EP0896388B1 - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
EP0896388B1
EP0896388B1 EP98114402A EP98114402A EP0896388B1 EP 0896388 B1 EP0896388 B1 EP 0896388B1 EP 98114402 A EP98114402 A EP 98114402A EP 98114402 A EP98114402 A EP 98114402A EP 0896388 B1 EP0896388 B1 EP 0896388B1
Authority
EP
European Patent Office
Prior art keywords
housing
film conductor
electrical connector
contact elements
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.)
Expired - Lifetime
Application number
EP98114402A
Other languages
German (de)
French (fr)
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EP0896388A2 (en
EP0896388A3 (en
Inventor
Fred Watermann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0896388A2 publication Critical patent/EP0896388A2/en
Publication of EP0896388A3 publication Critical patent/EP0896388A3/en
Application granted granted Critical
Publication of EP0896388B1 publication Critical patent/EP0896388B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural 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
    • H01R12/50Fixed connections
    • H01R12/59Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/592Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements

Definitions

  • the invention relates to an electrical connector with the Features specified in the preamble of claim 1.
  • Electrical foil conductors e.g. elastically deformable circuit board foils (FPC, flexible printed circuit) or ribbon cables (FFC, flexible flat cable) are wrapped in an insulating material embedded electrical conductors on that over connection surfaces provided in the end region of the film conductor to an electrical device or an electronic circuit be connected.
  • FPC flexible printed circuit
  • FFC flexible flat cable
  • insulating material embedded electrical conductors on that over connection surfaces provided in the end region of the film conductor to an electrical device or an electronic circuit be connected.
  • electrical connectors which a Insulation housing with an opening for the insertion of the foil conductor exhibit. Inside there are several to the Pads of the film conductor are aligned accordingly Contact elements arranged when inserting the film conductor contact with its pads.
  • the housing the connector can be on the component side of a circuit board can be placed as surface-mounted components.
  • the individual contact elements point out of the housing of the connector led out connections with soldered the conductor tracks arranged on the circuit board become.
  • To ensure adequate electrical contact between to manufacture the connection surfaces and the contact elements becomes an end of the film conductor when inserted with application a certain force clamped in the connector that the pads are pressed against the contact elements become.
  • the disadvantage here is that the pads the foil conductor is not always centered against the contact elements be pressed. If the foil conductor e.g. not far enough inserted into the connector, it can happen that on Foam conductor attacking forces a slight over time Displacement of the foil conductor and the connection surfaces in the connector housing so that the contact is interrupted in some places. Such connections are therefore not very reliable.
  • EP 0 214 830 describes an electrical connector with a Housing has become known in which specially shaped contact elements are arranged.
  • a foil conductor is on his end inserted into the housing with a V-shaped spring element provided that the pads of the foil conductor when inserted into the connector against the contact elements presses against.
  • a disadvantage of this prior art is that the Foil conductor in a separate process step with the Spring element must be connected, the spring element on the connector must be adapted. This will reduce manufacturing costs elevated. Furthermore, an accidental loosening of the foil conductor from the connector is not excluded. In addition, a slight decrease in the spring tension of the V-shaped spring element quickly breaks the contact between some contact elements and the foil conductor have as a consequence.
  • EP-A-0 388 216 describes a connector according to the Preamble of claim 1.
  • the electrical connector according to the invention with the characteristic Features of claim 1 avoids the prior art Technology occurring disadvantages and enables one as well inexpensive and simple electrical connection of a foil conductor to an electrical device or to one on one Circuit located on the substrate with high reliability at the same time the connection.
  • One arranged in the housing of the connector Locking element is advantageously only in a predetermined Insertion position of the film conductor unlocked, whereby a spring-loaded slidably mounted on the housing Snap member snaps into the housing and the pads of the foil conductor presses against the contact elements. This can advantageously ensure that the pads always pressed in the middle of the contact elements become.
  • a deterioration in the quality and security of the connection Contacting in the edge area of the connection surfaces can be ruled out.
  • the clamping member has a wedge-shaped base body which when snapping into the connector housing the foil conductor presses against the contact elements. This will make a Hooking or jamming of the clamping member when it snaps into place avoided.
  • the at least one locking member one protruding vertically from the rear wall of the housing Form part, which is deflectably attached to the rear wall is, the spring-loaded clamping member against the protruding part supports.
  • the part protruding from the rear wall as one provide elastically deflectable part that when retracting the film conductor and the clamping member back into his original position.
  • the free ends of the contact elements are also advantageous with an elastically deformable, bent towards the rear wall Provide section, the end of which is at an angle angled less than 90 ° to the connection surfaces of the foil conductor is.
  • an elastically deformable, bent towards the rear wall Provide section the end of which is at an angle angled less than 90 ° to the connection surfaces of the foil conductor is.
  • Fig. 2 shows a cross section through an embodiment an electrical connector according to the invention.
  • the connector has an approximately cuboid-shaped housing 3 made of plastic on, which is mounted with its underside on a substrate 1 is.
  • the substrate can be, for example, one with an electronic one Circuit provided circuit board on which the Connector is glued on.
  • the housing 2 of the connector at one On the long side, an opening 6, which accommodates a Foil conductor 2 is used.
  • strip-shaped contact elements running parallel to each other 23 arranged with a central section are attached to the underside of the housing 3.
  • a first one End portion 28 of the contact elements 23 is laterally from a the rear wall 14 of the housing 2 opposite the opening 6 led out and forms a connection, which with the Printed circuit board 1 arranged pads 29 is soldered.
  • the connections 29 of the contact elements 23 perpendicular from the underside of the housing 3 protrude and inserted into openings in the circuit board 1 and then on the underside of the circuit board to be soldered.
  • the arranged in the housing 2, second end portion 24 of the contact elements 23 bent over to the rear wall 14 in the shape of a semi-key or U. That to make an electrical contact with a pad 16 of the foil conductor 2 provided end 25 of each section 24 is at an angle less than Is 90 °, obliquely to the top and back 14 of the housing 3 angled towards.
  • the Clamping member 4 comprises a plate-shaped base body with a first main surface 19 and one opposite this second main surface 17.
  • the first main surface 19 lies on the Inner wall of the top of the housing.
  • the second main area 17 is inclined relative to the first main surface 19, so that a wedge arises, the thickness of which varies from the opening 6 to the the back 14 of the housing 3 facing front 18 of the Clamping member 4 tapers.
  • the clamping member 4 is in the housing 3 in a suitable manner in the direction of the back 14 stored. This can e.g.
  • a spring element 20 is arranged through which the clamping member 4 with one to the rear 14 of the housing 3 directed force is applied.
  • the spring elements 20 are designed as spiral springs that come with one end support the inside of a frame surrounding the opening 6 and the other end of each at a clamping member 4 provided in the area of the front 18, side pin 7 is attached. Due to the resilience of the springs 20 displaceable clamping member 4 with its inserted into the housing 3 Front 18 in the direction of arrow b in FIG.
  • the locking members 10 are perpendicular to the rear 14 of the housing 3 as two protruding parts formed toward the opening 6, the one have a rectangular cross section and at points 11 are attached elastically deflectable on the back 14.
  • the ends 14 of the parts 10 which are repellent are flattened and form a stop for the clamping member 4, the with the edge areas of its front side 18 on the flattened Ends of the parts 10 is present. If not in the housing 3 inserted film conductor 2, no torque acts on the Parts 10 and the clamping piece 4 is biased against the parts 10.
  • the clamping member 4 as shown in Fig. 2, at its end protruding from the opening 6 a vertical to the main surface 19 extending cap 5 for covering the opening 6.
  • the cap 5 can also be omitted if e.g. the opening 6 is designed to be narrow Prevent dirt from entering.
  • the cap 5 has one narrow opening 8 below the second main surface 17 of the Clamping member 4.
  • the film conductor 2 is with one End 15 pushed through the opening 8, with the top of the film conductor 2 to the second main surface 17 of the Clamping member 4 creates. It is important to ensure that the with the connection surfaces 16 provided side of the film conductor faces away from the main surface 17.
  • On the clamping member 4 provided lateral webs projecting from the main area 17 26, 27 serve to guide the foil conductor.
  • the parts 10 cannot be deflected elastically, but via perforations or notches on the Back 14 to determine which parts 10 cause when inserting the film conductor 2.
  • the connector is then only suitable for single use.
  • spiral springs 10 it is also possible to replace the spiral springs 10 other spring elements, e.g. to use an elastic rubber.
  • the spring elements can also be on another suitable Place inside or outside the connector housing be arranged.
  • the clamping piece 4 may be inserted of the foil conductor is only inserted as far into the opening 6 be that the front 18 is in front of the ends 25 and the film conductor between the front 18 and the Ends 25 can be pushed through.
  • the beveled ends 25 of the contact elements serve as a guide for the Foil conductor.
  • There is also a certain elasticity of the end area of the foil conductor is required, since this is during insertion is bent.
  • the shape of the locking members 10 can be modified so that this one with one over the Foil conductor extending projection are provided.

