EP0099035A2 - Resilient contact for electrical plug and socket connections - Google Patents

Resilient contact for electrical plug and socket connections Download PDF

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Publication number
EP0099035A2
EP0099035A2 EP19830106431 EP83106431A EP0099035A2 EP 0099035 A2 EP0099035 A2 EP 0099035A2 EP 19830106431 EP19830106431 EP 19830106431 EP 83106431 A EP83106431 A EP 83106431A EP 0099035 A2 EP0099035 A2 EP 0099035A2
Authority
EP
European Patent Office
Prior art keywords
spring
bend
resilient
free end
leg
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.)
Withdrawn
Application number
EP19830106431
Other languages
German (de)
French (fr)
Inventor
Karl-Wilhelm Ing. grad. Zöller
Helmut Fries
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elco Europe GmbH
Elco Elektronik GmbH
Original Assignee
Elco Europe GmbH
Elco Elektronik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elco Europe GmbH, Elco Elektronik GmbH filed Critical Elco Europe GmbH
Publication of EP0099035A2 publication Critical patent/EP0099035A2/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs

Definitions

  • the invention relates to a spring contact for electrical plug connections with two single or multiple curved flat spring legs formed from a one-piece sheet metal blank, in the resilient areas of which contact surfaces are formed which lie opposite one another and between which a plug pin can be inserted for contacting and the non-resilient area of which is a common electrical one Connection is provided.
  • a spring contact of this type is known from DE-AS 1 129 580.
  • the sheet metal blank for this spring contact has two adjacent legs, one of which is longer than the other.
  • the long leg is then bent in an S-shape such that its free end is flush with that of the short leg, i.e. that now both legs have the same effective length.
  • Now both legs are bent in an interlocking manner in or parallel to the sheet metal cutting plane in such a way that the leg ends designed as contact surfaces lie opposite one another.
  • the invention has for its object to improve a spring contact for electrical connectors of the type mentioned so that the cost of materials is reduced and the manufacture is simplified.
  • the two spring legs are arranged side by side and that one of the two spring legs is provided at its free end with an in-plane bend, the length of which corresponds approximately to the width of the other spring leg, which has the bend Spring leg is bent such that the bend is opposite the free end of the other spring leg.
  • the solution according to the invention enables the material-saving. Production of a spring contact in the stamping process.
  • the width of the flat sheet metal blank is smaller than the grid dimension of 2.54 mm, so that such a spring contact can be used in connector strips for printed circuits.
  • the connector shown in Fig. 1 consists of the housing 1 and the spring contact 2. This spring contact is inserted with a connector 5 and 5a through an opening in the bottom of the housing 1 and secured against being pulled out.
  • the two spring legs 3 and 4 lie perpendicular to the plane of the drawing next to each other and have the common connection 5, the width of which corresponds to the width a of both spring legs 3 and 4.
  • the connection 5 can also be kept somewhat larger or smaller if necessary.
  • the spring contact 2 consists of differently shaped spring legs 3 and 4. They are produced by punching a band plate made of resilient material in such a way that a slot 9 is formed in the longitudinal direction of the band and a separation 10 is formed transversely thereto. Instead of the slot 9, only one separation can also be punched.
  • the .Trennung 10 is set so that the length of the spring leg 4 in approximately the desired length of the finished F e-Dersch grandchild corresponds to 4 (Fig. L).
  • the spring leg 3 is angled 7, which lies above the spring leg 4.
  • the contact surfaces 12 and 13 thus lie one above the other in the longitudinal direction of the spring contact 2 after this first manufacturing process.
  • the spring leg 3 is bent in an S-shape at its lower region, which is close to the connection 5.
  • the contact surface 12 is shifted downward.
  • the bending is carried out so that the contact surface 12 is at the height of the contact surface 13 and opposite.
  • the bend 7 of the spring leg 3 and the free end of the spring leg 4 are expediently bent slightly outwards in opposite directions, so that the plug pin 11 can be easily inserted into the spring contact 2 in the direction of arrow 6.
  • a point or line-shaped contact between spring contact 2 and plug pin 11 is achieved.
  • an area is provided as a web 14 through which the two spring legs 3 and 4 come to lie so far apart that the plug pin 11 can be inserted without hindrance.
  • the described design makes it possible to produce the spring contact 2 with a single tool, which first carries out the stamping process and then the bending process. All bending points can be created simultaneously during the bending process.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

