EP0000731B1 - Procédé de réalisation de dérivations sur un câble électrique isolé - Google Patents

Procédé de réalisation de dérivations sur un câble électrique isolé Download PDF

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Publication number
EP0000731B1
EP0000731B1 EP78100502A EP78100502A EP0000731B1 EP 0000731 B1 EP0000731 B1 EP 0000731B1 EP 78100502 A EP78100502 A EP 78100502A EP 78100502 A EP78100502 A EP 78100502A EP 0000731 B1 EP0000731 B1 EP 0000731B1
Authority
EP
European Patent Office
Prior art keywords
cable
incision
conductor
sheath
conductor element
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
EP78100502A
Other languages
German (de)
English (en)
Other versions
EP0000731A1 (fr
Inventor
Jean Trigon
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.)
Electricfil SA
Original Assignee
Electricfil 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 Electricfil SA filed Critical Electricfil SA
Publication of EP0000731A1 publication Critical patent/EP0000731A1/fr
Application granted granted Critical
Publication of EP0000731B1 publication Critical patent/EP0000731B1/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
    • 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
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/021—Soldered or welded connections between two or more cables or wires
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor

Definitions

  • the invention relates to a method for producing branches on an electrical cable insulated by a continuous sheath, in which an electrical connection point is formed at a branch point of the cable having a core within the sheath, the sheath being opened in the region of the branch point and through which Opening a piece of ladder sticks into the inside of the shell.
  • At least one cable end is first stripped.
  • the cable is further stripped over a predetermined small distance in the area of the branch to be formed, and a conductor piece is then inserted into the interior of the cable in such a way that the small cables located here and forming the soul, which are individually insulated again, do not have their own insulation to be damaged.
  • a conductive solution liquid is introduced and after the formation of electrical connections, the electrical connection between the conductor piece and the desired small cable within the soul is produced via the conductive solution liquid.
  • the present invention has for its object to provide a method according to the preamble of claim 1, which allows the creation of large contact areas in a very simple manner within wide limits and keeps stripping work of negligible order of magnitude.
  • the solution according to the invention consists in a method of the generic type in that the sheath is opened by an access to the electrically conductive part of the core of the cable giving incision, the conductor piece between the electrically conductive part of the core of the cable and the insulating sheath under friction by the Formed access is inserted such that the conductor piece lies on a predetermined length extension of the cable in contact with the electrically conductive part of the soul.
  • Cutting in with an appropriate tool is very easy to do, although stripping work is not really necessary.
  • the size of the contact surface can be easily adapted to the desired size. Since the incision gives direct access to the electrically conductive part of the soul, aids such as electrically conductive solution liquids and the like are not required.
  • the use of equipment for carrying out the method is also extremely small. In principle, nothing is required other than the tool for making the incision and the conductor pieces themselves. Flanging work and also welding or soldering work are not absolutely necessary, at least in principle.
  • Preferred embodiments of the method according to the invention result from the subclauses.
  • the cable can be expedient to bend the cable at the location of the incision in the order of 90 °, so that the resulting widening of the incision on the outer jacket of the sheath makes it easier to insert the conductor piece.
  • the lateral lips of the insertion incision are expanded elastically.
  • a line piece with an essentially rectangular cross section is used. Its part protruding from the cable is preferably bent over after insertion.
  • two lines are inserted through the access created in opposite directions, the two sections of which lie outside the cable and are mechanically and electrically connected to one another in such a way that the branch cannot be detached.
  • the two conductor section sections are twisted together outside the main cable.
  • the welding can take place after local preheating by compressing the end of the conductor section or sections as close as possible to the branch point between two graphite electrodes, which are caused by a current of great strength.
  • Other types of welding or soldering are also possible.
  • the incision is closed by a sealant.
  • the connection zone can be easily encapsulated with a suitable material. In this case it is also possible to achieve the tightness of the connection zone by surrounding it with two insulating half-shells.