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen elektrischen Verbinder mit den im Oberbegriff des Anspruchs 1 angegebenen Merkmalen.The invention relates to an electrical connector with the Features specified in the preamble of claim 1.

Elektrische Folienleiter, wie z.B. elastisch verformbare Leiterplattenfolien (FPC, flexible printed circuit) oder Flachbandkabeln (FFC, flexible flat cable) weisen in eine Isolierstoffumhüllung eingebettete elektrische Leiter auf, die über im Endbereich des Folienleiters vorgesehene Anschlußflächen an ein elektrisches Gerät oder eine elektronische Schaltung angeschlossen werden. Zur elektrischen Anbindung des Folienleiters werden elektrische Verbinder eingesetzt, welche ein Isolierstoffgehäuse mit einer Öffnung zur Einführung des Folienleiters aufweisen. Im Gehäuseinneren sind mehrere zu den Anschlußflächen des Folienleiters korrespondierend ausgerichtete Kontaktelemente angeordnet, die beim Einführen des Folienleiters mit dessen Anschlußflächen kontaktieren. Das Gehäuse des Verbinders kann auf der Bestückungsseite einer Leiterplatte als oberflächenmontiertes Bauelemente aufgesetzt werden. Die einzelnen Kontaktelemente weisen hierfür aus dem Gehäuse des Verbinders herausgeführte Anschlüsse auf, die mit den auf der Leiterplatte angeordneten Leiterbahnen verlötet werden. Um einen ausreichenden elektrischen Kontakt zwischen den Anschlußflächen und den Kontaktelementen herzustellen, wird ein Ende des Folienleiters beim Einschieben unter Aufbringung einer gewissen Kraft in dem Verbinder derart festgeklemmt, daß die Anschlußflächen gegen die Kontaktelemente angepreßt werden. Nachteilig dabei ist, daß die Anschlußflächen der Folienleiter nicht immer mittig gegen die Kontaktelemente angedrückt werden. Wird der Folienleiter z.B. nicht weit genug in den Verbinder eingeschoben, kann es vorkommen, daß am Folienleiter angreifende Kräfte im Laufe der Zeit eine geringfügige Verschiebung des Folienleiters und der Anschlußflächen im Gehäuse des Verbinders bewirken, so daß der Kontakt an einigen Stellen unterbrochen wird. Derartige Verbindungen sind daher nicht sehr zuverlässig.Electrical foil conductors, e.g. elastically deformable circuit board foils (FPC, flexible printed circuit) or ribbon cables (FFC, flexible flat cable) are wrapped in an insulating material embedded electrical conductors on that over connection surfaces provided in the end region of the film conductor to an electrical device or an electronic circuit be connected. For electrical connection of the foil conductor electrical connectors are used, which a Insulation housing with an opening for the insertion of the foil conductor exhibit. Inside there are several to the Pads of the film conductor are aligned accordingly Contact elements arranged when inserting the film conductor contact with its pads. The housing the connector can be on the component side of a circuit board can be placed as surface-mounted components. For this purpose, the individual contact elements point out of the housing of the connector led out connections with soldered the conductor tracks arranged on the circuit board become. To ensure adequate electrical contact between to manufacture the connection surfaces and the contact elements, becomes an end of the film conductor when inserted with application a certain force clamped in the connector that the pads are pressed against the contact elements become. The disadvantage here is that the pads the foil conductor is not always centered against the contact elements be pressed. If the foil conductor e.g. not far enough inserted into the connector, it can happen that on Foam conductor attacking forces a slight over time Displacement of the foil conductor and the connection surfaces in the connector housing so that the contact is interrupted in some places. Such connections are therefore not very reliable.

