EP0812037B1 - Elektrische Steckbuchse mit verstärkter Dose - Google Patents

Elektrische Steckbuchse mit verstärkter Dose Download PDF

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Publication number
EP0812037B1
EP0812037B1 EP97108783A EP97108783A EP0812037B1 EP 0812037 B1 EP0812037 B1 EP 0812037B1 EP 97108783 A EP97108783 A EP 97108783A EP 97108783 A EP97108783 A EP 97108783A EP 0812037 B1 EP0812037 B1 EP 0812037B1
Authority
EP
European Patent Office
Prior art keywords
terminal
electrical contact
contact
fact
walls
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
EP97108783A
Other languages
English (en)
French (fr)
Other versions
EP0812037A1 (de
Inventor
Georges Chaillot
Patrice Cappe
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 SA
Original Assignee
Framatome Connectors International SAS
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 International SAS filed Critical Framatome Connectors International SAS
Publication of EP0812037A1 publication Critical patent/EP0812037A1/de
Application granted granted Critical
Publication of EP0812037B1 publication Critical patent/EP0812037B1/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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members

Definitions

  • the present invention relates to a terminal one-piece female electrical contact, sheet metal cut and formed, intended to receive a male contact. It relates more particularly to a terminal of the type comprising a front body in the form of a cage having a bottom, an upper wall, and two side walls having each an internal tab which is connected to them by a 180 ° fold and which has a front part overhang constituting a contact blade.
  • contact terminals of the above type defined which can be manufactured by cutting, folding, forming and possibly rolling a wafer strip much more economically than low-cut terminals.
  • the contacts existing in cut and formed sheet metal have a certain number of drawbacks. If the contact blades are initially resting against each other and oppose a high force at their spacing, which is favorable to ensuring high contact pressure a good quality electrical connection, the strength is important and there is a risk difficult introduction. This first drawback can become serious if many contact terminals are provided in the same connector. If, on the contrary, the blades are initially separated, the pressure exerted by each contact blade can in some cases be insufficient to ensure a good electrical connection.
  • bent sheet metal contact terminals existing to date also present a risk crushing during handling in production or from harness manufacturers. This is particularly the case for female electrical contact terminals in the form of a cage but single wall like those described in patents US-A-4453799 or EP-A-0697752, or those having non-prestressed contact blades which do not participate not to the stiffness of the cage as described for example in patent application FR-A-2627020.
  • Single or double wall electrical terminals must also resist any tearing action or shearing of the metal strip constituting them. This is how, due to the cuts, forming, folding of these thin sheets, the intersections of cutting lines can shear, tear under the action of a lateral mechanical thrust exerted on a wall or parallel to it.
  • This risk is particularly high in thinned areas such as the transition area between the rear part for connection to an electric wire and the front part constituted by the cage, or even in the cage windows provided to allow attachment of the terminal in the plastic boxes of the connectors receiving these bounds.
  • the sizing would be greater than the internal dimensions of the cage and which would therefore apply pressure, on the contact blades, higher than the pressure of the elastic deformation threshold of the metal constituting the contact blade, which would cause deterioration final of the blade having then reached its threshold of plastic deformation.
  • the invention thus relates to a contact terminal female electric obtained from a single plate of electrically conductive metal having a portion rear allowing its connection with a conductor electric and a front part in the form of a cage a bottom, two upper half-walls, two walls side provided with means for guiding a male contact during its insertion and means of fixing this cage in connection boxes, these means of fixing comprising, among other things, a window made in each side wall, intended to receive a lug carried by a finger provided in the insulation of the connection box.
  • this terminal is characterized in that at least one of the edges of the opening has a deformation defining a shoulder whose surface support is significantly greater than the support surface ergot.
  • the deformation has a fold oriented towards the inside of the terminal.
  • the deformation presents a double fold oriented in a first direction towards inside the bollard then oriented 180 ° from the first direction.
  • the plane of the support surface defined with the plane perpendicular to the longitudinal axis of the bollard an angle ⁇ between 1 ° and 45 ° and preferably a value of 15 °.
  • Terminal 10 whose final constitution is shown in Figures 1 and 3 to 6, made from a plate of the kind shown in Figure 2, is intended to be inserted in a connector housing whose constitution general can be classic.
  • Terminal 10 is one piece, it can be viewed as having a front body 11 intended to receive a male contact 12 and a part rear or crimp barrel 14. These two parts are separate by a transition zone 15.
  • the barrel 14 has two sets of tabs 16 and 18, respectively intended for be crimped onto the core and the sheath of an electric wire 20.
  • the body of terminal 10 has a cage shape having a bottom 22 and two sides 24. Each side 24 is double. It includes an outer wall 26 and a tongue internal 28. Each external wall 26 is produced by 90 ° folding of the original plate according to one of the lines 30 indicated by dashed lines in FIG. 2. The internal tongue 28 is connected to the external wall 26 by a 180 ° bend along the edge indicated at 32 in the figure 2. The set of two walls and tabs 26 and 28 have a fold at right angles along the lines designated by 34 in Figure 2.
  • each tab internal 28 is only connected to the external wall corresponding 26 as in its rear part.
  • the part front of each internal tab 28 thus constitutes a contact blade 29 elastic support generating pressure on the surface of male contact 12 when this is inserted.
  • each contact blade 29 could be split by a slit over part of its length from the free end, this allows a more regular support but however, this splitting is not essential.
  • Mon contacts (or both) could be devoid of slot. Conversely, it would be possible to plan more a slot in each contact blade.
