EP0302777B1 - Elektrische Anschlussklemme und Herstellungsverfahren einer solchen Klemme - Google Patents

Elektrische Anschlussklemme und Herstellungsverfahren einer solchen Klemme Download PDF

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Publication number
EP0302777B1
EP0302777B1 EP88401982A EP88401982A EP0302777B1 EP 0302777 B1 EP0302777 B1 EP 0302777B1 EP 88401982 A EP88401982 A EP 88401982A EP 88401982 A EP88401982 A EP 88401982A EP 0302777 B1 EP0302777 B1 EP 0302777B1
Authority
EP
European Patent Office
Prior art keywords
contact
shank
tubular contact
tube
terminal
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
EP88401982A
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English (en)
French (fr)
Other versions
EP0302777A1 (de
Inventor
Christian Mazelle
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
Publication of EP0302777A1 publication Critical patent/EP0302777A1/de
Application granted granted Critical
Publication of EP0302777B1 publication Critical patent/EP0302777B1/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
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section

Definitions

  • the present invention relates to electrical contact terminals used in connectors, and in particular in connectors with a large number of contacts intended for signal transmission, for example in aircraft construction.
  • the present invention aims to provide an electrical contact terminal which can be manufactured by the stamped-cut-rolled-folded technique, an economical technique and which better meets the requirements of the practice than the previously known solutions, in particular in that the barrel contact terminal is not cracked and thus guarantees an electrically reliable and safe fixing of an electrical conductor.
  • an electrical contact terminal comprising a body having a front tubular contact divided into contact fingers by slots and a rear shaft intended to receive an electrical conductor and the terminal comprising, in addition, an external protection tube of the front contact, characterized in that the barrel is continuous and in that it is separated from the tubular contact by means of a circumferential bulge trapped in a flared end portion of the outer tube.
  • the rear barrel Due to the fact that the rear barrel has no longitudinal slot, it allows secure and durable fixing by crimping or welding.
  • the contact terminal is in two parts only. Its manufacture is therefore particularly economical.
  • the tubular contact is separate from the barrel instead of being integral with it.
  • This solution makes it possible to use different materials for the tubular contact and for the barrel.
  • the material used for the barrel can have characteristics well suited to the production of the latter or the method of manufacturing the barrel can be adapted to the material.
  • this second solution makes it possible to optimize each material to take into account both the manufacturing process used and the specifications for using the contact (intensity, contact resistance).
  • the barrel and the tubular contact can be fixed to each other by any suitable method, such as for example welding or crimping.
  • the invention also provides a manufacturing process as defined in claim 7 in which the body is manufactured by cutting and rolling in a strip to form the front tubular contact and by cutting and stamping the barrel back.
  • the entire body is manufactured in the same strip, leaving the tubular contact connected to the part intended to constitute the drum by a tongue. Finally, the tongue is bent to bring the tubular contact into alignment with the barrel before installing the external protection tube, which prevents unfolding and ensures electrical and mechanical continuity.
  • This outer tube is advantageously obtained by cold stamping.
  • the body When the body is in one piece, it will generally be made of an alloy based on ductile copper, bronze or a light alloy.
  • the external protection tube can be made of stainless steel and often will have a thickness significantly smaller than that of for example 0.1 mm instead of 0.25 mm.
  • the invention provides a method of manufacturing a terminal according to claim 1, in which the body is manufactured by cutting a first strip and rolling and the rear barrel by cutting and stamping another strip of material. differ from the first and in which the tubular contact and the barrel are kept in alignment by crimping or welding the external tube to them.
  • the electrical contact terminal shown diagrammatically in FIG. 1 comprises a body 10 surrounded in its front part by an external protection tube 12.
  • the contact terminal shown is intended to be mounted in an insulating block 14 and to be retained in this block by a split elastic ring 16.
