EP0878031B1 - Connecteur de cable de ligne d'alimentation electrique - Google Patents

Connecteur de cable de ligne d'alimentation electrique Download PDF

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Publication number
EP0878031B1
EP0878031B1 EP97900388A EP97900388A EP0878031B1 EP 0878031 B1 EP0878031 B1 EP 0878031B1 EP 97900388 A EP97900388 A EP 97900388A EP 97900388 A EP97900388 A EP 97900388A EP 0878031 B1 EP0878031 B1 EP 0878031B1
Authority
EP
European Patent Office
Prior art keywords
connector
tubular body
teeth
ribs
cavity
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 - Lifetime
Application number
EP97900388A
Other languages
German (de)
English (en)
Other versions
EP0878031A1 (fr
Inventor
Andre Dupont
Dominique Mercuzot
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of EP0878031A1 publication Critical patent/EP0878031A1/fr
Application granted granted Critical
Publication of EP0878031B1 publication Critical patent/EP0878031B1/fr
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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • 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
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact

Definitions

  • the present invention relates to junctions or splices for connecting power line cables, for example medium voltage electric cables incorporating a circular core wire. Such junctions may be used for the permanent connection of cables of overhead or underground networks.
  • this process of assembly involves the use of a hydraulic installation for supplying pressure to the deep stamping crushing tool.
  • Such an installation comprises an electric motor or the like for driving the hydraulic pump.
  • the means of solving the above problem is to provide a junction or splicing connector with shear head bolts as shown in GB 2 174 851 and GB 2 272 586.
  • the bare conducting strands of cables are inserted into channels of these connectors, and clamped therein by a pressure pad that is clamped down on the cable by means of bolts.
  • the bolt heads shear off once the torque limit is achieved, thereby limiting the clamping pressure of the cable. A permanent connection without crushing of the tube is thus provided.
  • a power line splicing connector comprising a tubular body having a cavity extending therethrough in a longitudinal direction for receiving ends of cables therein, the connector further comprising clamping members movable transversely into the cavity for clamping the cable ends against a bottom wall of the tubular body opposed to the clamping members, the bottom wall having a plurality of teeth for piercing through the thickness of an insulation jacket surrounding a cable conductor, for connection thereto.
  • the tubular body is made of an extruded bottom part and a separate top part assembled thereto.
  • splicing connector that is easily adaptable for interconnection with a large variety of different cables, in order to reduce manufacturing and handling costs thereof. It would also be desirable for such splicing connectors to be able to interconnect two different cables in as cost effective a manner as possible.
  • a power line splicing connector comprising a tubular body extending in a longitudinal direction and having a longitudinal cavity extending therethrough for receiving cable ends therein, further comprising clamping means extending transversely to the cavity for clamping and electrical connection of the cable ends to the splicing connector, wherein the connector comprises a plurality of pointed ribs extending longitudinally along a bottom portion of the tube cavity opposed to the clamping means, the ribs extending along substantially the whole length of the body, the teeth having a depth sufficient for piercing through insulation of conductors received therein.
  • the ribs are cut transversely at a certain pitch and depth to increase the contact pressure for piercing through insulation, or for breaking through the oxide layer of bared conducting strands of a conductor.
  • the transverse cuts are made in a screw machining operation that is particularly rapid and cost-effective, whereby the body of the connector is extruded and cut to the desired length.
  • the connector is particularly cost-effective to manufacture and extremely versatile in that a plurality of different conductor sizes and types can be connected thereto.
  • the transverse cuts can be made very deep and with a large pitch in order increase the piercing pressure of the teeth.
