EP0606241B1 - Plug connector with short-circuit bridge - Google Patents

Plug connector with short-circuit bridge Download PDF

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Publication number
EP0606241B1
EP0606241B1 EP92918399A EP92918399A EP0606241B1 EP 0606241 B1 EP0606241 B1 EP 0606241B1 EP 92918399 A EP92918399 A EP 92918399A EP 92918399 A EP92918399 A EP 92918399A EP 0606241 B1 EP0606241 B1 EP 0606241B1
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EP
European Patent Office
Prior art keywords
contact
spring
plug connector
connector according
limb
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
EP92918399A
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German (de)
French (fr)
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EP0606241A1 (en
Inventor
Richard Dipl.-Ing. Flieger (Fh)
Ernst Liebich
Rony Houdenhove Van
Miroslav Dipl.-Ing. Smoravek
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Siemens AG
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Siemens AG
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Publication of EP0606241A1 publication Critical patent/EP0606241A1/en
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Publication of EP0606241B1 publication Critical patent/EP0606241B1/en
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    • 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
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7031—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity
    • H01R13/7032—Shorting, shunting or bussing of different terminals interrupted or effected on engagement of coupling part, e.g. for ESD protection, line continuity making use of a separate bridging element directly cooperating with the terminals

Definitions

  • the invention relates to a connector with a housing made of insulating material with contact chambers in which contact elements with a connection area and a contact area are arranged in a row and at least one contact spring is provided in a row parallel thereto, each contact spring connecting two contact elements as a short-circuit bridge and consists of a spring base lying against the inside of an outer wall of the housing and at least one freely resilient contact leg, which is provided with an expression directed towards the contact elements as a contact point and is connected at one end to the spring base via a cross-sectionally U-shaped bend, and with a plug body consisting of insulating material, the one with a row of contact pins or knives intended for insertion into the contact elements and in a row parallel thereto for each short-circuit bridge with one made of insulating material existing interrupter element is formed, which lifts a contact spring from the interconnected contact elements when coupling the housing and plug body.
  • a connector is known in which contact members are provided in the second contact chamber row to form a normally closed contact in the non-coupled state of the housing and connector body, which are each formed with at least one bent spring leg and each with at least one spring legs of the contact elements arranged in the first contact chamber row project into the second row of contact chambers.
  • the normally closed contact is separated in that an insulating pin of the connector body when coupling the housing and plug body, the spring legs of the contact elements and the contact elements are pressed apart in opposite directions at the abutting, bent contact points.
  • EP-A-389 779 discloses a multi-pole plug-in device with a short-circuit bridge. This consists of a contact spring with a freely resilient contact leg, which is connected to a spring base via a U-shaped bend. The short-circuit bridge is actuated via an interrupter, which is inserted into the device from the side of the U-shaped bend and is pushed onto the entire contact leg until the contact point at the free end of the contact leg is lifted off the contact parts.
  • the invention has for its object to improve the spring action of the short-circuit bridge in a connector of the type mentioned.
  • the spring work is done exclusively by the short circuit bridge.
  • the two-leg design of the short-circuit bridge in cooperation with the connection of the two spring legs via a U-shaped bend results in an extension of the spring legs, which leads to a significant increase in the permissible spring travel. Since the position of the contact point on the freely resilient contact leg can be optimally selected and the actuation of the short-circuit bridge is carried out by the interrupter element of the plug body at the free end of the contact leg, a low actuating force with high effective contact force is achieved for the contact opening by the interrupter element to be inserted. The result of such a connector is an improved spring action and an improved tolerance compensation.
  • the inventive design of the short-circuit bridge also allows direct contacting at the transition area of the contact elements between the connection and contact area.
  • the contact is thus made at the most favorable point in an area with a low contact resistance.
  • the rear side of the transition area facing the shape of the contact leg expediently runs e.g. embossed flush with the back of the contact area of a contact element. This is particularly advantageous if the contact element is inserted into the housing of the connector after the short-circuit bridge and its rear side slides over the shape of the contact leg of the short-circuit bridge.
  • the contact leg of the contact spring is approximately twice as long as the spring base. It is particularly advantageous if the shape of the contact leg is arranged about a third of the total length of the contact leg from its free end.
  • the contact leg of the contact spring is offset somewhat towards the spring base by an offset at the transition to the U-shaped bend.
  • An offset on the contact leg increases the distance between the contact leg and the connection region of the contact element opposite it and gives greater security against electrical bridging.
  • the contact leg is preferably provided in its center with a longitudinal slot extending in the longitudinal direction of the leg and extending from the free end of the contact leg.
  • a longitudinal slot extending in the longitudinal direction of the leg and extending from the free end of the contact leg.
  • the contact spring is arranged together with two contact elements as short-circuit unit in a common contact chamber of the housing.
  • the outer wall of the housing is formed with two lateral guide grooves for the spring base and the contact chamber with a centrally arranged support rib to fix the position of the contact spring.
  • the connector consists of a housing 1 made of insulating material, which has a plurality of adjacent contact chambers 2 for contact elements 3 and contact springs 4, two contact elements 3 and a contact spring 4 being arranged in a contact chamber 2, which connects the two contact elements as a short-circuit bridge.
  • a housing 1 made of insulating material, which has a plurality of adjacent contact chambers 2 for contact elements 3 and contact springs 4, two contact elements 3 and a contact spring 4 being arranged in a contact chamber 2, which connects the two contact elements as a short-circuit bridge.
  • the contact elements 3 are arranged in a first row within the contact chambers and consist of contact elements customary in such connectors with a connection area 5, a contact area 6 and a transition area 7 between the connection and contact area.
  • the contact springs 4 for the short-circuit bridges are arranged in a row parallel to the first row and are formed and arranged in a manner described in more detail later.
  • the connector - as shown in FIG. 3 - Another connector body 30 made of insulating material, which is designed with a series of contact pins or knives 31 intended for insertion into the contact elements 3 and in a parallel row for each short-circuit bridge 4 with an interrupter element 32 made of insulating material, which is used for the coupling of Housing and connector body lifts a contact spring 4 from the interconnected contact elements 3.
  • the housing 1 is still surrounded by an outer housing 33 made of insulating material.
  • the short-circuit bridges each consist of a two-leg contact spring 4 with a spring base 8 and at least one contact leg 9, which is connected at one end to the spring base via a cross-sectionally U-shaped bend 10.
  • the spring base 8 is mounted on the inside of an outer wall 11 of the housing 1.
  • the contact leg 9 can spring freely and is provided with a configuration 12 directed towards the contact elements 3 as a contact point, which is U-shaped or V-shaped in cross section and is in direct contact with the transition region 7 of the contact elements 3.
  • this transition area is designed in a suitable manner as a contact point, the rear side of the transition area facing the shape 12 of the contact leg 9, for example by embossing, being flush with the rear side of the contact area 6 of a contact element 3.
  • the expression 12 is arranged about a third of the total length of the contact leg from its free end 13, the contact leg 9 being approximately twice as long as the spring base 8.
  • the surface between the contact legs 9a, 9b at the end of the slot serves as a pressure surface 16 for pressing the spring base into two lateral guide grooves 17, 18 on the inside of the outer wall 11 of the housing 1 up to a stop 19 which is centered on a contact chamber 2 arranged double T-shaped support rib 20 is formed.
  • an additional detent spring 21 made of spring steel is placed on the spring base and engages with an extended spring tab 22 in an opening 23 of the outer wall 11 of the housing 1.
  • the spring base 8 is provided with two recesses 24, 25, in which the detent spring 21 is fastened with two bending tabs.
  • the spring tab 22 is provided below the spring base 8 to the side of the U-shaped bend 10.
  • an L-shaped bracket 26 (FIGS. 6 to 8) made of insulating material is provided as a protective cover on the housing and is fastened to the housing 1, for example, by latching means, the long leg 27 of the cover 26 with its outer surface being an insertion aid for insertion forms a contact element in the contact chamber.
  • a support wall 28 for the interrupter element 32 is provided in the contact chamber, which extends close to the shape 12.
  • the outer wall 11 of the housing is also provided with an outwardly open recess 29 for the free spring end 13 of the contact limbs pressed to the side by the interrupter element 32 when the housing and plug are coupled.

