EP0274605A1 - Fiche à contact de protection munie d'un pont support de broches et d'un capuchon protecteur - Google Patents

Fiche à contact de protection munie d'un pont support de broches et d'un capuchon protecteur Download PDF

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Publication number
EP0274605A1
EP0274605A1 EP87116636A EP87116636A EP0274605A1 EP 0274605 A1 EP0274605 A1 EP 0274605A1 EP 87116636 A EP87116636 A EP 87116636A EP 87116636 A EP87116636 A EP 87116636A EP 0274605 A1 EP0274605 A1 EP 0274605A1
Authority
EP
European Patent Office
Prior art keywords
plug
bridge
protective cap
protective
connecting web
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.)
Granted
Application number
EP87116636A
Other languages
German (de)
English (en)
Other versions
EP0274605B1 (fr
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 EP0274605A1 publication Critical patent/EP0274605A1/fr
Application granted granted Critical
Publication of EP0274605B1 publication Critical patent/EP0274605B1/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
    • 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
    • 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

Definitions

  • the present invention relates to a safety plug according to the preamble of patent claim 1.
  • Plugs of this type are known and on the whole have also proven themselves. Basically, these protective contact plugs hate the task of not allowing the handling of an electrical device, i.e. connecting this device when the connector is plugged into the mains socket, to endanger people, for example 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 inserted into a test form corresponding to its shape and electrically charged from outside. In this way, plugs with individual wires that protrude outwards or are too close apart can be eliminated. However, this is associated with considerable production costs.
  • protective caps were designed, which are molded onto the plug bridge before the protective contact plug is molded around be plugged in to secure the space around the soldering points of the current conductors and the protective conductor to the outside.
  • This protective cap is designed according to the contour of the plug bridge; it is inserted over the free space corresponding to the U-shape of the connector bridge and is flush with the inner bottom surface of the U.
  • the protective cap is non-positively latched onto the connector bridge via two locking lugs that extend laterally across the bottom of the U.
  • the object on which the present invention is based is to specify a protective contact plug of the generic type in which the electrical safety is further optimized.
  • this object is achieved in that the protective cap has a projection projecting beyond the connecting web of the U in the region of the open sides.
  • the concept according to the invention has, in addition to the advantage achieved according to the task, the advantage over the prior art that less material is required when encapsulating the assembly unit consisting of plug bridge and protective cap, that is to say when producing the end product "protective contact plug".
  • the material for the encapsulation of the assembly mentioned is one heit, that is, the soft-elastic plastic, more expensive than the hard-elastic or inelastic plastic from which the protective cap is made; and the space filled by the approach according to the invention finally no longer needs to be sprayed out.
  • the plug bridge (1) according to Fig. 1a consists essentially of 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 connected to one another via a connecting web (14).
  • 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 shape is electrically equipped as follows: On the outside of the connecting web (14) protrude at the standardized distance mentioned and with a standardized length to the outside (with the contact pins 15 the plug ultimately becomes 15) into an electrical outlet introduced).
  • 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 part (10) in the form of connecting pins (16). With these connection pins (16), the current conductors of a consumer line (17) are ultimately mechanically crimped or crimped.
  • the electrical system is completed by a protective conductor (18) which, as part of the consumer line (17), is connected to a third connecting pin (19) on the inside of the connecting web (14).
  • the connection pins (16) of the power line and this third connection pin (19) are arranged in a triangle to one another.
  • the connector pin (19) is connected to contact springs arranged on the outer sides of the legs (11, 12) of the U-shaped molded part (10), which when the protective contact plug is plugged into the mains socket, these are connected to a coupling located in the device to be connected, so that the protective conductor of the consumer line and thus the device itself have a ground fault.
  • this protective cap (2) is shown in perspective, in a view showing the assignment to the connector bridge (1) according to Fig. 1a.
  • the plug bridge (1) and the protective cap (2) are joined together in the direction of arrow X to form an assembly unit.
  • the protective cap (2) has the shape and effect of a cover.
  • the outer contours are fundamentally adapted to the free space (13) of the plug bridge (1) or are designed in accordance with the arrangement of the connecting pins (16, 19), namely in an approximately triangular basic shape.
  • At the tip of this triangle there is a receiving slot (21) which, when assembled, lies above the consumer line (17).
  • the interior (22) of the protective cap (2) forms approximately a triangular shaft, which can be pushed from the open side over the connecting pins (16) of the current conductor and the connecting pin (19) of the protective conductor.
  • the protective cap (2) on the edge of the triangular sides adjacent to the receiving slot (21) each has a projecting shoulder (23) which adjoins the triangular shaft (interior 22) in a step-like manner.
  • the depth of the step is selected corresponding to the outer contour of the connecting web (14) of the plug bridge (1); the step height corresponds to the thickness of the connecting web (14).
  • the lugs (23) are each provided with a latching lug (24) which is on the front of the connecting web (14), that is to say on the side from which the contact pins (15) stick out, latch.
  • these detents (24) are designed so that they protrude from the free edge of the lugs (23).
  • the subsequent collar part of the extension (23) is recessed up to the edge of the triangular shaft in order to give the locking lug (24) the required elasticity.
  • Fig. 2 shows the protective cap (2) in a detailed construction drawing.
  • the upper illustration shows the protective cap (2) viewed in the direction of the receiving slot (21).
  • the outer contour is shown in a view according to which the triangular interior (22) is hidden behind the plane shown, namely the plane shown corresponds to the outside of the base side of the triangle and the tip of the triangle with the receiving slot (21) lies behind the plane of the drawing .
  • the projections (23) and the locking lugs (24) provided on both sides of the triangular shaft can be seen in particular from the front view.
  • the lugs (23) connect to the triangular shaft and are partially extended by the locking lugs (24).
  • the top view shows the basic shape of the triangular interior (22).
  • the receiving slot (21) extends from the triangular tip; on the triangular sides (25) adjacent to the receiving slot (21) the protruding lugs (23) are provided, which after the connection of the protection cap (1) and the connector bridge (2) project beyond their connecting web (14).
  • the locking lugs (24) are also shown.
  • the cut side view shows in particular the receiving slot (21) and the locking lugs (24) with the shoulders (23).
  • the two elements plug bridge (1) and protective cap (2) are joined together in a positive and non-positive manner.
  • the assembly unit thus created is overmolded with soft elastic plastic so that a finished protective contact plug (3) can be removed from the injection mold.
  • This consists - as shown - of a plug head, behind which the elements according to FIG. 1a "plug bridge” and FIG. 1b (or 2) "protective cap” are hidden and which can be plugged into the mains plug via the contact pins (15) to connect a device connected to the consumer line (17) and to supply it with electrical energy.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
EP19870116636 1986-11-29 1987-11-11 Fiche à contact de protection munie d'un pont support de broches et d'un capuchon protecteur Expired - Lifetime EP0274605B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863640914 DE3640914C2 (de) 1986-11-29 1986-11-29 Schutzkontaktstecker mit Steckerbrücke und Schutzkappe
DE3640914 1986-11-29

