EP0645856A1 - Method of making contact elements-groups for a connecting device - Google Patents

Method of making contact elements-groups for a connecting device Download PDF

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Publication number
EP0645856A1
EP0645856A1 EP94114229A EP94114229A EP0645856A1 EP 0645856 A1 EP0645856 A1 EP 0645856A1 EP 94114229 A EP94114229 A EP 94114229A EP 94114229 A EP94114229 A EP 94114229A EP 0645856 A1 EP0645856 A1 EP 0645856A1
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EP
European Patent Office
Prior art keywords
contact
contact elements
connection
areas
connections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94114229A
Other languages
German (de)
French (fr)
Other versions
EP0645856B1 (en
Inventor
Johan Vanbesien
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0645856A1 publication Critical patent/EP0645856A1/en
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Publication of EP0645856B1 publication Critical patent/EP0645856B1/en
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/49222—Contact or terminal manufacturing by assembling plural parts forming array of contacts or terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49224—Contact or terminal manufacturing with coating

Definitions

  • the invention relates to a method for producing contact element groups for 90 ° angled connectors in press-fit technology, in which the contact elements in a punching device are formed on the plug side with a contact area and on the connection side with a connection area which has a press-in section running at right angles to the plug direction and via connecting rods related to the contact area.
  • a connector which is formed by a main body serving as a contact strip made of insulating material and a contact element carrying additional body made of insulating material, surrounded by a sheet metal cladding and fastened to a printed circuit board using press-fit technology.
  • the contact elements are arranged one above the other in a column, on the plug side with a contact area having a contact spring and on the connection side with a connection area running at right angles to the plug direction, which has a press-in pin and is connected to the contact area via connecting rods.
  • Such contact elements can be produced in a punching device.
  • connection subassemblies which are insulating supports of the contact elements projecting with their plug-in area in housing modules.
  • the contact elements are rectangular in their Connection area protruding from the connection subassemblies with a resilient section.
  • the connection area and the plug-in area of the contact elements are connected to one another via connecting rods.
  • the contact elements are arranged one above the other and produced as a group by stamping a lead frame.
  • the connector Since the remaining, required or desired contacts, in this example contacts 1, 3 and 5, but have permanently assigned contact and connection areas, the connector requires the same installation space on a printed circuit board, such as a connector with five rows of connectors, for example, despite partial assembly. However, in order to reduce the space requirement on the printed circuit board when partially fitting a connector designed, for example, for five rows of contacts with, for example, only three rows of contacts, new contact elements or contact elements with new connections are required.
  • the invention has for its object to provide a method in a method of the type mentioned, which ensures economical manufacture of the contact elements when partially equipped with a connector and also leads to a reduced space requirement when installing the connector on a circuit board.
  • This object is achieved in a method for producing contact elements for plug connectors according to the invention in that, for the production of groups with a different number of contact elements, different cutting tools are replaced in the punching device, that different connections between the contact areas and the connection areas are determined by means of these cutting tools Contact elements are punched, and that for the partial assembly of a connector only with a certain number of contact elements of the respective group with such a cutting tool, the connections between the contact areas and a number of these contact areas corresponding number of connection areas of the specific contact elements are punched and the unnecessary contact and Connection areas of the unused contact elements of the respective group simultaneously in the production of such different connections are punched away by the respective cutting tool.
  • connection configuration between the contact and connection areas can be varied to a large extent, so that when a connector is partially populated with fewer than the usual number of contact rows, the connection-side space requirement of a connector on a printed circuit board is also reduced.
  • the different connections between the contact and connection areas of certain contact elements can be produced in a simple manner by a stamp package formed by a plurality of stamps.
  • the respective cutting tool is advantageously exchanged into the punching tool in an intermediate region between the contact regions and the connecting rods of the contact elements.
  • the structure of different contact elements in the contact and in the connection area including the connecting rods remains unchanged in the manufacture of different groups of contact elements, since with different contact elements only the intermediate area between the contact areas and the connecting rods are changed and punched differently.
  • connection side of only partially equipped plug connectors it is particularly advantageous to connect the connection areas of certain contact elements on the connection side with successive connection areas to manufacture.
  • a partial assembly of a connector with, for example, only three rows of contacts instead of, for example, five rows of contacts provided with a full assembly only the smallest possible space requirement is required on the connection side, which is determined by a number of connections located immediately adjacent to one another and corresponding to the number of partially equipped contacts, for example three-row partial assembly corresponds to the space requirement of three connections located directly next to each other.
  • the connector 1 in Fig. 1 is a connector angled by 90 °, which is fastened to a printed circuit board 2 using press-fit technology and contacted.
  • the connector has a contact strip 3 made of insulating material, which is designed either as a strip with pin-shaped knife contacts or as a strip with socket-like contact springs.
  • the contact elements 4 are arranged in mutually parallel rows and mutually parallel columns in the contact strip.
  • the contact strip 1 is formed on the plug-in side with chambers for contact springs 5 and thus as a spring strip, five chambers in each case being arranged vertically below one another and, for example, 17 columns being provided, so that it is then a spring strip with 5 Rows and 17 columns and therefore an 85-pin connector.
  • the contact elements 4 arranged in a column form a group which is produced in a punching device.
  • the contact elements 4 are formed on the plug side with a contact area 6 which has the contact springs 5 in its contact zone interacting with a mating plug element and is connected to the connecting rods 8 of the connection area 9 via an intermediate area 7 (FIG. 2) embedded in plastic.
  • the connection area has a press-in section 10 running at right angles to the plug-in direction, which is formed in the connection zone on the printed circuit board, for example as an elastically resilient press-in pin.
  • the five contact elements 4 of the group - and thus always all contact elements within a row - are all labeled on the plug side and connection side with the letters a, b, c, d and e, with FIGS.
  • the space requirement on the printed circuit board 2 that is to say on the connection side can be reduced by — as FIG. 5 shows — the contact areas 6 of the rows a, c and e on the connection side with the connection areas 9 of the rows a, b and c are connected.
  • FIG. 5 shows — the contact areas 6 of the rows a, c and e on the connection side with the connection areas 9 of the rows a, b and c are connected.
  • different connections are necessary.
  • the method according to the invention provides for different cutting tools to be inserted into the punching device in order to produce groups with a different number of contact elements.
  • the different connections are each produced by a stamp package 11 formed by a plurality of stamps, the individual cutting stamps having different shapes and each being identified by cross hatching in FIGS. 7 to 11. Accordingly, the stamp package 11 is always replaced in the intermediate area 7 connecting the contact areas 6 and the connecting rods 8, later embedded in plastic, and designed so that the intermediate area is punched out during the punching process except for the required connections.
  • the group is only occupied with the contact elements of the rows a, c, d and e.
  • Their contact areas 6 are connected on the connection side to the rows a, b, c and d by the stamp package 11 or its individual stamp are designed such that four corresponding connections 12 between the stamping process Plug and connection side arise.
  • a three-row group of contact elements is provided, the rows a, c and e of which on the plug side are connected to the successive rows a, on the connection side via corresponding connections 13 produced during the stamping process.
  • b and c are connected.
  • the individual stamps of the stamp package 11a are designed here so that the three connections aa, cb and ec are made between the plug and connection side.
  • the stamp package 11b produces four connections 14 between the plug and connection side, namely the four connections ba, cb, dc and ed between the plug and connection side.
  • connection element group in FIG. 10 has three connections 15, namely the connections ba, cb and dc, which are punched out of the intermediate region 7, for example by a stamp package 11c.
  • the contact element group in FIG. 10 the smaller space requirement on the circuit board 2 compared to the three-row arrangement in FIG. 3 can be clearly seen.
  • the rows b and d on the plug side are in contrast on the connection side 7 to 10 not connected with successive rows, but with row a and row c. In spite of this, the space requirement on the connection side is less than with the arrangement in FIG.
  • the contact element group in FIG. 11 can be produced by a stamp package 11d or obtained from the contact element group in FIG. 9.
  • the reduction in space required for all contact element groups in FIGS. 7 to 11 is advantageously achieved by the variable connections 12-15 produced by the method according to the invention.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