  • a very fine pitch and low depth of the transverse cuts provides a contacting surface with many little pyramidal points that dig into the bare strands, thereby breaking through the oxidation layers, increasing the contact surface area, and frictionally holding the conductors in place for an effective electrical connection thereto.
  • the connector with longitudinal ribs of different heights, whereby the longer teeth could either serve as insulation piercing teeth, or to prevent movement of strands of a bare conductor, the shorter teeth serving to improve the connection with bare conductors.
  • a splicing connector 2 comprises a tubular body 4 having a cavity 6 extending longitudinally therethrough for receiving conductor ends therein, and clamping members 8 extending transversely to the cavity 6 for clamping the conductors therein.
  • the clamping members 8 are threaded bolts 10 received in threaded bores 12 extending through the tubular body 4 into the cavity.
  • the bolts 10 have a torque limiting head 14 that can either be integral with the bolt 10 or a separate part fixed thereto and being shearable when excessive torque is applied. In this manner the compression force of the bolt that clamps a cable received in the cavity 6 is precisely delimited.
  • the bolt 10 has a clamp surface 16 with a recess 18 in a central portion thereof for increasing the crushing pressure of the clamping surface against a conducting wire. The latter also ensures that a portion of the cable being clamped enters into the recess 18 enabling secure lateral and longitudinal retention of the cable, to prevent movement thereof.
  • the splicing connector 2 can be further provided with an outer sealing body 20 enclosing the tubular body and having elastomeric cap members 22 at either end that have a funnel shaped entry portion 24 extending longitudinally and aligned with the cavity 6, and having a radial sealing lip 26 that snugly and elastically fits around a cable inserted therethrough for sealing purposes.
  • gel sealant can be provided within the cavity 6 beneath the clamping members 8.
  • the tubular body 4 is in this embodiment an extruded metal part that is cut to the desired lengths, and comprises a plurality of long pointed ribs 28 along a bottom portion 30 of the body opposed to the clamping surfaces 16 of the bolt 10.
  • the ribs 28 are directed radially inwards towards the central axis A of the cavity 6.
  • the ribs 28 have a depth sufficient to pierce through the insulating layer of conventional power line conductors for electrical connection with inner a conducting strands thereof.
  • the ribs 28 are cut transversely by grooves 32 that are made by screw machining in much the same way as machining of a thread for screw connections.
  • the combination of the ribs 28 and grooves 32 form a plurality of teeth 34.
  • the depth of the groove 32 and the width of the groove can be adjusted to make more or less sharp pointed teeth 34 for providing the requisite pressure for piercing through the insulation layer and into the conducting strands of the conductor.
  • one end 3 of the tubular body 4 with teeth that are screw machined differently than the teeth at the other end 5 such that two different conductors can be connected at either end and clamped together by means of the respective clamping members 8',8.
  • the depth of the grooves 32 can also be varied in order to adjust to conductors with different insulation thicknesses, thereby insuring that the correct depths are achieved and avoiding cutting through strands of the conductor unnecessarily.
  • a splicing connector 202 provided with a through cavity 106 and clamping members 108 similar to that described for the previous embodiment, with the connector also being provided with longitudinal ribs 228, 228'.
  • Some of the ribs 228' can be much higher than the other ribs 228.
  • the higher ribs can either serve to provide insulation piercing teeth 228' as shown in Figure 6, or if a bare conductor is positioned therein, the teeth 228' serve to prevent lateral movement of the conducting strands to prevent relaxation of the contact pressure between strands and between the connector when the clamping bolts are tightened thereagainst.
  • the small ribs 228 ensure increased contact pressure and piercing of the oxidation layer of the pair conductor strands.
  • the depth and pitch of the teeth that are provided by transverse cutting of the ribs can also be modified as a function of the conductor size and type for connection thereto.

Landscapes

  • Processing Of Terminals (AREA)
  • Cable Accessories (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulated Conductors (AREA)

Claims (8)

