EP0308845A1 - Elektrische Drahtabzweigungsklemme ohne vorheriges Isolationsabziehen - Google Patents

Elektrische Drahtabzweigungsklemme ohne vorheriges Isolationsabziehen Download PDF

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Publication number
EP0308845A1
EP0308845A1 EP88115310A EP88115310A EP0308845A1 EP 0308845 A1 EP0308845 A1 EP 0308845A1 EP 88115310 A EP88115310 A EP 88115310A EP 88115310 A EP88115310 A EP 88115310A EP 0308845 A1 EP0308845 A1 EP 0308845A1
Authority
EP
European Patent Office
Prior art keywords
wire
tubular
connection terminal
electrical connection
tubular end
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.)
Granted
Application number
EP88115310A
Other languages
English (en)
French (fr)
Other versions
EP0308845B1 (de
Inventor
Jean-Paul Heng
André Marmonier
Etienne Briguet
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.)
ABB France SAS
Original Assignee
Cegelec SA
Entrelec SAS
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 Cegelec SA, Entrelec SAS filed Critical Cegelec SA
Publication of EP0308845A1 publication Critical patent/EP0308845A1/de
Application granted granted Critical
Publication of EP0308845B1 publication Critical patent/EP0308845B1/de
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
    • H01R4/24—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
    • H01R4/2406—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation having needles or pins

