EP4113046B1 - Adaptive side plate for automotive heat exchanger - Google Patents

Adaptive side plate for automotive heat exchanger Download PDF

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Publication number
EP4113046B1
EP4113046B1 EP22181729.9A EP22181729A EP4113046B1 EP 4113046 B1 EP4113046 B1 EP 4113046B1 EP 22181729 A EP22181729 A EP 22181729A EP 4113046 B1 EP4113046 B1 EP 4113046B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
side plate
manifold
extends
opposite sides
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
EP22181729.9A
Other languages
German (de)
French (fr)
Other versions
EP4113046C0 (en
EP4113046A1 (en
Inventor
Paolo CARANZANO
Giovanni Toscano Rivalta
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.)
Denso Thermal Systems SpA
Original Assignee
Denso Thermal Systems SpA
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 Denso Thermal Systems SpA filed Critical Denso Thermal Systems SpA
Publication of EP4113046A1 publication Critical patent/EP4113046A1/en
Application granted granted Critical
Publication of EP4113046B1 publication Critical patent/EP4113046B1/en
Publication of EP4113046C0 publication Critical patent/EP4113046C0/en
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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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • 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
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • 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
    • F28F2225/02—Reinforcing means for casings
    • 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
    • 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

Definitions

  • the present invention relates generally to the field of heat exchangers for automotive applications and more specifically to heat exchangers comprising manifolds formed from metal tubular vessels.
  • a heat exchanger which comprises a side plate with a zig-zag shaped end tab to allow thermal expansion.
  • US 2002 050 348 A1 discloses a side plate including an end tab with a concavity corresponding to the cylindrical wall of the manifold.
  • US 2006 272 801 A1 shows a corner assembly according to the preamble of claim 1.
  • One object of the present invention is to provide a device to compensate for the tolerances of the heat exchanger and ensure proper contact between the side plate and the manifold.
  • the end tab acts as an adapter for the tolerance of the pack in press-fit.
  • the contour on the circumference of the manifold, cooperating with the support end of the end tab prevents the side plate from moving during the production process.
  • the arrangement according to the invention is also an improvement for bursting pressures.
  • a preferred embodiment of the invention is a heat exchanger as defined in the dependent claim.
  • a heat exchanger for automotive applications is depicted, denoted collectively as 1.
  • the heat exchanger 1 comprises a plurality of parallel tubes 11 extending between two opposite sides of the heat exchanger (depicted in Fig. 1 and 2 , respectively), and a first and second manifold 13, 15 respectively arranged at each of said two opposite sides of the heat exchanger.
  • the tubes 11 are fluidly connected to the manifolds 13, 15 for the transport of a refrigerant fluid to allow said fluid to exchange thermal energy with a gaseous fluid, specifically air, which is passed between the tubes 11 in a direction substantially perpendicular to the plane defined by the bundle of tubes 11.
  • fins 17 are interposed between the adjacent tubes 11.
  • Each manifold 13, 15 includes a tubular metal vessel 13a, 15a extending along a respective longitudinal axis z, and an end closure element 13b, also made of metal material, arranged at each end of the tubular vessel 13a, 15a (for convenience only one end of the manifolds is shown in the figures).
  • the heat exchanger 1 further comprises a first and second side plate 19 ("panel") each arranged at a respective further side of the heat exchanger, orthogonal to the two opposite sides of the heat exchanger at which the manifolds 13, 15 are arranged. Only one such plate 19 is shown in the figures, but it is understood that the one not shown has a similar structure to the one shown in the drawings.
  • Each side plate 19 consists of a flat metal plate that extends orthogonally to the manifolds 13, 15, and has at each of its ends an end tab 21 having a width less than the width of the remaining part of the side plate 19.
  • the structural union between the various metal components of the exchanger described above is achieved by material coupling, such as by welding and/or brazing.
  • each end of the manifolds 13 and 15 is joined to one of the respective plates 19 in the following way.
  • Each end tab 21 extends in a zigzag pattern from the respective end of the side plate 19 and comprises a support end 21a in contact with the wall of the tubular vessel 13a, 15a.
  • the support end 21a has, according to a plan view, a concavity facing the respective manifold 13, 15 configured to fit the curvature of the wall of the manifold.
  • the end tab 21 comprises a descending part 21', which extends from the side plate 21, and an ascending part 21", which is connected to the descending part 21" by a bend 21′′′ and provides the supporting end 21a.
  • descending means that the relevant part of the end tab 21 extends from the elevation of the side plate 19 so as to approach the bundle of tubes 11 of the heat exchanger 1, ending in the bend 21′′′
  • ascending means that the relevant part of the end tab 21 extends from the bend 21′′′ so as to move away from the bundle of tubes 11.
  • Said zigzag pattern therefore refers to a direction parallel to the longitudinal axis z of the manifold 13, 15, that is, to the direction of the thickness of the side plate 19.
  • the end tab 21 acts as an adapter for the tolerance in the distances between the side plate and the manifold. Further, the curved shape of the manifold, cooperating with the support end 21a of the end tab 21 prevents the side plate 19 from moving during the production process.

