EP0353330B1 - Socket contact - Google Patents

Socket contact Download PDF

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Publication number
EP0353330B1
EP0353330B1 EP88112759A EP88112759A EP0353330B1 EP 0353330 B1 EP0353330 B1 EP 0353330B1 EP 88112759 A EP88112759 A EP 88112759A EP 88112759 A EP88112759 A EP 88112759A EP 0353330 B1 EP0353330 B1 EP 0353330B1
Authority
EP
European Patent Office
Prior art keywords
contact
socket
elements
contact elements
pair
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
EP88112759A
Other languages
German (de)
French (fr)
Other versions
EP0353330A1 (en
Inventor
Dieter Beer
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
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 Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Priority to EP88112759A priority Critical patent/EP0353330B1/en
Priority to DE8888112759T priority patent/DE3882983D1/en
Priority to US07/380,469 priority patent/US4952178A/en
Priority to CA000607431A priority patent/CA1306294C/en
Priority to JP1201509A priority patent/JPH02160384A/en
Publication of EP0353330A1 publication Critical patent/EP0353330A1/en
Application granted granted Critical
Publication of EP0353330B1 publication Critical patent/EP0353330B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/114—Resilient sockets co-operating with pins or blades having a square transverse section

Definitions

  • the invention relates to a socket contact for electrical plugs, with a box-like sheet metal frame, on which four contact elements are formed, of which two interacting contact elements are arranged one behind the other in the insertion direction of the plug, the rear contact element pair with its contact surfaces being offset by 90 ° to the contact surfaces of the front pair of contact elements.
  • Such a socket contact is known from US-A-4 076 369.
  • the contact security compared to socket contacts with only one contact level is already increased.
  • Relative ease of actuation is also already given, since, seen over the entire insertion length of the plug, the pulling and pushing forces only increase gradually due to the offset of the two contact levels. There remains only the relatively short push-in distance between the rear contact plane to the end of the insertion path, on which the force exerted by all four contact elements has to be overcome.
  • the present invention has for its object to provide a socket contact of the generic type, which is characterized by a particularly high contact reliability with relatively smooth operation.
  • each pair of contact elements is formed on the one hand by a relatively rigid contact tongue and on the other hand by a resilient contact arm.
  • the socket contact has a box-shaped sheet metal frame 1, the various functional elements to be described below being formed on the corresponding sheet metal blank by punching out.
  • a front contact plane is formed by two contact elements lying opposite one another, in the exemplary embodiment shown by a relatively rigid, small, basic contact tongue 2, which is pressed outward from the corresponding side wall of the box-shaped socket contact, and further with a resilient contact arm 3, which extends from a rear region of an opposite side wall of the box-shaped socket contact into the front region.
  • a second contact plane which is located behind the first contact plane in the plugging direction of the electrical connector, in the exemplary embodiment shown again formed by a relatively rigid contact tongue 4 and, opposite it, a resilient contact arm 5, which in this case differs from one front area of the corresponding side wall of the socket contact extends to the rear.
  • the contact elements 2 and 3 as well as 4 and 5 are each formed from all four side walls of the socket contact in such a way that the rear pair of contact elements with its contact surfaces formed by the contact tongue 4 and the contact arm 5 are offset by 90 ° to the contact surfaces, which form the front contact tongue 2 and the front contact arm 3.
  • This makes it possible to keep the stamping blank relatively simple and, in particular, leads to an arrangement which is nested with respect to the contact elements and is therefore also protected the way, for example, the rear contact plane with the contact tongue 4 and the resilient contact arm 5 is protected between a side wall of the socket contact and the rear region of the resilient contact arm 3 projecting forward of the front contact zone.
  • flaps 6 can be provided on corresponding side walls of the socket contact, under which the front effective area of the resilient contact arm 3 is protected.
  • a locking tab 7 for locking the socket contact in a housing and a stop wall 8 are also formed in the usual manner, the latter preventing the plug from being inserted too far.
  • the contact plane of the front contact elements 2, 3 lies only at a relatively short distance from the socket contact front edge, specifically measured from the front edge of the insulation region (not shown). In this way, extremely short pins can still be contacted with two contact elements. Pin lengths of approximately 2.5 mm and less can occur, with conventional pin lengths of approximately 5.8 mm. Based on this numerical example, the front contact level, for example, can lie 1.7 mm measured from the front edge of the insulation, while the second contact level is then approximately 3.8 mm behind the first contact level.
  • the socket contact according to the invention integrally formed from the box-shaped sheet metal frame, has one of the commercially available connections, for example a crimp connection or a cutting connection, for example with two mutually spaced insulation displacement areas, in order to connect an electrical conductor here using one of the common connection techniques can.
  • the requirement may arise to replace the latching lug 7 described above for latching the socket contact in a housing by another, conventional latch.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Die Erfindung betrifft einen Buchsenkontakt für elektrische Stecker, mit einem kastenartigen Blechrahmen, an dem vier Kontaktelemente ausgebildet sind, von denen jeweils zwei zusammenwirkende Kontaktelemente in Einsteckrichtung des Steckers abständig hintereinanderliegend angeordnet sind, wobei das hintere Kontaktelementenpaar mit seinen Kontaktflächen um 90° versetzt zu den Kontaktflächen des vorderen Kontaktelementenpaares liegt.The invention relates to a socket contact for electrical plugs, with a box-like sheet metal frame, on which four contact elements are formed, of which two interacting contact elements are arranged one behind the other in the insertion direction of the plug, the rear contact element pair with its contact surfaces being offset by 90 ° to the contact surfaces of the front pair of contact elements.

