissant une dite lame de circulation du fluide frigorigène pourra ainsi comprendre une partie relevée pour définir ladite barrière à la circulation du fluide frigorigène entre les première et seconde parties d'échange de chaleur. A condenser plate defining a said refrigerant circulation blade may thus comprise a portion raised to define the said barrier to the circulation of the refrigerant between the first and second heat exchange parts.
Ledit empilement de plaques comporte avantageusement des collecteurs d'entrée et/ou sortie du fluide frigorigène, communiquant avec lesdites lames de circulation du fluide frigorigène au niveau de ladite première partie et/ou seconde partie d'échange de chaleur, et/ou des collecteurs d'entrée et/ou sortie du liquide de refroidissement, communiquant avec lesdites lames de circulation du liquide de refroidissement. Said stack of plates advantageously comprises refrigerant inlet and / or outlet collectors, communicating with said refrigerant circulation blades at said first part and / or second heat exchange part, and / or collectors. inlet and / or outlet of the coolant, communicating with said coolant circulation blades.
Lesdits collecteurs d'entrée et/ou sortie du fluide frigorigène et lesdits collecteurs d'entrée et/ou sortie du liquide de refroidissement débouchent avantageusement sur un côté du boîtier et/ou sur un côté opposé, destiné à être en vis-à- vis de ladite réserve. Lesdits collecteurs d'entrée du fluide frigorigène dans la première partie d'échange et de sortie du fluide frigorigène de la seconde partie d'échange, d'une part, et lesdits collecteurs d'entrée du fluide frigorigène dans la seconde partie d'échange et de sortie du fluide frigorigène de la première partie d'échange, d'autre part, débouchent avantageusement sur des côtés opposés du boîtier. Said inlet and / or outlet collectors of the refrigerant and said inlet and / or outlet collectors coolant advantageously open on one side of the housing and / or on an opposite side, intended to be vis-à-vis of said reservation. Said refrigerant inlet manifolds in the first refrigerant exchange and outlet part of the second exchange part, on the one hand, and said refrigerant inlet manifolds in the second exchange part. and leaving the refrigerant fluid of the first exchange part, on the other hand, advantageously open on opposite sides of the housing.
Selon d'autres modes de réalisation de l'invention, qui peuvent être pris ensemble ou séparément : According to other embodiments of the invention, which can be taken together or separately:
- lesdits collecteurs débouchent du boîtier par des ouvertures et/ou des brides d'entrée et/ou sortie de fluide ; said collectors open out of the housing through openings and / or inlet and / or fluid outlet flanges;
- le collecteur d'entrée de fluide frigorigène dans ladite première partie d'échange est situé en regard de l'ouverture d'entrée du fluide frigorigène dans le boîtier et le collecteur de sortie du fluide frigorigène de ladite première partie d'échange est situé en regard de l'ouverture d'entrée du fluide frigorigène dans la réserve ;  - The refrigerant inlet manifold in said first exchange portion is located opposite the refrigerant inlet opening in the housing and the refrigerant outlet manifold of said first exchange portion is located opposite the inlet opening of the refrigerant in the reserve;
- la première partie d'échange de chaleur s'étend dans le boîtier entre ledit collecteur d'entrée du fluide frigorigène dans ladite première partie d'échange et ledit collecteur de sortie du fluide frigorigène de ladite première partie d'échange ; the first heat exchange part extends in the housing between said refrigerant inlet manifold in said first exchange part and said refrigerant outlet manifold of said first exchange part;
- le collecteur d'entrée de fluide frigorigène dans ladite seconde partie d'échange est disposé en regard de l'ouverture de sortie du fluide frigorigène de la réserve, et le collecteur de sortie du fluide frigorigène de ladite seconde partie d'échange est disposé en regard de l'ouverture de sortie du fluide frigorigène du boîtier ; - The refrigerant inlet manifold in said second exchange portion is disposed opposite the refrigerant outlet opening of the reserve, and the refrigerant outlet manifold of said second exchange portion is disposed facing the outlet opening of the refrigerant of the housing;
- la deuxième partie d'échange de chaleur s'étend entre ledit collecteur d'entrée du fluide frigorigène dans la seconde partie d'échange et ledit collecteur de sortie du fluide frigorigène de ladite deuxième partie d'échange de chaleur ;  the second heat exchange part extends between said refrigerant inlet manifold in the second exchange part and said refrigerant outlet manifold of said second heat exchange part;
- lesdits collecteurs d'entrée de fluide frigorigène dans la première partie d'échange et de sortie du fluide frigorigène de la seconde partie d'échange débouchent à proximité de deux côtés opposés du boîtier ;  said refrigerant inlet manifolds in the first refrigerant exchange and outlet part of the second exchange part open in proximity to two opposite sides of the housing;
- lesdits collecteurs d'entrée et de sortie du liquide de refroidissement débouchent avantageusement à proximité des mêmes dits côtés opposés ;  said inlet and outlet coolant collectors advantageously open near the same opposite sides;