Definitions

  • the invention relates to electrical connection terminals for power transmission wires, of the type with a multi-stranded central conductor sheathed in insulation, not involving stripping of the wires.
  • terminals comprising a tubular body, one externally threaded end of which has a blind transverse slot, the bottom of which forms a cradle arranged to receive superimposed electrical wires, through or not.
  • a hollow plug fitted internally with a central cylindrical pusher, is screwed onto the threaded end of the tubular body.
  • the pusher makes it possible to press and therefore electrically interconnect wires, bare or stripped, stacked in the slot between the bottom of the cradle and itself.
  • the electrical connection of the usual wires, the core of which is covered with an insulator formed by one or more layers, involves the removal of these layers from the zone of wire which is to be housed in the terminal.
  • the removal of the insulating layers must be carried out with care so as not to cause deterioration of the conductive core, in particular when this core is composed of multiple strands; it is inconvenient to carry out when the connection is to be carried out in diversion on a wire which one does not want to break up.
  • the exposure of the core of a wire for its connection in a terminal has the further disadvantage of increasing the risk of inadvertent pa contact of this wire with an appliance or a person, in particular in the event of removal from the terminal wire as a result of untimely loosening of the terminal.
  • the present invention therefore proposes an electrical connection terminal, for energy transport wires each consisting of a multi-strand conductor under insulation.
  • This terminal comprises a rigid body provided with at least one tubular end, threaded or tapped, crossed transversely and at least partially by a wire passage opening, this opening has a shape elongated parallel to the longitudinal axis of said tubular end and a width corresponding to the maximum diameter of a wire to be connected.
  • the terminal also includes a plug carrying a central pusher, this plug is screwed at the end of said tubular end which it then closes; the central pusher sinks into the tubular end as it is screwed.
  • the terminal also comprises at least one conductive pin with perforating end points respectively projecting from a common wall through the bottoms of the wire passage openings of two tubular ends to allow interconnection.
  • this wire pin respectively immobilized each against the common bottom wall in a tubular end where the wire in question enters and where this wire is immobilized by a plug whose central pusher comes, at the end of screwing, in the vicinity of a piercing point with which this pusher is aligned, said central pusher ensuring the insertion of the wire on said perforating tip by lateral pressure and until penetration of this perforating tip in contact with the strands of the central conductor of the wire, after perforation of the insulation.
  • connection terminal presented in FIG. 1 is intended to interconnect two electrical energy transport wires 1, of the multi-strand conductor type 2 under insulator 3, either at the end, either bypass, with or without interruption.
  • It comprises a rigid body 4, possibly made of metal but preferably molded from an insulating material, such as a polyamide.
  • This terminal body 4 has at least two threaded or tapped tubular ends, here aligned in the axis of the body which is itself tubular in appearance. It is also possible to provide tubular ends obliquely disposed relative to one another or parallel mounted on the same support.
  • the terminal body 4 has an annular allowance 5 in its central zone, this allowance allows the immobilization of the body in a complementary hole of a support wall which is not shown, by wedging this wall between the allowance and a nut, not shown, screwed onto the thread of one of the tubular ends.
  • a plug 6 is screwed at the end of each tubular end of the body 4.
  • the plugs 6 are intended to each trap a wire in the terminal body 4, the tubular ends of which are each provided with a wire passage opening 7 of elongated shape, oriented in the longitudinal axis of the tubular end, in this case along the axis of the tubular body 4.
  • the wire passage openings 7 of the tubular ends are here separated by a common bottom wall 8 through which is housed an at least partially conductive pin 9 which projects by a wire perforation point in each passage opening and which is for example fixed by force fitting or by overmolding.
  • the pin 9 possibly multi-branch, is bent and protrudes out of a common wall, through the bottom of the wire passage opening of each of the tubular ends concerned, such arrangements which are easy to conceive are not shown here.
  • the wire passage openings which open in the side wall of the tubular ends are possibly blind, in the proposed embodiment they are diametrical and pass right through the tubular ends at the end of which the more they open, each delimiting a slot allowing the insertion of a through wire, either transversely through the open end of the slot, or radially over the height of the slot.
  • each passage opening and therefore here of each slot is a function of the maximum diameter of the wire to be connected that this slot incurs to immobilize.
  • the tubular ends are hollow and the maximum admissible diameter for a wire 1 in a slot is fixed by the two identical notches 10- here referenced at their two edges on Figure 4- which limit this slot.
  • These notches 10 are formed symmetrically with respect to a median longitudinal plane of the body and diametrically opposite through the wall of each tubular end.
  • the pin 9 is here rectilinear, axially disposed and immobilized in the body 4 and the height of projection of a pin piercing tip 9, above the common bottom wall 8 in one of the wire passage openings - either here in one of the slots- is chosen to ensure a radial passage of the tip through the insulator 3 of a wire 1 and between the strands of the central conductor 2 of this wire.
  • the height of this projection is preferably limited so as to avoid a complete diametrical crossing of the wire 1 by the piercing tip and an exit of the latter out of this wire after crossing.
  • a plug 6 on a tubular end is carried out by screwing, the plug being either externally threaded to fit into the thread of a tubular end according to a solution not shown here, or internally threaded to come screw on the thread 11 made externally on each tubular end as shown in Figures 1 to 4.
