EP3759766B1 - Dispositif de protection contre les surtensions, comprenant au moins un appareil de protection contre les surtensions, composé d'un socle et d'une pièce mâle pouvant être raccordée au socle - Google Patents

Dispositif de protection contre les surtensions, comprenant au moins un appareil de protection contre les surtensions, composé d'un socle et d'une pièce mâle pouvant être raccordée au socle Download PDF

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Publication number
EP3759766B1
EP3759766B1 EP19702436.7A EP19702436A EP3759766B1 EP 3759766 B1 EP3759766 B1 EP 3759766B1 EP 19702436 A EP19702436 A EP 19702436A EP 3759766 B1 EP3759766 B1 EP 3759766B1
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EP
European Patent Office
Prior art keywords
overvoltage protection
lever
protection device
insulation displacement
plug
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.)
Active
Application number
EP19702436.7A
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German (de)
English (en)
Other versions
EP3759766A1 (fr
Inventor
Edmund ZÄUNER
Stefan DIETWEGER
Sascha Ludewig
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.)
Dehn SE and Co KG
Original Assignee
Dehn and Soehne GmbH and Co KG
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Publication date
Application filed by Dehn and Soehne GmbH and Co KG filed Critical Dehn and Soehne GmbH and Co KG
Publication of EP3759766A1 publication Critical patent/EP3759766A1/fr
Application granted granted Critical
Publication of EP3759766B1 publication Critical patent/EP3759766B1/fr
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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
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
    • 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
    • H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
    • H01R9/2641—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component with built-in overvoltage protection

