EP0547969A1 - Contact électrique à lame souple pour connecteur électrique - Google Patents

Contact électrique à lame souple pour connecteur électrique Download PDF

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Publication number
EP0547969A1
EP0547969A1 EP92403428A EP92403428A EP0547969A1 EP 0547969 A1 EP0547969 A1 EP 0547969A1 EP 92403428 A EP92403428 A EP 92403428A EP 92403428 A EP92403428 A EP 92403428A EP 0547969 A1 EP0547969 A1 EP 0547969A1
Authority
EP
European Patent Office
Prior art keywords
contact
flexible blade
parts
tail
blade
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.)
Ceased
Application number
EP92403428A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gilbert Spinnato
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
Souriau et Cie
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 Souriau et Cie filed Critical Souriau et Cie
Priority to DE9218899U priority Critical patent/DE9218899U1/de
Publication of EP0547969A1 publication Critical patent/EP0547969A1/fr
Ceased 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section

Definitions

  • the present invention relates to female type contacts for electrical connector comprising at least one elongated flexible blade, extending substantially axially away from the axis of the contact and elastically deformable transversely during the introduction / extraction of a contact of associated male type.
  • the invention relates more particularly, although not exclusively, to connector contacts intended for space applications, which contacts, taking into account the characteristics inherent in a space environment (vacuum, weightlessness, large thermal differences, impossibility of corrective maintenance) , must meet requirements of high reliability, long service life and reduction as large as possible of the efforts of insertion / extraction.
  • split sockets Various contacts of the aforementioned type are known, known as split sockets, in which the structure of the socket makes it difficult to control the insertion / extraction effort, in particular because of too wide tolerance ranges. It is thus necessary to perform a sorting of the contacts to discard the non-standard contacts.
  • the flexible blade contacts currently produced do not have a sufficient safety margin.
  • the Applicant has been able to establish that this drawback resulted directly from the structure and the method of manufacture of the flexible blades currently used.
  • the contact end of the blades is obtained by bending a metal piece initially straight in the longitudinal direction.
  • this contact end pivots relative to the fixing part at the level of the fold which acts as an articulation. This results in a concentration of the stresses and therefore a noticeable fatigue of the metal at the level of the bend such that the safety coefficient is insufficient for certain applications such as space applications.
  • the object of the invention is therefore precisely to remedy the above-mentioned drawbacks of current electrical contacts with flexible blades so that they better meet the various requirements of practice in terms of reliability, service life and value of the product. '' insertion / extraction effort, in particular for specific applications such as those involving their use in a spatial environment.
  • abutment surface located behind the flexible blade (relative to the axis of contact) to limit the transverse deformation of said blade and keep it within the limits of an elastic deformation.
  • the part with reduced inertia has a narrower width than the width of the intermediate and anterior parts which frame it.
  • the flexible blade can have a substantially constant thickness in all of its parts; it is then possible, at least in certain exemplary embodiments, that the flexible blade as a whole is obtained from a sheet of metal.
  • the transverse curvature of the flexible blade is advantageous for the transverse curvature of the flexible blade to be substantially constant at least over the entire length of the intermediate parts, of reduced and anterior inertia. This curvature transverse can then be obtained by a conventional technique of bending the pre-cut blade in a metal sheet.
  • each blade is able to exhibit a very gravitational aptitude for elastic deformation, without however that there is a concentration of the stresses in a particular zone, thanks to the elimination of the fold present in the blades flexible from previous contacts.
  • the limit of elastic deformation can be increased by the use of a cuproberyllium treated in whole or in part, which remains possible under acceptable cost conditions by producing the blades from a thin strip of cuproberyllium cut and arched , whatever the technological solution (individual or grouped blades) that is adopted.
  • the tubular body and the inner barrel can in practice be secured to one another by crimping, and the tail portion of the blades is thus blocked between them.
  • a first possible exemplary embodiment use is made of pallets produced in unitary form which are embedded by their tail part between the tubular body and the inner barrel and their respective tail parts have widths such that they surround the inner barrel being butted laterally against each other.
  • the flexible blades are joined in a single component part and their tail parts are joined in the form of a tubular sleeve embedded between the tubular body and the inner barrel.
  • the female type contact 1 comprises for example an outer tube or tubular body 2 open at its two ends, one of the ends, intended to receive a male contact for example pin type (whose lateral outline has been simply shown by the dotted lines designated by the letter M), having its edge curved inward to form a guide lip 3.
  • a male contact for example pin type (whose lateral outline has been simply shown by the dotted lines designated by the letter M), having its edge curved inward to form a guide lip 3.
