EP2282155A2 - Seitenteil und Wärmetauscher mit Seitenteilen - Google Patents

Seitenteil und Wärmetauscher mit Seitenteilen Download PDF

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Publication number
EP2282155A2
EP2282155A2 EP10182795A EP10182795A EP2282155A2 EP 2282155 A2 EP2282155 A2 EP 2282155A2 EP 10182795 A EP10182795 A EP 10182795A EP 10182795 A EP10182795 A EP 10182795A EP 2282155 A2 EP2282155 A2 EP 2282155A2
Authority
EP
European Patent Office
Prior art keywords
cheek
expansion zone
play according
zone
expansion
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.)
Withdrawn
Application number
EP10182795A
Other languages
English (en)
French (fr)
Other versions
EP2282155A3 (de
Inventor
Christian Riondet
Jean-Marc Lesueur
Jean-Michel Haincourt
Vincent Leteillier
Alan Day
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34949812&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2282155(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP2282155A2 publication Critical patent/EP2282155A2/de
Publication of EP2282155A3 publication Critical patent/EP2282155A3/de
Withdrawn legal-status Critical Current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
    • 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
    • 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 invention relates to a cheek for heat exchanger, including a heat exchanger for the equipment of a motor vehicle, and a heat exchanger equipped with such a cheek.
  • Conventional heat exchangers comprise a bundle of tubes delimited by two end tubes.
  • spacers may be provided between the tubes of the bundle to improve the heat exchange.
  • An end spacer may be disposed on the outer face of each of the end tubes.
  • the exchanger further comprises two collector plates traversed by the ends of the bundle of tubes. Furthermore, a cheek is conventionally arranged directly on the end spacer of one of the end tubes.
  • the cheeks of a heat exchanger and form spacer between the collector plates to maintain a constant spacing between them and facilitate the manufacture of the exchanger. Furthermore, they can be used to support and maintain accessory bodies related to the heat exchanger, such as a motor-fan unit.
  • each cheek comprises a central core, bordered by two longitudinal wings that extend along the cheek.
  • the central core is usually rectangular and flat.
  • Each longitudinal wing protrudes from the plane defined by the central core.
  • the cheek thus has a substantially U-shaped cross section.
  • the longitudinal wings are conventionally designed to stiffen and strengthen the associated cheek.
  • the conventional heat exchanger tubes tend to have a relatively small thickness, to limit the manufacturing costs of the exchanger.
  • the tubes are less and less resistant to thermal shocks and the risks of rupture mentioned above increase accordingly.
  • the patent FR 2 183 375 proposes a transverse fold, in the form of a lyre, on the bracket which connects the cheek to the collector plate or directly on the cheek.
  • the patent application EP 1 195 573 proposes an opening on each cheek so that a portion of the edge of the opening is located near an edge of the cheek. Furthermore, a fold is provided which extends transversely from the aforementioned portion of the edge of the opening to the edge of the cheek located in its vicinity.
  • the present invention improves the situation.
  • the invention proposes a cheek for heat exchanger, in particular heat exchanger of a motor vehicle, said cheek having a substantially flat central core, bordered by two longitudinal wings, and at least one expansion zone to compensate for longitudinal dilations of the cheek.
  • said dilation zone comprises two lateral folds disposed on either side of the longitudinal axis of the cheek ( ⁇ ), each lateral fold extending over a part of the wings and on a corresponding part of a zone for connecting the wings to the central core so that the cross section of the cheek in the expansion zone is substantially U-shaped.
  • the invention also relates to a heat exchanger, in particular for a motor vehicle, comprising such a cheek.
  • Said exchanger comprises, for example, a bundle of tubes and spacers interposed between the tubes of the bundle to promote the exchange of heat.
  • the beam is delimited by two end spacers.
  • the exchanger further comprises two collector plates, intended to be traversed by the ends of the beam, and at least one said cheek is disposed on one of the end spacers.
  • the figure 1 shows a heat exchanger 1, including a heat exchanger for a motor vehicle.
  • the heat exchanger 1 comprises a tube bundle 2 parallel to each other and arranged between two collector plates 4. Each collector plate 4 is traversed by one end of the bundle. Each collecting plate 4 is covered by a collecting box 3.