Definitions

  • the invention is based on an overvoltage protection device with at least one overvoltage protection device, consisting of a base part and a plug-in part which can be connected to the base part and which accommodates means for overvoltage protection, with insulated electrical conductors being able to be inserted in the base part, which are contacted by means of vampire or insulation displacement terminals, penetrating the conductor insulation as well as contact surfaces located in the base part, which correspond to mating contact surfaces on the bottom of the plug-in part according to claim 1.
  • an overvoltage protection device with at least one overvoltage protection device, consisting of a substantially U-shaped base part and a plug-in part that can be fixed in the base part, is already known.
  • the plug-in part accommodates means for overvoltage protection, with insulated electrical conductors being contacted on or in the plug-in part by means of vampire or insulation displacement terminals, and openings or openings formed in the base part for accommodating the conductors.
  • a locking plate or several locking bars can be used in the base part.
  • the detent plate or the detent webs can be part of the base part, ie they can be delivered and preassembled together with it.
  • the latching plate or the latching webs are in such a position that it allows the corresponding conductors to be inserted through the openings in the base part or, in the case of so-called V-wiring, to be pushed through.
  • the latching plate and/or the latching webs have contact surfaces oriented towards the plug-in part and cutting surfaces directed towards the conductors, in such a way that when they are pressed in or engaged, the cutting surfaces penetrate the conductor insulation and contact the respective conductors, so that between the respective contact surfaces and the respective conductor, an electrical connection can be established.
  • the actual plug-in part is then inserted into the pre-construction consisting of the base part with the latching plate and the conductors that have already been contacted there and is electrically connected to the contact surfaces of the plug-in part via mating contact surfaces located on its base.
  • connection system for realizing branches of continuous electrical conductors.
  • the connection system has a base plate and swiveling connection discs that are T-shaped when viewed from above.
  • the base plate and the connecting disks are connected to one another by means of rounded hook sections which engage in one another and which form a type of sliding pivot bearing.
  • the connection disks each have a fork contact, which is used for electrical contacting of the respective associated electrical conductor, which is guided in receptacles in the base plate below the respective connection disk.
  • the WO 99/04455 A1 discloses a connection device for telecommunications systems with a plurality of terminals, each terminal having two insulation displacement connectors of different sizes for connecting connection cables.
  • the terminals are pivotably mounted, with the insulation displacement terminals engaging in a recess in the terminal into which the respective connecting cable is inserted as soon as the terminal is pivoted for contacting.
  • the DE 37 08 782 A1 describes a device for contacting and shortening insulated cable cores, the cores to be contacted being guided in parallel grooves.
  • the device has two metallic contact cutters and cutting knives, a swiveling cover and a device to prevent the separation of an inserted wire, so that the wires to be contacted can be shortened in separate work steps.
  • insulation displacement connectors as quick connection technology in the area of telecommunications networks for connecting cable cores without soldering, screwing and stripping is not possible, taking into account the currents to be carried in the area of overvoltage protection, but at least not without supporting tools. However, this no longer gives the desired advantage of tool-free and quick assembly.
  • an expanded overvoltage protection device with at least one overvoltage protection device, consisting of a base part and a plug-in part which can be connected to the base part and which accommodates means for overvoltage protection, which enables the overvoltage protection device to be installed quickly and without tools, in particular for DIN rail applications.
  • the insulation displacement connection achieved ensures a surge current-resistant, reliable and permanent contact.
  • the starting point is an overvoltage protection device which has at least one overvoltage protection device.
  • the corresponding overvoltage protection device consists of at least one base part and at least one plug-in part that can be connected to the base part.
  • the plug-in part then accommodates the actual means for overvoltage protection, for example spark gaps, varistors or the like.
  • Insulated electrical conductors can be introduced into the base part, which are contacted by means of vampire or insulation displacement terminals, penetrating the conductor insulation.
  • Overvoltage protection devices consisting of a socket or base part, which is suitable, for example, for DIN rail mounting and which accommodates the actual overvoltage protection devices in the form of plug-in parts, are part of the prior art. Reference is made here to the current overvoltage protection devices from DEHN + S ⁇ HNE GmbH + Co. KG, Neu mod/Opf., at www.dehn.de.
  • the wiring should be carried out more simply and with reliable contact, even with so-called V-wiring.
  • the electrical connection to be created should ensure a high level of operational reliability and be reliably available over a long period of time.
  • the base part is not designed in one piece as a prefabricated structural unit made up of a base plate and a locking plate.
  • the base part is realized in several parts and consists of a base part and a lever part.
  • the bottom part is designed as a wire plate and has several parallel grooves for inserting and receiving the insulated electrical conductors.
  • Hook-shaped extensions are provided on one side of the base part, running parallel to the grooves.
  • the lever part At one end of the lever, the lever part has a stub axle which engages in the hook-shaped extensions.
  • the lever part has at least one insulation displacement connector on its underside facing the wire plate and close to the axle stubs.