Ein derartiger Buchsenkontakt ist aus der US-A-4 076 369 bekannt. Dadurch, daß zwei in einem vorbestimmten Abstand hintereinanderliegende Kontaktebenen gebildet sind und ferner dadurch, daß die Kontaktflächen der beiden Kontaktelementenpaare um 90° versetzt zueinander liegen, ergibt sich bereits eine gute Kontaktierung des einzubringenden Steckers. Auch ist bereits die Kontaktsicherheit gegenüber Buchsenkontakten mit nur einer Kontaktebene erhöht. Auch eine relative Leichtgängigkeit der Betätigung ist bereits gegeben, da, gesehen über die ganze Einschublänge des Steckers, sich durch den Versatz der beiden Kontaktebenen die Zug- und Druckkräfte nur stufenweise steigern. Es verbleibt nur die relativ kurze Schubstrecke zwischen der hinteren Kontaktebene bis zum Ende des Einschubweges, auf der die von allen vier Kontaktelementen ausgeübte Kraft zu überwinden ist. Durch den Versatz der Kontaktflächen um 90° im Verhältnis zueinander ergibt sich auch eine Verbesserung bei einer etwaigen Schrägeinführung des Steckers, da in jedem Fall zumindest ein Kontaktelementenpaar davon unbeeinträchtigt bleibt und es ergibt sich auch die Möglichkeit einer baulich vereinfachten Ausgestaltung des Blechzuschnittes. Bei dem bekannten Buchsenkontakt gehen alle Kontaktfedern von den hinteren Seitenwänden des kastenartigen Rahmens aus und zwar derart, daß sowohl der vordere Kontakt wie auch der hintere Kontakt von jeweils identisch gleichen federnden Kontaktzungen gebildet werden. Dabei sind alle Kontaktzungen untereinander sehr ähnlich gestaltet. Bei Vibrationsbelastungen legen von daher auch alle Kontaktzungen ein sehr ähnliches Vibrationsverhalten an den Tag. Sie haben insbesondere einander sehr ähnliche Eigenresonanzen.Such a socket contact is known from US-A-4 076 369. The fact that two contact planes lying one behind the other at a predetermined distance and also in that the contact surfaces of the two pairs of contact elements are offset by 90 ° to one another already result in good contacting of the plug to be inserted. The contact security compared to socket contacts with only one contact level is already increased. Relative ease of actuation is also already given, since, seen over the entire insertion length of the plug, the pulling and pushing forces only increase gradually due to the offset of the two contact levels. There remains only the relatively short push-in distance between the rear contact plane to the end of the insertion path, on which the force exerted by all four contact elements has to be overcome. The offset of the contact surfaces by 90 ° in relation to one another also results in an improvement in the event of an inclined insertion of the plug, since in any case at least one pair of contact elements remains unaffected and there is also the possibility of a structurally simplified design of the sheet metal blank. In the known socket contact, all contact springs start from the rear side walls of the box-like frame in such a way that both the front contact and the rear contact are each formed by identically identical resilient contact tongues. All contact tongues are designed very similar to one another. When exposed to vibrations, all contact tongues therefore have a very similar vibration behavior on the day. In particular, they have very similar natural resonances.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Buchsenkontakt der gattungsgemäßen Art zu schaffen, der sich bei relativ leichtgängiger Betätigung durch eine besonders hohe Kontaktsicherheit auszeichnet.The present invention has for its object to provide a socket contact of the generic type, which is characterized by a particularly high contact reliability with relatively smooth operation.

