EP0024279B1 - Electrical contact clamp - Google Patents

Electrical contact clamp Download PDF

Info

Publication number
EP0024279B1
EP0024279B1 EP80100780A EP80100780A EP0024279B1 EP 0024279 B1 EP0024279 B1 EP 0024279B1 EP 80100780 A EP80100780 A EP 80100780A EP 80100780 A EP80100780 A EP 80100780A EP 0024279 B1 EP0024279 B1 EP 0024279B1
Authority
EP
European Patent Office
Prior art keywords
support piece
contact clip
electrical contact
carrier part
depth
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
Application number
EP80100780A
Other languages
German (de)
French (fr)
Other versions
EP0024279A1 (en
Inventor
Gerhard Robert Kell
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.)
Stocko Metallwarenfabriken Henkels and Sohn GmbH and Co
Original Assignee
Stocko Metallwarenfabriken Henkels and Sohn GmbH and Co
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 Stocko Metallwarenfabriken Henkels and Sohn GmbH and Co filed Critical Stocko Metallwarenfabriken Henkels and Sohn GmbH and Co
Publication of EP0024279A1 publication Critical patent/EP0024279A1/en
Application granted granted Critical
Publication of EP0024279B1 publication Critical patent/EP0024279B1/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/10Sockets for co-operation with pins or blades
    • H01R13/11Resilient sockets
    • H01R13/113Resilient sockets co-operating with pins or blades having a rectangular transverse section

Definitions

  • the invention relates to an electrical contact clip according to the preamble of claim 1.
  • the invention has for its object to provide an electrical contact clip for central electronics in automotive engineering or in energy technology, e.g. for busbars up to at least 45 A current consumption, which is designed as a fork spring in a support part, e.g. spring loaded in a metal conductor track or a plated-through printed circuit board, is then securely connected to the carrier part and which is both simple and inexpensive to manufacture.
  • the contact clip starting from the apex of the U-shaped curved yoke surface, has recesses with an opening dimension h and a depth t on both sides of the parallel spring arm, the opening dimension being approximately equal to the thickness s of the carrier part and the depth t is dimensioned such that the support part is engaged behind on both sides.
  • the contact clip is designed in such a way that it can also optionally be inserted into the carrier part offset by 90 °.
  • the contact clip 1 shown in FIGS. 1 to 3 is stamped in one piece from elastic, electrically conductive material, the base body of the clip 1 being rectangular in plan.
  • the base body is bent according to FIG. 2 about its central axis XX uniformly U-shaped with radius R to the yoke surface 2, from which spring arms 3 then extend in a first parallel manner, angled approximately at a distance a 1 from the apex A of the yoke surface inside each other and then angled evenly apart from each other at about a distance a 2 from the apex A, such that the plug-in area c forms at point B.
  • the spring arms 3 have recesses within their parallel region, with which the contact clip 1, after being inserted into the opening E of the carrier part 4, then engages over this in the region of the recesses.
  • the recesses are designed such that, starting from the apex A of the yoke surface 2 at a distance a 3 , they have an opening dimension h that extends in the direction of the plug-in area c and is approximately equal to the thickness s of the carrier part 4 and starting from the outer edges of the Width b of the clamp 1 has a depth t on both sides.
  • FIG 3 shows a top view of the contact clip 1 inserted in the carrier part 4, a bevel D of the square opening E of the carrier part 4 being visible in a partial cutout G.
  • This bevel D is provided uniformly at the corners of the opening E of the carrier part 4 and is designed such that the contact clip 1 is then fixed in the opening E of the carrier part 4 at point F of the bevel.
  • FIG. 4 shows a perspective view of a contact clip 1 inserted into a carrier part 4 and in FIG. 5 a plurality of carrier parts 4 are shown in perspective both with free openings E and with contact clips 1 inserted into them.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Die Erfindung bezieht sich auf eine elektrische Kontaktklammer entsprechend dem Oberbegriff des Anspruches 1.The invention relates to an electrical contact clip according to the preamble of claim 1.