  • the ring 16 is trapped in a recess of the block and has internal fingers 17 intended to maintain a bulged part of the terminal in abutment against one of the shoulders limiting the recess.
  • the body 10 can be viewed as comprising a rear barrel 18 in the form of a continuous barrel, that is to say not split, and a front tubular contact 20 connected by a bulge 22.
  • the contact has a stepped shape and its front part is split by slots 24 into elastic fingers bearing on a male contact, not shown.
  • the body of the terminal shown in Figure 1 also has stop tabs 26 located between the slotted front part and the bulge 22, intended to limit the fully inserted position of the electrical conductor.
  • the outer protection tube 12 has a constant diameter over most of its length. It rests on the widest part of the contact and surrounds the fingers 24, the radial expansion of which it limits. It overflows from these fingers at the front. At the rear, the protective tube 12 has a bulge formed by successive folds and constituting a ring trapping the bulge 22 of the body.
  • the barrel and the contact are connected to each other by a tongue 32 constituting a hinge, in the region of the bulge.
  • This tongue is delimited by a circumferential slot 34 originating from the folding over one another of the barrel and of the contact, as will be seen below. Due to the confinement of the bulge 22 by the tube 12, the contact terminal in its final state cannot fold back, which would lead to a misalignment of the barrel and of the contact.
  • In the barrel 18 can be formed one or more holes 36 for connecting a conductor by welding.
  • the body of the contact terminal of FIG. 1 is manufactured by cutting, deep drawing and rolling of a strip according to the sequence shown diagrammatically in FIGS. 3 and 4. This sequence is given only by way of example and the distribution of operations between successive workstations could be modified.
  • a strip is cut with the press so as to leave two edge strips 38 connecting blanks having a part 40 intended to constitute the contact and an approximately circular part 42 intended to constitute the barrel (FIG. 3 ).
  • a tongue 32 remains between the parts 40 and 42 to constitute a hinge.
  • a notch 43 is cut to give birth to one of the slots 24 (the other slot resulting from the approximation of the edges of the part 40).
  • the retaining tabs 26 are cut out.
  • a first stamping pass using a punch constitutes a blank 44 of the barrel.
  • one of the edge strips 38 is cut; the part 40 is rolled to form the contact 20 and the tabs 26 are deformed inward.
  • the blank 44 is stretched to give it the final shape of the barrel 18.
  • the part 40 has two lateral tabs 46 which are finally placed side by side and serve to ensure the retention using the tube 12.
  • the tubular contact is folded around the tongue 32 until the tabs 46 rest on the terminal rim of the barrel. It is desirable to give these legs an important peripheral development to improve support.
  • the body 10 is then detached from the remaining edge strip 38, the tube 12 is put in place and one of its ends is crimped onto the bulge 22 formed by the terminal rim of the barrel, the tongue 32 forming hinge and legs 46.
  • the end of the tube 12 is not completely crimped but simply has a double bend. But the legs 46 are also folded over the end of the barrel, without a rim, instead of constituting a simple flat support.
  • the material constituting the body will generally be one of those commonly used in connectors, in particular copper alloys or light alloys sufficiently ductile to allow the drawing of the barrel 18.
  • the body once completed will be subjected to surface heat treatments or to the core, for example to a coating of ductile and non-porous nickel a few microns thick, followed by a deposit of gold of thickness less than one micron.
  • the protective tube generally two or three times thinner than the body, may be made of ferrous material and in particular stainless steel. There are indeed stainless steels with sufficient ductility to allow the tube 12 to be manufactured by cold stamping, stamping, direct or reverse spinning.
  • the front tubular contact is produced by cutting and rolling a strip of material with high mechanical characteristic.
  • the barrel is produced separately by stamping a strip of material suitable for stamping, such as copper alloys with high cold deformation.
  • the barrel and the tubular contact are positioned and then fixed to each other.
  • the assembly is maintained by the external protection tube.
  • the lugs 46 are for example replaced by a flange extending all around the contact.
  • the invention is in no way limited to the limits of female contacts described as examples. It can be applied regardless of the constitution of the front part, in particular if the latter is a male contact.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)

Claims (11)