  • Heat exchangers in the form of corrugated spacers 7 are inserted between the tubes 2.
  • the heat exchange may take place between the refrigerant fluid circulating in the tube and the air passing through the spacers 7.
  • the spacers 7 maintain a spacing between the tubes, and limit the deformation of the tubes when they are traversed by a refrigerant underpressure.
  • the bundle of tubes is delimited by two end tubes 20 and 21 respectively corresponding to the upper end tube and the lower end tube of the bundle.
  • the terms "upper tube” and “lower tube” are used with reference to the position of the heat exchanger of the figure 1 .
  • the tubes 2, 20 and 21 are substantially horizontal.
  • the exchanger may be arranged such that the tubes 2, 20 and 21 are oriented vertically, and in this case, the end tubes are side tubes.
  • end tubes 20 and 21 may be designated respectively “upper tube” and “lower tube” for clarity.
  • an end spacer 70 is disposed on the outer face of the upper tube and an end spacer 71 is disposed on the outer face of the lower tube 21.
  • these end spacers 70 and 71 may designated respectively by “upper interlayer” and “lower spacer”.
  • the heat exchanger further comprises at least one cheek disposed on one of the end spacers. So, with reference to the figure 1 , the heat exchanger comprises a cheek 50 disposed on the upper spacer 70 and a cheek 51 disposed on the lower spacer 71. The cheeks 50 and 51 are provided to maintain a constant gap between the collector plates and facilitate the manufacture of the exchanger.
  • connection between the upper tube 20, the spacer 70, the collector plates 4 and the cheek 50 is generally made by brazing.
  • a refrigerant enters through one of the manifolds 3 and flows through the tubes of the bundle.
  • the high temperature of the coolant causes heat transfer to the walls of the tube and the spacers.
  • the air passing through the spacers makes it possible to cool the refrigerant flowing through the tubes.
  • the tubes then tend to expand longitudinally, under the effect of a high temperature of the refrigerant, which causes high stresses at the area of attachment of the tubes to the collector plates.
  • the use of the cheeks 50 and 51 maintains a spacing between the collector plates, which opposes the longitudinal expansion of the tubes.
  • the temperature of each cheek does not rise at the same time as that of the corresponding end tube, insofar as the cheek is not in direct thermal contact with the refrigerant.
  • Each cheek 50 or 51 is in fact in contact with the corresponding end spacer 70 or 71, along its length, so that the pressure exerted inside the corresponding end tube 20 or 21 is transmitted. to the cheek by the end spacer.
  • the cheeks have a differential expansion which can cause deformation of parts of the exchanger.
  • the exchanger 1 comprises on each cheek 50 and 51 expansion zones, hereinafter designated by the respective areas 80 and 81. These areas are schematically represented by the hatched areas of the figure 1 .
  • the Figure 2A is a diagram showing a top view of a portion of the upper cheek 50, according to a first embodiment of the invention.
  • the invention will be described with reference to the upper cheek 50. However, it may be applied in a similar manner to the lower cheek 51.
  • the cheek 50 generally has a generally U-shaped cross section.
  • it comprises a central core 500, substantially flat, bordered by two longitudinal wings 501 and 502.
  • the wings are generally perpendicular to the plane of the central core 500 and are arranged at the edges of the cheek 50.
  • each longitudinal wing 501 and 502 protrudes from the plane defined by the central core 500.
  • the longitudinal wings have the role of reinforcing and stiffening the cheek 50.
  • the cheek 50 comprises an expansion zone 80, adapted to compensate for a thermal expansion that would occur longitudinally on the cheek, and the cheek also has a U-shaped cross section in this expansion zone.
  • the zone of expansion is represented by the rectangular zone 80 in broken lines.
  • the expansion zone 80 is shaped so as to reduce the tensile stiffness of the cheek and thus compensate for longitudinal thermal expansion. It is further shaped so that the bending stiffness of the cheek is sufficient to ensure acceptable vibration resistance.
  • the expansion zone 80 has an opening 800 arranged in the central core and two lateral folds 871 and 872.
  • Each lateral fold 871 or 872 is directed towards the inside of the cheek.
  • the lateral folds 871 or 872 are in particular directed toward each other.