  • the incision for the insertion is made at the point of the junction, either by grinding the insulating sheath or by inserting it with a suitable tool.
  • FIG. 2 shows a section of an electrical cable 1 which has a conductive core 2, which is formed, for example, from a wire strand 3 and which is surrounded by a continuous insulating sheath 4.
  • a cut 5 in the form of a cylindrical segment is machined into the insulating sheath 4, which gives access to the conductive core 2 and defines the lips 6 and 7.
  • the cable section according to FIG. 2 is subjected to an inclination of approximately 90 ° in order to elastically remove the lips 6 and 7 from one another and thus to facilitate the insertion of one or more conductor pieces which are to form the branch. If the branch is produced using only a single conductor section, this is inserted into the incision 5 in a position as shown by the conductor section 8. The end 10 of this conductor piece is then bent up and then takes the position as shown in Fig. 4.
  • the branch is constructed from two conductor pieces 8 and 9, as shown in the exemplary embodiment, these conductor pieces are inserted one after the other, as can be seen from FIG. 3.
  • the end 11 of this conductor piece 9 is first bent so that the insertion of the second conductor piece 8 is easily possible, as can be seen in FIG. 3.
  • the conductor pieces are in longitudinal alignment of the core 2 in contact with it by means of the sections 12 and 13, while the ends 10 and 11, which are then at right angles, are adjacent to each other, as shown in fig. 4 can be seen.
  • the two ends 10 and 11 can be firmly connected to one another, for example by twisting, as shown in FIG. 5.
  • Fig. 1 shows the possibility of providing a plurality of corresponding branches 15 on a continuous cable 14.
  • the incision 5 can be made by grinding or by piercing or piercing using a suitable tool.
  • the conductor pieces 8 and 9 can be adapted to the problem to be solved in each case.
  • they have a rectangular cross section, their width defining the contact area with the conductive core and their thickness determining the strength of the insertion and the clamping between the sheath 4 and the core 2, on the one hand, and the possible current intensity of the current to be branched, on the other hand.
  • sections 12 and 13 have a length of the order of 30 mm, for example. 5, the two ends 10 and 11 are twisted together and cut to length. However, they can also be covered with a common cable lug to be crimped and can be electrically connected in this way.
  • the insulating sleeve 4 is close to the The circumference of the ends 10 and 11 of the conductor pieces, which protrude from the sheath, the tightness can be improved even further, if, for example, cable branches are to be used in damp locations by applying a sealant locally in the area of the incision.
  • FIG. 6 Another possibility of forming a seal in the area of the connection between the cable 1 and the conductor pieces 8 and 9 is shown in FIG. 6.
  • the line piece 8 is insulated by a sheath 21 in its area which has not been used to form the connection.
  • a encapsulation 22 surrounds the entirety of the connection zone and ensures tightness both on the sheath 4 of the cable 1 and on the sheath 21 of the conductor piece 8.
  • FIG. 7 Another way of forming a seal is shown in FIG. 7.
  • the conductor piece 8 is insulated by a sheath 21 in the area which has not been used to form the connection.
  • the cable should have a certain flexibility.
  • the cable can have a simple insulating sheath or a sheath made of a composite material. It can also be considered in certain applications to give sections 12 and 13 a cylindrical segment-shaped profile in order to achieve an optimal contact area with the conductive core of the cable.
  • the branch according to the invention prepares for reinforcement by welding in a particularly simple manner.
  • a method of working can be selected which includes direct heating through the Joule effect.
  • the twisted branch piece 15 After local preheating at the level of the branch, the twisted branch piece 15 is clamped as close as possible to the point of the branch between two graphite electrodes 17 and 18, which are connected to conductors 19 and 20 of a circuit through which heavy current flows. Local warming continues through heat conduction to soul 2. The end of the wire 16 melts and the tin is gravitationally infiltrated between the two sections 12 and 13 of the conductor pieces and the core of the cable.
  • an insulating sleeve 4 for example made of an elastomer or a thermoplastic elastomer, which resists the local temperature increase.
  • the corresponding ends of the conductor pieces can also be tinned to prepare for welding.
  • the branch can also be formed from one or more than two conductor pieces.
  • the method according to the invention enables the use of multiple forms of implementation which can be adapted to a particular degree to the connection problem to be solved in each case.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulated Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Processing Of Terminals (AREA)