Abstract

The short-circuit bridge for the connection of two contact components (3) is a forked contact spring (4) with a spring base (8), at least one contact tine (9) and a U-bend (10). The contact tine (9) is free to spring and, with a projection (12) directly contacts the contact components (3) in the transition region (7). Thus the spring action is performed solely by the short-circuit bridge. The shape of the spring and the position of the contact point ensure the best possible spring action with low actuating forces.

Description

Die Erfindung betrifft einen Steckverbinder mit einem aus Isoliermaterial bestehenden Gehäuse mit Kontaktkammern, in denen in einer Reihe Kontaktelemente mit einem Anschlußbereich und einem Kontaktbereich angeordnet sind und in einer hierzu parallelen Reihe mindestens eine Kontaktfeder vorgesehen ist, wobei jede Kontaktfeder als Kurzschlußbrücke jeweils zwei Kontaktelemente miteinander verbindet und aus einer an der Innenseite einer Außenwand des Gehäuses anliegenden Federbasis und mindestens einem frei federnden Kontaktschenkel besteht, der mit einer auf die Kontaktelemente hin gerichteten Ausprägung als Kontaktstelle versehen und an einem Ende über eine im Querschnitt U-förmige Biegung mit der Federbasis verbunden ist, und mit einem aus Isoliermaterial bestehenden Steckerkörper, der mit einer Reihe von zum Einstecken in die Kontaktelemente bestimmten Kontaktstiften oder -messern und in einer hierzu parallelen Reihe für jede Kurzschlußbrücke mit einem aus Isoliermaterial bestehenden Unterbrecherelement ausgebildet ist, welches bei der Kupplung von Gehäuse und Steckerkörper eine Kontaktfeder von den miteinander verbundenen Kontaktelementen abhebt.The invention relates to a connector with a housing made of insulating material with contact chambers in which contact elements with a connection area and a contact area are arranged in a row and at least one contact spring is provided in a row parallel thereto, each contact spring connecting two contact elements as a short-circuit bridge and consists of a spring base lying against the inside of an outer wall of the housing and at least one freely resilient contact leg, which is provided with an expression directed towards the contact elements as a contact point and is connected at one end to the spring base via a cross-sectionally U-shaped bend, and with a plug body consisting of insulating material, the one with a row of contact pins or knives intended for insertion into the contact elements and in a row parallel thereto for each short-circuit bridge with one made of insulating material existing interrupter element is formed, which lifts a contact spring from the interconnected contact elements when coupling the housing and plug body.

