EP0896387B1 - Schraubklemme und Anschlussleiste für einen elektrischen Apparat - Google Patents

Schraubklemme und Anschlussleiste für einen elektrischen Apparat Download PDF

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Publication number
EP0896387B1
EP0896387B1 EP98401774A EP98401774A EP0896387B1 EP 0896387 B1 EP0896387 B1 EP 0896387B1 EP 98401774 A EP98401774 A EP 98401774A EP 98401774 A EP98401774 A EP 98401774A EP 0896387 B1 EP0896387 B1 EP 0896387B1
Authority
EP
European Patent Office
Prior art keywords
bracket
casing
screw
terminal block
cable
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
EP98401774A
Other languages
English (en)
French (fr)
Other versions
EP0896387A1 (de
Inventor
Emmanuel Ing. Latour
Alain Moreaux
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries 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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0896387A1 publication Critical patent/EP0896387A1/de
Application granted granted Critical
Publication of EP0896387B1 publication Critical patent/EP0896387B1/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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • 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

Definitions

  • the present invention relates to a screw terminal having a crossed cage by a connection tab specific to the device, the screw being associated with a clamp to tighten a cable between it and the connection lug. She also relates to a terminal block with insulating body associated with an electrical appliance at low voltage and comprising in insulating housings several such screw terminals.
  • Screw terminals of this type are well known. They allow you to connect a cable to the device with which they are associated without first having strip the end of the cable. It is desirable to make such terminals in a simple manner, with nevertheless a very good quality of tightening, and, in some cases, using connection devices capable of receive one or two non-stripped cables in each terminal.
  • the object of the invention is to facilitate the production and mounting of terminals and terminal blocks meeting these requirements.
  • the wings of the stirrup have at their free end and towards inside the U a retaining heel for the cable; the stirrup soul understands two ribs whose height is substantially equal to or greater than the thickness of the insulating sheath of the cable to be tightened, these ribs being located each near a wing of the contact piece.
  • a second stirrup facing the first is provided at the bottom of the cage bracket, as well as two contact pieces in the cage and between the brackets with insulation piercing claws mounted back to back and applicable against opposite sides of the connection tab.
  • connection terminal block with associated insulating body.
  • a low-voltage electrical appliance comprising in housings insulators several screw terminals described, the insulating body of the device authorizing the sliding of the cage and being provided with passages for the connection ranges.
  • the terminal block is removable and has near the passage of each connection pad a pre-positioning relief for a contact part.
  • Figure 1 shows in perspective from below an electrical device provided with the terminal block according to the invention, with partial cut-out at the level one of the terminals.
  • Figure 2 similarly shows an exploded part of the terminal block.
  • Figure 3 is a bottom view of the device, without its terminal block.
  • Figure 4 is a bottom view with partial section of the terminal block body.
  • FIGS. 5 and 6 are elevation views of a terminal according to the invention, respectively in the loose state and in the tight state.
  • FIGS. 7 and 8 show the terminal in section along plane B of FIG. 5, respectively in the loose and tight states.
  • Figure 9 shows a screw-clamp assembly specific to the terminal.
  • Figure 10 shows in perspective a claw contact part specific to the thick headed.
  • the device shown in the figures is a multipolar electrical device with low voltage which can have a connection function or a function of interruption, for example in the latter case of the contactor type, contactor-circuit breaker or circuit breaker.
  • the device includes a case 10 of generally parallelepiped shape having a front face 11, a rear face 12 for attachment to a support not indicated, side faces 13.14 and upper and lower faces 15.16. It is provided projecting from the underside 16 of the tabs or flat plugs 17 which form the ranges of connection corresponding to the different poles.
  • the terms forward, backward, etc. are of course chosen in relation to the usual mounting direction of the device on its support.
  • a terminal block 20 is fixed against the underside 16 of the device by means of usual means not indicated.
  • the terminal block has an insulating body with of a front face 21, of a rear face 22, of lateral sides 23, 24 and of upper and lower faces 25.26; it consists of a base 27 and a cover 28 attached permanently or removable by snap-fastening or any other means on the base.
  • Terminal block 20 includes three slots 29 separated by partitions for as many clamping terminals 30 cables.
  • the indicated terminals are double, that is to say intended to receive two conductors, but they could also be simple.
  • Each terminal is of the screw type 34 cooperating with a tapped hole provided in a mobile and guided cage 35 in the housing 29.
  • the terminal is designed to clamp two cables in separate locations and includes this effect two stirrups 41.42 in general U shape and two grip pieces contact 51.52 with claws also in a general U shape.
  • the cage 35 comprises a front wall 35a provided with the tapped hole 35b, a bottom 35c, side walls 35d, 35e which connect the front wall to the bottom and openings upper and lower 35f, 35g passage for cables and lug 17 to Connect.
  • the screw 34 is secured in translation with the stirrup 41, by example by a pin, without causing it to rotate (see Figure 9).
  • Each stirrup 41,42 comprises a core 43 and two wings 44,45.
  • Soul 43 of the stirrup 41 is applicable against the end of the screw 34 and its wings 44, 45 are guided along the side walls 35d, 35e of the cage.
  • Stirrup soul 43 42 is applied against the bottom 35c of the cage or merged with this bottom (see Figures 5 to 8) and its two wings 44,45 are provided projecting from at the walls 35d, 35e of the cage.
  • the stirrup wings 44,45 have at their free end and towards the inside of the U a heel 46 for retaining the cable at the loosening.
  • the core 43 of the stirrups carries inwardly of the U two ribs 47 whose height is substantially equal to or greater than the thickness of the insulating sheath of cable C to be tightened, these ribs being each located proximity, or even directly in contact, of a wing 54.55 of the contact part 51.52.
  • the contact parts 51, 52 are identical to each other; they understand each (see FIG. 10) a core 53 applied against the connection tab 17 associated and two wings 54,55 ending in claws 56. While the wings 44, 45 of the stirrups 41 are adjacent to the side walls 35d, 35e of the cage, the wings 54.55 of the contact parts 51.52 are located towards the openings 35f, 35g of the cage; contact parts are placed back to back against the two large opposite faces 17a, 17b of the tab 17 and the stirrups 41.42 penetrate during tightening into the contact parts 51.52 with guiding and nesting their end faces in U 48 against the faces internal wings 54.55.
  • the length of the core 53 of the contact piece is substantially equal to or slightly less than the width of the side walls 35d, 35th from the cage.
  • the upper face 25 of the terminal block has three passages 25a for the tabs connection 17 and, on either side of these passages, reliefs or prepositioning projections 25b each having to cooperate with a recess 57 formed in a wing 54 or 55 of the contact part.
  • the height of the passage is provided slightly higher than that of the relief to allow the contact part to pass without difficulty from its prepositioning state in its application position against the tab 17.
  • the terminal block described is assembled and operates as follows.
  • the cages 35 are arranged in their respective housings 29 of the base 27, with the stirrups 41,42 and the contact parts 51,52; these are prepositioned by cooperation of one of their recesses 57 with a relief respective 25b of the terminal block, so that it can be applied against the faces 17a, 17b of the legs 17.
  • the cover 28 is fixed to the base 27 to close the terminal block and this can be removably attached to the housing 10 of the device, whose legs 17 penetrate the passages 25a to introduce themselves between parts 51.52.
  • the cable is introduced into the opening 32, so that it is placed between the wings 44, 45 of the stirrup 42, then the screw 34 is turned; this one does descend the stirrup 41 until it stops on the part 51 or the face 17a of the connection lug 17, then by reaction causes the cage to rise towards orifice 35b 35 secured to the bracket 42.
  • the cable is pressed against the contact piece 52 and the claws 56 release the insulating sheath of the cable, which ensures the connection desired between the cable core, the part 52 and the tab 17 against which it is applied; the connection is completed by pressing the cable against the ribs 47; these crush or shear the sheath and can come into contact with the cable core.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Claims (6)

