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EP0131118A1 - Multiple contact connector - Google Patents

Multiple contact connector Download PDF

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Publication number
EP0131118A1
EP0131118A1 EP84105683A EP84105683A EP0131118A1 EP 0131118 A1 EP0131118 A1 EP 0131118A1 EP 84105683 A EP84105683 A EP 84105683A EP 84105683 A EP84105683 A EP 84105683A EP 0131118 A1 EP0131118 A1 EP 0131118A1
Authority
EP
European Patent Office
Prior art keywords
contact
spring arm
housing
contact spring
connector according
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.)
Granted
Application number
EP84105683A
Other languages
German (de)
French (fr)
Other versions
EP0131118B1 (en
Inventor
Oswald Reuss
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.)
Preh GmbH
Original Assignee
Preh GmbH
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 Preh GmbH filed Critical Preh GmbH
Publication of EP0131118A1 publication Critical patent/EP0131118A1/en
Application granted granted Critical
Publication of EP0131118B1 publication Critical patent/EP0131118B1/en
Expired 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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB
    • 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
    • H01R13/434—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by separate resilient locking means on contact member, e.g. retainer collar or ring around contact member
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch

Definitions

  • the innovation is based on a multiple connector according to the preamble of claim 1.
  • Printed circuits e.g. consist of a ceramic substrate, have length or thickness tolerances due to production. In particular, circuit boards of this type are not completely flat, but rather have slight curvatures. In order to be able to guarantee a reliable contact connection even with critical tolerances with regard to the thickness, a relatively high contact pressure is chosen for the contact springs. In addition, the edge of such a circuit board is usually very sharp due to the manufacturing process, so that the conductor tracks or contact points are easily rubbed through, particularly when the circuit board is repeatedly plugged in, no more reliable contact is guaranteed.
  • the conductor tracks are very thin, so that here too there is a risk of damage if they are inserted several times.
  • a socket strip for force-free plug connection for printed circuit boards is already known from DE-OS 28 56 071.
  • a housing there are paired contact springs along a slot, which can be expanded against their spring force for insertion and removal of the circuit board. This is achieved with an adjustment device.
  • the contact spring ends are bent outwards and provided with an inclined surface. Between the inclined surface and the contact arm of the contact spring are arranged vertically adjustable elements. These elements can be moved by slide elements which can move longitudinally in the socket housing. If the elements are in their lower position, the contact springs are closest. In the upper position, the elements spread the contact springs so that the circuit board can be inserted without force.
  • the housing Due to the complex adjustment device, the housing consists of several parts.
  • a soldered in a circuit board terminal for a wire to be contacted is known from DE-OS 31 18 057.
  • a contact spring is accommodated in a chamber in a housing which is displaceable. Two legs of the contact spring are connected to one another by an essentially U-shaped apex web which has a push-through opening for the lead wire. In the area of the push-through opening, tongues are present, the lugs of which are designed as clamping lugs.
  • the contact spring is fastened in the housing by means of a locking tongue which is notched outwards and which projects into a slot in the housing. The narrowing of the push-through opening is achieved in that one leg of the contact spring can be moved towards one another relative to the other leg.
  • one leg has a projection which interacts with an inclined surface in the housing. If the housing is moved towards the printed circuit board, the inclined surface causes one leg to move towards the other. The result is that the push-through opening is reduced, so that the lead wire is clamped between the clamping lugs.
  • the object of the present innovation is to provide a simple and therefore inexpensive multiple connector according to the type mentioned, which is suitable for flexible film circuits in both S and P versions.
  • An S version is to be understood as a plug connection in which the plug direction is perpendicular to the printed circuit board. In the same way, the direction of insertion for the P version is parallel to the circuit board.
  • the multiple plug connection shown in perspective in FIG. 1 consists of an insulating material housing 3 and a flexible film circuit 1.
  • the one-piece rectangular housing made of plastic is flat and elongated. It has one longitudinal wall 6 and one side wall 5.
  • a continuous elongated slot 22 extends between the two longitudinal walls, into which the flexible film circuit 1 can be inserted up to a stop.
  • a plurality of chambers 4 are recessed in the housing, in which contact elements 7 are arranged.
  • the flexible film circuit 1 is made of a thin polyester or polycarbonate film, on which conductor tracks 2 are applied on one or both sides to the edge in a screen printing process.
  • polyester films are sold as "Mylar" films by Du Pont. Its thickness is approximately 100 ⁇ m. Their dimensional stability and their electricity modulus make these foils a stable support.
  • the film is also dimensionally stable at temperatures from 120 to 130 ° Celsius. This is important because the conductor pastes and printing inks must be cured at these temperatures.
  • notches 23 are left which extend inwards from the edge and whose depth corresponds approximately to the insertion depth of the flexible film circuit into the housing. These incisions together with the two side walls 5 form a kind of stop for the flexible film circuit.
  • FIGS. 2 and 3 show two different embodiments with regard to the use.
  • Figure 2 shows the so-called S version and Figure 3 shows the P version.
  • each contact element consists of a first contact spring arm 9, which is essentially flat, a second contact spring arm 10 and the terminal lug 8.
  • the connection lug 8 is bent at a right angle in the P version.
  • the contact element 7 is soldered into a printed circuit board 24. Since it is a multiple connector, several lugs are attached in a row next to each other in the circuit board.
  • the housing 3 is relatively displaceable.
  • the first contact spring arm 9 has a raised barb 11 which projects into a recess 12.
  • the recess 12 has a length corresponding to the relative stroke of the housing / contact element.
  • the first contact spring arm 9 is provided with an inward stamping 13.
  • the second contact spring arm 10 is produced by folding.
  • the terminal lug 8 is thus double-layered.
  • a solution is also conceivable in which the second contact spring arm is soldered, welded or otherwise fastened to the first.
  • the second contact spring arm is soldered, welded or otherwise fastened to the first.
  • materials adapted to the respective purpose can be used.
  • the second contact spring arm for example, should be made of a good spring material, since it may be subjected to greater mechanical stress.
  • the second contact spring arm 10 is guided away from the first contact spring arm 9 by a slight slope.
  • a bulge 14 is provided in the middle of its length. This bulge interacts with one or more projections 15 in the housing such that when the housing is moved, the distance of the second from the first contact spring arm is changed.
  • the bulge forms an end section 16 toward the free end. This end section is bent inwards and it has a specific profiling 17 at the free end at the insertion opening.
  • the counterpart of the profiling represents the stamping 13 of the first contact spring arm 9.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