Durch das DE-U-90 10 565 ist ein Steckverbinder bekannt, bei dem zur Bildung eines Ruhekontaktes im nicht gekuppelten Zustand von Gehäuse und Steckerkörper in der zweiten Kontaktkammerreihe Kontaktorgane vorgesehen sind, welche jeweils mit wenigstens einem abgeknickten Federschenkel ausgebildet sind und jeweils mit wenigstens einem in die zweite Kontaktkammerreihe ragenden Federschenkel der in der ersten Kontaktkammerreihe angeordneten Kontaktelemente zusammenwirken. Bei diesem bekannten Steckverbinder wird der Ruhekontakt dadurch aufgetrennt, daß ein Isolierstift des Steckerkörpers bei der Kupplung von Gehäuse und Steckerkörper die Federschenkel der Kontaktorgane und der Kontaktelemente an den aneinanderliegenden, abgeknickten Kontaktstellen in entgegengesetzte Richtungen auseinanderdrückt.From DE-U-90 10 565 a connector is known in which contact members are provided in the second contact chamber row to form a normally closed contact in the non-coupled state of the housing and connector body, which are each formed with at least one bent spring leg and each with at least one spring legs of the contact elements arranged in the first contact chamber row project into the second row of contact chambers. In this known connector, the normally closed contact is separated in that an insulating pin of the connector body when coupling the housing and plug body, the spring legs of the contact elements and the contact elements are pressed apart in opposite directions at the abutting, bent contact points.

Aus der EP - A - 389 779 ist eine vielpolige Steckvorrichtung mit einer Kurzschlußbrücke bekannt. Diese besteht aus einer Kontaktfeder mit einem frei federnden Kontaktschenkel, der über eine U-förmige Biegung mit einer Federbasis verbunden ist. Die Betätigung der Kurzschlußbrücke erfolgt über einen Unterbrecher, der von der Seite der U-förmigen Biegung in die Vorrichtung eingeführt und soweit auf den ganzen Kontaktschenkel aufgeschoben wird, bis die am freien Ende des Kontaktschenkels liegende Kontaktstelle von den Kontaktteilen abgehoben ist.EP-A-389 779 discloses a multi-pole plug-in device with a short-circuit bridge. This consists of a contact spring with a freely resilient contact leg, which is connected to a spring base via a U-shaped bend. The short-circuit bridge is actuated via an interrupter, which is inserted into the device from the side of the U-shaped bend and is pushed onto the entire contact leg until the contact point at the free end of the contact leg is lifted off the contact parts.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Steckverbinder der eingangs genannten Art die Federwirkung der Kurzschlußbrücke zu verbessern.The invention has for its object to improve the spring action of the short-circuit bridge in a connector of the type mentioned.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß

  • a) die Ausprägung unmittelbar an einem als Kontaktbereich ausgebildeten Übergangsbereich zwischen dem Anschlußbereich und dem Kontaktbereich von zwei Kontaktelementen kontaktierend anliegt,
  • b) daß zwischen der Ausprägung und dem freien Ende des Kontaktschenkels ein Hebelarm gebildet ist und
  • c) daß das Unterbrecherelement am freien Ende des Kontaktschenkels in das Gehäuse eingeführt und auf den Hebelarm geschoben wird, so daß dieser und das freie Ende bei der Kupplung zur Seite gedrückt werden und die Ausprägung von dem Übergangsbereich abgehoben wird.
This object is achieved in that
  • a) the expression is in direct contact with a transition area between the connection area and the contact area of two contact elements,
  • b) that a lever arm is formed between the expression and the free end of the contact leg and
  • c) that the interrupter element is inserted at the free end of the contact leg into the housing and pushed onto the lever arm, so that this and the free end are pressed aside during the coupling and the expression is lifted off the transition area.

