EP0602681B1 - Buchsenklemme mit Rückhaltemittel - Google Patents

Buchsenklemme mit Rückhaltemittel Download PDF

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Publication number
EP0602681B1
EP0602681B1 EP19930120452 EP93120452A EP0602681B1 EP 0602681 B1 EP0602681 B1 EP 0602681B1 EP 19930120452 EP19930120452 EP 19930120452 EP 93120452 A EP93120452 A EP 93120452A EP 0602681 B1 EP0602681 B1 EP 0602681B1
Authority
EP
European Patent Office
Prior art keywords
tab
terminal
section
receptacle
locking
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
EP19930120452
Other languages
English (en)
French (fr)
Other versions
EP0602681A3 (en
EP0602681A2 (de
Inventor
Gheorghe Hotea
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of EP0602681A2 publication Critical patent/EP0602681A2/de
Publication of EP0602681A3 publication Critical patent/EP0602681A3/en
Application granted granted Critical
Publication of EP0602681B1 publication Critical patent/EP0602681B1/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
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type

Definitions

  • the invention relates to an electrical receptacle terminal of the type intended to receive a flat rectangular terminal tab.
  • the invention is directed to a receptacle terminal which has a retention means to maintain the tab in various positions relative to the receptacle terminal.
  • U.S. Patent Number 3,976,348 (U.S. Reissue Patent Number 30,277) discloses a stamped and formed electrical terminal receptacle which is dimensioned to receive a terminal tab having a rectangular cross section.
  • the receptacle terminal is of the type having a web and sidewalls which extend from the marginal side portions of the web. The sidewalls are formed inwardly towards each other and towards the web so that a terminal tab can be inserted between the surface of the web and the free edge portions of the sidewalls. Terminals of this general type are widely used for the reason that they can be mated with standard terminal tabs having a rectangular cross section.
  • the terminal receptacle described in U.S. Patent Number 3,976,348 has a tongue extending from the web at the tab receiving end of the receptacle.
  • the tongue is reversely bent at the tab receiving end and has an intermediate portion which engages an inserted tab.
  • the free end of the tongue extends beyond the receptacle section or portion of the terminal and is engageable so that it can be flexed towards the web.
  • the intermediate portion of the tongue has a locking lance which is received in an opening in the tab which locks the tab to the terminal receptacle upon insertion.
  • the tab can be disengaged by simply flexing the tongue towards the web portion of the terminal.
  • Terminal receptacles having locking features are being used to an increasing extent on a variety of types of electrical equipment.
  • Tab type terminals intended to be mated with receptacles as described above are manufactured in two standard widths, 4.7mm and 2.8mm.
  • receptacle terminals having locking lances have generally been manufactured for terminals having the greater width, for the reason that it is impractical to simply scale down or reduce the size of the receptacle and the locking lance so that the receptacle will accept a terminal tab having a width of 2.8mm.
  • U.S. Patent Number 4,534,613 is directed to the achievement of a receptacle terminal which has a locking lance and which is dimensioned to receive the smaller standard tab therein.
  • U.S. Patent Number 4,534,613 discloses a receptacle terminal which has a substantially flat web portion and contact springs which extend in one direction from the side edge portion of the web.
  • the contact springs extend inwardly over the web and have end portions which are spaced from the web and which engage an inserted tab.
  • a first pair of positioning ears are provided at the mating end of the terminal and extend inwardly of the web and towards each other.
  • a second pair of positioning ears are formed from the contact springs and extend towards each other.
  • the positioning ears locate a tab centrally on the web.
  • a locking lance is struck from the web and serves to lock an inserted tab to the receptacle. This configuration allows the receptacle to cooperate with the smaller standard tabs (2.8mm).
  • U.S. Patent Number 3,633,156 discloses a tab receptacle formed from a sheet metal blank comprising a receptacle portion of generally channel cross section having a base and a pair of longitudinally covering sides, each side being formed with an elongate aperture for receiving a tab between the base and sides of the apertures remote from the base.
  • U.S. Patent Number 3,183,471 discloses an electrical receptacle having a series of contact sections divided by a series of slots for easier insertion of the tab terminal into the receptacle.
  • the principle behind including a first locking means adjacent to the front mating end is to provide a low insertion force pre-assembled position, such that a worker can install the tabs into the pre-assembled position, and thereafter an assembly machine pushes the tabs into a fully locked position. It has been found that the insertion force into the first position is higher than what is desirable for the worker to push the tab into the first position. Secondly, when in the first position, the receptacle can have play on the tab as it is not well seated in the preassembled position. Finally due to the sheared surface at the rear of the receptacle, it is difficult for the workers to continuously push against this sheared end of the receptacle, without having their fingers and particularily their thumbs, becoming irritated.