1. Multiple contact connector for the stress-free connection of the edge of a flexible foil circuit (1) with a socket terminal strip soldered into a printed circuit (24), comprising an insulating material housing (3) in whose interconnection chambers (4) there are contact elements (7) which are soldered into the printed circuit (24) by their connecting lugs (8), wherein the insulating material housing is displaceable relative to the contact elements (7), characterised in that there is only a flat, rectangularly oblong, one-piece insulating material housing (3) whose two side walls (5) on the narrow side form the stop for indentations (23), in the flexible foil circuit (1), open towards the edge of the flexible foil circuit (1), and in that the contact element (7) is of U-shaped construction.

Description

Die Neuerung geht von einer Mehrfachsteckverbindung nach dem Oberbegriff des Anspruches 1 aus.The innovation is based on a multiple connector according to the preamble of claim 1.

Bei manchen gedruckten Schaltungen ist es wünschenswert, die Schaltungen kräftefrei in die Steckverbindungen einschieben zu können. Damit sollen die Leiterbahnen bzw. die Kontaktstellen auf den gedruckten Schaltungen, insbesondere bei mehrmaligem Stecken, vor einer Beschädigung geschützt werden. Wichtig ist dies bei gedruckten Schaltungen, bei denen ein hoher Kontaktdruck erforderlich ist, oder bei Schaltungen, bei denen die Leiterbahnen bzw. Kontaktstellen sehr dünn sind. Gedruckte Schaltungen, die z.B. aus einem Keramiksubstrat bestehen, weisen herstellungsbedingte Längen-oder Dickentoleranzen auf. Insbesondere sind derartige Schaltungsplatten nicht ganz plan, sondern sie besitzen geringe Krümmungen. Um auch bei kritischen Toleranzen hinsichtlich der Dicke eine sichere Kontaktverbindung gewährleisten zu können, wählt man für die Kontaktfedern einen relativ hohen Kontaktdruck. Darüberhinaus ist der Rand einer derartigen Schaltungsplatte meist herstellungsbedingt sehr scharfkantig, so daß die Leiterbahnen bzw. Kontaktstellen leicht durchgerieben werden, wobei insbesondere bei mehrmaligem Stecken der Schaltungsplatte kein sicherer Kontakt mehr gewährleistet ist.With some printed circuits it is desirable to be able to insert the circuits into the plug connections without force. This is intended to protect the conductor tracks or the contact points on the printed circuits, in particular if they are plugged in several times, from damage. This is important for printed circuits in which a high contact pressure is required or in circuits in which the conductor tracks or contact points are very thin. Printed circuits, e.g. consist of a ceramic substrate, have length or thickness tolerances due to production. In particular, circuit boards of this type are not completely flat, but rather have slight curvatures. In order to be able to guarantee a reliable contact connection even with critical tolerances with regard to the thickness, a relatively high contact pressure is chosen for the contact springs. In addition, the edge of such a circuit board is usually very sharp due to the manufacturing process, so that the conductor tracks or contact points are easily rubbed through, particularly when the circuit board is repeatedly plugged in, no more reliable contact is guaranteed.

