EP0773606B1 - Protective contact plug with insertion aid at the connection socket for the earth conductor - Google Patents

Protective contact plug with insertion aid at the connection socket for the earth conductor Download PDF

Info

Publication number
EP0773606B1
EP0773606B1 EP96115720A EP96115720A EP0773606B1 EP 0773606 B1 EP0773606 B1 EP 0773606B1 EP 96115720 A EP96115720 A EP 96115720A EP 96115720 A EP96115720 A EP 96115720A EP 0773606 B1 EP0773606 B1 EP 0773606B1
Authority
EP
European Patent Office
Prior art keywords
plug
contact plug
insertion aid
protective conductor
connection socket
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
EP96115720A
Other languages
German (de)
French (fr)
Other versions
EP0773606A2 (en
EP0773606A3 (en
Inventor
Thomas Waible
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.)
Taller GmbH
Original Assignee
Taller 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 Taller GmbH filed Critical Taller GmbH
Priority to EP98124117A priority Critical patent/EP0918375A1/en
Publication of EP0773606A2 publication Critical patent/EP0773606A2/en
Publication of EP0773606A3 publication Critical patent/EP0773606A3/en
Application granted granted Critical
Publication of EP0773606B1 publication Critical patent/EP0773606B1/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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H01R24/30—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/655—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth brace
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the present invention relates to a safety plug according to the preamble of claim 1.
  • a This type of protective contact plug is the subject of the patent DE 38 07 716 C2.
  • this insertion aid consists of the principle solution from a separate molded part that the Connection socket for the protective conductor is opposite; the in Patent DE 38 07 716 C2 disclosed concrete solution consists in that the insertion funnel directly on the corresponding web Plug bridge is formed, and so the connector for the Protective conductor is opposite.
  • the object of the present invention is the known one Plug bridge mechanically simplifying your Manufacturing continues to improve.
  • this principle solution has advantages that it is a self-contained structure as a plug bridge defines that when molding with plastic a very high Has stability.
  • the connector bridge 1 as shown essentially exists from a U-shaped molded part 10 made of hard elastic plastic.
  • the two legs 11, 12 of the U delimit a free space 13 and are via a connecting web 14 (base plate of the connector bridge 1) connected to each other.
  • the Stekker bridge described so far with regard to the basic mechanical shape 1 is electrically equipped as follows: On the outside the base plate 14 protrude at a standardized distance from each other and with standardized length contact pins 15 to the outside (with which the plug ultimately inserted into a power outlet). The contact pins 15 sit firmly in corresponding holes in the base plate 14 and they are extended (at the second end) on the back so far that they in the form of hollow cylindrical connecting pins 16 in the free space 13 of the U-shaped molded part 10 protrude. With these pins 16 ultimately become the current conductors of a consumer line mechanically connected, especially crimped or crimped.
  • the electrical system is completed by a protective conductor, the part of the consumer line with a connector 19 is connected.
  • the socket 19 of the protective conductor is part one on the outer sides of the legs 11, 12 of the U-shaped molded part lying earth spring 20, when inserting the safety plug into a mains socket with one in the following Device located coupling connects so that the Protective conductor of the consumer line and thus the device itself Have earth fault.
  • the plug bridge 1 described so far is state of the art.
  • molding this jumper for the purpose of finishing the Earthing contact plug can now cause problems that it is with single wires protruding from the side of the conductor and the protective conductor can occur that this to the outside through the molded plug head and thus a source of danger form.
  • a web 21 which is fixed to the two Legs 11, 12 is connected.
  • the web 21 runs parallel to Base plate (connecting web) 14 and it is the connector 19 for the protective conductor opposite; the web 21 thus forms a roofing for the connecting socket 19.
  • the web 21 forms above it out together with the two legs 11, 12 and the base plate 14 a self-contained square module.
  • An essential partial feature of the web 21 according to the invention is a conical lying coaxial to the associated socket 19 Through hole 24, the smaller diameter of the end face the connection socket 19 is opposite. This results in free Side of the web 21 towards a funnel-shaped extension over which the stripped cable end of the protective conductor is easy and safe can be inserted into the socket 19.
  • the protective conductor can thus be safely using the L-shaped Molding 21 or the conical through hole 24 insert and fix, for example by squeezing or crimp.

Landscapes

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

Description

Die vorliegende Erfindung bezieht sich auf einen Schutzkontaktstecker nach dem Oberbegriff des Patentanspruchs 1. Ein Schutzkontaktstecker dieser Art ist Gegenstand des Patents DE 38 07 716 C2.The present invention relates to a safety plug according to the preamble of claim 1. A This type of protective contact plug is the subject of the patent DE 38 07 716 C2.