A resilient contact for electrical plug and socket connections is produced from a flat sheet metal section such that two resilient limbs, lying side-by-side and connected at the root, are produced initially by stamping, the one resilient limb having a bend at its free end whose length corresponds approximately to the width of the other resilient limb and which engages over the free end of the other resilient limb. By corresponding bending of the one resilient limb from the plane of the sheet metal, the latter is shortened so that the bend is located opposite the free end of the other resilient limb. <IMAGE>

Description

Die Erfindung betrifft einen Federkontakt für elektrische Steckverbindungen mit zwei aus einem einstückigen Blechzuschnitt gebildeten ein- oder mehrfach gebogenen flachen Federschenkeln, in deren federnden Bereichen Kontaktflächen ausgebildet sind, die sich gegenüberliegen und zwischen denen zur Kontaktgabe ein Steckerstift einsteckbar ist und deren nichtfederndem Bereich ein gemeinsamer elektrischer Anschluß vorgesehen ist.The invention relates to a spring contact for electrical plug connections with two single or multiple curved flat spring legs formed from a one-piece sheet metal blank, in the resilient areas of which contact surfaces are formed which lie opposite one another and between which a plug pin can be inserted for contacting and the non-resilient area of which is a common electrical one Connection is provided.

Aus der DE-AS 1 129 580 ist ein Federkontakt dieser Art bekannt. Der Blechzuschnitt für diesen Federkontakt weist zwei nebeneinanderliegende Schenkel auf, von denen einer länger ausgebildet ist als der andere. Der lange Schenkel wird dann S-förmig derart gebogen, daß sein freies Ende mit dem des kurzen Schenkels bündig abschließt, d.h. daß nunmehr beide Schenkel die gleiche wirksame Länge haben. Nunmehr werden beide Schenkel in bzw. parallel zur Blechzuschnittebene in verschränkender Weis so verbogen, daß sich die als Kontaktflächen ausgebildeten Schenkelenden gegenüberliegen.A spring contact of this type is known from DE-AS 1 129 580. The sheet metal blank for this spring contact has two adjacent legs, one of which is longer than the other. The long leg is then bent in an S-shape such that its free end is flush with that of the short leg, i.e. that now both legs have the same effective length. Now both legs are bent in an interlocking manner in or parallel to the sheet metal cutting plane in such a way that the leg ends designed as contact surfaces lie opposite one another.

Die Herstellung dieses Federkontaktes ist deshalb materialaufwendig, weil praktisch der Blechstreifen, um den der kurze Schenkel kürzer gegenüber dem langen Schenkel ist, als Verschnitt wegfällt.The production of this spring contact is material-intensive because practically the sheet metal strip around which the short leg is shorter than the long leg than waste is eliminated.

Zudem ist die Herstellung des Federkontaktes kompliziert, weil nach dem S-förmigen Verbiegen des langen Schenkels auch noch beide Schenkel in bzw. parallel zu der Blechebene verschränkt werden müssen.In addition, the manufacture of the spring contact is complicated because after the S-shaped bending of the long leg both legs also have to be crossed in or parallel to the plane of the sheet metal.

Der Erfindung liegt die Aufgabe zugrunde, einen Federkontakt für elektrische Steckverbindungen der eingangs genannten Art so zu verbessern, daß der Materialaufwand verringert und die Herstellung vereinfacht wird.The invention has for its object to improve a spring contact for electrical connectors of the type mentioned so that the cost of materials is reduced and the manufacture is simplified.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die beiden Federschenkel nebeneinander angeordnet sind und daß einer der beiden Federschenkel an seinem freien Ende mit einer in seiner Ebene liegenden Abwinkelung versehen ist, deren Länge in etwa der Breite des anderen Federschenkels entspricht, wobei der die Abwinkelung aufweise Federschenkel derart abgebogen ist, daß die Abwinkelung dem freien Ende des anderen Federschenkels gegenüberliegt.This object is achieved in that the two spring legs are arranged side by side and that one of the two spring legs is provided at its free end with an in-plane bend, the length of which corresponds approximately to the width of the other spring leg, which has the bend Spring leg is bent such that the bend is opposite the free end of the other spring leg.

