EP0545751B1 - Abschirmungsfederstreifen für elektrische Verbinder und damit ausgestatteter Verbinder - Google Patents

Abschirmungsfederstreifen für elektrische Verbinder und damit ausgestatteter Verbinder Download PDF

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Publication number
EP0545751B1
EP0545751B1 EP92403029A EP92403029A EP0545751B1 EP 0545751 B1 EP0545751 B1 EP 0545751B1 EP 92403029 A EP92403029 A EP 92403029A EP 92403029 A EP92403029 A EP 92403029A EP 0545751 B1 EP0545751 B1 EP 0545751B1
Authority
EP
European Patent Office
Prior art keywords
contact blades
contact
blades
band according
groove
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.)
Expired - Lifetime
Application number
EP92403029A
Other languages
English (en)
French (fr)
Other versions
EP0545751A1 (de
Inventor
Dominique Serizay
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.)
FCI France SA
Original Assignee
Framatome Connectors France SA
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 Framatome Connectors France SA filed Critical Framatome Connectors France SA
Publication of EP0545751A1 publication Critical patent/EP0545751A1/de
Application granted granted Critical
Publication of EP0545751B1 publication Critical patent/EP0545751B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector

Definitions

  • the invention relates to shielding straps intended to equip connector housings to ensure electrical continuity between the male and female elements in order to protect the electrical terminals and the signals which they propagate from external electromagnetic interference.
  • the male and female housings of the electrical connectors are coupled according to the male element / female element principle. They are made of metal or other composite material, conductive of electricity, and surround the dielectric linings carrying the electrical terminals which are themselves set back from the interface of the housings so that the latter mate and self-position even before the terminals are connected.
  • the shielding bracelet can, for its part, be produced according to different designs but is, most often, constituted by a succession of contact blades, elastically deformable, positioned in an annular groove formed on the outer surface of the body in projection of the male element, said blades being fixed in this groove by a flexible or rigid connecting means.
  • the contact blades consist of spring metal parts having the general shape of a flattened V and open towards the female element, these parts being retained in the groove of the element by one or several elastic bracelets applying the bottom of the V in the throat, while freeing its branches, the ends of which are bent outwards and, before connection with the female element, protrude by relative to the periphery of the body in projection of the male element.
  • the contact blades consist of a strip of spring metal slightly curved at its center to form a flared cup, the two branches of which are folded 180 ° in a hairpin, to define two contact wings projecting from the periphery of the body in projection of the male element.
  • These elastic blades are connected together by an uncut portion of the metal of the initial strip and are fixed in the bottom of the groove by a plate resting on a shoulder formed at the entrance of said groove, which plate is fixed to the band. supporting contact blades by crimping, stapling, soldering, gluing.
  • the known armor bracelets and in particular those described above call upon a multitude of separate and independent parts (contact blades, flexible links, crimped or stapled plate, etc.) and their positioning on the body of the connection box is particularly laborious especially when it is necessary to install links on independent contact blades difficult to position individually on their respective seats or that it is necessary to crimp, staple or glue the fixing means in a reputed place moreover, hardly accessible.
  • the object of the invention is to remedy these drawbacks and to this end relates to a shielding strap for electrical connectors of the type comprising spring steel contact blades positioned and fixed in an annular seat, formed on one of the two housings of connection, by an elastic fixing means, bracelet, characterized in that the contact blades have essentially the form of open loops, elastically deformable, at least one of the ends of this loop being able to move freely relative to the other and the means for fixing the contact blades consisting of at least one flexible annular link housed inside the loops, so that all the contact blades are interconnected by this link and form with the latter a unitary assembly easily manipulable.
  • the contact blades have the form of open hairpins whose ends can freely move relative to one another.
  • the contact blades consist of a rectilinear core, provided with a positioning fold, for example a triangular fold whose tip is directed in the direction opposite the bottom of the groove constituting the seat of the contact blades.
  • this core is extended on one side by a curved main branch, the convexity of which is turned in the same direction as the positioning fold and on the other side by a shorter branch folded at substantially 90 °, the ends of the two branches being spaced from one another.
  • the main object of the invention lies in the new design of a shielding bracelet forming a unitary assembly and which can be easily placed on or removed from a connection box, without the need to disassemble itself of said housing.
  • the male and female connection boxes will be respectively designated “male element” and “element female "although in reality the male element may contain the contact sockets and the female element the pins to be introduced into these sockets.
  • the male element consists schematically of a flange 1 on one of the faces of which protrudes at least one body in projection 2 intended to be embedded by simple sliding in the socket that constitutes the female element 3 (figure 5).
  • the male element comprises two bodies in projection, each being provided with an annular groove 4 intended to receive the shielding bracelet generally designated by the reference 5.
  • Each body in projection 2 comprises an annular chamfer 21 favoring its introduction into the female element 3 which also includes an introduction ramp 31 promoting the guiding and coupling of the two male and female elements.