  • the insulation displacement connector leads to a plug-in contact located in the lever part, which is accessible from the top of the lever part for receiving the plug-in part and for contacting the same.
  • a pair of hook-shaped extensions is provided for each groove in the core plate, with each groove being assigned a lever part.
  • the groove depth essentially corresponds to the diameter of the conductor with insulation.
  • the respective insulation displacement connector cuts through the insulation of the respectively inserted conductor and displaces the insulation, so that there is extensive peripheral contact with the conductor.
  • a window-like opening can be formed in the side surface of the base part for recognizing the position of the conductor and the insulation displacement connector.
  • a cutout with a clamping lug for top-hat rail mounting is provided on the underside of the base part.
  • the lever part can be hung with its stub axles in the hook-shaped extensions of the base part.
  • the conductor can therefore be inserted into the respective groove present there in the base part without any problems and then the lever part can be hooked in using the hook-shaped extensions.
  • the respective insulation displacement terminals are preferably designed as a stamped and bent part and are fastened in a longitudinal recess on the underside of the lever part. This attachment can be done by latching, screwing or riveting. In the area of the opening in the lever part for the respective plug contact of the plug part, the stamped and bent part then has a complementary recess which surrounds the plug contact and ensures the necessary surge current-resistant contact.
  • the insulation displacement terminals In their cutting area, the insulation displacement terminals have projections or lugs reaching in the direction of the side walls of the groove, which engage in guide recesses within the base part when the closing movement of the lever part is carried out in the direction of the base part. This prevents the insulation displacement terminals from performing an evasive movement and possibly resulting in an inadequate electrical connection.
  • the underside of the lever part can have a longitudinally oriented setback section which is complementary to a longitudinal recess in the base part which runs parallel to the respective groove.
  • the base part according to the invention is first snapped onto a top-hat rail, for example in the area of a house connection box.
  • the cores of the existing cable are inserted into the slots provided for L1, L2, L3, N or PE.
  • the corresponding lever part with integrated insulation displacement connector is attached to each wire.
  • the lever part locks with the base part.
  • the plug-in part or a module made up of several plug-in parts is put on.
  • the corresponding electrical system can then be put into operation.
  • the overvoltage protection device according to the invention according to the figures consists of a multi-part base part.
  • a base part 1 which is designed as a wire plate.
  • hook-shaped extensions 4 are provided.
  • the bottom part 1 is provided with a recess on its underside in order to enable it to be snapped onto a top-hat rail 5 .
  • Lever parts 6 are also present, with axle stubs 7 being formed on one end of the lever.
  • the lever part 6 has at least one insulation displacement connector 8 on its underside facing the wire plate or the base part 1 and close to or close to the axle stubs 7.
  • the relevant insulation displacement connector 8 leads to a plug-in contact 9 which is located in the lever part 6 and which is accessible from the top of the lever part 6 for receiving the plug-in part 10 .
  • the plug contact 9 can be part of a one-piece stamped and bent part that has the insulation displacement connector 8 at one end and the mentioned plug contact 9 at the other end.
  • a pair of hook-shaped extensions 4 is provided for each groove 2 in the core plate 1, with each groove also being assigned a lever part 6, as can be seen from the sequence of FIG Figures 1b to 1d is understandable.
  • the depth of the respective groove 2 is realized essentially corresponding to the diameter of the conductor 3 .
  • the conductor is thus well embedded in the slot.
  • the insulation displacement connector 8 has two cutting sections on the underside with an adjoining longitudinal slot.
  • the cutting sections have a cutting edge or a chamfer in order to cut through and displace the insulation layer on the conductor 3 when the insulation displacement connector penetrates, so that the desired electrical contact between the insulation displacement connector and the conductive wire can be produced over the largest possible area and circumference and the surge current carrying capacity according to the requirements can be met.
  • a guide recess 11 can be present in each of the side surfaces of the bottom part 1 .
  • Projections 12 of the relevant insulation displacement connector 8 which projections reach in the direction of the side walls of the groove, engage in these respective guide recesses 11.
  • the underside of the lever part 6 has a recess section 13 running in the longitudinal direction, which is complementary to a longitudinal recess 14 in the base part 1, so that the lever can be guided when closing and upon completion of the closing movement (see arrow illustration after figure 5 ) a form fit between lever part 6 and base part 1 is given.
  • the respective insulation displacement connector 8 can be designed as a stamped and bent part and is fastened to the underside of the lever part 6 in a recess or longitudinal recess provided there.
  • the attachment can be made by means of screws or rivets 15.
  • the solution according to the invention leads to a safe and reliable insulation displacement connection and has the advantages of a screwless clamping such as vibration resistance.
  • the contact is made by insulation displacement connectors on both sides, starting from a position in the illustration figure 2 .
  • the lever mechanism means that no major forces are required to cut through the insulation and make contact with the wire, so that the solution according to the invention can also be used for larger cross sections.
  • the cutting edge of the insulation displacement connector is designed in such a way that the insulation is first cut and displaced by a chamfer and then there is a large-area contact point free of insulating material.

