EP2980936B1 - Cartridge for electrical installation protection device with cross connectors - Google Patents

Cartridge for electrical installation protection device with cross connectors Download PDF

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Publication number
EP2980936B1
EP2980936B1 EP15174752.4A EP15174752A EP2980936B1 EP 2980936 B1 EP2980936 B1 EP 2980936B1 EP 15174752 A EP15174752 A EP 15174752A EP 2980936 B1 EP2980936 B1 EP 2980936B1
Authority
EP
European Patent Office
Prior art keywords
bearing portion
cartridge
connector
electrical
base
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
EP15174752.4A
Other languages
German (de)
French (fr)
Other versions
EP2980936B8 (en
EP2980936A1 (en
Inventor
Boris Gautier
Stéphane BRESCON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Schweiz AG
Original Assignee
ABB France SAS
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Filing date
Publication date
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Publication of EP2980936A1 publication Critical patent/EP2980936A1/en
Application granted granted Critical
Publication of EP2980936B1 publication Critical patent/EP2980936B1/en
Publication of EP2980936B8 publication Critical patent/EP2980936B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01T4/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/01—Mounting; Supporting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/01—Mounting; Supporting
    • H01C1/014—Mounting; Supporting the resistor being suspended between and being supported by two supporting sections
    • 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
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7076—Coupling devices for connection between PCB and component, e.g. display
    • 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
    • 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 present invention relates to the protection of electrical installations and more specifically to the connection to the electrical circuit of a cartridge comprising an active protection component.
  • the active component of a surge arrester can be a varistor or a spark gap.
  • the varistors, or variable resistors, current are composed of zinc oxide assembled by sintering in the form of ceramic block.
  • a varistor block has a nonlinear voltage / current characteristic: beyond a certain voltage threshold, the impedance of the varistor drops to allow the discharge of the current responsible for the overvoltage. When the voltage returns to its normal level, the impedance of the varistor returns to its idle state.
  • the spark gaps when they consist of two electrodes facing each other in any medium (ambient air or specific gas). Beyond a certain voltage value of current, an electric arc is established between the electrodes which allows to evacuate the surge.
  • the spark gap or the varistor are frequently arranged in a cartridge also comprising two connectors, electrically connected to the electrical installation to be protected.
  • the present invention aims to solve all or part of the disadvantages mentioned above.
  • the electrical flow through the circuit portion of the base and passing through the active component via the connectors induces magnetic fields between the cartridge and the base which thus attract.
  • the phenomena of tearing of the cartridge during the passage of a high current in the circuit are avoided or limited, the cartridge is instead attracted to the base.
  • the mechanical reinforcements of the connections between the cartridge and the base are no longer necessary.
  • a direction transverse to the insertion direction means a direction oriented at an angle of between 45 ° and 90 ° with respect to the direction of insertion.
  • the direction transverse to the direction of insertion is a direction oriented at an angle of between 60 ° and 90 ° with respect to the direction of insertion.
  • the direction transverse to the direction of insertion is a direction oriented at an angle of between 80 ° and 90 ° with respect to the direction of insertion.
  • the direction transverse to the direction of insertion is a direction oriented perpendicular to the direction of insertion.
  • the invention also relates to a protective device of an electrical installation comprising a cartridge according to any one of the above-mentioned characteristics and a base comprising a first electric circuit range and a second electric circuit range, the cartridge being suitable to be electrically connected to the first range via a first electrical contact and to the second range via a second electrical contact.
  • the first and second electric circuit pads of the base are adapted to be traversed by an electrical flow in a specific direction.
  • This protection device comprises a base 15 on which is releasably connected a cartridge 2.
  • the elements arranged in the cartridge 2 are represented in figure 2 .
  • the cartridge 2 comprises an active component, here a varistor 1, a first connector 7 forming a first portion of the electrical circuit and a second connector 9 forming a second portion of the electrical circuit.
  • the active component could also be for example a spark gap.
  • the varistor 1 comprises two terminals 3, 5 to which are connected the electrical circuit portions of the connectors 7, 9.
  • the connector 7 is connected to the varistor 1 by the terminal 3.
  • the connector 7 comprises a support portion, here a pin 11 intended to come into contact with the base 15.
  • the connector 9 is connected to the varistor 1 by the terminal 5.
  • the connector 9 comprises a bearing portion, here a pin 13 intended to come into contact with the base 15.
  • the first electrical circuit portion comprises a first end point 8 and the second electrical circuit portion comprises a second end point 10 .
  • the base 15 is represented in figure 3 .
  • the base 15 comprises a first area 19 and a second area 21.
  • the first area 19 comprises an electrical contact 23 and the second area 21 comprises an electrical contact 25.
  • the cartridge 2 can be removably attached to the base 15. Indeed, the pins 11 and 13 are arranged to be electrically connected to the electrical contacts 23 and 25 of the tracks 19 and 21 of the base 15.
  • the electrical contacts 23, 25 each comprise an elastic contact device 24, 26, providing the electrical connection between the electrical contacts 23, 25 and the pins 11, 13. In addition, the installation and removal of the cartridge 2 in the base 15 is facilitated by these elastic contact devices 24, 26.
  • the cartridge is adapted to be attached to the base in an insertion direction 20, substantially parallel to the pins 11, 13.
  • the electrical contacts 23 and 25 In a direction transverse to the insertion direction 20, the electrical contacts 23 and 25 have a gap smaller than the gap between the end points 8 and 10 of the electrical circuit portions of the connectors 7, 9.
  • the pin 11 of the connector 7 is disposed between the pin 13 and the end point 10 in the direction transverse to the direction of insertion 20.
  • the pin 11 is electrically connected to the electrical contact 23 of the range 19.
  • the pin 13 of the connector 9 is disposed between the end point 8 and the pin 11 in the transverse direction 30 to the direction of insertion 20.
  • the pin 13 is electrically connected to the electrical contact 25 of the range 21.
  • the connectors 7 and 9 are cross at a crossing zone 27. At the crossing zone 27, the connectors 7, 9 have an offset along the z axis.
  • the terminals 3 and 5 of the active component 1 have substantially the same offset along the z axis.
  • a first segment 29 of the connector 7 defined between the end point 8 and the pin 13 extends opposite the range 19 of the base 15.
  • the orientation of the segment 29 is substantially transverse to the direction of insertion 20 .
  • a segment 31 of the connector 9 defined between the pin 11 and the end point 10 extends opposite the range 21 of the base 15.
  • the orientation of the segment 31 is substantially transverse to the direction of insertion 20.
  • the current is able to flow through the varistor 1.
  • the current flow is represented by the arrows 33.
  • a very high intensity of current flows therefore the first track 19 of the base 15, passes through the electrical contact 23 and reaches the cartridge by the pin 13.
  • the current flows through the electrical circuit portion of the connector 9, passes through the varistor 1 and then runs through the electrical circuit portion from the connector 7 to the pin 11.
  • the current then passes through the electrical contact 25 to reach the range 21 of the base 15.
  • Magnetic fields are induced by the current flow on the one hand in the ranges 19, 21 and secondly in the portions 29, 31 of the connectors 7, 9. These magnetic fields generate attraction in the direction of insertion 20 between the portion 29 of the connector 7 and the range 19 of the base 15 on the one hand, and between the portion 31 of the connector 9 and the range 21 of the base 15 of somewhere else.
  • the elastic contact devices 24, 26 make it possible to ensure electrical contact between the base 15 and the cartridge 2 even in the case of the passage of a current of high intensity.
  • the present invention is not limited to the embodiment described and shown, provided by way of illustrative and non-limiting example.
  • the distance between the connecting elements 7, 9 and the tracks 19, 21 of the base 15 can be modified in order to obtain a more or less strong attraction between the cartridge 2 and the base 15 in case of surge .