Aus der EP 0 214 830 ist ein elektrischer Verbinder mit einem Gehäuse bekannt geworden, in dem speziell geformte Kontaktelemente angeordnet sind. Ein Folienleiter ist an seinem in das Gehäuse eingeführten Ende mit einem V-förmigen Federelement versehen, das die Anschlußflächen des Folienleiters beim Einschieben in den Verbinder gegen die Kontaktelemente anpreßt. Nachteilig bei diesem Stand der Technik ist, daß der Folienleiter in einem gesonderten Verfahrensschritt mit dem Federelement verbunden werden muß, wobei das Federelement an den Verbinder angepaßt sein muß. Hierdurch werden die Herstellungskosten erhöht. Weiterhin ist ein versehentliches Lösen des Folienleiters aus dem Verbinder nicht ausgeschlossen. Außerdem kann ein leichtes Nachlassen der Federspannkraft des V-förmigen Federelementes schnell eine Unterbrechung des Kontaktes zwischen einigen Kontaktelementen und dem Folienleiter zur Folge haben.EP 0 214 830 describes an electrical connector with a Housing has become known in which specially shaped contact elements are arranged. A foil conductor is on his end inserted into the housing with a V-shaped spring element provided that the pads of the foil conductor when inserted into the connector against the contact elements presses against. A disadvantage of this prior art is that the Foil conductor in a separate process step with the Spring element must be connected, the spring element on the connector must be adapted. This will reduce manufacturing costs elevated. Furthermore, an accidental loosening of the foil conductor from the connector is not excluded. In addition, a slight decrease in the spring tension of the V-shaped spring element quickly breaks the contact between some contact elements and the foil conductor have as a consequence.

EP-A-0 388 216 beschreibt einen Verbinder nach dem Oberbegriff des Anspruchs 1.EP-A-0 388 216 describes a connector according to the Preamble of claim 1.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße elektrische Verbinder mit den kennzeichnenden Merkmalen des Anspruchs 1 vermeidet die beim Stand der Technik auftretenden Nachteile und ermöglicht eine ebenso preiswerte wie einfache elektrische Anbindung eines Folienleiters an ein elektrisches Gerät oder an eine auf einem Substrat befindliche Schaltung bei gleichzeitig hoher Zuverlässigkeit der Verbindung. Ein im Gehäuse des Verbinders angeordnetes Sperrglied wird vorteilhaft erst in einer vorbestimmten Einschublage des Folienleiters entriegelt, wodurch ein an dem Gehäuse verschiebbar gelagertes federbeaufschlagtes Klemmglied in das Gehäuse einschnappt und die Anschlußflächen des Folienleiters gegen die Kontaktelemente andrückt. Hierdurch kann vorteilhaft sichergestellt werden, daß die Anschlußflächen immer mittig an die Kontaktelemente angedrückt werden. Eine die Qualität und Sicherheit der Verbindung verschlechternde Kontaktierung im Randbereich der Anschlußflächen kann ausgeschlossen werden. Ein umständliches Einführen des Klemmgliedes mit der Hand oder mit Hilfswerkzeugen ist nicht erforderlich. Außerdem wird erreicht, daß ein Herausziehen des Folienleiters aus dem Verbinder eine erhöhte Zugkraft erfordert.The electrical connector according to the invention with the characteristic Features of claim 1 avoids the prior art Technology occurring disadvantages and enables one as well inexpensive and simple electrical connection of a foil conductor to an electrical device or to one on one Circuit located on the substrate with high reliability at the same time the connection. One arranged in the housing of the connector Locking element is advantageously only in a predetermined Insertion position of the film conductor unlocked, whereby a spring-loaded slidably mounted on the housing Snap member snaps into the housing and the pads of the foil conductor presses against the contact elements. This can advantageously ensure that the pads always pressed in the middle of the contact elements become. A deterioration in the quality and security of the connection Contacting in the edge area of the connection surfaces can be ruled out. A laborious introduction the clamping member by hand or with auxiliary tools not mandatory. In addition, pulling out is achieved the foil conductor from the connector an increased tensile force requires.

Die in den Unteransprüchen angegebenen Merkmale ermöglichen vorteilhafte Ausbildungen und Weiterentwicklungen der Erfindung. So ist es vorteilhaft, wenn das Klemmglied in Einführungsrichtung des Folienleiters verschiebbar in dem Gehäuse angeordnet ist und eine den Kontaktelementen zugewandte Fläche aufweist und der Folienleiter zwischen diese Fläche des Klemmgliedes und den Kontaktelementen in das Gehäuse des Verbinders eingeschoben wird. Beim Einschnappen des Klemmgliedes in das Gehäuse läßt sich so sicherstellen, daß alle Anschlußflächen mit einer ausreichenden Kraft gegen die Kontaktelemente angedrückt werden.Allow the features specified in the subclaims advantageous developments and further developments of the invention. So it is advantageous if the clamping member in the direction of insertion of the film conductor slidably in the housing is arranged and a surface facing the contact elements has and the film conductor between this surface of the Clamping member and the contact elements in the housing of the connector is inserted. When the clamping member snaps into place in the housing can thus ensure that all connection surfaces with sufficient force against the contact elements be pressed.

