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WO2007121774A1 - Connecteur électrique pour raccorder au moins deux conducteurs électriques - Google Patents

Connecteur électrique pour raccorder au moins deux conducteurs électriques Download PDF

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Publication number
WO2007121774A1
WO2007121774A1 PCT/EP2006/005311 EP2006005311W WO2007121774A1 WO 2007121774 A1 WO2007121774 A1 WO 2007121774A1 EP 2006005311 W EP2006005311 W EP 2006005311W WO 2007121774 A1 WO2007121774 A1 WO 2007121774A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
screw
parts
shear
electrical connector
Prior art date
Application number
PCT/EP2006/005311
Other languages
English (en)
Inventor
Eric Jegat
Xavier Allaire
Original Assignee
Saae Malico Connectors International En Abrege 'sm-Ci'
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 Saae Malico Connectors International En Abrege 'sm-Ci' filed Critical Saae Malico Connectors International En Abrege 'sm-Ci'
Priority to PCT/EP2006/005311 priority Critical patent/WO2007121774A1/fr
Publication of WO2007121774A1 publication Critical patent/WO2007121774A1/fr

Links

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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw
    • 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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical

Definitions

  • Electrical connector for connecting at least two electrical conductors
  • the present invention relates to an electrical connector of the type comprising: - a first connector part and a second connector part movable one toward the other to connect conductors accommodated between the first and second parts;
  • An object of the invention is to provide an electrical connector having tightening control means that is simple and can be obtained at low cost.
  • the invention proposes an electrical connector of the abovementioned type, characterized in that the tightening control means comprise releasable rotational locking means adapted to rotationally lock one of the screw and the nut with regard of one of the first and second parts about the axis of the screw and nut assembly and to release said rotational locking means upon reaching said predetermined tightening torque.
  • FIG. 1 is a diagrammatic exploded perspective view of an electrical conductor according to the invention.
  • FIG. 1 is a lateral elevation view of the connector of Figure 1 ;
  • FIGS. 3 - 7 are lateral cross-section views of electrical connectors according to alternative embodiments of the invention.
  • the electrical connector 2 shown on Figures 1 and 2 comprises an upper part 4 and a lower part 6 movable one relative to the other, and a screw and nut assembly 8 for driving the parts 4 and 6 toward each other along a clamping axis Z.
  • the assembly 8 comprises a screw 10 and a nut 12.
  • the screw 10 has a driving head 14 for engagement with a driving tool, and a threaded shank 16 for engagement with the nut 12.
  • Each of parts 4 and 6 has an electrically insulating body respectively 18 and 20, and a pair of electrically conductive contacts 22 disposed on a front face 24 confronting the other body 18, 20.
  • Each face 24 has a rectangular general shape and is substantially perpendicular to axis Z.
  • Each face 24 has two parallel spaced apart grooves 26 extending between opposed edges 28, 30 (Figure 1) of said face 24 along a direction A.
  • Each groove 26 of a face 24 and a confronting one of the grooves 26 of the other face 24 define between them a channel for accommodating a conductor 32, 34 ( Figure 2) between the parts 4 and 6.
  • Each face 24 has a pair of housings 36 ( Figure 1 ), each housing 36 being adapted to accommodate one of the contacts 22.
  • Each contact 22 has two end portions 38, preferably provided with prongs, connected by a central portion 40, each of the end portions 38 protruding in one of the grooves 26 of the face 24 accommodating said contact 22.
  • Each of bodies 18 and 20 is provided with a through bore respectively 42 and 44 extending along axis Z for accommodating the shank 16.
  • the bore 42 opens on a rear face 46 of body 18 opposed to body 20 into a recess 48 of body 18 adapted to accommodate the nut 12 along axis Z.
  • the recess 48 has a lateral wall 50 adapted for rotational engagement about axis Z with the nut 12, whereby the nut 12 received into the recess 48 is in rotational engagement with the body 18.
  • the screw 10 is inserted through the bores 42 and 44, such that the driving head 14 is located on the side of body 20 opposite to body 18 and an end portion 52 of the shank 16 opposed to the driving head 16 protrudes out of the bore 42 opposite to body 20.
  • a washer 54 is optionally interposed between the driving head 14 and the body 20.
  • the nut 12 is screwed on the end portion 52.
  • two conductors 32, 34 to be connected one with the other are introduced laterally in the accommodating channels defined between parts 4 and 6.
  • the nut 12 is engaged in the recess 48 to abut a bottom 56 of said recess 48, whereby the nut 12 is in rotational engagement, with the body 18 about the axis Z of the screw 10, i.e. is rotationally locked in the boby.
  • the driving head 14 is rotated about axis Z until it abuts the body 20.
  • the driving head 14 is further rotated to drive the bodies 18 and 20 toward each other until the end portions 28 of the contacts 22 contact the conductors 32, 34.