Different cutting tools are alternately fitted into a stamping device in order to produce groups having a different number of contact elements (4), and different connections between the contact regions (6) and the connecting regions (9) of the contact elements (4) are thus stamped, and superfluous contacts and connections are cut away. In the case of plug connectors which are partially fitted, this method leads to economical production of different contact element groups and to a reduction in the space requirement on the connection side when installing a plug connector on a printed circuit board. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Kontaktelemente-Gruppen für um 90° abgewinkelte Steckverbinder in Einpreßtechnik, bei dem die Kontaktelemente in einer Stanzeinrichtung steckseitig mit einem Kontaktbereich und anschlußseitig mit einem Anschlußbereich ausgebildet werden, der einen rechtwinklig zur Steckrichtung verlaufenden Einpreßabschnitt aufweist und über Verbindungsstiele mit dem Kontaktbereich zusammenhängt.The invention relates to a method for producing contact element groups for 90 ° angled connectors in press-fit technology, in which the contact elements in a punching device are formed on the plug side with a contact area and on the connection side with a connection area which has a press-in section running at right angles to the plug direction and via connecting rods related to the contact area.

Durch das DE-GM 90 13 007 ist ein Steckverbinder bekannt, der von einem als Kontaktleiste dienenden Hauptkörper aus Isoliermaterial und einem Kontaktelemente tragenden Zusatzkörper aus Isoliermaterial gebildet, von einer Blechverkleidung umgeben und in Einpreßtechnik an einer Leiterplatte befestigt ist. Die Kontaktelemente sind jeweils in einer Spalte übereinander angeordnet, steckseitig mit einem eine Kontaktfeder aufweisenden Kontaktbereich und anschlußseitig mit einem rechtwinklig zur Steckrichtung verlaufenden Anschlußbereich ausgebildet, der einen Einpreßstift aufweist und über Verbindungsstiele mit dem Kontaktbereich zusammenhängt. Derartige Kontaktelemente können in einer Stanzeinrichtung hergestellt werden.From DE-GM 90 13 007 a connector is known, which is formed by a main body serving as a contact strip made of insulating material and a contact element carrying additional body made of insulating material, surrounded by a sheet metal cladding and fastened to a printed circuit board using press-fit technology. The contact elements are arranged one above the other in a column, on the plug side with a contact area having a contact spring and on the connection side with a connection area running at right angles to the plug direction, which has a press-in pin and is connected to the contact area via connecting rods. Such contact elements can be produced in a punching device.