Eine vorteilhafte Weiterbildung der Erfindung sieht vor, daß das Klemmglied einen keilförmigen Grundkörper aufweist, der beim Einschnappen in das Gehäuse des Verbinders den Folienleiter gegen die Kontaktelemente andrückt. Hierdurch wird ein Verhaken oder Verklemmen des Klemmgliedes beim Einschnappen vermieden.An advantageous development of the invention provides that the clamping member has a wedge-shaped base body which when snapping into the connector housing the foil conductor presses against the contact elements. This will make a Hooking or jamming of the clamping member when it snaps into place avoided.

Besonders einfach ist es, das wenigstens eine Sperrglied als einen von der Rückwand des Gehäuses senkrecht abstehendes Teil auszubilden, das auslenkbar an der Rückwand befestigt ist, wobei sich das federbeaufschlagte Klemmglied gegen das abstehende Teil abstützt. Auf einfache Weise wird so erreicht, daß beim Einführen des Folienleiters in die Öffnung des Verbindergehäuses das abstehende Teil erst in einer vorbestimmten Einschubtiefe in eine Entriegelungslage verschoben wird und das Klemmglied freigegeben wird. Besonders vorteilhaft ist es, das von der Rückwand abstehende Teil als ein elastisch auslenkbares Teil vorzusehen, daß sich beim Zurückziehen des Folienleiters und des Klemmgliedes wieder in seine ursprüngliche Lage gelangt.It is particularly simple to use the at least one locking member one protruding vertically from the rear wall of the housing Form part, which is deflectably attached to the rear wall is, the spring-loaded clamping member against the protruding part supports. In a simple way it is achieved that when inserting the film conductor into the opening the projecting part of the connector housing only in a predetermined Insertion depth shifted to an unlocking position and the clamping member is released. Particularly advantageous it is the part protruding from the rear wall as one provide elastically deflectable part that when retracting the film conductor and the clamping member back into his original position.

Ein an dem abtehenden Teil vorgesehener, in den Aufnahmeraum des Folienleiters eingreifender Vorsprung mit einer zur Rückwand des Gehäuses geneigten Gleitfläche ermöglicht das Wegschwenken des Teils beim Einführen des Folienleiters und die Freigabe des Klemmgliedes.One provided on the projecting part, in the receiving space of the foil conductor engaging projection with a to the rear wall of the housing inclined sliding surface allows swinging away of the part when inserting the foil conductor and the Release of the clamping member.

Weiterhin ist vorteilhaft, die freien Enden der Kontaktelemente mit einem elastisch verformbaren, zur Rückwand hin umgebogenen Abschnitt zu versehen, dessen Ende um einem Winkel kleiner 90° zu den Anschlußflächen des Folienleiters hin abgewinkelt ist. Beim Einschnappen des Klemmgliedes werden die Kontaktelemente gegen die Anschlußflächen vorgespannt. Durch die Spannkraft des gebogenen Abschnitts wird so die Zuverlässigkeit der Verbindung erhöht. Das sich widerhakenartig in Richtung der Anschlußflächen erstreckende Ende der Kontaktelemente erhöht die Zugkraft beim Herausziehen des Folienleiters und damit die Sicherheit der Verbindung. The free ends of the contact elements are also advantageous with an elastically deformable, bent towards the rear wall Provide section, the end of which is at an angle angled less than 90 ° to the connection surfaces of the foil conductor is. When the clamping member snaps into place Prestressed contact elements against the connection surfaces. By the resilience of the bent section becomes reliability the connection increased. That barbs in End of the contact elements extending in the direction of the connection surfaces increases the tensile force when pulling out the foil conductor and thus the security of the connection.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert. Es zeigt

  • Fig. 1 eine Draufsicht auf einen erfindungsgemäßen Verbinder entlang der Schnittlinie I-I in Fig. 2, von unten her gesehen,
  • Fig. 2 einen Querschnitt durch den Verbinder aus Fig. 1 entlang der Linie II-II in Fig. 1.
  • An embodiment of the invention is shown in the drawing and is explained in more detail in the following description. It shows
  • 1 is a plan view of a connector according to the invention along the section line II in Fig. 2, seen from below,
  • FIG. 2 shows a cross section through the connector from FIG. 1 along the line II-II in FIG. 1.
  • Beschreibung der AusführungsbeispieleDescription of the embodiments