  • the tube 2 is threaded on a solid barrel 4 which itself is, towards the rear, shaped in any suitable manner (not shown) to be connected to an electric cable.
  • tail parts 5 of several (here three) flexible blades 6 regularly distributed circumferentially.
  • each blade 6 is in the form of an elongated metal blade, for example made of cuproberyllium treated at least locally with a core, having a contact part 7 situated towards the front and a part of tail 5 located towards the rear which are separated by an intermediate part 8 provided with a continuous curvature and of large radius, without bending, in the direction of the axis A of the contact.
  • this blade has sufficient stiffness with respect to its relatively modest thickness, it is bent transversely over its whole length.
  • the radius of curvature of the transverse bending is the same at least over the entire length of the parts 7 and 8 above.
  • a zone is provided.
  • reduction in inertia (here achieved by reducing the width of the metal strip) located at 10 between the front contact part 7 and the intermediate part 8; the reduced width zone 10 is surrounded by the parts 7 and 8 which have progressively increasing widths.
  • the flexible blade has, in top view (FIG. 2), a variable width contour which, in combination with the transverse curvature, leads to a member with longitudinally variable stiffness and with controlled longitudinal flexibility.
  • the introduction of the pin M of a male contact into the female socket 1 causes the front contact parts 7 of the blades 6 to be raised transversely, as shown in FIG. 1.
  • the wall z of the tubular body 2 serves as a stop which limits the transverse deflection of the blade 6.
  • each blade in its different zones allows, while maintaining good quality electrical contact with the male pin, to reduce the bearing force of the contact part 7 on the pin, and therefore to reduce the wear of these organs.
  • a flexible blade thus formed can be made of a material with highly elastic properties, such as cuproberyllium treated at heart, according to a simpler manufacturing process than that required by female contacts made in one piece.
  • each blade is cut in one piece flat in a sheet of metal, then bent transversely and longitudinally; it is then treated at heart as a whole.
  • the tails 5 of the blades 6 have a width such that, when they are placed in the tubular body, they are butted laterally against each other and, together, they completely surround the barrel 4, as seen in the Figure 5. This results in a lateral locking of the blades 6 in a suitable position.
  • each blade 6 may have, at or towards the free end of its tail 5, a radial projection 11 directed inwards which is engaged in a housing (for example an annular groove 12) hollowed out in the barrel 4. The blades 6 are thus retained axially.
  • FIG. 6 shows an exemplary embodiment in which the tail parts 5 ′ are all joined together and form a tubular sleeve which is fitted on the external tube 2 and embedded between it and the barrel 4. All the blades 6 ′ and the tubular sleeve 5 ′ are in one piece and therefore form a single, single piece designated as a whole by the reference 13.
  • the part 13 can be manufactured in various ways, for example by machining the individual blades 6 'in a section of tube, or even, in a simpler and more economical manner, by flat cutting of a metal blank shown in the figure. 6, then rolling thereof to form the transverse camber of the blades 6 'and the sleeve 5'. Cutouts made at the base of the metal blank make it possible to form radial projections 12 for axial retention.
  • an electrical contact according to the invention can be arranged with any number of flexible blades on the basis of the arrangements which have just been stated.
  • the flexible blades are then distributed angularly in a regular manner, so that the male contact is guided axially by the blades or parts of blades facing each other.
  • the contact 14 shown in FIG. 7 is constituted, in general, in the same way as the contact 1 in FIG. 1 (the same reference numbers have been kept to designate the identical members), except that the contact 14 is equipped with a single flexible blade 6.
  • support and guide 15 which can be shaped approximately as a contact blade, except that it is not arranged for chirtransversally.
  • the support and guide piece 15 has a tail portion 5 arranged to be embedded between the tubular body 2 and the barrel 4 of the same way as a flexible contact blade 6 or 6 'mentioned above; it is bent transversely; however, it does not have a reduced inertia zone; it can advantageously have a width greater than that of a flexible blade, in order to facilitate guiding the male pin M, as can be seen in FIG. 10 which shows the respective position of the parts 6 and 15 against the pin M pressed in contact.
  • Figure 9 shows the same contact in the absence of the pin.
  • the single flexible blade 6 and the support and guide piece 15 can be arranged as already indicated above either in the form of two separate members, unitarily embedded and retained between the tube 2 and the barrel 4, or in the form of a monobloc member obtained by flat cutting of a metal blank 16 as shown in Figure 8, then camber and rolling thereof.
  • the one-piece member 16 is then mounted like the member 13 in FIG. 6.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP92403428A 1991-12-19 1992-12-16 Contact électrique à lame souple pour connecteur électrique Ceased EP0547969A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9218899U DE9218899U1 (de) 1991-12-19 1992-12-16 Elektrischer Kontakt mit biegsamer Lamelle für einen elektrischen Steckverbinder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115780A FR2685558A1 (fr) 1991-12-19 1991-12-19 Contact electrique a lame souple pour connecteur electrique.
FR9115780 1991-12-19