In den bisher bekannten Anwendungsfällen, wo es das Problem höherer Stromaufnahme nur bis maximal 16 A gab, hat man das entweder mit Kon - taktelementen mit einliegender Stahlfeder gelöst oder aber entsprechend ausgebildete Kontaktelemente nach dem Einsetzen in ein Trägerteil, z.B. eine gedruckte Schaltungskarte, dann mit den Leiterbahnen des Trägerteiles, z.B. durch Verlöten kontaktsicher und nicht lösbar verbunden, um ein Abrutschen der Kontaktelemente von den Leiterbahnen zu verhindern.In the previously known applications, where there was only the problem of higher current consumption up to a maximum of 16 A, this was either solved with contact elements with an inserted steel spring or else appropriately designed contact elements after insertion into a carrier part, e.g. a printed circuit board, then with the conductor tracks of the carrier part, e.g. connected by soldering in a contact-safe and non-detachable manner to prevent the contact elements from slipping off the conductor tracks.

Es sind auch Ausführungen solcher Kontaktelemente bekannt, die an der der Stecköffnung der Elemente gegenüberliegenden Seite zusätzlich Ansätze aufweisen, die mit den Leiterbahnen der Trägerteile zur Herstellung und Sicherung der elektrischen Verbindung der Elemente mit dem Trägerteil vernietet werden.Designs of such contact elements are also known which additionally have lugs on the side opposite the plug-in opening of the elements, which are riveted to the conductor tracks of the carrier parts in order to produce and secure the electrical connection of the elements to the carrier part.

Von der Herstellung wie auch der zuverlässigen Kontaktierung sind diese Ausführungen jedoch für Zentralelektriken bei Stromaufnahmen grösser als 16 bis 45 A zu aufwendig und hinsichtlich der gelöteten oder genieteten Verbindungen elektrisch dann nicht unbedingt zuverlässig.From the production as well as the reliable contacting, however, these designs are too complex for central electrical systems with current consumption greater than 16 to 45 A and are not necessarily electrically reliable with regard to the soldered or riveted connections.

Der Erfindung liegt die Aufgabe zugrunde, eine elektrische Kontaktklammer für Zentralelektriken im Automobilbau oder auch in der Energietechnik, z.B. für Stromschienen bis mindestens 45 A Stromaufnahme, zu schaffen, die als Gabelfeder ausgebildet in ein Trägerteil, z.B. in eine metallene Leiterbahn oder eine durchkontaktierte gedruckte Schaltungskarte unter Vorspannung federnd eingesetzt, mit dem Trägerteil dann kontaktsicher verbunden ist und die sowohl einfach wie auch preisgünstig herstellbar ist.The invention has for its object to provide an electrical contact clip for central electronics in automotive engineering or in energy technology, e.g. for busbars up to at least 45 A current consumption, which is designed as a fork spring in a support part, e.g. spring loaded in a metal conductor track or a plated-through printed circuit board, is then securely connected to the carrier part and which is both simple and inexpensive to manufacture.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Kontaktklammer vom Scheitelpunkt der U-förmig gebogenen Jochfläche ausgehend in einem bestimmten Abstand beidseitig der parallel verlaufenden Federarme Ausnehmungen mit einem Öffnungsmass h und einer Tiefe t aufweist, wobei das Öffnungsmass etwa gleich der Stärke s des Trägerteiles ist und die Tiefe t derart bemessen ist, dass der Trägerteil je beidseitig hintergriffen wird.This object is achieved according to the invention in that the contact clip, starting from the apex of the U-shaped curved yoke surface, has recesses with an opening dimension h and a depth t on both sides of the parallel spring arm, the opening dimension being approximately equal to the thickness s of the carrier part and the depth t is dimensioned such that the support part is engaged behind on both sides.