    Fig. 2 zeigt einen Querschnitt durch ein Ausführungsbeispiel eines erfindungsgemäßen elektrischen Verbinders. Der Verbinder weist ein in etwa quaderförmiges Gehäuse 3 aus Kunststoff auf, das mit seiner Unterseite auf ein Substrat 1 montiert ist. Das Substrat kann beispielsweise eine mit einer elektronischen Schaltung versehene Leiterplatte sein, auf die der Verbinder aufgeklebt wird. Wie in den Figuren 1 und 2 zu erkennen ist, weist das Gehäuse 2 des Verbinders an seiner einen Längsseite eine Öffnung 6 auf, welche der Aufnahme eines Folienleiters 2 dient. Weiterhin sind im Innenraum des Gehäuses 2 parallel zueinander verlaufende, streifenförmige Kontaktelemente 23 angeordnet, die mit einem mittleren Abschnitt an der Unterseite des Gehäuses 3 befestigt sind. Ein erster Endabschnitt 28 der Kontaktelemente 23 ist seitlich aus einer der Öffnung 6 gegenüberliegenden Rückwand 14 des Gehäuses 2 herausgeführt und bildet je einen Anschluß, der mit auf der Leiterplatte 1 angeordneten Anschlußflächen 29 verlötet ist. In einem anderen in den Figuren nicht dargestellten Ausführungsbeispiel ist vorgesehen, daß die Anschlüsse 29 der Kontaktelemente 23 senkrecht von der Unterseite des Gehäuses 3 abstehen und in Durchbrüche der Leiterplatte 1 eingesetzt werden und anschließend auf der Unterseite der Leiterplatte verlötet werden. Wie in Fig. 2 gut zu erkennen ist, ist der im Gehäuse 2 angeordnete, zweite Endabschnitt 24 der Kontaktelemente 23 halbkeis- oder U-förmig zur Rückwand 14 hin umgebogen. Das zur Herstellung eines elektrischen Kontaktes mit einer Anschlußfläche 16 des Folienleiters 2 vorgesehene Ende 25 jedes Abschnitts 24 ist um einen Winkel, der kleiner als 90° ist, schräg zur Oberseite und zur Rückseite 14 des Gehäuses 3 hin abgewinkelt.Fig. 2 shows a cross section through an embodiment an electrical connector according to the invention. The connector has an approximately cuboid-shaped housing 3 made of plastic on, which is mounted with its underside on a substrate 1 is. The substrate can be, for example, one with an electronic one Circuit provided circuit board on which the Connector is glued on. As can be seen in Figures 1 and 2 is, the housing 2 of the connector at one On the long side, an opening 6, which accommodates a Foil conductor 2 is used. Furthermore, inside the housing 2 strip-shaped contact elements running parallel to each other 23 arranged with a central section are attached to the underside of the housing 3. A first one End portion 28 of the contact elements 23 is laterally from a the rear wall 14 of the housing 2 opposite the opening 6 led out and forms a connection, which with the Printed circuit board 1 arranged pads 29 is soldered. In another embodiment not shown in the figures it is provided that the connections 29 of the contact elements 23 perpendicular from the underside of the housing 3 protrude and inserted into openings in the circuit board 1 and then on the underside of the circuit board to be soldered. As can be clearly seen in FIG. 2, the arranged in the housing 2, second end portion 24 of the contact elements 23 bent over to the rear wall 14 in the shape of a semi-key or U. That to make an electrical contact with a pad 16 of the foil conductor 2 provided end 25 of each section 24 is at an angle less than Is 90 °, obliquely to the top and back 14 of the housing 3 angled towards.

    Wie in Fig. 1 und Fig. 2 dargestellt, ist in der Öffnung 6 ein Klemmglied 4 teilweise in das Gehäuse 3 eingeführt. Das Klemmglied 4 umfaßt einen plattenförmigen Grundkörper mit einer ersten Hauptfläche 19 und einer dieser gegenüberliegenden zweiten Hauptfläche 17. Die erste Hauptfläche 19 liegt an der Innenwandung der Gehäuseoberseite an. Die zweite Hauptfläche 17 ist gegenüber der ersten Hauptfläche 19 geneigt, so daß ein Keil entsteht, dessen Dicke sich von der Öffnung 6 zu der der Rückseite 14 des Gehäuses 3 zugewandten Frontseite 18 des Klemmgliedes 4 hin verjüngt. Das Klemmglied 4 ist in dem Gehäuse 3 in geeigneter Weise in Richtung der Rückseite 14 verschiebbar gelagert. Dies kann z.B. über nicht dargestellte, von dem Klemmglied 4 seitlich abstehende Stege oder Bolzen geschehen, die in Nuten eingreifen, welche in die Seitenwänden (21,22) des Gehäuses 3 eingelassen sind. Wie in Fig. 1 zu erkennen ist, ist weiterhin in dem Gehäuse 3 an jeder Seite des Klemmgliedes 4 ein Federelement 20 angeordnet, durch die das Klemmglied 4 mit einer zur Rückseite 14 des Gehäuses 3 gerichteten Kraft beaufschlagt wird. Die Federelemente 20 sind als Spiralfedern ausgebildet, die sich mit einem Ende an der Innenseite eines die Öffnung 6 umgebenden Rahmens abstützen und deren anderes Ende an jeweils einem am Klemmglied 4 im Bereich der Frontseite 18 vorgesehenen, seitlichen Zapfen 7 befestigt ist. Durch die Spannkraft der Federn 20 wird das verschiebbare Klemmglied 4 mit seiner in das Gehäuse 3 eingeschobenen Frontseite 18 in Richtung des Pfeils b in Fig. 1 gegen zwei Sperrglieder 10 angepreßt. Die Sperrglieder 10 sind als zwei senkrecht von der Rückseite 14 des Gehäuses 3 zur Öffnung 6 hin abstehende Teile ausgebildet, die einen rechteckförmigen Querschnitt aufweisen und an den Stellen 11 an der Rückseite 14 elastisch auslenkbar befestigt sind. Die von der Rückseite 14 abweisenden Enden der Teile 10 sind abgeflacht und bilden einen Anschlag für das Klemmglied 4, das mit den Randbereichen seiner Frontseite 18 an den abgeflachten Enden der Teile 10 anliegt. Bei nicht in das Gehäuse 3 eingeführtem Folienleiter 2 wirkt kein Drehmoment auf die Teile 10 ein und das Klemmstück 4 ist gegen die Teile 10 vorgespannt. Wie in Fig. 1 besonders gut zu erkennen ist, ist jedem Teil 10 ein in den Aufnahmeraum des Folienleiters 2 eingreifender seitlicher Vorsprung 12 mit einer zur Rückwand 14 geneigten Gleitfläche 13 angeformt.As shown in FIGS. 1 and 2, there is 6 in the opening a clamping member 4 partially inserted into the housing 3. The Clamping member 4 comprises a plate-shaped base body with a first main surface 19 and one opposite this second main surface 17. The first main surface 19 lies on the Inner wall of the top of the housing. The second main area 17 is inclined relative to the first main surface 19, so that a wedge arises, the thickness of which varies from the opening 6 to the the back 14 of the housing 3 facing front 18 of the Clamping member 4 tapers. The clamping member 4 is in the housing 3 in a suitable manner in the direction of the back 14 stored. This can e.g. about not shown, webs or bolts projecting laterally from the clamping member 4 happen, which engage in grooves, which in the side walls (21,22) of the housing 3 are embedded. As in Fig. 1 too can be seen is still in the housing 3 on each side of the clamping member 4, a spring element 20 is arranged through which the clamping member 4 with one to the rear 14 of the housing 3 directed force is applied. The spring elements 20 are designed as spiral springs that come with one end support the inside of a frame surrounding the opening 6 and the other end of each at a clamping member 4 provided in the area of the front 18, side pin 7 is attached. Due to the resilience of the springs 20 displaceable clamping member 4 with its inserted into the housing 3 Front 18 in the direction of arrow b in FIG. 1 pressed against two locking members 10. The locking members 10 are perpendicular to the rear 14 of the housing 3 as two protruding parts formed toward the opening 6, the one have a rectangular cross section and at points 11 are attached elastically deflectable on the back 14. The ends 14 of the parts 10 which are repellent are flattened and form a stop for the clamping member 4, the with the edge areas of its front side 18 on the flattened Ends of the parts 10 is present. If not in the housing 3 inserted film conductor 2, no torque acts on the Parts 10 and the clamping piece 4 is biased against the parts 10. As can be seen particularly well in FIG each part 10 into the receiving space of the foil conductor 2 engaging lateral projection 12 with one to the rear wall 14 inclined sliding surface 13 formed.