  • the front section can include a lower insertion force thereby making it easier for insertion of the tab upon assembly.
  • the front pre-locking section includes a surface forward of a locking member, and has tab portions which are folded over to lie perpendicular to the insertion direction, which prevent the tab from pivoting in the receptacle while in the prelocked position.
  • the rear locking section includes folded over flap members forming a planar surface, against which assembly personell can push with their thumbs, as opposed to pushing against a sheared edge.
  • a receptacle terminal is shown generally at 2, and includes a mating receptacle section 4 and a wire connection shown at 6.
  • the mating connecting section 4 is separated into three distinct sections, a first locking member 8 proximate to front mating end 10, a main contacting section 12 and a second locking member 14.
  • the wire connecting section 6 is a conventional wire crimp in the preferred embodiment of the invention to include a crimp section shown generally at 16 and a strain relief section shown generally at 18. It should be understood that, while a wire crimping section is shown generally a 6, that an insulation displacement contact (IDC), or even a printed circuit board contact could be used in place of the wire crimp.
  • IDC insulation displacement contact
  • the electrical receptacle 2 includes a lower base portion 20 having two elongate ribs 22 and side walls shown at 24 which extend upwardly from marginal side edges of the lower base portion 20. Both of the side edges 24 are reversely bent about radiused portions 26 and are curled inwardly to form two side by side walls 30. As shown best in Figure 3, the wall 30 is separated by generally extending transverse slits 32 to form the various sections.
  • the front preassembled locking element 8 is relatively short in length and includes a sheared edge at 36 and a camming edge 38 for leading the tab below the locking element 39, which is also provided with a locking surface at 40.
  • the intermediate contacting section 12 includes a lead-in radiused surface at 42, a relief edge at 44, thereby forming contacting edges at 45 and 46.
  • a rear locking element 51 is formed integral with the rear locking section 14 as shown best in Figure 3.
  • the side walls 24 include integral tabs 50 which are folded towards one another to lie in a horizontal plane with respect to the base portion 20.
  • Each tab portion 50 define a tab receiving opening 52 between the base portion 20 and the tab portions 50.
  • the inner walls 30 include integral tab portions at 55 which are connected to the wall portions 30 via an integral web 56.
  • the tab portions 55 are folded outwardly to lie adjacent to the sheared end edge 61 of the receptacle thereby forming planer surfaces against which a force can be manually exerted, as best shown in Figure 4.
  • a bus strip is shown generally at 60 to include a lengthwise commoning bar 62 and a plurality of tab terminals or contacts 64.
  • the tab contacts include front mating edges 66 and locking apertures at 68.
  • the insertion of terminal 2 over tab 64 is essentially a two step process.
  • the first step consists of positioning a terminal 2 in alignment with the respective tab 64, and the terminal 2 is then partially inserted onto the tab 64, such that the tab is received in the receiving opening 52 of the terminal 2.
  • the leading end of the tab 64 engages the lead in surface 38 on the locking element 39 thereby moving the prelocking element 8 upwardly to a position where the entire locking element 39 drops into the aperture 68 of the tab.
  • rearwardly facing surface 40 prevents withdrawal of the tab holding the tab in place.
  • the tab is held from pivoting about the locking element 39 due to edge 36, and tabs 50 at the front face of the receptacle 2.
  • the insertion force due to overcoming the movement of the front locking element 8 is minimal, and can be carried out by hand.
  • a relief section at 44 defines distinct contact points at 45 and 46 for edge contact with the surface of the tab 64. Further continued movement rearwardly causes the front edge 66 of the tab to contact the lead in edge 49 of the rear locking member 14 moving the member 14 upwardly until rearwardly facing edge 51 overlies opening 68 whereupon the member 14 drops into the aperture 68 such that the edge of the aperture 68 abuts edge 51 on the rear locking member 14.
  • the receptacle contact 2 is made ergonomically better, by providing the tab portions at 55 which allows a flat planer surface against which the worker can press against, for example with his or her thumb. Secondly the insertion force of the receptacle over the tab, is reduced by making the preassembled latch portion 8 separate from the rest of the receptacle therefore requiring only deflection of a small length of the terminal wall portion 30. Finally, the tab is held relatively rigidly in its preassembled position, by being positioned between the base portion 20, against the edge 36, and being held downwardly by way of the tab portions 50. Furthermore, the roots 33 of the slots 32, and roots 35 of slot 34, extend outwardly to the sidewalls 24. This assures that each of the sections 4,12 and 14, can act independantly of each other during the insertion of the tab 64.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (8)