Aus der DE-OS 40 40 551 ist eine Verbinderanordnung mit einer Vielzahl von einzelnen, zueinander parallelen Anschlußunteranordnungen bekannt, welche isolierende Träger der mit ihrem Steckbereich in Gehäusemodule ragenden Kontaktelemente sind. Die Kontaktelemente sind in ihrem rechtwinklig zur Steckrichtung aus den Anschlußunteranordnungen herausragenden Anschlußbereich mit einem federnd nachgiebigen Abschnitt ausgebildet. Der Anschlußbereich und der Steckbereich der Kontaktelemente sind über Verbindungsstiele miteinander verbunden. Die Kontaktelemente sind übereinander angeordnet und als Gruppe durch Stanzen eines Anschlußleiterrahmens hergestellt.From DE-OS 40 40 551 a connector arrangement is known with a large number of individual, mutually parallel connection subassemblies, which are insulating supports of the contact elements projecting with their plug-in area in housing modules. The contact elements are rectangular in their Connection area protruding from the connection subassemblies with a resilient section. The connection area and the plug-in area of the contact elements are connected to one another via connecting rods. The contact elements are arranged one above the other and produced as a group by stamping a lead frame.

Bei den bekannten Steckverbindern bilden - wie dies allgemein üblich ist - z.B. vier oder fünf senkrecht übereinander in einer Spalte angeordnete Kontaktelemente jeweils eine Gruppe, bei der der Kontaktbereich eines Kontaktelementes jeweils einem bestimmten Anschlußbereich fest zugeordnet ist und über den betreffenden Verbindungsstiel immer mit dem jeweiligen Anschlußbereich zusammenhängt. Es gibt jedoch Einsatzfälle von Steckverbindern, bei denen weniger Kontakte benötigt oder größere Kontaktabstände gewünscht werden. In solchen Fällen ist ein Steckverbinder dann nicht mit z.B. fünf Kontaktreihen, sondern nur zum Teil bestückt, z.B. nur mit drei Kontaktreihen. Bei den bekannten Steckverbindern mit vier- oder fünfreihigen Kontaktelementen bedeutet dies, daß bei einer in einer Spalte angeordneten Gruppe von z.B. fünf Kontaktelementen die Kontakt- und Anschlußbereiche der nicht benötigten Kontakte, z.B. der Kontakte 2 und 4, entfernt werden. Da die übrigen, benötigten oder gewünschten Kontakte, im Beispiel also die Kontakte 1,3 und 5, aber fest einander zugeordnete Kontakt- und Anschlußbereiche besitzen, benötigt der Steckverbinder trotz Teilbestückung denselben Einbauplatz auf einer Leiterplatte wie ein z.B. mit fünf Reihen vollbestückter Steckverbinder. Um jedoch bei einer Teilbestückung eines z.B. für fünf Kontaktreihen ausgelegten Steckverbinders mit z.B. nur drei Kontaktreihen den Platzbedarf auf der Leiterplatte zu verringern, benötigt man neue Kontaktelemente oder Kontaktelemente mit neuen Verbindungen.In the known connectors - as is common practice - for example four or five contact elements arranged vertically one above the other in a column each form a group in which the contact area of a contact element is permanently assigned to a specific connection area and always with the respective connection area via the relevant connecting rod related. However, there are applications for connectors in which fewer contacts are required or larger contact spacings are required. In such cases, a connector is not equipped with five rows of contacts, for example, but only partially, for example, only with three rows of contacts. In the known connectors with four or five-row contact elements, this means that in a group of, for example, five contact elements arranged in a column, the contact and connection areas of the unnecessary contacts, for example contacts 2 and 4, are removed. Since the remaining, required or desired contacts, in this example contacts 1, 3 and 5, but have permanently assigned contact and connection areas, the connector requires the same installation space on a printed circuit board, such as a connector with five rows of connectors, for example, despite partial assembly. However, in order to reduce the space requirement on the printed circuit board when partially fitting a connector designed, for example, for five rows of contacts with, for example, only three rows of contacts, new contact elements or contact elements with new connections are required.

Unterschiedliche Verbindungen wurden bisher durch andere Stanz- und Biegevorgänge hergestellt.Different connections have so far been made by other stamping and bending processes.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Verfahren der eingangs genannten Art einen Weg aufzuzeigen, der bei Teilbestückung eines Steckverbinders eine wirtschaftliche Herstellung der Kontaktelemente gewährleistet und auch zu einem verringerten Platzbedarf beim Einbau des Steckverbinders auf einer Leiterplatte führt.The invention has for its object to provide a method in a method of the type mentioned, which ensures economical manufacture of the contact elements when partially equipped with a connector and also leads to a reduced space requirement when installing the connector on a circuit board.

Diese Aufgabe wird bei einem Verfahren zur Herstellung von Kontaktelementen für Steckverbinder gemäß der Erfindung dadurch gelöst, daß zur Herstellung von Gruppen mit einer unterschiedlichen Anzahl von Kontaktelementen unterschiedliche Schneidwerkzeuge in die Stanzeinrichtung eingewechselt werden, daß mittels dieser Schneidwerkzeuge unterschiedliche Verbindungen zwischen den Kontaktbereichen und den Anschlußbereichen bestimmter Kontaktelemente gestanzt werden, und daß zur Teilbestückung eines Steckverbinders lediglich mit einer bestimmten Anzahl von Kontaktelementen der jeweiligen Gruppe mit jeweils einem solchen Schneidwerkzeug die Verbindungen zwischen den Kontaktbereichen und einer der Anzahl dieser Kontaktbereiche entsprechenden Anzahl von Anschlußbereichen der bestimmten Kontaktelemente gestanzt und die überflüssigen Kontakt- und Anschlußbereiche der nicht benutzten Kontaktelemente der jeweiligen Gruppe gleichzeitig bei der Herstellung solcher unterschiedlicher Verbindungen durch das jeweilige Schneidwerkzeug weggestanzt werden.This object is achieved in a method for producing contact elements for plug connectors according to the invention in that, for the production of groups with a different number of contact elements, different cutting tools are replaced in the punching device, that different connections between the contact areas and the connection areas are determined by means of these cutting tools Contact elements are punched, and that for the partial assembly of a connector only with a certain number of contact elements of the respective group with such a cutting tool, the connections between the contact areas and a number of these contact areas corresponding number of connection areas of the specific contact elements are punched and the unnecessary contact and Connection areas of the unused contact elements of the respective group simultaneously in the production of such different connections are punched away by the respective cutting tool.