    Weiterhin weist das Klemmglied 4, wie in Fig. 2 dargestellt, an seinem aus der Öffnung 6 herausragenden Ende eine senkrecht zu der Hauptfläche 19 verlaufende Kappe 5 zur Abdeckung der Öffnung 6 auf. Die Kappe 5 kann aber auch entfallen, wenn z.B. die Öffnung 6 entsprechend schmal ausgelegt wird, um ein Eindringen von Schmutz zu verhindern. Die Kappe 5 weist eine schmale Öffnung 8 unterhalb der zweiten Hauptfläche 17 des Klemmgliedes 4 auf. Der Folienleiter 2 wird mit seinem einen Ende 15 durch die Öffnung 8 geschoben, wobei sich die Oberseite des Folienleiters 2 an die zweite Hauptfläche 17 des Klemmgliedes 4 anlegt. Dabei ist darauf zu achten, daß die mit den Anschlußflächen 16 versehene Seite des Folienleiters von der Hauptfläche 17 abgewandt ist. An dem Klemmglied 4 vorgesehene, von der Hauptfäche 17 abstehende seitliche Stege 26,27 dienen der Führung des Folienleiters. Beim weiteren Einschieben dringt der Folienleiter 2 in die Öffnung 6 des Gehäuses 3 ein und gelangt in den schmalen Spalt zwischen der Hauptfläche 17 des Klemmgliedes 4 und den Endabschnitten 25 der Kontaktelemente 23, bis das in die Öffnung 6 eingeführte Ende 15 des Folienleiters 2 an die Gleitflächen 13 der Vorsprünge 12 der Teile 10 anstößt. In dieser Position sind nun die Anschlußflächen 16, wie in Fig. 2 dargestellt, mittig über den Endabschnitten 25 der Kontaktelemente 23 positioniert. Beim weiteren Einschieben des Folienleiters 2 übt dieser über die Vorsprünge 12 ein Drehmoment auf die Teile 10 aus, so daß diese in Richtung des Pfeils a in Fig. 1 von der Frontseite 18 des Klemmgliedes 4 weggeschwenkt werden und das Klemmglied freigeben. Die Enden der Teile 10 gelangen beim Wegschwenken auf schräge Flächen 9 der im frontseitigen Bereich des Klemmgliedes 4 vorgesehenen Zapfen 7. Das in Richtung des Pfeils b in Fig. 1 vorgespannte Klemmglied schnappt nun ruckartig in das Gehäuse 3 ein. Dabei gleiten die Teile 10 an den Flächen 9 entlang nach außen, während die Frontseite 18 des Klemmstücks zur Rückseite 14 hin verschoben wird. Wie am besten in Fig. 2 zu erkennen ist, schiebt sich dabei der keilförmige Grundkörper des Klemmstücks 4 in den Spalt zwischen dem Folienleiter 2 und der Oberseite des Gehäuses 3 und preßt, bedingt durch die Keilform, die Anschlußflächen 16 des Folienleiters gegen die Enden 25 der Kontaktelemente 23 an. Der mit der halbkreisförmigen Biegung 24 versehene Abschnitt der Kontaktelemente 23 federt dabei in Richtung der Unterseite des Gehäuses 3 zurück, wodurch die Enden 25 gegen die Anschlußflächen 16 vorgespannt werden. Gleichzeitig wird die Öffnung 6 mit der Kappe 5 verschlossen. Dadurch, daß die in das Gehäuseinnere abstehenden Enden 25 der Kontaktelemente 23 mit einem Winkel kleiner 90° zu den Anschlußflächen 16 des Folienleiters 2 hin abgewinkelt sind, wird erreicht, daß sich die Enden 25 in den Anschlußflächen 16 widerhakenartig verkrallen, wenn Zugkräfte an dem aus dem Gehäuse hinausgeführten Ende des Folienleiters 2 angreifen, ohne daß das Klemmstück vorher zurückgezogen wurde. Nach Zurückziehen des Klemmgliedes 4 und Entnahme des Folienleiters 2 stellen sich die elastischen Teile 10 wieder auf, so daß der Verbinder mehrmals benutzt werden kann. Furthermore, the clamping member 4, as shown in Fig. 2, at its end protruding from the opening 6 a vertical to the main surface 19 extending cap 5 for covering the opening 6. The cap 5 can also be omitted if e.g. the opening 6 is designed to be narrow Prevent dirt from entering. The cap 5 has one narrow opening 8 below the second main surface 17 of the Clamping member 4. The film conductor 2 is with one End 15 pushed through the opening 8, with the top of the film conductor 2 to the second main surface 17 of the Clamping member 4 creates. It is important to ensure that the with the connection surfaces 16 provided side of the film conductor faces away from the main surface 17. On the clamping member 4 provided lateral webs projecting from the main area 17 26, 27 serve to guide the foil conductor. In the further Insert the film conductor 2 into the opening 6 of the Housing 3 and enters the narrow gap between the Main surface 17 of the clamping member 4 and the end sections 25 of the contact elements 23 until the one inserted into the opening 6 End 15 of the film conductor 2 to the sliding surfaces 13 of the projections 12 of the parts 10 abuts. Are in this position now the pads 16, as shown in Fig. 2, in the middle positioned over the end portions 25 of the contact elements 23. When the film conductor 2 is pushed in further, it exercises Torque to the parts 10 via the projections 12 from so that this in the direction of arrow a in Fig. 1 of the Front 18 of the clamping member 4 are pivoted away and that Release the clamping member. The ends of the parts 10 arrive at Swinging away on sloping surfaces 9 in the front area the pin 4 provided pin 7. That in the direction of the arrow b in Fig. 1 biased clamping member snaps now jerkily into the housing 3. The parts slide 10 along the faces 9 outwards, while the front 18 of the clamping piece is moved towards the rear 14. As can best be seen in FIG. 2, this shifts the wedge-shaped base body of the clamping piece 4 in the gap between the foil conductor 2 and the top of the housing 3 and, due to the wedge shape, presses the pads 16 of the foil conductor against the ends 25 of the contact elements 23 on. The section provided with the semicircular bend 24 the contact elements 23 springs in the direction of Bottom of the housing 3 back, causing the ends 25 against the pads 16 are biased. At the same time the opening 6 is closed with the cap 5. Because the ends 25 of the contact elements protruding into the housing interior 23 with an angle less than 90 ° to the pads 16 of the Foil conductor 2 are angled out, it is achieved that hook the ends 25 in the connecting surfaces 16 like barbs, if tensile forces on the led out of the housing Attack the end of the foil conductor 2 without the clamping piece was previously withdrawn. After withdrawing the Clamping member 4 and removal of the foil conductor 2 arise the elastic parts 10 again so that the connector can be used several times.

