EP1862043A2 - Boitier pour un appareil electronique et rondelle d'etancheite pour un boitier - Google Patents

Boitier pour un appareil electronique et rondelle d'etancheite pour un boitier

Info

Publication number
EP1862043A2
EP1862043A2 EP06708760A EP06708760A EP1862043A2 EP 1862043 A2 EP1862043 A2 EP 1862043A2 EP 06708760 A EP06708760 A EP 06708760A EP 06708760 A EP06708760 A EP 06708760A EP 1862043 A2 EP1862043 A2 EP 1862043A2
Authority
EP
European Patent Office
Prior art keywords
contact surface
sealing ring
housing
friction
coefficient
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Withdrawn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
EP06708760A
Other languages
German (de)
English (en)
Inventor
Armin Rupp
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.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co 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 Endress and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Publication of EP1862043A2 publication Critical patent/EP1862043A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure

Definitions

  • the present invention relates to a housing for an electronic device, in particular a two-part housing with a screw or plug connection between a first housing part and a second housing part.
  • Such housings are used, for example, in process instrumentation, stainless steel housings being particularly suitable for use in harsh environments, which can be produced, for example, in a deep drawing process. In this case, it proves difficult to provide a reliable seal between the first housing part and the second housing part and to maintain the ability to easily open the housing.
  • the object is achieved by the housing according to the independent claim 1 and the sealing ring according to the independent claim. 8
  • the housing according to the invention comprises:
  • a first housing part which has a first contact surface for a first contact surface of a sealing ring
  • a second housing part which is connectable to the first housing part and has a second abutment surface for a second contact surface of the sealing ring
  • first contact surface of the sealing ring comprises a first material having a first coefficient of friction to the material of the first contact surface
  • the second contact surface has a second coefficient of friction to the material of the second contact surface, wherein the first coefficient of friction is less than the second coefficient of friction
  • the sealing ring according to the invention accordingly comprises a first contact surface for engagement with a first contact surface, wherein the first contact surface comprises a first material having a first coefficient of friction relative to the material of the first contact surface. has bearing surface; and a second contact surface for engagement with a second abutment surface, wherein the second contact surface comprises a second material having a second coefficient of friction with the material of the second abutment surface, and the first friction coefficient is less than the second friction coefficient.
  • the above condition is preferably met even if the surface finish of the material of the first contact surface of the surface texture of the material of the second contact surface is equal, or if the material of the first contact surface is equal to the material of the second contact surface.
  • the first coefficient of friction is smaller than the second coefficient of friction, that when screwing the first housing part with the second housing part, the first contact surface can slide over the first contact surface, while the second contact surface at most negligible relative movements with respect to second contact surface performs.
  • the sealing ring comprises an elastic base body, in particular with an elastomer, for example a silicone polymer or silicone rubber or EPDM, and a partial coating of a material with a lower coefficient of friction, for example a PTFE.
  • the partial coating can be manufactured, for example, as a separate component and then glued or vulcanized to the base body. Similarly, the partial coating can be applied from a liquid or by vapor deposition on the base body. Uncoated areas should be shielded accordingly.
  • the material of the first and / or the second housing part may comprise a metallic material, in particular stainless steel.
  • the connection between the first housing part and the housing part may be, for example, a screw connection or a plug connection, or another type of connection in which the first housing part slides in a contact manner over the first contact surface of the sealing ring.
  • Fig. 1 a detail view of a section through a
  • the housing 1, of which a detail is shown in Fig. 1, comprises a housing body 2 and a housing cover 3, which are releasably connected to each other, for example screwed.
