EP1880135A1 - Dispositif de raccordement pour conduits de réfrigérant - Google Patents

Dispositif de raccordement pour conduits de réfrigérant

Info

Publication number
EP1880135A1
EP1880135A1 EP06707508A EP06707508A EP1880135A1 EP 1880135 A1 EP1880135 A1 EP 1880135A1 EP 06707508 A EP06707508 A EP 06707508A EP 06707508 A EP06707508 A EP 06707508A EP 1880135 A1 EP1880135 A1 EP 1880135A1
Authority
EP
European Patent Office
Prior art keywords
line end
piece
end piece
coupling piece
air conditioning
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Withdrawn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
EP06707508A
Other languages
German (de)
English (en)
Inventor
Andreas Wildermuth
Alex Werner
Mike Eismann
Wolfgang Plischke
Klaus Lesser
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.)
ContiTech Kuehner GmbH and Cie KG
Original Assignee
ContiTech Kuehner GmbH and Cie KG
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 ContiTech Kuehner GmbH and Cie KG filed Critical ContiTech Kuehner GmbH and Cie KG
Publication of EP1880135A1 publication Critical patent/EP1880135A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/086—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe fixed with screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants

Definitions

  • the invention relates to a connection arrangement for mobile refrigeration systems for connecting refrigerant pipes with other air conditioning components, in particular for the refrigerant CO 2 , from a first coupling piece movably connectable first coupler and a further air conditioning circuit component, wherein the first coupling piece and the other air conditioning circuit component so assembled by fastening means are that the first line end piece and the further air conditioning circuit component via a respective bore and radially extending sealing surfaces are interconnected, wherein between the sealing surfaces, a sealing ring is arranged and as fastening means a single, laterally offset from the sealing surfaces arranged screw is provided and that in Distance from the screw on the side facing away from the sealing surfaces, a non-compressible shaped body is arranged as a spacer between the coupling pieces.
  • connection arrangement for refrigerant pipes of the type mentioned is disclosed.
  • the line end pieces are firmly bonded, for example by soldering, firmly connected to the respective coupling pieces.
  • the sealing surfaces are formed by the coupling pieces and are produced by machining.
  • the heat input during soldering creates a heat distortion in the coupling pieces, which leads to changes in the sealing surfaces in shape and position.
  • the dimensional fluctuations of the resulting gap between the connected coupling pieces are therefore very large and must be compensated by the flat gasket used to produce the required tightness.
  • the process reliability of this procedure is problematic.
  • the invention is therefore based on the object to improve the connection arrangement described such that a thermal distortion of the components no longer occurs.
  • the first line end piece is passed through the bore of the first coupling piece and at its further climatic circuit component facing and protruding from the first coupling piece has a radially extending, produced by plastic deformation of the first line end chipless sealing surface, that the first line end in the region of the bore of the first coupling piece has a widening, such that the first coupling piece is fixed against rotation and immovable on the first line end piece and that the first coupling piece at the end of the further Klima Vietnameseonnekomponente the end of the bore facing the further air conditioning circuit component annular collar, wherein the annular collar of the further Klimaniklaufkomponente remote rear side of the radial sealing surface of the first line end piece is assigned and in fully assembled m Pressing the state on this back side presses the radial sealing surface of the first line end piece onto the sealing ring.
  • This arrangement allows a positive and frictional connection of the first coupling piece with the first line end piece without a harmful heat input. Soldering or other thermal bonding methods are not required.
  • the gap tolerance between the radial sealing surface of the first line end piece and the further air conditioning circuit component is smaller, so that the sealing ring has to compensate for less irregularities.
  • the strength properties of the components are not negatively affected by heat input.
  • the sealing ring is a metallic flat ring with circumferential bead.
  • a metallic flat ring can be advantageously stick together when screwing the inventive connection assembly and is in this case particularly dense and resistant to subcritical or supercritical CO 2 .
  • Such a metallic flat ring is particularly dense and resistant to the refrigerant R 744 and so-called PAG oils.
  • conventional kausanord- the use of metallic flat rings as a sealing ring is not readily possible. In particular, a great deal of force must be used to compress the flat rings in order to achieve absolute tightness.
  • connection arrangement according to the invention, however, such compression is simplified, since at least one of the sealing surfaces consists of the material of the line end piece, which is softer than the material of the coupling piece.
  • This softer material offers by the possibility of relatively easy plastic deformability a high adaptation potential to a metallic sealing ring.
  • a development of the invention provides that the sealing ring is inserted in a flat plastic cap, which is arranged between the sealing surfaces, wherein the plastic cap and the first coupling piece and the first line end piece are formed with its radial sealing surface such that the plastic cap before the screwing of the first coupling piece with the further air conditioning circuit component can be fastened easily between the sealing surfaces, in particular on the edge of the radial sealing surface of the first line end piece can be clipped.