    Anders als in dem hier dargestellten Ausführungsbeispiel ist es auch möglich, die Teile 10 über Drehgelenke an den Positionen 11 und mit den Teilen 10 verbundene Schenkelfedern an der Rückwand 14 festzulegen.It is different from the embodiment shown here it is also possible to position the parts 10 via swivel joints at the positions 11 and leg springs connected to the parts 10 the rear wall 14 set.

    Weiterhin ist möglich, die Teile 10 nicht elastisch auslenkbar, sondern über Perforationen oder Einkerbungen an der Rückseite 14 festzulegen, welche ein Wegbrechen der Teile 10 beim Einschieben des Folienleiters 2 bewirken. Der Verbinder ist dann allerdings nur zur einmaligen Verwendung geeignet.It is also possible that the parts 10 cannot be deflected elastically, but via perforations or notches on the Back 14 to determine which parts 10 cause when inserting the film conductor 2. The connector is then only suitable for single use.

    Weiterhin ist es auch möglich, an Stelle der Spiralfedern 10 anderer Federelemente, wie z.B. ein elastisches Gummi zu verwenden. Die Federelemente können auch an einer anderen geeigneten Stelle innerhalb oder außerhalb des Gehäuses des Verbinders angeordnet sein.Furthermore, it is also possible to replace the spiral springs 10 other spring elements, e.g. to use an elastic rubber. The spring elements can also be on another suitable Place inside or outside the connector housing be arranged.

    Darüber hinaus ist es auch möglich, an Stelle des in Fig. 2 gezeigten keilförmigen Grundkörpers eine planparalle Platte zu verwenden. In diesem Fall darf das Klemmstück 4 vor Einführung des Folienleiters nur soweit in die Öffnung 6 eingeführt werden, daß die Frontseite 18 vor den Enden 25 liegt und der Folienleiter noch zwischen der Frontseite 18 und den Enden 25 hindurchgeschoben werden kann. Die abgeschrägten Enden 25 der Kontaktelemente dienen dabei als Führung für den Folienleiter. Außerdem ist eine gewisse Elastizität des Endbereichs des Folienleiters erforderlich, da dieser beim Einführen verbogen wird. Außerdem muß die Form der Sperrglieder 10 so abgeändert werden, daß diese mit einem sich über den Folienleiter erstreckenden Vorsprung versehen sind. Beim Einschnappen des Klemmgliedes 4 wird dann der Folienleiter 2 durch die aus der Fläche 17 und die Frontseite 18 gebildete Kante in Richtung der Kontaktelemente 25 nach unten gedrückt.In addition, it is also possible to replace the one shown in FIG shown wedge-shaped base body a plane-parallel plate to use. In this case, the clamping piece 4 may be inserted of the foil conductor is only inserted as far into the opening 6 be that the front 18 is in front of the ends 25 and the film conductor between the front 18 and the Ends 25 can be pushed through. The beveled ends 25 of the contact elements serve as a guide for the Foil conductor. There is also a certain elasticity of the end area of the foil conductor is required, since this is during insertion is bent. In addition, the shape of the locking members 10 can be modified so that this one with one over the Foil conductor extending projection are provided. When snapping the clamping member 4 then becomes the foil conductor 2 by the formed from the surface 17 and the front 18 Edge pressed down in the direction of the contact elements 25.

    Claims (10)