Landscapes

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

Claims (9)

  1. Dispositif de protection contre les surtensions, comprenant au moins un appareil de protection contre les surtensions qui est composé d'une pièce d'embase et d'une pièce enfichable (10) qui est apte à être reliée à la pièce d'embase et reçoit des moyens de protection contre les surtensions,
    des conducteurs électriques isolés (3) étant aptes à être insérés dans la pièce d'embase et étant contactés au moyen de bornes vampire ou guillotine (8) par pénétration de l'isolation du conducteur, et
    des surfaces de contact qui se trouvent sur la pièce d'embase et correspondent à des surfaces de contact antagonistes au fond de la pièce enfichable,
    la pièce d'embase étant réalisée en plusieurs parties composées d'une pièce de fond (1) et d'une pièce de levier (6),
    la pièce de fond (1) étant réalisée sous forme de plaque à âmes et présentant une pluralité de rainures (2) qui s'étendent de manière parallèle pour l'insertion et la réception des conducteurs électriques isolés (3), et
    des saillies (4) en forme de crochets et parallèles aux rainures (2) étant prévues d'un côté sur la pièce de fond (1),
    la pièce de levier (6) présentant en outre à une extrémité de levier des bouts d'axe latéraux (7) qui s'engage dans les saillies (4) en forme de crochets,
    la pièce de levier (6) présentant sur sa face inférieure tournée vers la plaque à âmes (1) et près des bouts d'axe (7) au moins une borne guillotine (8),
    la borne guillotine (8) menant à un contact à fiche ou un contact à fiche antagoniste (9) que se trouve dans la pièce de levier (6) et qui est accessible depuis la face supérieure de la pièce de levier (6) pour la réception de la pièce enfichable (10), et
    les bornes guillotine (8) présentant dans la zone coupante des saillies (12) qui s'étendent en direction de parois de rainure latérales de la rainure (2) et qui, lors de la réalisation du mouvement de fermeture de la pièce de levier (6) en direction de la pièce de fond (1), s'engagent dans des évidements de guidage (11) à l'intérieur de la pièce de fond (1).
  2. Dispositif de protection contre les surtensions selon la revendication 1, caractérisé en ce qu'une paire de saillies (7) en forme de crochet est prévue pour chaque rainure (2) dans la plaque à âmes (1), et une pièce de levier (6) est associée à chaque rainure (2).
  3. Dispositif de protection contre les surtensions selon la revendication 1 ou 2, caractérisé en ce que la profondeur de la rainure correspond sensiblement au diamètre du conducteur (3) avec l'isolation.
  4. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, caractérisé en ce que lors de l'actionnement de la pièce de levier (6), la borne guillotine (8) respective sectionne et déplace l'isolation du conducteur (3) inséré respectif et contacte l'âme du conducteur sur une grande surface du côté périphérique.
  5. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, caractérisé en ce qu'une ouverture en forme de fenêtre est réalisée dans la face latérale de la pièce de fond (1) pour la détection de la position du conducteur (3) et de la borne guillotine (8).
  6. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, caractérisé en ce qu'un évidement présentant des languettes de serrage (16) est prévu sur la face inférieure de la pièce de fond (1) pour le montage sur un profilé chapeau (5).
  7. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, caractérisé en ce que la pièce de levier (6) est apte à être accrochée par ses bouts d'axe (7) dans les saillies (4) en forme de crochet de la pièce de fond (1).
  8. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, caractérisé en ce que la borne guillotine (8) respective est réalisée sous forme de pièce pliée découpée et est fixée dans un creux longitudinal du côté inférieur de la pièce de levier (1).
  9. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, caractérisé en ce que la face inférieure de la pièce de levier (6) présente un tronçon en retrait (13) qui est complémentaire à un creux longitudinal (14) dans la pièce de fond (1) qui est parallèle à la rainure respective (2), de sorte que le levier est guidé lors de la fermeture et une liaison par coopération de formes entre la pièce de levier (6) et la pièce de fond (1) est réalisée à la fin du mouvement de fermeture.
EP19702436.7A 2018-02-27 2019-01-30 Dispositif de protection contre les surtensions, comprenant au moins un appareil de protection contre les surtensions, composé d'un socle et d'une pièce mâle pouvant être raccordée au socle Active EP3759766B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018104469 2018-02-27
DE102018107604.5A DE102018107604A1 (de) 2018-02-27 2018-03-29 Überspannungsschutzeinrichtung mit mindestens einem Überspannungsschutzgerät, bestehend aus einem Sockelteil und einem mit dem Sockelteil verbindbaren Steckteil
PCT/EP2019/052224 WO2019166171A1 (fr) 2018-02-27 2019-01-30 Dispositif de protection contre les surtensions, comprenant au moins un appareil de protection contre les surtensions, composé d'un socle et d'une pièce mâle pouvant être raccordée au socle

