EP1930683A1 - Rohrverbindungsstruktur für einen Wärmetauscher - Google Patents

Rohrverbindungsstruktur für einen Wärmetauscher Download PDF

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Publication number
EP1930683A1
EP1930683A1 EP06256220A EP06256220A EP1930683A1 EP 1930683 A1 EP1930683 A1 EP 1930683A1 EP 06256220 A EP06256220 A EP 06256220A EP 06256220 A EP06256220 A EP 06256220A EP 1930683 A1 EP1930683 A1 EP 1930683A1
Authority
EP
European Patent Office
Prior art keywords
header
header tubes
connecting structure
tubes
pipe
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
EP06256220A
Other languages
English (en)
French (fr)
Other versions
EP1930683B1 (de
Inventor
Philippe Biver
Joël Bouvier
Hervé Damotte
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP06256220A priority Critical patent/EP1930683B1/de
Priority to AT06256220T priority patent/ATE425429T1/de
Priority to DE602006005691T priority patent/DE602006005691D1/de
Priority to US11/986,137 priority patent/US20080135222A1/en
Publication of EP1930683A1 publication Critical patent/EP1930683A1/de
Application granted granted Critical
Publication of EP1930683B1 publication Critical patent/EP1930683B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines

Definitions

  • Heat exchangers are used in vehicles to cool engine coolant, to cool charge air and to heat and/or cool refrigerant in a vehicle air conditioning system.
  • Such heat exchangers typically comprise upper and lower header tanks or manifolds having a plurality of fluid passages extending therebetween, air gaps, typically provided with strengthening ribs, are provided between the refrigerant passages to allow heat transfer between a flow of air passing through the air gaps and a flow of a fluid passing through the fluid passages.
  • Connection means are typically provided at ends of one or both of the header tanks for connecting to delivery and discharge conduits supplying fluid to be cooled/heated to and from the heat exchanger.
  • connection means are formed by brazing a pipe connection onto a connection block joined to an end region of a header tank.
  • Such pipe connections are difficult to form in situe in the vehicle, particularly in the case of a heat exchanger (typically an evaporator) provided within a HVAC module of a vehicle air conditioning system, leading to packaging constraints due to the need for extended header tank end regions and fixed pipe routing.
  • Such pipe connections can also lead to leakage problems, particularly where carbon dioxide is used as a refrigerant. When carbon dioxide is used as refrigerant, very high pressures in the range of up to more than 80 bar exist within the refrigerant circuit of the air conditioning system. The pressure loading on individual components of an air conditioning system therefore rises significantly.
  • a pipe connecting structure for a heat exchanger comprising:-
  • At least one tubular member extends substantially perpendicular to said plurality of header tubes.
  • said first end of said at least one elongate tubular member is adapted to extend through a corresponding hole in a second side wall of said outer one of said header tubes diametrically opposite said first side wall and through an aperture in a side wall of the one of said plurality of header tubes furthest from said outer one of said header tubes, whereby said first end communicates with an interior of said furthest one of said header tubes, whereby the at least one tubular member of the joining means extends between, and perpendicular to, said plurality of elongate header tubes to connect the plurality of elongate pipes to one another and to the connector block.
  • said at least one tubular member of the joining means includes a radially extending flange located between said first and second ends and adapted to be positioned between sides faces of said furthest one of said header tubes and an adjacent header tube.
  • said header portion comprises two parallel elongate header tubes, a first tube corresponding to said outer one of said header tubes and a second tube corresponding to said furthest one of said header tubes, said radially extending flange being positioned between said first and second tubes.
  • the joining means comprises a plurality of parallel tubular members arranged in a plane containing the longitudinal axis of each of the plurality of header tubes of the header portion.
  • connection means of the connector block may be adapted to receive said pipe with said pipe arranged parallel to said plurality of header tubes.
  • connection means of the connector block may be adapted to receive said pipe with the pipe arranged perpendicular to said plurality of header tubes.
  • connection means of the connector block comprises a flange or stub to be received within an end of the pipe.
  • connection means comprises an aperture for receiving an end of the pipe.
  • Fig. 1 illustrates a typical cross flow heat exchanger 1 having a first and second spaced manifolds or header tanks 2,3 with a plurality of coolant or refrigerant tubes 4 extending therebetween, said refrigerant tubes 4 being separated by fins to enhance refrigerant to air heat transfer. Refrigerant flows between the manifolds 2,3 via the tubes 4.