Bei gedruckten Schaltungen in der Form von flexiblen Folienschaltungeh sind die Leiterbahnen sehr dünn, so daß auch hier bei mehrmaligem Stecken die Gefahr einer Beschädigung besteht.In the case of printed circuits in the form of flexible film circuits, the conductor tracks are very thin, so that here too there is a risk of damage if they are inserted several times.

Eine Buchsenleiste zur kräftefreien Steckverbindung für Leiterplatten ist bereits aus der DE-OS 28 56 071 bekannt. In einem Gehäuse sind längs eines Schlitzes paarweise angeordnete Kontaktfedern vorhanden, die zum Einsetzen und Herausziehen der Leiterplatte entgegen ihrer Federkraft spreizbar sind. Dies wird mit einer Verstelleinrichtung erreicht. Hierzu sind die Kontaktfederenden nach außen umgebogen und mit einer Schrägfläche versehen. Zwischen der Schrägfläche und dem Kontaktarm der Kontaktfeder sind vertikal verstellbare Elemente angeordnet. Diese Elemente können durch im Buchsengehäuse längsbewegliche Schieberelemente verschoben werden. Befinden sich die Elemente in ihrer unteren Position, so sind die Kontaktfedern sich am nächsten. In der oberen Position bewirken die Elemente ein Spreizen der Kontaktfedern, so daß die Leiterplatte kräftefrei eingesteckt werden kann. Bedingt durch die aufwendige Verstelleinrichtung besteht das Gehäuse aus mehreren Teilen.A socket strip for force-free plug connection for printed circuit boards is already known from DE-OS 28 56 071. In a housing there are paired contact springs along a slot, which can be expanded against their spring force for insertion and removal of the circuit board. This is achieved with an adjustment device. For this purpose, the contact spring ends are bent outwards and provided with an inclined surface. Between the inclined surface and the contact arm of the contact spring are arranged vertically adjustable elements. These elements can be moved by slide elements which can move longitudinally in the socket housing. If the elements are in their lower position, the contact springs are closest. In the upper position, the elements spread the contact springs so that the circuit board can be inserted without force. Due to the complex adjustment device, the housing consists of several parts.

Eine in eine Leiterplatte eingelötete Anschlußklemme für einen zu kontaktierenden Leitungsdraht ist aus der DE-OS 31 18 057 bekannt. In einem Gehäuse, das verschiebbar ist, ist in einer Kammer eine Kontaktfeder untergebracht. Zwei Schenkel der Kontaktfeder sind durch einen im wesentlichen U-förmigen Scheitelsteg miteinander verbunden, der eine Durchstecköffnung für den Leitungsdraht besitzt. Im Bereich der Durchstecköffnung sind Zungen vorhanden, deren Nasen als Klemmnasen ausgebildet sind. Die Befestigung der Kontaktfeder im Gehäuse erfolgt durch eine Arretierzunge, die nach außen ausgeklinkt ist und die in einen Schlitz des Gehäuses ragt. Die Verengung der Durchstecköffnung erzielt man dadurch, daß der eine Schenkel der Kontaktfeder relativ zum anderen Schenkel aufeinander zu bewegt werden kann. Hierzu hat ein Schenkel einen Vorsprung, der mit einer Schrägfläche im Gehäuse zusammenwirkt. Wird das Gehäuse auf die Leiterplatte zu bewegt, so bewirkt die Schrägfläche eine Bewegung des einen Schenkels auf den anderen zu. Die Folge ist, daß sich die Durchstecköffnung verkleinert, so daß der Leitungsdraht zwischen den Klemmnasen eingespannt ist.A soldered in a circuit board terminal for a wire to be contacted is known from DE-OS 31 18 057. A contact spring is accommodated in a chamber in a housing which is displaceable. Two legs of the contact spring are connected to one another by an essentially U-shaped apex web which has a push-through opening for the lead wire. In the area of the push-through opening, tongues are present, the lugs of which are designed as clamping lugs. The contact spring is fastened in the housing by means of a locking tongue which is notched outwards and which projects into a slot in the housing. The narrowing of the push-through opening is achieved in that one leg of the contact spring can be moved towards one another relative to the other leg. For this purpose, one leg has a projection which interacts with an inclined surface in the housing. If the housing is moved towards the printed circuit board, the inclined surface causes one leg to move towards the other. The result is that the push-through opening is reduced, so that the lead wire is clamped between the clamping lugs.