In weiterer vorteilhafter Ausgestaltung der Erfindung ist die Kontaktklammer so ausgebildet, dass sie auch wahlweise um 90° versetzt in das Trägerteil einsetzbar ist.In a further advantageous embodiment of the invention, the contact clip is designed in such a way that it can also optionally be inserted into the carrier part offset by 90 °.

Ausführungsbeispiele der Erfindung werden anhand der Zeichnungen nachstehend beschrieben. Es zeigen:

  • Fig. 1 eine teilweise geschnittene Prinzipskizze der Kontaktklammer, eingesetzt in ein Trägerteil, in Ansicht,
  • Fig. 2 Kontaktklammer und Trägerteil in Seitenansicht,
  • Fig. 3 Kontaktklammer und Trägerteil in Draufsicht,
  • Fig. 4 Kontaktklammer in Trägerteil in Perspektive, und
  • Fig. 5 in Trägerteile eingesetzte Kontaktklammern in Perspektive.
Embodiments of the invention are described below with reference to the drawings. Show it:
  • 1 is a partially cut schematic diagram of the contact clip, inserted into a carrier part, in view,
  • 2 contact clip and carrier part in side view,
  • 3 contact clip and carrier part in plan view,
  • Fig. 4 contact clip in the carrier part in perspective, and
  • Fig. 5 used in carrier parts contact clips in perspective.

Die in den Fig. 1 bis 3 gezeigte Kontaktklammer 1 ist aus elastischem, elektrisch leitendem Material einstückig gestanzt, wobei der Grundkörper der Klammer 1 im Grundriss rechteckig gestaltet ist. Der Grundkörper ist entsprechend Fig. 2 um seine Mittelachse X-X gleichmässig U-förmig mit Radius R zur Jochfläche 2 gebogen, von wo aus dann zuerst parallel verlaufend sich Federarme 3 erstrecken, die etwa im Abstand a1 ab dem Scheitelpunkt A der Jochfläche abgewinkelt gleichmässig nach innen zueinander und dann etwa im Abstand a2 ab dem Scheitelpunkt A abgewinkelt gleichmässig nach aussen auseinander verlaufen, derart, dass sich im Punkt B der Steckbereich c bildet.The contact clip 1 shown in FIGS. 1 to 3 is stamped in one piece from elastic, electrically conductive material, the base body of the clip 1 being rectangular in plan. The base body is bent according to FIG. 2 about its central axis XX uniformly U-shaped with radius R to the yoke surface 2, from which spring arms 3 then extend in a first parallel manner, angled approximately at a distance a 1 from the apex A of the yoke surface inside each other and then angled evenly apart from each other at about a distance a 2 from the apex A, such that the plug-in area c forms at point B.

Wie der Fig. 1 zu entnehmen ist, weisen die Federarme 3 innerhalb ihres parallel verlaufenden Bereiches Ausnehmungen auf, mit denen die Kontaktklammer 1 nach dem Einsetzen in die Öffnung E des Trägerteiles 4, dieses dann im Bereich der Ausnehmungen übergreift. Die Ausnehmungen sind so gestaltet, dass sie, ausgehend vom Scheitelpunkt A der Jochfläche 2 im Abstand a3 beginnend, ein Öffnungsmass h aufweisen, das sich in Richtung Steckbereich c erstreckt und etwa gleich der Stärke s des Trägerteiles 4 ist und ausgehend von den Aussenkanten der Breite b der Klammer 1 beidseitig eine Tiefe t aufweisen.As can be seen from FIG. 1, the spring arms 3 have recesses within their parallel region, with which the contact clip 1, after being inserted into the opening E of the carrier part 4, then engages over this in the region of the recesses. The recesses are designed such that, starting from the apex A of the yoke surface 2 at a distance a 3 , they have an opening dimension h that extends in the direction of the plug-in area c and is approximately equal to the thickness s of the carrier part 4 and starting from the outer edges of the Width b of the clamp 1 has a depth t on both sides.

