EP0910778B1 - Evaporateur a tubes aplatis verticaux pour vehicules a moteur - Google Patents

Evaporateur a tubes aplatis verticaux pour vehicules a moteur Download PDF

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Publication number
EP0910778B1
EP0910778B1 EP98922800A EP98922800A EP0910778B1 EP 0910778 B1 EP0910778 B1 EP 0910778B1 EP 98922800 A EP98922800 A EP 98922800A EP 98922800 A EP98922800 A EP 98922800A EP 0910778 B1 EP0910778 B1 EP 0910778B1
Authority
EP
European Patent Office
Prior art keywords
flat
zigzag
flat tubes
heat exchange
tubes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98922800A
Other languages
German (de)
English (en)
Other versions
EP0910778A1 (fr
Inventor
Roland Haussmann
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 Klimatechnik GmbH and Co KG
Original Assignee
Valeo Klimatechnik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Klimatechnik GmbH and Co KG filed Critical Valeo Klimatechnik GmbH and Co KG
Publication of EP0910778A1 publication Critical patent/EP0910778A1/fr
Application granted granted Critical
Publication of EP0910778B1 publication Critical patent/EP0910778B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • 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
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits

Definitions

  • the invention relates to a flat tube evaporator, in particular made of aluminum or an aluminum alloy, for automotive air conditioning systems with the features of the generic term of the claim.
  • a flat tube evaporator is known for example from EP 0 709 640 A2.
  • This pre-release relates to a flat tube evaporator in plate construction.
  • flat tube evaporators with single manufactured flat tubes known, this in turn from folded sheets according to the construction of DE 197 28 247 A1 or integrally according to US 4,350,025 A. can.
  • the invention includes all of these designs.
  • the invention is therefore based on the object effective water drainage function from the zigzag slats with simple Manufacturing technology without additional material and depth.
  • the effective water drainage function should in particular be largely residue-free Drainage of condensation can be reached and one Carrying moisture in the direction of flow by inflowing external heat exchange fluids are counteracted.
  • the drainage channels are provided in the area of the slats, where the condensation occurs.
  • Such gutters are, however at the connection ends of the flat tubes, where soldering, for example done with a tube sheet, annoying.
  • the invention therefore goes in accordance with features of the generic EP-0 709 640 A2 also from the indentation that the water drainage channel can form in such a soldering area sight.
  • the there T-profile web can be cut to length, which is a complicated Post-processing, for example by sawing out or milling requires. You can easily achieve the same effect achieve that the indentation in the End areas of the flat tubes are not cut to length from the coil with trains.
  • FIG. 1 Flat tube heat exchanger is double flow and as Evaporator of a refrigerant circuit designed.
  • the flat tube evaporator has the following general Construction:
  • the evaporator serves as the internal heat exchange medium a refrigerant such as especially fluorocarbon, the in the heat exchanger via a feed line 14 enters and via an outlet line 16 from the heat exchanger emerges again.
  • the supply line comes in the refrigerant circuit from its liquefier.
  • the output line 16 leads to the compressor of the refrigerant circuit.
  • This collector 18 is then on an end face 4 the flat tubes 2 arranged while on the other end 4 of the flat tubes 2 only between each Floods are reversed, here according to FIG. 1 in a common deflector 22.
  • the multiple flow means at least one Flow reversal in the region of the chambers 12 individual channels in each flat tube 2.
  • the collector 18 is without limitation Generality from a tube sheet 26 and a cover 28 composed, where appropriate further parts to Structure of the collector 18 can be provided.
  • the collector 18 Since in the collector 18, the input function and the output function of the refrigerant are needed the collector 18 has at least two-chamber training, which separates an input side from the output side.
  • the chamber subdivision has at least a flat web in the form of a longitudinal web 32, which is the entrance area communicating with the feed line 14 in collector 18 from one along collector 18 continuous outlet chamber 34 which separates with the Output line 16 communicates.
  • the evaporator also needs one if possible uniform supply of the refrigerant on the inlet side to all flat tubes 2.
  • the supply to neighboring groups of Flat tubes 2 in which at least some groups have one have a higher number of flat tubes than one, including the number the flat tubes 2 can change per group.
  • Any group Flat tubes 2 have their own entry chamber assigned directly to the group in question the flat tubes 2 communicates. Your own entry chambers are in the chamber subdivision by as flat webs trained crossbars separated from each other.
  • the crossbars go on the double-flow evaporator at right angles only from one side of the longitudinal web 32 from.
  • the feed line 14 communicates with the individual own entrance chambers each via one in the collector 18 running own supply line 44, which is designed differently can be, e.g. summarized in a tube.
  • the block is out of the finished heat exchanger Flat tubes 2 and zigzag fins 8 laterally through each one adjacent to the outer zigzag lamella Side plate 36 completed so that the side plates 36th an outer frame for the flow to the heat exchanger block Form outside air.
  • the flat tubes 2, the zigzag fins 8, the Tube plate 26 and the cover 28 of the collector together with the if applicable, provided division of the chamber as well as the Side plates 36 of the heat exchanger are appropriate as well as the supply line 14 and the output line 16, made of aluminum and / or an aluminum alloy including the sections adjacent to the heat exchanger the line connections to the finished evaporator brazed.
  • the tube sheet 26 and the cover 28 are made with Lot of pre-coated sheet formed.
  • the free edge of the The lid engages with at least one-sided overlap into the tube sheet 26.
  • the respective vertical water drainage channel 50 is through a vertical indentation 60 on that of the adjacent zigzag lamella facing flat side of the adjacent flat tube 2 formed, the indentation expediently the wall surface of a channel 12 is made.
  • Fig. 2 shows that the water drainage channel as well also in a previous channel, here the penultimate Channel seen in the flow direction mentioned, formed can be.