Aufgabe der vorliegenden Neuerung ist es, eine einfache und daher kostengünstige Mehrfachsteckverbindung nach der eingangs genannten Art zu schaffen, die sowohl in S- als auch in P-Ausführung für flexible Folienschaltungen geeignet ist.The object of the present innovation is to provide a simple and therefore inexpensive multiple connector according to the type mentioned, which is suitable for flexible film circuits in both S and P versions.

Unter einer S-Ausführung soll eine Steckverbindung verstanden werden, bei der die Steckrichtung senkrecht zur Leiterplatte liegt. Analog hierzu ist die Steckrichtung bei der P-Ausführung parallel zur Leiterplatte.An S version is to be understood as a plug connection in which the plug direction is perpendicular to the printed circuit board. In the same way, the direction of insertion for the P version is parallel to the circuit board.

Diese Aufgabe wird neuerungsgemäß durch die im kennzeichnenden Teil des Anspruches 1 angegebenen Merkmale gelöst.This object is achieved according to the invention by the features specified in the characterizing part of claim 1.

Weitere vorteilhafte Ausgestaltungen der Neuerung sind den Unteransprüchen zu entnehmen.Further advantageous refinements of the innovation can be found in the subclaims.

Die Neuerung wird nachfolgend anhand der Zeichnungen für mehrere Beispiele erläutert.The innovation is explained below with reference to the drawings for several examples.

Von den Figuren zeigt

  • Figur 1 eine perspektivische Ansicht einer Mehrfachsteckverbindung, teilweise geschnitten,
  • Figur 2 in Seitenansicht einen Schnitt durch die Mehrfachsteckverbindung (Ausführung S),
  • Figur 3 in Seitenansicht einen Schnitt durch eine Mehrfachsteckverbindung (AusführungP),
  • Figur 4 eine perspektivische Ansicht eines Kontaktelementes, (Ausführung P),
  • Figur 5 eine perspektivische Ansicht eines Kontaktelementes,
  • Figur 6 eine perspektivische Ansicht eines Kontaktelementes.
From the figures shows
  • FIG. 1 shows a perspective view of a multiple plug connection, partly in section,
  • FIG. 2 shows a side view of a section through the multiple plug connection (version S),
  • FIG. 3 is a side view of a section through a multiple plug connection (version P),
  • FIG. 4 shows a perspective view of a contact element (version P),
  • FIG. 5 shows a perspective view of a contact element,
  • Figure 6 is a perspective view of a contact element.