Claims (16)

1. Procédé de réalisation de dérivations sur un câble électrique (1) isolé par une gaine continue (4), consistant à créer, en un point de dérivation d'un câble comportant une âme (2) entourée d'une gaine, un point de jonction électrique, où on forme, au niveau de point de dérivation, une ouverture dans la gaine, et à travers cette ouverture, on insère un élément conducteur (8,9) à l'intérieur de la gaine, caractérisé en ce que:
La gaine est ouverte par une entaille (5) donnant accès à la partie de l'âme (2) du câble (1) que est conductrice de l'électricité, et l'élément conducteur (8,9) est inséré à frottement par l'accès ainsi formé, entre la partie électriquement conductrice de l'âme (2) du câble (1) et la gaine isolante (4), de telle sorte que l'élément conducteur (8,9) se trouve en contact avec la partie électriquement conductrice de lâme (2) sur une longueur prédéterminée, dans le sens longitudinal du câble (1).
2. Procédé suivant la revendication 1, caractérisé en ce que, pour l'insertion de l'élément conducteur (8,9) par l'entaille (5), on fait subir au câble une flexion d'environ 90° à l'endroit de l'entaille (5), cette dernière étant située sur la génératrice extérieure du câble.
3. Procédé suivant la revendication 1 ou 2, caractérisé en ce que on utilise un élément conducteur (8,9) généralement de section transversable rectangulaire.
4. Procédé suivant une des revendications ci- dessus, caractérisé en ce que l'extrémité (10,11) de l'élément conducteur (8,9) extérieure au câble (1) est coudée par rapport à l'axe longitudinal du câble.
5. Procédé selon une des revendications ci- dessus, caractérisé en ce que, par l'accès formé par l'entaille (5), on introduit deux éléments conducteurs (8 et 9) en sens inverse l'un de l'autre, leurs extrémités (10 et 11) extérieures au câble (1) étant reliées entre elles électriquement.
6. Procédé selon la revendication 5, caractérisé en ce que les extrémités des éléments conducteurs (10 et 11 ) sont torsadées en vue de leur jonction électrique.
7. Procédé selon une des revendications 1 à 4, caractérisé en ce que l'élément conducteur (8,9) est relié électriquement au câble (1) par soudage.
8. Procédé selon la revendications 5 ou 6, caractérisé en ce que les éléments conducteurs (8 et 9) sont reliés entre eux et au càble (1) par soudage.
9. Procédé selon la revendication 7 ou 8, caractérisé en ce que, après un préchauffage localisé, le soudage est réalisé par apport d'étain et de décapant au niveau de l'entaille (5), et par serrage des extrémités (10,11) des éléments conducteurs extérieures au câble, le plus près possible du point de dérivation, entre deux électrodes de graphite (17,18) qui sont parcourues par un courant de forte intensité.
10. Procédé selon une des revendications 7 à 9, caractérisé en ce que le ou les éléments conducteurs (8,9) sont étamés.
11. Procédé selon une des revendications ci- dessus, caractérisé en ce que l'entaille (5) est obturée par un produit d'étanchéité.
12. Procédé selon une des revendications 1 à 10, caractérisé en ce que la zone de jonction entre le câble électrique (1) et le ou les éléments conducteurs (8,9) qui forment la dérivation, est surmoulée avec un produit approprié.
13. Procédé suivant une des revendications 1 à 10, caractérisé en ce que la zone de jonction entre le ou les éléments conducteurs (8,9), qui forment la dérivation, et le câble électrique (1), est rendue étanche par assemblage de deux demi-coquilles (23,24) isolantes.
14. Procédé selon une des revendication ci- dessus, caractérisé en ce que l'entaille (5) est créée par meulage de la gaine isolante (4) du câble (1).
15. Procédé selon une des revendications 1 à 13, caractérisé en ce que l'entaille (5) est créée par perçage au moyen d'un outil approprié.
16. Procédé selon une des revendications ci- dessus, caractérisé en ce que, sur au moins la partie de l'élément conducteur (8,9) insérée entre l'âme conductrice (2) et la gaine isolante (4) du câble (1), cet élément conducteur (8,9) a un profil transversal adapté à celui l'âme conductrice (2).
EP78100502A 1977-07-29 1978-07-26 Procédé de réalisation de dérivations sur un câble électrique isolé Expired EP0000731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7723395A FR2399139A1 (fr) 1977-07-29 1977-07-29 Derivations multiples sur conducteurs electriques isoles par une gaine continue
FR7723395 1977-07-29