  • Each plug 6 comprises a central pusher 12 penetrating into the tubular end where it is screwed so as to approach the perforation point housed in this end, as and when it is screwed and up to a distance corresponding to the thickness of the insulation 3 of the wire 1 whose connection is provided in this tubular end.
  • the central pusher 12 is here hollow and composed of a cylindrical base ending in a frustoconical part intended to come to bear laterally, by an annular bearing of diameter smaller than the base cylinder, on a wire in the connection position.
  • connection of a wire 1, passing through is carried out by positioning the wire through the slot of a tubular end after the corresponding plug 6 has been unscrewed, or partially to allow the introduction of the wire between the tip of perforation and the plug, if the stroke of the latter allows it, or completely the wire coming to be inserted through the slot in the slot once the plug is removed.
  • the tubular ends are hollow and two longitudinal ribs 13 are provided for guiding and wedging the wire, per tubular end.
  • the two ribs 13 of a tubular end are coplanar and arranged symmetrically with respect to the median plane, already mentioned above in connection with the notches 10, to which these ribs are parallel.
  • the guiding of a wire to be connected is ensured by the obliquity of the ribs which tend in a first part to conduct this wire towards the center of the tubular element above the tip.
  • the ribs 13 of a tubular end are parallel to each other and surround the perforation point which contains this tubular end, they are then separated by a distance corresponding to the diameter of the wire to be connected so as to center this wire on the tip, during connection, and to participate in its immobilization.
  • connection terminal also makes it possible to connect to a wire, the diameter of which is defined by the slot width of a tubular end, another wire of smaller diameter by means of a sheath 14 coming to be inserted in a tubular end around a pin perforation point 9, between the bottom wall which carries this pin 9 and the plug 6 which closes the tubular end in question.
  • the sheath 14 has external shapes complementary to the shapes of the elements mentioned above between which they are housed.
  • This sheath 14 here comprises a body 15 of roughly cylindrical appearance intended to be inserted inside a tubular end through the open end of the latter.
  • the body 15 is laterally provided with two longitudinal grooves 16 complementary to the ribs 13 of a tubular end -figure 2, 4 and 5-. These grooves make it possible to immobilize the body 15 in rotation in a tubular end and guide it in translation.
  • the body 15 is made of molded insulating material, it is axially provided with a circular orifice 17 intended to allow the penetration of a pin piercing tip 3 into a conduit 18 transversely formed at the bottom of body 15, near this orifice 17.
  • the transverse conduit 18, possibly through but here shown blind, is intended to ensure the maintenance of a wire; it is arranged so as to open facing a notch 10 between the edges of the latter which allows the passage of the wire to this conduit.
  • the end of the body 15 which is opposite the circular orifice 17 is here extended by an externally overhanging annular element 19, intended to be inserted between a plug 6 and the tubular end where this plug is screwed so as to limit the insertion of the sheath 14 into the tubular end and to immobili ser this sheath in translation, when the plug 6 is fully screwed.
  • the maximum insertion of the sleeve 14 into a tubular end is preferably chosen so that the perforation point housed in this tubular end projects into the transverse cavity 18 of the sleeve over a height allowing it to pass through the insulation 3 on one side of the wire and the strands of the central conductor 2 without emerging from the other side of the wire.
  • the body 15 also includes an arrangement allowing the sheath 14 to be hooked to a plug 6 at the level of the central pusher 12 of this plug.
  • This attachment arrangement comprises an axial cavity 20 formed in the body 15 so as to open at the center of the annular element 19 and to be able to receive the central pusher 12, it has for this purpose a structure whose profile is complementary that of the pusher which allows it to transmit to the body 15 the pressure exerted by this pusher when the cap is screwed on.
  • a central stud 21 formed at the bottom of the axial cavity 20 makes it possible to subject the sheath in translation to the plug 6 when the latter is withdrawn.
  • the central stud 21 snaps into a complementary housing 22 opening at the end of the central pusher 12 of the plug.
  • connection of a wire 1 of smaller diameter to another wire 1 using a connection terminal is preferably carried out by first connecting the wire of larger diameter, on the side where the spindle is fitted into the common bottom wall 8 in the case of a spindle 9 forced into it.
  • the wire of smaller diameter is then introduced into the transverse conduit 18 of a sheath 14 subject to a plug 6.
  • the screwing of the plug 6 on a tubular terminal end lowers the sheath, in this tubular end, around the tip perforating housed in this end, it causes this point to penetrate transversely inside the wire where it comes into contact with the strands of the central conductor to ensure electrical continuity between wires.
  • connection terminal considered by implementing two sleeves provided for wires corresponding to the two wires considered.
  • annular allowance 23 formed on the common bottom wall 8 around the pin 9 on the other hand and on the other side of this bottom wall. This annular allowance is in fact pressed against the insulator 3 of a wire around the spindle, when this wire pressed into the bottom of the slot by a plug 6.
  • a sleeve 14 When a sleeve 14 is used, provision is made to surround the spindle 9 with a first seal 24 which is placed, between the bottom wall 8 and body 15 of the sleeve, in an external circular positioning groove 25. provided for this seal on the spindle.
  • a second seal 26 is also provided near the mouth of the transverse conduit 18, in an inner circular groove 27 of the body 15, so as to come and surround the wire introduced into this conduit.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP88115310A 1987-09-22 1988-09-19 Elektrische Drahtabzweigungsklemme ohne vorheriges Isolationsabziehen Expired - Lifetime EP0308845B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8713069 1987-09-22
FR8713069A FR2620871B1 (fr) 1987-09-22 1987-09-22 Borne de raccordement electrique de fils sans denudage prealable