Die in Figur 1 perspektivisch dargestellte Mehrfachsteckverbindung besteht aus einem Isolierstoffgehäuse 3 und einer flexiblen Folienschaltung 1. Das einstückig rechteckige Gehäuse aus Kunststoff ist flach und länglich ausgebildet. Es besitzt je eine Längswand 6 und je eine Seitenwand 5. Zwischen den beiden Längswänden erstreckt sich ein durchgehender länglicher Schlitz 22, in den die flexible Folienschaltung 1 bis zu einem Anschlag eingesteckt werden kann. Ferner sind im Gehäuse eine Vielzahl von Kammern 4 ausgespart, in denen Kontaktelemente 7 angeordnet sind. Die flexible Folienschaltung 1 ist aus einer dünnen Polyester- oder Polykarbonat-Folie hergestellt, auf der Leiterbahnen 2 im Siebdruckverfahren bis zum Rand ein- oder beidseitig aufgebracht sind. Polyester-Folien werden beispielsweise als "Mylar"-Folien von Du Pont vertrieben. Ihre Stärke beträgt etwa 100 um . Ihre Formbeständigkeit und ihr Elektrizitätsmodul machen diese Folien zu einem stabilen Träger. Außerdem ist die Folie bei Temperaturen von 120 bis 130° Celsius formbeständig. Dies ist wichtig, da bei diesen Temperaturen die Aushärtung der Leiterpasten und Druckfarben erfolgen muß.The multiple plug connection shown in perspective in FIG. 1 consists of an insulating material housing 3 and a flexible film circuit 1. The one-piece rectangular housing made of plastic is flat and elongated. It has one longitudinal wall 6 and one side wall 5. A continuous elongated slot 22 extends between the two longitudinal walls, into which the flexible film circuit 1 can be inserted up to a stop. Furthermore, a plurality of chambers 4 are recessed in the housing, in which contact elements 7 are arranged. The flexible film circuit 1 is made of a thin polyester or polycarbonate film, on which conductor tracks 2 are applied on one or both sides to the edge in a screen printing process. For example, polyester films are sold as "Mylar" films by Du Pont. Its thickness is approximately 100 µm. Their dimensional stability and their electricity modulus make these foils a stable support. The film is also dimensionally stable at temperatures from 120 to 130 ° Celsius. This is important because the conductor pastes and printing inks must be cured at these temperatures.

In der flexiblen Folienschaltung sind Einschnitte 23 ausgespart, die sich vom Rand nach innen erstrecken, und deren Tiefe etwa der Einschubtiefe der flexiblen Folienschaltung in das Gehäuse entspricht. Diese Einschnitte bilden zusammen mit den beiden Seitenwänden 5 eine Art Anschlag für die flexible Folienschaltung.In the flexible film circuit, notches 23 are left which extend inwards from the edge and whose depth corresponds approximately to the insertion depth of the flexible film circuit into the housing. These incisions together with the two side walls 5 form a kind of stop for the flexible film circuit.

Die in die Kammern 4 des Gehäuses eingesetzten Kontaktelemente 7 sind U-förmig ausgebildet. In den Figuren 2 und 3 sind zwei verschiedene Ausführungsformen hinsichtlich des Einsatzes dargestellt. Figur 2 stellt die sogenannte S-Ausführung und Figur 3 die P-Ausführung dar. In beiden Fällen besteht jedoch jedes Kontaktelement aus einem ersten Kontaktfederarm 9, der im wesentlichen flach ausgebildet ist, einem zweiten Kontaktfederarm 10 und der Anschlußfahne 8. Zum Unterschied gegenüber der S-Ausführung ist die Anschlußfahne 8 bei der P-Ausführung in einem rechten Winkel abgebogen. Mit Hilfe dieser Anschlußfahne ist das Kontaktelement 7 in eine Leiterplatte 24 eingelötet. Da es sich um eine Mehrfachsteckverbindung handelt, sind mehrere Anschlußfahnen in einer Reihe nebeneinander in der Leiterplatte befestigt. Gegenüber den Kontaktelementen 7 ist das Gehäuse 3 relativ verschiebbar.The contact elements 7 inserted into the chambers 4 of the housing are U-shaped. FIGS. 2 and 3 show two different embodiments with regard to the use. Figure 2 shows the so-called S version and Figure 3 shows the P version. In both cases, however, each contact element consists of a first contact spring arm 9, which is essentially flat, a second contact spring arm 10 and the terminal lug 8. In contrast to the In the S version, the connection lug 8 is bent at a right angle in the P version. With the aid of this connecting lug, the contact element 7 is soldered into a printed circuit board 24. Since it is a multiple connector, several lugs are attached in a row next to each other in the circuit board. Compared to the contact elements 7, the housing 3 is relatively displaceable.

