EP1232539A1 - Element de contact court entre des pieces d'un boitier - Google Patents

Element de contact court entre des pieces d'un boitier

Info

Publication number
EP1232539A1
EP1232539A1 EP99959336A EP99959336A EP1232539A1 EP 1232539 A1 EP1232539 A1 EP 1232539A1 EP 99959336 A EP99959336 A EP 99959336A EP 99959336 A EP99959336 A EP 99959336A EP 1232539 A1 EP1232539 A1 EP 1232539A1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
contact element
section
sheet
element according
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Withdrawn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
EP99959336A
Other languages
German (de)
English (en)
Inventor
Hermann Stahl
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.)
Hermann Stahl GmbH
Original Assignee
Hermann Stahl GmbH
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 Hermann Stahl GmbH filed Critical Hermann Stahl GmbH
Publication of EP1232539A1 publication Critical patent/EP1232539A1/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Withdrawn legal-status Critical Current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
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/0015—Gaskets or seals
    • H05K9/0016—Gaskets or seals having a spring contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

Definitions

  • the invention relates to a contact element between housing parts according to the preamble of claim 1.
  • Such a contact element is known from DE 195 07 846 Cl and has good spring properties which ensure reliable electrical contact between the housing parts in order to achieve electromagnetic shielding.
  • Such contact elements can be formed in the manufacture of the housing parts without great manufacturing effort.
  • the invention has for its object to develop a contact element of the generic type in such a way that weakening of the housing side wall is largely avoided with sufficient resilient properties.
  • the foot of the sheet metal tab, with which it connects to the edge of the recess, is wider than the sheet metal tab itself, the section of the cold deformation extending beyond the base and the sheet metal edge into the sheet itself, so that a continuous transition of the cold deformed section out of the sheet metal into the sheet metal tab.
  • the constructive expansion of the deformation section beyond the foot into the sheet metal enables great spring properties even in the case of short sheet metal tabs, without the risk of permanent deformation due to excessive spring travel.
  • the formation of the deformed section into the sheet metal therefore enables short free lengths of the sheet metal tabs; Accordingly, the recesses within which the sheet metal straps are located can be made very short in the longitudinal direction of the sheet metal straps.
  • sheet metal brackets of at least 15 to 16 mm are necessary in order to provide sufficient spring properties
  • sheet metal brackets with minimum lengths of approximately 8 mm and sufficient spring properties can be produced according to the design according to the invention.
  • minimum lengths of 5 to 6 mm are possible, so that the necessary window-like recesses can be kept very small. A weakening of the housing side wall is thereby largely avoided.
  • the sheet metal tab preferably adjoins the sheet metal edge via a foot section widening in the direction of the sheet metal edge, as a result of which sufficient material is provided in this area, which is given resilient properties by cold deformation and ensures the necessary spring elasticity of the contact element.
  • the foot section preferably has an approximately trapezoidal basic shape in plan view, the larger base side of such a trapezoidal basic shape lying at the height of the sheet metal edge.
  • the foot section is deformed over its entire width; the end section of the deformation section running out in the sheet can be deformed or formed to the same width as the foot. det be; the end section of the deformation section is preferably provided in the sheet metal wider than the foot.
  • the end section of the deformation section running out in the sheet metal expediently has an extension measured in the direction of the longitudinal central axis of the sheet metal tab, which corresponds to approximately 20 to 50%, in particular 35%, of the free length of the deformation section.
  • 1 is a plan view of the sheet metal of a housing part
  • FIG. 4 shows a top view according to FIG. 2 of the deformed sheet metal tab
  • FIG. 5 shows a section along the line V-V in Fig. 4,
  • FIG. 6 shows a section through two housing parts which are electrically conductively connected by means of the contact element according to the invention