- ledit ensemble de plaques empilées s'étend dans un volume parallélépipédique rectangle, correspondant par exemple à celui du boîtier ; - lesdits collecteurs d'entrée et de sortie du liquide de refroidissement et lesdits collecteurs d'entrée du fluide frigorigène dans la première partie d'échange et de sortie du fluide frigorigène de la seconde partie d'échange sont orientés parallèlement le long de quatre des arrêtes dudit boîtier; said set of stacked plates extends in a rectangular parallelepipedal volume corresponding, for example, to that of the housing; said coolant inlet and outlet manifolds and said refrigerant inlet manifolds in the first refrigerant exchange and outlet part of the second exchange part are oriented parallel along four of the arretes of said housing;
- les lames de circulation du liquide frigorigène et les lames de circulation du liquide de refroidissement présentent des sections différentes ; - The refrigerant circulation blades and coolant circulation blades have different sections;
- la première partie d'échange de chaleur comprend des cloisons parallèles aux plaques, disposées alternativement dans ledit collecteur d'entrée du fluide frigorigène et ledit collecteur de sortie du fluide frigorigène, en sorte de conduire le fluide frigorigène dans la première partie d'échange de chaleur suivant plusieurs passes de circulation du fluide, par exemple avec inversion du sens de circulation du fluide d'une passe à l'autre.  the first heat exchange part comprises partitions parallel to the plates, alternately arranged in said refrigerant inlet manifold and said refrigerant outlet manifold, so as to conduct the refrigerant in the first exchange part; of heat following several passes of fluid circulation, for example with reversal of the direction of fluid flow from one pass to another.
L'invention concerne également une plaque de condenseur tel que décrite ci- dessus ainsi que l'ensemble d'un tel condenseur et de la réserve correspondante. The invention also relates to a condenser plate as described above as well as the assembly of such a condenser and the corresponding reserve.
Ces caractéristiques et d'autres de la présente invention sont illustrées ci après en référence aux dessins annexés, sur lesquels : La figure 1 est une vue en perspective d'un mode de réalisation d'un condenseur conforme à l'invention ; These and other features of the present invention are illustrated below with reference to the accompanying drawings, in which: Figure 1 is a perspective view of an embodiment of a condenser according to the invention;
La figure 2 est une vue de dessous de ce condenseur ; La figure 3 est une vue schématique en coupe du condenseur selon la ligne B-B de la figure 2 ; Figure 2 is a bottom view of this condenser; Figure 3 is a schematic sectional view of the condenser along the line B-B of Figure 2;
La figure 4 est une vue schématique en coupe du condenseur selon la ligne A-A de la figure 2 ; Figure 4 is a schematic sectional view of the condenser along the line A-A of Figure 2;
La figure 5 est une vue agrandie partielle de collecteurs d'entrée et sortie du condenseur de la figure 4; La figure 6 est une vue schématique en coupe du chemin du fluide frigorigène d'un condenseur selon une variante de réalisation, et La figure 7 est une vue schématique d'un chemin de fluide de refroidissement du condenseur selon une variante de réalisation. Figure 5 is an enlarged partial view of the inlet and outlet manifolds of the condenser of Figure 4; Figure 6 is a schematic sectional view of the refrigerant path of a condenser according to an alternative embodiment, and Figure 7 is a schematic view of a cooling fluid path of the condenser according to an alternative embodiment.
Dans la description qui suit, des références identiques sont utilisées pour désigner des éléments analogues ou identiques. In the following description, identical references are used to designate similar or identical elements.
Comme illustré aux figures 1 à 4, l'invention concerne un condenseur 1 avec réserve 3 de fluide frigorigène ou bouteille pour un circuit de climatisation non représenté, notamment un circuit de conditionnement d'air pour véhicule automobile. Ledit fluide frigorigène est, par exemple, le fluide connu sous le nom de R134a, ou autres. Ce condenseur 1 comprend un boîtier 5, de préférence parallélépipédique rectangle comme dans le présent cas, configuré pour être relié à la réserve 3 de fluide frigorigène, laquelle peut être montée à distance du boîtier 5 ou fixée adjacente au boîtier 5, comme dans le cas présent. Ladite réserve 3 est ici localisée en vis-à-vis d'un côté latéral 1 1 ' du boîtier, c'est- à-dire un côté du boîtier situé entre des côtés d'extrémité longitudinale 12, 14 dudit boîtier. Elle peut ainsi s'étendre sur une longueur importante et dans un volume d'encombrement réduit du condenseur. Comme on le voit aux figures 1 et 4, la réserve 3 de fluide frigorigène est fixée au boîtier 5 par une bride comportant deux tubulures 7, 9, respectivement, d'entrée et sortie du fluide frigorigène dans ou hors de cette réserve. As illustrated in FIGS. 1 to 4, the invention relates to a condenser 1 with refrigerant reserve 3 or bottle for an air conditioning circuit not shown, in particular an air conditioning circuit for a motor vehicle. Said refrigerant is, for example, the fluid known as R134a, or the like. This condenser 1 comprises a housing 5, preferably parallelepiped rectangle as in the present case, configured to be connected to the reserve 3 of refrigerant, which can be mounted at a distance from the housing 5 or attached adjacent to the housing 5, as in the case present. Said reserve 3 is here located in relation to a lateral side 1 1 'of the housing, that is to say a side of the housing located between longitudinal end sides 12, 14 of said housing. It can thus extend over a large length and in a compact space of the condenser. As seen in Figures 1 and 4, the reserve 3 of refrigerant is attached to the housing 5 by a flange having two pipes 7, 9, respectively, inlet and outlet of the refrigerant in or out of this reserve.