Die erfindungsgemäße Lösung ermöglicht die materialsparende . Herstellung eines Federkontaktes im Stanzverfahren. Die Breite des ebenen Blechzuschnittes ist kleiner als das Rastermaß von 2,54 mm, so daß ein derartiger Federkontakt in Steckerleisten für gedruckte Schaltungen verwendbar ist. Weiterhin ergibt sich der Vorteil, daß nach dem Stanzen des Blechzuschnittes nur noch ein Arbeitsgang erforderlich ist, bei dem der lange Schenkel S-förmig verbogen und gegebenenfalls die Abwinkelung des langen Federschenkels und das freie Ende des kurzen Federschenkels leicht auswärts gebogen werden, um die Einführung des Steckerstiftes in den Federkontakt zu erleichtern, wobei das Stanzen und Biegen mit einem Werkzeug hewirkt werden kann.The solution according to the invention enables the material-saving. Production of a spring contact in the stamping process. The width of the flat sheet metal blank is smaller than the grid dimension of 2.54 mm, so that such a spring contact can be used in connector strips for printed circuits. Furthermore, there is the advantage that, after punching the sheet metal blank, only one operation is required in which the long leg is bent in an S-shape and, if necessary, the bend of the long spring leg and the free end of the short spring leg are slightly bent outwards in order to introduce it to facilitate the plug pin in the spring contact, the punching and bending can be worked with a tool.

Anhand der Zeichnung wird ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigen

  • Figur 1 einen Querschnitt einer Steckverbindung mit dem Federkontakt nach der Erfindung und
  • Figur 2 den Federkontakt nach Fig. 1 nach dem Stanzvorgang und vor dem Biegevorgang des einen Federschenkels.
An exemplary embodiment of the invention is explained in more detail with reference to the drawing. Show it
  • 1 shows a cross section of a plug connection with the spring contact according to the invention and
  • 2 shows the spring contact according to FIG. 1 after the stamping process and before the bending process of the one spring leg.

Die in Fig. 1 dargestellte Steckverbindung besteht aus dem Gehäuse 1 und dem Federkontakt 2. Dieser Federkontakt wird mit einem Anschluß 5 und 5a durch eine öffnung im Boden des Gehäuses 1 gesteckt und gegen das Herausziehen gesichert. Die beiden Federschenkel 3 und 4 liegen senkrecht zur Zeichenebene gesehen nebeneinander und besitzen den gemeinsamen Anschluß 5, dessen Breite der Breite a beider Federschenkel 3 und 4 entspricht. Der Anschluß 5 kann bei Bedarf auch etwas größer oder kleiner gehalten sein.The connector shown in Fig. 1 consists of the housing 1 and the spring contact 2. This spring contact is inserted with a connector 5 and 5a through an opening in the bottom of the housing 1 and secured against being pulled out. The two spring legs 3 and 4 lie perpendicular to the plane of the drawing next to each other and have the common connection 5, the width of which corresponds to the width a of both spring legs 3 and 4. The connection 5 can also be kept somewhat larger or smaller if necessary.

Wie aus Fig. 2 ersichtlich, besteht der Federkontakt 2 aus unterschiedlich gestalteten Federschenkeln 3 und 4. Ihre Herstellung erfolgt, indem ein aus federndem Material bestehendes Bandblech derart gestanzt wird, daß in Längsrichtung des Bandes ein Schlitz 9 und quer dazu eine Trennung 10 entsteht. Anstelle des Schlitzes 9 kann ebenfalls nur eine Trennung gestanzt werden.As can be seen from Fig. 2, the spring contact 2 consists of differently shaped spring legs 3 and 4. They are produced by punching a band plate made of resilient material in such a way that a slot 9 is formed in the longitudinal direction of the band and a separation 10 is formed transversely thereto. Instead of the slot 9, only one separation can also be punched.

Die .Trennung 10 wird so gelegt, daß die Länge des Federschenkels 4 in etwa der gewünschten Länge des fertigen Fe-derschenkels 4 (Fig. l) entspricht. Durch diese Trennung 10 erhält der Federschenkel 3 eine Abwinkelung 7, die oberhalb des Federschenkels 4 liegt. Die Kontaktflächen 12 und 13 liegen damit nach diesem ersten Herstellungsvorgang in Längsrichtung des Federkontaktes 2 übereinander.The .Trennung 10 is set so that the length of the spring leg 4 in approximately the desired length of the finished F e-Dersch grandchild corresponds to 4 (Fig. L). As a result of this separation 10, the spring leg 3 is angled 7, which lies above the spring leg 4. The contact surfaces 12 and 13 thus lie one above the other in the longitudinal direction of the spring contact 2 after this first manufacturing process.

