EP2784425B1 - Échangeur de chaleur, en particulier condenseur - Google Patents

Échangeur de chaleur, en particulier condenseur Download PDF

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Publication number
EP2784425B1
EP2784425B1 EP13461512.9A EP13461512A EP2784425B1 EP 2784425 B1 EP2784425 B1 EP 2784425B1 EP 13461512 A EP13461512 A EP 13461512A EP 2784425 B1 EP2784425 B1 EP 2784425B1
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EP
European Patent Office
Prior art keywords
receiver
heat exchanger
core
connecting means
fluid
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.)
Active
Application number
EP13461512.9A
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German (de)
English (en)
Other versions
EP2784425A1 (fr
Inventor
Dawid Szostek
Grzegorz Romanski
Andrzej Fudala
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 Autosystemy Sp zoo
Original Assignee
Valeo Autosystemy Sp zoo
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 Autosystemy Sp zoo filed Critical Valeo Autosystemy Sp zoo
Priority to EP13461512.9A priority Critical patent/EP2784425B1/fr
Priority to PL13461512.9T priority patent/PL2784425T3/pl
Priority to PCT/EP2014/055512 priority patent/WO2014154546A1/fr
Publication of EP2784425A1 publication Critical patent/EP2784425A1/fr
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Publication of EP2784425B1 publication Critical patent/EP2784425B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • 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

