FR2722619A1 - Electric cable connection procedure for linking cores end to end - Google Patents

Electric cable connection procedure for linking cores end to end Download PDF

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Publication number
FR2722619A1
FR2722619A1 FR9408800A FR9408800A FR2722619A1 FR 2722619 A1 FR2722619 A1 FR 2722619A1 FR 9408800 A FR9408800 A FR 9408800A FR 9408800 A FR9408800 A FR 9408800A FR 2722619 A1 FR2722619 A1 FR 2722619A1
Authority
FR
France
Prior art keywords
cores
peg
sleeve
rod
connecting piece
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
FR9408800A
Other languages
French (fr)
Other versions
FR2722619B1 (en
Inventor
Samir Osmani
Laurent Tardif
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.)
Pirelli Cables y Sistemas SA
Cables Pirelli SA
Original Assignee
Pirelli Cables y Sistemas SA
Cables Pirelli SA
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 Pirelli Cables y Sistemas SA, Cables Pirelli SA filed Critical Pirelli Cables y Sistemas SA
Priority to FR9408800A priority Critical patent/FR2722619B1/en
Publication of FR2722619A1 publication Critical patent/FR2722619A1/en
Application granted granted Critical
Publication of FR2722619B1 publication Critical patent/FR2722619B1/en
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
    • 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
    • H01R4/08—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 by an explosion
    • 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
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • 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
    • H01R4/20—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 using a crimping sleeve

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

The process involves fitting the conductive cores (10) of the cables end to end into a cylindrical sleeve (14), after removal of their insulation. The sleeve and cables within it are embedded in a block which provides a cylindrical seating (20) between two similar blocks of material (16) linked by a hinge (18). The anchorage of the sleeve on the cores is achieved by a peg (28) which is launched into the sleeve at right angles to its axis. The peg is guided within a casing (22). The peg (28) may be made of steel, and is launched down against the cylinder by a hydraulic, pneumatic or electrically driven mechanism. In order to ensure a reliable connection, the peg must penetrate to a depth equal to about half the average diameter of the conductive cores.

Description

La présente invention se situe dans le domaine technique des câbles électriques, et concerne plus particulièrement leur raccordement. The present invention lies in the technical field of electric cables, and more particularly relates to their connection.

Il est possibie notamment de raccorder deux câbles entre eux, ce qui constitue alors une jonction, ou bien encore un câble à un support fixe, de manière à former une extrémi.é.  It is possible in particular to connect two cables together, which then constitutes a junction, or even a cable to a fixed support, so as to form an extremi.é.

La réalisation d'une jonction ou d'une extrémité nécessite tout d'abord de mettre à nu les âmes conductrices du(åes) câble(s), puis de les emmancher au sein d'une pièce de raccord qui est un manchon pourvu de deux cavités dans le cas d'une jonction, et une cosse munie d'un seul logement dans le cas d'une extrémité. The realization of a junction or an end requires first of all to expose the conductive cores of the cable (s), then to fit them within a connecting piece which is a sleeve provided with two cavities in the case of a junction, and a terminal provided with a single housing in the case of one end.

L'étape suivante consiste alors à poinçonner, autour des âmes du(des) câble(s), la pièce de raccord afin qu'elle puisse assumer une double fonction de liaison mécanique permanente et de continuité électrique. The next step then consists in punching, around the cores of the cable (s), the connecting piece so that it can assume a double function of permanent mechanical connection and electrical continuity.

De manière habituelle, on glisse dans un premier temps le(s) câble(s) et la pièce de raccord, dans une matrice de maintien. Puis, on immobilise la matrice par l'Intermédiaire d'une tête de presse et l'on déforme la pièce de raccord sur les âmes conductrices grâce à un poinçon mû, par exemple, par un moteur pneumatique. Usually, the cable (s) and the connecting piece are first slid into a holding matrix. Then, the matrix is immobilized by means of a press head and the connecting piece is deformed on the conductive cores by means of a punch, for example, by a pneumatic motor.

Outre le fait que l'outil utilisé pour cette opération est généralement encombrant et sujet à un entretien mécanique fréquent, le temps nécessaire pour réaliser le poinçonnage est beaucoup trop important. En effet, le poinçon est mis en mouvement à une vitesse constante d'environ 1 cm/min, ce qui correspond à un poinçonnage d'une durée globale d'au moins 1 minute. In addition to the fact that the tool used for this operation is generally bulky and subject to frequent mechanical maintenance, the time necessary to carry out the punching is far too great. Indeed, the punch is set in motion at a constant speed of approximately 1 cm / min, which corresponds to a punching of an overall duration of at least 1 minute.

Ainsi, cette lenteur rend l'opération particulièrement délicate lorsque le moteur se trouve dans une position inconfortable, notamment dans le cas.  Thus, this slowness makes the operation particularly delicate when the motor is in an uncomfortable position, in particular in the case.

d'interventions aériennes. En outre, dans le cas d'opérations répétées, la perte de temps due au poinçonnage seul s'avére conséquente.aerial interventions. In addition, in the case of repeated operations, the loss of time due to punching alone is substantial.

