EP0008984B1 - Isolierte Verbindungsvorrichtung für elektrische Leiter - Google Patents

Isolierte Verbindungsvorrichtung für elektrische Leiter Download PDF

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Publication number
EP0008984B1
EP0008984B1 EP79400609A EP79400609A EP0008984B1 EP 0008984 B1 EP0008984 B1 EP 0008984B1 EP 79400609 A EP79400609 A EP 79400609A EP 79400609 A EP79400609 A EP 79400609A EP 0008984 B1 EP0008984 B1 EP 0008984B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
cavity
insulating
conductor
conductive sleeve
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
EP79400609A
Other languages
English (en)
French (fr)
Other versions
EP0008984A1 (de
Inventor
René Grandjean
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.)
Nexans Interface SA
Original Assignee
Mars-Alcatel SA
Mars Actel 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
Priority claimed from FR7825373A external-priority patent/FR2435137A1/fr
Priority claimed from FR7830898A external-priority patent/FR2440630A2/fr
Application filed by Mars-Alcatel SA, Mars Actel SA filed Critical Mars-Alcatel SA
Priority to AT79400609T priority Critical patent/ATE3798T1/de
Publication of EP0008984A1 publication Critical patent/EP0008984A1/de
Application granted granted Critical
Publication of EP0008984B1 publication Critical patent/EP0008984B1/de
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
    • 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
    • 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
    • H01R4/70—Insulation of connections