  • Such a plastic cap serves as a captive of the sealing ring, since the sealing ring is not fixed before the screw. Due to the plastic cap also a centering of the sealing ring is achieved on the sealing surface.
  • the further Klimalcreislaufkomponente is composed of a second coupling piece and a second line end, wherein the second line end is passed through a bore of the second coupling piece and at its first coupling piece facing and protruding from the second coupling end a radially extending, has a non-cutting sealing surface produced by plastic deformation of the second line end piece, the second line end piece has an extension in the region of the bore of the second coupling piece, such that the second coupling piece is secured against rotation and immovable on the second line end piece and that the second coupling piece exhibits a connection with the first coupling piece at the end of the bore facing the first coupling piece having annular collar, wherein the annular collar of the first coupling piece facing away from the rear side of the radial sealing surface of the second line end piece is assigned and pressed in the assembled state on this back pressing the radial sealing surface of the second line end piece on the sealing ring.
  • the line end pieces are arranged in alignment with one another according to a development of the invention.
  • Fig. 1 is a schematic cross-sectional view of the invention
  • FIG. 2 shows a detail enlargement of FIG. 1 and FIG. 3 shows an enlarged detail of the connection arrangement according to the invention with two line end sections
  • the connecting arrangement 1 for refrigerant lines 2 shown in FIG. 1 consists of a first coupling piece 4 tightly connected to a first line end piece 3 and a further air conditioning circuit component 5.
  • the first coupling piece 4 has a bore 6 through which the pipe end piece 3 is passed.
  • the first line end piece 3 is widened in the region of the bore 6 by an amount not visible here, so that a press connection results between the first line end piece 3 and the first coupling piece 4.
  • the coupling piece 4 and the other air conditioning circuit component 5 are clamped together by means of a screw 7.
  • a non-compressible spacer 9 is arranged at a predetermined distance from the screw 7 and on the bore 6 opposite side of the screw 7.
  • Fig. 2 is a detail enlargement of Fig. 1 is shown.
  • the first line end piece 3 has at its the further air cycle component 5 facing and protruding from the first coupling piece 4 end 10 a radially extending, by plastic deformation of the first line end 3 without cutting generated sealing surface 11, which has a larger diameter than the non-cutting deformation Remainder of the first line end piece
  • the first coupling piece 4 has at the end of the bore 6 facing the further air-conditioning circuit component 5 an annular collar 12 which is assigned to the further air-conditioning component 5, the annular collar 12 of the rear side 13 of the radial sealing surface 11 of the first line end piece facing away from the further air-conditioning cycle component 5 3 is assigned and pressing in the assembled state on this back 13 pressing the radial sealing surface 11 of the first line end piece 3 on a sealing ring 14.
  • the sealing ring 14 is held by a plastic cap 15, which is clipped over the edge 16 of the radial sealing surface 11 of the first line end piece 3.
  • the sealing ring 14 is pressed via the annular collar 12 through the first coupling piece 4 against the further air conditioning component 5, wherein the further air conditioning circuit component 5 in turn has a sealing surface 17 which is produced by machining.
  • the spacer 9 ensures that the sealing surface 11 of the first line end piece and the sealing surface 17 of the further air conditioning circuit component 5 are approximately parallel. allel are aligned with each other and the force distribution on the sealing ring 14 is as even as possible.
  • the first coupling piece 4 and the further air conditioning circuit component 5 are arranged relative to one another such that the first line end piece 3 is aligned with a bore 18 in the further air conditioning circuit component 5.
  • FIG. 3 shows the connection arrangement 1 in a cut-out enlargement, in which the further air conditioning circuit component 5 is formed by a second coupling piece 20 with a second line end piece 21.
  • the second coupling piece 20 has a bore 21, through which a second line end piece 22 is guided, wherein the connection between the second line end piece 21 and the second coupling piece 20 is formed as a press connection as shown in FIG.
  • the second line end piece 22 has, at its end facing the first line end piece and protruding from the second coupling piece 20, a radially extending sealing surface 23 produced by plastic deformation of the second line end piece 22, whose diameter is greater than the rest of the second line end piece 22.
  • the second coupling piece 20 has, at the end of the bore 21 facing the first line end piece 3, an annular collar 24 facing the first line end piece 22, the annular collar 24 being assigned to the rear side 25 of the radial sealing surface 23 of the second line end piece 22 facing away from the first line end piece 3 is and pressed in the assembled state on this back 25 pressing the radial sealing surface 23 of the second line end piece 22 on the sealing ring 14.
  • the spacer 9 ensures that the sealing surface 11 of the first line end piece and the sealing surface 23 of the second line end piece 22 approximately parallel to aligned with each other and the force distribution on the sealing ring 14 is as even as possible.
  • the first coupling piece 4 and the second coupling piece 20 are arranged to one another such that the first line end piece 3 is aligned with the second line end piece 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Gasket Seals (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