  • the housing body and the housing cover are made of stainless steel in a deep-drawing process, with currently V4A is preferred as a material.
  • a sealing ring 4 is clamped between the housing body 2 and the housing cover 3, a sealing ring 4 is clamped.
  • the sealing ring 4 comprises a main body 5 made of an elastomer, in particular silicone, and a PTFE layer 6, which is applied to the base body vulcanized.
  • the surface of the base body is covered with the PTFE layer, in such a way that the surface of the sealing ring 4 touching the housing cover 3 comprises PTFE, and that the surface of the sealing ring 4 touching the housing body 2 comprises silicone.
  • the described design of the sealing ring causes when screwing the housing cover 3 with the housing body 2 of the housing cover slides over the sealing ring and preferably at most negligible shear forces in the sealing ring 4 enters while the sealing ring barely changed its position with respect to the housing body 2.
  • the sealing effect is achieved in the illustrated embodiment substantially by a radial surface pressure of the sealing ring 4 between the housing cover 3 and the housing body 2.
  • the sealing seat of the housing body 2 comprises a slight radial constriction 8 in the lateral surface of the housing body, which is pressed or necked into the lateral surface, wherein the radial constriction is followed by a frustoconical expansion 7, on which the sealing ring 4 is axially supported in order to prevent axial displacement of the sealing ring 4 on the housing body when screwing the housing cover to the housing body.
  • the frusto-conical expansion has, for example, an opening angle to the housing axis of not less than 30 ° and not more than 45 °.
  • the main body 5 of the sealing ring 4 has a contour which is matched to the seal seat.
  • the main body 5 has a sealing portion 10 and an adjoining support portion 9, wherein the support portion 9 at least partially abuts the frusto-conical expansion 7, and the sealing portion 10 at least partially at the radial constriction. 8
  • the housing cover 3 has a complementary contour to the housing body 2 or to the sealing ring 4.
  • the housing cover has a compression portion 11, which is positioned axially so that it is axially aligned with the radial Einschürung 8 of the housing body 2 and with the sealing portion 10 of the sealing ring 4, when the housing cover is screwed to the housing body.
  • the radial distance of Kompressionsabshnitts 11 of the radial constriction 8 is matched to the sealing ring 4, that the radial surface pressure of the sealing ring 4 ensures a sufficient sealing function.
  • the housing cover further comprises a frusto-conical cover portion 12, which adjoins the compression portion 11 and the support portion 9 of the sealing ring 4 covers.
  • the inner surface of the cover portion 12 is preferably on the support portion 9 in order to protect this on the one hand and on the other hand to avoid gaps or dead spaces in which impurities can accumulate.
  • On a surface pressure to achieve a sealing effect is in the area of the support may be omitted if necessary. This can possibly be an axial component of the surface pressure can be avoided, which could favor unintentional opening of the housing. This is particularly relevant when the closure thread 13 between the housing body 2 and the housing cover 3 has a large pitch, as is common in deep-drawn housings.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Gasket Seals (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un boîtier (1) présentant une première partie de boîtier (3), pourvue d'une première surface de butée (11) pour une première surface de contact (6) d'une rondelle d'étanchéité (4), ainsi qu'une seconde partie de boîtier (2), pouvant être vissée avec la première partie de boîtier (3) et pourvue d'une seconde surface de butée (8) pour une seconde surface de contact (5) de la rondelle d'étanchéité. Selon la présente invention, la première surface de contact de la rondelle d'étanchéité est constituée d'une première matière présentant un premier coefficient de frottement par rapport à la matière de la première surface de butée et la seconde surface de contact de la rondelle d'étanchéité est constituée d'une seconde matière présentant un second coefficient de frottement par rapport à la matière de la seconde surface de butée, le premier coefficient de frottement étant inférieur au second coefficient de frottement.
EP06708760A 2005-03-24 2006-03-14 Boitier pour un appareil electronique et rondelle d'etancheite pour un boitier Withdrawn EP1862043A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005014297A DE102005014297A1 (de) 2005-03-24 2005-03-24 Gehäuse für ein elektronisches Gerät und Dichtring für ein Gehäuse
PCT/EP2006/060711 WO2006100197A2 (fr) 2005-03-24 2006-03-14 Boitier pour un appareil electronique et rondelle d'etancheite pour un boitier