  • Each contact blade 29 advantageously has a shape of the kind shown in Figures 3 and 4.
  • the part in overhang, forming electrical contact represents a little more than half the total length of the internal tab 28 and it is shaped so as to have an inward camber. It presents plus a thickened bend 27 directed towards the other blade of contact, in the immediate vicinity of its free end.
  • the elastic force due to the bending of the contact blade 29 and tending to bring two blades close together, is absorbed by a flap 46 of the outer wall 26 corresponding, folded back. This flap 46 which also allows the guiding of the male contact during its insertion, thus retains the contact blade 29 in bending preload in a position close to the outer wall 26 to which it is linked, i.e.
  • the fold of the flaps is in front of the end edges of the side walls of the cage and is of rounded shape, which facilitates the introduction of the terminal in the insulator 51 of a connector housing, not represented, and limits the risks of deterioration of this insulating.
  • the edges of the bottom and the ceiling can be softened.
  • openings 50 intended to allow the immobilization of the terminal in an insulator 51 using a finger lock 52 which can have any of constitutions used at present.
  • this finger is made up by an elongated beam formed during the molding of the insulator, having a lug 53 directed inwards of the insulation cell and which can engage in the window 50. Because the beam 52 extends forward from lug 53, it is possible to unlock the terminal by driving a tube through the front passage 54 of the insulation (delimited by an annular lip having a breach allowing the mounting of the tongue 52), this tube coming to slip between the side of the terminal and the beam. Due to the symmetrical location of the two windows 50, the terminal can occupy either of two positions symmetrical in the cell of the insulation.
  • the window 50 has on one of its sides a portion of wall which during production allows the realization a deformation of the strip so as to form a fold 55.
  • This fold 55 defines a shoulder whose surface 56 is designed to cooperate with the upper bearing surface 57 of lug 53 allowing the fixing of the terminal in the insulation cell.
  • this deformation 55 is oriented inward and constitutes a stop acting on the outer surface of the contact blade 29 so as to avoid any risk of exceeding the elastic limit of said blade.
  • the folds 55 of the two external walls 26 converge in the same plane horizontal so that the contact points between the male contact 12 and the contact blades 29 on the one hand and between the contact blades 29 and the folds 55 else share define a space that eliminates any possibility introduce a male contact not conforming to the dimensions of the female terminal.
  • the fold 55 has a double orientation.
  • the first folding orients the part of strip precut to the center of the terminal, then a second operation turns 180 ° the same part of strip towards the outside of the terminal thus reinforcing the mechanical strength of the shoulder formed by fold 55.
  • the lower surface 56 of the fold 55 has a large bearing surface on the surface upper 57 of lug 53 which avoids any risk of shear of the wafer despite the decrease in the thickness of the strip.
  • This surface 56 is substantially greater than the bearing surface 57 so as to that the force exerted is as homogeneous as possible on these surfaces and does not generate an overhang.
  • the respective plans of the bearing surfaces complementary 56 and 57 define an angle ⁇ with the plane perpendicular to the longitudinal axis of the terminal, so that their respective opposite slopes create a self-engagement effect between the terminal and the insulator.
  • the value of the angle ⁇ of the surface 57 of the lug is between 1 ° and 45 ° and so preferential has a value of 15 °.
  • the windows 50a made in the terminal walls electrics of the prior art can obviously include the folds 55 although these walls are simple.
  • FIGS. 5 and 5A show a device for consolidation of terminal 10.
  • the flap 46 has a width L substantially equal to the internal width defined by the terminal walls one folded over so that the side edges of the flaps 46 come to bear on the inner surface of the bottom and upper half-walls of the terminal.
  • these walls are provided with openings 60 in which engage pins 61 formed on the ends of the lateral edges of the flaps 46.
  • this consolidation of the cage forming terminal 10 also allows bracing of the walls of this cage and prevents accidental crushing.
  • the fixing of the flaps 46 in the cage can be made by a single stud 61 provided on one or the other of the lateral edges of the flap 46.
  • Figures 6 and 6A show another arrangement able to reinforce the mechanical rigidity of the bollard by general.
  • transition zone 15 which can undergo deformations or misalignments prejudicial to the installation of the terminals in the insulators.
  • this area of transition is reduced in size.
  • the walls 26 of the front body 11 are extended by two branches 71 and 72 in the form of a square which define with the bottom 22 and the wall 26 an opening 70 thus constituted by 4 sides cooperating together in the consolidation of this area partially hollowed out.
  • the opening 70 allows the introduction of any lateral locking device secondary of the terminal in a connector housing.
  • a space 73 allowing the positioning of the end of any wire to crimp slightly exceeding the required dimensions, thus avoiding this wire to push the terminal beyond the standards required for the correct positioning of the bollard in its insulator.
  • manufacturing is done by cutting and forming (folding) of alloy strips copper having a thickness of 0.29 mm.
  • the strip is cut to give birth of successive platelets of the kind shown in Figure 2, connected together by a connecting strip 66.
  • the fold lines, indicated in dashed lines on Figure 2 can be marked with the press.
  • the blades of contacts 29 are shaped by bending and striking and the flaps 46 are formed.
  • the invention is not limited to modes individuals of achievement who have been represented and described as examples. She is likely to many variations. For example, it is possible to constitute a terminal whose faces are not exactly parallel but have a slope; a notch allowing the passage of the male blade at an angle, which is required for certain sealing embodiments, intended to receive a sealing tongue can be formed in front of the contact ceiling. He must be understood that the scope of this patent extends to such variants thus more generally than at all others remaining within the framework of equivalences, such as defined in the appended claims.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Insulators (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (5)