In einem zweiten Herstellungsvorgang wird der Federschenkel 3 an seinem unteren, dem Anschluß 5 naheliegenden Bereich S-förmig gebogen. Dadurch wird die Kontaktfläche 12 nach unten verschoben. Die Biegung wird dabei so durchgeführt, daß die Kontaktfläche 12 auf der Höhe der Kontaktfläche 13 und dieser gegenüberliegt. Zweckmäßig werden die Abwinkelung 7 des Federschenkels 3 und das freie Ende des Federschenkels 4 gegenläufig leicht auswärts gebogen, so daß der Steckerstift 11 in Richtung des Pfeiles 6 in den Federkontakt 2 leicht eingeführt werden kann. Außerdem wird dadurch ein punkt- bzw. linienförmiger Kontakt zwischen Federkontakt-2 und Steckerstift 11 erreicht. Zwischen den beiden Biegestellen der S-förmigen Biegung des Federschenkels 3 wird ein Bereich als Steg 14 vorgesehen, durch den die beiden Federschenkel 3 und 4 so weit auseinander zu liegen kommen, daß der Steckerstift 11 ohne Behinderung eingesteckt werden kann.In a second manufacturing process, the spring leg 3 is bent in an S-shape at its lower region, which is close to the connection 5. As a result, the contact surface 12 is shifted downward. The bending is carried out so that the contact surface 12 is at the height of the contact surface 13 and opposite. The bend 7 of the spring leg 3 and the free end of the spring leg 4 are expediently bent slightly outwards in opposite directions, so that the plug pin 11 can be easily inserted into the spring contact 2 in the direction of arrow 6. In addition, a point or line-shaped contact between spring contact 2 and plug pin 11 is achieved. Between the two bending points of the S-shaped bend of the spring leg 3, an area is provided as a web 14 through which the two spring legs 3 and 4 come to lie so far apart that the plug pin 11 can be inserted without hindrance.

Durch die beschriebene Gestaltung wird es möglich, den Federkontakt'2 mit einem einzigen Werkzeug herzustellen, daß zunächst den Stanzvorgang und anschließend den Biegevorgang durchführt. Beim Biegevorgang können sämtliche Biegestellen gleichzeitig erstellt werden.The described design makes it possible to produce the spring contact 2 with a single tool, which first carries out the stamping process and then the bending process. All bending points can be created simultaneously during the bending process.

Bei dem beschriebenen Federkontakt 2 ergibt sich ein für die Kontaktgabe mit dem Steckerstift 11 vorteilhaftes unterschiedliches Schwingungsverhalten der beiden Federschenkel 3 und 4. Dies rührt daher, daß im Bereich des Anschlusses 5 der eine Federschenkel 3 mehrfach gebogen ist, während der andere Federschenkel 4 garnicht oder, wie in Fig. 1 gezeichnet, nur einmal leicht abgebogen ist.In the spring contact 2 described, there is a difference which is advantageous for making contact with the plug pin 11 Liches vibration behavior of the two spring legs 3 and 4. This is due to the fact that in the area of the connection 5 one spring leg 3 is bent several times, while the other spring leg 4 is not at all or, as shown in Fig. 1, only slightly bent.

Claims (1)