Bei einem derartigen Verfahren werden unterschiedliche Kontaktelemente in ein- und demselben Herstellungsvorgang durch jeweils ein in die Stanzeinrichtung einwechselbares Schneidwerkzeug hergestellt, wobei unterschiedliche Verbindungen zwischen den Kontakt- und Anschlußbereichen auf einmal gestanzt und auch überflüssige Kontakte und Anschlüsse weggeschnitten werden. Hierdurch werden mehrere Durchläufe in komplexen Werkzeugen eingespart. Außerdem ist bei einem derartigen Verfahren auch die Verbindungskonfiguration zwischen den Kontakt- und Anschlußbereichen in breitem Umfang variabel zu gestalten, so daß bei einer Teilbestückung eines Steckverbinders mit weniger als mit der üblichen Anzahl von Kontaktreihen auch der anschlußseitige Platzbedarf eines Steckverbinders auf einer Leiterplatte verringert wird.In such a method, different contact elements are produced in one and the same manufacturing process by a cutting tool that can be exchanged in the punching device, with different connections between the contact and connection areas at once punched and unnecessary contacts and connections are cut away. This saves several passes in complex tools. In addition, with such a method, the connection configuration between the contact and connection areas can be varied to a large extent, so that when a connector is partially populated with fewer than the usual number of contact rows, the connection-side space requirement of a connector on a printed circuit board is also reduced.

Die unterschiedlichen Verbindungen zwischen den Kontakt- und Anschlußbereichen bestimmter Kontaktelemente lassen sich bei einem erfindungsgemäßen Verfahren in einfacher Weise durch jeweils ein von mehreren Stempeln gebildetes Stempelpaket herstellen.The different connections between the contact and connection areas of certain contact elements can be produced in a simple manner by a stamp package formed by a plurality of stamps.

In vorteilhafter Weise wird bei einem erfindungsgemäßen Verfahren das jeweilige Schneidwerkzeug in einen Zwischenbereich zwischen den Kontaktbereichen und den Verbindungsstielen der Kontaktelemente in das Stanzwerkzeug eingewechselt. Auf diese Weise bleibt - unabhängig von einer Voll- oder Teilbestückung von Steckverbindern - bei der Herstellung von verschiedenen Gruppen von Kontaktelementen die Struktur unterschiedlicher Kontaktelemente im Kontakt- und im Anschlußbereich einschließlich der Verbindungsstiele unverändert, da bei unterschiedlichen Kontaktelementen immer nur der Zwischenbereich zwischen den Kontaktbereichen und den Verbindungsstielen verändert und unterschiedlich gestanzt wird.In a method according to the invention, the respective cutting tool is advantageously exchanged into the punching tool in an intermediate region between the contact regions and the connecting rods of the contact elements. In this way - regardless of a full or partial assembly of connectors - the structure of different contact elements in the contact and in the connection area including the connecting rods remains unchanged in the manufacture of different groups of contact elements, since with different contact elements only the intermediate area between the contact areas and the connecting rods are changed and punched differently.

Hinsichtlich des anschlußseitigen Platzbedarfs von nur teilbestückten Steckverbindern ist es besonders vorteilhaft, die Verbindungen von Kontaktbereichen bestimmter Kontaktelemente anschlußseitig mit aufeinanderfolgenden Anschlußbereichen herzustellen. In diesem Fall ist bei einer Teilbestückung eines Steckverbinders mit z.B. nur drei Kontaktreihen anstelle von z.B. fünf bei einer Vollbestückung vorgesehenen Kontaktreihen anschlußseitig nur der geringstmögliche Platzbedarf nötig, der durch eine der Anzahl der teilbestückten Kontakte entsprechende Anzahl von unmittelbar nebeneinander liegenden Anschlüssen bestimmt wird und bei z.B. dreireihiger Teilbestückung dem Platzbedarf von drei unmittelbar nebeneinanderliegenden Anschlüssen entspricht.With regard to the space requirement on the connection side of only partially equipped plug connectors, it is particularly advantageous to connect the connection areas of certain contact elements on the connection side with successive connection areas to manufacture. In this case, with a partial assembly of a connector with, for example, only three rows of contacts instead of, for example, five rows of contacts provided with a full assembly, only the smallest possible space requirement is required on the connection side, which is determined by a number of connections located immediately adjacent to one another and corresponding to the number of partially equipped contacts, for example three-row partial assembly corresponds to the space requirement of three connections located directly next to each other.

