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EP4066269B1 - Dispositif de protection contre les surtensions - Google Patents

Dispositif de protection contre les surtensions Download PDF

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Publication number
EP4066269B1
EP4066269B1 EP21708646.1A EP21708646A EP4066269B1 EP 4066269 B1 EP4066269 B1 EP 4066269B1 EP 21708646 A EP21708646 A EP 21708646A EP 4066269 B1 EP4066269 B1 EP 4066269B1
Authority
EP
European Patent Office
Prior art keywords
surge protection
current path
switching contact
plug
protection apparatus
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
EP21708646.1A
Other languages
German (de)
English (en)
Other versions
EP4066269A1 (fr
EP4066269C0 (fr
Inventor
Florian GÄCK
Julius SCHRAFL
Markus GÖTZ
Hans Herold
Thomas Böhm
Benjamin MOOSBURGER
Thomas Sellerer
Dominik Wölfl
Michael Hess
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
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 Dehn and Soehne GmbH and Co KG filed Critical Dehn and Soehne GmbH and Co KG
Publication of EP4066269A1 publication Critical patent/EP4066269A1/fr
Application granted granted Critical
Publication of EP4066269C0 publication Critical patent/EP4066269C0/fr
Publication of EP4066269B1 publication Critical patent/EP4066269B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/0213—Combined operation of electric switch and variable impedance, e.g. resistor, capacitor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/04—Housings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors
    • H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • 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
    • H01R9/2491—Terminal blocks structurally associated with plugs or sockets
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/06—Mounting arrangements for a plurality of overvoltage arresters

Definitions

  • the present invention relates to a surge protection device, in particular for information technology and/or communications technology systems.
  • the DE 10 2011 115 722 A1 discloses a surge protection device for protecting low-voltage electrical installations, consisting of a lower device part and at least one upper device part that can be plugged onto the lower device part, the lower device part having input and output terminals for electrical conductors, at least two line paths, which each connect input and output terminals assigned to one another and with has contact elements connected to the input and output terminals, in particular designed as plug sockets, with longitudinal impedances being arranged in the line paths, the upper part of the device having mating contact elements corresponding to the contact elements, in particular designed as plug pins, and at least one coarse protection element connected between two mating contact elements and at least one between two other counter-contact elements has a fine protection element connected, and wherein the at least one coarse protection element and the at least one fine protection element can be electrically connected to the longitudinal impedances by plugging the upper part onto the lower part.
  • the at least one fine protection element is connected with its first connection to two first mating contact elements and with its second connection with two second mating contact elements.
  • the two first mating contact elements are assigned to two contact elements in the first line deposit, between which a switch is arranged.
  • the two second mating contact elements are two contact elements in the second Line deposit, between which a switch is arranged, is assigned. The switches are open when the upper part of the device is attached to the lower part of the device.
  • the DE 10 2010 033 179 A1 discloses an electrical circuit arrangement for a surge protection device, with a surge arrester, in particular a gas arrester, and two line elements.
  • the circuit arrangement comprises an electrical switching device which has a first switching position in which the line elements are short-circuited by means of the switching device, and which has a second switching position in which the surge arrester is electrically interposed between the line elements by means of the switching device.
  • the DE 10 2006 034 164 B4 describes a multi-pole lightning current and/or surge arrester in a terminal block design for protecting information technology devices and systems, which includes a base part and a plug-in part.
  • a circuit board arrangement with a surge protection circuit device is arranged in the plug-in part and can be connected to the base part via contact tabs.
  • the DE 42 41 331 A1 describes a monitoring and/or security module, wherein a switching element is attached in a thermosensitive manner via a solder connection and is biased by spring force. If the spring force exceeds the holding force of the solder joint when the solder connection melts, the switching element opens and interrupts an electrical connection.
  • overvoltage protection circuit devices have, as overvoltage protection components, gas discharge arresters with breakdown voltages of typically a few 100 V on the input side and suppressor diodes, e.g. Zener diodes, with breakdown voltages of typically a few 10V on the output side. Furthermore, longitudinal decoupling elements in the form of resistors, e.g. varistors or similar, are usually provided.
  • Resistors longitudinal decoupling elements
  • Suppressor diodes typically show low-resistance behavior (up to a short circuit) when overloaded or aging.
  • Gas discharge arresters especially for data technology Applications
  • suppressor diodes and short-circuit or become low-resistance
  • overvoltage protection To date, possible aging or overload of the above-mentioned overvoltage protection components has occasionally been considered and signaled via a display, or defective components have been separated. If the overvoltage protection was defective, the useful signal circuit was previously either short-circuited (through a suppressor diode or gas discharge arrester) or interrupted (high-resistance resistor), resulting in a signal interruption and thus a failure of the entire signal transmission path (signal/data loss).