  1. Elektrische Anschlußklemme mit einem Körper (10), der einen röhrenförmigen vorderen Kontakt (20) aufweist, der durch Langlöcher (24) in Kontaktfinger aufgeteilt ist und eine hintere Hülse (18) aufweist, die dazu bestimmt ist, einen elektrischen Leiter aufzunehmen, und wobei die Anschlußklemme des weiteren ein äußeres Schutzrohr (12) für den Kontakt aufweist, dadurch gekennzeichnet, daß die Hülse (18) durchgehend ist und daß sie vom röhrenförmigen Kontakt durch einen in einem aufgeweiteten Endteil des äußeren Schutzrohres eingeschlossenen umlaufenden Wulst (22) getrennt ist.
  2. Klemme nach Anspruch 1, dadurch gekennzeichnet, daß die Klemme nur aus zwei Teilen besteht, wobei der vordere röhrenförmige Kontakt durch eine umgebogene Lasche (32) mit der hinteren Hülse verbunden ist.
  3. Klemme nach Anspruch 1, dadurch gekennzeichnet, daß der Wulst (22) von einer die Hülse mit dem röhrenförmigen Kontakt verbindenden umgebogenen Lasche (32) und von an der Hülse anliegenden Endansätzen (46) des röhrenförmigen Kontakts gebildet ist.
  4. Klemme nach Anspruch 1, dadurch gekennzeichnet, daß der vordere röhrenförmige Kontakt und die hintere Hülse einzeln ausgebildet und durch das äußere Schutzrohr miteinander verbunden sind.
  5. Klemme nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der aufgeweitete Endteil des äußeren Schutzrohres von rechtwinkligen Falzen gebildet ist, die den umlaufenden Wulst des Körpers zumindest teilweise umgeben.
  6. Klemme nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Körper aus einem Bandmaterial aus einer Legierung auf Kupferbasis oder einer Leichtmetall-Legierung besteht und die Dicke des aus rostfreiem Stahl bestehenden Rohres zwischen einem Drittel und der Hälfte der Dicke des Körpers beträgt.
  7. Verfahren zur Herstellung einer Klemme nach Anspruch 1, bei dem der Körper aus einem Bandmaterial durch Stanzen und Rollen eines Abschnitts (40), der dazu bestimmt ist, den röhrenförmigen Kontakt zu bilden, und durch Stanzen und Ziehen der hinteren Hülse (18) hergestellt wird, und bei dem der röhrenförmige Kontakt und die Hülse durch Falzen des äußeren Rohres um diese in Ausrichtung gehalten werden.
  8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß der röhrenförmige Kontakt und die hintere Hülse aus dem selben Bandmaterial gebildet sind, indem sie durch eine Lasche (32) zusammengehalten werden, die dann umgebogen wird, um den röhrenförmigen Kontakt in Ausrichtung mit der Hülse zu bringen.
  9. Verfahren zur Herstellung einer Klemme nach Anspruch 1, bei dem der Körper durch Stanzen eines ersten Bandmaterials und Rollen und die hintere Hülse durch Stanzen und Ziehen eines weiteren, aus einem anderen Material bestehenden Bandmaterials hergestellt wird, und bei dem der röhrenförmige Kontakt und die Hülse durch Falzen oder Schweißen des äußeren Rohres auf diese in Ausrichtung gehalten werden.
  10. Verfahren nach Anspruch 7, 8 oder 9, dadurch gekennzeichnet, daß das Rohr durch Kaltstauchung hergestellt ist.
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß das Rohr auf dem Körper durch Falzen seines hinteren Endteiles auf dem Wulst befestigt wird, so daß die Hülse und der Kontakt in Ausrichtung gehalten werden und das Entrollen des Kontaktes verhindert wird.
EP88401982A 1987-08-03 1988-07-29 Elektrische Anschlussklemme und Herstellungsverfahren einer solchen Klemme Expired - Lifetime EP0302777B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8711001A FR2619256B1 (fr) 1987-08-03 1987-08-03 Borne de contact electrique et procede de fabrication d'une telle borne
FR8711001 1987-08-03

Publications (2)

Publication Number Publication Date
EP0302777A1 EP0302777A1 (de) 1989-02-08
EP0302777B1 true EP0302777B1 (de) 1992-10-14

Family

ID=9353828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401982A Expired - Lifetime EP0302777B1 (de) 1987-08-03 1988-07-29 Elektrische Anschlussklemme und Herstellungsverfahren einer solchen Klemme

Country Status (4)

Country Link
US (1) US4934964A (de)
EP (1) EP0302777B1 (de)
DE (1) DE3875304T2 (de)
FR (1) FR2619256B1 (de)

