EP0332034B1 - Pont pour fiche de sécurité comprenant broches creuses cylindriques pour conducteurs de courant et de terre - Google Patents

Pont pour fiche de sécurité comprenant broches creuses cylindriques pour conducteurs de courant et de terre Download PDF

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Publication number
EP0332034B1
EP0332034B1 EP19890103548 EP89103548A EP0332034B1 EP 0332034 B1 EP0332034 B1 EP 0332034B1 EP 19890103548 EP19890103548 EP 19890103548 EP 89103548 A EP89103548 A EP 89103548A EP 0332034 B1 EP0332034 B1 EP 0332034B1
Authority
EP
European Patent Office
Prior art keywords
bridge
plug
pins
terminal pins
conductor
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
EP19890103548
Other languages
German (de)
English (en)
Other versions
EP0332034A3 (fr
EP0332034B2 (fr
EP0332034A2 (fr
Inventor
Michael Taller
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6349243&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0332034(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE3807716A external-priority patent/DE3807716C3/de
Application filed by Taller GmbH filed Critical Taller GmbH
Publication of EP0332034A2 publication Critical patent/EP0332034A2/fr
Publication of EP0332034A3 publication Critical patent/EP0332034A3/fr
Application granted granted Critical
Publication of EP0332034B1 publication Critical patent/EP0332034B1/fr
Publication of EP0332034B2 publication Critical patent/EP0332034B2/fr
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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
    • 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
    • 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
    • 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 plug bridge of a safety plug according to the preamble of patent claim 1.
  • Plug bridges of this type are known (DE-U 87 16 567) and on the whole they have also proven themselves. Basically, such protective contact plugs have the task of handling an electrical device, i. H. the connection of this device when plugging the connector into the power outlet does not become a danger that people may be at risk due to a so-called earth fault.
  • the person who puts the plug in 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 placed in a test form that corresponds 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. H. Associated testing costs.
  • Protective contact plugs with two current conductors and a protective conductor are designed so-called protective caps, which are plugged onto the plug bridge before the protective contact plug is overmolded in order to secure the space around the connection points of the current conductors and the protective conductor to the outside.
  • This protective cap is designed in accordance with the contour of the plug bridge; it is plugged over the connector bridge and stands flush against the inner floor surface.
  • the protective cap is non-positively latched onto the connector bridge before it is overmolded with plastic using two locking lugs that project laterally over the connector bridge.
  • This protective cap is a relatively complicated molded part, i. H. the injection mold is expensive.
  • care is taken only afterwards to ensure that conductor ends which have not been properly inserted do not cause any damage.
  • the object on which the present invention is based is to simplify the insertion funnel for the protective conductor and, in a preferred further development, to design it in such a way that it can be used as a rest for the insertion funnel of the current conductor.
  • Insertion funnels to facilitate assembly and manufacturing in the manufacture of two-pin power plugs are also known in principle from FR-A-25 38 625. These insertion funnels are also realized by molded parts protruding from the connector bridge. It is a two-pin power plug.
  • the 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 connected to one another via a connecting web 14 (transverse web of the U).
  • the connecting web 14 protrudes laterally on both sides of the U and has an approximately trapezoidal outer contour, the shorter diagonal of which is dimensioned in accordance with the standardized spacing of the contact pins or contact sockets of the mains socket.
  • the plug bridge 1 described so far with regard to the basic mechanical form is electrically equipped as follows: On the outside of the connecting web 14, at the aforementioned standardized distance from one another and with a standardized length, contact pins 15 project outwards (with which the plug is ultimately inserted into a mains socket). The contact pins 15 are firmly seated in corresponding bores of the connecting web 14 and they are (at the second end) extended to the rear so far that they protrude into the interior of the U-shaped molded part 10 in the form of hollow cylindrical connecting pins 16. With these connecting pins 16, the conductor ends of a consumer line (cf. FIGS. 2-17) are ultimately mechanically connected, in particular crimped or crimped.
  • the electrical system is completed by a protective conductor which is connected as part of the consumer line 17 to a third pin 19 on the inside of the connecting web 14.
  • the connection pins 16 of the current conductor and the connection pin 19 of the protective conductor are arranged approximately in a triangle with respect to one another.