Le boîtier 5 loge une première partie 13 d'échange de chaleur, destinée ici à assurer la condensation du fluide frigorigène par un échange de chaleur avec un liquide de refroidissement, et une deuxième partie 15 d'échange de chaleur pour réaliser ici un sous refroidissement dudit fluide frigorigène par ledit liquide de refroidissement, en sortie de ladite réserve 3. On intègre de la sorte les deux parties d'échange de chaleur dans une seule et même unité structurelle. The housing 5 houses a first heat exchange part 13, intended here to ensure the condensation of the refrigerant by a heat exchange with a cooling liquid, and a second heat exchange part 15 to achieve here a sub-cooling of said refrigerant by said liquid of cooling, output of said reserve 3. Thus integrates the two heat exchange parts in one and the same structural unit.
Le liquide de refroidissement circule dans un circuit 17 de liquide de refroidissement desdites parties 13, 15 d'échange de chaleur, lequel peut être commun auxdites parties d'échange de chaleur, comme représenté à la figure 3, ou distinct pour chacune d'elles, comme représenté à la figure 7. Le liquide de refroidissement est, par exemple, de l'eau glycolée. Avec référence aux figures 3 à 5, le condenseur 1 comporte un ensemble de plaques 19 empilées selon une direction d'empilement, ici sensiblement orthogonale auxdites plaques. Avantageusement, ces plaques s'étendent en continuité de matière sur les première et deuxième parties d'échange de chaleur 13 et 15. Les plaques définissent entre elles des lames de circulation de fluide frigorigène 21 dans lesdites parties d'échange de chaleur, de sorte qu'une lame de fluide frigorigène 21 (figures 4) se trouve entre deux lames de fluide de refroidissement 23 dudit circuit 17 de liquide de refroidissement (figure 3). Lesdites lames de circulation présentent ici des hauteurs différentes. Lesdites lames sont constituées d'une tôle, notamment en aluminium et/ou alliage d'aluminium. Elles sont formées, par exemple, par emboutissage. Elles pourront être assemblées entre elles par brasage au niveau d'un bord relevé périphérique. The coolant flows in a coolant circuit 17 of said heat exchange portions 13, 15, which may be common to said heat exchange portions, as shown in FIG. 3, or separate for each of them as shown in FIG. 7. The cooling liquid is, for example, glycol water. With reference to Figures 3 to 5, the condenser 1 comprises a set of plates 19 stacked in a stacking direction, here substantially orthogonal to said plates. Advantageously, these plates extend in continuity of material on the first and second heat exchange parts 13 and 15. The plates define between them refrigerant circulation blades 21 in said heat exchange parts, so that a refrigerant blade 21 (FIG. 4) is located between two cooling fluid blades 23 of said coolant circuit 17 (FIG. 3). Said circulation blades here have different heights. Said blades consist of a sheet, in particular aluminum and / or aluminum alloy. They are formed, for example, by stamping. They can be assembled together by soldering at a peripheral raised edge.
Ledit ensemble de plaques 19 empilées constitue ici le boîtier 5, lequel peut encore être conformé pour loger ledit ensemble de plaques 19 empilées. Said set of plates 19 stacked here constitutes the housing 5, which can be further shaped to accommodate said set of plates 19 stacked.
Ledit ensemble de plaques 19 empilées est configuré pour ménager un chemin de circulation du fluide frigorigène permettant une circulation en série du fluide frigorigène dans le boîtier 5, depuis la première partie 13 d'échange de chaleur vers la réserve 3 de fluide, puis de cette dernière dans la deuxième partie 15 d'échange de chaleur, comme il est représenté à la figure 4 suivant les flèches. Le fluide frigorigène condensé dans la première partie 13 d'échange de chaleur est ainsi acheminé à la réserve 3 de fluide frigorigène, laquelle assure une séparation de phases gaz-liquide du fluide frigorigène et/ou réalise une filtration et/ou une déshydratation de ce dernier. Said set of stacked plates 19 is configured to provide a refrigerant circulation path allowing a series circulation of the refrigerant in the housing 5, from the first heat exchange portion 13 to the fluid reservoir 3, and then to last in the second part of heat exchange, as shown in Figure 4 following the arrows. The refrigerant condensed in the first heat exchange part 13 is thus conveyed to the refrigerant reserve 3, which ensures a gas-liquid phase separation of the refrigerant and / or performs filtration and / or dehydration of the refrigerant. latest.