  • FIG. 7 shows a section through a further exemplary embodiment of a contact element in a representation according to FIG. 5, 3 shows a top view of the contact element according to FIG. 7,
  • FIG. 10 is a plan view of the contact element of FIG .. 9
  • a plan view of a housing part 1 is shown schematically, which has, for example, two side walls 2 which are to be erected approximately at right angles about folding lines 3.
  • Contact elements 10 are arranged in a side wall 2 and are formed from sheet metal tabs 11 formed in one piece with the sheet metal 4 of the housing part 1.
  • each sheet metal tab 11 lies in a window-like recess 12 or notch, which is approximately rectangular in plan view.
  • the sheet metal bracket 11 connects with its foot 13 to the sheet metal edge 14, which is formed by the narrow side of the rectangular recess 12.
  • a contact surface 15 which is provided at the free end 16 of the sheet metal tab 11 and is at a distance from the opposite narrow side of the recess.
  • the foot 13 at the height of the sheet edge 14 has a width B which is greater than the width b of the sheet metal bracket 11 measured transversely to the longitudinal central axis 5.
  • the sheet metal bracket 11 itself closes in the direction of the Sheet metal edge 14 widening foot section 17 of width a to the sheet metal edge 14, this foot section 17 in plan view according to FIG. 2 having an approximately trapezoidal basic shape.
  • the side edges 18 of the foot section 17 are rounded; it can - as shown in Fig. 10 - appropriate be to make the edges 18 straight in accordance with a trapezoidal shape.
  • the sheet metal tab 11 is - as shown in FIG. 3 - deformed between dies 6 and 7, whereby - as shown in FIG. 5 - the sheet metal tab 11 in the section 20 between the sheet metal edge 14 and the contact surface 15 in its thickness d compared to the thickness D. of the sheet 4 is reduced by cold working.
  • the section 20 of the cold deformation extends beyond the base 13 and the sheet edge 14 into the sheet 4 itself.
  • the end section 21 of the deformation section 20 running out in the sheet 4 can be made from both side surfaces 9 by deformation of the sheet 4, one with respect to the symmetrical deformation of the central plane 19 can be expedient.
  • the free end 16 is formed into a contact body 22, which in the exemplary embodiment according to FIGS. 3 to 5 takes place by bending into a semicircular basic shape.
  • the structural design is provided such that the deformation section 20 ends in front of the contact body 22, in particular runs out in front of the contact body 22.
  • the sheet metal tab 11 thus has the material thickness D of the sheet 4 in the region of the free end 16; In the deformation section 20 adjoining the contact body 22, the material thickness is reduced to the thickness d by cold deformation. In the area of the foot section 17, the thickness increases again - advantageously even before the sheet edge 14 - and passes over the end section 21 of the deformation section 20 again into the material thickness D of the sheet 4.
  • the one flat side 23 of the deformed sheet metal bracket 11 is essentially flat; 5 this is that of the contact Surface 15 facing away from the flat side 23 of the sheet metal tab 11.
  • the other flat side 24 facing the contact surface 15 in the exemplary embodiment according to FIG. 5 is divided into a surface 25 in the region of the deformation section 20 and a surface 26 in the region of the end section 21 lying in the region of the plate 4 , The surfaces 25 and 26 lie at an angle 27 to one another which is less than 180 ′′.
  • the section 20 of the cold deformation extends beyond the base 13 and the sheet edge 14 into the sheet 4 itself.
  • the base section 17 is deformed over its entire width B; it may be expedient that the end section 21 of the deformation section 20 running out in the sheet 4 is formed to be the same or wider than the width B of the foot 13 at the level of the sheet edge 14.
  • the sheet metal tab is of the same width b.
  • the deformation section 20 lies at an angle to the central plane 19 of the sheet metal.
  • the flat side 23 has an angle with the central plane 19 of the sheet metal.
  • the position of the deformation section 20 is selected such that it is angled in the direction of the side wall 30 of the housing part 31 to be contacted.
  • the contact surface 15 lying in the direction of the longitudinal center axis 5 at a distance from the foot section 17 is in an electrically conductive manner against the other housing part 31, namely on its side wall 30.
  • the contact body 22 is pushed back in the arrow direction 28 into the window-like recess 12, the Deformation section 20 yields resiliently into its end section 21 without permanently deforming.