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1, especially a condenser for an air conditioning unit.
  • a heat exchanger is known from Figure 6 of DE102011078136A1 . While being developed to be used in automotive vehicles, the invention shall not be limited thereto.
  • condensers located in a vehicle front end. They are made of core comprising tubes and fins located between the tubes. They provide a heat exchange between a refrigerant fluid flowing in the tubes and an air flow flowing through the fins.
  • the core is generally provided with a condensing portion and a sub cooling portion in which the refrigerant fluid flows coming from a receiver attached to the core.
  • Many solutions have been proposed to attach and connect the receiver and the core.
  • condensers comprising a core made of plates stacked along a stacking direction, said plates alternatively defining a flow passage for the refrigerant fluid and a cooling liquid to have both fluids exchanging heat there between.
  • the condensing portion and the sub cooling portions are defined by a corresponding number of plates.
  • the receiver is integrated between the two portions of the core.
  • the invention aims at mitigating such drawbacks and proposes in that view a heat exchanger according to claim 1.
  • the receiver By giving the receiver the opportunity to locate the receiver along a lateral side of the core, said receiver further being shifted relatively to said lateral side, the possibility to adapt the overall packaging of the heat exchanger to different constraints is enhanced.
  • the invention especially decreases the overall packaging along said stacking direction while still optimizing the integration of the receiver in the heat exchanger by achieving both supporting and fluid connecting functions with the same means.
  • the invention further gives the possibility to use receiver technologies coming from tubes and fins heat exchangers.
  • the invention relates to a heat exchanger between a first and a second fluid, especially a condenser for an air conditioning unit, more especially for automotive applications.
  • Said first fluid is for instance a refrigerant fluid, as the fluid known under R134a or R1234yf.
  • the heat exchanger is configured to have it enter under gaseous phase and exit under liquid phase.
  • the second fluid is for instance a cooling liquid as water added with some anti freeze like glycol.
  • the cooling liquid may be a mixture of water and glycol.
  • Said heat exchanger comprises a first core 1 and optionally a second core 5 stacked with said first core along a stacking direction D.
  • said first core is especially configured to achieve a condensation of said refrigerant fluid and said second core to achieve a subcooling thereof.
  • Said cores 1, 5 define flow passages for said first fluid and said second fluid stacked alternatively along said stacking direction to have both fluids exchanging heat there between.
  • Said cores 1, 5 are for instance made of plates 3 (better visible on figure 4 ) stacked along said stacking direction to define said passages.
  • a same plate defines a passage for the first fluid together with one of the adjoining plate and a passage for the second fluid with the other adjoining plate.
  • Said plates are for instance obtained by stamping a laminated plate of metal, especially aluminium and/or an aluminium alloy.
  • Said plates 3 may be of rectangular shape.
  • said first and second cores 1, 5 have a parallelepipedic shape with lateral sides 1 a, 1 b, 1 c, 1 d, 5a, 5b, 5c, 5d parallel to said stacking direction, top sides 2a, 5a and bottom sides 2b, 5b parallel to said stacking direction.
  • Said plates 3 comprise for instance a rising edge, defining with a bottom of said plate a volume in which said fluids flow.
  • Said plates are provided, for instance, with four holes managed in the bottom of said plates, two of said holes being provided for the circulation of the first fluid and two other of said holes for the circulation of the second fluid.
  • the holes for the circulation of the first fluid may be located along a first longitudinal side of said plate and the holes for the circulation of the other fluid along the other longitudinal side.
  • Said heat exchanger further comprise collecting means to have said first fluid flowing from one of said passage for the first to the next passage for the first fluid and said second fluid flowing from one of said passage for the second fluid to the next passage for the second fluid.
  • Said collecting means are for instance constituted by two embossed portion of said plate bottom, each provided with one of said holes. More precisely, two of said holes are provided in a flat portion of said plates bottom and the two others are provided at the top of said embossed portion. When stacked, the two holes of the embossed portion of one said plate are in communication with the two holes provided in the flat portion of the bottom of one of the adjoining plate. As a result, one of said fluid flows in the passage provided between said two plates and the other of said fluid flows through said holes from one of the adjoining passage to the other of the adjoining passage.
  • Said plates 3 of both first and second cores may be of the same type, the differences between the two cores optionally being the number of plates which are used to constitute them and the location of the holes in the plates. It can also be seen that said plates are stacked from bottom to top in said first core 1 and from top to bottom in said second core 5.
  • said heat exchanger further comprises here a receiver 7 for said first fluid.
  • Said receiver is connected upstream with said first core 1 and optionally downstream with said second core 5.
  • said receiver aims at separating the part of said refrigerant fluid potentially still in a gaseous phase from the part in liquid phase to let only said liquid phase part flow downstream. It may also aim at filtering and/or drying said refrigerant fluid.
  • Said receiver 7 comprises for instance a cylindrical tank closed at its both longitudinal extremities 8a, 8b. It may be provided with a removable cap at one 8b of said longitudinal extremity, said removable cap giving the opportunity to access to an internal volume of said receiver 7 into which said first fluid flows, when removed.
  • said heat exchanger further comprises connecting means 9 to have said first fluid flowing between said first core 1 and said receiver 7.