Publications (2)

Publication Number Publication Date
EP0308845A1 true EP0308845A1 (de) 1989-03-29
EP0308845B1 EP0308845B1 (de) 1994-02-16

Family

ID=9355102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88115310A Expired - Lifetime EP0308845B1 (de) 1987-09-22 1988-09-19 Elektrische Drahtabzweigungsklemme ohne vorheriges Isolationsabziehen

Country Status (7)

Country Link
US (1) US4878855A (de)
EP (1) EP0308845B1 (de)
JP (1) JP2710640B2 (de)
BR (1) BR8804786A (de)
CA (1) CA1288487C (de)
DE (1) DE3887804T2 (de)
FR (1) FR2620871B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2040650A2 (es) * 1992-03-20 1993-10-16 Amp Espanola Conectador perforador de aislamiento.
EP2685561A1 (de) * 2012-07-10 2014-01-15 TECHNO S.r.l. Abzweigungsverbinder mit Schneidklemmkontaktelement

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4978314A (en) * 1988-11-24 1990-12-18 Yazaki Corporation Waterproof press-connecting connector
JP2531374Y2 (ja) * 1991-03-29 1997-04-02 大阪瓦斯株式会社 導管用電気接続装置
JPH0536759U (ja) * 1991-10-22 1993-05-18 勉 広瀬 電線接続装置
FR2750802B1 (fr) * 1996-07-02 1998-09-18 Pouyet Sa Procede et dispositif d'interconnexion rapide de deux cables electriques
ES1040251Y (es) * 1998-05-20 1999-07-16 Vicente Arche Hermoso Jorge Conector rapido de cables electricos aislados por perforacion del aislante.
US6165004A (en) * 1998-05-26 2000-12-26 Robinson; Philip A. Power line connector/tap splice apparatus
US6568952B1 (en) * 2000-08-02 2003-05-27 Swenco Products, Inc. T-tap connector
ATE261616T1 (de) * 2000-09-05 2004-03-15 Woertz Ag Elektrisches verbindungselement
DE20114781U1 (de) * 2001-09-06 2001-12-06 Aspoech Systems Fahrzeugelek K Kabelverzweiger
US6830491B1 (en) * 2001-10-09 2004-12-14 Swenco Products, Inc. Weathertight electrical connector
GB2409353A (en) * 2003-12-20 2005-06-22 Deutsch Ltd A re-useable insulation piercing connector
JP5681919B2 (ja) * 2012-12-12 2015-03-11 株式会社ビートソニック 車両用ドアロック制御装置
EP2999054B1 (de) * 2014-09-22 2017-07-19 Tyco Electronics Simel S.A.S. Klemmschraube für eine Drahtverbindungsanordnung und Drahtverbindungsanordnung
US10446953B1 (en) 2018-06-07 2019-10-15 RabyConnectInc. Electrical connector
US11177585B2 (en) * 2019-03-15 2021-11-16 Panduit Corp. Insulation piercing electrical tap connectors
CN115799849A (zh) * 2021-09-10 2023-03-14 厦门广泓工贸有限公司 一种电缆连接器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB612213A (en) * 1946-05-18 1948-11-10 Lucas Ltd Joseph Improvements relating to electric cable couplings
US3848955A (en) * 1973-08-09 1974-11-19 Westinghouse Electric Corp Electrical connector for tapping a concentric electrical cable

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB691802A (en) * 1950-11-21 1953-05-20 Communications Patents Ltd Improved electric coupling devices
US2758280A (en) * 1952-05-29 1956-08-07 Rca Corp Electrical connector
US3154363A (en) * 1961-05-15 1964-10-27 Herbert C Will Electrical connector
US3372361A (en) * 1965-06-15 1968-03-05 Fargo Mfg Co Inc Cable connector
US3877773A (en) * 1973-10-29 1975-04-15 Amp Inc Double-ended conductor-in-slot connecting device
US3902780A (en) * 1973-12-10 1975-09-02 Amp Inc Electrical connecting device for insulated wires
US4734061A (en) * 1986-12-31 1988-03-29 Bell Communications Research, Inc. Telecommunications terminal block

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB612213A (en) * 1946-05-18 1948-11-10 Lucas Ltd Joseph Improvements relating to electric cable couplings
US3848955A (en) * 1973-08-09 1974-11-19 Westinghouse Electric Corp Electrical connector for tapping a concentric electrical cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2040650A2 (es) * 1992-03-20 1993-10-16 Amp Espanola Conectador perforador de aislamiento.
EP2685561A1 (de) * 2012-07-10 2014-01-15 TECHNO S.r.l. Abzweigungsverbinder mit Schneidklemmkontaktelement

Also Published As

Publication number Publication date
EP0308845B1 (de) 1994-02-16
FR2620871B1 (fr) 1989-12-01
US4878855A (en) 1989-11-07
DE3887804T2 (de) 1994-05-19
JP2710640B2 (ja) 1998-02-10
JPH01112675A (ja) 1989-05-01
FR2620871A1 (fr) 1989-03-24
BR8804786A (pt) 1989-04-25
DE3887804D1 (de) 1994-03-24
CA1288487C (fr) 1991-09-03

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