  • the lateral folds may be symmetrical with each other with respect to the longitudinal axis ⁇ of the cheek.
  • the opening 800 facilitates the production of lateral folds, and the lateral folds make it possible to compensate for the expansion of the cheek.
  • Each lateral fold 871 or 872 extends over that part of the wing 501 or 502 located in the expansion zone, as well as over the corresponding part of the zone of connection of the wing 501 to the central core 500.
  • the wings 501, 502 are connected to the central core 500 in the expansion zone 80.
  • the connection zone may, for example, have substantially a dihedral shape.
  • Each lateral fold 871 or 872 may further extend over a corresponding portion of the central core 500.
  • the tip of each lateral fold 871 or 87 is disposed substantially in the middle of the expansion zone 80, according to the longitudinal axis ⁇ of the cheek.
  • the lateral folds 871 and 872 can be obtained by deformations of the cheek, towards the inside of the cheek, according to lines of vertical folds passing through the middle of the dilation zone.
  • vertical designates the direction perpendicular to the plane of the central core 500. This term is used here with reference to the position of the exchanger of the figure 1 , to clarify more.
  • the deformations 871 and 872 are such that in the expansion zone, the U-shape of the cross-section of the cheek is retained.
  • the dimensions of the U-shaped section of the cheek gradually decrease towards the middle of the expansion zone, along the longitudinal axis ⁇ . This U-shape promotes the rigidity of the cheek and therefore the resistance to vibrations.
  • the length of the opening 800 and the length of the side folds 871 and 872 may be substantially equal to the length of the expansion zone L1.
  • the ratio between the length L1 of the expansion zone 80 and the width Lj of the cheek may be substantially between 0.5 and 1.5.
  • the ratio between the depth L5 of each of the side folds 871 and 872 and the width Lj of the cheek is preferably substantially between 0.05 and 0.3.
  • the opening 800 makes it possible to weaken the cheek along the longitudinal axis ⁇ of the cheek.
  • the cheek is adapted to rupture under the effect of a relatively low stress resulting from longitudinal expansion.
  • the lateral folds 871 and 872 of the wings and the zone of connection of the wings to the central core, in the zone of expansion 80, further contribute to weaken the cheek longitudinally. Moreover, they make it possible to maintain a rigidity in bending of the satisfactory cheek, in the plane perpendicular to the plane of the central core 500. Such rigidity is necessary for keeping the cheek vibrating.
  • the exchanger according to the invention makes it possible to keep the U-section of the cheek along its entire length, and consequently to obtain a satisfactory flexural rigidity in the zone. of dilation 80.
  • the opening 800 according to the first embodiment of the invention may have a substantially rectangular shape whose width may be substantially equal to the width Lj of the cheek 50.
  • the longitudinal edges of the opening 800 may be slightly curved inwards, under the effect of the deformations used to form the side folds 871 and 872.
  • the plate 50 may comprise a single expansion zone 80.
  • the distance between the center of the expansion area 80, passing through the axis ⁇ M, and one of the collector plates 4 is substantially between 75 mm and 300 mm.
  • the cheek 50 may comprise two expansion zones 80.
  • each expansion zone 80 is located near one of the collector plates.
  • the opening 800 may have a general shape of M, whose legs 808 and 809 are generally oriented along the longitudinal axis ⁇ of the cheek.
  • FIGS. 4A and 4B show perspective views of a heat exchanger according to the second embodiment of the invention.
  • the upper cheek 50 of the heat exchanger comprises two expansion zones 80.
  • the legs of the M of each expansion zone may be oriented toward the nearby collector plate, as shown in FIG. Figure 4A .
  • the legs of the M of each of the expansion zones 80 may be oriented towards the center of the cheek, as shown in FIG. Figure 4B .
  • the figure 3 is a diagram showing a top view of a portion of the cheek 50 showing an expansion zone 80 according to the second embodiment of the invention.
  • the M-shaped opening 800 has a central tip 803 and two lateral tips 805 and 807.
  • the legs 808 and 809 are connected by two branches 804 and 806. These connecting branches further delimit the central tip 803 of the "M". According to one aspect of the invention, the ratio between the width L2 of each connection branch 804 and 806 and the width Lj of the cheek is substantially between 0.05 and 0.25.