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Connection Or Junction Boxes (AREA)

Description

La présente invention se rapporte à la protection d'installations électriques et plus précisément à la liaison au circuit électrique d'une cartouche comprenant un composant actif de protection.The present invention relates to the protection of electrical installations and more specifically to the connection to the electrical circuit of a cartridge comprising an active protection component.

Le composant actif d'un parafoudre peut être une varistance ou un éclateur. Les varistances, ou résistances variables, actuelles sont composées d'oxyde de zinc assemblé par frittage sous forme de bloc de céramique. Un bloc de varistance a une caractéristique tension/courant non linéaire : au-delà d'un certain seuil de tension, l'impédance de la varistance chute pour permettre l'évacuation du courant responsable de la surtension. Quand la tension revient à son niveau normal, l'impédance de la varistance reprend sa valeur à l'état de veille.The active component of a surge arrester can be a varistor or a spark gap. The varistors, or variable resistors, current are composed of zinc oxide assembled by sintering in the form of ceramic block. A varistor block has a nonlinear voltage / current characteristic: beyond a certain voltage threshold, the impedance of the varistor drops to allow the discharge of the current responsible for the overvoltage. When the voltage returns to its normal level, the impedance of the varistor returns to its idle state.

Les éclateurs quand à eux sont constitués de deux électrodes se faisant face dans un milieu quelconque (air ambiant ou gaz spécifique). Au-delà d'une certaine valeur de tension de courant, un arc électrique s'établit entre les électrodes ce qui permet d'évacuer la surtension.The spark gaps when they consist of two electrodes facing each other in any medium (ambient air or specific gas). Beyond a certain voltage value of current, an electric arc is established between the electrodes which allows to evacuate the surge.

Dans un parafoudre, l'éclateur ou la varistance sont fréquemment disposés dans une cartouche comprenant également deux connecteurs, reliés électriquement à l'installation électrique à protéger.In a surge arrester, the spark gap or the varistor are frequently arranged in a cartridge also comprising two connectors, electrically connected to the electrical installation to be protected.

