EP0452760A1 - Fiche à contact de protection avec une pièce moulée en forme de pont - Google Patents

Fiche à contact de protection avec une pièce moulée en forme de pont Download PDF

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Publication number
EP0452760A1
EP0452760A1 EP91105481A EP91105481A EP0452760A1 EP 0452760 A1 EP0452760 A1 EP 0452760A1 EP 91105481 A EP91105481 A EP 91105481A EP 91105481 A EP91105481 A EP 91105481A EP 0452760 A1 EP0452760 A1 EP 0452760A1
Authority
EP
European Patent Office
Prior art keywords
bridge
connecting pins
plug
molded part
pins
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Withdrawn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
EP91105481A
Other languages
German (de)
English (en)
Inventor
Michael Taller
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
Publication of EP0452760A1 publication Critical patent/EP0452760A1/fr
Withdrawn legal-status Critical Current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
    • 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  
    • H01R13/655—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • 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
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members

Definitions

  • the present invention relates to a safety plug according to the preamble of claims 1 and 2.
  • Plugs of this type are known and on the whole have also proven themselves. Basically, such protective contact plugs have the task of handling an electrical device, i.e. the connection of this device when plugging the connector into the power outlet does not become a risk that people may be at risk due to a so-called earth fault.
  • the manufacture and design of the safety plug are subject to strict requirements and regulations. In modern, especially automated mass production, special attention should be paid to ensuring that the conductor connections, i.e. the current conductors and the protective conductors, which are connected to the plug and which establish the electrical connection between the power plant on the one hand and the device on the other hand, provide an adequate safety distance Outside of the safety plug. Finally, there is a risk that individual wires of the conductor or during manufacture during insertion into the holes in the hollow cylindrical connecting pins Bend and tilt the connection sockets so that they protrude outwards from the finished plug. If this is not noticed, it can happen that the possibly protruding individual wires protrude through the surface of the molded injection plug or are so close to the outside that an earth fault occurs during handling.
  • the person who plugs the plug into the socket can suffer health damage that can even lead to death.
  • the finished earthing contact plugs are individually checked for their electrical safety using so-called contour testing devices.
  • the plug is inserted into a test form corresponding to its shape and electrically charged from the outside.
  • connectors with individual wires that protrude outwards or are too close apart can be eliminated.
  • this is associated with significant production costs, i.e. Testing costs.
  • the plug bridge 1 consists of a substantially flat, approximately diamond-shaped (see top view) base plate 20 made of hard-elastic plastic, and a grounding spring 30 which is positively and non-positively clamped on two diametrically opposite connection sides of the diametrically opposed diamond sides of the base plate 20 (see reference number 31 ) and runs across the underside 21 of the base plate 20 (see reference numeral 32).
  • the earthing spring 30 protrudes on both sides over the upper side 22 of the base plate 20, specifically in such a way - compare basic view - that vertically projecting legs 33, 34 result, between which a free space 11 is defined on the upper side 22 of the base plate 20.
  • One leg 33 of the earthing spring 30 forms a flat side web for said free space 11; the second leg 34 of the grounding spring 30 is formed and deformed so that a connection socket 35 is formed for the protective conductor connection.
  • the transverse clasp 32 of the earthing spring 30 has a tab 36 which, when the earthing spring 30 is mounted, engages and is bent through a corresponding slot in the base plate 20 (see supervision).
  • the plug bridge 1 described so far is equipped electrically as follows: On the underside 21 of the base plate 20 protrude at a standardized distance from one another and with a standardized length contact pins 40, 41 with which the plug is ultimately inserted into a mains socket.
  • the contact pins 40, 41 are seated in corresponding holes in the base plate 20 and they are (at the second end) extended to the rear so far that they protrude in the form of hollow cylindrical connecting pins 42, 43 into the interior of the space 11 between the legs 33, 34 of the grounding spring 30 .
  • the current conductors of a consumer line are mechanically connected, in particular clamped or crimped, with these connecting pins 42, 43.
  • the electrical system is ultimately formed by the protective conductor connected to the connecting socket 35 of the earthing spring 30 and the current conductor connected to the connecting pins 42, 43 of the contact pins 40, 41.
  • the pins 42, 43 of the current conductor and the connection socket 35 for the protective conductor are arranged approximately in a triangle to one another, the connecting line of the connection pins 42, 43 being directed perpendicular to the axis of the crossbar 32 of the grounding spring 30.
  • the plug bridge 1 described so far is state of the art.
  • the problems mentioned at the outset can occur, i.e. in the case of individual wires protruding from the side, it can happen that these extend outwards to, possibly even through the sprayed plug head.
  • the plug bridge 1 is designed and / or developed as explained and described below.
  • a separate molded part 50 is provided as an insertion aid, which has an approximately bone-shaped basic shape and a length such that it extends over both connecting pins 42, 43 for the current conductor.
  • These two connecting pins 42, 43 are thus connected to one another in a bridge-like manner, this bridge resting on the end on the connecting pins 42, 43, preferably via undercuts which are complementary to the diameter of the connecting pins 42, 43.
  • a conical through hole 52 is provided coaxially with these undercuts and thus coaxially with the connection pins 42, 43 (and the contact pins 40, 41).
  • the line ends of the current conductor can be inserted and captured safely and without problems.
  • the thickness of the molded part 50 is at least in the region of FIG conical through holes 52 selected so that bent and thus protruding individual wires safely disappear behind the upper edge of the respective through hole 52 or the molded part 50.
  • One solution - shown in the drawing - consists in that a projecting web 60 with an opening 61 is integrally formed between the connecting pins 42, 43 on the upper side 22 of the base plate 20, in particular is molded on during the manufacture of the base plate.
  • the bridge-like molded part 50 has on its underside a pair of opposing locking lugs 51, via which the molded part 50 can be pushed onto the web 60. If the dimensions and assignments between the web 60 with its opening 61 on the one hand and the molded part 50 or its latching lugs 51 on the other hand are appropriately selected or coordinated with one another, when the molded part 50 is plugged on, it rests on the web 60 and the latching lugs 51 clip into the opening on both sides 61 a.
  • the alternative solution - according to claim 2 - is practically a kind of mirror image variant.
  • the molded part has a projecting tab which can be inserted into a fork-shaped receptacle formed on the base plate 20.
  • the tab and the fork-shaped receptacle have complementary locking means so that a non-positive connection between the molded part on the one hand and the actual plug bridge on the other hand is also possible here.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
EP91105481A 1990-04-20 1991-04-06 Fiche à contact de protection avec une pièce moulée en forme de pont Withdrawn EP0452760A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904012581 DE4012581C2 (de) 1990-04-20 1990-04-20 Schutzkontaktstecker mit einem brückenartigen Formteil
DE4012581 1990-04-20