  • the foot 13 loaded during the resilient pushing back of the sheet metal bracket 11 undergoes no permanent deformation, since due to its greater width and the deformation beyond the foot 13 into the material thickness D of the sheet 4, sufficient elasticity is created.
  • the length 1 of the recess measured in the direction of the longitudinal central axis 5 can be kept small, so that the weakening of the sheet itself is negligible.
  • contact elements 10 with a free length L can be created which, with sufficient spring properties, have a length of only about 8 mm.
  • the length 1 of the recess is then only 10 mm; minimal lengths L of the sheet metal tabs 11 of approximately 5 to 6 mm are possible with sufficient spring properties.
  • the basic structure of the contact element corresponds to that of FIGS. 2 to 6, which is why the same reference numerals are used for the same parts.
  • the end section 21 of the deformation section 20 is deformed only from the side surface 9 of the metal sheet 4, the end section 21 and the deformation section 20 having a common, flat flat side 23.
  • the end section 21 of the deformation section - as shown in FIG. 8 - is designed with a width V that is significantly larger than the width B of the foot section 17 measured at the height of the sheet edge 14.
  • the side edges 18 of the foot section 17 are designed with a radius of curvature, wherein the foot section 17 has only a small length a measured in the direction of the longitudinal central axis 5.
  • the extension e, measured in the direction of the longitudinal central axis 5, of the end section 21 of the deformation Section 20 into the material of the sheet metal 4 corresponds in the exemplary embodiment according to FIGS. 7 and 8 to approximately 45 to 50% of the free length f of the deformation section 20 in the rectangular recess 11.
  • the extent e is End sections 21 in the sheet 4 approximately 35% of the free length f of the deformation section 20 in the recess 11.
  • the free end 16 of the sheet metal bracket 11 is angled approximately at right angles and projects through the recess 11, the free end 16 projecting by a dimension c beyond the side face 9 of the sheet 4.
  • the free end face 29 forms the contact surface.
  • the measured extension e of the end section 21 into the material of the sheet 4 is approximately 40% of the free length f of the deformation section 20 in the recess 11.
  • the foot section is 17 formed such that it has the exact shape of an isosceles trapezoid in plan view.
  • the straight side edges 18 form the legs, while the smaller base side corresponds to the width b of the sheet metal bracket 11 and the larger base side at the height of the sheet edge 14 has the length B of the foot 13.
  • the end section 21 of the deformation section 20 has a width in the material of the sheet 4 which corresponds to the width B of the foot 13.
  • the free end 16 is angled through the cutout 11 in accordance with the exemplary embodiment according to FIG. 7, but an inclined position relative to the center plane 19 of the sheet metal is executed. An edge 39 of the free end face 29 thereby forms the contact surface of the contact element 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention concerne un élément de contact entre des pièces (1, 31) d'un boîtier, au moins l'une de ces pièces (1) étant formée par une feuille métallique (4), cependant qu'une languette (11) réalisée d'une seule pièce avec cette feuille (4) forme l'élément de contact élastique (10), la languette (11) se raccordant par sa base (13), à une arête (14) de la feuille et s'appliquant de façon électriquement conductrice, par une surface de contact (15) située à distance de la base (13), sur l'autre pièce (31) du boîtier, la languette (11) étant réduite en son épaisseur (d), par déformation à froid, par rapport à l'épaisseur (D) de la feuille (4), dans une section (20) comprise entre l'arête (14) et la surface de contact (15). L'invention a pour but de garantir, même pour des longueurs minimales de la languette, des propriétés d'élasticité suffisantes pour le maintien sûr de contacts électriques. A cet effet, l'invention est caractérisée en ce que la base (13) est réalisée, au niveau de l'arête (14) de la feuille, de façon à présenter une plus grande largeur que la largeur transversale (b) de la languette (11) elle-même, et en ce que la section (20) déformée à froid s'étend au-delà de la base (13) et de l'arête (14) dans la feuille métallique (4) elle-même.
EP99959336A 1999-11-25 1999-11-25 Element de contact court entre des pieces d'un boitier Withdrawn EP1232539A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1999/009130 WO2001039331A1 (fr) 1999-11-25 1999-11-25 Element de contact court entre des pieces d'un boitier

