EP0138700B1 - Connecteur pour câbles électriques isolés - Google Patents

Connecteur pour câbles électriques isolés Download PDF

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Publication number
EP0138700B1
EP0138700B1 EP84402009A EP84402009A EP0138700B1 EP 0138700 B1 EP0138700 B1 EP 0138700B1 EP 84402009 A EP84402009 A EP 84402009A EP 84402009 A EP84402009 A EP 84402009A EP 0138700 B1 EP0138700 B1 EP 0138700B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
skirt
connector
cables
crimping
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
EP84402009A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0138700A1 (fr
Inventor
Eric Dominique Sauer
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.)
Ceraver SA
Original Assignee
Ceraver 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 Ceraver SA filed Critical Ceraver SA
Priority to AT84402009T priority Critical patent/ATE29804T1/de
Publication of EP0138700A1 publication Critical patent/EP0138700A1/fr
Application granted granted Critical
Publication of EP0138700B1 publication Critical patent/EP0138700B1/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
    • 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
    • H01R4/203—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 having an uneven wire-receiving surface to improve the contact
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • 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 connector for insulated electrical cables, and more particularly a connector of the type comprising a conductive sleeve having two opposite housings for the stripped ends of two cables to be connected, an insulating skirt surrounding the sleeve and seals interposed between the skirt and the ends of the cable insulation sheaths, the mechanical connection between the connector and the stripped ends of the cables having to be carried out by crimping the connector on the ends of the cables.
  • Fig. 1 illustrates such a known connector; the right part shows the connector before crimping, with the sleeve 1, the skirt 2 and the seal 3; the left part shows the connector after crimping, the sleeve being crimped on the stripped end of the cable while the seal is compressed between the cable insulation sheath and the skirt due to the elongation of the sleeve .
  • the dielectric tightness produced by the seal 3 after crimping is not always satisfactory. Indeed, for the same joint, this tightness depends on the shape of the cable sheath, shape which varies according to the manufacturers. In addition, in the case of polyphase lines, the identification of the phases is sometimes carried out by marks in relief on the sheaths of the cables, which prevents obtaining a good dielectric tightness.
  • the object of the present invention is to remedy this drawback by proposing a connector by which good dielectric tightness is obtained independently of possible variations in the shape of the outer sheath of the cables to be connected.
  • the dielectric seal obtained is made independent of possible variations or irregularities in the shape of the cable insulation sheath, and effective compression of the seals during crimping is obtained thanks to the extension of the skirt. higher than that of the sleeve.
  • the outer surface of the sleeve and the corresponding inner surface of the skirt have a diameter which varies between the middle of the connector and each end of the latter. Thanks to this form, for example in “barrel” or biconical, components of axial forces are generated during crimping and allow the desired differential elongation to be obtained without the need for several crimping passes.
  • the sleeve has at least one notch cooperating with a part of the skirt projecting inside thereof, so that the crimping causes the projection of this projecting part out of the 'notch and its abutment at the end of the sleeve, thus preventing the return of the projecting part in the notch after crimping.
  • This arrangement also contributes to ensuring the differential elongation necessary for good compression of the seals.
  • the connector 10 illustrated in FIG. 2 comprises a metallic sleeve 11, electrically conductive, a skirt 15 of insulating synthetic material and two seals 21, 22 also made of an insulating synthetic material.
  • the cylindrical sleeve 11 comprises two opposite housings 12, 13 opening on its end faces and intended to receive the stripped ends 23, 24 of the cables to be connected 25, 26 (shown in dashes in FIG. 2).
  • the skirt 15 is in two parts 16, 17 placed on the sleeve 11 from the two ends of the latter and joined in the central part of the connector by overmolding of a connecting piece 20 of a material similar to that of parts 16 and 17.
  • the part 20 has a central part molded on a flange 14 of the sleeve 11 and two lateral annular parts penetrating into grooves formed in the parts 16, 17 in the vicinity of their adjacent ends.
  • the skirt 15 has end portions 16 ", 17" of greater thickness, the internal diameter corresponds substantially to the external diameter of the insulation sheaths 27, 28 of the cables 25, 26.