Publications (1)

Publication Number Publication Date
EP0452760A1 true EP0452760A1 (fr) 1991-10-23

Family

ID=6404715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105481A Withdrawn EP0452760A1 (fr) 1990-04-20 1991-04-06 Fiche à contact de protection avec une pièce moulée en forme de pont

Country Status (2)

Country Link
EP (1) EP0452760A1 (fr)
DE (1) DE4012581C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773606A3 (fr) * 1995-11-10 1998-05-27 Taller GmbH Fiche a contact de protection avec une aide d'entree sur la douille de raccordement du conducteur de protection
CN101515687B (zh) * 2008-02-19 2010-12-29 建通精密工业股份有限公司 具有接地弹片的三极电源插头内架

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222651C2 (de) * 1992-07-10 1994-11-17 Taller Gmbh Steckerbrücke für einen elektrischen Kontaktstecker
DE19929539A1 (de) * 1999-06-28 2001-01-18 Kazmierczak Gmbh Elektrische Schutzkontaktsteckerbrücke

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332034A2 (fr) * 1988-03-09 1989-09-13 Taller GmbH Pont pour fiche de sécurité comprenant broches creuses cylindriques pour conducteurs de courant et de terre
DE3839011A1 (de) * 1988-11-18 1990-05-23 Taller Gmbh Steckerbruecke fuer einen elektrischen geraetestecker mit mindestens einem phasen- und einem nulleiterstift

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807716C3 (de) * 1988-03-09 1997-01-16 Taller Gmbh Steckerbrücke für einen Schutzkontaktstecker mit hohlzylindrischen Anschlußstiften für die Stromleiter und den Schutzleiter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332034A2 (fr) * 1988-03-09 1989-09-13 Taller GmbH Pont pour fiche de sécurité comprenant broches creuses cylindriques pour conducteurs de courant et de terre
DE3839011A1 (de) * 1988-11-18 1990-05-23 Taller Gmbh Steckerbruecke fuer einen elektrischen geraetestecker mit mindestens einem phasen- und einem nulleiterstift

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773606A3 (fr) * 1995-11-10 1998-05-27 Taller GmbH Fiche a contact de protection avec une aide d'entree sur la douille de raccordement du conducteur de protection
CN101515687B (zh) * 2008-02-19 2010-12-29 建通精密工业股份有限公司 具有接地弹片的三极电源插头内架

Also Published As

Publication number Publication date
DE4012581A1 (de) 1991-10-24
DE4012581C2 (de) 1994-08-25

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