Publications (2)

Publication Number Publication Date
EP3759766A1 EP3759766A1 (fr) 2021-01-06
EP3759766B1 true EP3759766B1 (fr) 2022-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19702436.7A Active EP3759766B1 (fr) 2018-02-27 2019-01-30 Dispositif de protection contre les surtensions, comprenant au moins un appareil de protection contre les surtensions, composé d'un socle et d'une pièce mâle pouvant être raccordée au socle

Country Status (5)

Country Link
US (1) US11088473B2 (fr)
EP (1) EP3759766B1 (fr)
CN (1) CN111758187B (fr)
DE (1) DE102018107604A1 (fr)
WO (1) WO2019166171A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11881669B2 (en) * 2021-05-28 2024-01-23 Electro Terminal Gmbh & Co Kg Terminal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708782C2 (fr) * 1987-03-18 1990-10-25 Walter Rose Gmbh & Co Kg, 5800 Hagen, De

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Publication number Priority date Publication date Assignee Title
AU7928398A (en) * 1997-07-18 1999-02-10 Whitaker Corporation, The Distribution or cross-connection assembly
DE102004054203A1 (de) * 2004-11-10 2006-05-11 Erni Elektroapparate Gmbh Schneidklemm-Steckkontaktleiste für elektrische Steckverbinder
CA2620543C (fr) * 2005-08-29 2011-04-19 Phoenix Contact Gmbh & Co. Kg Dispositif de serrage permettant de connecter un conducteur sans denudage
DE202005014719U1 (de) 2005-09-17 2007-02-01 Weidmüller Interface GmbH & Co. KG Anschluß-System zur Realisierung von Abzweigungen an durchgehenden Leitern
DE102006028959A1 (de) * 2006-06-23 2008-01-31 Dehn + Söhne Gmbh + Co. Kg Steckbarer Überspannungsableiter mit einem oder mehreren Überspannungsschutzelementen
DE202009003561U1 (de) * 2009-03-12 2009-05-20 Obo Bettermann Gmbh & Co. Kg Überspannungsschutzgerät
DE102012103789A1 (de) * 2012-04-30 2013-10-31 Sma Solar Technology Ag Kabelclip für Modulelektronik
DE102014007352A1 (de) 2014-03-13 2015-09-17 Dehn + Söhne Gmbh + Co. Kg Überspannungsschutzeinrichtung mit mindestens einem Überspannungsschutzgerät

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3708782C2 (fr) * 1987-03-18 1990-10-25 Walter Rose Gmbh & Co Kg, 5800 Hagen, De

Also Published As

Publication number Publication date
DE102018107604A1 (de) 2019-08-29
CN111758187B (zh) 2023-09-29
US11088473B2 (en) 2021-08-10
WO2019166171A1 (fr) 2019-09-06
US20210036443A1 (en) 2021-02-04
EP3759766A1 (fr) 2021-01-06
CN111758187A (zh) 2020-10-09

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