Definitions

  • the present invention relates to a sealed device for connecting two insulated electrical conductors making it possible to simultaneously ensure the electrical junction of the conductors and the dielectric continuity of the insulators, comprising on the one hand a conductive sleeve in one piece of malleable material comprising two cavities for each receiving a conductor including an insulated part of the latter, and further comprising an insulating sleeve which envelops said conductive sleeve, each conductor being held in its cavity after insertion by radial crimping of the conductive sleeve at the level of the cavity .
  • Such a device is known, for example from document US-A-3,011,010.
  • the insulating sleeve of this device is compressed axially during the mounting of the conductors and thus clears the openings of the two cavities. After placing the conductors and crimping their ends in the cavities of the conductive sleeve, the insulating sleeve is released and the edges of this sleeve then conform to the insulation of the two conductors outside the cavities.
  • these edges not being crimped on the insulator of the conductors, the sealing is imperfect and attacks of galvanic origin deteriorate the cables and sleeves when the conductors of different nature are brought together, for example in the case of a copper core conductor combined with an aluminum core conductor.
  • document US-A-2 751 570 shows a connection device with a conductive sleeve which has two cavities for the metallic core of the two conductors, this core being held in its cavity by crimping the sleeve. .
  • additional sleeves are provided on either side of the conductive sleeve, which are crimped onto the conductive insulator and on the edge of the conductive sleeve.
  • the drawback of this device is that it requires two crimping operations and that the conductive sleeve is not protected from the outside, which entails the risk of moisture penetration between the two sleeves.
  • the object of the invention is to provide a device as specified above which ensures, by a single crimping, the maintenance of the conductors and a perfect seal of the connection.
  • a sealed device for connecting two insulated electrical conductors making it possible to simultaneously ensure the electrical junction of the conductors and the dielectric continuity of the insulators, comprising on the one hand a conductive sleeve in one piece of malleable material comprising two cavities to each receive a conductor including an insulated part thereof, and further comprising an insulating sleeve which envelops said conductive sleeve, each conductor being held in its cavity after insertion by radial crimping of the conductive sleeve at the cavity, which is characterized in that at each end, the insulating sleeve is associated with an insulating tube, which enters by a first part into said cavity, and of which another part outside this cavity is tightly fixed to the sleeve insulating.
  • FIGS 3, 4 and 5 show in section three variants of the device according to the invention.
  • the device comprises a tubular sleeve 1 of malleable conductive metal surrounded by an insulating sleeve 2.
  • the sleeve 1 has a partition 4 which serves as a stop for positioning the conductor inside the sleeve 1.
  • the insulating sleeve 2 extends from there from the ends of the sleeve 1 so as to cover over a certain length the insulating conductor 7.
  • Figure 1 shows the conductor before crimping, in position in the metal sleeve 1, with its stripped portion 8 surrounded by grease 9 ensuring sealing and better contact.
  • the device further comprises an insulating tube 11 which penetrates inside the conductive sleeve into a bore 10.
  • the tube 11 has an outside diameter substantially equal to the inside diameter of the bore 10 at the end of the conductive sleeve so as to be able get inside of it.
  • the tube 11 can be made of the same material as the insulating rod 2, for example it can be constituted by a sheath of small thickness made of heat-shrinkable PVC.
  • the conductive sleeve can be made for example from copper, aluminum, or an alloy of one of these metals.
  • the tube 11 is glued or welded to a certain part of the end of the insulating sleeve 2 either by cold plastic glue or by a hot foaming coating.
  • Figure 2 shows the sleeve of Figure 1 after crimping the conductive sleeve on the conductors.
  • a sealing crimp at 12 simultaneously crushes the insulating sleeve 2, the conductive sleeve 1 and the insulating tube 11 on the insulator 7 of the conductor thus ensuring the tightness of the connection device.
  • the other crimps produced on the middle part of the insulated sleeve, at 13 for example ensuring both the retention of the conductors in the sleeve and the good contact between the conductive sleeve and the stripped conductors 8.
  • FIG. 3 represents a variant in which the end tube has two parts 14 and 15, the part 14 having an outside diameter matching the end bore 10 of the conductive sleeve 1 and the part 15 having a diameter equal to outer diameter of the conductive sleeve 1.
  • the part 14 of the tube 11 is introduced into the bore 10 of the conductive sleeve 1, the part 15 remaining outside the conductive sleeve.
  • the tube 11 is either glued or force-fitted into the bore 10 of the conductive sleeve 1.
  • the sealing crimp 12 is produced at the part 14 so as to compress the conductive sleeve and the tube 13 on the insulator 7 of the conductor.
  • FIG. 4 gives another variant of the end tube 16 comprising an inner tube 11 and an outer flap 17 folded over the end of the insulating sleeve 2 and the conductive sleeve 1.
  • the sealing crimp 12 is also made so as to compress the insulating sleeve 2, the conductive sleeve 1 and the tube 11 on the insulator of the conductor.
  • the tube 16 is glued, welded or forced into the end bore 10 of the conductive sleeve.
  • the flap 17 is glued, welded or force-fitted onto the insulating sleeve 2.
  • the insulating sleeve 2 for the various embodiments is made of an insulating material having the property on the one hand of being deformed to trap the metallic sleeve and on the other hand of mechanically resisting the forces developed for the formation of teeth or crimps or deformations without these forces produce harmful effects on said insulating material, it is possible to use, for example, a polyamide sleeve known under the trade name "nylon” or polyvinyl chloride (PVC).
  • the insulating sleeve is tightened on the conductive sleeve so as to prevent any longitudinal displacement between the insulating sleeve and the conductive sleeve.
  • An advantage of the invention is that the conductor placed inside the sleeve before crimping, maintains itself in the sleeve, which frees the hands for the crimping operation.
  • FIG. 4 represents a variant in which the end tube 18 has a knockout wall 19 which ensures, after introduction of the conductor into the sleeve, a pressure on the insulator of the conductor and therefore the conductor is held in the sleeve which releases hands for the crimping operation.
  • the part 19 may include an opening 20 which facilitates its deformation when the conductor is introduced into the sleeve.
  • the left part of FIG. 5 represents the sleeve before introduction of the cables and the right part of FIG. The sleeve after introduction of the cable.

Landscapes

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

Claims (6)