Ledit ensemble de plaques 19 empilées est en outre configuré pour ménager ledit chemin 17 de circulation du fluide de refroidissement s'étendant dans lesdites parties 13, 15 d'échange de chaleur, plus précisément de la deuxième partie 15 d'échange de chaleur à la première partie 13 d'échange de chaleur, comme il est représenté à la figure 3 suivant les flèches afin de réaliser un refroidissement à contre-courant. Said set of stacked plates 19 is further configured to provide for said cooling fluid circulation path 17 extending in said heat exchange portions 13, 15, more precisely of the second heat exchange portion 15 to the first portion 13 of heat exchange, as shown in Figure 3 according to the arrows to achieve a countercurrent cooling.
Ledit empilement de plaques 19 comportent des collecteurs d'entrée 33, 37 et/ou de sortie 35, 39 du fluide frigorigène, communiquant avec lesdites lames de circulation du fluide frigorigène au niveau de la ladite première et/ou seconde partie d'échange de chaleur. Il comporte en outre des collecteurs d'entrée 22 et/ou de sortie 24 du liquide de refroidissement, communiquant avec lesdites lames de circulation du liquide de refroidissement. Lesdits collecteurs 22, 24, 33, 35, 37, 39 débouchent soit au niveau du côté latéral 1 1 ' du boîtier situé en vis-à-vis de ladite réserve 3, soit en au niveau du côté latéral 1 1 opposé, c'est-à-dire au niveau des côtés latéraux du boîtier orientés perpendiculairement à la direction d'empilement des plaques. En effet, lesdits collecteurs 22, 24, 33, 35, 37, 39 s'étendent avantageusement parallèlement les uns aux autres et parallèlement à la direction d'empilement. Said stack of plates 19 comprise inlet manifolds 33, 37 and / or outlet 35, 39 of the refrigerant, communicating with said refrigerant circulation blades at said first and / or second exchange part of the refrigerant. heat. It further comprises inlet manifolds 22 and / or outlet 24 of the coolant, communicating with said coolant circulation blades. Said manifolds 22, 24, 33, 35, 37, 39 open either at the lateral side 1 1 'of the housing located vis-à-vis said reserve 3, or at the side of the opposite side 1 1, c' that is to say at the lateral sides of the housing oriented perpendicular to the stacking direction of the plates. Indeed, said collectors 22, 24, 33, 35, 37, 39 advantageously extend parallel to each other and parallel to the stacking direction.
Ici, lesdits collecteurs d'entrée 33 du fluide frigorigène dans la première partie d'échange 13 et de sortie 39 du fluide frigorigène de la seconde partie d'échange 15, d'une part, et lesdits collecteurs d'entrée 37 du fluide frigorigène dans la seconde partie d'échange 15 et de sortie 35 du fluide frigorigène de la première partie d'échange 13, d'autre part, débouchent de façon opposé au niveau desdits côtés latéraux 1 1 , 1 1 ' perpendiculaires à la direction d'empilement. On peut noter qu'une telle caractéristique permet à la réserve 3 de s'étendre en longueur jusqu'à l'aplomb dudit collecteur d'entrée 33 du fluide frigorigène dans ladite première partie d'échange. Lesdits collecteurs d'entrée 22 et de sortie 24 du liquide de refroidissement débouchent ici sur le côté latéral 1 1 opposé à celui 1 1 ' se trouvant en vis-à-vis de la réserve 3. Here, said inlet manifolds 33 of the refrigerant in the first exchange part 13 and the outlet part 39 of the refrigerant of the second exchange part 15, on the one hand, and the said inlet manifolds 37 of the refrigerant in the second exchange part 15 and outlet 35 of the refrigerant of the first exchange part 13, on the other hand, open in an opposite manner at the level of said lateral sides 1 1, 1 1 'perpendicular to the direction of stack. We can note such a characteristic allows the reserve 3 to extend in length up to plumb with said inlet manifold 33 of the refrigerant in said first exchange part. Said inlet manifolds 22 and outlet 24 of the coolant open here on the lateral side 1 1 opposite to that 1 1 'vis-à-vis the reserve 3.
Les collecteurs d'entrée 22 et de sortie 24 du liquide de refroidissement, d'entrée 33 du fluide frigorigène dans la première partie d'échange de chaleur et de sortie 39 du fluide frigorigène de la seconde partie d'échange de chaleur débouchent dans des ouvertures du boîtier, formées ici en tant que tubulures d'entrée 29 et sortie 31 du liquide de refroidissement et tubulures d'entrée 25 et sortie 27 du fluide frigorigène. Les autres collecteurs 35 et 37 débouchent sur les tubulures 7 et 9 de la réserve. The inlet manifolds 22 and outlet 24 of the coolant, inlet 33 of the refrigerant in the first portion of heat exchange and outlet 39 of the refrigerant of the second heat exchange portion open into housing openings, formed here as inlet manifolds 29 and outlet 31 of the coolant and inlet pipes 25 and outlet 27 of the refrigerant. The other manifolds 35 and 37 open on the pipes 7 and 9 of the reserve.