  • Each contact 22 connects the two conductors 32, 34.
  • the prongs are advantageous to penetrate optional electrically insulating sheaths of the conductors 32, 34.
  • the contact 22 are optionally covered with electrically insulating cleats 57 ( Figure 1) for ensuring watertight contact and electrical isolation with the conductor 32, 34.
  • the body 18 and the recess 48 are designed such that the lateral wall 50 is deformed upon reaching a predetermined tightening torque, whereby, after deformation, the rotational engagement about axis Z between the nut 12 and the body 18 is released. Further rotation of the driving head 14 does not increase the tightening of the clamping assembly 8. The operator is informed that the predetermined tightening torque has been reached.
  • the recess 48 thus forms releasable rotational locking means between the nut 12 and the body 18 enabling to control the tightening of the assembly 8 to avoid tightening the assembly 8 above the predetermined torque.
  • the recess 48 can be obtained easily and at low cost, for example during molding operations of the body 18 made of plastic material.
  • the predetermined tightening torque depends namely on the hardness of the material of the body 18, the shape and diameter of the lateral wall 50, the shape and diameter of the nut 12, and the height h of the recess 46.
  • the maximum torque is about 3,4 N.m.
  • the predetermined torque increases as the height h increases, as long as the height h is inferior to the height H of the nut 12.
  • the predetermined torque increases as the hardness of the material of body 18 increases.
  • the predetermined torque is preferably inferior to 10 N.m.
  • the bore 44 is preferably conical to enable tilting of parts 4 and 6 on relative to the other, for example in case the conductors 32, 34 are of different diameters.
  • the embodiment shown on Figure 3 differs from the embodiment of Figures 1 and 2 in that the nut 12 is accommodated in a recess 58 of a coupling member 60 which is single-piece with the body 18, and connected to the body 18 by a weakened shear portion 62 of lower thickness adapted to shear at the predetermined tightening torque.
  • the nut 12 is in rotational engagement with the body 18 via the coupling member 60.
  • the screw 10 is rotated until shearing of the shear portion 62, whereby the rotational engagement of the nut 12 and the body 18 is released.
  • the coupling member 60 and the shear portion 62 are easily obtained, e.g. during molding operations of the body 18 made of plastic material.
  • Figures 1 and 2 in that the nut 12 is single-piece with the body 18 and is connected to the body 18 by a shear portion 63 of reduced thickness adapted to shear at the predetermined torque.
  • the nut 12 and the shear portion 63 are easily obtained, e.g. during molding operations of the body 18 made of plastic material.
  • the embodiment of Figure 7 differs from the embodiment of Figure 4 in that the nut 12 has a main internally threaded portion 64 adapted to be screwed on the shank 18 and an additional tubular driving portion 66 connected to the threaded portion 64 by a shear section 68 of reduced thickness adapted to shear at a second predetermined torque inferior to the first predetermined torque transmittable between the body 18 and the driving head 14 received in the recess 48.
  • the operator rotates the portion 66, whereby the shear portion 68 will shear upon reaching the second predetermined torque, thus informing the operator of reaching said second tightening torque.
  • the operator rotates the portion 66 to be informed of reaching the first predetermined torque.
  • the releasable rotational locking means between the screw 10 and the body 18 form additional tightening control means obtained easily and at low cost for enhancing the tightening control capabilities of the connector 2.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention vise un type de connecteur comprenant : une première et une deuxième parties de connecteurs (4, 6) pouvant se déplacer l'une vers l'autre afin de raccorder des conducteurs (32, 34) hébergés entre la première et la deuxième parties (4, 6) ; un ensemble vis/écrou (10, 12) pour entraîner la première et deuxième parties (4, 6) l'une vers l'autre ; et un moyen de contrôle de serrage (48 ; 60 ; 68) pour éviter de serrer l'ensemble vis/écrou (10, 12) au-delà d'un couple de serrage prédéterminé. Dans un aspect de la présente invention, le moyen de contrôle de serrage comprend un moyen de blocage rotatif (48 ; 60 ; 68) qui peut être relâché et qui est conçu pour assurer un blocage rotatif de ladite vis (10) et/ou dudit écrou (12) par rapport à ladite première ou deuxième partie (4, 6) sur l'axe (Z) de l'ensemble vis/écrou (10, 12) et pour relâcher ledit moyen de blocage rotatif lorsque ledit couple de serrage prédéterminé est atteint.
PCT/EP2006/005311 2006-04-26 2006-04-26 Connecteur électrique pour raccorder au moins deux conducteurs électriques WO2007121774A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/005311 WO2007121774A1 (fr) 2006-04-26 2006-04-26 Connecteur électrique pour raccorder au moins deux conducteurs électriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/005311 WO2007121774A1 (fr) 2006-04-26 2006-04-26 Connecteur électrique pour raccorder au moins deux conducteurs électriques