  • the distance L4 between the upper edge of the central tip 803 and the lower edge of each lateral tip 805 and 807 is substantially between -5mm and + 5mm.
  • the distance L6 between the lower edge of the central point 803 and the upper edge of each point 805 and 807 is substantially greater than or equal to the width L2 of the branches of the central tip 803, and is substantially less than or equal to the length L1 of the expansion zone 80.
  • Such dimensions allow to adapt the shape of the opening 800 to the width of the cheek and to maintain the folds of tabs pressed against the tube during brazing.
  • positioning holes 801 and 802 can be provided on either side of each of the expansion zones 80. These positioning holes make it possible to hold the cheek in the tool, and thus to avoid a variation in length. of the cheek during the realization of the opening 800.
  • the width of the M-shaped opening 800 is preferably substantially less than the width L 1 of the cheek.
  • a band of peripheral material is delimited between each edge of the cheek and the corresponding longitudinal edge of the M, in the portion of the core 500 of the expansion zone 80.
  • the strips of material are indicated by hatching on the figure 3 . These peripheral material strips make it possible to adapt the rigidity in flexion of the cheek 50, for example to the width of the cheek.
  • These strips of material are preferably between about 0 mm and 3 mm.
  • the figure 5 is a diagram showing a top view of a portion of the cheek, according to a variant of the second embodiment of the cheek.
  • a slot 61 or 62 may be provided on the inner wall of each lateral fold 871 and 872, at the tip of the lateral fold. More specifically, each slot extends along the fold line of the corresponding lateral fold, on the inner wall thereof.
  • Each slot 61 and 62 preferably has a section transverse V-shaped, the tip of the V being oriented towards the outside of the cheek.
  • the slots 61 and 62 facilitate the folding of the wings 501 and 502, in case of longitudinal expansion.
  • the opening 800 and the lateral folds 871 and 872 of the expansion zone 80 weaken the central core 500 to compensate for longitudinal expansion of the cheek, while promoting flexural stiffness, in the plane perpendicular to the plane of the cheek. blade.
  • the lateral folds 871 and 872 of the expansion zone can make it possible to hold the upper interlayer pressed against the upper tube during brazing.
  • the lateral tips 805 and 807 of the M-shaped opening also contribute to holding the upper spacer 70 pressed against the upper tube during brazing.
  • FIG 6 is a partial view of the cheek 50 assembled to the spacer 70.
  • Providing a free interleaf pleat increases the suppleness of the cheek, while maintaining an alternating pressure resistance of the satisfactory tube.
  • the heated end tubes can expand under the effect of heating.
  • the cheeks can then undergo differential expansion relative to the end tubes.
  • this differential expansion is compensated by the expansion zone 80, according to the invention, which is deformed so as not to postpone the stresses on the ends of the exchanger.
  • the cheek according to the invention can be made by profiling. Alternatively, it can be obtained by stamping.
  • the opening 800 can be obtained by cutting the cheek in the expansion zone.
  • the lateral folds 871 and 872 can be made by a deformation of the wings and the zone of connection of the wings to the soul, towards the inside of the cheek.
  • the bundle of tubes is first assembled, with spacers 7 inserted between the tubes 2 and tabs 70 and 71 disposed on the end tubes 20 and 21 respectively.
  • the tubes of the bundle are then engaged in the collector plates 4, then the flanges 50 and 51 are fixed to the collector plates.
  • the assembled exchanger is then brazed.
  • the manifolds 3 can be mounted after soldering the exchanger. Alternatively, they can be brazed with the bundle of tubes.
  • the lateral tips 805 and 807 of the opening 800 in the form of "M" make it possible to hold the upper spacer 70 pressed against the tube, during brazing.
  • V of the opening in M It is also possible not to braze the wings of the cheek on the inserts.
  • the present invention is not limited to the embodiments described above. It encompasses all the embodiments that may be envisaged by those skilled in the art.
  • the invention is not limited to an opening 800 in the general shape of a rectangle or an opening in the general shape of "M”. Other forms can be envisaged.
  • an aperture 800 in the general form of "X”, as shown in FIG. figure 7 could be used to implement the invention.