Das erfindungsgemäße Verfahren wird anhand der Zeichnung und dort dargestellter Variationsmöglichkeiten im folgenden näher erläutert. Es zeigen

  • Fig. 1 in schematischer Darstellung den Aufbau eines üblichen, mit fünf Kontaktreihen a bis e vollbestückten Steckverbinders,
  • Fig. 2 eine in einer Spalte angeordnete, in einem Teilbereich in Kunststoff eingebettete Gruppe von fünf Kontaktelementen für einen Steckverbinder nach Fig. 1,
  • Fig. 3 und 4 jeweils eine teilbestückte, in Kunststoff eingebettete Gruppe mit nur drei bzw. zwei Kontaktelementen,
  • Fig. 5 und 6 in einer der Fig. 1 entsprechenden Darstellung einen mit nur drei Kontaktreihen a,c und e teilbestückten Steckverbinder,
  • Fig. 7 bis 11 jeweils teilbestückte Gruppen mit einer unterschiedlichen Anzahl von Kontaktelementen für einen Steckverbinder, dessen Kontaktelemente-Gruppen nach dem erfindungsgemäßen Verfahren hergestellt sind.
The method according to the invention is explained in more detail below with reference to the drawing and the possible variations shown there. Show it
  • 1 is a schematic representation of the structure of a conventional connector fully populated with five rows of contacts a to e,
  • 2 shows a group of five contact elements for a plug connector according to FIG. 1 arranged in a column and embedded in plastic in a partial area, FIG.
  • 3 and 4 each a partially populated group embedded in plastic with only three or two contact elements,
  • 5 and 6 in a representation corresponding to FIG. 1 a connector partially populated with only three rows of contacts a, c and e,
  • Fig. 7 to 11 each partially populated groups with a different number of contact elements for a connector, the contact element groups are made by the inventive method.

Der Steckverbinder 1 in Fig. 1 ist ein um 90° abgewinkelter Steckverbinder, der in Einpreßtechnik an einer Leiterplatte 2 befestigt und kontaktiert ist. Der Steckverbinder besitzt eine aus Isoliermaterial bestehende Kontaktleiste 3, die entweder als Messerleiste mit stiftförmigen Messerkontakten oder als Federleiste mit buchsenartigen Kontaktfedern ausgebildet ist. In jedem Fall sind die Kontaktelemente 4 in zueinander parallelen Reihen und zueinander parallelen Spalten in der Kontaktleiste angeordnet. Im dargestellten Ausführungsbeispiel ist die Kontaktleiste 1 an der Steckseite mit Kammern für Kontaktfedern 5 und damit als Federleiste ausgebildet, wobei hier jeweils fünf Kammern in einer Spalte senkrecht untereinander angeordnet und z.B. 17 Spalten vorgesehen sein können, so daß es sich dann um eine Federleiste mit 5 Reihen und 17 Spalten und demnach um einen 85-poligen Steckverbinder handelt. Die in einer Spalte angeordneten Kontaktelemente 4 bilden eine Gruppe, die in einer Stanzeinrichtung hergestellt wird. Die Kontaktelemente 4 sind steckseitig mit einem Kontaktbereich 6 ausgebildet, der in seiner mit einem Gegensteckelement zusammenwirkenden Kontaktzone die Kontaktfedern 5 aufweist und über einen in Kunststoff eingebetteten Zwischenbereich 7 (Fig.2) mit den Verbindungsstielen 8 des Anschlußbereichs 9 zusammenhängt. Der Anschlußbereich weist einen rechtwinklig zur Steckrichtung verlaufenden Einpreßabschnitt 10 auf, der in der Anschlußzone an der Leiterplatte z.B. als elastisch federnder Einpreßstift ausgebildet ist. Die fünf Kontaktelemente 4 der Gruppe - und damit auch immer alle Kontaktelemente innerhalb einer Reihe - sind alle steckseitig sowie anschlußseitig jeweils mit den Buchstaben a,b,c,d und e bezeichnet, wobei in Fig. 1 und 2 zu sehen ist, daß ein Kontaktbereich 6, der steckseitig mit einem bestimmten Buchstaben bezeichnet ist, jeweils mit dem mit dem gleichen Buchstaben bezeichneten Anschlußbereich 9 verbunden ist. So ist beispielsweise die mit a bezeichnete Kontaktfeder 5 einer Spalte anschlußseitig mit der mit a bezeichneten Anschlußzone verbunden. Dies gilt in gleicher Weise jeweils für die übrigen Kontaktelemente und damit auch für alle jeweils in einer Reihe angeordneten Kontaktelemente des Steckverbinders. Damit entspricht der anschlußseitig auf der Leiterplatte 2 benötigte Einbauplatz für einen mit fünf Kontaktreihen voll bestückten Steckverbinder zwangsläufig dem Raumbedarf der fünfreihigen Anordnung a bis e.The connector 1 in Fig. 1 is a connector angled by 90 °, which is fastened to a printed circuit board 2 using press-fit technology and contacted. The connector has a contact strip 3 made of insulating material, which is designed either as a strip with pin-shaped knife contacts or as a strip with socket-like contact springs. In any case, the contact elements 4 are arranged in mutually parallel rows and mutually parallel columns in the contact strip. In the exemplary embodiment shown, the contact strip 1 is formed on the plug-in side with chambers for contact springs 5 and thus as a spring strip, five chambers in each case being arranged vertically below one another and, for example, 17 columns being provided, so that it is then a spring strip with 5 Rows and 17 columns and therefore an 85-pin connector. The contact elements 4 arranged in a column form a group which is produced in a punching device. The contact elements 4 are formed on the plug side with a contact area 6 which has the contact springs 5 in its contact zone interacting with a mating plug element and is connected to the connecting rods 8 of the connection area 9 via an intermediate area 7 (FIG. 2) embedded in plastic. The connection area has a press-in section 10 running at right angles to the plug-in direction, which is formed in the connection zone on the printed circuit board, for example as an elastically resilient press-in pin. The five contact elements 4 of the group - and thus always all contact elements within a row - are all labeled on the plug side and connection side with the letters a, b, c, d and e, with FIGS. 1 and 2 showing that a Contact area 6, which is labeled on the plug side with a specific letter, is each connected to the connection area 9 labeled with the same letter. For example, the with a contact spring 5 of a column connected on the connection side to the connection zone designated a. This applies in the same way to the other contact elements and thus also to all contact elements of the connector arranged in a row. Thus, the installation space required on the circuit board 2 for a connector fully populated with five rows of contacts inevitably corresponds to the space requirement of the five-row arrangement a to e.

