EP0009769B1 - Appareil pour connecter un conducteur de dérivation - Google Patents

Appareil pour connecter un conducteur de dérivation Download PDF

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Publication number
EP0009769B1
EP0009769B1 EP79103664A EP79103664A EP0009769B1 EP 0009769 B1 EP0009769 B1 EP 0009769B1 EP 79103664 A EP79103664 A EP 79103664A EP 79103664 A EP79103664 A EP 79103664A EP 0009769 B1 EP0009769 B1 EP 0009769B1
Authority
EP
European Patent Office
Prior art keywords
housing
contact
insulated
connecter
branch
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
Application number
EP79103664A
Other languages
German (de)
English (en)
Other versions
EP0009769A1 (fr
Inventor
Harald Brüning
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.)
Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG
Original Assignee
Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG
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 Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG filed Critical Karl Pfisterer Elektrorechnische Spezialartikel GmbH and Co KG
Priority to AT79103664T priority Critical patent/ATE1309T1/de
Publication of EP0009769A1 publication Critical patent/EP0009769A1/fr
Application granted granted Critical
Publication of EP0009769B1 publication Critical patent/EP0009769B1/fr
Expired 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • 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
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/68—Structural association with built-in electrical component with built-in fuse

Definitions

  • the invention relates to a device for connecting a conductor to an insulated power supply cable laid above the ground with the aid of a clamp, with at least one electrically insulating housing, in which an electrically insulated contact piece, to which the conductor can be connected, is arranged and an uninsulated section of a protruding from the housing contact body is fixed, which is provided outside of the housing at least over part of its length with an electrically insulating jacket, the housing between the contact piece and the uninsulated section of the contact body having a cavity which on the one hand with the contact piece and on the other with the non-insulated section of the contact body electrically conductive fuse.
  • the clamp is as a connecting terminal to be screwed to an insulating base is formed, the terminal screw projecting beyond the terminal body is designed as a plug pin, onto which a socket arranged laterally on the housing receiving the fuse can be attached.
  • This socket is formed by the part of a contact body projecting beyond the housing, the part lying in the housing making contact with one end of the fuse. The other end contacts a contact piece that is provided on a connecting terminal that contacts one end of the line leading to the lighting fixture.
  • the housing containing the fuse is divided transversely to its longitudinal direction. Both screwable parts are provided with openings through which moisture would penetrate if the housing were exposed to moisture.
  • the connecting terminal attached to the insulating base is not insulated. In various respects, therefore, this device cannot be used to make a branch on an insulated overhead line.
  • Candle plugs are known (GB-A-1 466 894) which have a socket concentrically surrounding the contact pin and, when the plug is placed on the spark plug, the plug insulator which protects the electrically conductive parts against the ingress of moisture through their contact with the plug insulator . Such protection for the plug connection between the screw of the connection terminal and the socket arranged laterally on the housing containing the fuse would not be sufficient to make the known device usable for outdoor use.
  • the invention has for its object to provide a device for connecting a branch conductor to an insulated power cable laid above the ground with the aid of a branch terminal, which makes it possible to connect the consumer directly to the branch conductor even if the connection must be secured.
  • the terminal is designed as a branch terminal which can be attached to an insulated overhead line and has a clamping channel for a branch conductor, the contact body being a contact pin, the portion of which protrudes from the housing at least over part of its length in the clamping channel of the branch terminal can be inserted and contacted by the latter with clamping, and in which the housing protecting the protection against water and the branch terminal is fully electrically insulated.
