EP1484569A2 - Selbstverriegelnde Befestigungslasche - Google Patents

Selbstverriegelnde Befestigungslasche Download PDF

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Publication number
EP1484569A2
EP1484569A2 EP20040460021 EP04460021A EP1484569A2 EP 1484569 A2 EP1484569 A2 EP 1484569A2 EP 20040460021 EP20040460021 EP 20040460021 EP 04460021 A EP04460021 A EP 04460021A EP 1484569 A2 EP1484569 A2 EP 1484569A2
Authority
EP
European Patent Office
Prior art keywords
manifold
bracket
mounting
clasp
cut
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Withdrawn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
EP20040460021
Other languages
English (en)
French (fr)
Inventor
Maciej Kozikowski
Krzystof Wawrocki
Pawel Borowczyk
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
Publication of EP1484569A2 publication Critical patent/EP1484569A2/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Withdrawn legal-status Critical Current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
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures

Definitions

  • the invention relates to a self-locking mounting bracket for fastening on a pipeline, in particular on a heat exchanger manifold.
  • Brackets of this kind are used as support points for fastening the exchanger to the bearing structure or as a basis for fixing other elements to the heat exchanger body, therefore the suitable rigidity, reliability of the attachment and resistance to mechanical vibrations generated during operation of the heat exchanger are necessary.
  • the required reliability of the attachment is commonly achieved by brazing brackets to the manifold.
  • special holders are applied or the components are preliminarily stitched together by a number of short welds.
  • Self-locking brackets are also used.
  • the patent US 5,183,103 discloses a mounting bracket comprising a pair of embracing portions capable of resiliently engaging the exterior of the manifold to keep the bracket in place prior to brazing of the components of the heat exchanger together.
  • the bracket may be preliminarily connected to the heat exchanger manifold, without the need of using any special tools before the "one-shot" brazing operation, thus facilitating the manufacture of the heat exchanger. Since no additional appliances are necessary, it is possible to accommodate a larger number of heat exchangers in a furnace, hence substantially increasing production yield.
  • bracket does not secure its vertical position. Bracket may be accidentally displaced e.g. during transport of a heat exchanger to a furnace before brazing. Accidental swivelling around the manifold tube is also possible.
  • the aim of the present invention is to provide a single-unit bracket that enables easy, durable and detachable fastening to an arterial pipeline of any cross-section, preferably at a number of points along the bracket height.
  • the aim of the present invention is, in particular, a bracket structure for a heat exchanger, enabling detachable preliminary fastening of the bracket to the heat exchanger manifold, preferably at a number of points along its height, before one-shot brazing process.
  • a self-locking mounting bracket for fastening on a pipeline, in particular on a heat exchanger manifold, characterised in that it comprises at least two mounting clasps linked by a connecting surface and having a shape at least partially reflecting the pipeline cross-section, and at least one assembling surface, wherein the first mounting clasp comprises at least one cut-out substantially parallel to the manifold axis and the second mounting clasp is capable of snapping on the manifold and comprises at least one cut-out substantially perpendicular to the manifold axis and wherein the manifold comprises mounting projections for the cut-outs in the first and in the second clasp.
  • bracket To attach the bracket to the manifold, one should tilt the bracket back at a certain angle to the manifold and slide the cut-outs of the first mounting clasp onto one pair of the mounting projections, then swivel the other end of the bracket towards the manifold and drive the cut-outs of the second clasp onto the corresponding mounting projections, thus locking the clasp to the manifold. Thanks to that the bracket is reliably attached.
  • the cut-outs perpendicular to the manifold axis secure the bracket against displacement along the manifold axis, whereas the parallel cut-outs secure the bracket from swivelling around the manifold axis.
  • the bracket has a form of an integral shape made by a pressing method.
  • the bracket can be attached to the manifold at a number of locations along the manifold length. Under some circumstances, however, it may be favourable to provide only one pair or several pairs of projections, in order to render it possible to attach the bracket only at predetermined locations along the manifold length.
  • the mounting projections have a form of convex beads on the manifold surface.
  • the angular spacing of the second mounting clasp is greater than 180°.
  • the second clasp engages behind the manifold axis, thus creating a snapping latch, which preserves the bracket from sliding out from the manifold.
  • the second mounting clasp ends with mounting tongues that embrace the manifold cross-section.
  • Said tongues enable the attachment of the bracket to manifolds of various cross-sections.
  • the only requirement is that arms of the clasp should provide sufficient clamping force on the side of the manifold which is opposite the bracket.
  • the cut-out that is substantially perpendicular to the manifold axis may turn upwardly, thus creating a snap fastener.
  • bracket enables the application of the second clasps having angular spacing of less than 180°. This makes it possible to attach the bracket e.g. on a two-part partitioned manifold.
  • the connecting surface of the bracket comprises corrugations substantially perpendicular to the bracket axis.