Lorsqu'une très forte intensité de courant parcourt le circuit électrique, des forces électromagnétiques sont engendrées et peuvent provoquer l'arrachement de la cartouche. Il est connu de l'art antérieur de renforcer mécaniquement la liaison entre la cartouche et l'installation électrique afin de pallier les forces conduisant à l'arrachement de la cartouche. Le risque d'arrachement est ainsi réduit mais n'est pas annulé. De plus, les renforts mécaniques des liaisons entre la cartouche et le circuit électrique sont coûteux et engendrent un allongement de la durée de remplacement de la cartouche. Le document EP 1 650 771 A1 montre une cartouche selon le préambule de la revendication 1.When a very high current flows through the electrical circuit, electromagnetic forces are generated and can cause the cartridge to tear. It is known from the prior art mechanically strengthen the connection between the cartridge and the electrical installation to overcome the forces leading to the tearing of the cartridge. The risk of tearing is thus reduced but is not canceled. In addition, the mechanical reinforcements of the connections between the cartridge and the electrical circuit are expensive and cause an increase in the duration of replacement of the cartridge. The document EP 1 650 771 A1 shows a cartridge according to the preamble of claim 1.

La présente invention a pour objectif de résoudre tout ou partie des inconvénients mentionnés ci-dessus.The present invention aims to solve all or part of the disadvantages mentioned above.

Á cet effet, la présente invention concerne une cartouche de dispositif de protection d'une installation électrique destinée à être rapportée sur une embase, la cartouche comprenant :

  • un composant actif de protection comprenant une première borne et une seconde borne ;
  • un premier connecteur formant une première portion de circuit électrique reliée électriquement à la première borne et un second connecteur formant une seconde portion de circuit électrique reliée électriquement à la seconde borne, la première portion de circuit électrique étant destiné à être reliée électriquement à l'embase par l'intermédiaire d'une première portion d'appui et la seconde portion de circuit électrique étant destiné à être reliée électriquement à l'embase par l'intermédiaire d'une seconde portion d'appui,
le premier connecteur et le second connecteur étant agencés pour permettre la liaison de la cartouche sur l'embase selon une direction d'insertion,
la première portion d'appui et la seconde portion d'appui présentant un écartement déterminé selon une direction transversale à la direction d'insertion,
caractérisée en ce que la première portion de circuit électrique comprend un premier point d'extrémité selon la direction transversale à la direction d'insertion et la seconde portion de circuit électrique comprend un second point d'extrémité selon la direction transversale à la direction d'insertion, le premier point d'extrémité et le second point d'extrémité présentant un écartement déterminé selon la direction transversale à la direction d'insertion, supérieur à l'écartement selon la direction transversale à la direction d'insertion entre la première portion d'appui et la seconde portion d'appui,
en ce que la première portion d'appui est disposée entre la seconde portion d'appui et le second point d'extrémité selon la direction transversale à la direction d'insertion,
et en ce que la seconde portion d'appui est disposée entre le premier point d'extrémité et la première portion d'appui selon la direction transversale à la direction d'insertion.To this end, the present invention relates to a protective device cartridge of an electrical installation intended to be attached to a base, the cartridge comprising:
  • an active protection component comprising a first terminal and a second terminal;
  • a first connector forming a first electrical circuit portion electrically connected to the first terminal and a second connector forming a second circuit portion electrical connector electrically connected to the second terminal, the first electrical circuit portion being adapted to be electrically connected to the base via a first support portion and the second electrical circuit portion being intended to be electrically connected to the base via a second support portion,
the first connector and the second connector being arranged to allow the connection of the cartridge on the base in an insertion direction,
the first bearing portion and the second bearing portion having a determined spacing in a direction transverse to the direction of insertion,
characterized in that the first electrical circuit portion includes a first end point in the direction transverse to the insertion direction and the second electrical circuit portion comprises a second end point in the direction transverse to the direction of insertion, the first end point and the second end point having a determined spacing in the direction transverse to the direction of insertion, greater than the spacing in the direction transverse to the direction of insertion between the first portion of support and the second support portion,
in that the first bearing portion is disposed between the second bearing portion and the second end point in the direction transverse to the direction of insertion,
and in that the second support portion is disposed between the first end point and the first support portion in the direction transverse to the direction of insertion.

Grâce aux dispositions selon l'invention, le flux électrique parcourant la portion de circuit de l'embase et passant par le composant actif par l'intermédiaire des connecteurs induit des champs magnétiques entre la cartouche et l'embase qui ainsi s'attirent. Ainsi, les phénomènes d'arrachement de la cartouche lors du passage d'un courant de forte intensité dans le circuit sont évités ou limités, la cartouche est au contraire attirée vers l'embase. Les renforts mécaniques des liaisons entre la cartouche et l'embase ne sont plus nécessaires.Thanks to the arrangements according to the invention, the electrical flow through the circuit portion of the base and passing through the active component via the connectors induces magnetic fields between the cartridge and the base which thus attract. Thus, the phenomena of tearing of the cartridge during the passage of a high current in the circuit are avoided or limited, the cartridge is instead attracted to the base. The mechanical reinforcements of the connections between the cartridge and the base are no longer necessary.

Selon des dispositions de la cartouche selon l'invention, on entend par une direction transversale à la direction d'insertion, une direction orientée selon un angle compris entre 45° et 90° par rapport à la direction d'insertion.According to provisions of the cartridge according to the invention, a direction transverse to the insertion direction means a direction oriented at an angle of between 45 ° and 90 ° with respect to the direction of insertion.

Préférentiellement, la direction transversale à la direction d'insertion est une direction orientée selon un angle compris entre 60° et 90° par rapport à la direction d'insertion.Preferably, the direction transverse to the direction of insertion is a direction oriented at an angle of between 60 ° and 90 ° with respect to the direction of insertion.