  • the protection of the consumer connected to the branch conductor takes place here in the area of the connection device and thus close to the overhead line, so that the consumer can be connected directly to the branch conductor without danger. This also eliminates the sources of error and maintenance work, which are generally unavoidable when the fuse is arranged in the area of the consumer. Another significant advantage is the cost reduction that is achieved with the solution according to the invention, since the device according to the invention is inexpensive to manufacture and assemble due to its simplicity and also requires no maintenance.
  • the housing has a cylindrical shape and is divided transversely to its longitudinal axis so that one housing part contains the uninsulated section of the contact pin and the other housing part contains the contact piece is particularly advantageous.
  • the assembly of the device and the insertion and replacement of the fuse is then particularly simple.
  • the upper housing part containing the uninsulated section of the contact pin engages over the lower housing part.
  • a sealing ring can be provided, which is clamped between a contact surface of the two housing parts when connecting the two housing parts, which in a preferred embodiment takes place by screwing a threaded section of the lower housing part into a threaded section of the upper housing part.
  • the contact surface of the contact body and / or the uninsulated section of the contact pin expediently have corrugation.
  • the longitudinal axis of the uninsulated section of the contact pin lies transversely to the longitudinal axis of the housing, since the contact pin can then be fixed in the housing with particularly simple means.
  • corrugation can also be provided very easily in the area in which the fuse rests.
  • the contact piece is preferably designed as a screw terminal. It is sufficient to arrange this contact piece loosely in the lower housing part, since the bottom of the latter only has to have an opening for the passage conductor to pass through.
  • a common contact pin can be provided for two or more housings.
  • the contact pin carries the second housing of the same design at a sufficient distance from the housing for insertion into a branch terminal.
  • the branch terminal thus contacts the contact pin between the two housings.
  • additional housings can be arranged on the same contact pin next to one or both housings on the side facing away from the other housing.
  • the contact pin Regardless of whether the contact pin carries only one housing or several housings, it is advantageous to provide it with an electrically insulating jacket in the section protruding from the housing, provided the branch terminals are provided with tips or cutting edges which can penetrate this jacket .
  • the fitter cannot accidentally come into contact with the contact pin, which may be live.
  • a metallic connecting body can be used instead of the fuse.
  • the housing can also be made so small that only the uninsulated section of the contact pin and the contact piece can be accommodated in it, and these parts can also be formed in one piece.
  • a device for connecting a branch conductor 1 to the one, insulated core 2 of an above-ground, for example mast-supported, insulated power supply cable with the aid of a fully insulated branch terminal 3 has a plastic-made and therefore electrically insulating, cylindrical housing which consists of an upper housing part 4 and a lower housing part 5.
  • the uninsulated one end section 6 of a contact pin 7 is fixed, which consists of an electrically highly conductive material, for example aluminum, and emerges from the upper housing part 4 in the radial direction.
  • the housing part 4 forms a neck-like extension, which overlaps an electrically insulating jacket 9 surrounding the outer part of the contact pin 7, which can be a shrink tube, for example, so that no water enters the inside of the exit point Housing part 4 can penetrate.
  • the insulating material from which the jacket 9 is made is so soft that tips or cutting penetrate the jacket 9 in the clamping channel of the branch terminal 3 intended for receiving the contact pin 7, which in the exemplary embodiment lies parallel to the clamping channel receiving the wire 2, and the Can contact pin 7.
  • the length of the section of the contact pin 7 lying outside the upper housing part 4 is selected in the exemplary embodiment so that its free end lies inside the branch terminal 3 when it is closed.
  • the end face of the contact pin 7 lying outside the housing part 4 is also covered in a touch-safe manner in the assembled state.