Um jedes Kontaktelement im Gehäuse festzulegen, hat der erste Kontaktfederarm 9 einen hochgestellten Widerhaken 11, der in eine Aussparung 12 ragt. Die Aussparung 12 weist eine Länge entsprechend dem Relativhub Gehäuse/ Kontaktelement auf. Am freien Ende ist der erste Kontaktfederarm 9 mit einer nach innen weisenden Durchprägung 13 versehen.In order to fix each contact element in the housing, the first contact spring arm 9 has a raised barb 11 which projects into a recess 12. The recess 12 has a length corresponding to the relative stroke of the housing / contact element. At the free end, the first contact spring arm 9 is provided with an inward stamping 13.

Wie aus den Figuren 4 bis 6 zu entnehmen ist, wird der zweite Kontaktfederarm 10 durch eine Faltung hergestellt. Die Anschlußfahne 8 ist damit doppellagig. Es ist auch eine Lösung denkbar, bei der der zweite Kontaktfederarm an dem ersten angelötet, angeschweißt oder sonstwie befestigt ist. Eine derartige Ausführungsform ist in den Figuren allerdings nicht dargestellt. Bei der zweistückigen Ausführung des Kontaktelementes kann man dem jeweiligen Verwendungszweck angepaßte Materialien nehmen. So sollte gerade der zweite Kontaktfederarm, da er unter Umständen mechanisch stärker beansprucht wird, aus einem guten Federmaterial bestehen.As can be seen from FIGS. 4 to 6, the second contact spring arm 10 is produced by folding. The terminal lug 8 is thus double-layered. A solution is also conceivable in which the second contact spring arm is soldered, welded or otherwise fastened to the first. However, such an embodiment is not shown in the figures. In the two-piece design of the contact element, materials adapted to the respective purpose can be used. The second contact spring arm, for example, should be made of a good spring material, since it may be subjected to greater mechanical stress.

Wie die Figuren 2 und 3 zeigen, ist der zweite Kontaktfederarm 10 durch eine leichte Schräge von dem ersten Kontaktfederarm 9 weggeführt. Etwa in der Mitte seiner Länge ist eine Auswölbung 14 vorgesehen. Diese Auswölbung wirkt mit einem oder mehreren Vorsprüngen 15 im Gehäuse zusammen derart, daß beim Verschieben des Gehäuses der Abstand des zweiten von dem ersten Kontaktfederarm verändert wird. Durch die Auswölbung wird zum freien Ende hin ein Endabschnitt 16 gebildet. Dieser Endabschnitt ist nach innen gebogen und er besitzt am freien Ende an der Einstecköffnung eine bestimmte Profilierung 17. Das Gegenstück der Profilierung stellt die Durchprägung 13 des ersten Kontaktfederarmes 9 dar.As FIGS. 2 and 3 show, the second contact spring arm 10 is guided away from the first contact spring arm 9 by a slight slope. About in A bulge 14 is provided in the middle of its length. This bulge interacts with one or more projections 15 in the housing such that when the housing is moved, the distance of the second from the first contact spring arm is changed. The bulge forms an end section 16 toward the free end. This end section is bent inwards and it has a specific profiling 17 at the free end at the insertion opening. The counterpart of the profiling represents the stamping 13 of the first contact spring arm 9.

Die verschiedenen Arten der Profilierung sind in den Figuren 4 bis 6 zusammenstellend zum Teil nochmals dargestellt. Der besseren übersicht wegen sind nur die Kontaktelemente dargestellt. Die Profilierungen selbst sind mit 17, 18 und 19 bezeichnet.The various types of profiling are shown again in part in FIGS. 4 to 6. For the sake of clarity, only the contact elements are shown. The profiles themselves are designated 17, 18 and 19.

BezugszeichenlisteReference symbol list

  • 1 flexible Folienschaltung1 flexible film circuit
  • 2 Leiterbahnen2 conductor tracks
  • 3 Isolierstoffgehäuse3 insulating housing
  • 4 Kammer4 chamber
  • 5 Seitenwand5 side wall
  • 6 Längswand6 longitudinal wall
  • 7 Kontaktelement7 contact element
  • 8 Anschlußfahne8 connecting lug
  • 9 erster Kontaktfederarm9 first contact spring arm
  • 10 zweiter Kontaktfederarm10 second contact spring arm
  • 11 Widerhaken11 barbs
  • 12 Aussparung12 recess
  • 13 Durchprägung13 embossing
  • 14 Auswölbung14 bulge
  • 15 Vorsprung15 head start
  • 16 Endabschnitt16 end section
  • 17 erste Profilierung17 first profiling
  • 18 zweite Profilierung18 second profiling
  • 19 dritte Profilierung19 third profiling
  • 22 Schlitz22 slot
  • 23 Einschnitte23 incisions
  • 24 Leiterplatte24 circuit board