Die erfindungsgemäße Lösung besteht darin, daß jedes Kontaktelementenpaar jeweils aus einer relativ starren Kontaktzunge einerseits sowie einem federnden Kontaktarm andererseits gebildet ist.The solution according to the invention consists in that each pair of contact elements is formed on the one hand by a relatively rigid contact tongue and on the other hand by a resilient contact arm.

Unter Beibehalt der relativ leichtgängigen Betätigungsmöglichkeit und unter Beibehalt der bekannten vorteilhaften Grundkonzeption mit zwei hintereinanderliegenden Kontaktebenen und einem Versatz der Kontaktflächen in diesen Kontaktebenen um 90° zueinander sind an der Bildung eines jeden der beiden Kontaktpaare bei dieser Ausgestaltung jeweils Kontaktelemente unterschiedlicher Ausgestaltung und damit unterschiedlichen Vibrationsverhaltens und damit auch unterschiedlicher Eigenresonanz beteiligt. Hieraus resultiert die besonders hohe Kontaktsicherheit.While maintaining the relatively smooth operation and while maintaining the known advantageous basic concept with two consecutive contact planes and an offset of the contact surfaces in these contact planes by 90 ° to one another, contact elements of different design and thus different vibration behavior and each are involved in the formation of each of the two contact pairs in this configuration thus also involved different self-resonance. This results in the particularly high level of contact reliability.

Weitere bevorzugte Ausgestaltungen sind in den Unteransprüchen gekennzeichnet.Further preferred configurations are characterized in the subclaims.

Ein Ausführungsbeispiel eines Buchsenkontaktes gemäß der Erfindung wird nachstehend unter Bezugnahme auf die Zeichnung näher beschrieben. Es zeigen

Figur 1
eine erste, zur Illustration teilweise gebrochene perspektivische Darstellung eines Buchsenkontaktes gemäß der Erfindung,
Figur 2
eine weitere perspektivische Darstellung des Buchsenkontaktes nach Figur 1, gesehen von einer anderen Seite.
An embodiment of a socket contact according to the invention is described below with reference to the drawing. Show it
Figure 1
a first perspective illustration of a socket contact according to the invention, partially broken for illustration,
Figure 2
a further perspective view of the socket contact of Figure 1, seen from another side.

Der Buchsenkontakt hat einen kastenartig zusammengebogenen Blechrahmen 1, wobei an dem entsprechenden Blechzuschnitt durch Ausstanzen die verschiedenen, nachfolgend näher zu beschreibenden Funktionselemente ausgebildet sind. So ist an diesem Buchsenkontakt, gesehen in Einsteckrichtung eines elektrischen Steckers, eine vordere Kontaktebene durch zwei einander gegenüberliegende Kontaktelemente ausgebildet, im dargestellten Ausführungsbeispiel durch eine relativ starre kleine grundete Kontaktzunge 2, die aus der entsprechenden Seitenwand des kastenförmigen Buchsenkontaktes nach innen herausgedrückt ist, sowie ferner mit einem federnden Kontaktarm 3, der sich von einem hinteren Bereich einer gegenüberliegenden Seitenwand des kastenförmigen Buchsenkontaktes in den vorderen Bereich erstreckt.The socket contact has a box-shaped sheet metal frame 1, the various functional elements to be described below being formed on the corresponding sheet metal blank by punching out. Thus, on this socket contact, seen in the direction of insertion of an electrical plug, a front contact plane is formed by two contact elements lying opposite one another, in the exemplary embodiment shown by a relatively rigid, small, basic contact tongue 2, which is pressed outward from the corresponding side wall of the box-shaped socket contact, and further with a resilient contact arm 3, which extends from a rear region of an opposite side wall of the box-shaped socket contact into the front region.

An dem Buchsenkontakt ist ferner eine zweite, in Steckrichtung des elektrischen Steckers abständig hinter der ersten Kontaktebene liegende Kontaktebene ausgebildet, im dargestellten Ausführungsbeispiel wiederum gebildet durch eine relativ starre Kontaktzunge 4 sowie, ihr gegenüberliegend, ein federnder Kontaktarm 5, der sich in diesem Fall von einem vorderen Bereich der entsprechenden Seitenwand des Buchsenkontaktes nach hinten erstreckt.On the socket contact there is also a second contact plane, which is located behind the first contact plane in the plugging direction of the electrical connector, in the exemplary embodiment shown again formed by a relatively rigid contact tongue 4 and, opposite it, a resilient contact arm 5, which in this case differs from one front area of the corresponding side wall of the socket contact extends to the rear.