  1. Klemme mit einer Schraube (34) und einem Gehäuse (35), von einer Verbindungslasche (17) durchzogen und mit einer Gewindebohrung ausgestattet, um mit der Schraube übereinzustimmen, welche auf einem Bügel (41, 42) angelegt ist, um ein Kabel gegen diesen und die Verbindungslasche zu klemmen, während im Gehäuse (35) ein Kontaktstück (51) angebracht ist, wobei dieses Stück einen Kern (53) hat, der gegen die Verbindungslasche angelegt ist.
       dadurch gekennzeichnet, daß:
    das Kontaktstück (51, 52) in U-Form ist, mit Zangen zum Durchbrechen der Isolierung (56) und Flügel hat (54, 55) die in den Zangen (56) auslaufen, welche sich in der Nähe der seitlichen Öffnungen (35f, 35g) des Gehäuses befinden.
    der Bügel (41) ein Teil in U-Form ist, das einen Kern (43) enthält, gegen welchen die Schraube (34) und die Flügel (44, 45) aufliegen, die leicht gegen die Seitenwände (35d, 35e) des Gehäuses (35) geführt werden,
    der Bügel (41) sich beim Anziehen in das Kontaktstück (51, 52) einfügt.
  2. Klemme nach Patentanspruch 1, dadurch gekennzeichnet, daß:
    die Flügel (44, 45) des Bügels (41, 42) an ihrem freien Ende und gegen die Innenseite des U einen Halteansatz (46) für das Kabel haben.
  3. Klemme nach Patentanspruch 1, dadurch gekennzeichnet, daß:
    der Kern (43) des Bügels (41, 42) zwei Rillen (47) enthält, deren Höhe in etwa gleich oder größer ist als die Dicke des Isolierschlauchs des festzuklemmenden Kabels, wobei diese Rillen sich jeweils in der Nähe eines Flügels (54, 55) des Kontaktstücks (51, 52) befinden.
  4. Klemme nach Patentanspruch 1, dadurch gekennzeichnet, daß:
    am Gehäuseboden (35) ein zweiter Bügel (42) vorgesehen ist, der dem ersten Bügel gegenüber liegt und im Gehäuse (35) zwischen den Bügeln (41, 42) zwei Kontaktstücke (51, 52) mit Zangen zum Durchbrechen der Isolierung angebracht sind, die Rücken an Rücken montiert sind und gegen die gegenüberliegenden Seiten (17a, 17b) der Verbindungslaschen angelegt werden können.
  5. Anschlussleiste mit Nichtleiter, verbunden mit einem elektrischen Apparat mit Niederspannung, welcher in Isolierkammern mehrere Schraubklemmen gemäß einer der Patentansprüche 1 bis 4 enthält, wobei der Nichtleiter der Anschlussleiste (20) das Gleiten des Gehäuses (35) ermöglicht und mit Durchführungen (25a) für die Verbindungslaschen (17) ausgestattet ist.
  6. Anschlussleiste nach Patentanspruch 5, dadurch gekennzeichnet, daß sie in der Nähe der Durchführung (25a) jeder Verbindungslasche (17) ein Relief zur Vorpositionierung (25b) für ein Kontaktstück (51, 52) enthält.
EP98401774A 1997-08-07 1998-07-13 Schraubklemme und Anschlussleiste für einen elektrischen Apparat Expired - Lifetime EP0896387B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9710251 1997-08-07
FR9710251A FR2767228B1 (fr) 1997-08-07 1997-08-07 Borne a vis et bornier pour appareil electrique