Im Falle einer Teilbestückung des Steckverbinders mit z.B. nur drei Kontaktreihen a,c,e (Fig.3) oder zwei Kontaktreihen b und d (Fig.4) sind dann die Kontakt- und Anschlußbereiche der nicht benötigten Kontakte, also im Falle der Fig.3 die Bereiche b und d und im Falle der Fig.4 die Bereiche a,c und e zu entfernen. Dabei wird aber aufgrund der festen Zuordnung von Kontakt- und Anschlußbereichen auch bei Teilbestückung anschlußseitig in Fig. 3 nach wie vor der Platz für die fünfreihige Anordnung a-e und in Fig. 4 immer noch der Platz für eine vierreihige Anordnung a-d benötigt. Bei einer Teilbestückung des Steckverbinders z.B. mit drei Kontaktreihen a,c und e kann der Platzbedarf auf der Leiterplatte 2, also anschlußseitig, verringert werden, indem - wie Fig.5 zeigt - die Kontaktbereiche 6 der Reihen a,c und e anschlußseitig mit den Anschlußbereichen 9 der Reihen a,b und c verbunden werden. Dazu, d.h. zur Verringerung des anschlußseitigen Platzbedarfes bei beliebigen Teilbestückungen eines Steckverbinders, ist aber die Herstellung unterschiedlicher Verbindungen nötig. Um diese nicht durch separate Stanzvorgänge in aufwendiger Weise herstellen zu müssen, ist bei dem erfindungsgemäßen Verfahren vorgesehen, zur Herstellung von Gruppen mit einer unterschiedlichen Anzahl von Kontaktelementen unterschiedliche Schneidwerkzeuge in die Stanzeinrichtung einzuwechseln. Mittels dieser Schneidwerkzeuge werden unterschiedliche Verbindungen zwischen den Kontaktbereichen und den Anschlußbereichen bestimmter Kontaktelemente gestanzt, wobei zur Teilbestückung eines Steckverbinders lediglich mit einer bestimmten Anzahl von Kontaktelementen der jeweiligen Gruppe mit jeweils einem solchen Schneidwerkzeug die Verbindungen zwischen den Kontaktbereichen und einer der Anzahl dieser Kontaktbereiche entsprechenden Anzahl von Anschlußbereichen der bestimmten Kontaktelemente gestanzt werden. Gleichzeitig bei der Herstellung solcher unterschiedlicher Verbindungen werden - wie dies in Fig.6 durch die gestrichelt eingezeichneten Bereiche der in Fig.5 nicht belegten Kontaktreihen b und d erkennbar ist - die überflüssigen Kontakt- und Anschlußbereiche der nicht benutzten Kontaktelemente der jeweiligen Gruppe durch das jeweilige Schneidwerkzeug weggestanzt. Dieses Verfahren wird anhand von in den Fig. 7 bis 11 dargestellten teilbestückten Gruppen von Kontaktelementen mit unterschiedlichen Verbindungen im folgenden noch näher erläutert. In allen Fällen werden die unterschiedlichen Verbindungen durch jeweils ein von mehreren Stempeln gebildetes Stempelpaket 11 hergestellt, wobei die einzelnen Schneidstempel unterschiedliche Formen haben und jeweils durch eine Kreuzschraffur in den Figuren 7 bis 11 kenntlich gemacht sind. Demnach wird das Stempelpaket 11 immer in den die Kontaktbereiche 6 und die Verbindungsstiele 8 miteinander verbindenden, später in Kunststoff eingebetteten Zwischenbereich 7 in das Stanzwerkzeug eingewechselt und so ausgebildet, daß beim Stanzvorgang der Zwischenbereich bis auf die benötigten Verbindungen ausgestanzt wird. Bei der Ausführungsform in Fig.7 ist die Gruppe nur mit den Kontaktelementen der Reihen a,c,d und e belegt. Deren Kontaktbereiche 6 werden anschlußseitig mit den Reihen a,b,c und d verbunden, indem das Stempelpaket 11 bzw. dessen Einzelstempel so gestaltet sind, daß beim Stanzvorgang vier entsprechende Verbindungen 12 zwischen Steck- und Anschlußseite entstehen. Hier wird die Reihe a auf der Steckseite mit der Reihe a auf der Anschlußseite, die Reihe c auf der Steckseite mit der Reihe b auf der Anschlußseite, die Reihe d auf der Steckseite mit der Reihe c auf der Anschlußseite und die Reihe e auf der Steckseite mit der Reihe d auf der Anschlußseite verbunden. Es wird in diesem Fall also eine Verbindung der steckseitigen Reihen a,c,d und e anschlußseitig mit den vier aufeinanderfolgenden Reihen a,b,c und d hergestellt, so daß bei einer vierreihigen Gruppe anschlußseitig nur ein Platzbedarf für vier Reihen entsteht. Ebenso verhält es sich bei den Ausführungsformen nach den Fig.8 bis 10. In Fig.8 ist eine dreireihige Gruppe von Kontaktelementen vorgesehen, deren steckseitige Reihen a,c und e über entsprechende, beim Stanzvorgang hergestellte Verbindungen 13 anschlußseitig mit den aufeinanderfolgenden Reihen a,b und c verbunden sind. Die Einzelstempel des Stempelpakets 11a sind hier so gestaltet, daß die drei Verbindungen a-a, c-b und e-c zwischen Steck- und Anschlußseite hergestellt werden. Bei der vierreihigen Kontaktelementegruppe in Fig.9 werden durch das Stempelpaket 11b vier Verbindungen 14 zwischen Steck- und Anschlußseite hergestellt, nämlich die vier Verbindungen b-a, c-b, d-c und e-d zwischen Steck- und Anschlußseite. Die dreireihige Kontaktelemente-Gruppe in Fig. 10 weist drei Verbindungen 15, nämlich die Verbindungen b-a, c-b und d-c auf, welche z.B. durch ein Stempelpaket 11c aus dem Zwischenbereich 7 herausgestanzt werden. Es ist aber auch möglich, die Kontaktelemente-Gruppe in Fig.10 aus der Kontaktelemente-Gruppe in Fig.9 durch Entfernen der Reihen e und d zu bilden. Bei der Kontaktelemente-Gruppe in Fig.10 ist deutlich der anschlußseitig geringere Platzbedarf auf der Leiterplatte 2 gegenüber der dreireihigen Anordnung in Fig.3 erkennbar. Bei der in Fig.11 gezeigten zweireihigen Kontaktelemente-Gruppe sind die steckseitigen Reihen b und d anschlußseitig im Gegensatz zu den Fig.7 bis 10 nicht mit aufeinanderfolgenden Reihen, sondern mit der Reihe a und der Reihe c verbunden. Trotzdem ist hier der anschlußseitige Platzbedarf geringer als bei der ebenfalls zweireihigen Anordnung in Fig. 4. Die Kontaktelemente-Gruppe in Fig. 11 kann durch ein Stempelpaket 11d hergestellt oder aus der Kontaktelemente-Gruppe in Fig. 9 gewonnen werden. Die Verringerung des