Préférentiellement, la direction transversale à la direction d'insertion est une direction orientée selon un angle compris entre 80° et 90° par rapport à la direction d'insertion.Preferably, the direction transverse to the direction of insertion is a direction oriented at an angle of between 80 ° and 90 ° with respect to the direction of insertion.

Préférentiellement, la direction transversale à la direction d'insertion est une direction orientée perpendiculairement par rapport à la direction d'insertion.Preferably, the direction transverse to the direction of insertion is a direction oriented perpendicular to the direction of insertion.

Suivant des caractéristiques optionnelles de la cartouche selon l'invention :

  • un premier segment du premier connecteur, défini entre le premier point d'extrémité et la deuxième portion d'appui, et un second segment du second connecteur, défini entre la première portion d'appui et le second point d'extrémité, sont orientés transversalement par rapport à la direction d'insertion, on entend par orientées transversalement une orientation selon un angle compris entre 45° et 90° ;
  • de préférence, le premier segment et le second segment sont orientés selon un angle compris entre 60° et 90° par rapport à la direction d'insertion ;
  • de préférence, le premier segment et le second segment sont orientés selon un angle compris entre 80° et 90° par rapport à la direction d'insertion ;
  • de préférence, le premier segment et le second segment sont orientés perpendiculairement par rapport à la direction d'insertion ;
  • la première portion d'appui et la seconde portion d'appui sont orientées selon un angle compris entre 0° et 45° par rapport à la direction d'insertion ;
  • de préférence, la première portion d'appui et la seconde portion d'appui sont orientées selon un angle compris entre 0° et 30° par rapport à la direction d'insertion ;
  • de préférence, la première portion d'appui et la seconde portion d'appui sont orientées selon un angle compris entre 0° et 10° par rapport à la direction d'insertion ;
  • de préférence, la première portion d'appui et la seconde portion d'appui sont orientées parallèlement par rapport à la direction d'insertion ;
  • par exemple, les portions d'appui sont des broches ;
  • le premier connecteur croise le second connecteur dans une zone de croisement au niveau de laquelle le premier connecteur se situe dans un plan décalé par rapport à un plan dans lequel se situe le second connecteur ;
  • la zone de croisement est comprise entre la première portion d'appui et la seconde portion d'appui dans la direction transversale à la direction d'insertion ;
  • par exemple, les portions d'appui sont des broches ;
  • l'élément actif de protection est choisi dans le groupe comprenant un éclateur et une varistance.
According to optional features of the cartridge according to the invention:
  • a first segment of the first connector, defined between the first end point and the second support portion, and a second segment of the second connector, defined between the first bearing portion and the second end point, are transversely oriented relative to the direction of insertion, the term transversely oriented orientation at an angle between 45 ° and 90 °;
  • preferably, the first segment and the second segment are oriented at an angle of between 60 ° and 90 ° with respect to the direction of insertion;
  • preferably, the first segment and the second segment are oriented at an angle of between 80 ° and 90 ° with respect to the direction of insertion;
  • preferably, the first segment and the second segment are oriented perpendicular to the direction of insertion;
  • the first bearing portion and the second bearing portion are oriented at an angle between 0 ° and 45 ° with respect to the direction of insertion;
  • preferably, the first bearing portion and the second bearing portion are oriented at an angle between 0 ° and 30 ° relative to the direction of insertion;
  • preferably, the first bearing portion and the second bearing portion are oriented at an angle between 0 ° and 10 ° relative to the direction of insertion;
  • preferably, the first bearing portion and the second bearing portion are oriented parallel to the direction of insertion;
  • for example, the support portions are pins;
  • the first connector crosses the second connector in a crossing zone at which the first connector is in a plane offset from a plane in which the second connector is located;
  • the crossing zone is between the first bearing portion and the second bearing portion in the direction transverse to the direction of insertion;
  • for example, the support portions are pins;
  • the active protective element is selected from the group consisting of a spark gap and a varistor.

L'invention se rapporte également à un dispositif de protection d'une installation électrique comprenant une cartouche conforme à l'une quelconque des caractéristiques susmentionnées et une embase comprenant une première plage de circuit électrique et une seconde plage de circuit électrique, la cartouche étant apte à être reliée électriquement à la première plage par l'intermédiaire d'un premier contact électrique et à la seconde plage par l'intermédiaire d'un second contact électrique.The invention also relates to a protective device of an electrical installation comprising a cartridge according to any one of the above-mentioned characteristics and a base comprising a first electric circuit range and a second electric circuit range, the cartridge being suitable to be electrically connected to the first range via a first electrical contact and to the second range via a second electrical contact.

Selon un aspect du dispositif de protection d'une installation électrique selon l'invention, les première et seconde plages de circuit électrique de l'embase sont aptes à être parcourues par un flux électrique dans une direction déterminée.According to one aspect of the protection device of an electrical installation according to the invention, the first and second electric circuit pads of the base are adapted to be traversed by an electrical flow in a specific direction.