  • Each manifold 2,3 is formed from two parallel header tubes 10,11, each header tube 10,11 of the first manifold 2 communicating with a respective header tube 12,13 of the second manifold 3 via a respective number of said refrigerant tubes 4.
  • One of the two header tubes 10 of the first manifold 2 comprises a refrigerant delivery conduit and the other header tube 11 of the first manifold 2 comprises a discharge conduit.
  • the second manifold 3 is provided with bridging passageways between its two constituent header tubes 12,13 to provide cross flow.
  • a refrigerant delivery line 14 is connected to the first header tube 10 of the first manifold 2 and a refrigerant discharge line 15 is connected to the second header tube 11 of the first manifold 2.
  • Such connections are made by a connector block 16 joined to the ends the header tubes 10,11 beyond the block of refrigerant tubes 4, apertures being formed in such connection block into which are fixed, typically by brazing, the ends of the delivery and discharge lines 14,15.
  • the connector block 16 also has to serve as a support and spacer for the ends of the header tubes 10,11, the header tubes 10,11 requiring further support, spacing and joining means adjacent the ends of the header tubes remote from the connector block 16, this requiring further brazing and/or assembly steps.
  • an improved pipe connecting structure comprises a connector block 110 having a side face 112 configured to abut against a side region 124 of a first header tube 100 and having an elongated aperture or row of holes formed in said face 112 for receiving the ends of joining members 130a,130b,130c as will be described below.
  • Each joining member 130a,130b,130c comprises a tubular body having a first portion 131a,131b,131c, adapted to be inserted into a corresponding hole 103a,103b,103c formed in a side wall of a second header tube 102, and a second portion 132a,132b,132c, adapted to be inserted through diametrically opposed holes 101a,101b,101c, formed in opposite side walls of the first header tube 100, whereby said second portion 132a,132b,132c of the joining member 130a,130b,130c extends through said first header tube 100 and into the connector block 110, thus providing fluid communication between the second header tube 102 and the connector block 110.
  • a radially extending flange 134a,134b,134c is formed on each joining member 130a,130b,130c between said first and second portions thereof to be positioned, in use, between the first and second header tubes.
  • An outer face 114 of the connector block 110 is provided with an aperture 116 for receiving a flattened end 142 of a delivery or discharge conduit 140.
  • the connector block 110 can be secured to the header tubes by inserting a tool through the aperture 116 into at least one of the joining members whereby regions of the joining member on either side of the respective apertures in the header tubes and be expanded or clinched to lock the components together.
  • the joining members 130a,130b,130c, connector block 110 and the conduit 140 can then be sealed in their respective receiving apertures by brazing or by suitable adhesive.
  • a compact connecting structure serves to provide fluid connection between a delivery or discharge conduit and a header pipe of the manifold while at the same time supporting and correctly spacing the ends of the header tubes.
  • the connector block 210 has a side face 212 configured to abut against a side region 224 of a first header tube 200 and having an elongated aperture or row of holes 211a,211b,211c formed in said face 212 for receiving the ends of joining members 230a,230b,230c.
  • each joining member 230a,230b, 230c comprises a tubular body having a first portion 231 a,231 b,231 c, adapted to be inserted into a corresponding hole 203a,203b,203c formed in a side wall of a second header tube 202, and a second portion 232a,232b,232c, adapted to be inserted through diametrically opposed holes 201 a,201 b,201 c, formed in opposite side walls of the first header tube 200, whereby said second portion 232a,232b,232c of the joining member 230a,230b,230c extends through said first header tube 200 and into the connector block 210, thus providing fluid communication between the second header tube 202 and the connector block 210.
  • a radially extending flange 234a,234b,234c is formed on each joining member 230a,230b,230c between said first and second portions thereof to be positioned, in use, between the first and second header tubes.
  • the connector block 210 comprises a substantially tubular body having an aperture 216 in one end face for receiving end 242 of a delivery or discharge conduit 240 such that said end of the conduit 240 is arranged parallel to the header tubes 200,202.
  • An axial slot 244 is provided in the end of the conduit 240 for receiving the ends of the second portions 232a,232b,232c of the joining member 230a,230b,230c.
  • the conduit 240 is formed with a bend spaced from said end 242. Such arrangement provides a degree of flexibility in the angle of the conduit extending from the manifold to provide more flexibility in installation of the heat exchanger by selecting the circumferential position of the slot 244 in the end of the conduit 240.
