EP1754946A2 - Montage d'une chambre de distribution pour supporter les joues latérales et maintenir un pressage constant des ailettes extérieures - Google Patents

Montage d'une chambre de distribution pour supporter les joues latérales et maintenir un pressage constant des ailettes extérieures Download PDF

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Publication number
EP1754946A2
EP1754946A2 EP06017134A EP06017134A EP1754946A2 EP 1754946 A2 EP1754946 A2 EP 1754946A2 EP 06017134 A EP06017134 A EP 06017134A EP 06017134 A EP06017134 A EP 06017134A EP 1754946 A2 EP1754946 A2 EP 1754946A2
Authority
EP
European Patent Office
Prior art keywords
manifold
header
tubes
collection tube
heat exchanger
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
EP06017134A
Other languages
German (de)
English (en)
Other versions
EP1754946B1 (fr
EP1754946A3 (fr
Inventor
Alex Latcau
Gary Safsten
Bob Zito
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr America 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 Behr America Inc filed Critical Behr America Inc
Publication of EP1754946A2 publication Critical patent/EP1754946A2/fr
Publication of EP1754946A3 publication Critical patent/EP1754946A3/fr
Application granted granted Critical
Publication of EP1754946B1 publication Critical patent/EP1754946B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0243—Header boxes having a circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the present invention relates to a heat exchanger, and more particularly to a heat exchanger for an automotive air conditioning system.
  • a kernel shift is another error that can occur.
  • the outer core cover shifts during installation of the solder frames, causing an undesirable cosmetic defect, although the performance of the capacitor is not affected. This typically occurs when the cover is hung on the crimping frame which holds the capacitor during the soldering process. Products with this error can not be reworked and can only be sorted out.
  • a kernel shift shift occurs when the Cover slides along the slat along. It should be noted that the cover is not centered to the manifold and the blade below releases.
  • Dropping lamellae and setting up louvers are typical failure modes for certain types of capacitors. Incomplete compression can occur during the operation of the core structure, as previously mentioned, due to natural deviations of the lamellar and tube height. Where the core construction process can be controlled to minimum values, incomplete grouting may still result as a natural thermal expansion effect in the furnace.
  • the core can be protected by placing a bar or rail under and along the blades that are typically affected.
  • This rail serves as a preventive barrier that prevents slats from falling out, even if otherwise a loss of compression would cause the slat to fall out.
  • this rail is ineffective against setting up the slats.
  • a protective "cage” may be placed on top of the capacitor prior to soldering.
  • This cage which is essentially a Stainless steel wire mesh is fabricated to attach to the compression frame above the condenser without touching the condenser, protects the core from the furnace curtains, but allows sufficient airflow to allow good soldering, and is also light enough, so that it does not become a heat sink.
  • this system will not prevent the blade from being set up by the flux fan.
  • the cage has a fundamental disadvantage in that it adds an expense to the method in the form of a non-value enhancing manner. It is also subject to damage which makes it difficult to place it and creates a risk of destroying the furnace.
  • FIG DE 198 14 827 A1 A device for holding the end elements in place is shown in FIG DE 198 14 827 A1 described.
  • This device comprises a side plate which is fixed to the manifold by means of elements.
  • this configuration does not allow condensate or other fluid to flow between the side plates and the manifold. Therefore, the condensate that forms on the side plate may accumulate and lead to corrosion of the heat exchanger.
  • a header for a heat exchanger has a header, the header having a plurality of openings for tubes, and each end of the header having a plurality of projections for holding an end member.
  • a heat exchanger has a first header, a second header substantially aligned parallel to the first header, a plurality of tubes extending between the first and second header, and at least one end member is disposed adjacent to the plurality of tubes and extends between an end of the first header and an end of the second header, each end of the header having a plurality of protrusions for holding the end member.
  • a motor vehicle heating and air conditioning system includes hot fluid and cold fluid providing devices and a heat exchanger having a first header, a second header substantially parallel to the first header, a plurality of tubes extending between the first and second header tubes and having an end member disposed adjacent to the plurality of tubes and extending between an end of the first header tube and an end of the second header tube, each end of the header tube a plurality of protrusions for holding the end member.
  • a motor vehicle comprises a motor vehicle heating and air conditioning system having a heat exchanger having a first header, a second header substantially aligned parallel to the first header, a plurality of tubes extending between extending the first and second header tubes, and having at least one end member disposed adjacent to the plurality of tubes and extending between one end of the first header tube and one end of the second header tube, each end of the header tube having a plurality of projections for holding the header tube End element has.
  • the outer core covers are held in such a way that displacement is impossible and that compression losses are minimized.
  • Figure 1 shows a typical arrangement of a frame 300 and capacitor 200 prior to soldering.
  • the condenser 200 includes a manifold 230 at each end and a tube-fin matrix 240 between each manifold 230.
  • the tube-fin matrix 240 includes heat exchanger tubes 250 and regions 260 between the tubes 250 for fins (not shown).
  • the crimping points 210 are shown only for the purpose of effect. Typically there is compression along the length of the covers, but compression can also terminate about 50mm from the headers.
  • FIG. 2 shows a more detailed view of a corner joint 220 of the frame 300 and capacitor 200 of Figure 1.
  • the frame members heat up and undergo thermal expansion.