Suivant des caractéristiques optionnelles du dispositif de protection d'une installation électrique selon l'invention :

  • la première portion de circuit électrique est reliée électriquement au second contact électrique par l'intermédiaire de la première portion d'appui, et la seconde portion de circuit électrique est reliée électriquement au premier contact électrique par l'intermédiaire de la seconde portion d'appui ;
  • le premier segment du premier connecteur s'étend au regard de la première plage et le second segment du second connecteur s'étend au regard de la seconde plage ;
  • la première plage et la seconde plage sont orientées transversalement par rapport à la direction d'insertion de la cartouche, on entend par orientées transversalement, une orientation selon un angle compris entre 45° et 90° ;
  • de préférence, la première plage et la seconde plage sont orientées selon un angle compris entre 60° et 90° par rapport à la direction d'insertion ;
  • de préférence, la première plage et la seconde plage sont orientées selon un angle compris entre 80° et 90° par rapport à la direction d'insertion ;
  • de préférence, la première plage et la seconde plage sont orientées perpendiculairement par rapport à la direction d'insertion ;
  • le premier contact électrique comprend un premier dispositif de contact élastique et le second contact électrique comprend un second dispositif de contact élastique, la première portion d'appui étant apte à venir en appui sur le second dispositif de contact élastique et la seconde portion d'appui étant apte à venir en appui sur le premier dispositif de contact élastique ;
  • la cartouche est apte à être reliée à l'embase de manière amovible ;
  • la distance entre les premier et second segments des premiers et second connecteurs et les première et seconde plages de l'embase est variable.
According to optional features of the protection device of an electrical installation according to the invention:
  • the first electrical circuit portion is electrically connected to the second electrical contact via the first support portion, and the second electrical circuit portion is electrically connected to the first electrical contact via the second support portion. ;
  • the first segment of the first connector extends with respect to the first range and the second segment of the second connector extends with respect to the second range;
  • the first range and the second range are oriented transversely to the direction of insertion of the cartridge is meant by transversely oriented orientation at an angle between 45 ° and 90 °;
  • preferably, the first range and the second range are oriented at an angle of between 60 ° and 90 ° with respect to the direction of insertion;
  • preferably, the first range and the second range are oriented at an angle of between 80 ° and 90 ° with respect to the direction of insertion;
  • preferably, the first range and the second range are oriented perpendicular to the direction of insertion;
  • the first electrical contact comprises a first elastic contact device and the second electrical contact comprises a second elastic contact device, the first support portion being able to bear against the second elastic contact device and the second support portion being able to bear against the first elastic contact device;
  • the cartridge is adapted to be connected to the base removably;
  • the distance between the first and second segments of the first and second connectors and the first and second ranges of the base is variable.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lumière de la description qui va suivre et à l'examen des figures ci-annexées, dans lesquelles :

  • la figure 1 représente un dispositif de protection d'une installation électrique ;
  • la figure 2 représente un composant actif de protection sur lequel sont rapportés deux connecteurs ; et
  • la figure 3 représente un composant actif de protection sur lequel sont rapportés deux connecteurs, reliés électriquement à une embase.
Other features and advantages of the present invention will emerge in the light of the following description and the examination of the appended figures, in which:
  • the figure 1 represents a device for protecting an electrical installation;
  • the figure 2 represents an active protection component to which two connectors are attached; and
  • the figure 3 represents an active protection component on which are reported two connectors, electrically connected to a base.

Sur l'ensemble de ces figures, des références identiques ou analogues désignent des organes ou ensemble d'organes identiques ou analogues.In all of these figures, identical or similar references denote identical or similar members or sets of members.

Sur la figure 1 est représenté un dispositif de protection d'une installation électrique en cas de forte surtension, par exemple en cas de foudre. Ce dispositif de protection comprend une embase 15 sur laquelle est reliée de manière amovible une cartouche 2.On the figure 1 is shown a protective device of an electrical installation in case of strong surge, for example in case of lightning. This protection device comprises a base 15 on which is releasably connected a cartridge 2.

Les éléments disposés dans la cartouche 2 sont représentés en figure 2. La cartouche 2 comprend un composant actif, ici une varistance 1, un premier connecteur 7 formant une première portion de circuit électrique et un second connecteur 9 formant une seconde portion de circuit électrique. Le composant actif pourrait également être par exemple un éclateur. La varistance 1 comprend deux bornes 3, 5 auxquelles sont reliées les portions de circuit électrique des connecteurs 7, 9. En une première extrémité, le connecteur 7 est relié à la varistance 1 par la borne 3. En une seconde extrémité, le connecteur 7 comprend une portion d'appui, ici une broche 11 destinée à venir au contact de l'embase 15. En une première extrémité, le connecteur 9 est relié à la varistance 1 par la borne 5. En une seconde extrémité, le connecteur 9 comprend une portion d'appui, ici une broche 13 destinée à venir au contact de l'embase 15. La première portion de circuit électrique comprend un premier point d'extrémité 8 et la seconde portion de circuit électrique comprend un second point d'extrémité 10.The elements arranged in the cartridge 2 are represented in figure 2 . The cartridge 2 comprises an active component, here a varistor 1, a first connector 7 forming a first portion of the electrical circuit and a second connector 9 forming a second portion of the electrical circuit. The active component could also be for example a spark gap. The varistor 1 comprises two terminals 3, 5 to which are connected the electrical circuit portions of the connectors 7, 9. At a first end, the connector 7 is connected to the varistor 1 by the terminal 3. At a second end, the connector 7 comprises a support portion, here a pin 11 intended to come into contact with the base 15. At a first end, the connector 9 is connected to the varistor 1 by the terminal 5. At a second end, the connector 9 comprises a bearing portion, here a pin 13 intended to come into contact with the base 15. The first electrical circuit portion comprises a first end point 8 and the second electrical circuit portion comprises a second end point 10 .