Lesdits collecteurs d'entrée 33 de fluide frigorigène dans la première partie d'échange et de sortie 39 du fluide frigorigène de la seconde partie d'échange débouchent à proximité des deux côtés 12, 14 d'extrémité longitudinale du boîtier. De même, lesdits collecteurs d'entrée 22 et de sortie 24 du liquide de refroidissement débouchent à proximité desdits côtés opposés 12, 14 d'extrémité longitudinale du boîtier. Said refrigerant inlet manifolds 33 in the first exchange and outlet portion 39 of the refrigerant of the second exchange portion open near the two longitudinal end sides 12, 14 of the housing. Similarly, said inlet manifolds 22 and outlet 24 of the coolant open in proximity to said opposite sides 12, 14 of the longitudinal end of the housing.
Dans la configuration parallélépipédique illustrée, lesdits collecteurs d'entrée 22 et de sortie 24 du liquide de refroidissement et lesdits collecteurs d'entrée 33 du fluide frigorigène dans la première partie d'échange et de sortie 39 du fluide frigorigène de la seconde partie d'échange pourront avantageusement être orientés parallèlement le long de quatre des arrêtes dudit boîtier. Ainsi, lesdites tubulures d'entrée et de sortie 22, 24, 25, 27 sont avantageusement disposées au niveau des quatre coins du côté latéral 1 1 opposé au côté latéral 1 1 ' situé en vis- à-vis de ladite bouteille. En plaçant lesdits collecteurs 22, 24, 33, 39 au niveau de côtés opposés du boîtier, le fluide frigorigène et le liquide de refroidissement circulent sur une étendue maximale. In the illustrated parallelepipedic configuration, said inlet manifolds 22 and outlet 24 of the coolant and said inlet manifolds 33 of the refrigerant in the first exchange and outlet part 39 of the refrigerant of the second part of exchange can advantageously be oriented parallel along four edges of said housing. Thus, said inlet and outlet pipes 22, 24, 25, 27 are advantageously arranged at the four corners of the lateral side 1 1 opposite the lateral side 1 1 'situated vis-à-vis said bottle. By placing said collectors 22, 24, 33, 39 at the level of opposite sides of the housing, the refrigerant and coolant flow over a maximum extent.
Ledit collecteur d'entrée 33 de fluide frigorigène dans ladite première partie d'échange est situé en regard de la tubulure d'entrée 25 du fluide frigorigène dans le boîtier et le collecteur 35 de sortie du fluide frigorigène de ladite première partie d'échange est situé en regard de l'ouverture d'entrée du fluide frigorigène dans la réserve 3, communiquant ici avec une première 7 des tubulures de la bride d'accrochage de ladite réserve audit boîtier. La première partie d'échange de chaleur s'étend dans le boîtier entre ledit collecteur d'entrée 33 du fluide frigorigène dans ladite première partie d'échange et ledit collecteur de sortie 35 du fluide frigorigène de ladite première partie d'échange. Said refrigerant inlet manifold 33 in said first exchange portion is located opposite the refrigerant inlet manifold 25 in the housing and the refrigerant outlet manifold 35 of said first exchange portion is located opposite the inlet opening of the refrigerant in the reserve 3, communicating here with a first 7 of the tubes of the attachment flange of said reserve said housing. The first heat exchange portion extends into the housing between said inlet manifold 33 of the refrigerant in said first exchange portion and said refrigerant outlet manifold 35 of said first exchange portion.
Le collecteur d'entrée 37 de fluide frigorigène dans ladite seconde partie d'échange est disposé en regard de l'ouverture de sortie du fluide frigorigène de la réserve 3, communiquant ici avec une seconde 9 des tubulures de la bride d'accrochage de ladite réserve audit boîtier, et le collecteur de sortie 39 du fluide frigorigène de ladite seconde partie d'échange est disposé en regard de la tubulure de sortie 27 du fluide frigorigène du boîtier. La deuxième partie d'échange de chaleur s'étend entre ledit collecteur d'entrée 37 du fluide frigorigène dans la seconde partie d'échange et ledit collecteur de sortie 39 du fluide frigorigène de ladite deuxième partie d'échange de chaleur. The inlet manifold 37 of refrigerant in said second exchange portion is disposed opposite the outlet opening of the refrigerant of the reserve 3, communicating here with a second 9 of the tubes of the fastening flange of said reserve said housing, and the outlet manifold 39 of the refrigerant of said second exchange portion is disposed opposite the outlet pipe 27 of the refrigerant housing. The second heat exchange portion extends between said inlet manifold 37 of the refrigerant in the second exchange portion and said refrigerant outlet manifold 39 of said second heat exchange portion.
Cela étant, ledit empilement de plaques 19 est configuré pour définir une barrière à la circulation du fluide frigorigène entre les première 13 et seconde 15 parties d'échange de chaleur. That said, said stack of plates 19 is configured to define a barrier to the flow of refrigerant between the first 13 and second 15 heat exchange portions.