  • the end section 6 lies, as shown in FIG. 1, on the inside of the upper end wall of the housing part 4 and is for the purpose of better Longitudinal contact fluted. Its end, which for the purpose of fixing engages in a recess in the casing of the upper housing part 4, is covered by an outwardly projecting elevation of the casing.
  • the interior of the upper housing part 4 is adapted to the dimensions of a fuse 10 to be accommodated, for example a D-fuse, which contacts the end face of the contact cap 11 provided at one end directly or via an unillustrated, electrically conductive and in the direction of the longitudinal axis of the housing resiliently deformable contact element bears against the corrugated area of the end section 6 when the upper housing part 4 is connected to the lower housing part 5.
  • a fuse 10 for example a D-fuse
  • the lower housing part 5 which is made of the same plastic material as the upper housing part 4, is provided in its upper end section with an external thread 12 which can be screwed into an internal thread 13 in the upper housing part overlapping the lower housing part in order to establish the connection between the two until one Annular collar 14 of the lower housing part comes into contact with a shoulder 15 in the upper housing part.
  • a sealing ring can be inserted between the collar 14 and the shoulder 15.
  • the middle section of the lower housing part 5 is provided on the outside with longitudinal ribs 16 which facilitate a secure grasping of the lower housing part when screwing in and unscrewing.
  • a central passage opening 17 is provided for the branch conductor 1, which is extended outwards by a neck-like extension of the lower housing part.
  • Loose is a contact piece 18, which is designed as a screw terminal for connecting the branch conductor 1 and whose end face facing the upper housing part 4 forms the contact surface on which the fuse 10 with its one contact cap or via an unillustrated, electrically well conductive and in the direction rests on the longitudinal axis of the housing elastically deformable contact element.
  • the contact piece 18 lies loosely in the lower housing part 5, it can be easily removed for inserting and clamping the branch conductor 1 and then reinserted. This avoids an access opening to the clamping screw 19 of the contact piece 18 through which water could penetrate. If the lower housing part 5 is screwed into the upper housing part 4, no water can therefore penetrate into the lower housing part.
  • narrow retaining fingers 20 which are formed in one piece are provided on the latter and are arranged uniformly distributed over the circumference of the upper edge and extend from here in the longitudinal direction of the housing into the upper housing part 4.
  • the contact pin can also have a linear shape other than that shown in FIG. 1.
  • the contact pin 107 is bent at a right angle from the upper housing part 104.
  • This exemplary embodiment can therefore be connected to a branch terminal in which the clamping channel for the contact pin runs in the vertical direction.
  • FIG. 3 shows an exemplary embodiment which allows at least two branch conductors 201 to be connected by means of a single branch terminal 203 to a power supply cable (not shown) which is laid above ground.
  • the contact pin 207 carries, at a distance which, as shown in FIG. 3, greater than the width of the branch terminal 203, an upper housing part 204, into each of which a lower housing part 205 can be screwed.
  • the housing parts 204 and 205 are designed corresponding to the housing parts 4 and 5.
  • the insertion of the contact pin 207 into the upper housing parts is designed as in the first exemplary embodiment, the electrically insulating jacket surrounding the contact pin engaging over the connecting pieces on the upper housing parts 204 and thereby closing them watertight.
  • the fuses which can be inserted into the two housings make contact on the one hand with the uninsulated end section of the contact pin 207 and on the other hand with the contact piece to which the branch conductor 201 is clamped. To avoid repetition, reference is made to the explanations for the exemplary embodiment according to FIG. 1 for further details.
  • the contact pin 207 can be extended beyond the first two housings and further housings can be arranged on these extensions.
  • the branch conductor is expediently first clamped onto the contact piece, then this is placed in the lower housing part. After that the fuse is inserted between the holding fingers and then the lower housing part is screwed into the upper housing part. If the contact pin is finally inserted into the branch terminal and this is closed, the fitter cannot come into contact with a live part during the entire assembly.