L'embase 15 est représentée en figure 3. L'embase 15 comprend une première plage 19 et une seconde plage 21. La première plage 19 comprend un contact électrique 23 et la seconde plage 21 comprend un contact électrique 25.The base 15 is represented in figure 3 . The base 15 comprises a first area 19 and a second area 21. The first area 19 comprises an electrical contact 23 and the second area 21 comprises an electrical contact 25.

La cartouche 2 est apte à être rapportée de manière amovible sur l'embase 15. En effet, les broches 11 et 13 sont agencées pour être reliées électriquement aux contacts électriques 23 et 25 des plages 19 et 21 de l'embase 15.The cartridge 2 can be removably attached to the base 15. Indeed, the pins 11 and 13 are arranged to be electrically connected to the electrical contacts 23 and 25 of the tracks 19 and 21 of the base 15.

Les contacts électriques 23, 25 comprennent chacun un dispositif de contact élastique 24, 26, assurant la liaison électrique entre les contacts électriques 23, 25 et les broches 11, 13. De plus, la mise en place et le retrait de la cartouche 2 dans l'embase 15 est facilitée par ces dispositifs de contact élastique 24, 26.The electrical contacts 23, 25 each comprise an elastic contact device 24, 26, providing the electrical connection between the electrical contacts 23, 25 and the pins 11, 13. In addition, the installation and removal of the cartridge 2 in the base 15 is facilitated by these elastic contact devices 24, 26.

La cartouche est apte à être rapportée sur l'embase selon une direction d'insertion 20, sensiblement parallèle aux broches 11, 13.The cartridge is adapted to be attached to the base in an insertion direction 20, substantially parallel to the pins 11, 13.

Selon une direction transversale 30 à la direction d'insertion 20, les contacts électriques 23 et 25 présentent un écartement inférieur à l'écartement présent entre les points d'extrémités 8 et 10 des portions de circuit électrique des connecteurs 7, 9.In a direction transverse to the insertion direction 20, the electrical contacts 23 and 25 have a gap smaller than the gap between the end points 8 and 10 of the electrical circuit portions of the connectors 7, 9.

La broche 11 du connecteur 7 est disposée entre la broche 13 et le point d'extrémité 10 selon la direction transversale 30 à la direction d'insertion 20. La broche 11 est reliée électriquement au contact électrique 23 de la plage 19. La broche 13 du connecteur 9 est disposée entre le point d'extrémité 8 et la broche 11 selon la direction transversale 30 à la direction d'insertion 20. La broche 13 est reliée électriquement au contact électrique 25 de la plage 21. Les connecteurs 7 et 9 se croisent au niveau d'une zone de croisement 27. Au niveau de la zone de croisement 27, les connecteurs 7, 9 présentent un décalage selon l'axe z. Les bornes 3 et 5 du composant actif 1 présentent sensiblement le même décalage selon l'axe z.The pin 11 of the connector 7 is disposed between the pin 13 and the end point 10 in the direction transverse to the direction of insertion 20. The pin 11 is electrically connected to the electrical contact 23 of the range 19. The pin 13 of the connector 9 is disposed between the end point 8 and the pin 11 in the transverse direction 30 to the direction of insertion 20. The pin 13 is electrically connected to the electrical contact 25 of the range 21. The connectors 7 and 9 are cross at a crossing zone 27. At the crossing zone 27, the connectors 7, 9 have an offset along the z axis. The terminals 3 and 5 of the active component 1 have substantially the same offset along the z axis.

Un premier segment 29 du connecteur 7 défini entre le point d'extrémité 8 et la broche 13 s'étend au regard de la plage 19 de l'embase 15. L'orientation du segment 29 est sensiblement transversale à la direction d'insertion 20.A first segment 29 of the connector 7 defined between the end point 8 and the pin 13 extends opposite the range 19 of the base 15. The orientation of the segment 29 is substantially transverse to the direction of insertion 20 .

Un segment 31 du connecteur 9 défini entre la broche 11 et le point d'extrémité 10 s'étend au regard de la plage 21 de l'embase 15. L'orientation du segment 31 est sensiblement transversale à la direction d'insertion 20.A segment 31 of the connector 9 defined between the pin 11 and the end point 10 extends opposite the range 21 of the base 15. The orientation of the segment 31 is substantially transverse to the direction of insertion 20.