Publications (1)

Publication Number Publication Date
EP1232539A1 true EP1232539A1 (fr) 2002-08-21

Family

ID=8167509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99959336A Withdrawn EP1232539A1 (fr) 1999-11-25 1999-11-25 Element de contact court entre des pieces d'un boitier

Country Status (3)

Country Link
US (1) US6814592B1 (fr)
EP (1) EP1232539A1 (fr)
WO (1) WO2001039331A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004087753A (ja) * 2002-08-27 2004-03-18 Sumitomo Wiring Syst Ltd 電子部品のガタつき防止構造
US7029331B1 (en) * 2005-02-18 2006-04-18 Cheng Uei Precision Industry Co., Ltd. Shield and connector with the shield
US20070126111A1 (en) * 2005-05-26 2007-06-07 Uri Mirsky Microelectronic packaging and components
DE102008060808B4 (de) 2008-12-01 2011-03-03 Obo Bettermann Gmbh & Co. Kg Bodeneinbaukassette für elektrische Installationsgeräte
JP5149320B2 (ja) * 2010-03-17 2013-02-20 株式会社ソニー・コンピュータエンタテインメント 電子機器
US9611652B2 (en) 2011-02-25 2017-04-04 Dustin M. M. Haddock Mounting device for building surfaces having elongated mounting slot
WO2013101597A1 (fr) 2011-12-29 2013-07-04 Haddock Dustin M M Dispositif de montage pour panneaux à joints debout
AU2017302659B2 (en) 2016-07-29 2020-07-16 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
WO2018081722A1 (fr) * 2016-10-31 2018-05-03 Haddock Dustin M M Pince de liaison électrique de panneaux métalliques
AU2018348090B2 (en) 2017-10-09 2021-11-18 Rmh Tech Llc Rail assembly with invertible side-mount adapter for direct and indirect mounting applications
US10903785B2 (en) 2018-03-21 2021-01-26 Rmh Tech Llc PV module mounting assembly with clamp/standoff arrangement
AU2019397167B2 (en) 2018-12-14 2023-04-06 Rmh Tech Llc Mounting device for nail strip panels
EP4121610A4 (fr) 2020-03-16 2024-03-27 RMH Tech LLC Dispositif de montage d'un toit métallique
US11041310B1 (en) 2020-03-17 2021-06-22 Rmh Tech Llc Mounting device for controlling uplift of a metal roof

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
JP2501638Y2 (ja) * 1991-11-25 1996-06-19 船井電機株式会社 プリント基板装着用シ―ルド板
DE9407499U1 (de) * 1994-05-05 1995-09-07 Itt Composants Et Instruments, Dole Cedex Elektrisches Kontaktelement
US5478260A (en) * 1994-07-29 1995-12-26 The Whitaker Corporation Grounding for electrical connectors
DE19507846C1 (de) * 1995-03-07 1996-08-08 Hermann Stahl Kontaktelement zwischen Gehäuseteilen
DE19648205C1 (de) * 1996-11-21 1998-04-02 Hermann Stahl Gmbh Trägerplatte für eine Platine mit elektronischen Bauelementen
GB2331404B (en) * 1997-11-12 2002-05-22 Vero Electronics Ltd Electrical contacts for housings
US6390320B2 (en) * 1998-04-29 2002-05-21 Cisco Technology, Inc. Easily installable and removable electro-magnetic interference shielding faceplate
DE29906262U1 (de) * 1999-04-08 1999-07-15 Hermann Stahl GmbH, 71723 Großbottwar Federelement
TW507949U (en) * 2001-04-27 2002-10-21 Hon Hai Prec Ind Co Ltd Electrical connector

Non-Patent Citations (1)

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Title
See references of WO0139331A1 *

Also Published As

Publication number Publication date
US6814592B1 (en) 2004-11-09
WO2001039331A1 (fr) 2001-05-31

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