  • the purpose of the shielding bracelet 5 is to promote electrical continuity between the two male and female elements in order to pick up external electromagnetic interference.
  • These male and female elements are obviously made of an electrically conductive material, for example a metal or a charged synthetic material and are usually connected to ground.
  • the shielding bracelet consists of a plurality of contact blades 6 ( Figures 3 and 4) held assembled and positioned in the bottom of the grooves 4 by an elastic link 7 ( Figures 5 and 7).
  • Each contact blade is made of an elastically deformable, electrically conductive material, for example made of spring metal and is shaped as an open loop, the two ends 61 and 62 of this loop being able to move freely one relative to the 'other. More specifically, such as visible in FIGS. 3 and 4, the contact blade comprises a main core 63, essentially rectilinear (intended to come to marry the bottom of the groove 4 of the male element), each of the ends of which is folded back to form two asymmetrical branches 64 and 65, the longest branch 64 being curved and the convexity of this branch being directed in the direction opposite to the bottom of the groove 4 serving as a seat for the contact blades.
  • the contact blade comprises a main core 63, essentially rectilinear (intended to come to marry the bottom of the groove 4 of the male element), each of the ends of which is folded back to form two asymmetrical branches 64 and 65, the longest branch 64 being curved and the convexity of this branch being directed in the direction opposite to the bottom of
  • the curved part of this branch 64 is extended by a rectilinear portion 66 forming an acute angle with the main core 63.
  • the shortest branch 65 is, in turn, bent at 90 ° and preferably by a substantially greater angle at 90 ° and is therefore oriented in a plane substantially perpendicular to the main core 63, its end 61 being spaced from the end 62 of the branch 64.
  • the central core 63 has a transverse fold 67 which for example takes the form of a triangle, the point 68 of which is directed upwards, that is to say in the direction of the convex part 69 of the loop.
  • This fold which extends over the entire width of the contact blade cooperates with a groove of complementary shape 71 formed on the internal face of the flexible bracelet 7 (FIG. 7) which, here, is of polygonal section.
  • the contact blades 6 are assembled, or more precisely joined together by the elastic bracelet 7, (FIGS. 1 and 5), said bracelet being housed inside the loops constituting the contact blades so as to form a bonding agent. between the different blades.
  • the bracelet 7 is preferably made of an elastically extensible material giving it a radial elasticity so that it can be engaged in the annular seat that constitutes the groove 4 by simple stretching and that it takes its place and self-positions in throat 4 by elastic return.
  • the bracelet 7 is in the form of a closed continuous ring housed inside the contact blades 6, before their conformation in open loop or inserted later using the elasticity specific to the metal which allows a certain deformation without harming the conformation of the loops, the latter resuming their initial shape, after passage of the elastic strap, by simple spring effect.
  • the contact blades 6 are assembled to the bracelet 7 by embedding their positioning fold 67 in the corresponding groove 71 of the connecting bracelet and are positioned and locked in the groove 4 by this bracelet, the width of the contact blades being substantially equal to that of said gorge.
  • the bracelet has (see fig. 8) wider parts 71 at the corners of the case, which facilitates positioning.
  • the wider parts 71 which do not carry contact blades 6, are substantially more rigid than the rest of the elastic link and are positioned at the rounded angles of the corresponding groove 4.
  • the width of these wider parts 71 is for example substantially equal to the length of the contact blades 6.
  • the contact blades have the shape illustrated in FIG. 3, the end 62 of the main branch 64 being located at a distance from the main core 63, pressed into the bottom of the groove 4.
  • the convex part 69 of the contact blades meets the annular chamfer 31 of the female element and the branch 64 disappears gradually as the two male and female elements are introduced one into the other, the convex part of the contact blade constituting the support zone, sliding on the ramp which constitutes the introduction chamfer 31.
  • FIG. 4 shows in solid lines the position of the branch 64 after deformation, that is to say after introduction of the male element into the female element while the line in dashed lines illustrates its original position before deformation as illustrated in FIG. 3. It is observed that the end 62 of the rectilinear portion 66 of the main branch 64 has slid in the direction of the main core 63, relative to the shorter branch 65 which has not undergone any deformation. At the end of introduction, this end 62 is moreover not in contact with the core 63, which makes it possible to avoid additional forces increasing the forces during the introduction of the housing.
  • FIG. 6 shows two contact blades 6 located in the same alignment and self-positioned by their fold 67 embedded in the groove 71 of the flexible bracelet 7.
  • the shape of the projected body 2 of the male element can vary and be, as illustrated in FIG. 2, square or rectangular.
  • this body can be circular without detracting from the concept of the invention and in this case it will suffice to use an elastic bracelet of a shape and dimension suitable for those of the groove carried by the element male.
  • the shielding strap according to the invention thus allows self-positioning of the contact blades on the flexible connecting strap in order to form a unitary unit that can easily be manipulated, also coming to self-position in the corresponding groove of the connection box without making call for subsequent stapling, gluing, crimping or soldering operations.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Multi-Conductor Connections (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Claims (10)