Publications (2)

Publication Number Publication Date
EP0896387A1 EP0896387A1 (de) 1999-02-10
EP0896387B1 true EP0896387B1 (de) 2000-12-27

Family

ID=9510216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401774A Expired - Lifetime EP0896387B1 (de) 1997-08-07 1998-07-13 Schraubklemme und Anschlussleiste für einen elektrischen Apparat

Country Status (3)

Country Link
EP (1) EP0896387B1 (de)
DE (1) DE69800453T2 (de)
FR (1) FR2767228B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8157603B2 (en) 2008-06-30 2012-04-17 Schneider Electric Industries Sas Electrical screw terminal, block comprising one such electrical terminal and electrical apparatus comprising one such terminal block

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2355863B (en) * 1999-10-27 2001-09-12 Philex Plc Electrical earth connector
DE10018352C1 (de) * 2000-04-13 2001-09-27 Siemens Ag Klemme
DE10131975A1 (de) * 2001-07-02 2003-01-30 Siemens Ag Anschlussklemme
DE10236397A1 (de) * 2002-08-08 2004-02-26 Wieland Electric Gmbh Elektrisches Anschlusselement und Vorrichtung, insbesondere Schaltgerät mit einem solchen Anschlusselement
DE10348088B3 (de) * 2003-10-16 2005-01-20 Moeller Gmbh Schaltschütz mit Rahmenklemmen
FR2990570B1 (fr) * 2012-05-11 2014-06-13 App Mat Elect Const Embout de branchement pour cable d'alimentation electrique isole et procede de fabrication de cet embout de branchement
CN104362445A (zh) * 2014-11-26 2015-02-18 永固集团股份有限公司 一种立式接分线夹

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503939A1 (fr) * 1981-04-14 1982-10-15 Alsthom Cgee Borne de connexion pour conducteur electrique isole
FR2635615B1 (fr) * 1988-08-22 1990-11-09 Sicame Sa Accessoire de branchement pour cable a relier a un quelconque circuit
JPH0631652Y2 (ja) * 1990-04-06 1994-08-22 矢崎総業株式会社 圧接端子
FI96726C (fi) * 1993-12-27 1996-08-12 Sekko Ab Oy Kiskoliitin maakaapelin liittämiseksi jonovarokkeeseen
FR2740265B1 (fr) * 1995-10-18 1997-11-14 Schneider Electric Sa Bloc de raccordement de conducteurs electriques a un appareil electrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8157603B2 (en) 2008-06-30 2012-04-17 Schneider Electric Industries Sas Electrical screw terminal, block comprising one such electrical terminal and electrical apparatus comprising one such terminal block

Also Published As

Publication number Publication date
FR2767228B1 (fr) 2004-07-16
DE69800453D1 (de) 2001-02-01
DE69800453T2 (de) 2001-04-19
FR2767228A1 (fr) 1999-02-12
EP0896387A1 (de) 1999-02-10

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