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)
EP10182795.4A 2004-07-20 2005-07-19 Seitenteil und Wärmetauscher mit Seitenteilen Withdrawn EP2282155A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0408018A FR2873434B1 (fr) 2004-07-20 2004-07-20 Echangeur de chaleur muni de joues
EP05790898.0A EP1769209B1 (de) 2004-07-20 2005-07-19 Wärmetauscher mit flanschen

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP05790898.0 Division 2005-07-19

Publications (2)

Publication Number Publication Date
EP2282155A2 true EP2282155A2 (de) 2011-02-09
EP2282155A3 EP2282155A3 (de) 2013-05-22

Family

ID=34949812

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05790898.0A Active EP1769209B1 (de) 2004-07-20 2005-07-19 Wärmetauscher mit flanschen
EP10182795.4A Withdrawn EP2282155A3 (de) 2004-07-20 2005-07-19 Seitenteil und Wärmetauscher mit Seitenteilen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05790898.0A Active EP1769209B1 (de) 2004-07-20 2005-07-19 Wärmetauscher mit flanschen

Country Status (7)

Country Link
US (1) US8136579B2 (de)
EP (2) EP1769209B1 (de)
JP (1) JP4966852B2 (de)
CN (1) CN100513979C (de)
FR (1) FR2873434B1 (de)
PL (1) PL1769209T3 (de)
WO (1) WO2006018498A1 (de)

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WO2006105925A1 (de) * 2005-04-05 2006-10-12 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere für ein kraftfahrzeug
DE102006017610B4 (de) 2006-04-12 2020-08-06 Mahle International Gmbh Wärmetauscher zur Ladeluftkühlung für Kraftfahrzeuge, System
EP1921412B1 (de) * 2006-11-09 2018-02-28 VALEO AUTOSYSTEMY Sp. Z. o.o. Wärmetauscher mit verbesserten Seitenblechen
FR2916836B1 (fr) * 2007-05-30 2015-06-26 Valeo Systemes Thermiques Echangeur de chaleur muni de joues perforees
US8844610B2 (en) * 2008-09-18 2014-09-30 Multistack, LLC Double inlet heat exchanger
US20110024081A1 (en) * 2009-07-29 2011-02-03 Christian Riondet End plate with area of weakness for a heat exchanger
CN102261864A (zh) * 2010-05-28 2011-11-30 扬州英谛车材实业有限公司 一种新型散热器芯子支撑板
JP5009413B2 (ja) * 2010-12-22 2012-08-22 シャープ株式会社 熱交換器及びそれを搭載した空気調和機
DE102011082797A1 (de) * 2011-09-15 2013-03-21 Behr Gmbh & Co. Kg Wärmeübertrager zum Kühlen von Ladeluft
CN103344134B (zh) * 2013-07-04 2015-08-12 江苏扬工动力机械有限公司 散热器
EP3060868B1 (de) 2013-10-23 2019-09-11 Modine Manufacturing Company Wärmetauscher und seitenwand
CN105571374B (zh) * 2016-01-12 2018-03-27 宁波市哈雷换热设备有限公司 一种换热器翅片及具有该换热器翅片的换热器
US10429133B2 (en) * 2016-08-04 2019-10-01 Hanon Systems Heat exchanger element with thermal expansion feature
FR3055697B1 (fr) 2016-09-02 2019-05-03 Valeo Systemes Thermiques Support de brasage pour echangeur de chaleur, echangeur de chaleur associe.
DE102017206113A1 (de) * 2017-04-10 2018-10-11 Mahle International Gmbh Wärmeübertrager für ein Kraftfahrzeug
KR102182776B1 (ko) * 2019-03-15 2020-11-25 에스트라오토모티브시스템 주식회사 차량용 열교환기
US20210333055A1 (en) * 2020-04-28 2021-10-28 Hamilton Sundstrand Corporation Stress relieving additively manufactured heat exchanger fin design
US20210381778A1 (en) * 2020-06-04 2021-12-09 Denso International America, Inc. Heat exchanger with thermal stress-relief areas

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FR2183375A5 (de) 1972-05-04 1973-12-14 Chausson Usines Sa
US6328098B1 (en) 1998-11-10 2001-12-11 Valeo Inc. Side member for heat exchanger and heat exchanger incorporating side plate
EP1195573A1 (de) 2000-10-04 2002-04-10 Modine Manufacturing Company Wärmetauscher und Verfahren zu dessen Herstellung

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Publication number Priority date Publication date Assignee Title
FR2183375A5 (de) 1972-05-04 1973-12-14 Chausson Usines Sa
US6328098B1 (en) 1998-11-10 2001-12-11 Valeo Inc. Side member for heat exchanger and heat exchanger incorporating side plate
EP1195573A1 (de) 2000-10-04 2002-04-10 Modine Manufacturing Company Wärmetauscher und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
US8136579B2 (en) 2012-03-20
EP1769209B1 (de) 2013-05-22
EP1769209A1 (de) 2007-04-04
CN101014822A (zh) 2007-08-08
JP2008506924A (ja) 2008-03-06
FR2873434A1 (fr) 2006-01-27
CN100513979C (zh) 2009-07-15
JP4966852B2 (ja) 2012-07-04
US20080169090A1 (en) 2008-07-17
FR2873434B1 (fr) 2017-12-29
WO2006018498A1 (fr) 2006-02-23
EP2282155A3 (de) 2013-05-22
PL1769209T3 (pl) 2013-11-29

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