Auch wenn sich dieser Stecker bereits außerordentlich gut bewährt und weitgehend durchgesetzt hat, so hat es sich doch gezeigt, daß noch Modifikationen möglich sind, und zwar im Hinblick auf die sogenannte Einführhilfe für den Schutzleiteranschluß der Verbraucherleitung. Bei der konstruktiven Lösung nach dem Patent DE 38 07 716 C2 besteht diese Einführhilfe von der Prinziplösung her aus einem separaten Formteil, das der Anschlußbuchse für den Schutzleiter gegenüber liegt; die im Patent DE 38 07 716 C2 offenbarte konkrete Lösung besteht darin, daß der Einführtrichter direkt am entsprechenden Steg der Steckerbrücke angeformt ist, und so der Anschlußbuchse für den Schutzleiter gegenüber liegt.Even if this connector has already proven itself extremely well and has largely prevailed, it has been shown that modifications are still possible with regard to on the so-called insertion aid for the protective conductor connection the consumer line. With the constructive solution According to the patent DE 38 07 716 C2, this insertion aid consists of the principle solution from a separate molded part that the Connection socket for the protective conductor is opposite; the in Patent DE 38 07 716 C2 disclosed concrete solution consists in that the insertion funnel directly on the corresponding web Plug bridge is formed, and so the connector for the Protective conductor is opposite.

Die Aufgabe der vorliegenden Erfindung besteht darin, die vorbekannte Steckerbrücke mechanisch unter Vereinfachung ihrer Herstellung weiter zu verbessern.The object of the present invention is the known one Plug bridge mechanically simplifying your Manufacturing continues to improve.

Die Lösung dieser Aufgabe wird Anspruch 1 definiert. The solution to this problem is Claim 1 defined.

Diese Prinziplösung hat statisch gesehen insoweit Vorteile, daß sie ein in sich geschlossenes Gebilde als Steckerbrücke definiert, das beim Umspritzen mit Kunststoff eine sehr hohe Stabilität aufweist. From a static point of view, this principle solution has advantages that it is a self-contained structure as a plug bridge defines that when molding with plastic a very high Has stability.

Die Steckerbrücke 1 gemäß der Darstellung besteht im wesentlichen aus einem U-förmigen Formteil 10 aus hartelastischem Kunststoff. Die beiden Schenkel 11, 12 des U begrenzen einen Freiraum 13 und sind über einen Verbindungssteg 14 (Grundplatte der Steckerbrücke 1) miteinander verbunden.The connector bridge 1 as shown essentially exists from a U-shaped molded part 10 made of hard elastic plastic. The two legs 11, 12 of the U delimit a free space 13 and are via a connecting web 14 (base plate of the connector bridge 1) connected to each other.

Die soweit bezüglich der mechanischen Grundform beschriebene Stekkerbrücke 1 ist elektrisch wie folgt bestückt: An der Außenseite der Grundplatte 14 ragen in genormten Abstand zueinander und mit genormter Länge Kontaktstifte 15 nach außen (mit denen der Stecker letztlich in eine Netzsteckdose eingeführt wird). Die Kontaktstifte 15 sitzen fest in entsprechenden Bohrungen der Grundplatte 14 und sie sind (am zweiten Ende) rückseitig soweit verlängert, daß sie in Form von hohlzylindrischen Anschlußstiften 16 in den Freiraum 13 des U-förmigen Formteils 10 ragen. Mit diesen Anschlußstiften 16 werden letztlich die Stromleiter einer Verbraucherleitung mechanisch verbunden, insbesondere angecrimpt oder angequetscht.The Stekker bridge described so far with regard to the basic mechanical shape 1 is electrically equipped as follows: On the outside the base plate 14 protrude at a standardized distance from each other and with standardized length contact pins 15 to the outside (with which the plug ultimately inserted into a power outlet). The contact pins 15 sit firmly in corresponding holes in the base plate 14 and they are extended (at the second end) on the back so far that they in the form of hollow cylindrical connecting pins 16 in the free space 13 of the U-shaped molded part 10 protrude. With these pins 16 ultimately become the current conductors of a consumer line mechanically connected, especially crimped or crimped.

