EP0891010B1 - Borne de raccordement avec mise à la terre - Google Patents

Borne de raccordement avec mise à la terre Download PDF

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Publication number
EP0891010B1
EP0891010B1 EP98110859A EP98110859A EP0891010B1 EP 0891010 B1 EP0891010 B1 EP 0891010B1 EP 98110859 A EP98110859 A EP 98110859A EP 98110859 A EP98110859 A EP 98110859A EP 0891010 B1 EP0891010 B1 EP 0891010B1
Authority
EP
European Patent Office
Prior art keywords
spring
mounting foot
protective
terminal according
leg
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
EP98110859A
Other languages
German (de)
English (en)
Other versions
EP0891010A2 (fr
EP0891010A3 (fr
Inventor
Christian Süss
Holger Strack
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.)
Wieland Electric GmbH
Original Assignee
Wieland Electric GmbH
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 Wieland Electric GmbH filed Critical Wieland Electric GmbH
Publication of EP0891010A2 publication Critical patent/EP0891010A2/fr
Publication of EP0891010A3 publication Critical patent/EP0891010A3/fr
Application granted granted Critical
Publication of EP0891010B1 publication Critical patent/EP0891010B1/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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2608—Fastening means for mounting on support rail or strip
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4811—Spring details
    • H01R4/4816—Spring details the spring shape preventing insertion of the conductor end when the spring is unbiased
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool

Definitions

  • the invention relates to a protective conductor terminal with a mounting foot their mounting on a mounting rail and with an electrically conductive with the mounting foot connected busbar equipped with a conductor connection.
  • a protective conductor terminal is known from the European patent specification EP 0 554 519 B1 known in which one arranged in an insulating housing and with conductor connections equipped busbar is connected to a mounting foot that for mechanical and electrical connection with a protective conductor busbar serving mounting rail.
  • the busbar and mounting base must be used in turn are electrically connected to each other. For example by welding, soldering or by a positive and non-positive connection, for example by caulking. Should track and Mounting foot to ensure a good electrical and mechanical load Connection can be welded together, so can track and mounting foot are not both made of copper since copper is not can be welded with copper. In this case, a different material pair must be used be avoided.
  • a terminal block is known in the busbar and one-piece contact or mounting foot made of a highly conductive material Material are made so that no artificial transition point with the above disadvantages mentioned.
  • the contact foot is shaped as a clamp, whereby the contact force of this clip by a spring clip overlapping it provided.
  • the Contact force due to elastic deformation of the contact foot designed as a clamp causes. This requires an unsatisfactory constructive compromise between the mechanical stability of the contact foot and its electrical Contacting required elastic deformability.
  • a protective conductor connection terminal is from the German utility model G 86 01 687.3, which is to be regarded as the closest prior art known, in which the mounting foot by means of a compression spring Round wire is fixed to a mounting rail.
  • the disadvantage is that the Compression spring must simultaneously fix both ends of the mounting rails, so that the installation of this protective conductor connection terminal is relatively complicated.
  • the invention is based on the object of specifying a protective conductor terminal, which are particularly easy to assemble and also simple and is inexpensive to manufacture and the disadvantages of the previously published Does not have the prior art.
  • the above task is performed with a protective conductor terminal with the features of claim 1 solved.
  • the protective conductor terminal according to the invention contains a mounting foot for mounting on a mounting rail and an electrically conductive connected to the mounting foot and equipped with a conductor connection Conductor rail, with recesses in the mounting foot for receiving a spring element provided for bracing the mounting foot in the mounting rail are.
  • the formations are through recesses in the side walls of the Assembly foot formed.
  • the spring element consists of a spring plate that between the Side walls is inserted. Only one end of the mounting rail is used the spring plate fixed. This makes it easy to install the spring plate in the Mounting foot possible.
  • the spring element is preferably with side shoulders provided, which protrude into the recesses to fix the spring plate.
  • the spring plate is at its free ends in plan view of its Flat side, each T-shaped.
  • a leg spring is provided, the two legs braced in the mounting foot are.
  • the spring element is non-positive and secure in the Mounting foot fixed.
  • an L-shaped leg spring is provided, which is particularly light can be snapped into corresponding recesses.
  • the long leg of the leg spring arranged in the mounting foot so that it when inserted into a fastening hook in the side wall of the mounting foot Support rail clamped between the support rail and the mounting foot is.
  • the mounting foot and busbar form a one-piece contact element, wherein the one-piece contact element is preferably a stamped and bent part.
  • the one-piece contact element is preferably a stamped and bent part.
  • the cross section corresponds to the bending points of the contact element at the transition from the power rail to a side wall of the mounting base approximately the cross section of the busbar in its free area. This is in the event of a short circuit, an almost constant current density is guaranteed in the contact element.
  • the contact element is preferably made of copper. This makes it special good electrical connection between the conductor rail and the mounting rail guaranteed.
  • the protective conductor terminal comprises a housing that is a base part with a rear wall and with formations for Inclusion of the contact element and a cover that can be placed on the base part comprises the base part on its side opposite the rear wall closes at least in the area of the conductor connection. This will make the base part stiffened.
  • the lid is on the inside in the area of the outer legs of a U-shaped busbar a cheek to support the outer leg against that of the spring leg Apply the force exerted when the terminal spring is actuated.
  • the cover creates a closed receiving space for the connecting conductor clamped to the outer leg by the connecting spring formed so that it is ensured that no strands or wires laterally over the protective conductor terminal can protrude outside.
  • Such a constructive design can also be advantageous in one Feed-through clamps are used whose mounting base is not an electrically conductive one Establishes connection between the mounting rail and the power rail.
  • By eliminating the metallic mounting foot on the one hand and by Stabilization of the outer legs of the busbars between the base part and cover on the other hand is no longer necessary, angled stiffening strips to manufacture the rail in this case, therefore, only a simple metal strip in the full width of the conductor rail required. This is especially for simple Through clamps the necessary material and manufacturing costs for the conductor rail reduced considerably.
  • the protective conductor terminal comprises a base part 1, which is made in one piece an insulating material is produced, for example a plastic injection molded part, and with is provided with a plurality of formations for receiving a contact element 2 are provided.
  • the contact element 2 is a one-piece stamped and bent part, preferably made of copper Cu, and consists of a mounting foot 3 and an essentially U-shaped busbar 4.
  • the busbar 4 is on their outer legs 5 with a conductor connection, in the embodiment a connecting spring 6, in particular a cage tension spring, as for example in a particularly advantageous embodiment from EP 0 303 818 B1 is known.
  • the base part 1 is provided with a rear wall 8, which is also a stop for the contact element 2 inserted into the base part 1.
  • the base part 1 On his from Mounting foot 3 facing away from the narrow side is the base part 1 with two to each other provided at an obtuse angle a extending pads 10, the in each case one through opening 12 for an electrical one not shown in the figure Have connection conductor and a mounting opening 14. Through the is the mounting of the connecting conductors oriented obliquely to one another facilitated.
  • the terminal spring 6 comprises as a spring element a leg spring, one spring leg 19 of which carries the clamping part 18, and whose other spring leg 20 rests on the outer leg 5, which when actuated the clamping part 18 serves as an abutment. Since the connection spring 6 applied clamping forces ensure a secure fixation of the connection conductor are also the forces required to open the clamping part 18 high, so that even on the outer leg serving as an abutment 5 relatively high Bending moments work.
  • a locking lug 22 is molded, which for receiving a corresponding L-shaped shape of a mounting rail, not shown in the figure is provided.
  • the mounting foot 3 comprises two mutually parallel side walls 24, 26 which the side opposite the latch 22 each provided with a hook 28 are. On one of the two side walls 24, 26 there is the latch 22 facing side a serving as a counter bearing for the mounting rail 30 molded.
  • recesses 32 and 34 are provided for receiving a shoulder-like widening 36 one inserted between the side walls 24, 26 of the mounting foot 3 and in him braced spring element 38, an L-shaped in the embodiment Leg spring, serve.
  • a cover 40 closes the base part 1, which is open on a flat side, at least in Area of the two receiving spaces 17 after the 6 with terminal spring and spring element 38 provided contact element 2 is inserted into the base part 1.
  • the cover has tabs 44 each provided with pins 42, which over the pads 10 are pushed so that the pins 42 are arranged in there Engage recesses 46.
  • the cover 40 On the inside of the cover 40 are more in this representation not visible mounting pin arranged in the base part 1 bores arranged on the flat side opposite the rear wall 8 48 are introduced and the cover 40 against displacement or twisting to back up.
  • the cover 40 is made in one piece as a plastic injection molded part, with the lid 40 are colored green or yellow, so that when yellow or green respectively colored base part 1 a green-yellow marking in the area of the connection or Contact insertion openings 12 is formed, which signals that the protective conductor terminal actually the mounting rail serving as a protective conductor busbar contacted.
  • the spring element 38 is an L-shaped leg spring is, the two legs 50 and 52 with their at the free ends, respectively arranged widenings 36 are clamped in the mounting base 3.
  • the long Leg 50 is in its relieved starting position in relation to the arranged from the hook 28 rear grip 54 arranged that the long leg 50th when sliding the mounting foot 3 onto the L-shaped shape of the mounting rail 56 acts essentially as a pure spiral spring, the mounting foot 3 safely fixed to the mounting rail 56 and at the same time for good electrical contact provides.
  • the long leg 50 extends obliquely to the direction of movement Mounting foot 3 when pushed onto the mounting rail 56, so that a light
  • the support rail 56 can be inserted into the rear grip 54 formed by the hook 28 is.
  • the stamped part provided for the production of the contact element 2 is in the shown unbent state.
  • the busbar 4 of the contact element 2 is a substantially rectangular base plate 60 includes.
  • the side edges of this base plate 60 form the transition or Crosspieces 62 and 64 to the two side walls 24, 26 of the mounting foot 3 or to the two outer legs 5 of the busbar 4.
  • These connecting webs 62 and 64 fall with the bending points when finished, i.e. H. curved Contact element 2 together.
  • the connecting webs 62 are in the middle each provided with a recess 65 around one in the middle of the base plate 60 existing threaded hole 66 when bending the side walls 24, 26 the mounting foot 3 not to deform, so that to each side wall 24, 26 of Mounting foot two connecting webs 62 arise.
  • These two connecting bars 62 together have approximately the same cross-section as everyone the connecting webs 64 and the free area, i.e. the outer leg 5, the Busbar 4.
  • one of the outer legs (5) flows into it high short-circuit current I, as indicated by arrows. This short circuit current I essentially flows over the opposite connecting webs 62 on the two side walls 24, 26 of the mounting foot.
  • the lid 40 is shown in the viewing direction on its inside, so that the mounting pins 70 provided for insertion into the bores 48 (FIG. 2) are recognizable. Furthermore, on the inside of the cover 40 is in the area of the receiving space provided for receiving the stripped connecting conductor part 17 a cheek 72 is provided which, when the cover 40 is mounted Abutment for the outer leg 5 is used when the abutting on the outer leg 5 Spring legs 20 a transverse to when actuating the clamping part 18 Outer leg exerts 5 directed force.
  • FIG. 5 it can be clearly seen how that consists of an L-shaped leg spring Spring element 38 between the side walls 24, 26 of the mounting foot 3 is arranged.
  • the T-shaped extensions 36 at the free ends of the Legs 50 and 52 are in recesses 32 and 34 of the side walls 24,26 inserted so that the spring element 38 captive in the mounting foot braced.
  • the long leg 50 is the rear grip 54 formed by the hook 28 upstream, so that an insertion of the longitudinal edge of the mounting rail 56 (Fig.2) only against the spring action of the long leg, which acts as a pure spiral spring 50 is possible. Since it for the secure fixation of the mounting foot 3 on the Support rail 56 (FIG. 2) only depends on the spring action of the long leg 50, can in an alternative embodiment of the invention, the spring element 38 basically only from a single-leg, straight spiral spring be constructed.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Cable Accessories (AREA)
  • Organic Insulating Materials (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (12)