Federkontakt für elektrische Steckverbindungen mit zwei aus einem einstückigen Blechzuschnitt gebildeten ein- oder mehrfach gebogenen flachen Federschenkeln, in deren federnden Bereichen Kontaktflächen ausgebildet sind, die sich gegenüberliegen und zwischen denen zur Kontaktgabe ein Steckerstift einsteckbar ist und in deren nichtferderndem Bereich ein gemeinsamer elektrischer Anschluß vorgesehen ist,
dadurch gekennzeichnet,
daß die beiden Federschenkel (3, 4) nebeneinander angeordnet sind und daß einer der beiden Federschenkel (3) an seinem freien Ende mit einer in seiner Ebene liegenden Abwinkelung (7) versehen ist, deren Länge in etwa der Breite des anderen Federschenkels (4) entspricht, wobei der die Abwinkelung aufweisende Federschenkel derart abgebogen ist, daß die Abwinkelung (7) dem freien Ende (8) des anderen Federschenkels (4) gegenüberliegt.Spring contact for electrical plug connections with two single or multiple curved flat spring legs formed from a one-piece sheet metal blank, in the resilient areas of which contact surfaces are formed which lie opposite one another and between which a plug pin can be inserted for contacting and in whose non-donating area a common electrical connection is provided ,
characterized,
that the two spring legs (3, 4) are arranged side by side and that one of the two spring legs (3) is provided at its free end with a bend (7) lying in its plane, the length of which is approximately the width of the other spring leg (4) corresponds, the spring leg having the bend being bent such that the bend (7) is opposite the free end (8) of the other spring leg (4).
EP19830106431 1982-07-03 1983-07-01 Resilient contact for electrical plug and socket connections Withdrawn EP0099035A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823224933 DE3224933C2 (en) 1982-07-03 1982-07-03 Spring contact for electrical plug connections
DE3224933 1982-07-03

Publications (1)

Publication Number Publication Date
EP0099035A2 true EP0099035A2 (en) 1984-01-25

Family

ID=6167552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830106431 Withdrawn EP0099035A2 (en) 1982-07-03 1983-07-01 Resilient contact for electrical plug and socket connections

Country Status (3)

Country Link
EP (1) EP0099035A2 (en)
JP (1) JPS5973870A (en)
DE (1) DE3224933C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148616A (en) * 1983-10-19 1985-05-30 Gen Electric Plc Electric socket connectors
GB2279823A (en) * 1993-06-30 1995-01-11 Yamaichi Electronics Co Ltd Resilient electrical contact
EP1901398A1 (en) * 2006-09-14 2008-03-19 Hager Electro GmbH & Co. KG Connector piece for creating an electric contact

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3324737A1 (en) 1983-07-08 1985-01-17 Allied Corp Contact spring and a method for its production
DE19639785C2 (en) * 1996-09-27 2001-06-13 Weidmueller Interface Busbar for terminal blocks, with a socket connector
DE19724581A1 (en) * 1997-06-11 1998-12-17 Wuerth Elektronik Gmbh & Co Kg Socket for printed circuit boards
DE10139972C1 (en) * 2001-08-21 2003-04-17 Phoenix Contact Gmbh & Co Electrical termination clamp has terminal plug containing external conductor termination element assembled relative to base body with contact pin by combined pivot and plug-in movement
DE10340332B3 (en) * 2003-08-29 2005-02-03 Phoenix Contact Gmbh & Co. Kg Electrical plug contact has spring legs designed to form second contact region for contacting contact element inserted between legs perpendicularly to legs' longitudinal direction
DE102005054590A1 (en) * 2005-11-14 2007-05-24 Phoenix Contact Gmbh & Co. Kg Electrical pluggable connector e.g. for circuit boards, has convex surfaces of spring limbs of contacts facing opposite one another

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129580B (en) * 1958-08-14 1962-05-17 Siemens Ag Plug contact spring for rows of contacts
DE1187323B (en) * 1963-10-19 1965-02-18 Sihn Kg Wilhelm Jun Socket for plug-in relay
NL132009C (en) * 1965-07-05
NL135701C (en) * 1969-06-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148616A (en) * 1983-10-19 1985-05-30 Gen Electric Plc Electric socket connectors
GB2279823A (en) * 1993-06-30 1995-01-11 Yamaichi Electronics Co Ltd Resilient electrical contact
EP1901398A1 (en) * 2006-09-14 2008-03-19 Hager Electro GmbH & Co. KG Connector piece for creating an electric contact
EP2278665A1 (en) * 2006-09-14 2011-01-26 Hager Electro GmbH & Co. KG Connector piece for creating an electric contact

Also Published As

Publication number Publication date
JPS5973870A (en) 1984-04-26
DE3224933A1 (en) 1984-01-05
DE3224933C2 (en) 1985-04-18

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Inventor name: FRIES, HELMUT

Inventor name: ZOELLER, KARL-WILHELM, ING. GRAD.