EP0948087A1 - Vorrichtung und Verfahren zum elektrischen Verbinden zwischen einer Stromschiene und einem Leiter und elektrische Verbindungsanordnung mit einer solchen Vorrichtung - Google Patents

Vorrichtung und Verfahren zum elektrischen Verbinden zwischen einer Stromschiene und einem Leiter und elektrische Verbindungsanordnung mit einer solchen Vorrichtung Download PDF

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Publication number
EP0948087A1
EP0948087A1 EP99420084A EP99420084A EP0948087A1 EP 0948087 A1 EP0948087 A1 EP 0948087A1 EP 99420084 A EP99420084 A EP 99420084A EP 99420084 A EP99420084 A EP 99420084A EP 0948087 A1 EP0948087 A1 EP 0948087A1
Authority
EP
European Patent Office
Prior art keywords
conductor
bar
jaw
knife
electrical connection
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Withdrawn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
EP99420084A
Other languages
English (en)
French (fr)
Inventor
Claude Senebier
Michel Sage
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.)
Mecelec Industries SAS
Original Assignee
Mecelec Industries SAS
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 Mecelec Industries SAS filed Critical Mecelec Industries SAS
Publication of EP0948087A1 publication Critical patent/EP0948087A1/de
Withdrawn legal-status Critical Current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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2675—Electrical interconnections between two blocks, e.g. by means of busbars