  • the present invention creates a surge protection device, in particular for information technology and/or communications technology systems, according to claim 1.
  • the idea of the present invention is to prevent a failure of the signal transmission path when the overvoltage protection device is triggered.
  • a mechanical tripping device is implemented, which disconnects the current path(s) leading through the overvoltage protection circuit device and provides one or more current paths which transmit the external voltage signal(s) from the respective input to the respective output, bypassing the overvoltage protection circuit device lead.
  • the mechanical triggering device can be designed in such a way that it responds to both overload and aging phenomena.
  • the mechanical triggering device has a conductor track connecting device attached to the circuit board with a solder connection or conductive adhesive connection, which can be melted in a triggered state when the predetermined triggering current is exceeded by the solder connection or conductive adhesive connection, the conductor track connecting device in the non-triggered state having a first interruption point in the third Current path bridged, and a displaceable mechanical actuating device for opening the first switching contact device when not triggered State and for closing the first switching contact device in the triggered state and for removing the conductor track connecting device in the triggered state.
  • a conductor track connection device which is designed, for example, as a mini circuit board, enables simple and safe separation of one or more conductor tracks for decoupling the overvoltage protection component.
  • a second electrical overvoltage protection component is connected in a fifth current path between the first output connection and the second output connection and the conductor connection device bridges a second interruption point in the fifth current path in the non-triggered state. This allows several surge protection components to be disconnected at the same time.
  • the overvoltage protection device comprises a fourth current path for conducting the second external voltage signal from the second input terminal to the second output terminal via the overvoltage protection circuit device; a second switching contact device for opening and closing the second current path, a third electrical overvoltage protection component which is connected between the fourth current path and the first electrical overvoltage protection component, the conductor track connecting device bridging a second interruption point in the fourth current path in the non-triggered state, a ground connection being provided and a first node between the first overvoltage protection component and the third overvoltage protection component is connected to the ground connection, and wherein the mechanical actuation device is set up for parallel opening of the first and second switching contact devices in the non-triggered state and for parallel closing of the first and second switching contact devices in the tripped state .
  • the surge protection device can be expanded to include two signal paths.
  • a fourth electrical overvoltage protection component is connected between the second output connection and the second electrical overvoltage protection component, with a second node between the second and fourth overvoltage protection components being connected to the ground connection, the conductor connecting device having a fourth interruption point in the fifth in the non-triggered state Current path between the fourth Surge protection component and the second output connection are bridged. In this way, all leakage currents can be diverted to the ground connection.
  • the mechanical actuating device has a rotatable pivoting part which is biased against the conductor track connecting device by means of a spring device.
  • a swivel part can be easily attached to a circuit board.
  • the mechanical actuating device has a plunger that can be deflected by the pivoting part and is connected via a link part to the first switching contact device or to the first and second switching contact devices.
  • the first switching contact device or the first and second switching contact devices can thus be controlled in parallel or synchronously with a simple construction.
  • an impedance device preferably a resistor, is provided in the third and/or fourth current path.
  • the first and/or third electrical overvoltage protection components have a gas discharge tube.
  • the second and/or fourth electrical overvoltage protection components have a bidirectional Zener diode, for example a TVS diode.
  • the first switching contact device or the first and second switching contact devices are designed as elastic spring tongues.
  • the housing is designed in one piece and has a trough-like lower part which can be closed by means of a cover plate.
  • the housing is designed in two parts and has a base part and a plug-in part, the plug-in part being releasably latchingly insertable into the base part, the first and second current paths, the first and second input terminals and the first and second output terminals and the first or the first and second switching contact devices are provided in the base part and wherein the Surge protection circuit device, the circuit board and the mechanical actuation device are provided in the plug-in part.
  • a plurality of plug contacts for electrically connecting the plug-in part to the base part are attached to the circuit board, which protrude from the plug-in part and can be inserted into the base part.
  • the mechanical actuation device is designed such that when the plug-in part is not inserted into the base part, the first or the first and second switching contact devices are closed. This makes it possible to replace the defective plug-in part without causing a signal interruption and the associated malfunction of the system.
  • the mechanical actuating device has a plunger that can be deflected by the pivoting part and can be inserted into the base part to open the first switching contact device or the first and second switching contact devices in the non-triggered state.
  • the plug-in part and the base part each have a trough-like lower part, which can be closed by means of a respective cover plate.