  • the direction of the thermal expansion is indicated by the arrow X in FIG.
  • the thermal expansion is a function of the material, the temperature change and the length of the expanding material. Long components are most affected by thermal expansion.
  • the core cover is farthest from the center of the manifold.
  • the capacitor collecting pipe 230 is made of aluminum
  • the frame 300 is made of stainless steel
  • the thermal expansion of the aluminum capacitor collecting pipes is 230 larger than that of the stainless steel frame 300.
  • the outer core cover 270 is bent against the solder frame 300.
  • the first active tube 255 is detected by the manifold 230 and is slightly closer to the center of the manifold.
  • the outer core cover 270 is slid away from the end of the manifold 230 without support. Further, the resulting gap between the outermost active tube 255 and the core cover 270 is made larger than the height of the sipe (not shown), and the sipe loses its compression.
  • FIG. 3 is a side view of a reproduction of the outer pipe support according to a preferred embodiment of the present invention.
  • a condenser assembly 100 includes a header 10, heat exchanger tubes 120 that form sections 130 for fins (not shown), and an outer core cover or element 140.
  • the capacitor assembly 100 is compressed by a soldering frame 300.
  • the manifold 10 has protrusions 30 to hold the outer core cover or member 140 in place during manufacture, including brazing. Therefore, since the outer core cover or member 140 is held in place, the first active tube 125 is also held in place and the manufacturing disadvantages previously described are minimized.
  • Figure 4 shows a top view of a manifold 10 according to a preferred embodiment of the present invention.
  • the collecting tube 10 has openings 20 for heat exchange tubes, which are arranged along the longitudinal axis A of the collecting tube 10.
  • the manifold 10 also has "fingers" or protrusions 30 at each end 40 of the manifold to hold the members 140 at the ends of the manifold.
  • the elements 140 held by the projections may be end plates, unused Be pipes or other end elements, which are known from the heat exchanger theory.
  • the projections 30 may be integral with the body of the manifold 10.
  • Figure 5 shows a detailed view of the region B of Figure 4, showing the openings for the heat exchanger tubes according to an embodiment of the present invention.
  • the openings 20 for the heat exchanger tubes may be curved so that the openings 20 follow the curvature of the heat exchanger tubes 120. This configuration assists in connecting the manifold 10 and the heat exchange tubes 120 during soldering, and further assists in sealing the manifold 10 to the heat exchange tubes 120.
  • FIG. 6 shows a detailed view of a header end 40 according to one embodiment of the present invention.
  • the collection tube end 40 has “fingers” or protrusions 30 to hold elements to the collection tube.
  • the “fingers” or protrusions 30 form portions 35 for holding members 140. These portions 35 can be made smaller in size than the openings 20 for the heat exchanger tubes 120 so that the members 140 are held firmly in place during manufacture of the condenser become.
  • the header ends 40 may include a portion 50 that allows fluid, such as condensate, to flow between the members 140 and the header 10.
  • the region 50 is a planar region that provides a gap between the element 140 and the manifold 10.
  • the region 50 may also be a groove in the manifold 10 or other configuration that provides a gap between the member 140 and the manifold 10.
  • the region 50 By providing a region or gap between the element and the manifold, it becomes a fluid, such as condensate, for example. which collects on the manifold and the element allows to flow instead of collecting at the junction of the manifold and the element. This prevents or delays corrosion in the manifold.
  • the region 50 may also be formed by one or more planar or curved surfaces or a combination of planar or curved surfaces intended to provide the surface or surfaces provide sufficient gap to allow a fluid to flow between the manifold and the element.
  • Figures 7A, 7B, 7C and 7D show detailed views of exemplary "fingers" or protrusions 30 for holding a member at the end of a manifold 10 in accordance with further preferred embodiments of the present invention.
  • the "finger" or protrusion 30 creates a grip portion 39 for holding the member 140 in the manifold.
  • one or more surfaces 37 have been provided that define a gap between an element 140 (not shown here for clarity) and the manifold 10 (FIG. for reasons of clarity not shown here in its entirety) form.
  • the surface 37 has been illustrated herein as a planar surface, the surface may also be formed by one or more planar or curved surfaces or a combination of planar and curved surfaces provided so that the surface or surfaces provide sufficient clearance to allow fluid to flow between the manifold and the element. Also, one or more areas 37 may be provided in addition to or instead of the area 50 discussed above.
  • Figure 8 shows an end view of a manifold 10 according to another preferred embodiment of the present invention.
  • the manifold 10 has protrusions 30 for holding an element 140.
  • the protrusions 30 form a slot or slots into which the element 140 is fitted so that the element 140 is held in place during fabrication.
  • the manifold 10 also has openings for receiving heat exchanger tubes.
  • the first active tube 125 is shown in place in the manifold 10.
  • the manifold 10 is shown as a one-piece tube. However, the manifold 10 may also be formed of two or more pieces forming the manifold 10.
  • FIG. 3 shows a representation of this effective distance 160.
  • Advantages of the invention include its proven ability to eliminate the two major failure modes currently observed during capacitor fabrication: tube displacement and lamella falling out. It has also been demonstrated that lamellar windows and erection of lamellae due to the change decrease substantially. These improvements are realized by means of a minimal increase in tool and unit costs.
  • Another advantage is that this change can be easily integrated into existing tools without noticeably increasing the initial board.
  • Another advantage is that the present invention allows condensate to collect at the end of the header to drain between the header and the retained member. As a result, premature corrosion of the capacitor can be avoided.

