EP1826794B1 - Vorrichtung zum Schutz gegen Überspannungen mit nahtlosen Kontakten und entsprechendes Herstellungsverfahren - Google Patents

Vorrichtung zum Schutz gegen Überspannungen mit nahtlosen Kontakten und entsprechendes Herstellungsverfahren Download PDF

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Publication number
EP1826794B1
EP1826794B1 EP07356029A EP07356029A EP1826794B1 EP 1826794 B1 EP1826794 B1 EP 1826794B1 EP 07356029 A EP07356029 A EP 07356029A EP 07356029 A EP07356029 A EP 07356029A EP 1826794 B1 EP1826794 B1 EP 1826794B1
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EP
European Patent Office
Prior art keywords
conducting element
mounting
electrically connected
interstitial space
conducting
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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.)
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EP07356029A
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English (en)
French (fr)
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EP1826794A1 (de
Inventor
Alain René Robert Lagnoux
Hervé LINDEPERG
Olivier LOuis André Kostrzewski
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ABB France SAS
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ABB France SAS
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    • 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
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/10—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection

Definitions

  • the present invention relates to the general technical field of devices for protecting electrical installations and equipment against electrical overvoltages, in particular transient, and in particular due to lightning.
  • Such a device is described for example in FR-A-2,846,478 .
  • a switch that is constructed in a similar way is described in DE 10120677 A1 .
  • the present invention also relates to a method for manufacturing a protection device of an electrical installation against overvoltages comprising at least one protection component having at least a first and a second supply terminal, at least a first and a second connection pad intended to ensure the electrical connection of the device to the electrical installation, at least a first conductive element electrically connected to the first terminal of the protection component and a second conductive element electrically connected to the first connection pad, at least a third conductive element electrically connected to the second terminal of the protection component and a fourth conductive element electrically connected to the second connection pad.
  • protection devices comprise, in general, one or more overvoltage protection components, such as for example a varistor or a spark gap, provided with power supply terminals making it possible to connect them electrically to the installation to be protected.
  • overvoltage protection components such as for example a varistor or a spark gap
  • the protection component (s) When exposed to voltages above a predetermined threshold value, they are able to discharge a discharge current to earth while limiting the overvoltage to a value compatible with the carrying capacity of the installation and the equipment connected to it.
  • surge protectors or even as " surge arresters ".
  • the protective devices with an insulating housing capable of separating electrically and mechanically the internal organs of said devices, such as the protective component, the environment in which these protective devices are implemented.
  • these boxes have standardized formats adapted to modular use within standard electrical panels.
  • connection pads at which it is possible to make an electrical connection with a conductive element outside the housing, such as a cable or a rail.
  • connection pads can be housed in the housing, be accessible from outside said housing via orifices in said housing and include a mechanical clamping system using conductive jaws able to ensure a solid locking of the junction electric, for example by screwing.
  • the protection devices generally have connection elements which provide the connection between the supply terminals of the protection component or components and the connection pads.
  • connection elements are in the form of a set of blades or conductive plates, preferably metal.
  • said permanent junctions must be of sufficient size and quality to withstand the mechanical and thermal stresses generated by the passage of discharge currents able to flow through the protection component in the normal operation of the protective device.
  • thermal assembly methods such as brazing or electrical welding, including spot welding or induction welding.
  • the objects assigned to the invention are therefore intended to remedy the various drawbacks listed above and to propose a new device for protecting an electrical installation against overvoltages which is particularly simple and reliable design.
  • Another object of the invention is to provide an overvoltage protection device whose manufacture is particularly inexpensive.
  • Another object of the invention is to provide an overvoltage protection device whose manufacture is particularly low polluting.
  • Another object of the invention is to propose a novel method of manufacturing a surge protection device which is particularly simple and inexpensive.
  • the protective device 1 of an electrical installation against overvoltages according to the invention is intended to be connected bypass (or " parallel ”) on said electrical installation to be protected.
  • electrical installation refers to any type of device or network powered electrically and likely to experience voltage disturbances, including transient overvoltages due to lightning.
  • the protective device 1 can therefore advantageously constitute a surge arrester.