Claims (10)

1. Mehrfachsteckverbindung zum kräftefreien Verbinden des Randes einer flexiblen Folienschaltung mit einer in eine gedruckte Schaltung eingelöteten Buchsenleiste, bestehend aus einem Isolierstoffgehäuse, in dessen miteinander verbundenen Kammern sich Kontaktelemente befinden, die mit ihren Anschlußfahnen in die gedruckte Schaltung eingelötet sind, wobei das Gehäuse gegenüber den Kontaktelementen relativ verschiebbar ist,
dadurch gekennzeichnet, daß nur ein flaches, rechteckig längliches und einstückiges Gehäuseteil (3) vorhanden ist, dessen beide Seitenwände (5) auf der Schmalseite den Anschlag bilden für die zum Rand der flexiblen Folienschaltung (1) hin offenen Einschnitte (23) in der flexiblen Folienschaltung (1) und daß das Kontaktelement (7) U-förmig ausgebildet ist.1.Multiple plug connection for the force-free connection of the edge of a flexible film circuit with a socket strip soldered into a printed circuit, consisting of an insulating housing, in the interconnected chambers of which there are contact elements which are soldered with their connecting lugs into the printed circuit, the housing opposite the Contact elements is relatively displaceable,
characterized in that only a flat, rectangularly elongated and one-piece housing part (3) is present, the two side walls (5) of which form the stop on the narrow side for the incisions (23) in the flexible which are open towards the edge of the flexible film circuit (1) Foil circuit (1) and that the contact element (7) is U-shaped. 2. Mehrfachsteckverbindung nach Anspruch 1, dadurch gekennzeichnet,
daß der erste Kontaktfederarm (9) des Kontaktelementes (7) flach ausgebildet ist.2. Multiple connector according to claim 1, characterized in
that the first contact spring arm (9) of the contact element (7) is flat. 3. Mehrfachsteckverbindung nach Anspruch 2, dadurch gekennzeichnet,
daß der erste Kontaktfederarm (9) einen aus der Ebene nach außen-abgewinkelten Widerhaken (11) besitzt, der in eine Aussparung (12) des Gehäuses (3) hineinragt.3. Multiple connector according to claim 2, characterized in
that the first contact spring arm (9) has a barb (11) angled outward from the plane, which protrudes into a recess (12) in the housing (3). 4. Mehrfachsteckverbindung nach Anspruch 3, dadurch gekennzeichnet,
daß die Länge der Aussparung (12) im Gehäuse (3) dem Relativhub des Gehäuses (3) zum Kontaktelement (7) entspricht.4. Multiple connector according to claim 3, characterized in
that the length of the recess (12) in the housing (3) corresponds to the relative stroke of the housing (3) to the contact element (7). 5. Mehrfachsteckverbindung nach Anspruch 2, dadurch gekennzeichnet,
daß das freie Ende des ersten Kontaktfederarmes (9) an der Einstecköffnung eine nach innen weisende Durchprägung (13) besitzt.5. Multiple connector according to claim 2, characterized in
that the free end of the first contact spring arm (9) at the insertion opening has an inward stamping (13). 6. Mehrfachsteckverbindung nach Anspruch 1, dadurch gekennzeichnet,
daß der vom ersten Kontaktfederarm (9) beabstandete zweite Kontaktfederarm (10) etwa mittig eine nach außen weisende, vorstehende Auswölbung (14) besitzt, die mit einem Vorsprung (15) des Gehäuses (3) derart zusammenwirkt, daß beim Entlanggleiten der Auswölbung (14) am Vorsprung (15) die Einstecköffnung verkleinert wird, so daß eine Kontaktierung zwischen Kontaktelement (7) und Leiterbahnen (2) der flexiblen Folienschaltung (1) erzielt wird.6. Multiple plug connection according to claim 1, characterized in
that the second contact spring arm (10), which is spaced apart from the first contact spring arm (9), has an outwardly projecting bulge (14), which cooperates with a projection (15) of the housing (3) in such a way that when the bulge (14 ) on the projection (15) the insertion opening is reduced, so that contact between the contact element (7) and conductor tracks (2) of the flexible film circuit (1) is achieved. 7. Mehrfachsteckverbindung nach Anspruch 1 und 6, dadurch gekennzeichnet,
daß der von der Auswölbung (14) sich bis zum freien Ende hin erstreckende Endabschnitt (16) einwärts gebogen ist.7. Multiple connector according to claim 1 and 6, characterized in
that the end portion (16) extending from the bulge (14) to the free end is bent inwards. 8. Mehrfachsteckverbindung nach Anspruch 7, dadurch gekennzeichnet,
daß das freie Ende des Endabschnittes (16) eine Profilierung (17, 18, 19) besitzt.8. Multiple connector according to claim 7, characterized in
that the free end of the end section (16) has a profile (17, 18, 19). 9. Mehrfachsteckverbindung nach Anspruch 1, dadurch gekennzeichnet,
daß das Kontaktelement zweistückig ausgebildet ist, wobei der erste Kontaktfederarm und die Anschlußfahne aus einem Material einstückig hergestellt.sind und der zweite Kontaktfederarm aus einem anderen Material mit dem ersten Kontaktfederarm an dem Verbindungsstück erster Kontaktfederarm/Anschlußfahne verbunden ist.9. Multiple connector according to claim 1, characterized in
that the contact element is formed in two pieces, the first contact spring arm and the connecting lug being made in one piece from one material and the second contact spring arm made of another material being connected to the first contact spring arm on the connecting piece of the first contact spring arm / connecting lug. 10. Mehrfachsteckverbindung nach Anspruch 1, dadurch gekennzeichnet,
daß das Kontaktelement (7) durch Faltung einstückig ausgebildet ist, wobei die Anschlußfahne (8) doppellagig ist.10. Multiple connector according to claim 1, characterized in
that the contact element (7) is formed in one piece by folding, the connecting lug (8) being double-layered.
EP19840105683 1983-06-30 1984-05-18 Multiple contact connector Expired EP0131118B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838318896 DE8318896U1 (en) 1983-06-30 1983-06-30 Multiple connector
DE8318896U 1983-06-30