  1. Borne de mise à la terre, comportant un pied de montage (3) permettant son montage sur un rail porteur (56) et une barre conductrice (4) reliée avec conduction électrique au pied de montage (3) et pourvue d'au moins une connexion de conducteur (6), le pied de montage (3) contenant des reliefs pour recevoir un élément ressort (38) pour tendre le pied de montage (3) dans le rail porteur (56), caractérisée en ce que les reliefs sont formés par des évidements (32, 34) dans deux parois latérales (24, 26) parallèles l'une à l'autre du pied de montage (3), et en ce que l'élément ressort (38) est constitué par une tôle à ressort qui est insérée entre les parois latérales (24, 26), la tôle à ressort fixant le pied de montage (3) dans la position d'utilisation uniquement sur une extrémité du rail porteur (56).
  2. Borne de mise à terre selon la revendication 1, dans laquelle l'élément ressort (38) est pourvu d'épaulements latéraux (36) qui font saillie dans les évidements (32, 34) et qui fixent la tôle à ressort.
  3. Borne de mise à terre selon la revendication 2, dans laquelle la tôle à ressort est réalisée à ses extrémités libres respectives en forme de T en vue de dessus sur son côté plat.
  4. Borne de mise à terre selon l'une des revendications 1, 2 ou 3, dans laquelle il est prévu à titre d'élément ressort (38) un ressort à branches dont les deux branches (50, 52) sont serrées dans le pied de montage (3).
  5. Borne de mise à terre selon la revendication 4, dans laquelle il est prévu un ressort à branches en forme de L.
  6. Borne de mise à terre selon la revendication 5, dans laquelle la branche longue (50) du ressort à branches est agencée dans le pied de montage (3) de telle sorte que dans la position d'utilisation, elle est serrée de manière élastique entre le rail porteur (56) et le pied de montage, dans le cas d'un rail porteur (56) susceptible d'être introduit dans un crochet (28) dans la paroi latérale du pied de montage (3).
  7. Borne de mise à terre selon l'une des revendications précédentes, dans laquelle le pied de montage (3) et la barre conductrice (4) forment un élément de contact (2) d'un seul tenant.
  8. Borne de mise à terre selon la revendication 7, dans laquelle l'élément de contact (2) d'un seul tenant est une pièce pliée estampée.
  9. Borne de mise à terre selon l'une ou l'autre des revendications 7 et 8, dans laquelle la section transversale des points de pliage (62, 64) de l'élément de contact (2) à la transition de la barre conductrice (4) vers une paroi latérale (24, 26) du pied de montage (3) correspond approximativement à la section transversale de la barre conductrice (4) dans sa région libre.
  10. Borne de mise à terre selon l'une des revendications 7 à 9, dans laquelle l'élément de contact (2) est en cuivre Cu.
  11. Borne de mise à terre selon l'une des revendications précédentes, comportant un boítier qui comprend une partie de base (1) avec une paroi postérieure (8) et des reliefs pour recevoir l'élément de contact (2) ainsi qu'un couvercle (40) susceptible d'être posé sur la partie de base (1), qui ferme la partie de base (1) sur son côté opposé à la paroi postérieure (8) au moins dans la région de la connexion conductrice.
  12. Borne de mise à terre selon la revendication 11, dans laquelle il est prévu une barre conductrice (4) en forme de U sur la branche extérieure (5) de laquelle est agencé un ressort de borne (6) qui repose avec une branche de ressort (20) sur la branche extérieure (5), le couvercle (40) étant pourvu sur sa face intérieure dans la région des branches extérieures (5), d'une joue (72) respective pour soutenir la branche extérieure (5) à l'encontre de la force exercée par la branche de ressort (20) lors de l'actionnement du ressort de borne (6).
EP98110859A 1997-07-09 1998-06-13 Borne de raccordement avec mise à la terre Expired - Lifetime EP0891010B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729327A DE19729327C1 (de) 1997-07-09 1997-07-09 Schutzleiterklemme
DE19729327 1997-07-09