  • Internal flanges 18, 19 integral with the skirt 15 are formed substantially at the connections of the end portions 16 a , 17 a with the rest the skirt 15; they limit the engagement of the skirt parts 16, 17 on the sleeve 11 by coming into contact with the ends of the sleeve and have an internal diameter greater than that of the stripped part of the cables.
  • the seals 21, 22 are housed in the end portions 16 ", 17" of the skirt 15. They are for example made of synthetic rubber and have a cross section substantially equal to that of the insulation sheaths 27, 28 of the cables. 25, 26. However, the seals 21, 22 may be given an outside diameter slightly greater than the inside diameter of the end portions 16 ", 17 a so that the seals 21, 22 can be immobilized permanently at the ends of the skirt 15.
  • the cables 25, 26 are connected as follows.
  • the stripped ends 23, 24 of the cables 25, 26 are introduced into the housings 12, 13 through the seals 21, 22 until the end faces 27 ", 28" of the insulation sheaths 27, 28 come into contact seals 21, 22, applying these against the flanges 18, 19.
  • the connector 10 is crimped on each end of the cable.
  • the sleeve 11 is successively tightened on one and the other stripped end, ensuring the mechanical and electrical connection between the cables 25, 26.
  • the parts of the skirts 16, 17 lengthen, compressing the seals 21, 22.
  • the seals 21, 22 are crushed between the flanges 18, 19 and the end faces 27 ", 28" of the insulation sheaths 27, 28.
  • the seals thus ensure perfect dielectric tightness independently of variations in shape or size of the sheaths 27, 28 which can give rise to play between the peripheral surfaces of the latter and the end portions of the skirt 15.
  • a material having a coefficient of elongation greater than that of the material constituting the sleeve 11 is chosen for the skirt parts 16, 17.
  • the skirt parts 16, 17 an injectable plastic material such as a polyamide, the sleeve 11 being of an aluminum alloy such as that known under the name A5. This difference in elongation coefficient results, after crimping, in clearances 29 between the ends of the sleeve 11 and the flanges 18, 19.
  • Obtaining sufficient differential elongation to ensure the desired compression of the seals 21, 22 may require a relatively long shrinking zone, the shrinking may require several crimping passes.
  • Figs. 4 and 5 show the connector 30 before crimping. It includes a metal sleeve 31, a skirt 35 and two seals 41, 42.
  • the sleeve 31 has a barrel, or biconical, shape with a decreasing outside diameter from the middle of the sleeve to each end of the latter. At these ends, the sleeve 31 has two cylindrical housings 32, 33 intended to receive the stripped ends 43, 44 of cables to be connected 45, 46 (shown in dashes in FIG. 4).
  • the skirt 35 is obtained by overmolding. It has an internal surface which adapts to the external surface of the sleeve 31, which gives it an increasing thickness from the middle of the sleeve in the direction of each end.
  • the end parts 36 a , 37 "of the skirt 35 have internal flanges 38, 39 similar to those 18, 19 of the end parts of the skirt 15 of FIG. 2 but are distinguished from the latter by the additional presence of circular lips 51, 52 projecting inside the skirt 35.
  • Each lip 51, 52 is housed in a notch or peripheral groove 53, 54 of corresponding shape formed at the end of the sleeve 31.
  • the seals 41, 42 are housed in the end parts 36 ", 37" of the skirt 35.
  • the materials constituting the elements of the connector 30 may be identical to those of the corresponding elements of the connector 10 described above.
  • the connector is crimped on each end of the cable.
  • the crimping generates components of axial forces which promote elongation. This is why a single crimping pass may suffice to obtain the desired differential elongation. It is therefore not necessary to have a shrinking zone as long as that which must be provided to allow several crimping passes.
  • the metal sleeve 31 can be relatively short. As an indication, for the same cable section, the length of the sleeve 31 can be 50% to 60% less than that of the sleeve 11 of FIG. 2.
  • asperities or internal toothing such as 33 a (FIG. 5) are formed in the housings 32, 33.
  • the lips 51, 52 escape from the grooves 53, 54 in the direction of the ends of the sleeve.
  • the crimping finished (fig. 6) the coming of the lips 51, 52 in abutment against the end faces of the sleeve prevents the return of these lips in their initial position and contributes to guaranteeing the differential elongation necessary for the compression of the seals 41, 42, elongation which results in clearances 49 between the ends of the sleeve 31 and the flanges 38, 39.
  • the connector according to the invention is applicable in principle to a wide range of cross-section of cables to be connected, for example from 4 mm 2 to 95 mm 2 .