Bei einem derartigen Steckverbinder wird die Federarbeit ausschließlich von der Kurzschlußbrücke verrichtet. Dabei ergibt sich durch die zweischenklige Ausbildung der Kurzschlußbrücke im Zusammenwirken mit der Verbindung der beiden Federschenkel über eine U-förmige Biegung eine Verlängerung der Federschenkel, die zu einer deutlichen Vergrößerung des zulässigen Federweges führt. Da sich die Lage des Kontaktpunktes am frei federnden Kontaktschenkel optimal wählen läßt und die Betätigung der Kurzschlußbrücke durch das Unterbrecherelement des Steckerkörpers am freien Ende des Kontaktschenkels erfolgt, wird für die Kontaktöffnung durch das einzuschiebende Unterbrecherelement eine niedrige Betätigungskraft bei hoher wirksamer Kontaktkraft erreicht. Es ergibt sich bei einem derartigen Steckverbinder somit eine verbesserte Federwirkung und ein verbesserter Toleranzausgleich. Die erfindungsgemäße Ausbildung der Kurzschlußbrücke gestattet darüber hinaus eine direkte Kontaktierung am Übergangsbereich der Kontaktelemente zwischen dem Anschluß- und Kontaktbereich. Die Kontaktierung erfolgt somit an der günstigsten Stelle in einem Bereich mit einem niedrigen Übergangswiderstand. Außerdem ist es durch eine derartige direkte Kontaktierung möglich, für die Kurzschlußkontaktierung in geometrisch identischer Form die schon für normale Verwendung bei Steckverbindern vorgesehenen Kontaktelemente einzusetzen, d.h. für die Kurzschlußkontaktierung können die üblichen Kontaktelemente unverändert weiter benutzt werden.In such a connector, the spring work is done exclusively by the short circuit bridge. The two-leg design of the short-circuit bridge in cooperation with the connection of the two spring legs via a U-shaped bend results in an extension of the spring legs, which leads to a significant increase in the permissible spring travel. Since the position of the contact point on the freely resilient contact leg can be optimally selected and the actuation of the short-circuit bridge is carried out by the interrupter element of the plug body at the free end of the contact leg, a low actuating force with high effective contact force is achieved for the contact opening by the interrupter element to be inserted. The result of such a connector is an improved spring action and an improved tolerance compensation. The inventive design of the short-circuit bridge also allows direct contacting at the transition area of the contact elements between the connection and contact area. The contact is thus made at the most favorable point in an area with a low contact resistance. In addition, it is possible through such direct contacting for short-circuit contacting to use the contact elements already provided for normal use in connectors in a geometrically identical form, ie the usual contact elements can continue to be used unchanged for short-circuit contacting.

Zweckmäßigerweise verläuft bei einem erfindungsgemäßen Steckverbinder die der Ausprägung des Kontaktschenkels zugekehrte Rückseite des Übergangsbereiches z.B. durch eine Prägung bündig fluchtend mit der Rückseite des Kontaktbereiches eines Kontaktelementes. Dies ist insbesondere dann von Vorteil, wenn das Kontaktelement nach der Kurzschlußbrücke in das Gehäuse des Steckverbinders eingeführt wird und dabei mit seiner Rückseite über die Ausprägung des Kontaktschenkels der Kurzschlußbrücke gleitet.In the case of a connector according to the invention, the rear side of the transition area facing the shape of the contact leg expediently runs e.g. embossed flush with the back of the contact area of a contact element. This is particularly advantageous if the contact element is inserted into the housing of the connector after the short-circuit bridge and its rear side slides over the shape of the contact leg of the short-circuit bridge.

Bei einer im Hinblick auf die Federwirkung, insbesondere bezüglich Steckkraft und Kontaktkraft, vorteilhaften Ausführungsform mit guter Hebelwirkung ist der Kontaktschenkel der Kontaktfeder etwa doppelt so lang wie die Federbasis. Dabei ist es besonders günstig, wenn die Ausprägung des Kontaktschenkels etwa ein Drittel der Gesamtlänge des Kontaktschenkels von dessen freien Ende entfernt angeordnet ist.In an embodiment with good leverage which is advantageous with regard to the spring action, in particular with regard to plug-in force and contact force, the contact leg of the contact spring is approximately twice as long as the spring base. It is particularly advantageous if the shape of the contact leg is arranged about a third of the total length of the contact leg from its free end.

In vorteilhafter Weise ist der Kontaktschenkel der Kontaktfeder durch eine Kröpfung am Übergang zur U-förmigen Biegung etwas in Richtung auf die Federbasis zu versetzt. Eine Kröpfung am Kontaktschenkel vergrößert den Abstand zwischen dem Kontaktschenkel und dem ihm gegenüberliegenden Anschlußbereich des Kontaktelementes und gibt eine größere Sicherheit gegen elektrische Brückenbildung.Advantageously, the contact leg of the contact spring is offset somewhat towards the spring base by an offset at the transition to the U-shaped bend. An offset on the contact leg increases the distance between the contact leg and the connection region of the contact element opposite it and gives greater security against electrical bridging.

Bei einem erfindungsgemäßen Steckverbinder ist in bevorzugter Weise der Kontaktschenkel in seiner Mitte mit einem sich in Schenkellängsrichtung erstreckenden, von dem freien Ende des Kontaktschenkels ausgehenden Längsschlitz versehen. Dadurch ergibt sich ein Doppelkontakt der Kurzschlußbrücke mit einer Verdopplung der Luft- und Kriechstrecke, wobei hier durch den Längsschlitz zwei Kontaktschenkel gebildet werden, die an zwei Kontaktelementen anliegen. Bei einer derartigen Ausführung der Kontaktfeder ist es zweckmäßig, wenn sich der Längsschlitz über die U-förmige Biegung hinaus bis zur Federbasis erstreckt. In diesem Fall kann das Schlitzende als Druckfläche zum Eindrücken der Federbasis genutzt werden.In the case of a connector according to the invention, the contact leg is preferably provided in its center with a longitudinal slot extending in the longitudinal direction of the leg and extending from the free end of the contact leg. This results in a double contact of the short circuit bridge with one Doubling of the clearance and creepage distance, whereby two contact legs are formed by the longitudinal slot, which abut two contact elements. With such a design of the contact spring, it is expedient if the longitudinal slot extends beyond the U-shaped bend to the spring base. In this case, the slot end can be used as a pressure surface for pressing in the spring base.