Es sind bei dieser Ausgestaltung ferner die Kontaktelemente 2 und 3 sowie 4 und 5 jeweils aus allen vier Seitenwänden des Buchsenkontaktes so gebildet, daß das hintere Kontaktelementenpaar mit seinen von der Kontaktzunge 4 und dem Kontaktarm 5 gebildeten Kontaktflächen um 90° versetzt zu den Kontaktflächen liegt, die die vordere Kontaktzunge 2 und der vordere Kontaktarm 3 bilden. Dies ermöglicht es, den Stanzzuschnitt relativ einfach zu halten und führt insbesondere zu einer bezüglich der Kontaktelemente verschachtelten und damit auch geschützten Anordnung, da auf die Weise beispielsweise die hintere Kontaktebene mit der Kontaktzunge 4 und dem federnden Kontaktarm 5 geschützt zwischen einer Seitenwand des Buchsenkontaktes und dem hinteren Bereich des nach vorne ragenden federnden Kontaktarmes 3 der vorderen Kontaktzone liegt. In der vorderen Kontaktebene lassen sich dabei dank dieser Ausgestaltung an entsprechenden Seitenwänden des Buchsenkontaktes umzubiegende Lappen 6 vorsehen, unter denen dann der vordere Wirkbereich des federnden Kontaktarmes 3 geschützt liegt.In this embodiment, the contact elements 2 and 3 as well as 4 and 5 are each formed from all four side walls of the socket contact in such a way that the rear pair of contact elements with its contact surfaces formed by the contact tongue 4 and the contact arm 5 are offset by 90 ° to the contact surfaces, which form the front contact tongue 2 and the front contact arm 3. This makes it possible to keep the stamping blank relatively simple and, in particular, leads to an arrangement which is nested with respect to the contact elements and is therefore also protected the way, for example, the rear contact plane with the contact tongue 4 and the resilient contact arm 5 is protected between a side wall of the socket contact and the rear region of the resilient contact arm 3 projecting forward of the front contact zone. In the front contact plane, flaps 6 can be provided on corresponding side walls of the socket contact, under which the front effective area of the resilient contact arm 3 is protected.

An dem kastenartigen Blechrahmen des Buchsenkontaktes sind ferner in der üblichen Weise ein Rastlappen 7 für die Verrastung des Buchsenkontaktes in einem Gehäuse sowie eine Anschlagwand 8 ausgebildet, welch letztere ein zu weites Einstecken eine Steckers verhindert.On the box-like sheet metal frame of the socket contact, a locking tab 7 for locking the socket contact in a housing and a stop wall 8 are also formed in the usual manner, the latter preventing the plug from being inserted too far.

In zweckmäßiger Ausgestaltung liegt die Kontaktebene der vorderen Kontaktelemente 2, 3 in nur relativ geringem Abstand von der Buchsenkontaktvorderkante, und zwar gemessen von der Vorderkante des nicht dargestellten Isolationsbereiches an. Auf diese Weise können auch extrem kurze Stifte immerhin noch mit zwei Kontaktelementen kontaktiert werden. Es können dabei Stiftlängen von etwa 2,5 mm und weniger vorkommen, bei üblichen Stiftlängen von etwa 5,8 mm. Ausgehend von diesem Zahlenbeispiel kann beispielsweise die vordere Kontaktebene 1,7 mm gemessen von der Isolationsvorderkante an liegen, während die zweite Kontaktebene dann etwa 3,8 mm hinter der ersten Kontaktebene liegt.In an expedient embodiment, the contact plane of the front contact elements 2, 3 lies only at a relatively short distance from the socket contact front edge, specifically measured from the front edge of the insulation region (not shown). In this way, extremely short pins can still be contacted with two contact elements. Pin lengths of approximately 2.5 mm and less can occur, with conventional pin lengths of approximately 5.8 mm. Based on this numerical example, the front contact level, for example, can lie 1.7 mm measured from the front edge of the insulation, while the second contact level is then approximately 3.8 mm behind the first contact level.