L'invention concerne un dispositif de raccordement (1) pour conduits de réfrigérant (2), notamment dans des installations de climatisation de véhicules fonctionnant au CO2. Ce dispositif comprend un premier élément d'accouplement (4) pouvant être relié à un premier élément terminal de conduit (3), et un autre élément de circuit de climatisation (5), le premier élément d'accouplement (4) et l'élément de circuit de climatisation (5) étant assemblés par une vis, de sorte que le premier élément terminal de conduit (3) et l'élément de circuit de climatisation (5) sont reliés par un alésage (6,18) sur chacun et par des surface d'étanchéité radiales (11,17), entre lesquelles est disposée une bague d'étanchéité (14). Entre le premier élément d'accouplement (4) et l'autre élément de circuit de climatisation (5) est placée une entretoise. Selon l'invention, le premier élément terminal de conduit (3) a une surface d'étanchéité (11) s'étendant de manière radiale et façonnée sans enlèvement de copeaux par déformation plastique de l'élément terminal de conduit. Le premier élément d'accouplement (4) est pourvu d'un élément annulaire (12) qui, lorsqu'il est monté, plaque la surface d'étanchéité (11) contre la bague d'étanchéité (14).
EP06707508A 2005-04-30 2006-03-10 Dispositif de raccordement pour conduits de réfrigérant Withdrawn EP1880135A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005020259A DE102005020259A1 (de) 2005-04-30 2005-04-30 Verbindungsanordnung für Kältemittelleitungen
PCT/EP2006/002203 WO2006117039A1 (fr) 2005-04-30 2006-03-10 Dispositif de raccordement pour conduits de réfrigérant

Publications (1)

Publication Number Publication Date
EP1880135A1 true EP1880135A1 (fr) 2008-01-23

Family

ID=36282986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06707508A Withdrawn EP1880135A1 (fr) 2005-04-30 2006-03-10 Dispositif de raccordement pour conduits de réfrigérant

Country Status (5)

Country Link
US (1) US7712788B2 (fr)
EP (1) EP1880135A1 (fr)
JP (1) JP4885946B2 (fr)
DE (1) DE102005020259A1 (fr)
WO (1) WO2006117039A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2008147990A1 (fr) 2007-05-23 2008-12-04 New Brunswick Scientific Company, Inc. Procédé et appareil de fabrication d'un raccordement fluidique à un conteneur
DE102007047807B4 (de) 2007-11-16 2012-11-08 Visteon Global Technologies, Inc. Verbindungselement zur Verbindung zweier Leitungen
KR20090063992A (ko) * 2007-12-14 2009-06-18 현대자동차주식회사 자동변속기용 오일쿨러 장착유닛
FR2944573B1 (fr) * 2009-04-17 2015-10-23 Valeo Systemes Thermiques Bride de connexion pour composant de circuit de circulation de fluide refrigerant
DE202016100195U1 (de) * 2016-01-15 2016-02-01 Ti Automotive Engineering Centre (Heidelberg) Gmbh Verbindungsanordnung für eine Klimaanlage
DE102016206459B3 (de) * 2016-04-18 2017-10-05 Continental Automotive Gmbh Kombination, umfassend ein Gehäuse und einen Flansch, und Anordnung
US10378686B2 (en) * 2016-07-08 2019-08-13 Hanon Systems Plastic seal fitting
US20200200307A1 (en) * 2018-12-21 2020-06-25 Hanon Systems Metal seal fitting with tight bend technology

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US3336055A (en) * 1964-07-10 1967-08-15 Pall Corp Fluid line connections
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US5174612A (en) * 1991-07-15 1992-12-29 Senior Engineering Investments, B.V. Vibration isolating sealing clamp for conduit structures
DE69220502T2 (de) * 1991-10-25 1998-02-05 Nwd Int Inc Hydraulische anschluszstücke
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US5727304A (en) * 1996-06-19 1998-03-17 Eaton Corporation Conduit fast connection
DE19653908A1 (de) * 1996-12-21 1998-06-25 Daimler Benz Ag Einrichtung zum Anschluß eines Rohrkrümmers
US5779280A (en) * 1997-02-28 1998-07-14 Mark Iv Automotive Aktiebolag Fluid connector
JPH1137074A (ja) * 1997-07-22 1999-02-09 Matsushita Electric Ind Co Ltd 密閉型電動圧縮機
JP3956495B2 (ja) * 1998-07-27 2007-08-08 株式会社デンソー 配管継手およびその製造方法
US6386593B1 (en) * 1999-10-29 2002-05-14 Automotive Fluid Systems, Inc. Dual-plane seal for fluid-tight conduit connection
US6193283B1 (en) * 1999-10-29 2001-02-27 Automotive Fluid Systems, Inc. Conduit and block connection indicator device
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Also Published As

Publication number Publication date
US20080197629A1 (en) 2008-08-21
WO2006117039A1 (fr) 2006-11-09
US7712788B2 (en) 2010-05-11
JP2008540984A (ja) 2008-11-20
DE102005020259A1 (de) 2006-11-09
JP4885946B2 (ja) 2012-02-29

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Inventor name: WERNER, ALEX

Inventor name: WILDERMUTH, ANDREAS

Inventor name: PLISCHKE, WOLFGANG

Inventor name: EISMANN, MIKE

Inventor name: LESSER, KLAUS

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