  1. Elektrische Buchsenklemme (2) für das Aufnehmen einer Kontaktnasenklemme (64), wobei die Buchsenklemme (2) aufweist: ein Eingriffsende (4) und ein Leiterverbindungsende (6), einen Basisabschnitt (20), der sich vom Eingriffsende (4) zum Leiterverbindungsende (6) erstreckt, wobei der Basisabschnitt (20) elastische Seitenwände (24) aufweist, die sich von dort aus erstrecken und nach innen in Richtung zueinander und in Richtung einer Innenfläche der Basis (20) ausgebildet sind, um zwei nebeneinanderliegende Wände (30) zu bilden, wobei die Seitenwände (24) freie Randabschnitte (46) aufweisen, die von einer Fläche des Basisabschnittes (20) einen Abstand aufweisen, der kleiner ist als die Dicke der Kontaktnasenklemme (64), wobei die freien Randabschnitte (46) der Seitenwände an der Kontaktnasenklemme (64) beim Einsetzen des Kontaktnasenabschnittes (64) in Eingriff kommen können, und wobei die elektrische Buchsenklemme (2) dadurch gekennzeichnet wird, daß:
       die Steckbuchse (2) Querschlitze (32, 34) aufweist, die drei einzelne Abschnitte begrenzen, einen vorderen Vorsperrabschnitt (8), einen dazwischenliegenden Kontaktabschnitt (12) und einen hinteren Sperrabschnitt (14), wobei die Schlitze (32, 34) in den zwei nebeneinanderliegenden Wänden (30) gebildet werden, und wobei der Vorsperrabschnitt (8) ein Sperrelement (39) aufweist, das mit einer Öffnung (68) in einer passenden Kontaktnasenklemme (64) zusammenwirken kann, und eine Fläche (36) der nebeneinanderliegenden Wände (30) vor dem Sperrelement (39) umfaßt, so profiliert, daß die passende Kontaktnasenklemme (64) an der Drehung gehindert wird, während sie sich in der vorgesperrten Position befindet.
  2. Anschlußklemme nach Anspruch 1, dadurch gekennzeichnet, daß der vordere Vorsperrabschnitt (8) außerdem Kontaknasenabschnitte (50) umfaßt, die abgekantet sind, damit sie senkrecht zur Richtung des Einsetzens liegen, und für das Einsetzen der Kontaktnase unterhalb der Kontaktnasenabschnitte (50) profiliert ist, um die Drehbewegung der Kontaktnase (64) zu verhindern, wenn sie sich in der vorgesperrten Position befindet.
  3. Anschlußklemme nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der vordere Vorsperrabschnitt (8) einen nach hinten liegenden Vorsprung (40) aufweist, der auf dem Sperrelement (39) gebildet wird.
  4. Anschlußklemme nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Sperrelement (39) eine Rampenfläche (38) umfaßt, die so profiliert ist, daß sie das Einführen des Kontaktnasenelementes (64) unterstützt.
  5. Anschlußklemme nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das vordere Ende des Kontaktabschnittes (12) eine Einführungsfläche (42) umfaßt, die so profiliert ist, daß die Kontaktnase beim Einsetzen über das Sperrelement (39) hinaus unterstützt wird.
  6. Anschlußklemme nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Kontaktabschnitt (12) Kontaktpunkte (45, 46) längs dessen Länge umfaßt.
  7. Anschlußklemme nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der hintere lange Abschnitt einen vorderen Einführungsabschnitt (49) und einen nach hinten liegenden Vorsprung (50) für die vollständig gesperrte Position umfaßt.
  8. Anschlußklemme nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der hintere Sperrabschnitt (14) abgekantete Klappenelemente (55) umfaßt, die eine planare Fläche bilden.
EP19930120452 1992-12-18 1993-12-17 Buchsenklemme mit Rückhaltemittel Expired - Lifetime EP0602681B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929226385A GB9226385D0 (en) 1992-12-18 1992-12-18 Receptacle terminal having retention means
GB9226385 1992-12-18

Publications (3)

Publication Number Publication Date
EP0602681A2 EP0602681A2 (de) 1994-06-22
EP0602681A3 EP0602681A3 (en) 1995-12-20
EP0602681B1 true EP0602681B1 (de) 1998-10-28

Family

ID=10726809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930120452 Expired - Lifetime EP0602681B1 (de) 1992-12-18 1993-12-17 Buchsenklemme mit Rückhaltemittel

Country Status (4)

Country Link
EP (1) EP0602681B1 (de)
DE (1) DE69321813T2 (de)
ES (1) ES2125297T3 (de)
GB (1) GB9226385D0 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4066978B2 (ja) * 2004-05-24 2008-03-26 住友電装株式会社 ファストン端子
US10256561B2 (en) * 2017-04-05 2019-04-09 Te Connectivity Corporation Terminal with ribbed contact spring
US10103469B1 (en) * 2017-04-05 2018-10-16 Te Connectivity Corporation Receptacle terminal with stable contact geometry
CN118487092A (zh) * 2023-02-13 2024-08-13 泰科电子连接印度私有有限公司 用于制造母电端子的方法和母电端子

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183471A (en) * 1963-02-08 1965-05-11 Thomas & Betts Corp Electrical terminal and connection
US3633156A (en) * 1969-04-29 1972-01-04 Amp Inc Tab receptacle
DE2238025A1 (de) * 1972-08-02 1974-02-21 Standard Elektrik Lorenz Ag Pruefstecker
US4534613A (en) * 1983-10-31 1985-08-13 Amp Incorporated Receptacle terminal having locking lance
GB8830165D0 (en) * 1988-12-23 1989-02-22 Amp Gmbh Receptacle terminal having retention means

Also Published As

Publication number Publication date
GB9226385D0 (en) 1993-02-10
DE69321813D1 (de) 1998-12-03
EP0602681A3 (en) 1995-12-20
DE69321813T2 (de) 1999-04-29
EP0602681A2 (de) 1994-06-22
ES2125297T3 (es) 1999-03-01

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