  1. Elektrischer Buchsenkontakt, der aus einem einzelnen elektrisch leitenden Metallzuschnitt erhalten wird, der einen rückwärtigen Bereich (14) für seinen Anschluß mit einem elektrischen Leiter (20) aufweist und einen vorderen Bereich in Form eines Käfigs bestehend aus einem Boden (22), zwei oberen Halbwänden und zwei Seitenwänden (24), die versehen sind mit einer Führungseinrichtung für einen Kontaktstift (12) bei seiner Einführung und einer Befestigungseinrichtung des Käfigs in einem Verbindungsgehäuse, wobei der Buchsenkontakt unter anderem ein in jeder Seitenwand angelegtes Fenster (50) aufweist, das ausgelegt ist, um einen Vorsprung aufzunehmen, der von einem Finger (53) getragen wird, der in dem Isolator des Verbindungsgehäuses vorgesehen ist,
    dadurch gekennzeichnet, daß wenigstens einer der Anschläge der Öffnung (50) eine eine Schulter (55) bildende Verformung darstellt, deren Auflagefläche (56) ungefähr oberhalb der Auflagefläche (57) des Vorsprungs (53) ist.
  2. Elektrischer Buchsenkontakt nach Anspruch 1, dadurch gekennzeichnet, daß die Verformung einen Knick (55) aufweist, der in das Innere des Buchsenkontakts gerichtet ist.
  3. Elektrischer Buchsenkontakt nach den Ansprüchen 1 und 2,
    dadurch gekennzeichnet, daß die Verformung einen Doppelknick aufweist, der in einer ersten Richtung in das Innere des Buchsenkontakts und anschließend um 180° gedreht zur ersten Richtung ausgerichtet ist.
  4. Elektrischer Buchsenkontakt nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß die Ebene der Auflagefläche (56) mit einer Ebene senkrecht zur Längsachse des Buchsenkontakts einen Winkel α definiert, der zwischen 1° und 45° liegt.
  5. Elektrischer Buchsenkontakt nach Anspruch 4, dadurch gekennzeichnet, daß der Winkel α einen Wert von 15° hat.
EP97108783A 1996-06-03 1997-06-02 Elektrische Steckbuchse mit verstärkter Dose Expired - Lifetime EP0812037B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9606785 1996-06-03
FR9606785A FR2749440B1 (fr) 1996-06-03 1996-06-03 Borne de contact electrique femelle de type a cage renforcee