  • Fig. 1a ) -d) show schematic housing interior top views of a two-part surge protection device in the divided state according to a first embodiment of the present invention, namely Fig. 1a ) a plug-in part lower part, Fig. 1b ) a base part-lower part, Fig. 1c ) a plug-in part cover and Fig. 1d ) of a base part cover.
  • the overvoltage protection device has a plug-in part ST, which has a trough-like lower part WST. Inside the trough-shaped lower part WST of the plug-in part ST, a circuit board P is provided, on which an overvoltage protection circuit device is formed.
  • the overvoltage protection circuit device has a first impedance R1, for example a first linear resistance, and a second impedance R2, for example a second linear resistance R2. Furthermore, the overvoltage protection circuit device has a first gas discharge tube G1 and a second gas discharge tube G2 as well as a first bidirectional Zener diode Z1 and a second bidirectional Zener diode Z2.
  • a conductor track connection device B With a solder connection or conductive adhesive connection, a conductor track connection device B is attached to the circuit board P, which in a triggered state with a triggering current (leakage current) caused by exceeding a nominal parameter (overload) and / or by degradation of the components, in which the solder connection or conductive adhesive connection can be melted , can be removed so that the corresponding conductor tracks are interrupted.
  • the conductor track connecting device B in particular connects some interruption points in the overvoltage protection circuit device, as will be explained in more detail later.
  • a displaceable mechanical actuating device which has a rotatable pivoting part S, which is biased against the conductor track connecting device B by means of a spring device EF.
  • Reference symbol DA denotes the axis of rotation of the pivoting part S.
  • the rotatable pivoting part S is in mechanical contact with a plunger SL, which is not triggered State protrudes from the trough-like lower part WST and can be pressed into the trough-like lower part WST when triggered.
  • a light channel LK is provided in the lower wall of the trough-like lower part WGT, which, when the pivoting part S is pivoted, can be closed in the triggered state by a cover device DE, which is connected in one piece to the pivoting part S. Additionally connected in one piece to the pivoting part S is a display device AE, which can be pivoted in front of a viewing window SI of the trough-like lower part WGT when the pivoting part S is pivoted in the triggered state, in order to indicate a triggered state, for example by means of a corresponding red color marking, for example.
  • the overvoltage protection device has a base part BT, which also has a trough-like lower part WBT, as described below with reference to Fig. 1b ) is explained in more detail.
  • plug-in part ST On the side of the plug-in part ST facing the base part BT, there are a plurality of plug-in contacts P1, P2, P1', P2', PM on the circuit board P for electrically connecting the plug-in part ST to the base part BT.
  • locking lugs RA1, RA2 which are provided on resilient tongues Z1, Z2, serve to releasably lock the plug-in part ST with the base part BT.
  • the locking can be released, for example, with rotatable tabs LA1, LA2 in the trough-like lower part WST.
  • a first input connection E1 for applying a first external voltage signal a second input connection E2 for applying a second external voltage signal, a first output connection A1 for outputting the first external voltage signal and a second output connection A2 for outputting the second external voltage signal accommodated.
  • a first current path ST1 is formed in the base part BT and serves to conduct the first external voltage signal from the first input terminal E1 to the first output terminal A1, bypassing the overvoltage protection circuit device.
  • a second current path ST2 is formed in the base part BT and serves to conduct the second external voltage signal from the second input terminal E2 to the second output terminal A2, bypassing the overvoltage protection circuit device.
  • a first switching contact device F1 serves to open and close the first current path ST1
  • a second switching contact device F2 serves to open and close the second current path ST2.
  • the first switching contact device F1 and the second switching contact device F2 are designed as elastic spring tongues, which can be deflected via the plunger SL of the mechanical actuating device in the plug-in part ST for opening and closing the first and second current paths ST1, ST2, respectively, as will be explained in more detail later .
  • the first and second switching contact devices F1, F2 are coupled via a link part KU, so that they can be switched in parallel or simultaneously by the plunger SL.
  • a branch contact Z1 to a third current path ST3, which leads via the plug contacts P1 and P1 'to a further branch contact Z1', for conducting the first external voltage signal from the first input terminal E1 to the first output terminal A1 via the overvoltage protection circuit device with plug-in part ST inserted in non-triggered state.
  • a branch contact Z2 is formed in the base part BT, which leads via the plug contacts P2 and P2 ⁇ to a further branch contact Z2 ⁇ , for conducting the second external voltage signal from the second input connection E2 to the second output connection A2 via the overvoltage protection circuit device with plug-in part ST inserted in non-triggered state.
  • a plug contact PM is connected to a branch contact ZM, which in turn is connected to a ground connection M in the plug-in part ST, which is provided on the underside of the trough-like lower part WBT of the base part BT.