  • the pin 19 of the protective conductor is connected to arranged on the outer sides of the legs 11, 12 of the U-shaped molded part 10 contact springs 20 which, when the protective contact plug is plugged into a mains socket, connects the latter to a coupling located in the device to be connected, so that the protective conductor is connected Consumer line 17 and thus the device itself have a ground fault.
  • the plug bridge 1 described so far is state of the art. When encapsulating this plug bridge for the purpose of finishing the protective contact plug, the problems mentioned at the outset can now occur. H. If the individual wires of the current conductor and the protective conductor protrude to the side, it can happen that they extend outwards through the molded plug head.
  • the connector bridge 1 is designed and / or developed as explained and described below.
  • a molded part 21 directed toward this connecting pin 19 is injection-molded as an integral part of the injection mold for the U-shaped 10.
  • This molded part 21 extends beyond the connecting pin 19 and is supported by a support leg 22 on the connecting web 14 (transverse web of the U or floor of the free space).
  • the connecting pin 19 for the protective conductor is thus completely bridged, the part of the molded part 21 protruding from the leg 11 on the free front edge, ie. H. the free end face, if necessary, only needs to be supported on one or both sides.
  • An essential partial feature of the molded part 21 is a conical through hole 23, namely coaxial to the associated pin 19.
  • the smaller diameter of this through hole 23 lies opposite the end face of the pin 19, so that it has a funnel-shaped extension towards the free side of the molded part 21.
  • the stripped cable end of the protective conductor can be inserted easily and safely via this funnel-shaped extension, and without a single wire of the protective conductor being bent.
  • the material thickness of the molded part 21 is selected at least around the through hole 23 such that - depending on the length of the stripping - this single wire is securely behind the upper edge of the through hole 23 disappears.
  • the protective conductor can thus be securely inserted and fixed with the aid of the molded part 21 or the conical through hole 23, for example by squeezing (crimping).
  • an analog molded part 30 is provided as an insertion aid for the current conductors.
  • This further molded part 30 has an approximately bone-shaped basic shape and a length such that it extends over both connecting pins 16 for the current conductors.
  • These two connecting pins 16 are thus connected to one another in a bridge-like manner parallel to the connecting web 14 of the U, this bridge resting at the end on the connecting pins 16, preferably via undercuts 31 which are complementary to the diameter of the connecting pins 16.
  • Coaxial to these undercuts 31 and thus coaxial to the connecting pins 16 (and the Contact pins 15) are each provided with a conical through hole 32.
  • the line ends of the current conductors can also be inserted safely and without problems, as with the protective conductor.
  • the thickness of the molded part 30 is selected at least in the area of the through holes 32 such that bent and thus protruding individual wires safely disappear behind the upper edge of the respective through hole 32.
  • a bracket 33 can optionally be molded onto the connecting web 14 of the U-shaped molded part 10, which is designed such that it carries this molded part 30 placed on the connecting pins 16 from below.
  • the molded part 21 for the protective conductor is formed at the transition between the part projecting beyond the connecting pin 19 and the support leg 22, that a locking lug 40 is formed, on which the bridge-like molded part 30 can snap into place.
  • the support leg 22, the console 33, and the central part of the bridge-like molded part 30 can be designed to be complementary to one another via shoulders and one or the detent 40 on the support foot 22 such that the bridge-like molded part 30 in the central region is clamped positively and non-positively.
  • the molded part 21 for the connecting pin 16 of the protective conductor is only supported laterally via support feet 22 - this corresponds to the drawing - the bridge-like molded part 30 is on the side facing the leg 12 in the center of the console 33 and on the other side via a spaced apart Stand on pair of support lugs 22.
  • the bridge-like molded part 30 engages under the other molded part 21, which is molded onto the plug bridge.
  • a corresponding bevel 34 is provided on the bracket 33 (see section A - B).
  • the plug bridge 1 with the molded part 21 for the connecting pin 16 of the protective conductor and with the molded part 30 for the connecting pins 16 of the current conductor forms a form-fitting and non-positively joined assembly unit. This is - after the stripped conductor ends of the current conductor and the protective conductor are inserted into the hollow cylindrical connecting pins - overmoulded with soft elastic plastic, so that a finished protective contact plug can ultimately be removed from the injection mold. This consists - as shown in Fig. 2 - of a plug head, behind which the elements mentioned are hidden and which can be plugged into a mains socket via the contact pins 15. The device connected to the consumer line 17 is thus connected to the general power network.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Electric Cable Installation (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (4)