Ainsi, lors d'une forte élévation de la tension au niveau de la cartouche, le courant est apte à s'écouler au travers de la varistance 1. La circulation du courant est représentée par les flèches 33. Une très forte intensité de courant parcourt donc la première plage 19 de l'embase 15, passe par le contact électrique 23 puis atteint la cartouche par la broche 13. Le courant parcourt la portion de circuit électrique du connecteur 9, passe par la varistance 1 puis parcourt la portion de circuit électrique du connecteur 7 jusqu'à la broche 11. Le courant passe ensuite par le contact électrique 25 pour rejoindre la plage 21 de l'embase 15. Des champs magnétiques sont induits par la circulation du courant d'une part dans les plages 19, 21 et d'autre part dans les portions 29, 31 des connecteurs 7, 9. Ces champs magnétiques engendrent une attirance selon la direction d'insertion 20 entre la portion 29 du connecteur 7 et la plage 19 de l'embase 15 d'une part, et entre la portion 31 du connecteur 9 et la plage 21 de l'embase 15 d'autre part.Thus, during a strong increase in voltage at the cartridge, the current is able to flow through the varistor 1. The current flow is represented by the arrows 33. A very high intensity of current flows therefore the first track 19 of the base 15, passes through the electrical contact 23 and reaches the cartridge by the pin 13. The current flows through the electrical circuit portion of the connector 9, passes through the varistor 1 and then runs through the electrical circuit portion from the connector 7 to the pin 11. The current then passes through the electrical contact 25 to reach the range 21 of the base 15. Magnetic fields are induced by the current flow on the one hand in the ranges 19, 21 and secondly in the portions 29, 31 of the connectors 7, 9. These magnetic fields generate attraction in the direction of insertion 20 between the portion 29 of the connector 7 and the range 19 of the base 15 on the one hand, and between the portion 31 of the connector 9 and the range 21 of the base 15 of somewhere else.

Lors du passage d'un courant de forte intensité, la broche 13 et le contact électrique 23 d'une part, et la broche 11 et le contact électrique 25 d'autre part se repoussent. Les dispositifs de contact élastique 24, 26 permettent d'assurer le contact électrique entre l'embase 15 et la cartouche 2 même dans le cas du passage d'un courant de forte intensité.During the passage of a high current, the pin 13 and the electrical contact 23 on the one hand, and the pin 11 and the electrical contact 25 on the other hand repel. The elastic contact devices 24, 26 make it possible to ensure electrical contact between the base 15 and the cartridge 2 even in the case of the passage of a current of high intensity.

Les phénomènes d'arrachement dus à la circulation de courants de sens opposés entre les portions 29, 31 des éléments de raccordement 7, 9 et les plages 19, 21 de l'embase 15 sont ainsi évités ou limités.The tearing phenomena due to the flow of currents in opposite directions between the portions 29, 31 of the connecting elements 7, 9 and the pads 19, 21 of the base 15 are thus avoided or limited.

Bien entendu, la présente invention ne se limite pas au mode de réalisation décrit et représenté, fourni à titre d'exemple illustratif et non limitatif. Par exemple, la distance entre les éléments de raccordement 7, 9 et les plages 19, 21 de l'embase 15 peut être modifiée afin d'obtenir une attraction plus ou moins forte entre la cartouche 2 et l'embase 15 en cas de surtension.Of course, the present invention is not limited to the embodiment described and shown, provided by way of illustrative and non-limiting example. For example, the distance between the connecting elements 7, 9 and the tracks 19, 21 of the base 15 can be modified in order to obtain a more or less strong attraction between the cartridge 2 and the base 15 in case of surge .

Claims (11)