Landscapes

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

Claims (1)

  1. Evaporateur à tubes plats, en particulier en aluminium ou en un alliage d'aluminium, pour installations de climatisation de véhicules automobiles, avec des tubes plats (2) qui s'étendent longitudinalement dans le sens vertical et des lamelles en zigzag (8) disposées entre les tubes plats (2) qui peuvent être balayées (flèche 9) par un fluide extérieur d'échange de chaleur, en particulier de l'air, le long des sommets (40) de leurs ailes (38) qui s'étendent en zigzag, les ailes individuelles des lamelles en zigzag se raccordant les unes aux autres par des sommets arrondis,
       dans lequel, en fonctionnement, le fluide extérieur d'échange de chaleur pénètre dans l'évaporateur à tubes plats dans une zone d'entrée des lamelles en zigzag (8) et quitte l'évaporateur à tubes plats dans une région d'extrémité des lamelles en zigzag (8),
       dans lequel, dans la région d'extrémité des lamelles en zigzag (8), une rigole (50) d'évacuation d'eau qui s'étend de manière continue du haut vers le bas est formée des deux côtés sur les tubes plats (2),
       et dans lequel la rigole (50) d'évacuation d'eau est formée sur la surface extérieure sous la forme d'un creux (60), par enfoncement du côté plat du tube plat (2), les extrémités de raccordement (62) des tubes plats (2) ne présentant pas le creux (60),
    caractérisé en ce que
       l'espace intermédiaire (46) situé entre les ailes (38) voisines des lamelles en zigzag (8) est plus étroit au voisinage de l'intervalle libre (44) de deux ailes adjacentes au même tube plat qu'au voisinage du sommet arrondi (40).
EP98922800A 1997-05-07 1998-05-05 Evaporateur a tubes aplatis verticaux pour vehicules a moteur Expired - Lifetime EP0910778B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19719263 1997-05-07
DE19719263A DE19719263C2 (de) 1997-05-07 1997-05-07 Flachrohrverdampfer mit vertikaler Längserstreckungsrichtung der Flachrohre bei Kraftfahrzeugen
PCT/EP1998/002638 WO1998050741A1 (fr) 1997-05-07 1998-05-05 Evaporateur a tubes aplatis verticaux pour vehicules a moteur

Publications (2)

Publication Number Publication Date
EP0910778A1 EP0910778A1 (fr) 1999-04-28
EP0910778B1 true EP0910778B1 (fr) 2003-07-16

Family

ID=7828871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98922800A Expired - Lifetime EP0910778B1 (fr) 1997-05-07 1998-05-05 Evaporateur a tubes aplatis verticaux pour vehicules a moteur

Country Status (6)

Country Link
US (1) US20010003310A1 (fr)
EP (1) EP0910778B1 (fr)
CN (1) CN1225713A (fr)
BR (1) BR9804884A (fr)
DE (1) DE19719263C2 (fr)
WO (1) WO1998050741A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906769B1 (ko) * 2002-01-31 2009-07-10 한라공조주식회사 오뚜기형 유로를 갖는 열교환기용 튜브 및 이를 이용한열교환기
FR2867845B1 (fr) * 2004-03-16 2007-04-20 Valeo Climatisation Tubes d'echangeur de chaleur favorisant le drainage des condensats
CN100432579C (zh) * 2004-07-05 2008-11-12 昭和电工株式会社 蒸发器
CN101487669B (zh) * 2008-01-17 2012-08-22 开利公司 包括多管式分配器的热交换器
CN102052807B (zh) * 2011-01-26 2012-11-28 西安交通大学 一种冷凝器
CN112455360B (zh) * 2020-11-30 2022-03-11 奇瑞汽车股份有限公司 膨胀胶块的排水部件和膨胀胶块

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350025A (en) * 1980-04-18 1982-09-21 Nissan Motor Company, Limited Refrigerant evaporator
DE19728247A1 (de) * 1996-07-03 1998-01-08 Zexel Corp Flache Röhre für einen Wärmetauscher

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621685A (en) * 1983-09-12 1986-11-11 Diesel Kiki Co., Ltd. Heat exchanger comprising condensed moisture drainage means
JPH0823477B2 (ja) * 1987-08-09 1996-03-06 日本電装株式会社 積層型熱交換器
US4829780A (en) * 1988-01-28 1989-05-16 Modine Manufacturing Company Evaporator with improved condensate collection
AU668403B2 (en) * 1992-08-31 1996-05-02 Mitsubishi Jukogyo Kabushiki Kaisha Stacked heat exchanger
US5622219A (en) * 1994-10-24 1997-04-22 Modine Manufacturing Company High efficiency, small volume evaporator for a refrigerant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350025A (en) * 1980-04-18 1982-09-21 Nissan Motor Company, Limited Refrigerant evaporator
DE19728247A1 (de) * 1996-07-03 1998-01-08 Zexel Corp Flache Röhre für einen Wärmetauscher

Also Published As

Publication number Publication date
EP0910778A1 (fr) 1999-04-28
WO1998050741A1 (fr) 1998-11-12
BR9804884A (pt) 1999-08-31
CN1225713A (zh) 1999-08-11
DE19719263A1 (de) 1998-11-12
US20010003310A1 (en) 2001-06-14
DE19719263C2 (de) 2002-04-25

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