  • the underside of the trough-like lower part WBT is designed, for example, in such a way that mounting on a groundable mounting rail is possible.
  • Plug-in holes corresponding to the plug-in contacts P1, P2, PM, P1', P2' are arranged in the base part BT. It should also be mentioned here that the arrangement of the plug contacts P1, P2, P1 ', P2', PM is deliberately chosen to be asymmetrical in order to enable assembly in a position rotated by 180 ° in such a way that the first switching contact device F1 and the second switching contact device F2 are permanently open regardless of the status.
  • the cover plate DST of the plug-in part ST is shown, which has a corresponding opening for the light channel LK and which has locking elements RA for locking with the trough-like lower part WST as well as corresponding covers PA for the plug-in contacts P1, P2, P1 ', P2', PM.
  • the cover plate DBT is shown for the base part BT, which also has locking elements RA 'for locking the cover plate DBT with the trough-like lower part WBT and the light channel LK.
  • Fig. 2a ), b) show schematic housing interior top views of a two-part surge protection device in the assembled state according to the first embodiment of the present invention, namely Fig. 2a ) in the non-triggered state and Fig. 2b ) in the triggered state.
  • the plug-in part ST is locked in the base part BT.
  • the plunger SL of the mechanical actuation device presses on the link part KU and thus the first switching contact device F1 and the second switching contact device F2 are opened, so that the first current path ST1 and the second current path ST2 are open and the first external voltage signal via the overvoltage protection circuit device from the first input terminal E1 is routed to the first output connection A1.
  • the second external voltage signal is passed from the second input terminal E2 via the fourth current path ST4 via the overvoltage protection circuit device to the second output terminal A2.
  • the pivoting part S is biased against the soldered conductor track connection device B and is in the non-triggered state.
  • the triggered state is shown in which the solder connection or conductive adhesive connection of the conductor track connection device B is exceeded after the predetermined triggering current is melted and thus the interconnect connecting device B is removed from the contact points K, so that the interruption points, as explained in more detail below, are no longer bridged by the interconnect connecting device B.
  • the plunger SL of the mechanical actuating device is deflected upwards after pivoting the pivoting part S, so that the first switching contact device F1 and the second switching contact device F2 are closed for closing the first current path ST1 and the second current path ST2 due to the elastic spring force.
  • the third current path ST3 and the fourth current path ST4 are opened, so that the entire current flow leads through the first and second current paths ST1, ST2 via the base part BT.
  • Fig. 3a )-c) show schematic housing interior top views of a one-piece surge protection device according to a second embodiment of the present invention, namely Fig. 3a ) of a lower part in the non-triggered state, Fig. 3b ) of a lower part in the triggered state and Fig. 3c ) of a lid.
  • FIG. 3a corresponds to the illustration Fig. 2a ), whereby only the housing GT is designed in one piece with a tub-like lower part WGT.
  • the electrical and mechanical components correspond to those already referred to Fig. 2a ), b) have been described.
  • the cover plate DGT is shown for the trough-shaped lower part WGT, which in turn has latches RA" and the light channel LK.
  • Fig. 4 is a circuit diagram for explaining a first exemplary electrical implementation of a surge protection circuit device in the surge protection device according to the first or second embodiment.
  • the first current path ST1 runs from the first input connection E1 via the first switching contact device F1 to the first output connection A1.
  • the second current path ST2 runs analogously from the second input connection via the second switching contact device F2 to the second output connection.
  • the first and second switching contact devices F1, F2 are open, so that the first external voltage signal runs via the third current path from the first input connection E1 to the first output connection A1 and the second external voltage signal runs from the second input connection E2 via the fourth current path ST4 to the second output connection A2.
  • a first impedance R1 for example a first linear resistor, is connected to the third current path ST3.
  • a series connection of an overvoltage protection component in the form of a first gas discharge tube G1 and an overvoltage protection component in the form of a second gas discharge tube G2 is connected between a node K0 located in the third current path ST3 in front of the first resistor R1 and a node K1 located in the fourth current path ST4 in front of the second resistor R2, wherein a node KN1 located between the first and second gas discharge tubes G1, G2 is connected to the ground connection M.
  • the first and second gas discharge tubes G1, G2 typically have a breakdown voltage in the range of 70 volts to 600 volts and can therefore divert overvoltages occurring at the first and second input terminals E1, E2 to the ground terminal M.
  • a further overvoltage protection component in the form of a bidirectional Zener diode Z1 is connected between a node K2 located in the third current path ST3 behind the first resistor R1 and a node K4 located in the fourth current path ST4 behind the second resistor R2.