Zur Verankerung der Kurzschlußbrücke im Gehäuse eines Steckverbinders ist es im Hinblick auf die bei solchen Kontaktfedern möglichen sehr kleinen Abmessungen vorteilhaft, wenn auf die Federbasis eine zusätzliche Rastfeder aus Federstahl aufgesetzt ist, die mit einem ausgestellten Federlappen in eine Öffnung der Außenwand des Gehäuses einrastet. Dabei ist es zweckmäßig, wenn der Federlappen unterhalb der Federbasis seitlich der U-förmigen Biegung liegend vorgesehen ist. Hierdurch läßt sich eine großflächige, im Hinblick auf die Aufnahme der Reaktionskräfte vorteilhafte Auflage der Federbasis erreichen.To anchor the short-circuit bridge in the housing of a connector, it is advantageous in view of the very small dimensions that are possible with such contact springs if an additional detent spring made of spring steel is placed on the spring base and engages with an extended spring tab in an opening in the outer wall of the housing. It is expedient if the spring tab is provided below the spring base lying to the side of the U-shaped bend. In this way, a large-area support of the spring base, which is advantageous with regard to the absorption of the reaction forces, can be achieved.

Im Hinblick auf einen mögichst kompakten Aufbau und eine möglichst kompakte Anordnung einer aus zwei Kontaktelementen und einer Kurzschlußbrücke bestehenden Kurzschlußkontaktierung ist es vorteilhaft, wenn die Kontaktfeder zusammen mit zwei Kontaktelementen als Kurzschlußeinheit jeweils in einer gemeinsamen Kontaktkammer des Gehäuses angeordnet ist. In diesem Fall ist zur Lagefixierung der Kontaktfeder die Außenwand des Gehäuses mit zwei seitlichen Führungsnuten für die Federbasis und die Kontaktkammer mit einer mittig angeordneten Stützrippe ausgebildet. Damit läßt sich eine ausreichend sichere Lagefixierung der Kurzschlußbrücke bei sehr gedrängter Anordnung und geringem Aufwand an Fixierungsmitteln für die Kurzschlußbrücke realisieren.With regard to the most compact possible structure and the most compact possible arrangement of a short-circuit contact consisting of two contact elements and a short-circuit bridge, it is advantageous if the contact spring is arranged together with two contact elements as short-circuit unit in a common contact chamber of the housing. In this case, the outer wall of the housing is formed with two lateral guide grooves for the spring base and the contact chamber with a centrally arranged support rib to fix the position of the contact spring. A sufficiently secure position fixing of the short-circuit bridge can thus be realized with a very compact arrangement and little effort in fixing means for the short-circuit bridge.

Weitere vorteilhafte Ausgestaltungen des Gegenstandes des Anspruchs 1 sind in den übrigen Unteransprüchen angegeben. Die Erfindung wird anhand eines in der Zeichnung dargestellten Ausführungsbeispieles im folgenden näher beschrieben.Further advantageous embodiments of the subject matter of claim 1 are specified in the remaining subclaims. The invention is described below with reference to an embodiment shown in the drawing.

Es zeigen

Fig. 1
einen Steckverbinder im Schnitt durch eine Kontaktkammer,
Fig. 2
eine Draufsicht auf die Anschluß- und Bestückungsseite eines Steckverbinders ohne Kontakte,
Fig. 3
einen Steckverbinder in einer der Fig. 1 entsprechenden Darstellung im gekuppelten Zustand,
Fig. 4 bis 6
in drei Ansichten eine Kurzschlußbrücke und
Fig. 7 bis 9
in drei Ansichten eine für die Kurzschlußbrücke vorgesehene Abdeckung.
Show it
Fig. 1
a connector in section through a contact chamber,
Fig. 2
a plan view of the connection and assembly side of a connector without contacts,
Fig. 3
a connector in a representation corresponding to FIG. 1 in the coupled state,
4 to 6
in three views a short circuit bridge and
7 to 9
in three views a cover provided for the short circuit bridge.

Der Steckverbinder besteht aus einem Gehäuse 1 aus Isoliermaterial, welches mehrere nebeneinander liegende Kontaktkammern 2 für Kontaktelemente 3 und Kontaktfedern 4 aufweist, wobei in einer Kontaktkammer 2 jeweils zwei Kontaktelemente 3 und eine Kontaktfeder 4 angeordnet sind, welche die beiden Kontaktelemente als Kurzschlußbrücke miteinander verbindet. Auf diese Weise werden modular, d.h. ohne Teilungsverlust, aneinander gereihte Kurzschlußeinheiten gebildet, wobei in dieser Aneinanderreihung zwischen zwei Kurzschlußeinheiten auch 2-paarig angeordnete Standard-Kontaktkammern ohne Kurzschlußkontakt vorgesehen sein können.The connector consists of a housing 1 made of insulating material, which has a plurality of adjacent contact chambers 2 for contact elements 3 and contact springs 4, two contact elements 3 and a contact spring 4 being arranged in a contact chamber 2, which connects the two contact elements as a short-circuit bridge. In this way, modular, i.e. without loss of division, short-circuit units arranged in a row, wherein in this series arrangement between two short-circuit units 2-pair standard contact chambers without short-circuit contact can also be provided.