  • Said connecting means 9 are here also configured to have said first fluid flowing between said receiver 7 and said second core 5.
  • Said connecting means 9 are further configured to support said receiver 7 in a shifted position relatively to said first core 1 along said stacking direction and in parallel with a lateral side of said first core 1, here said lateral side 1 a.
  • the invention thus increase the possibility of integration of said heat exchanger in its environment. It further gives the possibility to simultaneously attach the receiver to said first and/or second cores 1, 5 and to achieve a fluid circulation there between.
  • the first fluid enters the first core 1 trough an inlet flange 10 provided on a top end plate of said first core 1 to flow between the plates 3 of said first core 1. It then flows in said receiver 7 and from said receiver 7 to said second core 5 through respective channels 14a, 14b provided in said connecting means 9. It finally flows between the plates 3 of said second core 5 to exit through an outlet flange 11 provided at a bottom end plate of said second core 5.
  • Said connecting means are also advantageously configured to achieve a second fluid circulation between said first and said second core 1, 5.
  • said second fluid can enter the second core 5 through an inlet flange 12 and the first core 1 through a second fluid inlet pathway 15 provided in said connecting means 9, said second fluid inlet pathway communicating with said first and said second cores 1, 5 . It then flow simultaneously between the plates 3 of both cores 1, 5. It finally exit said second cores 5 through an outlet flange 13 and said first core 1 through a second fluid outlet pathway 16 provided in said connecting means 9, said second fluid outlet pathway communicating with said first and second cores 1, 5.
  • first core 1 and said second core 5 may have independent circuits for said second fluid, said cores having then their own inlet and outlet flanges for said second fluid.
  • the connecting means 9 may be configured to support said receiver 7 along any direction, especially said stacking direction as illustrated.
  • Said connecting means 7 are here configured to support said receiver 7 along said first core 1 and said second core 5.
  • Said receiver 7 may be higher than said first and second core 1, 5 taken together with said connecting means 9 along said stacking direction.
  • one 8a of said receiver longitudinal extremities extend above said first core 1 and/or the other 8b of its longitudinal extremities extend below said second core 5.
  • said connecting means 9 are at least in part located between said first and said second cores 1, 5, especially between a bottom end plate 3a of said first core 1 and a top end plate 3b of said second core 5.
  • Said end plates 3a, 3b are here the first plate of the stacked plates of each core 1, 5 ( figure 4 ).
  • Said connecting means 9 are here provided with connecting brackets 20, 22 for said receiver and/or at least one connecting bracket 24 to a support.
  • Said connecting means 9 comprise advantageously a frame 18 extending along said end plate of said first core 1 and/or said second core 5 and additional components to connect and support said receiver 7 along said lateral side 1 a, said longitudinal extremity 8b of said receiver 7 being shifted from said frame 18 along said stacking direction.
  • Said frame 18 is here sandwiched between said first and second cores 1, 5.
  • Said frame have for instance a rectangular hollow shape with an intermediate branch 19 connecting two longitudinal sides thereof.
  • Said connecting bracket 24 to a support extends from said frame 18.
  • Said channels 14a, 14b comprise a first portion 26 defined in said frame 18 and a second portion 28 in fluid communication with said first portion 26.
  • Said connecting means 9 comprise pipes 30 defining said second portion 28.
  • said pipes 30 extend along said receiver 7.
  • Said pipes 30 support here a first one 20 of said connecting brackets for said receiver 7, called base bracket, said base bracket 20 being connected to a longitudinal end of said receiver 7, here said longitudinal extremity 8b closed by a removable cap.
  • Said base bracket 20 comprises for instance three branches 32, 34, 36 configured here in a star.
  • a first 32 of said branches is attached to a first of said pipes 30 communicating with said first core 1 and is provided with an inlet flange 33 communicating with said receiver 7.
  • a second 34 of said branches is attached to a second of said pipes 30 communicating with said second core 5 and is provided with an outlet flange 35 communicating with said receiver 7. The first fluid circulation from said first core 1 to said second core 5 through said receiver 7 is thus established.
  • a third 36 of said branches is provided with a trough hole 37 trough which a screw 50 attaches said receiver 7 to said base bracket 20 thanks to a threaded hole (not shown) provided in said receiver 7.
  • a second one 22 of said connecting bracket for said receiver 7 extends laterally from said frame 18.
  • Said heat exchanger may also comprise a third connecting bracket 40 for said receiver 7 ( figure 2 ).
  • Said third connecting bracket 40 extends here from said top end plate of said first core 1.
  • Said connecting means 9 are advantageously configured to have said receiver 7 removably connected thereto.
  • Said connecting bracket 20, 22, 40 for said receiver 7 are thus only in contact with said receiver 7 to position it relative to said first and/or second cores 1, 5.
  • the receiver 7 is here attached to said connecting means 9 through said screw 50.
  • Said heat exchanger may further comprise other connecting brackets to a support, especially extending from said top end plate of said first core 1 and/or said bottom end plate of said second core 2.
  • Said connecting means 9 are for instance made of aluminium and/or aluminium alloy.
  • the frame 18, pipes 30 and connecting brackets 20, 22 for said receiver 7 can be preassembled, for instance by flame brazing or welding. In another embodiment, they are brazed one shot with said first and/or second cores 1, 5. Said receiver 7 is attached to said base bracket 20 afterwards.
  • Said frame may be obtained either by casting or by extrusion process followed by machining operations.
  • Said channels 14a, 14b can thus be defined trough the casting or afterwards thanks to machining operations.