  1. Abschirmungsring für elektrische Verbinder, der Kontaktplättchen aus Federmetall aufweist, die durch ein federndes Befestigungsmittel in einem ringförmigen Sitz angeordnet und befestigt sind, welcher an mindestens einem der beiden Verbindungsgehäuse ausgeführt ist,
    dadurch gekennzeichnet, daß die Kontaktplättchen (6) im wesentlichen die Form einer elastisch verformbaren, offenen Schleife haben, deren eines Ende (62) zumindest sich frei gegenüber dem anderen Ende (61) bewegen kann, wobei das Befestigungsmittel (7) der Kontaktplättchen (5) aus mindestens einer ringförmigen, biegsamen Verbindung besteht, die in den Schleifen sitzt.
  2. Abschirmungsring nach Anspruch 1,
    dadurch gekennzeichnet, daß die Kontaktplättchen (6) die Form offener Haarnadeln haben, deren Enden (61, 62) sich frei zueinander bewegen können.
  3. Abschirmungsring nach den Ansprüchen 1 und 2,
    dadurch gekennzeichnet, daß die Kontaktplättchen (6) aus einem geradlinigen Steg (63) bestehen, der mit einem Positionierknick (67) versehen ist, dessen Spitze in die vom Grund der den Sitz der Kontaktplättchen bildenden Auskehlung (4) entgegengesetzte Richtung weist.
  4. Abschirmungsring nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß der geradlinige Steg (63) sich an einer Seite in einen gebogenen Hauptschenkel (64), dessen Wölbung (69) in die gleiche Richtung weist wie der Positionierknick, und an der anderen Seite in einen kürzeren Schenkel (65), der im wesentlichen um 90° umgebogen ist, fortsetzt, wobei die Enden (61, 62) der beiden Schenkel (64, 65) voneinander beabstandet sind.
  5. Abschirmungsring nach einem der Ansprüche 3 oder 4,
    dadurch gekennzeichnet, daß die Verbindung (7), die die Kontaktplättchen (6) vereint, aus einem Ring besteht, der eine geschlossene Endlosschleife bildet, deren Basis, die sich in Kontakt mit dem Hauptsteg (63) des Kontaktplättchens befindet, eine umlaufende Auskehlung (71) aufweist, die die komplementäre Form zu dem Positionierknick der Kontaktplättchen hat.
  6. Abschirmungsring nach Anspruch 4,
    dadurch gekennzeichnet, daß der gewölbte Teil (69) des Schenkels (64) der Plättchen (6) die Andruck- und Kontaktstelle der genannten, unter elastischer Spannung angebrachten Plättchen bildet.
  7. Abschirmungsring nach Anspruch 3,
    dadurch gekennzeichnet, daß die Kontaktplättchen in exakten Abständen über den gesamten Umkreis des Verbindungsendlosrings (7) angeordnet sind, wobei dieser sich in der Auskehlung (4) des Steckelements mittels einfacher radialer Elastizität selbst festsetzt.
  8. Abschirmungsring nach Anspruch 7,
    dadurch gekennzeichnet, daß der Ring (7) an den Ecken des Gehäuses breitere Abschnitte (71) aufweist.
  9. Abschirmungsring nach Anspruch 1,
    dadurch gekennzeichnet, daß die Breite der Kontaktplättchen (6) gleich der Breite der Auskehlung (4) ist, die ihnen als Sitz dient, wobei der gewölbte Teil (69) des Schenkels (64) der Plättchen über den Umkreis des hervorstehenden Körpers (2) des Steckelements hinausragt.
  10. Elektrischer Verbinder, der mit einem Abschirmungsring gemäß einem der Ansprüche 1 bis 9 ausgerüstet ist.
EP92403029A 1991-11-29 1992-11-10 Abschirmungsfederstreifen für elektrische Verbinder und damit ausgestatteter Verbinder Expired - Lifetime EP0545751B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9114796A FR2684494B1 (fr) 1991-11-29 1991-11-29 Bracelet de blindage pour connecteurs electriques, et connecteurs equipes d'un tel bracelet.
FR9114796 1991-11-29