  1. A cartridge for a protection device of an electrical installation intended to be attached to a base (15), the cartridge comprising:
    - an active protection component (1) comprising a first terminal (3) and a second terminal (5);
    - a first connector (7) forming a first portion of electrical circuit electrically linked to the first terminal (3) and a second connector (9) forming a second portion of electrical circuit electrically linked to the second terminal (5), the first portion of electrical circuit being intended to be electrically linked to the base (15) by means of a first bearing portion (11) and the second portion of electrical circuit being intended to be electrically linked to the base (15) by means of a second bearing portion (13),
    the first connector (7) and the second connector (9) being arranged to allow linking the cartridge (2) on the base (15) in a direction of insertion (20),
    the first bearing portion (11) and the second bearing portion (13) having a spacing determined in a direction (30) transverse to the direction of insertion (20),
    the first portion of electrical circuit comprising
    a first end point (8) in the direction (30) transverse to the direction of insertion (20) and the second portion of electrical circuit comprises a second end point (10) in the direction (30) transverse to the direction of insertion (20), the first end point (8) and the second end point (10) having a determined spacing in the direction (30) transverse to the direction of insertion (20), greater than the spacing in the direction (30) transverse to the direction of insertion (20) between the first bearing portion (11) and the second bearing portion (13),
    characterized in that the first bearing portion (11) is disposed between the second bearing portion (13) and the second end point (10) in the direction (30) transverse to the direction of insertion (20),
    and in that the second bearing portion (13) is disposed between the first end point (8) and the first bearing portion (11) in the direction (30) transverse to the direction of insertion (20).
  2. The cartridge according to claim 1, wherein a first segment (29) of the first connector (7), defined between the first end point (8) and the second bearing portion (13), and a second segment (31) of the second connector (9), defined between the first bearing portion (11) and the second end point (10), are transversely oriented with respect to the direction of insertion (20).
  3. The cartridge according to any of claims 1 or 2, wherein the first bearing portion (11) and the second bearing portion (13) are oriented at an angle comprised between 0° and 45° with respect to the direction of insertion (20).
  4. The cartridge according to any of the preceding claims, wherein the first connector (7) crosses the second connector (9) in a crossing area (27) at which the first connector (7) is located in a plane offset with respect to a plane in which the second connector (9) is located.
  5. The cartridge according to claim 4, wherein the crossing area (27) is comprised between the first bearing portion (11) and the second bearing portion (13) in the direction (30) transverse to the direction of insertion (20).
  6. The device for protecting an electrical installation comprising a cartridge (2) in accordance with any one of the preceding claims and a base (15) comprising a first pad (19) of electrical circuit and a second pad (21) of electrical circuit, the cartridge (2) being capable of being electrically linked to the first pad (19) by means of a first electrical contact (23) and to the second pad (21) by means of a second electrical contact (25).
  7. The protection device according to claim 6, wherein the first portion of electrical circuit (7) is electrically linked to the second electrical contact (25) by means of the first bearing portion (11), and the second portion of electrical circuit (9) is electrically linked to the first electrical contact (23) by means of the second bearing portion (13).
  8. The protection device according to any of claims 6 or 7, wherein the first segment (29) of the first connector (5) extends with respect to the first pad (19) and the second segment (31) of the second connector (9) extends with respect to the second pad (21).
  9. The protection device according to any of claims 6 to 8, wherein the first pad (19) and the second pad (21) are oriented transversely with respect to the direction of insertion (20) of the cartridge (2).
  10. The protection device according to any of claims 6 to 9, wherein the first electrical contact (23) comprises a first device of elastic contact (24) and the second electrical contact (25) comprises a second device of elastic contact (26), the first bearing portion (11) being able to bear against the second device of elastic contact (26) and the second bearing portion (13) being able to bear against the first device of elastic contact (24).
  11. The protection device according to any of claims 6 to 10, wherein the cartridge (2) is able to be removably linked to the base (15).
EP15174752.4A 2014-08-01 2015-07-01 Cartridge for electrical installation protection device with cross connectors Active EP2980936B8 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1457489A FR3024602B1 (en) 2014-08-01 2014-08-01 ELECTRICAL INSTALLATION PROTECTION DEVICE CARTRIDGE WITH CROSS CONNECTORS

Publications (3)

Publication Number Publication Date
EP2980936A1 EP2980936A1 (en) 2016-02-03
EP2980936B1 true EP2980936B1 (en) 2017-05-24
EP2980936B8 EP2980936B8 (en) 2017-08-30

Family

ID=51830514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15174752.4A Active EP2980936B8 (en) 2014-08-01 2015-07-01 Cartridge for electrical installation protection device with cross connectors

Country Status (5)

Country Link
US (1) US9941669B2 (en)
EP (1) EP2980936B8 (en)
CN (1) CN105322498B (en)
FR (1) FR3024602B1 (en)
RU (1) RU2680961C2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD811333S1 (en) * 2016-01-12 2018-02-27 M & I Materials Limited Varistor unit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490411A1 (en) * 1980-09-18 1982-03-19 Roudeau Maurice Protection and disconnection module for two=wire circuits - uses three-terminal overvoltage detector to hold contacts between input and output closed with sockets for test probes built into support
US6430020B1 (en) * 1998-09-21 2002-08-06 Tyco Electronics Corporation Overvoltage protection device including wafer of varistor material
DE10001667C1 (en) * 2000-01-03 2001-10-25 Dehn & Soehne Multi-pole overvoltage diverter for LV current supply system has U-shaped base part fitted with interchangable pre-configured terminals cooperating with removable fuse elements
DE202004006227U1 (en) * 2004-04-16 2004-09-16 Phoenix Contact Gmbh & Co. Kg Surge protection device
FR2877154B1 (en) * 2004-10-22 2006-12-22 Legrand Sa IMPROVED DEVICE FOR PROTECTING ELECTRICAL DEVICES AGAINST OVERVOLTAGES
US7433169B2 (en) * 2005-12-15 2008-10-07 Raycap Corporation Overvoltage protection devices including wafer of varistor material
US9310089B2 (en) * 2009-05-21 2016-04-12 Lennox Industries Inc. Variable speed motor control method and apparatus
DE102011013300B4 (en) * 2010-09-20 2013-10-10 Obo Bettermann Gmbh & Co. Kg Device combination for protection against overvoltages
JP5609734B2 (en) * 2011-03-24 2014-10-22 日立金属株式会社 connector
CZ304868B6 (en) * 2011-04-01 2014-12-17 Saltek S.R.O. Surge voltage protector with exchangeable overvoltage protection module
US20130292268A1 (en) * 2012-05-01 2013-11-07 Joseph Basmaji Personal Device Case

Also Published As

Publication number Publication date
FR3024602B1 (en) 2016-08-05
RU2680961C2 (en) 2019-03-01
US20160036202A1 (en) 2016-02-04
EP2980936B8 (en) 2017-08-30
US9941669B2 (en) 2018-04-10
CN105322498B (en) 2019-04-26
FR3024602A1 (en) 2016-02-05
RU2015131315A (en) 2017-02-03
RU2015131315A3 (en) 2019-01-09
EP2980936A1 (en) 2016-02-03
CN105322498A (en) 2016-02-10

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