Definitions

  • the invention relates to a device and a method for electrical connection between a bar of a bar system and an electrical conductor.
  • the invention also relates to a electrical connection assembly between a busbar and an electric cable.
  • Such an electrical connection assembly can be used in a connection cabinet, for example in a current distribution cabinet between several dwellings located in a street or to connect several networks together for the interconnection of the transformers used for energy distribution to allow, for example, maintenance operations on one or more of these transformers.
  • connection device electric type bar which includes a fixed bracket on a bar and designed to receive a terminal of a fuse the other terminal of which is received in a second bracket itself connected to a cable.
  • this system is found relatively complex and expensive when no fuse is necessary. Indeed, in this case, it is imperative to have a removable conductive bar between the jaws of the stirrups, this bar having the function of allowing a cut of circuit, in particular for an intervention on the driver, in downstream of the connection system or for decoupling two networks.
  • connection device economical, compact and total resistance lower than that of known devices.
  • the invention relates to a device for electrical connection between a bar of a bar system and an electrical conductor, this device comprising a stirrup connected to the bar and forming a jaw, characterized in that it comprises a nozzle provided with a receiving housing and connecting one end of the conductor, this end piece carrying a knife capable of being received in the jaw and be checked out.
  • the invention it is no longer necessary to use a conductive bar because the end piece, which is permanently secured to the end of the conductor and is not likely to be lost, fulfills both the function of this bar and that of the bracket for connection to the conductor cable.
  • the setting in place of the tip knife in the caliper jaw is performed using the natural flexibility of the conductor, which can be removed from the cable protective sheath to which it belongs over a great length because the device of the invention is particularly compact. It follows that the residual stresses on the conductor are low, this which improves the service life of the connection thus produced.
  • the invention also relates to a connection assembly between a busbar and an electric cable in which each cable conductor is connected to the bus corresponding by means of a device as above described.
  • This set is more economical and more compact than those of the prior art, while it induces on the cable lower mechanical stresses.
  • a bar 1 belonging to a bar system for example of the type of FR-A-2 715 775, is provided with an orifice 1 a for receiving a screw 2 for fixing an element to be worn to the electrical potential of the bar.
  • This element comprises a metal tongue 3 on which is fixed a stirrup 4 comprising two elastic blades 5 and 6 which form a jaw.
  • the free ends of the blades 5 and 6 are capped by covers 7 and 8 made of insulating plastic. It is nevertheless possible to provide a device in which the blades 5 and 6 are not topped with insulating covers.
  • a conductive cable 10 intended to be connected to the different bars of a bar system, includes several conductors 11, 12 and 13, including conductor 11 which is provided to be connected to the bar 1.
  • the free end 11 a of the conductor 11 is disposed in a receiving housing 20 formed in a ferrule 21 which also carries two screws 22 and 23 for contacting and immobilizing the end 11 a in the housing 20. It is possible that the device comprises a single contact screw or, on the contrary, more than two screws.
  • Note 20 has the orifice through which the end 11 a of the conductor 11 is introduced into the housing 20.
  • the orifice 20 a is formed on a face 21 a , called the rear face, of the end piece 21.
  • the end piece 21 On a face 21 b , opposite face 21 a and called front face, the end piece 21 carries a knife 24 whose dimensions are such that it can be introduced between the blades 5 and 6 by exerting a thrust force P, directed towards the bar 1, so that it is immobilized between these blades and brought to the same potential as these.
  • the tip 21 and the knife 24 are electrically conductive, so that in the position shown in Figure 2, the end 11a of the conductor 11 is brought to the electrical potential of the jaws 5 and 6, that is, tell the potential of the bar 1. In this position, the conductor 11 is therefore electrically connected to the bar 1.
  • the end piece 21 and the knife 24 are formed by a single piece, which improves robustness and decreases the electrical resistance of these parts.
  • the knife 24 When it is necessary to interrupt the connection between the bar 1 and the conductor 11, the knife 24 is extracted from jaws 5 and 6 by means of a pull ring 25 in which it is possible for an operator swipe a finger or a tool.
  • a tensile force T exerted on the ring 25 allows the tip 21 to be brought into the position of Figure 1 in which the knife 24 is not in contact with the blades 5 and 6.
  • the covers 7 and 8 electrically isolate the knife 24 blades 5 and 6, even if the knife 24 is in simple support against the jaw.
  • the knife 24 is “captive” in that it remains at the end of conductor open or closed position of the device.
  • the ring 25 is retractable, in the sense that it can slide in grooves 26 formed on the lateral faces end piece 21, which allows it to be pressed on the face upper end of this nozzle when it is not to be used, as shown in figure 2.
  • the device of the invention is particularly compact, so that the length L over which the protective sheath of the cable 10 can be removed around conductors 11 and equivalents is relatively long, for example of the order of 30 to 50 cm, so that the movements of the knife 4 by relative to the jaw formed by blades 5 and 6 are possible thanks to the flexibility or longitudinal flexibility of the conductor 11.
  • the stresses exerted on this driver and the game bars are distributed along the length L, so that they are weak.
  • An insulating jacket 30 is provided around the stirrup 4 and the end piece 21, this envelope being dimensioned for allow the release of the knife 24 relative to the blades 5 and 6.
  • This envelope 30 isolates the elements brought to potential of bar 1 in relation to the external environment, which avoids short circuits and provides a safety function to the device of the invention.
  • This cap includes a first opening 31 through which passes the conductor 11.
  • the opening 31 is shaped elongated so as to allow the displacement of the end piece 21 between the positions of Figures 1 and 2.
  • the casing 31 also comprises a second opening 32, formed in a face perpendicular to the one that includes the opening 31, which allows an operator to access the screws 22 and 23 for immobilizing the end 11a of the conductor 11 inside the housing 20. It is also possible to access the ring 25 through this opening 32 to exert the tensile force T.
  • the envelope 30 includes also a transparent part 33 forming a window which allows an operator to visualize the relative position of the knife 24 and the jaw formed by blades 5 and 6.
  • the envelope 30 further comprises an extension 34 which surrounds screw 2, so that this screw, which is brought to the potential of bar 1, is also electrically isolated compared to the outside.
  • An orifice 35 is provided in extension 34, to the right of screw 2, to allow the introduction an operating key for this screw, in particular for the installation of the device or its disassembly.
  • the tongue 3 is surrounded by the bottom 36 of the envelope 30 of which it constitutes, in fact, a frame. So the tongue 3, which is metallic, gives good rigidity to the envelope 30 and in particular at the bottom 36 against which comes put the end piece 21 back in the position shown in Figure 2.
  • the fact that the tongue 3 is embedded in the bottom 36 of the casing 30 guarantees its electrical insulation from the outside and, in particular, with respect to the neighboring bars of the device to bars.
  • a locking pin 37 is provided on one of the side walls of the casing 30, so as to maintain the nozzle 21 in its position in FIG. 1.
  • the introduction knife 24 in the jaw formed by blades 5 and 6 is blocked, unless pin 37 is removed voluntarily the path of the nozzle 21.
  • Closing the circuit requires a conscious operation of pin 37, which avoids any risk of accidental closure.
  • the pin 37 is loaded elastically towards a locking position of the end piece 31, so that the nozzle is blocked as soon as it has reached its position of the figure 1.
  • the function of pin 37 can be fulfilled by a tongue elastic formed on an inner face of the envelope 30.
  • an insulating strip is movable between a position where it covers the jaw and a position where it is spread apart by compared to that jaw. In position away from the blade insulating, the knife can be placed in the jaw. In the covering position, the blade prevents any contact of the knife with the jaw and, in particular, its introduction. The insulating strip can be returned to its position covering of the jaw due to its weight and / or elastic means.
  • the different means for locking the conductors of the same cable are locked in the position of locking by a common member such as a rod, a cable flexible or padlock.
  • the locking means then carry a tab or a hole allowing them to cooperate with a such blocking member.
  • the locking means have a specific color allowing immediate identification of their position, in particular through window 33.
  • the end 11a of the conductor 11 can be inserted into the housing 20 of the connector 21 while the latter is in position in the jaw formed of the blades 5 and 6.
  • the stirrup 4 is then fixed on the bar 1 with the screw 2 while the screws 22 and 23 are not tightened, which allows the end 11a of the conductor to be positioned freely in the housing 20. the screws 22 and 23 are then tightened.
  • An electrical connection assembly between the cable 10 and a busbar comprising several bars comprises a device as previously described for each conductor 11, 12 or 13.