  • a fifth current path ST5 runs through the bidirectional Zener diode Z1.
  • the mechanical triggering device AU which, as described above, comprises the conductor track connecting device B, the pivoting part S, the elastic spring device EF and the plunger SL, bridges a first interruption point U1 in the third current path, a second interruption point U2 in the fourth current path, a third interruption point U1 'im fifth current path, which lies between the third current path ST3 and the bidirectional Zener diode Z1, and a fourth interruption point U2 ⁇ , which lies between the bidirectional Zener diode Z1 and the fourth current path ST4 when the non-triggered state is present.
  • the mechanical triggering device AU opens the first switching contact device F1 and the second switching contact device F2 via the plunger SL.
  • solder connection or conductive adhesive connection of the conductor track connection device B If, as described above, a predetermined triggering current flows through the solder connection or conductive adhesive connection of the conductor track connection device B, the solder connection or conductive adhesive connection is opened at the respective contacts K, which will be explained in more detail later by way of example, and the conductor track connection device B is activated by the elastic, prestressed pivoting part S removed.
  • the first interruption point U1, the second interruption point U2, the third interruption point U1 'and the fourth interruption point U2' are no longer bridged, i.e. interrupted, and that the plunger SL does not support the first switching contact device F1 and the second switching contact device F2 no longer opens, but releases it and the elastic spring force closes it, so that the first and second external voltage signals are conducted directly from the first input terminal E1 via the first current path ST1 to the first output terminal and the second external voltage signal is conducted directly via the current path ST2 from the second input terminal to the second output terminal , thereby bypassing the overvoltage protection circuitry from the first and second external voltage signals.
  • the plug-in part ST can thus be exchanged with the overvoltage protection circuit device and the mechanical tripping device AU without the signal flow through the first and second current paths ST1, ST2 is interrupted.
  • Fig. 5 is a circuit diagram for explaining a second exemplary electrical implementation of a surge protection circuit device in the surge protection device according to the first or second embodiment.
  • the second exemplary electrical implementation of the overvoltage protection circuit device differs from the first implementation in that instead of a single bidirectional Zener diode between the third interruption point U1' and the fourth interruption point U2 ⁇ , a series connection is provided between a first bidirectional Zener diode Z1 and a second bidirectional Zener diode Z2 is, wherein a node KN2 located between the first and second bidirectional Zener diodes Z1, Z2 is also connected to the ground connection M.
  • overvoltages that occur at the first and second bidirectional Zener diodes Z1, Z2, which typically have a breakdown voltage of 5 to 500 volts can also be diverted to the ground connection M in this second implementation.
  • the functionality of the mechanical triggering device AU is identical to that of the first implementation.
  • Fig. 6 is a circuit diagram for explaining a third exemplary electrical implementation of a surge protection circuit device in the surge protection device according to the first or second embodiment.
  • the overvoltage protection circuit device only a first external voltage signal is applied to the first input terminal E1 and routed to the first output terminal via the first switching contact device F1.
  • the second input connection E2 is at ground potential and is directly connected to the second output connection A2.
  • the third current path ST3 runs via the node K0, the first non-linear resistor R1, the first interruption point U1 and the second node K2 to the first output connection.
  • the first gas discharge tube G1 is connected between the node K0 and the first current path ST1
  • the bidirectional Zener diode Z1 is connected between the node K2 and the second current path ST2, with this Implementation only a first interruption point U1 is provided between the first non-linear resistor R1 and the node K2 and a second interruption point U1 'between the node K2 and the bidirectional Zener diode Z1.
  • the mechanical triggering device AU only acts on the first interruption point U1 and the second interruption point U1' as well as the first switching contact device F1, the functionality being analogous to the functionality described above in the first and second implementations.
  • Fig. 7a ),b) are functional diagrams for explaining an exemplary mechanical-electrical implementation of an exemplary mechanical-electrical implementation of a mechanical tripping device in the overvoltage protection device according to the first or second embodiment, namely Fig. 7a ) in the non-triggered state and Fig. 7b ) in the triggered state.
  • the conductor track connection device B in the form of a soldered circuit board with respective conductor track sections LB 1 and LB2 bridges three contacts K, which are located in the third current path ST3 and fourth current path ST4.
  • the conductor track connecting device B in the triggered state the conductor track connecting device B is removed and is, for example, loose in the plug-in part ST or overall part GT and the corresponding interruption points are open. Due to the low mass of the conductor track connecting device B and due to a heat distribution surface attached to the underside of the circuit board P and due to a heat distribution surface attached to the top of the circuit board P, heat generated "on one side" (at a contact K) is quickly distributed to all other soldering points. This achieves simultaneous and even heating. Separation occurs when all solder joints have exceeded the eutectic temperature point.