Comme plus particulièrement visible à la figure 5, les plaques 19, dite première plaques, définissant les lames de circulation du fluide frigorigène présente une partie relevée 26 définissant ladite barrière. La hauteur de ladite partie relevée correspond à la hauteur des lames de fluide frigorigène. Ledit bord relevé s'étend sur la largeur desdites première plaques, c'est-à-dire, ici, de l'un des côtés latéraux 16 du boîtier reliant lesdits côtés latéraux 1 1 , 1 1 ' perpendiculaires à la direction d'empilement au côté latéral 18 opposé. As more particularly visible in Figure 5, the plates 19, said first plates, defining the refrigerant circulation blades has a raised portion 26 defining said barrier. The height of said raised portion corresponds to the height of the refrigerant blades. Said raised edge extends over the width of said first plates, that is to say, here, one of the sides side 16 of the housing connecting said lateral sides 1 1, 1 1 'perpendicular to the stacking direction at the opposite side side 18.
Lesdites premières plaques 19 présentent à proximité des extrémités de l'un leurs côtés longitudinaux, d'une part, un premier orifice pour le collecteur d'entrée 33 du fluide frigorigène dans la première partie d'échange et, d'autre part, un second orifice pour le collecteur de sortie 39 du fluide frigorigène de la seconde partie d'échange. Elle présente de plus, de part et d'autre de ladite partie relevé 26, un troisième orifice pour le collecteur de sortie 35 du fluide frigorigène de la première partie d'échange et un quatrième orifice pour le collecteur d'entrée 37 du fluide frigorigène dans la seconde partie d'échange. A proximité des extrémités de leur côté longitudinal opposé, elle présente un embouti de hauteur identique à celle de ladite partie relevée 26, muni d'un orifice pour permettre une communication entre les lames de liquide de refroidissement se trouvant de part et d'autre de la lame de fluide frigorigène en cause. Said first plates 19 have, near the ends of one, their longitudinal sides, on the one hand, a first orifice for the inlet manifold 33 of the refrigerant in the first exchange part and, on the other hand, a second port for the outlet manifold 39 of the refrigerant of the second exchange part. It also has, on either side of said raised portion 26, a third orifice for the outlet manifold 35 of the refrigerant of the first exchange part and a fourth orifice for the inlet manifold 37 of the refrigerant in the second exchange part. Near the ends of their opposite longitudinal side, it has a stamping height identical to that of said raised portion 26, provided with an orifice to allow communication between the coolant blades located on either side of the refrigerant blade involved.
Les autres plaques de l'empilement, dites secondes plaques, servent à définir lesdites lames de liquide de refroidissement. Elles sont munies des orifices et des emboutis permettant en correspondance avec les emboutis et les orifices des premières plaques de définir lesdites collecteurs 22, 24, 33, 35, 37, 39. The other plates of the stack, called second plates, are used to define said coolant blades. They are provided with orifices and stampings allowing in correspondence with the stampings and the orifices of the first plates to define said manifolds 22, 24, 33, 35, 37, 39.
Des variantes de réalisation sont à présent décrites. Alternative embodiments are now described.
Comme indiqué précédemment, les parties d'échange de chaleur 13, 15 peuvent comporter des circuits de liquide de refroidissement distincts 17', 17", respectivement, tel que représenté à la figure 7, les flèches représentant le sens de circulation du liquide de refroidissement de chacun de ces circuits 17', 17" du liquide de refroidissement. Lesdites secondes plaques pourront ou non être ainsi munies d'une partie relevée formant barrière, en fonction du nombre de circuits de refroidissement désirés. De plus, la première partie 13 d'échange de chaleur pourra comprendre comme représenté à la figure 6, des cloisons 41 parallèles aux plaques 19, disposées alternativement dans ledit collecteur d'entrée 33 du fluide frigorigène et ledit collecteur de sortie 35 du fluide frigorigène, afin de conduire le fluide frigorigène dans la première partie 13 d'échange de chaleur suivant diverses passes successives de circulation selon les flèches 43, par exemple selon des passes dans lequel la circulation du fluide suit une direction opposée d'une passe à l'autre, telle une circulation en serpentin. As indicated above, the heat exchange parts 13, 15 may comprise separate coolant circuits 17 ', 17 ", respectively, as shown in FIG. 7, the arrows representing the direction of circulation of the coolant. of each of these circuits 17 ', 17 "of the coolant. Said second plates may or may not be provided with a raised portion forming a barrier, depending on the number of desired cooling circuits. In addition, the first heat exchange part 13 may comprise, as shown in FIG. 6, partitions 41 parallel to the plates 19, alternately arranged in said inlet manifold 33 of the refrigerant and said outlet manifold 35 of the refrigerant. , in order to conduct the refrigerant in the first heat exchange part 13 in various successive passes of circulation according to the arrows 43, for example in passes in which the circulation of the fluid follows an opposite direction of a pass to the another, like a serpentine circulation.
L'invention apporte ainsi un condenseur avec réserve, notamment pour circuit de conditionnement d'air de véhicule automobile, de structure simple et de fonctionnement efficace. The invention thus provides a condenser with reserve, particularly for a motor vehicle air conditioning circuit, simple structure and efficient operation.