Publications (2)

Publication Number Publication Date
EP0812037A1 EP0812037A1 (de) 1997-12-10
EP0812037B1 true EP0812037B1 (de) 2002-01-30

Family

ID=9492636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108783A Expired - Lifetime EP0812037B1 (de) 1996-06-03 1997-06-02 Elektrische Steckbuchse mit verstärkter Dose

Country Status (10)

Country Link
US (1) US5836793A (de)
EP (1) EP0812037B1 (de)
JP (1) JPH10125380A (de)
KR (1) KR980006632A (de)
AT (1) ATE212754T1 (de)
BR (1) BR9703429A (de)
CA (1) CA2204292A1 (de)
DE (1) DE69710125T2 (de)
ES (1) ES2170299T3 (de)
FR (1) FR2749440B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749443B1 (fr) * 1996-06-03 1998-08-21 Framatome Connectors Int Borne de contact electrique femelle a zone de transition renforcee
US6083024A (en) * 1997-04-25 2000-07-04 The Whitaker Corporation Electrical connector assembly with reduced wear and mating forces
JP4722707B2 (ja) 2005-10-13 2011-07-13 日本圧着端子製造株式会社 垂直嵌合雌端子及びこれが装着されるハウジング
JP5614369B2 (ja) * 2011-05-19 2014-10-29 住友電装株式会社 端子金具
JP6124537B2 (ja) * 2012-09-03 2017-05-10 矢崎総業株式会社 メス端子
JP6119524B2 (ja) * 2013-09-20 2017-04-26 住友電装株式会社 端子金具
FR3045964B1 (fr) * 2015-12-17 2018-06-15 Aptiv Technologies Limited Contact femelle avec lames laterales de maintien pour contact male et ensemble de connexion comportant de tels contacts femelle et male
FR3055747B1 (fr) * 2016-09-06 2021-11-19 Delphi Int Operations Luxembourg Sarl Cage de contact electrique femelle

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576458B2 (fr) * 1985-01-24 1987-02-06 Stocko France Sa Cosse femelle pour connexion electrique
FR2621180B1 (fr) * 1987-09-28 1990-01-12 Francelco Sa Borne de contact electrique de type cage
FR2627020B1 (fr) * 1988-02-08 1994-05-27 Amp France Contact electrique destine a recevoir une patte complementaire de connexion
JPH01143080U (de) * 1988-03-15 1989-09-29
JPH05121128A (ja) * 1991-10-24 1993-05-18 Fujikura Ltd 低挿入力コネクタ
JP2575610Y2 (ja) * 1992-02-10 1998-07-02 矢崎総業株式会社 雌型端子金具
JP2705046B2 (ja) * 1992-06-03 1998-01-26 矢崎総業株式会社 コネクタ用端子
JP2725755B2 (ja) * 1993-08-31 1998-03-11 矢崎総業株式会社 端子金具
EP0697752A3 (de) * 1994-08-19 1996-05-29 Whitaker Corp Elektrische Anschlussbuchse
FR2730864B3 (fr) * 1995-02-17 1997-04-30 Amp France Borne femelle electrique d'une seule piece
JP3528016B2 (ja) * 1995-09-19 2004-05-17 住友電装株式会社 雌側コネクタ
JP3204887B2 (ja) * 1995-11-02 2001-09-04 矢崎総業株式会社 電気接続用コネクタの雌端子

Also Published As

Publication number Publication date
BR9703429A (pt) 1998-07-07
FR2749440B1 (fr) 1998-10-30
CA2204292A1 (en) 1997-12-03
ES2170299T3 (es) 2002-08-01
US5836793A (en) 1998-11-17
DE69710125T2 (de) 2002-08-29
EP0812037A1 (de) 1997-12-10
FR2749440A1 (fr) 1997-12-05
ATE212754T1 (de) 2002-02-15
JPH10125380A (ja) 1998-05-15
DE69710125D1 (de) 2002-03-14
KR980006632A (ko) 1998-03-30

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