  • the first and second switching contact devices F1, F2 are closed, so that the first and second external voltage signals come directly from the first Input port E1 flows to the first output port A1 or from the second input port E2 to the second output port A2.
  • the surge protection device can be arranged on a mounting rail (top-hat rail) or attached to a circuit board via a special base as end device protection.
  • the housing geometry in particular the arrangement of the input and output connections, can be varied as desired depending on the application.
  • the mechanical triggering device is also not limited to the pivoting part and the conductor track connecting device, but can be implemented elsewhere using mechanical and electrical components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (17)

  1. Dispositif de protection contre les surtensions, destiné en particulier à des systèmes informatiques et/ou de communication, ledit dispositif comprenant :
    un boîtier (ST, BT ; GT) ;
    une première borne d'entrée (E1) destinée à appliquer un premier signal de tension extérieur, une deuxième borne d'entrée (E2) destinée à appliquer un deuxième signal de tension extérieur, une première borne de sortie (A1) destinée à délivrer le premier signal de tension extérieur, une deuxième borne de sortie (A2) destinée à délivrer le deuxième signal de tension extérieur ;
    un module de circuit de protection contre les surtensions (G1, R1, Z1 ; G1, G2, R1, R2, Z1 ; G1, G2, R1, R2, Z1, Z2), qui est au moins partiellement prévu sur une carte de circuit imprimé (P) disposée dans le boîtier (ST, BT ; G) ;
    un premier chemin de courant (ST1) destiné à conduire le premier signal de tension extérieur de la première borne d'entrée (E1) à la première borne de sortie (A1) en contournant le module de circuit de protection contre les surtensions (G1, R1, Z1 ; G1, G2, R1, R2, Z1, G1, G2, R1, R2, Z1, Z2) ;
    un deuxième chemin de courant (ST2) destiné à conduire le deuxième signal de tension extérieur de la deuxième borne d'entrée (E2) à la deuxième borne de sortie (A2) en contournant le module de circuit de protection contre les surtensions (G1, R1, Z1 ; G1, G2, R1, R2, Z1, G1, G2, R1, R2, Z1, Z2) ;
    un troisième chemin de courant (ST3) destiné à conduire le premier signal de tension extérieur de la première borne d'entrée (E1) à la première borne de sortie (A1) par le biais du module de circuit de protection contre les surtensions (G1, R1, ZI ; G1, G2, R1, R2, Z1 ; G1, G2, R1, R2, Z1, Z2) ;
    un premier module de contact de commutation (F1) destiné à ouvrir et fermer le premier chemin de courant (ST1) ;
    un premier composant électrique de protection contre les surtensions (G1) qui est monté entre le premier et le troisième chemin de courant (ST1, ST3) le dispositif de protection contre les surtensions étant caractérisé par un module de déclenchement mécanique (AU ; B, S, EF, SL) destiné à ouvrir le premier module de contact de commutation (F1) dans un état non déclenché et à fermer le premier module de contact de commutation (F1) pour interrompre le troisième chemin de courant (ST3) dans un état déclenché lorsqu'un courant de déclenchement dans le module de circuit de protection contre les surtensions (G1, R1, Z1 ; G1, G2, R1, R2, Z1 ; G1, G2, R1, R2, Z1, Z2) est causé par le dépassement d'un paramètre nominal et/ou par la dégradation des composants.
  2. Dispositif de protection contre les surtensions selon la revendication 1, le module de déclenchement mécanique (AU ; B, S, EF, SL) comportant :
    un module de liaison de pistes conductrices (B) qui est monté sur la carte de circuit imprimé (P) par une liaison par brasage ou une liaison par adhésif conducteur et qui peut fondre en cas de dépassement du courant de déclenchement spécifié à travers la liaison par brasage ou la liaison par adhésif conducteur ;
    le module de liaison de pistes conductrices (B) pontant un premier point d'interruption (U1) dans le troisième chemin de courant (ST3) à l'état non déclenché ; et
    un module d'actionnement mécanique déplaçable (S, EF, SL) destiné à ouvrir le premier module de contact de commutation (F1) à l'état non déclenché et à fermer le premier module de contact de commutation (F1) à l'état déclenché et à retirer le module de liaison de pistes conductrices (B) à l'état déclenché.