Publications (2)

Publication Number Publication Date
EP0545751A1 EP0545751A1 (de) 1993-06-09
EP0545751B1 true EP0545751B1 (de) 1995-10-11

Family

ID=9419496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403029A Expired - Lifetime EP0545751B1 (de) 1991-11-29 1992-11-10 Abschirmungsfederstreifen für elektrische Verbinder und damit ausgestatteter Verbinder

Country Status (7)

Country Link
US (1) US5445542A (de)
EP (1) EP0545751B1 (de)
AT (1) ATE129100T1 (de)
CA (1) CA2083973A1 (de)
DE (1) DE69205401T2 (de)
ES (1) ES2079160T3 (de)
FR (1) FR2684494B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5647765A (en) * 1995-09-12 1997-07-15 Regal Electronics, Inc. Shielded connector with conductive gasket interface
US5766041A (en) * 1996-05-31 1998-06-16 The Whitaker Corporation Shield member for panel mount connector
DE29701838U1 (de) * 1997-02-03 1998-08-27 Siemens AG, 80333 München Elektrisches Gerät mit einer Schirmanbindung
EP2115820B1 (de) * 2007-01-31 2015-09-30 Multi-Holding AG Kontaktelement sowie anwendung eines solchen kontaktelements in einer steckverbindung
US7704097B1 (en) * 2009-02-17 2010-04-27 Tyco Electronics Corporation Connector assembly having an electromagnetic seal element
KR101779454B1 (ko) * 2017-03-15 2017-09-18 주식회사 기가레인 연결 커넥터 및 이를 이용한 블라인드 메이팅 커넥터
US20200274300A1 (en) * 2019-02-27 2020-08-27 Te Connectivity Corporation High speed connector with moldable conductors
CN110581419A (zh) * 2019-09-24 2019-12-17 成都凯迪飞研科技有限责任公司 航空电缆连接器后附件高可靠紧固装置
RU2754091C1 (ru) * 2020-12-02 2021-08-26 Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия им. Адмирала Флота Советского Союза Н.Г. Кузнецова" Способ увеличения контактного нажатия и площади контактирующей поверхности контактных элементов разъемного электрического соединения пропорционально проходящему по нему току

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609632A (en) * 1968-08-19 1971-09-28 Trw Inc Releasable electrical connector
US3597724A (en) * 1968-09-23 1971-08-03 G & H Technology Connector
US3678445A (en) * 1970-07-31 1972-07-18 Itt Electrical connector shield
CA1070792A (en) * 1976-07-26 1980-01-29 Earl A. Cooper Electrical connector and frequency shielding means therefor and method of making same
US4432919A (en) * 1982-03-29 1984-02-21 Rinehart John R Method of making a composite foam taxidermy mannikin
US4529257A (en) * 1983-02-22 1985-07-16 International-Telephone & Telegraph Corp. Combined electrical shield and environmental seal for electrical connector
US4655532A (en) * 1986-02-06 1987-04-07 Allied Corporation Circumferential grounding and shielding ring for an electrical connector
US4808126A (en) * 1987-10-05 1989-02-28 Itt Corporation Electrical connector shield
FR2636173B1 (fr) * 1988-09-05 1992-04-24 Radiall Sa Boitier de connecteur blinde
US4874337A (en) * 1988-11-23 1989-10-17 Amp Incorporated Method of mounting a replaceable EMI spring strip

Also Published As

Publication number Publication date
DE69205401T2 (de) 1996-03-21
EP0545751A1 (de) 1993-06-09
FR2684494A1 (fr) 1993-06-04
ES2079160T3 (es) 1996-01-01
FR2684494B1 (fr) 1995-07-07
DE69205401D1 (de) 1995-11-16
US5445542A (en) 1995-08-29
CA2083973A1 (en) 1993-05-30
ATE129100T1 (de) 1995-10-15

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