Die Kontaktelemente 3 sind innerhalb der Kontaktkammern in einer ersten Reihe angeordnet und bestehen aus bei derartigen Steckverbindern üblichen Kontaktelementen mit einem Anschlußbereich 5, einem Kontaktbereich 6 und einem Übergangsbereich 7 zwischen Anschluß- und Kontaktbereich. Die Kontaktfedern 4 für die Kurzschlußbrücken sind in einer zu der ersten Reihe parallelen Reihe angeordnet und in einer später noch genauer beschriebenen Weise ausgebildet und angeordnet.The contact elements 3 are arranged in a first row within the contact chambers and consist of contact elements customary in such connectors with a connection area 5, a contact area 6 and a transition area 7 between the connection and contact area. The contact springs 4 for the short-circuit bridges are arranged in a row parallel to the first row and are formed and arranged in a manner described in more detail later.

Außerdem gehört zu dem Steckverbinder - wie Fig. 3 zeigt - noch ein aus Isoliermaterial bestehender Steckerkörper 30, der mit einer Reihe von zum Einstecken in die Kontaktelemente 3 bestimmten Kontaktstiften oder -messern 31 und in einer hierzu parallelen Reihe für jede Kurzschlußbrücke 4 mit einem aus Isoliermaterial bestehenden Unterbrecherelement 32 ausgebildet ist, welches bei der Kupplung von Gehäuse und Steckerkörper eine Kontaktfeder 4 von den miteinander verbundenen Kontaktelementen 3 abhebt. Bei dem in Fig. 3 dargestellten Steckverbinder ist das Gehäuse 1 noch von einem Übergehäuse 33 aus Isoliermaterial umgeben.In addition, the connector - as shown in FIG. 3 - Another connector body 30 made of insulating material, which is designed with a series of contact pins or knives 31 intended for insertion into the contact elements 3 and in a parallel row for each short-circuit bridge 4 with an interrupter element 32 made of insulating material, which is used for the coupling of Housing and connector body lifts a contact spring 4 from the interconnected contact elements 3. In the connector shown in Fig. 3, the housing 1 is still surrounded by an outer housing 33 made of insulating material.