    1. Electrical connector, comprising a housing (3) having an opening (6) into which a film conductor (2) which is provided with electrical connecting surfaces (16) at one end can be inserted, with two or more contact elements (23) being arranged in the housing (3) and making contact with the connecting surfaces (16) during insertion of the film conductor, and with a clamping element (4) being arranged moveably on the housing (2), characterized in that the clamping element (4) is pressed by the stressing force of a spring element (20) at least against one locking element (10) which is mounted in the housing (2) such that it can move, with the film conductor (2) moving the locking element (10) to an unlocking position, which releases the clamping element (4), during insertion into the opening (6), such that the clamping element (4) is snapped into the housing (3) by the stressing force of the spring element (20), and presses the connecting surfaces (16) on the film conductor (2) against the contact elements (23).
    2. Electrical connector according to Claim 1, characterized in that, during insertion of the film conductor (2) into the opening (6), the at least one locking element (10) is unlocked when the film conductor (2) is in an inserted position, in which the contact elements (23) are centrally opposite the connecting surfaces (16) of the film conductor (2).
    3. Electrical connector according to Claim 1 or 2, characterized in that the clamping element (4) is mounted in the housing (3) such that it can be moved in the insertion direction of the film conductor (2) and is provided with at least one planar surface (17), and in that the film conductor (2) is pushed in between the surface (17) of the clamping element (4) and the contact elements (23) during insertion into the housing (3) .
    4. Electrical connector according to Claim 3, characterized in that the clamping element (4) comprises a wedge-shaped base body which is provided with a first main surface (19), which is guided on the housing, and with a second main surface (17), which is inclined with respect to it and faces the contact elements (23), and the thickness of the base body tapers from the opening (6) towards the rear face (14) of the housing (3) in the insertion direction of the film conductor (2).
    5. Electrical connector according to one of the preceding claims, characterized in that the at least one locking element (10) is in the form of a part which projects at right angles from the rear wall (14) of the housing (3) and is attached to the rear wall (14) such that it can be deflected.
    6. Electrical connector according to Claim 5, characterized in that the part (10) which projects at right angles from the rear wall (14) of the housing (3) is fixed on the rear wall (14) such that it can be deflected elastically.
    7. Electrical connector according to Claim 5, characterized in that, in an initial position before the insertion of the film conductor (2), the clamping element (4) is supported in a spring-loaded manner by a front face (18), which faces the rear wall (14), against that end of the part (10) which projects from the rear wall (14), and in that, during insertion of the film conductor (2), the part (10) is deflected by the end (15) of the film conductor (2).
    8. Electrical connector according to Claim 7, characterized in that the at least one part (10) has a side projection (12), which engages in the holding area of the film conductor (2) and has a sliding surface (13) which is inclined with respect to the rear wall, and in that that end (15) of the film conductor (2) which is inserted into the opening (6) makes contact with the sliding surface (13) and, when inserted further, exerts a torque on the part (10), so that the part (10) is pivoted away from the clamping element (4).
    9. Electrical connector according to one of the preceding claims, characterized in that the contact elements (23) which are fixed to the housing (3) have at their free end an elastically deformable section (24), which is bent towards the rear face (14) and whose end (25) is angled through an angle of less than 90º towards the connecting surfaces (16) on the film conductor.
    10. Electrical connector according to one of the preceding claims, characterized in that the housing (3) of the connector can be fitted as a component to a substrate (1) which is provided with a circuit, and in that connections (28), which are connected to the contact elements (23), of the connector are passed out of the housing (3) and are electrically conductively connected to connecting surfaces (29) of the circuit on the substrate (1).
    EP98114402A 1997-08-06 1998-07-31 Electrical connector Expired - Lifetime EP0896388B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19733983A DE19733983A1 (en) 1997-08-06 1997-08-06 Electrical connector
    DE19733983 1997-08-06

    Publications (3)

    Publication Number Publication Date
    EP0896388A2 EP0896388A2 (en) 1999-02-10
    EP0896388A3 EP0896388A3 (en) 1999-12-22
    EP0896388B1 true EP0896388B1 (en) 2003-11-26

    Family

    ID=7838130

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98114402A Expired - Lifetime EP0896388B1 (en) 1997-08-06 1998-07-31 Electrical connector

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    Country Link
    EP (1) EP0896388B1 (en)
    JP (1) JPH11121112A (en)
    DE (2) DE19733983A1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7052331B2 (en) 2003-09-25 2006-05-30 Maxwell Scott D Symmetrically adjustable corrosion-resistant battery cable connector

    Families Citing this family (5)

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    Publication number Priority date Publication date Assignee Title
    DE102004001410B4 (en) * 2003-01-16 2016-11-17 Te Connectivity Germany Gmbh Contact socket for contacting a ribbon cable with retaining recesses
    DE102005002901B4 (en) * 2005-01-21 2015-04-16 Bayerische Motoren Werke Aktiengesellschaft Connector for a ribbon cable
    JP2012195056A (en) * 2011-03-14 2012-10-11 Omron Automotive Electronics Co Ltd Connector, circuit board unit, circuit board device, and method for manufacturing circuit board device
    DE102011006867A1 (en) * 2011-04-06 2012-10-11 Robert Bosch Gmbh Connector for direct contacting on a printed circuit board
    JP5939029B2 (en) * 2012-05-21 2016-06-22 第一精工株式会社 Electric connector and signal transmission medium holding / removing method

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    EP0014511B1 (en) * 1979-02-12 1983-05-11 Bohdan Ulrich Zero insertion force connector for making a disconnectible electrical connexion
    JPH0665090B2 (en) * 1985-09-06 1994-08-22 FPC connector
    JPH0411346Y2 (en) * 1986-03-28 1992-03-19
    JPH0532945Y2 (en) * 1989-03-15 1993-08-23
    US5209672A (en) * 1989-03-18 1993-05-11 Kel Corporation Two-piece connector and method of press-connecting flat cables together
    DE3915611C1 (en) * 1989-05-12 1990-06-13 Stocko Metallwarenfabriken Henkels Und Sohn Gmbh & Co, 5600 Wuppertal, De Electrical plug and socket connector - has contact units with contact springs engaging socket suits
    TW325602B (en) * 1995-11-09 1998-01-21 Hirose Electric Co Ltd Electrical connector for flexible substrate
    DE29603678U1 (en) * 1996-02-29 1997-06-26 Bosch Gmbh Robert Electrical connector for foil conductors

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7052331B2 (en) 2003-09-25 2006-05-30 Maxwell Scott D Symmetrically adjustable corrosion-resistant battery cable connector

    Also Published As

    Publication number Publication date
    JPH11121112A (en) 1999-04-30
    EP0896388A2 (en) 1999-02-10
    DE19733983A1 (en) 1999-02-11
    EP0896388A3 (en) 1999-12-22
    DE59810244D1 (en) 2004-01-08

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