Landscapes

  • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

  • The present invention relates generally to the field of heat exchangers for automotive applications and more specifically to heat exchangers comprising manifolds formed from metal tubular vessels.
  • In said type of heat exchanger, it has been noted that the manufacturing process causes the side plates, which serve to reinforce the pack forming the heat exchanger, to generally have ends that are separated from the manifolds by gaps of varying sizes. This fact is undesirable from a structural point of view.
  • From JP 2004 251493 A a heat exchanger is known which comprises a side plate with a zig-zag shaped end tab to allow thermal expansion. US 2002 050 348 A1 discloses a side plate including an end tab with a concavity corresponding to the cylindrical wall of the manifold. US 2006 272 801 A1 shows a corner assembly according to the preamble of claim 1.
  • One object of the present invention is to provide a device to compensate for the tolerances of the heat exchanger and ensure proper contact between the side plate and the manifold.
  • For this object, according to the present invention, a corner assembly arrangement for a heat exchanger according to claim 1 is proposed, comprising
    • a manifold including a tubular metal vessel, and
    • a side plate consisting of a flat metal plate that extends orthogonally to the manifold and is attached to the end thereof,
    • wherein the side plate comprises an end tab having a width that is less than the width of the remaining part of the side plate, wherein the end tab extends in a zigzag pattern from a respective end of the side plate and comprises a support end that is in contact with a wall of the manifold, said support end having, according to a plan view, a concavity configured to fit the wall of the manifold, wherein the end tab comprises a descending part extending from the side plate and an ascending part that is connected to the descending part by a bend and provides said support end.
  • With the arrangement according to the invention, the end tab acts as an adapter for the tolerance of the pack in press-fit. Moreover, the contour on the circumference of the manifold, cooperating with the support end of the end tab, prevents the side plate from moving during the production process. Advantageously, the arrangement according to the invention is also an improvement for bursting pressures.
  • A preferred embodiment of the invention is a heat exchanger as defined in the dependent claim.
  • Other features and advantages of the arrangement according to the invention will become clearer from the following detailed description of an embodiment of the invention, made with reference to the accompanying drawings, provided purely for illustrative and non-limiting purposes, in which:
    • Fig. 1 is a front elevation view of a corner portion of a heat exchanger according to the invention;
    • Fig. 2 is an enlarged scale view of another corner portion of the heat exchanger in Fig. 1;
    • Fig. 3 and 4 are a perspective view and a plan view of a manifold/side plate assembly, respectively; and
    • Fig. 5-7 are a perspective view, a plan view, and a cross-sectional view (taken along the line B-B of Fig. 6) of a side plate, respectively.
  • With reference to Fig. 1 and 2, a heat exchanger for automotive applications is depicted, denoted collectively as 1.
  • The heat exchanger 1 comprises a plurality of parallel tubes 11 extending between two opposite sides of the heat exchanger (depicted in Fig. 1 and 2, respectively), and a first and second manifold 13, 15 respectively arranged at each of said two opposite sides of the heat exchanger. The tubes 11 are fluidly connected to the manifolds 13, 15 for the transport of a refrigerant fluid to allow said fluid to exchange thermal energy with a gaseous fluid, specifically air, which is passed between the tubes 11 in a direction substantially perpendicular to the plane defined by the bundle of tubes 11. For this purpose, fins 17 are interposed between the adjacent tubes 11.
  • In Fig. 3 and 4, only one end of only one manifold is shown for convenience, but it is understood that the end not shown and the manifold not shown have a similar structure to that shown in the drawings.
  • Each manifold 13, 15 includes a tubular metal vessel 13a, 15a extending along a respective longitudinal axis z, and an end closure element 13b, also made of metal material, arranged at each end of the tubular vessel 13a, 15a (for convenience only one end of the manifolds is shown in the figures).
  • The heat exchanger 1 further comprises a first and second side plate 19 ("panel") each arranged at a respective further side of the heat exchanger, orthogonal to the two opposite sides of the heat exchanger at which the manifolds 13, 15 are arranged. Only one such plate 19 is shown in the figures, but it is understood that the one not shown has a similar structure to the one shown in the drawings.
  • Each side plate 19 consists of a flat metal plate that extends orthogonally to the manifolds 13, 15, and has at each of its ends an end tab 21 having a width less than the width of the remaining part of the side plate 19.
  • In general, the structural union between the various metal components of the exchanger described above is achieved by material coupling, such as by welding and/or brazing.
  • Specifically, with reference to Fig. 3 through 7, at each of the corners of the heat exchanger 1, each end of the manifolds 13 and 15 is joined to one of the respective plates 19 in the following way.
  • Each end tab 21 extends in a zigzag pattern from the respective end of the side plate 19 and comprises a support end 21a in contact with the wall of the tubular vessel 13a, 15a. As may be seen in particular in Fig. 4 and 6, the support end 21a has, according to a plan view, a concavity facing the respective manifold 13, 15 configured to fit the curvature of the wall of the manifold.
  • Specifically, the end tab 21 comprises a descending part 21', which extends from the side plate 21, and an ascending part 21", which is connected to the descending part 21" by a bend 21‴ and provides the supporting end 21a. For the purposes of this description, "descending" means that the relevant part of the end tab 21 extends from the elevation of the side plate 19 so as to approach the bundle of tubes 11 of the heat exchanger 1, ending in the bend 21‴, while "ascending" means that the relevant part of the end tab 21 extends from the bend 21‴ so as to move away from the bundle of tubes 11. Said zigzag pattern therefore refers to a direction parallel to the longitudinal axis z of the manifold 13, 15, that is, to the direction of the thickness of the side plate 19.
  • With the arrangement described above, the end tab 21 acts as an adapter for the tolerance in the distances between the side plate and the manifold. Further, the curved shape of the manifold, cooperating with the support end 21a of the end tab 21 prevents the side plate 19 from moving during the production process.