  • the protection device 1 according to the invention is advantageously intended to be disposed between a phase of the installation to be protected and the earth. It is also conceivable, without departing from the scope of the invention, that the device 1, instead of being connected bypass between a phase and the earth, is connected between the neutral and the earth, between the phase and the neutral, or between two phases to achieve differential protection.
  • the protection device 1 comprises at least one protective component 2 intended to be electrically connected to said electrical installation in order to protect it against overvoltages, in particular transients.
  • Said protection component 2 can in particular be formed indifferently by a varistor or a spark gap.
  • each protection component 2 against overvoltages is formed by a varistor, it being understood that the use of a varistor is indicated only as a preferred example and in no way constitutes a limitation of the invention.
  • the protection component 2 has at least a first power supply terminal 3 and a second power supply terminal 4.
  • the varistor 2 is in the form of a rectangular parallelepiped substantially flattened, the first and second supply terminal being formed by metal plates protruding from the faces of said rectangular parallelepiped.
  • the protection device 1 also comprises a first connection pad 5 and a second connection pad 6, said pads being intended to ensure the electrical connection of the device to the electrical installation.
  • the geometry, the dimensions and the number of constituent parts of said pads can naturally vary without departing from the scope of the invention.
  • the protection device 1 comprises a housing 7 in which the protective component 2 is mounted.
  • Said housing 7 will preferably be made of an insulating material and arranged to electrically and mechanically separate certain constituent elements of the device, such as that the protective component 2, the environment in which is implemented said device 1.
  • the components of the protective device and protected within the housing 7 are hereinafter referred to as " internal organs ".
  • said housing 7 will be particularly suitable for facilitating the handling and implementation of the device 1, while limiting the risk of short circuit or accidental electrocution related to these operations.
  • the housing 7 may be formed by a first cheek 7A hollow and a second cheek 7B assembled against each other substantially in the sagittal plane of said housing 7.
  • first cheek 7A serves as support for the varistor 2 and the connection pads 5, 6 without this constituting a limitation of the invention.
  • connection pads 5, 6 will thus advantageously constitute electrical connection interfaces between the internal members and the electrical installation to be protected, that is to say electrical connection means between the inside and the outside. outside the housing 7.
  • said pads will be housed entirely in said housing 7 and may comprise, for example, screw jaws disposed vis-à-vis orifices cut into said housing 7 to allow engagement and then holding by clamping bare wire elements or previously crimped in pods.
  • parts of said connection pads could protrude from the housing 7, for example to form pins, without departing from the scope of the present invention.
  • the device 1 also comprises at least one first conductive element 10 electrically connected to the first terminal 3 of the protection component 2 and a second conductive element 11 electrically connected to the first connection stud 5.
  • first and second conductive elements 10, 11 are electrically connected to each other.
  • the protection device 1 also comprises at least a third conductive element 12 electrically connected to the second terminal 4 of the protection component 2, and a fourth conductive element 13 electrically connected to the second connection pad 6.
  • said third and fourth conductive elements 12, 13 are electrically connected to each other.
  • the protection device 1 comprises a first mount 14 delimiting a first interstitial space 14 'of fixed dimension, in which at least part of the first conductive element 10 and the second element are accommodated. conductor 11, the dimension of said first interstitial space 14 'being such that said first and second conductive elements are held in contact with one another in order to ensure the electrical connection between them.
  • said device 1 comprises a second frame 15 delimiting a second interstitial space 15 'of fixed dimension, within which are housed, at least partially, the third conductive element 12 and the fourth conductive element 13, the dimension of said second interstitial space being such that said third and fourth conductive elements are held in contact with each other to provide the electrical connection between them.
  • the geometric, physical and functional considerations applying to the first conductive element 10, to the second conductive element 11, to the first frame 14 and to the first interstitial space 14 ', as well as to any combination of these entities are which may apply respectively to the third conductive element 12, to the fourth conductive element 13, to the second frame 15 and to the second interstitial space 15 ', and to a corresponding combination of these latter entities.
  • Mount means an element or a set of elements having a housing, in the form of an " interstitial space " capable of accommodating at least partly the first and second conductive elements, respectively the third and fourth elements conductors, to provide a mechanical holding function of these conductive elements and to make an electrical connection between them.
  • said frame will allow said conductor elements to be mounted so that they are kept in contact with each other, substantially immobile with respect to each other.