Publications (1)

Publication Number Publication Date
WO2007121774A1 true WO2007121774A1 (fr) 2007-11-01

Family

ID=37680562

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/005311 WO2007121774A1 (fr) 2006-04-26 2006-04-26 Connecteur électrique pour raccorder au moins deux conducteurs électriques

Country Status (1)

Country Link
WO (1) WO2007121774A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20120180A1 (it) * 2012-04-04 2013-10-05 3I En S R L Giunto di derivazione per cavi interrati
US11193522B2 (en) 2016-11-30 2021-12-07 3M Innovative Properties Company Shear bolt

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207833A1 (fr) * 1985-06-19 1987-01-07 Automobiles Peugeot Bouton fileté à limiteur de couple
FR2601516A2 (fr) * 1984-06-15 1988-01-15 Sicame Sa Connecteur de derivation isole pour cables electriques
EP0592342A1 (fr) * 1992-10-09 1994-04-13 Societe Industrielle De Materiel Electrique Simel Connecteur de sécurité pour dispositifs de branchement électrique à dérivations multiples
EP1513226A1 (fr) * 2003-09-03 2005-03-09 Pfisterer Kontaktsysteme GmbH & Co. KG Dispositif de raccordement électrique d'au moins deux conducteurs principaux isolés d'un câble d'alimentation électrique, en particulier borne de dérivation pour cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2601516A2 (fr) * 1984-06-15 1988-01-15 Sicame Sa Connecteur de derivation isole pour cables electriques
EP0207833A1 (fr) * 1985-06-19 1987-01-07 Automobiles Peugeot Bouton fileté à limiteur de couple
EP0592342A1 (fr) * 1992-10-09 1994-04-13 Societe Industrielle De Materiel Electrique Simel Connecteur de sécurité pour dispositifs de branchement électrique à dérivations multiples
EP1513226A1 (fr) * 2003-09-03 2005-03-09 Pfisterer Kontaktsysteme GmbH & Co. KG Dispositif de raccordement électrique d'au moins deux conducteurs principaux isolés d'un câble d'alimentation électrique, en particulier borne de dérivation pour cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20120180A1 (it) * 2012-04-04 2013-10-05 3I En S R L Giunto di derivazione per cavi interrati
US11193522B2 (en) 2016-11-30 2021-12-07 3M Innovative Properties Company Shear bolt

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