Claims

Revendications claims
Condenseur (1 ) pour un circuit de climatisation, ledit condenseur comprenant un boîtier (5) configuré pour être relié à une réserve (3) de fluide frigorigène, le boîtier (5) logeant une première partie (13) d'échange de chaleur entre le fluide frigorigène et un liquide de refroidissement, ladite première partie (13) étant configurée pour acheminer le fluide frigorigène à la réserve (3) de fluide frigorigène, et une deuxième partie (15) d'échange de chaleur configurée pour réaliser un complément d'échange de chaleur entre le fluide frigorigène et le liquide de refroidissement en sortie de ladite réserve (3). Condenser (1) for an air-conditioning circuit, said condenser comprising a housing (5) configured to be connected to a reserve (3) of refrigerant, the housing (5) housing a first heat exchange part (13) between the refrigerant and a coolant, said first portion (13) being configured to convey the refrigerant to the refrigerant reservoir (3), and a second heat exchange portion (15) configured to perform a complement of exchange of heat between the refrigerant and the coolant at the outlet of said supply (3).
Condenseur (1 ) selon la revendication 1 , comprenant un circuit (17) de liquide de refroidissement commun auxdites parties (13, 15) d'échange de chaleur. The condenser (1) of claim 1 including a coolant circuit (17) common to said heat exchange portions (13,15).
Condenseur (1 ) selon la revendication 1 , comprenant un circuit (17', 17") distinct pour chacune desdites parties (13, 15) d'échange de chaleur. The condenser (1) of claim 1 comprising a separate circuit (17 ', 17 ") for each of said heat exchange portions (13, 15).
Condenseur (1 ) selon une quelconque des revendications 1 à 3, dans lequel ledit boîtier comprend un ensemble de plaques (19) empilées définissant entre elles des lames (21 , 23) de circulation du fluide frigorigène et du fluide de refroidissement dans lesdites parties (13, 15) d'échange de chaleur, ledit ensemble de plaques (19) étant configuré pour ménager un chemin de circulation du fluide frigorigène permettant une circulation en série dudit fluide frigorigène dans le boîtier (5), depuis la première partie (13) d'échange de chaleur vers la réserve (3) de fluide, puis de cette dernière dans la deuxième partie (15) d'échange de chaleur. Condenser (1) according to any one of claims 1 to 3, wherein said housing comprises a set of plates (19) stacked defining between them blades (21, 23) for circulation of the refrigerant and cooling fluid in said parts ( 13, 15), said plate assembly (19) being configured to provide a refrigerant flow path for serially circulating said refrigerant in the housing (5) from the first portion (13). heat exchange to the reserve (3) fluid, and then the latter in the second portion (15) of heat exchange.
Condenseur (1 ) selon la revendication 4, dans lequel ledit empilement de plaques (9) est configuré pour ménager au moins un chemin de circulation du fluide de refroidissement s'étendant dans lesdites parties (13, 15) d'échange de chaleur. The condenser (1) according to claim 4, wherein said stack of plates (9) is configured to provide at least one path of circulation of cooling fluid extending into said heat exchange portions (13, 15).
Condenseur (1 ) selon l'une des revendications 4 ou 5, dans lequel chacune desdites plaques (19) s'étend en continuité de matière au niveau de ladite première partie (13) et de ladite seconde partie (15) d'échange de chaleur. Condenser (1) according to one of claims 4 or 5, wherein each of said plates (19) extends in continuity of material at said first portion (13) and said second exchange portion (15). heat.
Condenseur (1 ) selon l'une des revendications 4 à 6, dans lequel ledit empilement de plaques (19) comporte des collecteurs d'entrée (33, 37) et/ou sortie (35, 39) du fluide frigorigène communiquant avec lesdites lames de circulation du fluide frigorigène au niveau de ladite première partie (13) et/ou seconde partie (15) d'échange de chaleur, et/ou des collecteurs d'entrée (22) et/ou sortie (24) du liquide de refroidissement communiquant avec lesdites lames de circulation du liquide de refroidissement. Condenser (1) according to one of claims 4 to 6, wherein said stack of plates (19) comprises inlet manifolds (33, 37) and / or outlet (35, 39) of the refrigerant communicating with said blades for circulating the refrigerant at said first heat exchange portion (13) and / or second portion (15), and / or the coolant inlet (22) and / or outlet (24) manifolds communicating with said coolant circulation blades.
8. Condenseur (1 ) selon la revendication 7, dans lequel lesdits collecteurs d'entrée (33) et/ou sortie (39) du fluide frigorigène et lesdits collecteurs d'entrée (22) et/ou sortie (24) du liquide de refroidissement débouchent sur un côté (1 1 ) du boîtier et/ou sur un côté opposé (1 1 ') destiné à être en vis-à- vis de ladite réserve (3). 8. Condenser (1) according to claim 7, wherein said inlet manifolds (33) and / or outlet (39) of the refrigerant and said inlet manifolds (22) and / or outlet (24) of the liquid of cooling open on one side (1 1) of the housing and / or on an opposite side (1 1 ') intended to be vis-à-vis said reserve (3).