Afin de pallier les inconvénients de l'art antérieur évoqués ci-dessus, l'invention a pour objet un procédé de raccordement qui soit à la fois efficace mais aussi rapide et simple à mettre en oeuvre. In order to overcome the drawbacks of the prior art mentioned above, the invention relates to a connection method which is both effective but also quick and simple to implement.

Pour ce faire, l'Invention a pour objet un procédé de raccordement de câbles électriques, incluant les phases décrites ci-dessus de dénudage des câbles et d'emmanchement des âmes à l'intérieur de la pièce de raccord, procédé dans lequel on poinçonne par coc la pièce de raccord autour des âmes conductrices du câble, par l'intermédiaire d'une tige venant frapper la surface extérieure de la pièce de raccord. To do this, the invention relates to a method of connecting electrical cables, including the phases described above of stripping the cables and fitting the cores inside the connection piece, process in which one punches by coc the connecting piece around the conductive cores of the cable, by means of a rod coming to strike the outside surface of the connecting piece.

La vitesse de frappe de la tige doit être suffisamment élevée pour assurer un poinçonnage efficace. The strike speed of the rod should be high enough to ensure efficient punching.

Dans le cas d'une tige réalisée en un matétiau généralement employé dans ie poinçonnage, tel que par exemple un acier trempé, la vitesse de frappe minimale doit être de 20 m/s, de manière préférée de 80 m/s et de manière particulièrement préférée de 100 m/s. In the case of a rod made of a material generally used in punching, such as for example hardened steel, the minimum impact speed must be 20 m / s, preferably 80 m / s and particularly preferred 100 m / s.

Le procédé de raccordement conforme à l'invention réalise les objectifs précédemment évoqués. En effet, le poinçonnage apparaît beaucoup plus rapide que dans les procédés utilisés jusqu'à présent, dans la mesure où la vitesse de frappe de la tige permet une action quasiinstantanée de cette dernière. The connection method according to the invention achieves the objectives mentioned above. Indeed, the punching appears much faster than in the processes used until now, insofar as the striking speed of the rod allows an almost instantaneous action of the latter.

En outre, l'impact provoqué par la tige permet de réaliser une liaison mécanique intime entre les âmes des câbles et la pièce de raccord. In addition, the impact caused by the rod allows an intimate mechanical connection to be made between the cable cores and the connecting piece.

Enfin, la Demanderesse a constaté de façon surprenante que l'action de la tige crée par friction des microsoudures locales entre les âmes et la pièce de raccord, ce qui garantit une parfaite continuité électrique entre les différents éléments. Finally, the Applicant has surprisingly found that the action of the rod created by friction of local microwelds between the cores and the connecting piece, which guarantees perfect electrical continuity between the different elements.

D'autres caractristiques et avantages de l'invention apparaissent à la lecture de la description d'un mode de réalisation, faite en référence au dessin annexé qui est une coupe transversale d'un dispositif particulier permettant la mise en oeuvre du procédé conforme à l'invention. Other characteristics and advantages of the invention appear on reading the description of an embodiment, made with reference to the appended drawing which is a cross section of a particular device allowing the implementation of the process according to the invention. 'invention.

Comme l'illustre la figure, les âmes 10 conductrices du câble, sont emmanchées dans le logement cylindrique 12 ménagé au sein de la pièce de raccord 14. As illustrated in the figure, the conductive cores 10 of the cable are fitted into the cylindrical housing 12 formed within the connecting piece 14.

Cette dernière est immobilisée au moyen d'une matrice 16 constituée de deux demi-pièces complémentaires réunies par une charnière 18, de manière à présenter un évidement central 20 dont les dimensions correspondent à celles de la pièce de raccord.The latter is immobilized by means of a matrix 16 consisting of two complementary half-pieces joined by a hinge 18, so as to have a central recess 20 whose dimensions correspond to those of the connecting piece.

Le poinçonnage de la pièce de raccord 14 autour des âmes 10 est assuré par un pistolet représenté partiellement et désigné dans son ensemble par la référence 22. Le pistolet 22 est pourvu d'un embout 24 de maintien de la matrice 16. Cet embout symétrique par rapport à l'axe vertical, possède une forme générale en U, et se trouve terminé dans sa partie inférieure, par deux ailes 26 orientées l'une en direction de l'autre. Cet embout 24 est dimensionné de manière à emboîter au mieux la matrice 16, en vue d'un maintien optimal. The punching of the connecting piece 14 around the cores 10 is ensured by a gun partially shown and designated as a whole by the reference 22. The gun 22 is provided with a nozzle 24 for holding the matrix 16. This symmetrical nozzle by relative to the vertical axis, has a general U-shape, and is terminated in its lower part, by two wings 26 oriented one towards the other. This end piece 24 is dimensioned so as to best fit the matrix 16, for optimal maintenance.