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

Claims (14)

  1. Échangeur de chaleur entre un premier fluide et un deuxième fluide, ledit échangeur de chaleur comprenant un premier coeur (1) définissant des passages d'écoulement pour ledit premier fluide et ledit deuxième fluide, empilés en alternance le long d'une direction d'empilement, de manière à ce que les deux fluides échangent de la chaleur entre eux, ledit échangeur de chaleur comprenant en outre des moyens de connexion (9) de manière à ce que ledit premier fluide s'écoule entre ledit premier coeur (1) et un récepteur (7) pour ledit premier fluide, lesdits moyens de connexion (9) étant configurés pour supporter ledit récepteur (7) dans une position décalée par rapport audit premier coeur (1) le long de ladite direction d'empilement et parallèlement à un côté (la) dudit premier coeur (1), ledit côté (la) étant parallèle à ladite direction d'empilement, l'échangeur de chaleur comprenant en outre un deuxième coeur (5) empilé avec ledit premier coeur (1) le long de ladite direction d'empilement, lesdits moyens de connexion (9) étant au moins en partie situés entre lesdits premier et deuxième coeurs, l'échangeur de chaleur étant caractérisé en ce que lesdits moyens de connexion (9) sont configurés pour supporter ledit récepteur (7) le long dudit premier coeur (1) et dudit deuxième coeur (5).
  2. Échangeur de chaleur selon la revendication 1, dans lequel lesdits moyens de connexion (9) sont configurés pour supporter ledit récepteur (7) le long de ladite direction d'empilement.
  3. Échangeur de chaleur selon la revendication 1, dans lequel lesdits moyens de connexion (9) sont configurés de manière à ce que ledit premier fluide s'écoule entre ledit récepteur (7) et ledit deuxième coeur (5).
  4. Échangeur de chaleur selon l'une quelconque des revendications précédentes, dans lequel lesdits moyens de connexion (9) sont pourvus d'au moins un canal (14a, 14b) de manière à ce que ledit premier fluide s'écoule depuis ledit premier coeur (1) jusqu'audit récepteur (7) et/ou depuis ledit récepteur (7) jusqu'audit deuxième coeur (5).
  5. Échangeur de chaleur selon l'une quelconque des revendications précédentes, dans lequel lesdits moyens de connexion (9) sont pourvus d'au moins une console de connexion (20, 22) pour ledit récepteur (7) et/ou d'au moins une console de connexion (24) à un support.
  6. Échangeur de chaleur selon la revendication 5, dans lequel lesdits moyens de connexion (9) comprennent un cadre (18) s'étendant le long d'une plaque d'extrémité dudit premier coeur (1) et des moyens pour décaler une connexion de récepteur (7) depuis ledit cadre (18) le long de ladite direction d'empilement.
  7. Échangeur de chaleur selon la revendication 6, dans lequel ledit cadre (18) est pris en sandwich entre lesdits premier et deuxième coeurs (1, 5).
  8. Échangeur de chaleur selon l'une quelconque des revendications 6 ou 7, dans lequel lesdits canaux (14a, 14b) comprennent une première portion (26) définie dans ledit cadre (18) et une deuxième portion (28) en communication fluidique avec ladite première portion (26), ladite deuxième portion (28) étant définie par un tuyau (30) desdits moyens de connexion (9).
  9. Échangeur de chaleur selon la revendication 8, dans lequel lesdits tuyaux (30) s'étendent le long dudit récepteur (7).
  10. Échangeur de chaleur selon la revendication 9, dans lequel lesdits tuyaux (30) supportent une première (20) desdites consoles de connexion pour ledit récepteur, appelée console de base, ladite console de base (20) étant connectée à une extrémité longitudinale (8b) dudit récepteur (7).
  11. Échangeur de chaleur selon la revendication 10, dans lequel une deuxième (22) desdites consoles de connexion s'étend latéralement depuis ledit cadre (18).
  12. Échangeur de chaleur selon l'une quelconque des revendications précédentes, dans lequel lesdits moyens de connexion (9) sont brasés en une seule fois avec lesdits premier et/ou deuxième coeurs (1, 5).
  13. Échangeur de chaleur selon l'une quelconque des revendications 6 à 12, dans lequel ledit cadre (18) est brasé en une seule fois avec lesdits premier et/ou deuxième coeurs (1, 5).
  14. Échangeur de chaleur selon l'une quelconque des revendications précédentes, dans lequel lesdits moyens de connexion (9) sont configurés de manière à ce que ledit récepteur (7) soit connecté à ceux-ci de manière amovible.
EP13461512.9A 2013-03-27 2013-03-27 Échangeur de chaleur, en particulier condenseur Active EP2784425B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP13461512.9A EP2784425B1 (fr) 2013-03-27 2013-03-27 Échangeur de chaleur, en particulier condenseur
PL13461512.9T PL2784425T3 (pl) 2013-03-27 2013-03-27 Wymiennik ciepła, zwłaszcza skraplacz
PCT/EP2014/055512 WO2014154546A1 (fr) 2013-03-27 2014-03-19 Échangeur de chaleur, en particulier condenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13461512.9A EP2784425B1 (fr) 2013-03-27 2013-03-27 Échangeur de chaleur, en particulier condenseur

Publications (2)

Publication Number Publication Date
EP2784425A1 EP2784425A1 (fr) 2014-10-01
EP2784425B1 true EP2784425B1 (fr) 2016-05-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13461512.9A Active EP2784425B1 (fr) 2013-03-27 2013-03-27 Échangeur de chaleur, en particulier condenseur

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EP (1) EP2784425B1 (fr)
PL (1) PL2784425T3 (fr)
WO (1) WO2014154546A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3517874B1 (fr) * 2018-01-29 2023-09-13 Valeo Autosystemy SP. Z.O.O. Module d'échange de chaleur comportant un boîtier comprenant un cadre interne et un cadre externe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2923899B1 (fr) * 2007-11-20 2017-05-05 Valeo Systemes Thermiques Branche Thermique Moteur Condenseur pour circuit de climatisation avec bouteille integree
DE102010026507A1 (de) * 2010-07-07 2012-01-12 Behr Gmbh & Co. Kg Kältemittelkondensatormodul
DE102011007701A1 (de) * 2011-04-19 2012-10-25 Behr Gmbh & Co. Kg Kältemittelkondensatorbaugruppe
DE102011078136A1 (de) * 2011-06-27 2012-12-27 Behr Gmbh & Co. Kg Kältemittelkondensatormodul

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Publication number Publication date
EP2784425A1 (fr) 2014-10-01
WO2014154546A1 (fr) 2014-10-02
PL2784425T3 (pl) 2016-11-30

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