9. Condenseur (1 ) selon la revendication 7, dans lequel lesdits collecteurs d'entrée (33) du fluide frigorigène dans la première partie d'échange (13) et de sortie (39) du fluide frigorigène de la seconde partie d'échange (15), d'une part, et lesdits collecteurs d'entrée (37) du fluide frigorigène dans la seconde partie d'échange (15) et de sortie (35) du fluide frigorigène de la première partie d'échange (13), d'autre part, débouchent sur des côtés opposés (1 1 , 1 1 ') du boîtier. 9. Condenser (1) according to claim 7, wherein said inlet manifolds (33) of the refrigerant in the first exchange part (13) and outlet (39) of the refrigerant of the second exchange part. (15), on the one hand, and said refrigerant inlet manifolds (37) in the second exchange (15) and outlet (35) portion of the refrigerant of the first exchange part (13). on the other hand, open on opposite sides (1 1, 1 1 ') of the housing.
10. Condenseur (1 ) selon l'une des revendications 7 à 9, dans lequel ledit ensemble de plaques (19) empilées s'étend dans un volume parallélépipédique rectangle, lesdits collecteurs d'entrée (22) et de sortie (24) du liquide de refroidissement et lesdits collecteurs d'entrée (33) du fluide frigorigène dans la première partie d'échange (13) et de sortie (39) du fluide frigorigène de la seconde partie d'échange (15) étant orientés parallèlement le long de quatre des arrêtes dudit boîtier (5). 10. Condenser (1) according to one of claims 7 to 9, wherein said set of plates (19) stacked extends in a rectangular parallelepiped volume, said inlet manifolds (22) and outlet (24) of coolant and said refrigerant inlet manifolds (33) in the first exchange (13) and refrigerant outlet (39) portions of the second exchange portion (15) being oriented parallel along the four of the edges of said housing (5).
11. Condenseur (1 ) selon l'une des revendications 7 à 10, dans lequel la première partie (13) d'échange de chaleur comprend des cloisons (41 ) parallèles aux plaques (19), disposées alternativement dans ledit collecteur d'entrée (33) et de sortie (35) du fluide frigorigène de la première partie d'échange (13), afin de conduire le fluide frigorigène dans la première partie (13) d'échange de chaleur suivant plusieurs passes de circulation (43) du fluide. 11. Condenser (1) according to one of claims 7 to 10, wherein the first portion (13) of heat exchange comprises partitions (41) parallel to the plates (19), arranged alternately in said inlet manifold (33) and outlet (35) of the refrigerant of the first exchange part (13), in order to conduct the refrigerant in the first part (13) of heat exchange following several circulation passes (43) of the fluid.
12. Condenseur (1 ) selon l'une des revendications 4 à 1 1 , dans lequel ledit empilement de plaques (19) est configuré pour définir une barrière (26) à la circulation du fluide frigorigène entre les première (13) et seconde (1 5) parties d'échange de chaleur. 12. Condenser (1) according to one of claims 4 to 1 1, wherein said stack of plates (19) is configured to define a barrier (26) to the flow of refrigerant between the first (13) and second ( 1 5) heat exchange parts.
13. Condenseur (1 ) selon la revendications 12, dans lequel les plaques (19) définissant les lames de circulation du fluide frigorigène sont formées d'une tôle présentant une partie relevée définissant ladite barrière (26). 13. Condenser (1) according to claim 12, wherein the plates (19) defining the refrigerant circulation blades are formed of a sheet having a raised portion defining said barrier (26).
14. Plaque de condenseur selon la revendication 13. Condenser plate according to claim 13.
15. Ensemble d'un condenseur (1 ) selon l'une quelconque des revendications 1 à 13 et d'une réserve (3). 15. Set of a condenser (1) according to any one of claims 1 to 13 and a reserve (3).
EP13803019.2A 2012-12-21 2013-12-12 System of a condenser with a refrigerant supply for an air-conditioning circuit Not-in-force EP2936028B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1262711A FR3000183B1 (en) 2012-12-21 2012-12-21 CONDENSER WITH FRIGORIGENE FLUID RESERVE FOR AIR CONDITIONING CIRCUIT
PCT/EP2013/076399 WO2014095573A1 (en) 2012-12-21 2013-12-12 Condenser with a refrigerant supply for an air-conditioning circuit

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EP2936028A1 true EP2936028A1 (en) 2015-10-28
EP2936028B1 EP2936028B1 (en) 2021-03-03

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EP (1) EP2936028B1 (en)
JP (3) JP2016504557A (en)
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US20150323231A1 (en) 2015-11-12
FR3000183A1 (en) 2014-06-27
WO2014095573A1 (en) 2014-06-26
JP6797777B2 (en) 2020-12-09
JP2016504557A (en) 2016-02-12
CN104995474B (en) 2019-09-06
JP2018025389A (en) 2018-02-15
JP2019215154A (en) 2019-12-19
CN104995474A (en) 2015-10-21
US10254022B2 (en) 2019-04-09
EP2936028B1 (en) 2021-03-03
FR3000183B1 (en) 2018-09-14

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