  • An aperture 205 is provided in an outer side of the connector block through which a tool can be inserted to deform or clinch the central joining member 230b to lock the connector block 210 to the header tubes 200,202, the connecting structure being subsequently sealed by means of brazing or adhesive.
  • the ends of the header tubes 200,202 are sealed by means of a plug 250.
  • the connector 310 is again joined to the header tubes 300,302 by means of joining members 330a,330b, 330c, each comprises a tubular body having a first portion 331a,331b,331c, adapted to be inserted into a corresponding hole 303a,303b,303c formed in a side wall of a second header tube 302, and a second portion 332a,332b,332c, adapted to be inserted through diametrically opposed holes 301a,301b,301c, formed in opposite side walls of the first header tube 300, whereby said second portion 332a,332b,332c of the joining member 330a,330b,330c extends through said first header tube 300 and into the connector block 310, thus providing fluid communication between the second header tube 302 and the connector block 310.
  • a radially extending flange 334a,334b,334c is formed on each joining member 330a,330b,330c between said first and second portions thereof to be positioned, in use, between the first and second header tubes 300,302.
  • the connector block 310 is adapted to slidingly receive an end 342 of a delivery or discharge conduit 340 over a portion of the connector block 310.
  • An axial slot 344 is provided in the end 342 of the conduit 340 to enable the conduit 340 to be slid over a substantially tubular portion 346 of the connector block 310, the tubular portion 315 having an opening 316 end to enable fluid communication between the conduit 340 and the joining members 330a,330b,330c and hence the second header tube 302.
  • An aperture 305 is provided in an outer side of the connector block through which a tool can be inserted to deform or clinch the central joining member 330b to lock the connector block 310 to the header tubes 300,302, the connecting structure being subsequently sealed by means of brazing or adhesive.
  • a plug 350 is inserted into the ends of the header tubes 300,302 to close the tubes.
  • FIG. 10 A fourth embodiment of the present invention is illustrated in Figs 10 to 13 .
  • the connector block 410 is adapted to provide fluid communication with the header tube 400 to which it is abutted.
  • the connector block 410 has a side face 412 configured to abut against a side region 424 of a first header tube 400 and having an elongated row of holes formed in said face 412 for receiving the ends of joining members 430a,430b,430c as will be described below.
  • Each joining member 430a,430b,430c comprises a tubular body having a first portion 431 a,431 b,431 c, adapted to be inserted into a corresponding hole 401 a,401 b,401 c formed in the side region 424 of the first header tube 400, and a second portion 432a,432b,432c, adapted to be inserted into the corresponding hole in the connector block 410, thus providing fluid communication between the second header tube 102 and the connector block 110.
  • the first portion 431a,431b,431c of each joining member has a smaller diameter than the second portion 432a,432b,432c to limit the insertion of each joining member into its corresponding aperture in the header tube 400.
  • An outer face 414 of the connector block 110 is provided with an aperture 416 for receiving a flattened end 442 of a delivery or discharge conduit 440.
  • the connector block 410 can be secured to the header tubes by inserting a tool through the aperture 416 into at least the central one 430b of the joining members to deform or clinch the end regions of the joining member to lock the components together.
  • the joining members 430a,430b,430c, connector block 410 and the conduit 440 can then be sealed in their respective receiving apertures by brazing or by suitable adhesive.
  • the plug 450 serves to close the ends of the header tubes while at the same time holding the two header tubes together at the correct spacing.
  • a compact face connecting structure that can provide a pipe connection with the header tube either the closest or furthest from the connection block by the use of the appropriate joining members.
  • joining members 330a,330b,330c extend though the first header tube 300 into the second header tube 302, they may be provided with radial apertures in their second portions 332a,332b,332c if fluid communication between the connector block 310 and the first header tube 300 as well as the second header tube 302 is desired.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP06256220A 2006-12-06 2006-12-06 Rohrverbindungsstruktur für einen Wärmetauscher Not-in-force EP1930683B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06256220A EP1930683B1 (de) 2006-12-06 2006-12-06 Rohrverbindungsstruktur für einen Wärmetauscher
AT06256220T ATE425429T1 (de) 2006-12-06 2006-12-06 Rohrverbindungsstruktur für einen wärmetauscher
DE602006005691T DE602006005691D1 (de) 2006-12-06 2006-12-06 Rohrverbindungsstruktur für einen Wärmetauscher
US11/986,137 US20080135222A1 (en) 2006-12-06 2007-11-20 Pipe connecting structure for a heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06256220A EP1930683B1 (de) 2006-12-06 2006-12-06 Rohrverbindungsstruktur für einen Wärmetauscher