Bei dem erfindungsgemäßen Steckverbinder bestehen die Kurzschlußbrücken jeweils aus einer zweischenkligen Kontaktfeder 4 mit einer Federbasis 8 und mindestens einem Kontaktschenkel 9, der an einem Ende über eine im Querschnitt U-förmige Biegung 10 mit der Federbasis verbunden ist. Die Federbasis 8 ist an der Innenseite einer Außenwand 11 des Gehäuses 1 gelagert. Der Kontaktschenkel 9 kann frei federn und ist mit einer auf die Kontaktelemente 3 hin gerichteten Ausprägung 12 als Kontaktstelle versehen, die im Querschnitt U- oder V-förmig gestaltet ist und unmittelbar an dem Übergangsbereich 7 der Kontaktelemente 3 kontaktierend anliegt. Hierzu ist dieser Übergangsbereich in geeigneter Weise als Kontaktstelle ausgebildet, wobei die der Ausprägung 12 des Kontaktschenkels 9 zugekehrte Rückseite des Übergangsbereichs z.B. durch eine Prägung bündig fluchtend mit der Rückseite des Kontaktbereiches 6 eines Kontaktelementes 3 verläuft. Die Ausprägung 12 ist etwa ein Drittel der Gesamtlänge des Kcntaktschenkels von dessen freien Ende 13 entfernt angeordnet, wobei der Kontaktschenkel 9 etwa doppelt so lang ist wie die Federbasis 8. Ferner ist der an seinem freien Ende 13 für das Unterbrecherelement 32 schräg abgewinkelte Kontaktschenkel 9 durch eine Kröpfung 14 am Übergang zur U-förmigen Biegung 10 etwas in Richtung auf die Federbasis 8 zu versetzt und hier in seiner Mitte, also in symmetrischer Anordnung, mit einem sich in Schenkellängsrichtung erstreckenden, von dem freien Ende 13 ausgehenden Längsschlitz 15 versehen, der zwei parallele, an zwei Kontaktelementen 3 anliegende Kontaktschenkel 9a, 9b (Fig. 5, 6) bildet und sich über die U-förmige Biegung 10 hinaus bis zur Federbasis 8 erstreckt. Die zwischen den Kontaktschenkeln 9a, 9b liegende Fläche am Schlitzende dient dabei als Druckfläche 16 zum Eindrücken der Federbasis in zwei seitliche Führungsnuten 17, 18 an der Innenseite der Außenwand 11 des Gehäuses 1 bis zu einem Anschlag 19, welcher an einer mittig in einer Kontaktkammer 2 angeordneten Doppel-T-förmigen Stützrippe 20 ausgebildet ist. Zur weiteren Lagefixierung der Kontaktfeder 4 ist auf die Federbasis eine zusätzliche Rastfeder 21 aus Federstahl aufgesetzt, die mit einem ausgestellten Federlappen 22 in eine Öffnung 23 der Außenwand 11 der Gehäuses 1 einrastet. Die Federbasis 8 ist hierfür mit zwei Ausnehmungen 24, 25 versehen, in denen die Rastfeder 21 mit zwei Biegelappen befestigt ist. Der Federlappen 22 ist unterhalb der Federbasis 8 seitlich der U-förmigen Biegung 10 liegend vorgesehen. Infolge der "Verlängerung" der Kontaktfeder 4 durch die U-förmige Biegung 10 erstreckt sich die Kontaktfeder an der Anschlußseite des Gehäuses 1 über die Kontaktkammer 2 hinaus. In diesem Bereich ist als schützende Abdeckung am Gehäuse ein L-förmiger Winkel 26 (Fig. 6 bis 8) aus Isoliermaterial vorgesehen und z.B. durch Rastmittel am Gehäuse 1 befestigt, wobei der lange Schenkel 27 der Abdeckung 26 mit seiner Außenfläche eine Bestückungshilfe für das Einführen eines Kontaktelementes in die Kontaktkammer bildet. An der gegenüberliegenden Seite der Kontaktfeder 4, also im Bereich des freien Endes 13 der Kontaktschenkel 9a, 9b, ist in der Kontaktkammer noch eine Stützwand 28 für das Unterbrecherelement 32 vorgesehen, die sich bis nahe an die Ausprägung 12 erstreckt. Außerdem ist die Außenwand 11 des Gehäuses noch mit einer nach außen offenen Aussparung 29 für das vom Unterbrecherelement 32 bei der Kupplung von Gehäuse und Stecker zur Seite gedrückte freie Federende 13 der Kontaktschenkel versehen.In the connector according to the invention, the short-circuit bridges each consist of a two-leg contact spring 4 with a spring base 8 and at least one contact leg 9, which is connected at one end to the spring base via a cross-sectionally U-shaped bend 10. The spring base 8 is mounted on the inside of an outer wall 11 of the housing 1. The contact leg 9 can spring freely and is provided with a configuration 12 directed towards the contact elements 3 as a contact point, which is U-shaped or V-shaped in cross section and is in direct contact with the transition region 7 of the contact elements 3. For this purpose, this transition area is designed in a suitable manner as a contact point, the rear side of the transition area facing the shape 12 of the contact leg 9, for example by embossing, being flush with the rear side of the contact area 6 of a contact element 3. The expression 12 is arranged about a third of the total length of the contact leg from its free end 13, the contact leg 9 being approximately twice as long as the spring base 8. Furthermore, the contact leg 9, which is angled at an angle at its free end 13 for the interrupter element 32, is through a crank 14 at the transition to the U-shaped bend 10 to be displaced somewhat in the direction of the spring base 8 and here in its center, that is to say in a symmetrical arrangement, with one extending from the free end 13 in the longitudinal direction of the leg Provided longitudinal slot 15, which forms two parallel contact legs 9a, 9b (FIGS. 5, 6) resting on two contact elements 3 and extends beyond the U-shaped bend 10 to the spring base 8. The surface between the contact legs 9a, 9b at the end of the slot serves as a pressure surface 16 for pressing the spring base into two lateral guide grooves 17, 18 on the inside of the outer wall 11 of the housing 1 up to a stop 19 which is centered on a contact chamber 2 arranged double T-shaped support rib 20 is formed. To further fix the position of the contact spring 4, an additional detent spring 21 made of spring steel is placed on the spring base and engages with an extended spring tab 22 in an opening 23 of the outer wall 11 of the housing 1. For this purpose, the spring base 8 is provided with two recesses 24, 25, in which the detent spring 21 is fastened with two bending tabs. The spring tab 22 is provided below the spring base 8 to the side of the U-shaped bend 10. As a result of the "extension" of the contact spring 4 through the U-shaped bend 10, the contact spring extends beyond the contact chamber 2 on the connection side of the housing 1. In this area, an L-shaped bracket 26 (FIGS. 6 to 8) made of insulating material is provided as a protective cover on the housing and is fastened to the housing 1, for example, by latching means, the long leg 27 of the cover 26 with its outer surface being an insertion aid for insertion forms a contact element in the contact chamber. On the opposite side of the contact spring 4, that is to say in the region of the free end 13 of the contact legs 9a, 9b, a support wall 28 for the interrupter element 32 is provided in the contact chamber, which extends close to the shape 12. In addition, the outer wall 11 of the housing is also provided with an outwardly open recess 29 for the free spring end 13 of the contact limbs pressed to the side by the interrupter element 32 when the housing and plug are coupled.