Publications (2)

Publication Number Publication Date
EP0131118A1 true EP0131118A1 (en) 1985-01-16
EP0131118B1 EP0131118B1 (en) 1987-01-21

Family

ID=6754741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840105683 Expired EP0131118B1 (en) 1983-06-30 1984-05-18 Multiple contact connector

Country Status (3)

Country Link
EP (1) EP0131118B1 (en)
JP (1) JPS6041782A (en)
DE (1) DE8318896U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723615A (en) * 1985-08-23 1988-02-09 Mettler Instrumente Ag Precision balance
US5688149A (en) * 1995-03-30 1997-11-18 Molex Incorporated Electrical terminal and connector with improved retention means

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2543195Y2 (en) * 1992-04-28 1997-08-06 古河電気工業株式会社 FFC connector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474387A (en) * 1967-04-13 1969-10-21 Elco Corp Zero insertion force connector and contact therefor
GB1351896A (en) * 1971-03-22 1974-05-01 Bendix Corp Connectors for circuit boards
DE2707122A1 (en) * 1976-02-20 1977-09-01 Japan Aviation Electron Multiple spring loaded contacts block - has springy metal strips forced against inserted contacts by sliding plastics blocks
US4235500A (en) * 1978-11-08 1980-11-25 Trw Inc. Circuit connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474387A (en) * 1967-04-13 1969-10-21 Elco Corp Zero insertion force connector and contact therefor
GB1351896A (en) * 1971-03-22 1974-05-01 Bendix Corp Connectors for circuit boards
DE2707122A1 (en) * 1976-02-20 1977-09-01 Japan Aviation Electron Multiple spring loaded contacts block - has springy metal strips forced against inserted contacts by sliding plastics blocks
US4235500A (en) * 1978-11-08 1980-11-25 Trw Inc. Circuit connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723615A (en) * 1985-08-23 1988-02-09 Mettler Instrumente Ag Precision balance
US5688149A (en) * 1995-03-30 1997-11-18 Molex Incorporated Electrical terminal and connector with improved retention means

Also Published As

Publication number Publication date
EP0131118B1 (en) 1987-01-21
JPS6041782A (en) 1985-03-05
DE8318896U1 (en) 1983-12-08

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