Publications (2)

Publication Number Publication Date
EP0000731A1 EP0000731A1 (fr) 1979-02-21
EP0000731B1 true EP0000731B1 (fr) 1980-12-10

Family

ID=9193996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100502A Expired EP0000731B1 (fr) 1977-07-29 1978-07-26 Procédé de réalisation de dérivations sur un câble électrique isolé

Country Status (7)

Country Link
US (1) US4216578A (fr)
EP (1) EP0000731B1 (fr)
JP (1) JPS5463290A (fr)
DE (1) DE2860294D1 (fr)
ES (1) ES472192A1 (fr)
FR (1) FR2399139A1 (fr)
IT (1) IT1097429B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110289534A (zh) * 2019-07-02 2019-09-27 无锡振特电子有限公司 一种电动汽车线束的生产工艺

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979485A (en) * 1930-04-16 1934-11-06 Lloyd J Mcpartlin Rubber safety socket
US1980197A (en) * 1932-04-06 1934-11-13 Bell Telephone Labor Inc Method of sealing conductors in plates
US2260121A (en) * 1939-11-27 1941-10-21 Mines Equipment Company Wiring device
US2315720A (en) * 1941-03-15 1943-04-06 Bell Telephone Labor Inc Electrical connecting device
US2845605A (en) * 1954-05-06 1958-07-29 Vector Mfg Company Cable take-out
GB933308A (en) 1959-03-04 1963-08-08 Bowthorpe Electric Company Ltd Improvements in or relating to electrical connections
US3153119A (en) * 1962-03-21 1964-10-13 Oliver M Hart Portable insulated electric distribution structure and method of manufacture thereof
US3325765A (en) * 1964-07-30 1967-06-13 Neoline Inc Portable electrical power distribution apparatus and method of manufacture thereof
US3248475A (en) * 1964-11-18 1966-04-26 Trylon Inc Antenna insulator
GB1311067A (en) * 1970-08-07 1973-03-21 British Insulated Callenders Electric cables
GB1394831A (en) 1971-05-18 1975-05-21 British Insulated Callenders Electric cable jointing techniques
IT996720B (it) 1973-09-21 1975-12-10 Fiat Spa Procedimento per munire di termi nali un microcavo
DE2421128A1 (de) * 1974-05-02 1975-11-13 Gummi Roller Gmbh & Co Kg Schlauch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110289534A (zh) * 2019-07-02 2019-09-27 无锡振特电子有限公司 一种电动汽车线束的生产工艺

Also Published As

Publication number Publication date
EP0000731A1 (fr) 1979-02-21
FR2399139B1 (fr) 1981-07-03
IT7826158A0 (it) 1978-07-27
IT1097429B (it) 1985-08-31
DE2860294D1 (en) 1981-02-19
JPS5463290A (en) 1979-05-22
FR2399139A1 (fr) 1979-02-23
ES472192A1 (es) 1979-02-16
US4216578A (en) 1980-08-12

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