  1. Connecteur d'épissure pour une ligne d'alimentation électrique (2, 102), comprenant un corps tubulaire (4) comportant une cavité (6) le traversant dans une direction longitudinale pour recevoir les extrémités des câbles, le connecteur comprenant en outre des éléments de serrage (8, 8') pouvant se déplacer transversalement dans la cavité (6) pour serrer les extrémités du câble contre une paroi inférieure (30) du corps tubulaire (4) opposée aux éléments de serrage, la paroi inférieure (30) comportant plusieurs nervures pointues (28) s'étendant longitudinalement et dirigées radialement vers une zone centrale autour d'un axe longitudinal (A) de la cavité, le corps tubulaire étant formé de sorte que son profil longitudinal peut être extrudé, les nervures (28) étant découpées transversalement, de sorte à former des dents individuelles (34), les nervures (28) ayant une hauteur supérieure à l'épaisseur des gaines d'isolation entourant les conducteurs à câble conventionnels, caractérisé en ce que le corps tubulaire constitue un élément solidaire et en ce que les dents (34) sont formées par découpage des rainures transversales (32) par décolletage.
  2. Connecteur selon la revendication 1, dans lequel le corps tubulaire a un profil de section ovale avec de longues parois latérales et des parois supérieure et inférieure courtes.
  3. Connecteur selon la revendication 1, dans lequel le corps tubulaire a une forme en prisme.
  4. Connecteur selon l'une quelconque des revendications précédentes, dans lequel les rainures transversales (32) ont un profil en V.
  5. Connecteur selon l'une quelconque des revendications précédentes, dans lequel une ou plusieurs nervures (228') sont plus hautes que les nervures adjacentes (228).
  6. Connecteur selon l'une quelconque des revendications précédentes, dans lequel les rainures (32) ont une profondeur suffisante pour permettre le percement des dents (34) à travers l'épaisseur desdites gaines isolantes.
  7. Connecteur selon l'une quelconque des revendications 1 à 4, dans lequel la profondeur des rainures transversales (32') est inférieure à l'épaisseur desdites gaines isolantes, de sorte que les dents (34) se prêtent à une connexion à des faisceaux de conducteurs nus.
  8. Connecteur selon l'une quelconque des revendications précédentes, dans lequel le corps tubulaire comporte des dents (34) au niveau d'une extrémité (3) correspondante, formées par décolletage d'une manière différente aux dents au niveau de l'autre extrémité correspondante (5), de sorte que deux conducteurs différents peuvent être connectés, un au niveau de chaque extrémité.
EP97900388A 1996-01-30 1997-01-22 Connecteur de cable de ligne d'alimentation electrique Expired - Lifetime EP0878031B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9601323 1996-01-30
FR9601323A FR2744288B1 (fr) 1996-01-30 1996-01-30 Raccord de connexion pour ligne electrique
PCT/IB1997/000042 WO1997028577A1 (fr) 1996-01-30 1997-01-22 Connecteur de cable de ligne d'alimentation electrique

Publications (2)

Publication Number Publication Date
EP0878031A1 EP0878031A1 (fr) 1998-11-18
EP0878031B1 true EP0878031B1 (fr) 2000-06-28

Family

ID=9488810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97900388A Expired - Lifetime EP0878031B1 (fr) 1996-01-30 1997-01-22 Connecteur de cable de ligne d'alimentation electrique

Country Status (7)

Country Link
EP (1) EP0878031B1 (fr)
JP (1) JP2000513481A (fr)
CN (1) CN1094262C (fr)
AU (1) AU724871B2 (fr)
DE (1) DE69702383T2 (fr)
FR (1) FR2744288B1 (fr)
WO (1) WO1997028577A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7090544B2 (en) 2004-08-05 2006-08-15 3M Innovative Properties Company Modular electrical connector and method of using
US7104832B2 (en) 2004-08-05 2006-09-12 3M Innovative Properties Company Modular electrical connector and method of using