  3. Dispositif de protection contre les surtensions selon la revendication 2, un deuxième composant électrique de protection contre les surtensions (ZI) étant monté dans un cinquième chemin de courant (ST5) entre la première borne de sortie (A1) et la deuxième borne de sortie (A2) et le module de liaison de pistes conductrices (B) pontant à l'état non déclenché un deuxième point d'interruption (U1') dans le cinquième chemin de courant (ST5).
  4. Dispositif de protection contre les surtensions selon la revendication 2 ou 3, comprenant
    un quatrième chemin de courant (ST4) destiné à conduire le deuxième signal de tension extérieur de la deuxième borne d'entrée (E2) à la deuxième borne de sortie (A2) par le biais du module de circuit de protection contre les surtensions (G1, R1, Z1 ; G1, G2, R1, R2, Z1 ; G1, G2, R1, R2, Z1, Z2) ;
    un deuxième module de contact de commutation (F2) destiné à ouvrir et fermer le deuxième chemin de courant (ST2) ;
    un troisième composant électrique de protection contre les surtensions (G2) qui est monté entre le quatrième chemin de courant (ST3) et le premier composant électrique de protection contre les surtensions (G1) ;
    le module de liaison de pistes conductrices (B) pontant un deuxième point d'interruption (U2) dans le quatrième chemin de courant (ST4) à l'état non déclenché ;
    une borne de masse (M) étant prévue et un premier noeud (KN1) entre le premier composant de protection contre les surtensions (G1) et le troisième composant de protection contre les surtensions (G2) étant relié à la borne de masse (M) ; et
    le module d'actionnement mécanique (S, EF, SL) étant conçu pour ouvrir en parallèle les premier et deuxième modules de contact de commutation (F1, F2) à l'état non déclenché et pour fermer en parallèle les premier et deuxième modules de commutation de contact (F1, F2) à l'état déclenché.
  5. Dispositif de protection contre les surtensions selon la revendication 4 lorsqu'elle dépend de la revendication 3, un quatrième composant électrique de protection contre les surtensions (Z2) étant monté entre la deuxième borne de sortie (A2) et le deuxième composant électrique de protection contre les surtensions (Z1), un deuxième noeud (KN2) entre les deuxième et quatrième composants de protection contre les surtensions (Z1, Z2) étant relié à la borne de masse (M) ; le module de liaison de pistes conductrices (B) pontant à l'état non déclenché un quatrième point d'interruption (U2') dans le cinquième chemin de courant (ST5) entre le quatrième composant de protection contre les surtensions (Z2) et la deuxième borne de sortie (A2).
  6. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, le dispositif d'actionnement mécanique (S, EF ; SL) comportant une partie pivotante rotative (S) qui est précontrainte au moyen d'un module à ressort (EF) contre le module de liaison de pistes conductrices (B).
  7. Dispositif de protection contre les surtensions selon la revendication 6, le module d'actionnement mécanique (S, EF ; SL) comportant un poussoir (SL) qui peut être dévié par la partie pivotante et qui est relié au premier module de contact de commutation (F1) ou aux premier et deuxième modules de contact de commutation (F1, F2) par le biais d'une pièce formant coulisseau (KU).
  8. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, un module d'impédance (R1, R2), de préférence une résistance, étant prévu dans le troisième et/ou le quatrième chemin de courant (ST3, ST4).
  9. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, les premier et/ou troisième composants électriques de protection contre les surtensions (G1, G2) comportant un tube à décharge gazeuse.
  10. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, les deuxième et/ou quatrième composants électriques de protection contre les surtensions (Z1, Z2) comportant une diode Zener bidirectionnelle.
  11. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, le premier module de contact de commutation (F1) ou les premier et deuxième modules de contact de commutation (F1, F2) étant conçus sous la forme de languettes à ressort élastiques.
  12. Dispositif de protection contre les surtensions selon l'une des revendications précédentes, le boîtier (GT) étant conçu d'une seule pièce et comportant une partie inférieure (WGT) en forme d'auge qui peut être fermée au moyen d'une plaque de recouvrement (DGT).
  13. Dispositif de protection contre les surtensions selon l'une des revendications précédentes 1 à 11, le boîtier (BT, ST) étant conçu en deux parties et comportant une partie de base (BT) et une partie enfichable (ST), la partie enfichable (ST) pouvant s'enficher de manière amovible par encliquetage dans la partie de base (BT), les premier et deuxième chemins de courant (ST1, ST2), les première et deuxième bornes d'entrée (E1, E2) et les première et deuxième bornes de sortie (A1, A2) et le premier module de contact de commutation ou les premier et deuxième modules de contact de commutation (F1, F2) étant prévus dans la partie de base (BT) et le module de circuit de protection contre les surtensions (G1, R1, Z1 ; G1, G2, R1, R2, Z1 ; G1, G2, R1, R2, Z1, Z2), la carte de circuit imprimé (P) et le module d'actionnement mécanique (S, EF ; SL) étant prévus dans la partie enfichable (ST).