Publications (1)

Publication Number Publication Date
EP0547969A1 true EP0547969A1 (fr) 1993-06-23

Family

ID=9420222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403428A Ceased EP0547969A1 (fr) 1991-12-19 1992-12-16 Contact électrique à lame souple pour connecteur électrique

Country Status (4)

Country Link
US (1) US5322459A (cs)
EP (1) EP0547969A1 (cs)
CA (1) CA2085294C (cs)
FR (1) FR2685558A1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775960A (en) * 1995-12-28 1998-07-07 Yazaki Corporation Female terminal

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2739623B2 (ja) * 1993-05-17 1998-04-15 矢崎総業株式会社 ソケット型ターミナル
US5498179A (en) * 1994-05-04 1996-03-12 Woodhead Industries, Inc. Electrical connector
US5897404A (en) * 1996-09-30 1999-04-27 The Whitaker Corporation Socket terminal
US6296533B1 (en) * 1998-08-31 2001-10-02 The Whitaker Corporation Electrical receptacle contact
JP2000100522A (ja) * 1998-09-18 2000-04-07 Yazaki Corp シールドコネクタ
EP1107378B1 (fr) * 1999-11-30 2003-06-18 Preci-Dip Durtal SA Pièce de contact pour un connecteur électrique
MY135471A (en) * 2002-01-09 2008-04-30 Philip Morris Prod Cigarette filter with beaded carbon
US7784471B2 (en) * 2003-01-09 2010-08-31 Philip Morris Usa Inc. Cigarette filter with beaded carbon
FR2853997B1 (fr) * 2003-04-15 2009-07-03 Guy Coulon Piece de contact pour connecteur electrique
US6997750B2 (en) 2003-07-23 2006-02-14 Fci Americas Technology, Inc. Electrical connector contact
DE102005024679A1 (de) * 2005-05-30 2006-12-07 Rohde & Schwarz Gmbh & Co. Kg Steckhülse und Verfahren zu deren Herstellung
FR2902240B1 (fr) 2006-06-13 2014-07-04 Souriau Contact de type douille elastique monobloc a insertion de force controlee
US7717410B2 (en) * 2006-10-24 2010-05-18 Wieslaw Julian Oledzki Smooth non-linear springs, particularly smooth progressive rate steel springs, progressive rate vehicle suspensions and method
WO2010012872A1 (fr) 2008-07-29 2010-02-04 Saint-Gobain Glass France Connecteur electrique femelle, male et connexion electrique utilisant ce connecteur electrique femelle et/ou male
DE102012017949A1 (de) * 2011-09-28 2013-03-28 Sumitomo Wiring Systems, Ltd. Anschlusspassstück
US9450322B2 (en) * 2015-01-16 2016-09-20 Amphenol Corporation Electrical contact having tines with edges of different lengths

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1247969A (fr) * 1959-10-21 1960-12-09 Souriau & Cie Perfectionnements apportés aux éléments contacteurs femelle pour prises de courant
DE8205678U1 (de) * 1982-03-02 1983-12-22 Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid Elektrische Steckverbindungsvorrichtung
DE3606340A1 (de) * 1986-02-27 1987-09-03 Kostal Leopold Gmbh & Co Kg Elektrische steckkontaktbuchse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3342742C2 (de) * 1983-11-25 1985-10-24 Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf Verfahren zur Herstellung von Kontaktfederbuchsen
DE3412874C1 (de) * 1984-04-05 1985-08-22 Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf Verfahren zur Herstellung von Kontaktfederbuchsen
DE3412877A1 (de) * 1984-04-05 1985-10-17 Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf Verfahren zur herstellung von kontaktfederbuchsen
DE3412875A1 (de) * 1984-04-05 1985-10-17 Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf Verfahren zur herstellung von kontaktfederbuchsen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1247969A (fr) * 1959-10-21 1960-12-09 Souriau & Cie Perfectionnements apportés aux éléments contacteurs femelle pour prises de courant
DE8205678U1 (de) * 1982-03-02 1983-12-22 Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid Elektrische Steckverbindungsvorrichtung
DE3606340A1 (de) * 1986-02-27 1987-09-03 Kostal Leopold Gmbh & Co Kg Elektrische steckkontaktbuchse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775960A (en) * 1995-12-28 1998-07-07 Yazaki Corporation Female terminal

Also Published As

Publication number Publication date
FR2685558B1 (cs) 1995-06-02
FR2685558A1 (fr) 1993-06-25
CA2085294C (en) 2001-05-15
CA2085294A1 (en) 1993-06-20
US5322459A (en) 1994-06-21

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