  • corrugations The main purpose of said corrugations is to increase the crosswise rigidity of the bracket mounting surfaces, which serve either as attachment points for additional components of a heat exchanger, or support points for the heat exchanger itself. Moreover, such corrugations reduce the longitudinal rigidity of the bracket and render it possible to squeeze the bracket axially and attach it to the manifold even if the spacing between the corresponding mounting projections is slightly different to the distance between the end of the vertical cut-out of the first clasp and the cut-out of the second clasp.
  • the connecting surface contacts the surface of the manifold, and the connecting surface and/or the manifold are coated with a brazing agent.
  • Fig. 1 to Fig. 7 relate to a typical heat exchanger 1, having a cooling core 2 fluidly connected with two manifolds 3.
  • the bracket 4 illustrated in Fig. 1 to Fig. 4 has the form of a single-unit profiled element manufactured of an aluminium sheet by a pressing method.
  • the connecting surface 5 is shaped, from which two mounting surfaces 6 and 7 fork in two different directions.
  • Each of the mounting surfaces has openings serving as mounting places of the bracket 4 after its attachment to a bearing structure, which is not shown in the drawings.
  • Both the connecting surface 5 and the mounting surfaces 6 and 7 comprise corrugations 8 which increase the crosswise rigidity of the bracket.
  • the connecting surface 5 develops, from its bottom side, to the first mounting clasp 9, and from its top side ⁇ to the second mounting clasp 10.
  • the shapes of mounting clasps 9 and 10 correspond to the round cross-section of the manifold 3, wherein the angular spacing of clasps is greater than 180°, so that they engage around the manifold 3, behind its central axis.
  • the first mounting clasps 9 has two cut-outs 91 (drawing Fig. 3) parallel and symmetrical to the manifold 3 axis, wherein the second mounting clasp 10 has two cut-outs 101 (drawing Fig. 4), perpendicular and symmetrical to the manifold 3 axis.
  • the manifold 3 has on its both sides a number of pairs of mounting projections 31, disposed within equal distances along the length of the manifold. Integral multiple of the distance h between two neighbouring mounting projections is approximately equal to the distance H between the ends of the vertical cut-outs 91 in the first mounting clasp 9 and the cut-outs 101 in the second mounting clasp 10 (n ⁇ h ⁇ H). That enables attaching the bracket to the manifold at a number of locations along the manifold 3 length.
  • the mounting projections 31 are shaped here as convex beads on the manifold 3 wall, made by means of chiselling the manifold 3 at certain points along its surface. In the presented embodiment, the total height H includes five mounting beads 31 located within equal distances h from one another.
  • Attaching the bracket 4 to the manifold 3 is relatively simple. Firstly, having the bracket 4 tilted back at some angle to the manifold axis one should slide the cut-outs 91 of the firsts mounting clasp 9 onto one pair of the mounting projections 31. Then, having the one end of the bracket attached, one should swivel the bracket towards the manifold 3 and drive the cut-outs of the second clasp 10 till the clasp latches on around the manifold 3.
  • the cut-outs 101 secure the bracket against displacement along the manifold axis, whereas the cut-outs 91 secure the bracket against rotation and detachment.
  • Fig. 5 and Fig. 6 present another embodiment of the bracket according to the present invention.
  • the bracket components that correspond to the ones from Fig. 1 to Fig. 4 are marked by the same reference numerals.
  • the bracket 4 as shown in Fig. 5 has only one mounting surface 6, which is used for mounting a fan shroud (not shown in the drawing).
  • the manifold 3 is manufactured as a two-part unit, composed of two semicircular plates 32 and 33, whereas the mounting projections have a form of cylindrical rods 31'.
  • the shape of the mounting clasps 9 and 10 substantially reflect round cross-section of the manifold 3, however its angular spacing is less than 180°, so the clasp ends reach the protruding joint 34 between the plates 32 and 33 of the manifold 3.
  • the first mounting clasp 9 comprises a pair of cut-outs 91 parallel to the manifold 3 axis, whereas the second clasp 10 has two cut-outs 101' which turn upwardly at their ends, thus creating a snap fastener 102.
  • Attaching the bracket 4 to the manifold 3 consists of sliding the cut-outs 91 of the first mounting clasp 9 onto one pair of fixing rods 31'; swivelling the bracket towards the manifold 3; sliding the cut-outs 101' onto the corresponding pair of fixing rods 31' and finally lowering the bracket in order to lock the second mounting clasp 10 onto the manifold 3.
  • the connecting surface 5 contacts the manifold surface and is coated from its inner side by a brazing agent, which during furnace brazing of the heat exchanger melts, providing a reliable and permanent fastening of the bracket 4 to the manifold 3.
  • a brazing agent which during furnace brazing of the heat exchanger melts, providing a reliable and permanent fastening of the bracket 4 to the manifold 3.
  • Fig. 7 presents one more embodiment of the bracket according to the present invention.
  • the bracket was designed to be attached to the pipeline 3" having a pentagonal cross-section.
  • the appropriate snapping latch arises exclusively by virtue of matching the clasp 10 with the arterial pipeline 3" shape.
  • the application of clasps with cut-outs secures the bracket against displacement and rotation.
  • the bracket can easily be attached and detached before brazing.
  • no additional supporting facilities are necessary for brazing, which significantly reduces the working time and decreases the number of additional components required for assembling the heat exchanger, hence enabling manufacturing of the heat exchanger by means of the one-shot brazing operation.