Platzbedarfes bei allen KontaktelementeGruppen der Fig. 7 bis 11 wird in vorteilhafter Weise durch die durch das erfindungsgemäße Verfahren hergestellten variablen Verbindungen 12-15 erreicht.In the case of a partial assembly of the connector with, for example, only three contact rows a, c, e (FIG. 3) or two contact rows b and d (FIG. 4), the contact and connection areas of the contacts which are not required are then, that is to say in the case of FIG. 3 to remove areas b and d and, in the case of FIG. 4, areas a, c and e. However, due to the fixed assignment of contact and connection areas, even with partial assembly on the connection side in FIG. 3, the space for the five-row arrangement ae and in FIG. 4, the space for a four-row arrangement ad is still required. In the case of a partial assembly of the connector, for example with three rows of contacts a, c and e, the space requirement on the printed circuit board 2, that is to say on the connection side, can be reduced by — as FIG. 5 shows — the contact areas 6 of the rows a, c and e on the connection side with the connection areas 9 of the rows a, b and c are connected. For this purpose, ie to reduce the space required on the connection side for any partial assembly of a connector, different connections are necessary. In order not to have to produce these in a complex manner by separate punching processes, the method according to the invention provides for different cutting tools to be inserted into the punching device in order to produce groups with a different number of contact elements. Using these cutting tools Different connections are punched between the contact areas and the connection areas of certain contact elements, the connections between the contact areas and a number of connection areas corresponding to the number of these contact areas corresponding to the number of these contact areas only being provided with a certain number of contact elements of the respective group with partial assembly of a connector Contact elements are punched. At the same time in the production of such different connections - as can be seen in FIG. 6 by the dashed areas of the contact rows b and d not occupied in FIG. 5 - the superfluous contact and connection areas of the unused contact elements of the respective group are identified by the respective group Cutting tool punched away. This method is explained in more detail below with reference to the partially populated groups of contact elements with different connections shown in FIGS. In all cases, the different connections are each produced by a stamp package 11 formed by a plurality of stamps, the individual cutting stamps having different shapes and each being identified by cross hatching in FIGS. 7 to 11. Accordingly, the stamp package 11 is always replaced in the intermediate area 7 connecting the contact areas 6 and the connecting rods 8, later embedded in plastic, and designed so that the intermediate area is punched out during the punching process except for the required connections. In the embodiment in FIG. 7, the group is only occupied with the contact elements of the rows a, c, d and e. Their contact areas 6 are connected on the connection side to the rows a, b, c and d by the stamp package 11 or its individual stamp are designed such that four corresponding connections 12 between the stamping process Plug and connection side arise. Here row a on the mating side with row a on the connection side, row c on the mating side with row b on the mating side, row d on the mating side with row c on the mating side and row e on the mating side connected to row d on the connection side. In this case, a connection of the plug-in rows a, c, d and e on the connection side with the four successive rows a, b, c and d is established, so that in a four-row group on the connection side only space is required for four rows. The same applies to the embodiments according to FIGS. 8 to 10. In FIG. 8, a three-row group of contact elements is provided, the rows a, c and e of which on the plug side are connected to the successive rows a, on the connection side via corresponding connections 13 produced during the stamping process. b and c are connected. The individual stamps of the stamp package 11a are designed here so that the three connections aa, cb and ec are made between the plug and connection side. In the four-row contact element group in FIG. 9, the stamp package 11b produces four connections 14 between the plug and connection side, namely the four connections ba, cb, dc and ed between the plug and connection side. The three-row contact element group in FIG. 10 has three connections 15, namely the connections ba, cb and dc, which are punched out of the intermediate region 7, for example by a stamp package 11c. However, it is also possible to form the contact element group in FIG. 10 from the contact element group in FIG. 9 by removing the rows e and d. In the case of the contact element group in FIG. 10, the smaller space requirement on the circuit board 2 compared to the three-row arrangement in FIG. 3 can be clearly seen. In the case of the two-row contact element group shown in FIG. 11, the rows b and d on the plug side are in contrast on the connection side 7 to 10 not connected with successive rows, but with row a and row c. In spite of this, the space requirement on the connection side is less than with the arrangement in FIG. 4, which is also in two rows. The contact element group in FIG. 11 can be produced by a stamp package 11d or obtained from the contact element group in FIG. 9. The reduction in space required for all contact element groups in FIGS. 7 to 11 is advantageously achieved by the variable connections 12-15 produced by the method according to the invention.