Claims (2)

  1. A corner assembly arrangement for a heat exchanger, comprising
    a manifold (13, 15) including a tubular metal vessel (13a, 15a), and
    a side plate (19) consisting of a flat metal sheet, which extends orthogonally to the manifold (13, 15) and is fixed to the end thereof,
    whereby the side plate (19) comprises an end tab (21) having a width less than the width of the remaining part of the side plate (19), characterized in that
    the end tab (21) extends in a zigzag pattern from a respective end of the side plate (19) and comprises a support end (21a) in contact with a wall of the manifold (13, 15), said support end having, according to a plan view, a concavity configured to fit the wall of the manifold (13, 15), wherein the end tab (21) comprises a descending part (21'), which extends from the side plate (19), and an ascending part (21"), which is connected to the descending part (21') by a bend (21‴) and provides said support end.
  2. A heat exchanger comprising
    a plurality of parallel tubes (11) extending between two opposite sides of the heat exchanger,
    a first and a second manifold (13, 15) respectively arranged at each of said two opposite sides of the heat exchanger,
    a first and a second side plate (19) each arranged at a respective further side of the heat exchanger, orthogonal to said two opposite sides of the heat exchanger,
    characterized by comprising, at each respective corner of the heat exchanger, a corner assembly arrangement according to the preceding claim
EP22181729.9A 2021-07-02 2022-06-29 Adaptive side plate for automotive heat exchanger Active EP4113046B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000017504A IT202100017504A1 (en) 2021-07-02 2021-07-02 Adaptive side plate for automotive heat exchanger

Publications (3)

Publication Number Publication Date
EP4113046A1 EP4113046A1 (en) 2023-01-04
EP4113046B1 true EP4113046B1 (en) 2023-11-15
EP4113046C0 EP4113046C0 (en) 2023-11-15

Family

ID=77910943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22181729.9A Active EP4113046B1 (en) 2021-07-02 2022-06-29 Adaptive side plate for automotive heat exchanger

Country Status (4)

Country Link
US (1) US20230003465A1 (en)
EP (1) EP4113046B1 (en)
BR (1) BR102022013218A2 (en)
IT (1) IT202100017504A1 (en)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2224727B1 (en) * 1973-04-04 1975-08-22 Chausson Usines Sa
JPS61154479U (en) * 1985-03-15 1986-09-25
JPH0694327A (en) * 1992-09-14 1994-04-05 Showa Alum Corp Heat-exchanger
JP2603451Y2 (en) * 1993-08-09 2000-03-13 サンデン株式会社 Heat exchanger
JP2927711B2 (en) * 1995-09-18 1999-07-28 東京ラヂエーター製造株式会社 Thermal distortion prevention structure of heat exchanger
JP2002147973A (en) * 2000-08-30 2002-05-22 Denso Corp Duplex heat exchanger
JP2002139290A (en) * 2000-10-31 2002-05-17 Toyo Radiator Co Ltd Module type heat exchanger and manufacturing method thereof
JP4592992B2 (en) * 2001-03-28 2010-12-08 昭和電工株式会社 Heat exchanger
JP4318023B2 (en) * 2003-02-18 2009-08-19 株式会社ティラド Aluminum heat exchanger
US20060272801A1 (en) * 2003-04-28 2006-12-07 Showa Denko K.K Side plate for heat exchanger, heat exchanger and process for fabricating the heat exchanger
DE102007052888A1 (en) * 2007-11-02 2009-05-07 Behr Gmbh & Co. Kg Heat transfer radiator, for motor vehicle air conditioning, has assembled water tanks with flat tubes and stiffened side sections soldered at the narrow sides of the unit
ITUB20160140A1 (en) * 2016-01-20 2017-07-20 Denso Thermal Systems Spa Compact side plate for automotive condenser.
EP3290848B1 (en) * 2016-09-02 2020-05-06 Modine Manufacturing Company Header for a heat exchanger, and method of making the same

Also Published As

Publication number Publication date
IT202100017504A1 (en) 2023-01-02
US20230003465A1 (en) 2023-01-05
EP4113046C0 (en) 2023-11-15
EP4113046A1 (en) 2023-01-04
BR102022013218A2 (en) 2023-01-10

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