1. Pont (1) pour fiche de sécurité (3) pour des appareils électriques pouvant être raccordés à une prise de secteur, avec une forme de base (10) en U pour y loger et y fixer des broches (16 ou 19) creuses cylindriques pour les conducteurs de courant et le conducteur de terre d'une ligne d'abonné (17) dans la zone ouverte du U (espace libre 13), ainsi que pour y loger les broches de contact (15) connectées directement avec la broche (16) des conducteurs de courant dans le fond de l'U (13), les extrémités des conducteurs de la ligne d'abonné (17) pouvant être enfichées, une fois isolées à leur extrémité, dans les broches (16 ou 19) et connectées à ces dernières, le pont (1), conjointement avec l'extrémité de la ligne d'abonné (17), pouvant être couvert de matière plastique par extrusion dans une matrice d'extrusion, et au moins un entonnoir d'introduction comportant un trou de passage conique étant placé devant l'une des broches (16 ou 19), entonnoir d'introduction dont la hauteur est choisie de telle manière, qu'en y introduisant les extrémités isolées des conducteurs, des petits fils un peu recourbés peuvent être placés de manière sûre dans le trou de passage (23 ou 32) correspondant, caractérisé en ce que l'entonnoir d'introduction pour la broche (19) du conducteur de terre est réalisé sous forme d'élément faisant partie intégrante du pont (1), dans la mesure où il est constitué d'une pièce usinée (21) fixée au bras (11) de l'U voisin de cette broche (19), élément présentant le trou de passage (23) conique coaxial par rapport à la broche (19).
2. Pont pour fiche selon la revendication 1, caractérisé en ce que la pièce usinée (21) présente, sur le côté libre faisant saillie par rapport à la broche (19), au moins un pied d'appui (22) reposant sur la barrette de liaison (14) de l'U.
3. Pont pour fiche selon la revendication 2, caractérisé en ce que les entonnoirs d'introduction pour les broches (16) des conducteurs de courant sont réalisés sous forme d'élément de pont (30) séparé faisant saillie par rapport aux deux broches (16), qui présente à chacune de ses extrémités un trou de passage (32) conique coaxial par rapport aux broches (16), et en ce que le pied d'appui (22) et l'élément du pont (30) sont complémentaires de telle manière, que l'élément de pont (30) peut être encastré dans la pièce usinée (21).
4. Pont pour fiche selon la revendication 3, caractérisé en ce qu'une console (33) est prévue sur l'élément de liaison (14) de l'U, entre les broches (16) pour les conducteurs de courant, à côté du pied d'appui (22), et en ce que le pied d'appui (22), la console (33) et l'élément du pont (30) sont adaptés les uns aux autres et complémentaires de telle manière, que l'élément de pont (30) peut être encastré par engagement positif et par adhérence.
EP19890103548 1988-03-09 1989-03-01 Pont pour fiche de sécurité comprenant broches creuses cylindriques pour conducteurs de courant et de terre Expired - Lifetime EP0332034B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3807716A DE3807716C3 (de) 1988-03-09 1988-03-09 Steckerbrücke für einen Schutzkontaktstecker mit hohlzylindrischen Anschlußstiften für die Stromleiter und den Schutzleiter
DE3807716 1988-03-09

Publications (4)

Publication Number Publication Date
EP0332034A2 EP0332034A2 (fr) 1989-09-13
EP0332034A3 EP0332034A3 (fr) 1991-08-21
EP0332034B1 true EP0332034B1 (fr) 1993-06-02
EP0332034B2 EP0332034B2 (fr) 1998-09-09

Family

ID=6349243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890103548 Expired - Lifetime EP0332034B2 (fr) 1988-03-09 1989-03-01 Pont pour fiche de sécurité comprenant broches creuses cylindriques pour conducteurs de courant et de terre

Country Status (3)