Claims (4)

Verfahren zur Herstellung von Kontaktelemente-Gruppen für um 90° abgewinkelte Steckverbinder in Einpreßtechnik, bei dem die Kontaktelemente in einer Stanzeinrichtung steckseitig mit einem Kontaktbereich und anschlußseitig mit einem Anschlußbereich ausgebildet werden, der einen rechtwinklig zur Steckrichtung verlaufenden Einpreßabschnitt aufweist und über Verbindungsstiele mit dem Kontaktbereich zusammenhängt,
dadurch gekennzeichnet, daß zur Herstellung von Gruppen mit einer unterschiedlichen Anzahl von Kontaktelementen (4) unterschiedliche Schneidwerkzeuge in die Stanzeinrichtung eingewechselt werden, daß mittels dieser Schneidwerkzeuge unterschiedliche Verbindungen zwischen den Kontaktbereichen (6) und den Anschlußbereichen (9) bestimmter Kontaktelemente (4) gestanzt werden, und daß zur Teilbestückung eines Steckverbinders lediglich mit einer bestimmten Anzahl von Kontaktelementen (4) der jeweiligen Gruppe mit jeweils einem solchen Schneidwerkzeug die Verbindungen zwischen den Kontaktbereichen (6) und einer der Anzahl dieser Kontaktbereiche entsprechenden Anzahl von Anschlußbereichen (9) der bestimmten Kontaktelemente (4) gestanzt und die überflüssigen Kontakt- und Anschlußbereiche (6,9) der nicht benutzten Kontaktelemente (4) der jeweiligen Gruppe gleichzeitig bei der Herstellung solcher unterschiedlicher Verbindungen durch das jeweilige Schneidwerkzeug weggestanzt werden.Method for producing contact element groups for press-in connectors angled by 90 °, in which the contact elements in a punching device are formed on the plug side with a contact area and on the connection side with a connection area which has a press-in section running at right angles to the plug direction and is connected to the contact area via connecting rods ,
characterized in that for the production of groups with a different number of contact elements (4) different cutting tools are exchanged in the punching device in that different connections between the contact areas (6) and the connection areas (9) of certain contact elements (4) are punched by means of these cutting tools , and that for the partial assembly of a connector only with a certain number of contact elements (4) of the respective group, each with such a cutting tool, the connections between the contact areas (6) and a number of connection areas (9) corresponding to the number of contact areas of the certain contact elements ( 4) punched and the superfluous contact and connection areas (6, 9) of the unused contact elements (4) of the respective group are punched out simultaneously by the respective cutting tool when producing such different connections. Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß die unterschiedlichen Verbindungen durch jeweils ein von mehreren Stempeln gebildetes Stempelpaket (11) hergestellt werden.Method according to claim 1,
characterized in that the different connections are each produced by a stamp package (11) formed by a plurality of stamps. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß das jeweilige Schneidwerkzeug in einen Zwischenbereich (7) zwischen den Kontaktbereichen (6) und den Verbindungsstielen (8) der Kontaktelemente (4) in das Stanzwerkzeug eingewechselt wird.The method of claim 1 or 2,
characterized in that the respective cutting tool is replaced in an intermediate region (7) between the contact regions (6) and the connecting rods (8) of the contact elements (4) in the punching tool. Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Verbindungen von Kontaktbereichen (6) bestimmter Kontaktelemente (4) anschlußseitig mit aufeinanderfolgenden Anschlußbereichen (9) hergestellt werden.Method according to one of the preceding claims,
characterized in that the connections of contact areas (6) of certain contact elements (4) are made on the connection side with successive connection areas (9).
EP94114229A 1993-09-24 1994-09-09 Method of making contact elements-groups for a connecting device Expired - Lifetime EP0645856B1 (en)

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DE4332636 1993-09-24

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DE59404665D1 (en) 1998-01-08
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