Publications (3)

Publication Number Publication Date
EP0891010A2 EP0891010A2 (fr) 1999-01-13
EP0891010A3 EP0891010A3 (fr) 2001-08-16
EP0891010B1 true EP0891010B1 (fr) 2003-03-26

Family

ID=7835136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110859A Expired - Lifetime EP0891010B1 (fr) 1997-07-09 1998-06-13 Borne de raccordement avec mise à la terre

Country Status (6)

Country Link
US (1) US6183311B1 (fr)
EP (1) EP0891010B1 (fr)
AT (1) ATE235749T1 (fr)
DE (2) DE19729327C1 (fr)
DK (1) DK0891010T3 (fr)
ES (1) ES2195229T3 (fr)

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IT1397530B1 (it) 2010-01-20 2013-01-16 Morsettitalia Spa Elemento conduttore in forma con mezzi integrati per il contatto/trattenuta con dispositivi elettrici e morsetto comprendente tale elemento conduttore.
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FR2659118B1 (fr) * 1990-03-02 1992-05-07 Entrelec Sa Dispositif de fixation d'un bloc de jonction sur un profile support symetrique.
DE4203184C3 (de) * 1992-02-05 1996-11-21 Weidmueller Interface Schutzleiterklemme
US5694288A (en) * 1995-02-01 1997-12-02 Square D Company Mounting arrangement for mounting a circuit breaker to a rail
DE19631436C1 (de) * 1996-08-03 1997-10-09 Weidmueller Interface Schutzleiteranschluß insbesondere für Reihenklemmen

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Publication number Publication date
EP0891010A2 (fr) 1999-01-13
DE19729327C1 (de) 1998-10-29
ATE235749T1 (de) 2003-04-15
US6183311B1 (en) 2001-02-06
ES2195229T3 (es) 2003-12-01
DE59807618D1 (de) 2003-04-30
EP0891010A3 (fr) 2001-08-16
DK0891010T3 (da) 2003-06-23

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