Publications (2)

Publication Number Publication Date
EP1930683A1 true EP1930683A1 (de) 2008-06-11
EP1930683B1 EP1930683B1 (de) 2009-03-11

Family

ID=37946508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06256220A Not-in-force EP1930683B1 (de) 2006-12-06 2006-12-06 Rohrverbindungsstruktur für einen Wärmetauscher

Country Status (4)

Country Link
US (1) US20080135222A1 (de)
EP (1) EP1930683B1 (de)
AT (1) ATE425429T1 (de)
DE (1) DE602006005691D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013123355A1 (en) * 2012-02-16 2013-08-22 Delphi Technologies, Inc. Face plumbing adapter for a heat exchanger assembly
US10208879B2 (en) * 2016-05-31 2019-02-19 A. Raymond Et Cie Fluid connector assembly
WO2020123653A1 (en) * 2018-12-14 2020-06-18 Modine Manufacturing Company Refrigerant condenser
EP3757498A1 (de) * 2019-06-26 2020-12-30 Valeo Autosystemy SP. Z.O.O. Wärmetauscher
JP2023139886A (ja) * 2022-03-22 2023-10-04 サンデン株式会社 熱交換器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10133940A1 (de) * 2001-07-12 2003-01-23 Behr Gmbh & Co Verbindungsvorrichtung für Leitungen, insbesondere für einen Wärmetauscher in einem Fahrzeug
US20050275219A1 (en) * 2003-05-21 2005-12-15 Jinichi Hiyama Pipe connecting structure for a heat exchanger
EP1710529A1 (de) * 2005-03-31 2006-10-11 Frape Behr S.A. Wärmeübertrager, insbesondere Kondensator für Klimaanlage

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US1653468A (en) * 1926-08-24 1927-12-20 Edward T Payne Oil burner
US2578397A (en) * 1948-02-10 1951-12-11 Arnolt Corp Furniture construction
JP2747379B2 (ja) * 1991-05-31 1998-05-06 昭和アルミニウム株式会社 熱交換器
US5246348A (en) * 1992-05-14 1993-09-21 Vooner Vacuum Pumps, Inc. Liquid ring vacuum pump-compressor with double function of liquid ring with separate sources
JP3159805B2 (ja) * 1992-10-12 2001-04-23 昭和アルミニウム株式会社 熱交換器
US5348081A (en) * 1993-10-12 1994-09-20 General Motors Corporation High capacity automotive condenser
DE69720347T3 (de) * 1996-08-12 2008-07-24 Calsonic Kansei Corp. Kombinierter Wärmetauscher
DE69824454T2 (de) * 1998-12-02 2005-06-23 Zexel Valeo Climate Control Corp. Wärmetauscher
US6550815B2 (en) * 2001-08-14 2003-04-22 Itt Manufacturing Enterprises, Inc. Coaxial quick connector
JP2007132623A (ja) * 2005-11-11 2007-05-31 Calsonic Kansei Corp 熱交換器のリキッドタンク構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10133940A1 (de) * 2001-07-12 2003-01-23 Behr Gmbh & Co Verbindungsvorrichtung für Leitungen, insbesondere für einen Wärmetauscher in einem Fahrzeug
US20050275219A1 (en) * 2003-05-21 2005-12-15 Jinichi Hiyama Pipe connecting structure for a heat exchanger
EP1710529A1 (de) * 2005-03-31 2006-10-11 Frape Behr S.A. Wärmeübertrager, insbesondere Kondensator für Klimaanlage

Also Published As

Publication number Publication date
ATE425429T1 (de) 2009-03-15
EP1930683B1 (de) 2009-03-11
US20080135222A1 (en) 2008-06-12
DE602006005691D1 (de) 2009-04-23

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