Country Link
EP (1) EP0332034B2 (fr)
DE (4) DE8817241U1 (fr)
ES (1) ES2041356T5 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391298B1 (fr) * 1989-04-07 1994-08-24 Taller GmbH Connecteur à contact de protection et à une aide d'entrée coordonnée à une douille de raccordement pour le contact de protection
DE4012582C2 (de) * 1990-04-20 1994-09-15 Taller Gmbh Schutzkontaktstecker mit einem integrierten T-förmigen Formteil
DE4012583C2 (de) * 1990-04-20 1996-11-28 Taller Gmbh Schutzkontaktstecker mit Grundplatte und Erdungsfeder
DE4012581C2 (de) * 1990-04-20 1994-08-25 Taller Gmbh Schutzkontaktstecker mit einem brückenartigen Formteil
DE9011104U1 (de) * 1990-07-27 1990-09-27 Taller GmbH, 7517 Waldbronn Steckerbrücke für doppelt-geerdeten Schutzkontaktstecker
GB2258955B (en) * 1991-08-23 1995-06-07 Gem Machinery Ind Co Ltd Electrical plug with specially constructed electrical connection
DE19543235C1 (de) * 1995-11-10 1996-12-19 Taller Gmbh Schutzkontaktstecker mit einer Einführhilfe für die Anschlußbuchse des Schutzleiters
DE19628725C1 (de) * 1996-07-17 1997-10-23 Taller Gmbh Steckerbrücke für einen Schutzkontaktstecker mit Einführtrichtern für die Stromleiter
DE10036472C1 (de) * 2000-07-19 2002-02-21 Taller Gmbh Einführhilfenanordnung
DE10051348C2 (de) * 2000-07-25 2002-06-13 Taller Gmbh Steckerbrücke mit Einführhilfenanordnung
DE10062738B4 (de) * 2000-12-15 2010-09-09 Taller Gmbh Klappdeckelstecker
DE60308683T2 (de) * 2003-10-07 2007-08-16 GEM TERMINAL IND. CO., LTD., Lu-Chu Hsiang Elektrische Stecker-Erdungsplatte
EP1575129A1 (fr) * 2004-03-09 2005-09-14 AKE-ATALAY Kalip Elektrik Sanayi ve Ticaret Ltd. Moyen protecteur pour le conducteur de terre de la fiche électrique
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
CN102270786B (zh) * 2010-09-17 2013-07-31 苏州建通光电端子有限公司 一种三极电源插头

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1108767B (de) * 1957-05-02 1961-06-15 Busch Jaeger Duerener Metall Elektrischer Stecker
DE3202747C3 (de) * 1982-01-28 1995-03-23 Krups Fa Robert Netzstecker
FR2538625A1 (fr) * 1982-12-23 1984-06-29 Cemrep Fiche a broches pour prise de courant electrique
DE8318328U1 (de) * 1983-06-24 1983-11-17 Taller GmbH Metall- und Kunststofftechnik, 7517 Waldbronn Kontaktträger für einen Schutzkontaktstecker
DE8707304U1 (de) * 1986-05-30 1987-07-23 Leonische Drahtwerke AG, 8500 Nürnberg Stecker
DE3640914C2 (de) * 1986-11-29 1994-11-03 Taller Gmbh Schutzkontaktstecker mit Steckerbrücke und Schutzkappe
DE8716567U1 (de) * 1987-12-16 1988-02-11 Schaar, Ingrid, 7517 Waldbronn Steckerstift
DE3809772C1 (en) * 1988-02-17 1989-03-16 Schaar, Ingrid, 7517 Waldbronn, De Electrical plug connector
DE8802047U1 (de) * 1988-02-17 1988-03-31 Schaar, Ingrid, 7517 Waldbronn Elektrischer Steckkontakt

Also Published As

Publication number Publication date
DE3911316C2 (de) 2003-05-28
DE3911315C2 (de) 1996-02-29
EP0332034A3 (fr) 1991-08-21
EP0332034B2 (fr) 1998-09-09
ES2041356T5 (es) 1999-01-16
DE3915852C2 (de) 1996-09-19
DE3915852A1 (de) 1990-11-22
DE8817241U1 (de) 1995-05-11
DE3911316A1 (de) 1990-10-11
DE3911315A1 (de) 1990-10-11
EP0332034A2 (fr) 1989-09-13
ES2041356T3 (es) 1993-11-16

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