Das elektrische System wird durch einen Schutzleiter vervollständigt, der als teil der Verbraucherleitung mit einer Anschlußbuchse 19 verbunden ist. Die Anschlußbuchse 19 des Schutzleiters ist Teil einer an den Außenseiten der Schenkel 11, 12 des U-förmigen Formteils liegenden Erdungsfeder 20, die beim Einstecken des Schutzkontaktsteckers in eine Netzsteckdose diese mit einer sich im anschließenden Gerät befindlichen Kupplung verbindet, so daß der Schutzleiter der Verbraucherleitung und damit das Gerät selbst Erdschluß haben.The electrical system is completed by a protective conductor, the part of the consumer line with a connector 19 is connected. The socket 19 of the protective conductor is part one on the outer sides of the legs 11, 12 of the U-shaped molded part lying earth spring 20, when inserting the safety plug into a mains socket with one in the following Device located coupling connects so that the Protective conductor of the consumer line and thus the device itself Have earth fault.

Die soweit beschriebene Steckerbrücke 1 ist Stand der Technik. Beim Umspritzen dieser Steckerbrücke zwecks Endfertigung des Schutzkontaktsteckers können nun Probleme dahingehend auftreten, daß es bei seitlich abstehenden Einzeldrähtchen der Stromleiter und des Schutzleiters vorkommen kann, daß diese bis nach außen durch den gespritzten Steckerkopf reichen und somit eine Gefahrenquelle bilden.The plug bridge 1 described so far is state of the art. When molding this jumper for the purpose of finishing the Earthing contact plug can now cause problems that it is with single wires protruding from the side of the conductor and the protective conductor can occur that this to the outside through the molded plug head and thus a source of danger form.

Um dieses Risiko gänzlich auszuschalten und sicher zu gewährleisten, daß die Einzeldrähtchen sicher eingefangen werden, ist die Steckerbrücke 1 mit der Erdungsfeder 20 dem Patent DE 38 07 716 C2 gemäß so ausgebildet, daß den Anschlußstiften 16 und der Anschlußbuchse 19 eine konische Einführhilfe für die Leiterenden der Stromleiter und des Schutzleiters vorgesetzt ist. Gemäß der vorliegenden Weiterbildung ist diese Einführhilfe für den Schutzleiter wie folgt verifiziert:In order to completely eliminate this risk and ensure it safely, that the individual wires are caught safely is the Plug bridge 1 with the grounding spring 20, the patent DE 38 07 716 C2 formed in such a way that the connecting pins 16 and the connecting socket 19 a conical insertion aid for the conductor ends of the Current conductor and the protective conductor is provided. According to the present Further training is this introductory aid for the protective conductor verified as follows:

Zwischen den beiden das U-förmige Formteil 10 begrenzenden Schenkeln 11, 12 erstreckt sich ein Steg 21, der fest mit den beiden Schenkeln 11, 12 verbunden ist. Der Steg 21 verläuft parallel zur Grundplatte (Verbindungssteg) 14 und er liegt der Anschlußbuchse 19 für den Schutzleiter gegenüber; der Steg 21 bildet somit eine Überdachung für die Anschlußbuchse 19. Der Steg 21 bildet darüber hinaus gemeinsam mit den beiden Schenkeln 11, 12 und der Grundplatte 14 ein in sich geschlossenes viereckiges Modul.Between the two legs delimiting the U-shaped molded part 10 11, 12 extends a web 21 which is fixed to the two Legs 11, 12 is connected. The web 21 runs parallel to Base plate (connecting web) 14 and it is the connector 19 for the protective conductor opposite; the web 21 thus forms a Roofing for the connecting socket 19. The web 21 forms above it out together with the two legs 11, 12 and the base plate 14 a self-contained square module.

Ein wesentliches Teilmerkmal des erfindungsgemäßen Stegs 21 ist eine koaxial zur zugehörigen Anschlußbuchse 19 liegende konische Durchgangsbohrung 24, deren kleinerer Durchmesser der Stirnseite der Anschlußbuchse 19 gegenüber liegt. So ergibt sich zur freien Seite des Stegs 21 hin eine trichterförmige Erweiterung, über die sich das abisolierte Leitungsende des Schutzleiters leicht und sicher in die Anschlußbuchse 19 einführen läßt. An essential partial feature of the web 21 according to the invention is a conical lying coaxial to the associated socket 19 Through hole 24, the smaller diameter of the end face the connection socket 19 is opposite. This results in free Side of the web 21 towards a funnel-shaped extension over which the stripped cable end of the protective conductor is easy and safe can be inserted into the socket 19.