Fig. 3 zeigt in Draufsicht die Kontaktklammer 1 in Trägerteil 4 eingesetzt, wobei in einem Teilausschnitt G eine Abschrägung D der quadratischen Öffnung E des Trägerteiles 4 sichtbar ist. Diese Abschrägung D ist gleichmässig an den Ecken der Öffnung E des Trägerteiles 4 vorgesehen und so ausgelegt, dass im Punkt F der Abschrägung die Kontaktklammer 1 nach dem Einsetzen dann in der Öffnung E des Trägerteiles 4 fixiert ist.3 shows a top view of the contact clip 1 inserted in the carrier part 4, a bevel D of the square opening E of the carrier part 4 being visible in a partial cutout G. This bevel D is provided uniformly at the corners of the opening E of the carrier part 4 and is designed such that the contact clip 1 is then fixed in the opening E of the carrier part 4 at point F of the bevel.

Fig. 4 zeigt in perspektivischer Darstellung eine in ein Trägerteil 4 eingesetzte Kontaktklammer 1 und in Fig. 5 ist in Perspektive eine Mehrzahl von Trägerteilen 4 sowohl mit freien Öffnungen E wie mit in diese eingesetzten Kontaktklammern 1 dargestellt.FIG. 4 shows a perspective view of a contact clip 1 inserted into a carrier part 4 and in FIG. 5 a plurality of carrier parts 4 are shown in perspective both with free openings E and with contact clips 1 inserted into them.

Claims (2)

1. An electrical contact clip (1) of metal strip for electric power plant in the automotive industry or in energy technology, e.g. for bus bars upto at least 45 A current capacity, formed as a forked spring with its U-bent cross-piece surface (2) resiliently inserted under prestressing into a corresponding, preferably square aperture (E) in a support piece (4), e.g. a metal conductor track or a through-contacted printed circuit board, then connected to the support piece in a contact- ensuring manner, characterised in that the contact clip (1) comprises, in both of the parallel-resilient arms (3) at a distance (33) from the crest A of the U-bent cross-piece surface (2), recesses having an opening dimension h and a depth t, the opening dimension h being approximately equal to the thickness s of the support piece (4), and the depth being so determined that the support piece (4) is engaged reawards on both sides.
2. An electrical contact clip as claimed in claim 1, characterised in that the contact clip (1) can also be inserted into the support piece (4), for example displaced at choice through 90°.
EP80100780A 1979-08-25 1980-02-15 Electrical contact clamp Expired EP0024279B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7924272U 1979-08-25
DE7924272U DE7924272U1 (en) 1979-08-25 1979-08-25 Electrical contact clip

Publications (2)

Publication Number Publication Date
EP0024279A1 EP0024279A1 (en) 1981-03-04
EP0024279B1 true EP0024279B1 (en) 1983-06-08

Family

ID=6706861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100780A Expired EP0024279B1 (en) 1979-08-25 1980-02-15 Electrical contact clamp

Country Status (2)

Country Link
EP (1) EP0024279B1 (en)
DE (1) DE7924272U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19945674B4 (en) * 1998-09-25 2009-12-17 The Whitaker Corp., Wilmington Central electrics for a motor vehicle and connection contact for such a central electrics
FR2844105B1 (en) * 2002-08-27 2006-11-17 Framatome Connectors Int CONNECTION DEVICE HAVING A SURROUNDED SPRING CONTACT
KR20170002451U (en) 2015-12-29 2017-07-07 한국단자공업 주식회사 Busbar having fork terminal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346172A (en) * 1970-02-21 1974-02-06 Amp Inc Electrical connector
US3737837A (en) * 1971-05-06 1973-06-05 Elmatic Corp Snap-in type lamp bulb socket
US3937553A (en) * 1974-11-13 1976-02-10 Palmer Industries Ltd. Electrical terminal connector
US4084146A (en) * 1976-10-13 1978-04-11 Ford Aerospace & Communications Corporation Fuse assembly

Also Published As

Publication number Publication date
DE7924272U1 (en) 1979-11-15
EP0024279A1 (en) 1981-03-04

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