Dans sa partie supérieure, l'embout 24 définit un alésage central 26 au sein duquel une tige 28 cylindrique est à même de coulisser sous l'effet d'un moteur non représenté, qui peut être indifféremment pneumatique, hydraulique ou encore électrique. Cette tige 28 est réalisée par exemple en acier XC 48 trempe. In its upper part, the end piece 24 defines a central bore 26 within which a cylindrical rod 28 is able to slide under the effect of a motor not shown, which can be either pneumatic, hydraulic or even electric. This rod 28 is made for example from hardened XC 48 steel.

Lorsqu'elle est mise en mouvement, la tige 28 traverse l'échancrure 30 ménagée en regard dans la face supérieure de la matrice 16, puis frappe radialement la surface externe 32 de la pièce de raccord 14, afin de la sertir autour des âmes 10 conductrices. When it is set in motion, the rod 28 passes through the notch 30 arranged opposite in the upper face of the matrix 16, then strikes radially the external surface 32 of the connecting piece 14, in order to crimp it around the cores 10 conductive.

En vue d'assurer un raccordement efficace, la tige 28 doit pénétrer d'une profondeur égale à environ la moitié du diamètre total des âmes 10 conductrices.  In order to ensure an efficient connection, the rod 28 must penetrate a depth equal to approximately half the total diameter of the conductive cores.

Diverses modifications peuvent être apportées au procédé décrit ci-dessus, sans sortir du cadre de l'invention. Ainsi cette dernière trouve son application dans tout procédé de raccordement mis en oeuvre en utilisant un cuelconque dispositif moteur assurant le déplacement de la tige.  Various modifications can be made to the method described above, without departing from the scope of the invention. Thus the latter finds its application in any connection method implemented using a cunconque motor device ensuring the displacement of the rod.

Claims (4)

KEVEND CATIONSKEVEND CATIONS 1. - Procédé de raccordement de câbles électriques, consistant notamment à dénuder les âmes conductrices desdits câbles, à emmancher lesdites âmes à l'intérieur d'une pièce de raccord, caractérisé en ce que l'on poinçonne par choc la pièce de raccord (14) autour des âmes conductrices (10), par l'intermédiaire d'une tige (28) venant frapper la surface extérieure (32) de la pièce de raccord (14). 1. - Method for connecting electrical cables, consisting notably of stripping the conductive cores of said cables, fitting said cores inside a connecting piece, characterized in that the connecting piece is punched (by impact) 14) around the conductive cores (10), by means of a rod (28) striking the outer surface (32) of the connecting piece (14). 2. - Procédé selon la revendication 1, caractérisé en ce que la vitesse de frappe minimale de la tige est de 20 m/s. 2. - Method according to claim 1, characterized in that the minimum striking speed of the rod is 20 m / s. 3. - Procédé selon la revendication 1, caractérisé en ce que la vitesse de frappe minimale de la tige est de 80 m/s. 3. - Method according to claim 1, characterized in that the minimum striking speed of the rod is 80 m / s. 4. - Procédé selon la revendication 1, caractérisé en ce que la vitesse de frappe minimale de la tige est de 100 m/s.  4. - Method according to claim 1, characterized in that the minimum striking speed of the rod is 100 m / s.
FR9408800A 1994-07-15 1994-07-15 METHOD FOR CONNECTING ELECTRIC CABLES Expired - Lifetime FR2722619B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9408800A FR2722619B1 (en) 1994-07-15 1994-07-15 METHOD FOR CONNECTING ELECTRIC CABLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9408800A FR2722619B1 (en) 1994-07-15 1994-07-15 METHOD FOR CONNECTING ELECTRIC CABLES

Publications (2)

Publication Number Publication Date
FR2722619A1 true FR2722619A1 (en) 1996-01-19
FR2722619B1 FR2722619B1 (en) 1997-04-04

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FR9408800A Expired - Lifetime FR2722619B1 (en) 1994-07-15 1994-07-15 METHOD FOR CONNECTING ELECTRIC CABLES

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323758A (en) * 1938-11-22 1943-07-06 Temple Velocity Equipment Inc Apparatus for performing work on metal
CH324852A (en) * 1954-01-07 1957-10-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electrical line connection
DE1465092A1 (en) * 1963-06-21 1969-01-23 Amp Inc Method and device for compressing a workpiece
DE1917202A1 (en) * 1968-04-09 1969-10-23 British Ship Res Assoc Wallsen Method for joining aluminum parts
US3584496A (en) * 1968-05-03 1971-06-15 Amp Inc Magnetic actuator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323758A (en) * 1938-11-22 1943-07-06 Temple Velocity Equipment Inc Apparatus for performing work on metal
CH324852A (en) * 1954-01-07 1957-10-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electrical line connection
DE1465092A1 (en) * 1963-06-21 1969-01-23 Amp Inc Method and device for compressing a workpiece
DE1917202A1 (en) * 1968-04-09 1969-10-23 British Ship Res Assoc Wallsen Method for joining aluminum parts
US3584496A (en) * 1968-05-03 1971-06-15 Amp Inc Magnetic actuator

Also Published As

Publication number Publication date
FR2722619B1 (en) 1997-04-04

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