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Publication number Priority date Publication date Assignee Title
GB2282496B (en) * 1991-03-15 1995-08-30 Cardell Corp Pin terminal for a micropin connector system
US5147230A (en) * 1991-12-19 1992-09-15 General Motors Corporation Two piece electrical female terminal
US5199910A (en) * 1991-12-23 1993-04-06 Gte Products Corporation Connector device
US5186663A (en) * 1992-03-23 1993-02-16 General Motors Corporation Electrical female terminal
US5340337A (en) * 1993-06-04 1994-08-23 The Whitaker Corporation Protective sleeve for cantilevered spring contacts and method of making the same
US5897404A (en) * 1996-09-30 1999-04-27 The Whitaker Corporation Socket terminal
JP2002305068A (ja) * 2001-04-04 2002-10-18 Hirose Electric Co Ltd 電気コネクタ用端子及びキャリア付端子材
US7021963B2 (en) * 2002-08-15 2006-04-04 3M Innovative Properties Company Electrical contact
DE502005001423D1 (de) * 2005-04-08 2007-10-18 Auto Kabel Man Gmbh Stromunterbrecher für elektrische Versorgungsleitungen von Kraftfahrzeugen
CN201054392Y (zh) * 2007-01-31 2008-04-30 黄淑薰 线缆连接器端子结构
US20110224583A1 (en) * 2008-11-14 2011-09-15 Bruno Lequeux Rehabilitation Device
JP5430274B2 (ja) 2009-07-31 2014-02-26 矢崎総業株式会社 連鎖端子
US8853721B2 (en) 2010-03-05 2014-10-07 Willis Electric Co., Ltd. Light-emitting diode with wire-piercing lead frame
US8454186B2 (en) 2010-09-23 2013-06-04 Willis Electric Co., Ltd. Modular lighted tree with trunk electical connectors
US8298633B1 (en) 2011-05-20 2012-10-30 Willis Electric Co., Ltd. Multi-positional, locking artificial tree trunk
US8920002B2 (en) 2011-06-21 2014-12-30 Willis Electric Co., Ltd. Wire-clasping light-emitting diode lights
US8469750B2 (en) 2011-09-22 2013-06-25 Willis Electric Co., Ltd. LED lamp assembly and light strings including a lamp assembly
US9157587B2 (en) 2011-11-14 2015-10-13 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
US8569960B2 (en) 2011-11-14 2013-10-29 Willis Electric Co., Ltd Conformal power adapter for lighted artificial tree
US8876321B2 (en) 2011-12-09 2014-11-04 Willis Electric Co., Ltd. Modular lighted artificial tree
DE102012002145A1 (de) * 2012-02-04 2013-08-08 Kostal Kontakt Systeme Gmbh Hülsenkontakt für einen elektrischen Nullkraftsteckverbinder
US10206530B2 (en) 2012-05-08 2019-02-19 Willis Electric Co., Ltd. Modular tree with locking trunk
US9044056B2 (en) 2012-05-08 2015-06-02 Willis Electric Co., Ltd. Modular tree with electrical connector
US9179793B2 (en) 2012-05-08 2015-11-10 Willis Electric Co., Ltd. Modular tree with rotation-lock electrical connectors
US9572446B2 (en) 2012-05-08 2017-02-21 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
US9439528B2 (en) 2013-03-13 2016-09-13 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
US9671074B2 (en) 2013-03-13 2017-06-06 Willis Electric Co., Ltd. Modular tree with trunk connectors
US9894949B1 (en) 2013-11-27 2018-02-20 Willis Electric Co., Ltd. Lighted artificial tree with improved electrical connections
US8870404B1 (en) 2013-12-03 2014-10-28 Willis Electric Co., Ltd. Dual-voltage lighted artificial tree
US9883566B1 (en) 2014-05-01 2018-01-30 Willis Electric Co., Ltd. Control of modular lighted artificial trees
US10683974B1 (en) 2017-12-11 2020-06-16 Willis Electric Co., Ltd. Decorative lighting control

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US3564487A (en) * 1969-02-03 1971-02-16 Itt Contact member for electrical connector
US4262987A (en) * 1979-09-27 1981-04-21 The Bendix Corporation Electrical connector
US4373773A (en) * 1981-01-26 1983-02-15 The Bendix Corporation Socket type contact assembly
US4621887A (en) * 1981-03-09 1986-11-11 Allied Corporation Electrical contact
US4431256A (en) * 1981-11-03 1984-02-14 The Bendix Corporation Split sleeve socket contact
CA1209661A (en) * 1983-08-05 1986-08-12 Thomas M. Cairns Miniature electrical terminal for low energy electronic circuits
FR2596588A1 (fr) * 1986-03-26 1987-10-02 Allied Corp Contact femelle a douille fendue pour connecteur electrique

Also Published As

Publication number Publication date
DE3875304T2 (de) 1993-02-25
EP0302777A1 (de) 1989-02-08
US4934964A (en) 1990-06-19
FR2619256A1 (fr) 1989-02-10
FR2619256B1 (fr) 1989-12-22
DE3875304D1 (de) 1992-11-19

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