Publications (2)

Publication Number Publication Date
EP0274605A1 true EP0274605A1 (fr) 1988-07-20
EP0274605B1 EP0274605B1 (fr) 1992-02-26

Family

ID=6315149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870116636 Expired - Lifetime EP0274605B1 (fr) 1986-11-29 1987-11-11 Fiche à contact de protection munie d'un pont support de broches et d'un capuchon protecteur

Country Status (3)

Country Link
EP (1) EP0274605B1 (fr)
DE (1) DE3640914C2 (fr)
ES (1) ES2030034T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615740B (zh) * 2008-06-25 2012-07-04 建通精密工业股份有限公司 具接地弹片的电源插头内架压力盖构造
CN104577497A (zh) * 2014-12-09 2015-04-29 东莞市永晟电线科技股份有限公司 电路系统电源插头
EP2891214A1 (fr) * 2012-08-28 2015-07-08 Lapp Engineering & Co. Unité de fiche et appareil électrique doté d'une telle unité de fiche

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8817241U1 (de) * 1988-03-09 1995-05-11 Taller Gmbh, 76337 Waldbronn Schutzkontaktstecker mit Steckerbrücke und hohlzylindrischen Anschlußstiften für die Stromleiter und den Schutzleiter
DE4316962C2 (de) * 1993-05-21 1996-08-08 Taller Gmbh Elektrischer Gerätestecker mit einem angespritzten Steckerteil und einer Halteplatte für die Kontaktfedern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522341A (en) * 1948-06-21 1950-09-12 Emile P Brus End plug connection to cord
DE1007403B (de) * 1953-08-05 1957-05-02 Bayerische Elektrozubehoer G M Weichgummistecker
DE1490034B2 (de) * 1964-06-30 1971-06-03 Quergeteilter stecker
GB1595783A (en) * 1977-09-30 1981-08-19 Lucas Industries Ltd Electrical plug and lead assembly
GB2095924A (en) * 1981-03-19 1982-10-06 Bicc Plc An electric plug

Family Cites Families (5)

* 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
DE7025981U (de) * 1970-05-18 1970-12-10 Milanese Conduttori S P A Fab Elektrischer stecker.
DE2532872C3 (de) * 1975-07-23 1979-11-15 Kabelwerke Reinshagen Gmbh, 5600 Wuppertal Elektrische Steckvorrichtung und Verfahren zu ihrer Herstellung
GB2060283B (en) * 1979-10-04 1983-06-29 Lucas Industries Ltd Electrical plugs
DE8324887U1 (de) * 1983-08-30 1985-06-13 Hehl, Karl, 7298 Loßburg Kabelsteckverbinder für mehradrige Kabel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522341A (en) * 1948-06-21 1950-09-12 Emile P Brus End plug connection to cord
DE1007403B (de) * 1953-08-05 1957-05-02 Bayerische Elektrozubehoer G M Weichgummistecker
DE1490034B2 (de) * 1964-06-30 1971-06-03 Quergeteilter stecker
GB1595783A (en) * 1977-09-30 1981-08-19 Lucas Industries Ltd Electrical plug and lead assembly
GB2095924A (en) * 1981-03-19 1982-10-06 Bicc Plc An electric plug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615740B (zh) * 2008-06-25 2012-07-04 建通精密工业股份有限公司 具接地弹片的电源插头内架压力盖构造
EP2891214A1 (fr) * 2012-08-28 2015-07-08 Lapp Engineering & Co. Unité de fiche et appareil électrique doté d'une telle unité de fiche
EP2891214B1 (fr) * 2012-08-28 2022-02-16 Lapp Engineering AG Unité de fiche et appareil électrique doté d'une telle unité de fiche
CN104577497A (zh) * 2014-12-09 2015-04-29 东莞市永晟电线科技股份有限公司 电路系统电源插头

Also Published As

Publication number Publication date
DE3640914A1 (de) 1988-06-09
ES2030034T3 (es) 1992-10-16
DE3640914C2 (de) 1994-11-03
EP0274605B1 (fr) 1992-02-26

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