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)
  • Air-Conditioning For Vehicles (AREA)
EP06017134.5A 2005-08-18 2006-08-17 Echangeur de chaleur Active EP1754946B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/206,289 US20070039723A1 (en) 2005-08-18 2005-08-18 Header extension to retain core cover and maintain constant compression on outer fins

Publications (3)

Publication Number Publication Date
EP1754946A2 true EP1754946A2 (fr) 2007-02-21
EP1754946A3 EP1754946A3 (fr) 2012-08-29
EP1754946B1 EP1754946B1 (fr) 2015-07-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06017134.5A Active EP1754946B1 (fr) 2005-08-18 2006-08-17 Echangeur de chaleur

Country Status (2)

Country Link
US (1) US20070039723A1 (fr)
EP (1) EP1754946B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11668532B2 (en) 2019-09-18 2023-06-06 Carrier Corporation Tube sheets for evaporator coil
US12042945B2 (en) 2019-08-23 2024-07-23 Carrier Corporation System and method for early event detection using generative and discriminative machine learning models

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5884484B2 (ja) * 2011-12-28 2016-03-15 ダイキン工業株式会社 熱交換器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5894885A (en) 1996-11-04 1999-04-20 Valeo Thermique Moteur Condenser having a simplified assembly for use in an air conditioning circuit for a vehicle
DE19814827A1 (de) 1998-04-02 1999-10-07 Behr Gmbh & Co Wärmeübertrager für ein Kraftfahrzeug

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US4829780A (en) * 1988-01-28 1989-05-16 Modine Manufacturing Company Evaporator with improved condensate collection
JP2537507Y2 (ja) * 1991-03-08 1997-06-04 サンデン株式会社 熱交換器
DE4142019A1 (de) * 1991-12-19 1993-06-24 Behr Gmbh & Co Wellrippe fuer flachrohrwaermetauscher
JP3063361B2 (ja) * 1992-03-04 2000-07-12 株式会社デンソー 冷凍サイクル用凝縮器
US5607012A (en) * 1995-06-12 1997-03-04 General Motors Corporation Heat exchanger
US5737965A (en) * 1995-10-11 1998-04-14 Maytag Corporation Dual drive transmission
US5992514A (en) * 1995-11-13 1999-11-30 Denso Corporation Heat exchanger having several exchanging portions
US5865244A (en) * 1997-03-25 1999-02-02 Behr America, Inc. Plastic header tank matrix and method of making same
US5898996A (en) * 1997-09-05 1999-05-04 General Motors Corporation Method of forming a cylindrical heat exchanger header tank
US6253837B1 (en) * 1998-03-23 2001-07-03 Long Manufacturing Ltd. By-pass values for heat exchanger
DE29909871U1 (de) * 1999-06-02 2000-10-12 Autokühler GmbH & Co. KG, 34369 Hofgeismar Wärmeaustauscher, insbesondere Ölkühler
DE10105202A1 (de) * 2001-01-31 2002-08-01 Behr Gmbh & Co Wärmeübertrager-Rohrblock mit mehreren geschlitzten Sammelrohren
JP2003004395A (ja) * 2001-06-22 2003-01-08 Zexel Valeo Climate Control Corp 熱交換器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5894885A (en) 1996-11-04 1999-04-20 Valeo Thermique Moteur Condenser having a simplified assembly for use in an air conditioning circuit for a vehicle
DE19814827A1 (de) 1998-04-02 1999-10-07 Behr Gmbh & Co Wärmeübertrager für ein Kraftfahrzeug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12042945B2 (en) 2019-08-23 2024-07-23 Carrier Corporation System and method for early event detection using generative and discriminative machine learning models
US11668532B2 (en) 2019-09-18 2023-06-06 Carrier Corporation Tube sheets for evaporator coil

Also Published As

Publication number Publication date
US20070039723A1 (en) 2007-02-22
EP1754946B1 (fr) 2015-07-22
EP1754946A3 (fr) 2012-08-29

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