  14. Dispositif de protection contre les surtensions selon la revendication 13, une pluralité de contacts enfichables (P1, P2, P1', P2', PM) étant fixée à la carte de circuit imprimé (P) afin de relier électriquement la partie enfichable (ST) à la partie de base (BT), laquelle pluralité de contacts dépassent de la partie enfichable (ST) et peuvent être insérés dans la partie de base (BT).
  15. Dispositif de protection contre les surtensions selon l'une des revendications 13 ou 14, le module d'actionnement mécanique (S, EF, SL) étant conçu de telle sorte que, lorsque la partie enfichable (ST) n'est pas enfichée dans la partie de base (BT), le premier module de contact de commutation ou les premier et deuxième modules de contact de commutation (F1, F2) sont fermés.
  16. Dispositif de protection contre les surtensions selon l'une des revendications 13, 14 ou 15, le module d'actionnement mécanique comportant un poussoir (S, EF ; SL) qui peut être dévié par la partie pivotante et qui peut être inséré dans la partie de base (BT) afin d'ouvrir le premier module de contact de commutation (F1) ou les premier et deuxième modules de contact de commutation (F1, F2) à un état non déclenché.
  17. Dispositif de protection contre les surtensions selon l'une des revendications 13 à 16, la partie enfichable (ST) et la partie de base (BT) comportant chacune une partie inférieure (WST, WBT) en forme d'auge qui peut être fermée au moyen d'une plaque de recouvrement respective (DST, DBT).
EP21708646.1A 2020-02-26 2021-02-26 Dispositif de protection contre les surtensions Active EP4066269B1 (fr)

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DE102020202428.6A DE102020202428A1 (de) 2020-02-26 2020-02-26 Überspannungsschutzvorrichtung
PCT/EP2021/054909 WO2021170837A1 (fr) 2020-02-26 2021-02-26 Dispositif de protection contre les surtensions

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DE (1) DE102020202428A1 (fr)
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CN115149509B (zh) * 2022-09-05 2022-12-02 国网湖北省电力有限公司 一种电力施工用插拔式浪涌保护器
LU505806B1 (de) * 2023-12-18 2025-06-19 Phoenix Contact Gmbh & Co Überspannungsschutzgerät

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DE4241331C1 (de) 1992-05-15 1994-01-05 Rolf Braach Vorrichtung zur selektiven Zerkleinerung und zur Reinigung von Bildröhren
JP2007300736A (ja) * 2006-04-28 2007-11-15 Kawaguchi Denki Seisakusho:Kk 過電圧保護装置
DE102006034164B4 (de) 2006-05-09 2008-07-31 Dehn + Söhne Gmbh + Co. Kg Mehrpoliger Blitzstrom- und/oder Überspannungsableiter in Reihenklemmausführung
DE102010012684A1 (de) * 2010-03-24 2011-09-29 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzgerät
DE102010033179B4 (de) 2010-08-03 2012-10-25 Phoenix Contact Gmbh & Co. Kg Elektrische Schaltungsanordnung für ein Überspannungsgerät und ebensolches Überspannungsschutzgerät
DE102011115722B4 (de) 2011-10-12 2018-03-08 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzgerät
DE102013019390B4 (de) 2013-10-22 2016-01-07 Dehn + Söhne Gmbh + Co. Kg Überspannungsschutzeinrichtung, aufweisend mindestens einen Überspannungsableiter und eine, mit dem Überspannungsableiter in Reihe geschaltete, thermisch auslösbare Schalteinrichtung
DE202014004396U1 (de) 2014-05-26 2014-09-01 Dehn + Söhne Gmbh + Co. Kg Adapter zur Montage von als Steckmodule ausgeführten ein- oder mehrpoligen Überspannungsschutzgeräten sowie Verwendung eines derartigen Adapters
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US11723145B2 (en) * 2021-09-20 2023-08-08 Raycap IP Development Ltd PCB-mountable surge protective device modules and SPD circuit systems and methods including same

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US11798766B2 (en) 2023-10-24
EP4066269A1 (fr) 2022-10-05
EP4066269C0 (fr) 2023-10-25
CN115104166A (zh) 2022-09-23
DE102020202428A1 (de) 2021-08-26
WO2021170837A1 (fr) 2021-09-02
PL4066269T3 (pl) 2024-04-02
US20230036343A1 (en) 2023-02-02

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