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001015276A1 (fr) * 1999-08-24 2001-03-01 Tappat Engineering Pty Limited Connecteur perforateur pour cable electrique
CN1319212C (zh) * 2005-03-19 2007-05-30 齐俊曌 电线接续连接件
CN100424932C (zh) * 2006-01-05 2008-10-08 英业达股份有限公司 多个连接器的叠接结构
CN101958470A (zh) * 2010-07-22 2011-01-26 西安欧卡姆电气有限公司 一种刺穿连接导体及其连接或分接绝缘导线的装置
CN102760978B (zh) * 2011-04-27 2015-04-01 泰科电子(上海)有限公司 电连接装置
FR2992481B1 (fr) * 2012-06-22 2015-05-29 App Mat Elect Const Connecteur de raccordement pour au moins deux cables electriques
CN103682697A (zh) * 2013-04-22 2014-03-26 上海永固电力器材有限公司 螺栓型铝端子
CN104377526A (zh) * 2013-08-14 2015-02-25 江苏嘉盟电力设备有限公司 绝缘穿刺线缆连接装置
DE102014012296A1 (de) * 2014-08-22 2016-02-25 Robert Seidl Vielfachklemme
WO2017138014A1 (fr) * 2016-02-12 2017-08-17 Raychem Rpg Pvt. Ltd. Système de branchement électrique et bloc de distribution utilisant celui-ci
FR3048309B1 (fr) * 2016-02-26 2019-06-14 Michaud Sa Dispositif de raccordement electrique entre un fil et un element conducteur
BE1026172B1 (de) * 2018-04-03 2019-10-30 Phoenix Contact Gmbh & Co Kg Anschlusselement, Anordnung und Energieverteilungssystem
US10446953B1 (en) 2018-06-07 2019-10-15 RabyConnectInc. Electrical connector
FR3083376B1 (fr) * 2018-06-27 2020-09-18 Upeca Terminal de connexion electrique a ensemble de serrage
US11276946B2 (en) * 2019-03-21 2022-03-15 TE Connectivity Services Gmbh Cable connector system and a method of connecting electrical cables
US10886638B1 (en) 2019-08-22 2021-01-05 Milbank Manufacturing Co. Meter box with insulation-piercing wire termination connectors
DE102019122735A1 (de) * 2019-08-23 2021-02-25 Arcus Elektrotechnik Alois Schiffmann Gmbh Vorrichtung zum schneiden der primärisolation einer ader eines starkstromkabels, primärisolationsdurchdringende kontaktklemme mit solch einer vorrichtung sowie verfahren zur herstellung eines zahnbettes einer solchen kontaktklemme
CN111092304B (zh) * 2020-02-14 2021-05-28 埃塞克斯电气(南京)有限公司 一种超导电缆终端

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DE1168518B (de) * 1961-04-17 1964-04-23 Alois Schiffmann Dipl Kfm Druckschraube einer Schraubklemme
GB1465907A (en) * 1973-12-10 1977-03-02 Bicc Ltd Electric connectors
FR2459560A1 (fr) * 1979-06-19 1981-01-09 Alsthom Cgee Bornes de connexion pour conducteur electrique isole
US4269465A (en) * 1979-12-26 1981-05-26 Amp Incorporated Splice connector for aluminum wire
ATE15301T1 (de) * 1981-06-18 1985-09-15 Mars Alcatel Anschlussvorrichtung fuer einen isolierten leiter durch durchdringen der isolation.
FR2566191B1 (fr) * 1984-06-15 1986-11-14 Sicame Sa Connecteur de derivation isole pour cables electriques
FI216U1 (fi) * 1992-04-16 1992-08-12 Sekko Ab Oy Foerlaengningsholk foersedd med momentskruvar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7090544B2 (en) 2004-08-05 2006-08-15 3M Innovative Properties Company Modular electrical connector and method of using
US7104832B2 (en) 2004-08-05 2006-09-12 3M Innovative Properties Company Modular electrical connector and method of using

Also Published As

Publication number Publication date
CN1209909A (zh) 1999-03-03
JP2000513481A (ja) 2000-10-10
CN1094262C (zh) 2002-11-13
FR2744288B1 (fr) 1998-03-06
DE69702383D1 (de) 2000-08-03
EP0878031A1 (fr) 1998-11-18
AU1396197A (en) 1997-08-22
WO1997028577A1 (fr) 1997-08-07
AU724871B2 (en) 2000-10-05
DE69702383T2 (de) 2001-02-15
FR2744288A1 (fr) 1997-08-01

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