Für den Fall, daß wider Erwarten doch einmal ein Einzeldrähtchen des Schutzleiters abknicken und abstehen sollte, ist die Materialstärke des L-förmigen Formteils 21 im Bereich der Durchgangsbohrung 24 so gewählt, daß - der Länge der Abisolierung entsprechend - dieses Einzeldrähtchen sicher hinter der Oberkante der Durchgangsbohrung 24 verschwindet.In the event that, contrary to expectations, a single wire of the protective conductor should bend and stick out is the material thickness of the L-shaped molding 21 in the area of the through hole 24 chosen so that - the length of the stripping - this single wire safely behind the upper edge of the Through hole 24 disappears.

Der Schutzleiter läßt sich somit sicher mit Hilfe des L-förmigen Formteils 21 beziehungsweise der konischen Durchgangsbohrung 24 einführen und fixieren, beispielsweise durch quetschen beziehungsweise crimpen.The protective conductor can thus be safely using the L-shaped Molding 21 or the conical through hole 24 insert and fix, for example by squeezing or crimp.

Claims (1)

  1. Plug bridge (1) for a safety contact plug for electrical appliances to be connected to a mains socket, with an essentially U-shaped basic moulding (10) for receiving and fixing contact pins (15) for the current conductors and a connecting sleeve (19) for the protective conductor, which is provided with a guide funnel,
    characterised
    in that the guide funnel is provided with a web of hard elastic material running between and connecting the arms delimiting the U-shaped basic moulding (10), which is arranged as an integral constituent part of the plug bridge (1) parallel to the base plate (10) and having a material thickness in the region of the through drilling which is such that any individual small break-away wires disappear behind the upper edge of the through drilling, thus forming a closed, rectangular module.
EP96115720A 1995-11-10 1996-10-01 Protective contact plug with insertion aid at the connection socket for the earth conductor Expired - Lifetime EP0773606B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98124117A EP0918375A1 (en) 1995-11-10 1996-10-01 Plug insert for a connector with earthing contact and with an introduction cone associated with the connection socket of the protective contact

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543235A DE19543235C1 (en) 1995-11-10 1995-11-10 Earthing contact plug with earth wire connection bush insertion aid
DE19543235 1995-11-10

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP98124117A Division EP0918375A1 (en) 1995-11-10 1996-10-01 Plug insert for a connector with earthing contact and with an introduction cone associated with the connection socket of the protective contact
EP98124117.7 Division-Into 1998-12-18

Publications (3)

Publication Number Publication Date
EP0773606A2 EP0773606A2 (en) 1997-05-14
EP0773606A3 EP0773606A3 (en) 1998-05-27
EP0773606B1 true EP0773606B1 (en) 2001-08-08

Family

ID=7777933

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98124117A Ceased EP0918375A1 (en) 1995-11-10 1996-10-01 Plug insert for a connector with earthing contact and with an introduction cone associated with the connection socket of the protective contact
EP96115720A Expired - Lifetime EP0773606B1 (en) 1995-11-10 1996-10-01 Protective contact plug with insertion aid at the connection socket for the earth conductor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98124117A Ceased EP0918375A1 (en) 1995-11-10 1996-10-01 Plug insert for a connector with earthing contact and with an introduction cone associated with the connection socket of the protective contact

Country Status (2)

Country Link
EP (2) EP0918375A1 (en)
DE (2) DE19543235C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502005005446D1 (en) 2004-04-21 2008-11-06 Kissel & Wolf Gmbh Method for fixing a textile surface image to a holder and device for carrying out this method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538625A1 (en) * 1982-12-23 1984-06-29 Cemrep Plug with pins for an electrical power connection
DE8802047U1 (en) * 1988-02-17 1988-03-31 Schaar, Ingrid, 7517 Waldbronn Electrical plug contact
DE8817241U1 (en) * 1988-03-09 1995-05-11 Taller Gmbh, 76337 Waldbronn Earthing contact plug with jumper and hollow cylindrical connecting pins for the current conductor and the protective conductor
DE3807716C3 (en) * 1988-03-09 1997-01-16 Taller Gmbh Plug bridge for a protective contact plug with hollow cylindrical connection pins for the current conductor and the protective conductor
EP0391298B1 (en) * 1989-04-07 1994-08-24 Taller GmbH Connector with protective contact and with a lead-in help coordinated to the connection socket of the protective contact
DE4012583C2 (en) * 1990-04-20 1996-11-28 Taller Gmbh Earthing contact plug with base plate and earthing spring
DE4012581C2 (en) * 1990-04-20 1994-08-25 Taller Gmbh Earthing contact plug with a bridge-like molded part

Also Published As

Publication number Publication date
EP0773606A2 (en) 1997-05-14
DE59607446D1 (en) 2001-09-13
EP0918375A1 (en) 1999-05-26
EP0773606A3 (en) 1998-05-27
DE19543235C1 (en) 1996-12-19

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