1. Dichte Verbindungsvorrichtung für zwei isolierte elektrische Leiter, die gleichzeitig die elektrische Verbindung der Leiter und die dielektrische Kontinuität der Isolierungen ermöglicht, wobei die Vorrichtung einerseits eine leitende Muffe (1) aus einem Stück aus verformbarem Material mit zwei Hohlräumen, in die je ein Leiter (8) einschließlich einem isolierten Bereich dieses letzteren eingeführt wird, und andererseits eine siolierende Muffe (2) aufweist, die die leitende Muffe umgibt, wobei jeder Leiter in seinem Hohlraum nach dem Einführen durch radiales Zusammenpressen der leitenden Muffe in Höhe des Hohlraums gehalten wird, dadurch gekennzeichnet, daß die isolierende Muffe an jedem Ende einem isolierenden Rohr (11) zugeordnet ist, von dem ein erster Teil in diesen Höhlraum eindringt und ein anderer Teil außerhalb dieses Hohlraums auf dichte Weise an der isolierenden Muffe (2) befestigt ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Rohr (11) durch Kleben oder Schweißen an der isolierenden Muffe (2) befestigt ist.
3. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Ende des ersten Teils eine Verengung (19) aufweist, die die Isolierung (7) des Leiters nach seiner Einführung in den Hohlraum fest umschließt.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der andere Teil an der Innenseite eines Teils der isolierenden Muffe (2) befestigt ist, der sich jenseits des Endes der leitenden Muffe befindet.
5. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der andere Teil auf die Außenfläche der isolierenden Muffe umgebogen und auf dieser befestigt ist.
6. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Rohr (11) in seinem ersten Teil einen Außendurchmesser aufweist, der dem Innendurchmesser des entsprechenden Bereichs des Hohlraums entspricht, während es in seinem anderen Teil einen äußeren Durchmesser gleich dem äußeren Durchmesser der leitenden Muffe aufweist.
EP79400609A 1978-09-04 1979-09-04 Isolierte Verbindungsvorrichtung für elektrische Leiter Expired EP0008984B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79400609T ATE3798T1 (de) 1978-09-04 1979-09-04 Isolierte verbindungsvorrichtung fuer elektrische leiter.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7825373 1978-09-04
FR7825373A FR2435137A1 (fr) 1978-09-04 1978-09-04 Dispositif de raccordement pour conducteurs electriques
FR7830898 1978-10-31
FR7830898A FR2440630A2 (fr) 1978-10-31 1978-10-31 Dispositif de raccordement pour conducteurs electriques

Publications (2)

Publication Number Publication Date
EP0008984A1 EP0008984A1 (de) 1980-03-19
EP0008984B1 true EP0008984B1 (de) 1983-06-15

Family

ID=26220740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400609A Expired EP0008984B1 (de) 1978-09-04 1979-09-04 Isolierte Verbindungsvorrichtung für elektrische Leiter

Country Status (3)

Country Link
EP (1) EP0008984B1 (de)
DE (1) DE2965664D1 (de)
ES (1) ES483896A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103840276A (zh) * 2014-03-31 2014-06-04 国网上海市电力公司 一种绝缘母线的连接装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2006878A6 (es) * 1988-03-30 1989-05-16 Capelles De La Fuente Rosa Dispositivo de conexion electrica para el enlace de conductores aislados.
FR2668661A1 (fr) * 1990-10-31 1992-04-30 Auxitrol Mat Auxil Signalisati Procede et dispositif de solidarisation avec etancheite, de deux elements dont au moins l'un est un cable electrique ou analogue, et tube pour la mise en óoeuvre du procede.
GB9102661D0 (en) * 1991-02-07 1991-03-27 Raychem Sa Nv Electrical crimp connector
US5422438A (en) * 1991-02-07 1995-06-06 Raychem Sa Electrical crimp connector
CN105470907A (zh) * 2015-12-04 2016-04-06 国家电网公司 一种电力电缆中间接头

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123663A (en) * 1964-03-03 Insulated electrical connectors
US2751570A (en) * 1950-10-26 1956-06-19 Aircraft Marine Prod Inc Electrical connector
CH340262A (de) * 1954-07-23 1959-08-15 Amp Inc Verbinder zur elektrischen Verbindung von zwei abgeschirmten Kabeln
FR1156109A (fr) * 1955-08-30 1958-05-13 Aircraft Marine Products Connecteur électrique isolé
FR1215454A (fr) * 1958-02-07 1960-04-19 Burndy Corp Joint épissé isolé
US2946839A (en) * 1959-02-24 1960-07-26 William A Horning Sleeve type joint protector
US3011010A (en) * 1959-10-23 1961-11-28 Frederick E Lively Self-insulating connector
US3428739A (en) * 1967-01-12 1969-02-18 Kings Electronics Co Inc Sealed crimp-type coaxial cable connection
SE344394B (de) * 1970-08-07 1972-04-10 Ericsson Telefon Ab L M
CA954959A (en) * 1970-11-16 1974-09-17 Raychem Corporation Heat recoverable article
GB1434719A (en) * 1972-09-01 1976-05-05 Raychem Ltd Heat recoverable products
GB1468369A (en) * 1973-02-23 1977-03-23 Gen Staple Co Method of making an insulated splice or an insulated terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103840276A (zh) * 2014-03-31 2014-06-04 国网上海市电力公司 一种绝缘母线的连接装置

Also Published As

Publication number Publication date
ES483896A1 (es) 1980-04-01
EP0008984A1 (de) 1980-03-19
DE2965664D1 (en) 1983-07-21

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