Landscapes

  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP84402009A 1983-10-14 1984-10-08 Connecteur pour câbles électriques isolés Expired EP0138700B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84402009T ATE29804T1 (de) 1983-10-14 1984-10-08 Verbinder fuer isolierte elektrische kabel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8316410 1983-10-14
FR8316410A FR2553594B1 (fr) 1983-10-14 1983-10-14 Connecteur pour cables electriques isoles

Publications (2)

Publication Number Publication Date
EP0138700A1 EP0138700A1 (fr) 1985-04-24
EP0138700B1 true EP0138700B1 (fr) 1987-09-16

Family

ID=9293167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84402009A Expired EP0138700B1 (fr) 1983-10-14 1984-10-08 Connecteur pour câbles électriques isolés

Country Status (7)

Country Link
EP (1) EP0138700B1 (da)
AT (1) ATE29804T1 (da)
DE (1) DE3466327D1 (da)
DK (1) DK489484D0 (da)
ES (1) ES291606Y (da)
FR (1) FR2553594B1 (da)
PT (1) PT79350B (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028880A1 (de) * 2006-06-21 2007-12-27 Yazaki Europe Ltd., Hemel Hempstead Kabelverbindung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177131B (en) * 1985-01-02 1989-04-12 Polypipe Ltd A drainage gulley
ES2006878A6 (es) * 1988-03-30 1989-05-16 Capelles De La Fuente Rosa Dispositivo de conexion electrica para el enlace de conductores aislados.
ES2114140T3 (es) * 1993-07-30 1998-05-16 Etcon Corp Protector de empalmes de cables.
DE4426790A1 (de) * 1994-07-28 1996-02-08 Pfisterer Elektrotech Karl Preßhülse
GB2328087A (en) * 1997-06-26 1999-02-10 B & H Ltd Connection for high voltage
JP2002216864A (ja) * 2001-01-19 2002-08-02 Yazaki Corp 電線の接続構造及び接続方法
CN104701802A (zh) * 2014-05-25 2015-06-10 安徽工程大学 用于电缆接头的压接环
EP3062407B1 (fr) * 2015-02-27 2019-06-26 Upeca Manchon de raccord entre câbles conducteurs, procédé de fabrication et procédé de mise en oeuvre d'un tel manchon.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036147A (en) * 1959-08-21 1962-05-22 Fargo Mfg Co Inc Connector
NL136222C (da) * 1963-03-21
US3356987A (en) * 1966-08-10 1967-12-05 Amp Inc Insulation support and wire guide for an electrical connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028880A1 (de) * 2006-06-21 2007-12-27 Yazaki Europe Ltd., Hemel Hempstead Kabelverbindung
US7367853B2 (en) 2006-06-21 2008-05-06 Yazaki Europe Ltd. Cable connector

Also Published As

Publication number Publication date
ATE29804T1 (de) 1987-10-15
FR2553594B1 (fr) 1986-02-21
DK489484D0 (da) 1984-10-12
DE3466327D1 (en) 1987-10-22
ES291606U (es) 1986-05-01
ES291606Y (es) 1987-01-16
PT79350B (fr) 1986-07-22
FR2553594A1 (fr) 1985-04-19
PT79350A (fr) 1984-11-01
EP0138700A1 (fr) 1985-04-24

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