In seinem hinteren Bereich hat der erfindungsgemäße Buchsenkontakt, einstückig aus dem kastenförmigen Blechrahmen mit ausgebildet, einen der handelsüblichen Anschlüsse, also beispielsweise einen Crimpanschluß oder einen Schneidanschluß, beispielsweise mit zwei abständig voneinander angeordneten Schneidklemmenbereichen, um hier mit einer der gängigen Anschlußtechniken einen elektrischen Leiter anschließen zu können. In dem einen oder anderen Ausgestaltungsfall kann sich dabei das Erfordernis einstellen, den vorstehend beschriebenen Rastlappen 7 für die Verrastung des Buchsenkontaktes in einem Gehäuse durch eine andere, übliche Raste zu ersetzen.In its rear area, the socket contact according to the invention, integrally formed from the box-shaped sheet metal frame, has one of the commercially available connections, for example a crimp connection or a cutting connection, for example with two mutually spaced insulation displacement areas, in order to connect an electrical conductor here using one of the common connection techniques can. In one or the other embodiment, the requirement may arise to replace the latching lug 7 described above for latching the socket contact in a housing by another, conventional latch.

Claims (4)

  1. A socket contact for electric plugs, with a box-like sheet metal frame (1) on which there are constructed four contact elements (2, 3; 4, 5) of which in each case two co-operating contact elements (2, 3; 4, 5) are disposed and are spaced apart seriatim in the direction in which the plug is pushed in, the rear pair of contact elements (4, 5) having their contact faces offset by 90° in relation to the contact faces of the front pair of contact elements (2, 3), characterised in that each pair of contact elements consists in each case of a relatively rigid contact tongue (2, 4) on the one hand and a springy contact arm (3, 5) on the other.
  2. A socket contact according to claim 1, characterised in that the front pair of contact elements (2, 3) is situated at just a slight distance from the front edged of the socket contact, measured from the insulation area.
  3. A socket contact according to claim 1, characterised in that the springy contact arm (3) of the front pair of contact elements (2, 3) starts from the rear portion of a side wall of the box-like frame (1), masking the rear contact plane.
  4. A socket contact according to claim 1, characterised in that the front contact end of the spring contact arm (3) of the front pair of contact elements (2, 3) is masked by lugs (6) formed on the box-like sheet metal frame (1).
EP88112759A 1988-08-05 1988-08-05 Socket contact Expired - Lifetime EP0353330B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP88112759A EP0353330B1 (en) 1988-08-05 1988-08-05 Socket contact
DE8888112759T DE3882983D1 (en) 1988-08-05 1988-08-05 SOCKET CONTACT.
US07/380,469 US4952178A (en) 1988-08-05 1989-07-17 Female electrical connector
CA000607431A CA1306294C (en) 1988-08-05 1989-08-03 Socket contact
JP1201509A JPH02160384A (en) 1988-08-05 1989-08-04 Sleeve contact for electric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88112759A EP0353330B1 (en) 1988-08-05 1988-08-05 Socket contact

Publications (2)

Publication Number Publication Date
EP0353330A1 EP0353330A1 (en) 1990-02-07
EP0353330B1 true EP0353330B1 (en) 1993-08-04

Family

ID=8199176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112759A Expired - Lifetime EP0353330B1 (en) 1988-08-05 1988-08-05 Socket contact

Country Status (5)

Country Link
US (1) US4952178A (en)
EP (1) EP0353330B1 (en)
JP (1) JPH02160384A (en)
CA (1) CA1306294C (en)
DE (1) DE3882983D1 (en)

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US8721376B1 (en) * 2012-11-01 2014-05-13 Avx Corporation Single element wire to board connector
US20140120786A1 (en) 2012-11-01 2014-05-01 Avx Corporation Single element wire to board connector
US9391386B2 (en) 2014-10-06 2016-07-12 Avx Corporation Caged poke home contact
JP6405235B2 (en) * 2014-12-29 2018-10-17 モレックス エルエルシー Female electrical terminals and connectors
US10027037B2 (en) * 2016-07-06 2018-07-17 Te Connectivity Corporation Terminal with reduced normal force
US10320096B2 (en) 2017-06-01 2019-06-11 Avx Corporation Flexing poke home contact
KR102011845B1 (en) * 2017-07-12 2019-08-19 몰렉스 엘엘씨 Poke-in Connector
US10594052B2 (en) * 2017-11-07 2020-03-17 Zierick Manufacturing Corporation SMT box receptacle with release levers
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US10826205B2 (en) * 2018-04-12 2020-11-03 Panduit Corp. Double wiping blade contact
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Also Published As

Publication number Publication date
US4952178A (en) 1990-08-28
CA1306294C (en) 1992-08-11
DE3882983D1 (en) 1993-09-09
EP0353330A1 (en) 1990-02-07
JPH02160384A (en) 1990-06-20

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