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  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP99420084A 1998-04-03 1999-04-01 Vorrichtung und Verfahren zum elektrischen Verbinden zwischen einer Stromschiene und einem Leiter und elektrische Verbindungsanordnung mit einer solchen Vorrichtung Withdrawn EP0948087A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9804410A FR2777132B1 (fr) 1998-04-03 1998-04-03 Dispositif et procede de raccordement electrique entre une barre et un conducteur et ensemble de raccordement electrique comprenant un tel dispositif
FR9804410 1998-04-03

Publications (1)

Publication Number Publication Date
EP0948087A1 true EP0948087A1 (de) 1999-10-06

Family

ID=9525031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99420084A Withdrawn EP0948087A1 (de) 1998-04-03 1999-04-01 Vorrichtung und Verfahren zum elektrischen Verbinden zwischen einer Stromschiene und einem Leiter und elektrische Verbindungsanordnung mit einer solchen Vorrichtung

Country Status (2)

Country Link
EP (1) EP0948087A1 (de)
FR (1) FR2777132B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2818021A1 (fr) * 2000-12-08 2002-06-14 Seifel Sa Dispositif de raccordement electrique sectionnable d'un ensemble de cables electriques a une platine pourvue d'un ensemble de barres conductrices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1554705A (de) * 1966-10-07 1969-01-24
FR2715775A1 (fr) * 1994-01-28 1995-08-04 Mecelec Ind Dispositif de raccordement électrique de type modulaire.
FR2731847A3 (fr) * 1995-03-14 1996-09-20 Mecelec Ind Systeme pour la realisation de branchements proteges sur les dispositifs de raccordement electrique du type a barres

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1554705A (de) * 1966-10-07 1969-01-24
FR2715775A1 (fr) * 1994-01-28 1995-08-04 Mecelec Ind Dispositif de raccordement électrique de type modulaire.
FR2731847A3 (fr) * 1995-03-14 1996-09-20 Mecelec Ind Systeme pour la realisation de branchements proteges sur les dispositifs de raccordement electrique du type a barres

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2818021A1 (fr) * 2000-12-08 2002-06-14 Seifel Sa Dispositif de raccordement electrique sectionnable d'un ensemble de cables electriques a une platine pourvue d'un ensemble de barres conductrices

Also Published As

Publication number Publication date
FR2777132B1 (fr) 2000-05-19
FR2777132A1 (fr) 1999-10-08

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