Landscapes

  • Fuses (AREA)
  • Cable Accessories (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Claims (10)

1. Appareil pour connecter un conducteur à un câble d'alimentation en énergie isolé, posé au-dessus du sol, à l'aide d'un serre-fil comprenant au moins un boîtier isolant de l'électricité dans lequel est disposée, isolée électriquement une pièce de contact avec laquelle le conducteur peut être connecté et dans lequel est fixé un segment non isolé d'un corps de contact qui émerge du boîtier, et qui est muni d'un enveloppement isolant de l'électricité à l'extérieur du boîtier sur au moins une partie de sa longueur, cependant que le boîtier présente, entre la pièce de contact et le segment non isolé du corps de contact, une cavité qui reçoit un fusible pouvant être connecté électriquement, d'un côté avec la pièce de contact, de l'autre côté avec le segment non isolé du corps de contact, caractérisé en ce que le serre-fil est réalisé sous la forme d'un serre-fil de dérivation (3 ; 203) pouvant être connecté à une ligne aérienne isolée (2) et muni d'un canal de serrage pour un conducteur de dérivation, en ce que le corps de contact est une broche de contact (7 ; 107 ; 207) dont le segment (7 ; 107 ; 207) qui émerge du boîtier (4, 5 ; 104, 105 ; 204, 205) peut être logé au moins sur une partie de sa longueur dans le canal de serrage du serre-fil de dérivation et peut être mis en contact avec ce dernier avec serrage et en ce que le boîtier (4, 5 ; 104, 105 ; 204, 205) qui protège le fusible (10) contre l'eau est réalisé entièrement isolé de l'électricité de même que le serre-fil de dérivation (3 ; 203).
2. Appareil suivant la revendication 1, caractérisé en ce que le boîtier (4, 5 ; 104, 105 ; 204, 205) a une forme du type cylindre et est divisé transversalement à son axe longitudinal de manière qu'une partie du boîtier (4 ; 104 ; 204) contienne le segment non isolé (6) de la broche de contact (7 ; 107 ; 207) et que l'autre partie du boîtier (5 ; 105 ; 205) contienne la pièce de contact (18).
3. Appareil suivant la revendication 2, caractérisé en ce que la partie supérieure du boîtier (4 ; 104 ; 204) qui contient le segment non isolé (6) de la broche de contact (7 ; 107 ; 207) coiffe la partie inférieure du boîtier (5 ; 105 ; 205).
4. Appareil suivant la revendication 2 ou 3, caractérisé : en ce que la partie inférieure du boîtier (5 ; 105 ; 205) présente des doigts de retenue (20) pour le fusible (10) qui sont au moins approximativement parallèles entre eux et à l'axe longitudinal du boîtier, qui font saillie au-dessus du bord supérieur de cette partie inférieure du boîtier et qui, dans le boîtier assemblé sont engagés dans la partie supérieure du boîtier (4 ; 104 ; 204).
5. Appareil suivant l'une quelconque des 'revendications 1 à 4, caractérisé en ce qu'au moins une partie du côté de la pièce de contact (18) qui est dirigé vers le segment non isolé (6) de la broche de contact (7 ; 107 ; 207) est réalisée sous la forme d'une surface de contact pour l'appui direct d'une extrémité du fusible et le segment non isolé (6) de la broche de contact est réalisé sous la forme d'un corps de contact pour l'appui direct de l'autre extrémité du fusible (10).
6. Appareil suivant la revendication 5, caractérisé en ce que la surface de contact de la pièce de contact (18) et/ou du segment non isolé (6) de la broche de contact (7 ; 107 ; 207) présente une striure.
7. Appareil suivant la revendication 5 ou 6, caractérisé en ce que l'axe longitudinal du segment non isolé (6) de la broche de contact (7 ; 107 ; 207) est disposé transversalement à l'axe longitudinal du boîtier.
8. Appareil suivant l'une des revendications 1 à 7, caractérisé en ce que la pièce de contact (18) est réalisée sous la forme d'un serre-fil à vis pour le conducteur de dérivation (1 ; 101 ; 201) et est disposée de façon lâche dans la partie inférieure du boîtier (4 ; 104 ; 204) avec le canal de serrage aligné sur l'ouverture prévue dans le côté inférieur de la partie inférieure du boîtier (4 ; 104 ; 204).
9. Appareil suivant l'une des revendications 1 à 8, caractérisé en ce que la broche de contact (207) porte, à une distance du boîtier (204, 205) suffisamment grande pour l'introduction dans un serre-fil de dérivation (203) un deuxième boîtier (204, 205) de même conformation.
10. Appareil suivant la revendication 9, caractérisé en ce qu'à côté d'un ou de deux boîtiers (204, 205) est disposé sur la broche de contact (207), sur le côté qui est à l'opposé de l'autre boîtier, au moins un boîtier supplémentaire de même configuration.
EP79103664A 1978-09-29 1979-09-27 Appareil pour connecter un conducteur de dérivation Expired EP0009769B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103664T ATE1309T1 (de) 1978-09-29 1979-09-27 Vorrichtung zum anschliessen eines abzweigleiters.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7829026U 1978-09-29
DE7829026U DE7829026U1 (de) 1978-09-29 1978-09-29 Anschlußstück für vollisolierte Abzweigklemmen

Publications (2)

Publication Number Publication Date
EP0009769A1 EP0009769A1 (fr) 1980-04-16
EP0009769B1 true EP0009769B1 (fr) 1982-06-30

Family

ID=6695573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103664A Expired EP0009769B1 (fr) 1978-09-29 1979-09-27 Appareil pour connecter un conducteur de dérivation

Country Status (3)

Country Link
EP (1) EP0009769B1 (fr)
AT (1) ATE1309T1 (fr)
DE (2) DE7829026U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3801920A1 (de) * 1988-01-23 1989-08-03 Pfisterer Elektrotech Karl Vorrichtung zum anschliessen eines abzweigleiters
DE10044638A1 (de) * 2000-09-08 2002-04-04 Pfisterer Kontaktsyst Gmbh Vorichtung zum elektrischen Verbinden einer Datenanschlussleitung mit einer Niederspannungs-Energieversorgungsleitung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1466894A (en) * 1973-11-15 1977-03-09 Kabel Metallwerke Ghh Connector for a motor vehicle ignition system

Also Published As

Publication number Publication date
DE2963253D1 (en) 1982-08-19
ATE1309T1 (de) 1982-07-15
DE7829026U1 (de) 1979-01-11
EP0009769A1 (fr) 1980-04-16

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