Publications (1)

Publication Number Publication Date
EP1862043A2 true EP1862043A2 (fr) 2007-12-05

Family

ID=36998789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06708760A Withdrawn EP1862043A2 (fr) 2005-03-24 2006-03-14 Boitier pour un appareil electronique et rondelle d'etancheite pour un boitier

Country Status (4)

Country Link
US (1) US8218296B2 (fr)
EP (1) EP1862043A2 (fr)
DE (1) DE102005014297A1 (fr)
WO (1) WO2006100197A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0818604A2 (pt) 2007-10-09 2015-04-22 Folgers Cooffee Company Sistema de empacotamento com uma sobretampa
JP5355578B2 (ja) * 2008-09-18 2013-11-27 日本バルカー工業株式会社 シールプレートおよびシールプレートに用いられるシール部材ならびにこれらの製造方法
US9845877B2 (en) * 2014-07-25 2017-12-19 Nippon Pillar Packing Co., Ltd. Method of producing gasket and gasket
DE102016213899A1 (de) * 2016-07-28 2018-02-01 Mahle International Gmbh Dichtungselement
CN107046785B (zh) * 2017-02-22 2020-01-10 Oppo广东移动通信有限公司 密封组件的制作方法及终端
JP7503990B2 (ja) * 2020-10-06 2024-06-21 タイコエレクトロニクスジャパン合同会社 シール構造体

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE223876C (fr)
AT223876B (de) * 1959-04-06 1962-10-25 Saurer Ag Adolph Abdichtung für hohe Drücke und hohe Temperaturen, insbesondere Zylinderkopfdichtung für Brennkraftmaschinen
US3286868A (en) 1965-10-06 1966-11-22 Owens Illinois Inc Container and closure for same
DE3925269A1 (de) * 1989-07-31 1991-02-07 Vickers Systems Gmbh Axialdichtung
DE9206130U1 (de) * 1992-05-07 1992-07-16 Standard Elektrik Lorenz Ag, 7000 Stuttgart HF-dichtes Gehäuse
DE19528379C1 (de) * 1995-08-02 1996-10-02 Ford Werke Ag Statische Dichtung für ein Gehäuse an einer Brennkraftmaschine, insbesondere für Verschlußdeckel an Kurbelwellen- und Getriebegehäusen
US5584411A (en) * 1995-11-21 1996-12-17 Chemical Engineering Corporation Tank assembly and method for water treatment
US6296907B1 (en) 1996-05-31 2001-10-02 Wacker Silicones Corporation Coating for silicone gaskets to reduce coefficient of friction
DE59609023D1 (de) * 1996-10-18 2002-05-08 Endress Hauser Gmbh Co Gehäuse für industrielle Anwendungen
GB9802761D0 (en) * 1998-02-11 1998-04-08 Raychem Sa Nv Sealing arrangement
DE19851238A1 (de) * 1998-11-06 2000-05-11 Bayerische Motoren Werke Ag Bauteil mit einem elastischen Oberflächenbereich
EP1099892A1 (fr) * 1999-11-09 2001-05-16 Witzenmann GmbH Metallschlauch-Fabrik Pforzheim Dispositvf d'etanchéite entre deux éléments de sections axis-symétriques, co axiales entre - elles
US6360908B1 (en) * 1999-11-19 2002-03-26 Rieke Corporation Tamper-evident drum closure overcap
US20040041347A1 (en) * 2000-11-30 2004-03-04 Beach Jefferey Kurtis Permanently lubricated gasket
DE10339718A1 (de) * 2003-08-28 2005-04-07 Veritas Ag Dichtelement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006100197A2 *

Also Published As

Publication number Publication date
US20090109607A1 (en) 2009-04-30
US8218296B2 (en) 2012-07-10
WO2006100197A2 (fr) 2006-09-28
DE102005014297A1 (de) 2006-10-05
WO2006100197A3 (fr) 2007-07-26

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