Claims (17)

  1. Plug connector having a housing (1) consisting of insulating material with contact chambers (2), in which contact elements (3) are arranged in a row which have a connecting region (5) and a contact region (6) and in a row, parallel thereto, at least one contact spring (4) is provided, each contact spring, as short-circuit bridge, connecting in each case two contact elements (3) to one another and consisting of a spring base (8), resting on the inside of an outer wall (11) of the housing (1), and of at least one freely resilient contact limb (9) which is provided as contact point with a stamping (12) directed towards the contact elements and is connected at one end via a bend (10) of U-shaped cross-section to the spring base, and having a plug member (30) consisting of insulating material, which is designed with a row of contact pins (31) or contact blades, determined for insertion into the contact elements, and, parallel thereto, a row for each short-circuit bridge with an interruption element (32) consisting of insulating material, which lifts a contact spring (4) off the mutually connected contact elements (3) during the coupling of housing (1) and plug member (30), characterized in that
    a) the stamping (12) rests directly in a contact-making manner on a transition region (7), designed as contact region, between the connecting region (5) and the contact region (6) of two contact elements (3),
    b) in that a lever arm is formed between the stamping (12) and the free end (13) of the contact limb (9), and
    c) in that the interruption element (32) is inserted at the free end (13) of the contact limb (9) into the housing (1) and pushed onto the lever arm so that said lever arm and the free end (13) are pressed to the side during the coupling and the stamping (12) is lifted off the transition region (7).
  2. Plug connector according to Claim 1, characterized in that the stamping (12) of the contact limb (9) is designed to be of U- or V-shaped cross-section.
  3. Plug connector according to Claim 1 or 2, characterized in that the rear side, facing the stamping (12) of the contact limb (9), of the transition region (7), for example due to a stamping, runs in a flush manner and aligned to the rear side of the contact region (6) of the contact element (3).
  4. Plug connector according to one of Claims 1 to 3, characterized in that the contact limb (9) of the contact spring (4) is approximately twice as long as the spring base (8).
  5. Plug connector according to one of the preceding claims, characterized in that the contact limb (9) of the contact spring (4) is slightly offset in the direction of the spring base (8) by a crank (14) at the transition to the U-shaped bend (10).
  6. Plug connector according to one of the preceding claims, characterized in that the stamping (12) of the contact limb (9) is arranged remote from the free end (13) of the contact limb by about one third of the overall length of the contact limb.
  7. Plug connector according to one of the preceding claims, characterized in that the free end (13) of the contact limb (9) is angled obliquely.
  8. Plug connector according to one of the preceding claims, characterized in that the contact limb (9) is provided in its centre with a longitudinal slot (15) which extends in the longitudinal direction of the limb and starts from the free end (13) of the contact limb (9).
  9. Plug connector according to Claim 8, characterized in that the longitudinal slot (15) extends beyond the U-shaped bend (10) up to the spring base (8).
  10. Plug connector according to one of the preceding claims, characterized in that an additional locking spring (21) of spring steel is placed on the spring base (8), which locking spring locks with an opened out spring tab (22) into an opening (23) of the outer wall (11) of the housing (1).
  11. Plug connector according to Claim 10, characterized in that the spring tab (22) is intended to lie below the spring base (8) at the side of the U-shaped bend (10).
  12. Plug connector according to Claim 10 or 11, characterized in that the spring base (8) is provided with two recesses (24, 25), in which the locking spring (21) is fastened with two bending tabs.
  13. Plug connector according to one of the preceding claims, characterized in that the contact spring (4) is arranged, together with two contact elements (3), as short-circuit unit in each case in a common contact chamber (2) of the housing (1).
  14. Plug connector according to Claim 13, characterized in that for fixing the position of the contact spring (4) the outer wall (11) of the housing (1) is designed with two lateral guide grooves (17, 18) for the spring base (8) and the contact chamber (2) is designed with a centrally arranged supporting rib (20).
  15. Plug connector according to one of the preceding claims, characterized in that the contact spring (4) extends, with its U-shaped bend (10), on the connecting side of the housing (1) beyond the contact chamber (2).
  16. Plug connector according to Claim 15, characterized in that the U-shaped bend (10) is protected outwardly at least on one side by a cover (26) made of insulating material.
  17. Plug connector according to Claim 16, characterized in that the cover (26) consists of an angle which has an L-shaped cross-section and is fastened, for example locked, on the housing (1).
EP92918399A 1991-09-30 1992-08-27 Plug connector with short-circuit bridge Expired - Lifetime EP0606241B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9112178U DE9112178U1 (en) 1991-09-30 1991-09-30
DE9112178U 1991-09-30
PCT/EP1992/001980 WO1993007662A1 (en) 1991-09-30 1992-08-27 Plug connector with short-circuit bridge

Publications (2)

Publication Number Publication Date
EP0606241A1 EP0606241A1 (en) 1994-07-20
EP0606241B1 true EP0606241B1 (en) 1995-04-05

Family

ID=6871801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92918399A Expired - Lifetime EP0606241B1 (en) 1991-09-30 1992-08-27 Plug connector with short-circuit bridge

Country Status (7)

Country Link
US (1) US5466168A (en)
EP (1) EP0606241B1 (en)
JP (1) JP3200064B2 (en)
KR (1) KR100261912B1 (en)
DE (2) DE9112178U1 (en)
ES (1) ES2070645T3 (en)
WO (1) WO1993007662A1 (en)

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Also Published As

Publication number Publication date
WO1993007662A1 (en) 1993-04-15
DE9112178U1 (en) 1992-07-16
DE59201853D1 (en) 1995-05-11
JPH06511108A (en) 1994-12-08
US5466168A (en) 1995-11-14
EP0606241A1 (en) 1994-07-20
JP3200064B2 (en) 2001-08-20
KR100261912B1 (en) 2000-07-15
ES2070645T3 (en) 1995-06-01

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