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)
EP20040460021 2003-06-05 2004-06-03 Selbstverriegelnde Befestigungslasche Withdrawn EP1484569A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL03360511A PL360511A1 (en) 2003-06-05 2003-06-05 Self-acting snap fastening assembly bracket
PL36051103 2003-06-05

Publications (1)

Publication Number Publication Date
EP1484569A2 true EP1484569A2 (de) 2004-12-08

Family

ID=33157456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040460021 Withdrawn EP1484569A2 (de) 2003-06-05 2004-06-03 Selbstverriegelnde Befestigungslasche

Country Status (2)

Country Link
EP (1) EP1484569A2 (de)
PL (1) PL360511A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004051207A1 (de) * 2004-10-20 2006-05-04 Behr Gmbh & Co. Kg Anordnung zur gegenseitigen Befestigung von Wärmeübertragern, insbesondere in einem Kraftfahrzeug
DE102008047078A1 (de) 2007-09-12 2009-05-20 Behr Gmbh & Co. Kg Wärmetauschereinrichtung für Kraftfahrzeuge
US11338666B2 (en) 2020-03-05 2022-05-24 Denso International America, Inc. Heat exchanging system
EP4148368A1 (de) * 2021-09-08 2023-03-15 Valeo Autosystemy SP. Z.O.O. Wärmetauscher

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183103A (en) 1990-10-31 1993-02-02 Showa Aluminum Kabushiki Kaisha Heat exchanger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183103A (en) 1990-10-31 1993-02-02 Showa Aluminum Kabushiki Kaisha Heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004051207A1 (de) * 2004-10-20 2006-05-04 Behr Gmbh & Co. Kg Anordnung zur gegenseitigen Befestigung von Wärmeübertragern, insbesondere in einem Kraftfahrzeug
DE102008047078A1 (de) 2007-09-12 2009-05-20 Behr Gmbh & Co. Kg Wärmetauschereinrichtung für Kraftfahrzeuge
US11338666B2 (en) 2020-03-05 2022-05-24 Denso International America, Inc. Heat exchanging system
EP4148368A1 (de) * 2021-09-08 2023-03-15 Valeo Autosystemy SP. Z.O.O. Wärmetauscher
WO2023036885A1 (en) * 2021-09-08 2023-03-16 Valeo Autosystemy Sp. Z O.O. A heat exchanger

Also Published As

Publication number Publication date
PL360511A1 (en) 2004-12-13

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