  • Said mount will in particular provide an electrical connection between said conductive elements that is able to withstand the thermal and mechanical effects of the discharge currents that are likely to pass through the protective component 2, as well as the conductive elements 10, 11, 12, 13, when the device 1 closes overvoltages.
  • said mount is preferably fixed for this purpose in connection with the housing 7.
  • the first and / or second frame may comprise one or more mechanical pieces of packing, in particular distinct from the casing 7, such as jumpers, shims or spacer wedges for example.
  • first frame 14 and / or the second frame 15 is integral with the housing 7, and even more preferably with the first cheek 7A. More specifically, said first and second frames 14, 15 may consist of bosses protruding from the bottom 7'A cheek 7A, said bosses having a slot or a groove preferably extending substantially in a plane normal to said bottom of the cheek to form the interstitial spaces 14 ', 15' corresponding.
  • each frame will preferably comprise either a single piece or several pieces joined together in connection with each other.
  • the only dimensioning of the frames, and more particularly the interstitial spaces associated with them, with respect to the dimensions and the geometry of the conductive elements to be electrically connected, makes it possible to guarantee the electrical contact of said conductive elements.
  • the junction between the first conductive element 10 and the second conductive element 11 at the level of the first frame is achieved by a simple juxtaposition, preferably with overlapping, of said first and second conductive elements within the interstitial space 14 ', without resorting for example to any method of screwing, riveting, clinching, soldering or welding.
  • the electrical and / or mechanical connection between the first conductive element 10 and the second conductive element 11, respectively the electrical and / or mechanical connection between the third conductive element 12 and the fourth conductive element 13, is then provided without solder or solder.
  • the first conductive element (10) and the second conductive element (11) can be forcibly housed in the first frame (14).
  • functional position is meant the position occupied by the conductive elements within the protective device 1 when they are housed and electrically connected in their respective frames and that they are capable of fulfilling their conduction function of the electricity between the connection pads and the power terminals.
  • the design at rest of the interstitial space 14 'with respect to the resting dimensions of the first and second conductive elements 10, 11 is such that there is a mechanical interference between said conductive elements 10, 11 and the mount 14 which delimits the interstitial space 14 '.
  • This interference that is to say this " negative clearance " , leads to obtaining a tight fitting, said conductive elements 10, 11 being embedded in the first frame 14 and maintained under the effect of antagonistic constraints of deformation exerting mutually between said frame and said conductive elements.
  • the expression " at rest” refers to the state in which the conductive elements 10, 11 and the first frame 14 are located, before the conductive elements are inserted into the frame so as to occupy their functional position within the frame.
  • the state of rest corresponds to that in which the mounts and the conductive elements are not subjected to any deformation or stress.
  • the third conductive element and the fourth conductive element can be force-fitted into the second frame 15.
  • the first conductive element 10 and the second conductive element 11 are adjusted substantially without constraint in the first frame 14.
  • the sizing at rest of the interstitial space 14 'with respect to resting dimensions of the first and second conductive elements 10, 11 is such that there is a substantially zero clearance between said conductive elements 10, 11 and the frame 14 which defines the interstitial space 14 '.
  • the third conductive element and the fourth conductive element can be adjusted substantially without stress in the second frame 15.
  • satisfactory electrical contact is meant in particular an electrical connection whose electrical resistance is sufficiently low so that it does not significantly disturb the normal operation of the device 1.
  • the intensity of the electric current flowing through the protection component 2 and therefore through the conductive elements 10, 11, 12, 13 is negligible, or even substantially zero.
  • a discharge current caused by example by a surge related to a phenomenon of lightning, it has a high intensity but a very short duration. In either case, it is possible to tolerate that the electrical connections have a certain resistance, as long as the energy which is dissipated by the Joule effect is able to be evacuated without presenting a danger for the device 1.
  • the absence of permanent current of high intensity within the device 1 allows a certain tolerance vis-à-vis the range of admissible resistance values for the links. Therefore, it is possible to use electrical connections made by simply joining the conductive elements, without seeking to bind them more intimately by a clamping force to minimize the electrical resistance that their interface presents.
  • the evolution of the first variant to the second variant can be done spontaneously with the aging of the device 1, in the case where one and / or the other of the frames, initially constrained, operates progressively. creep relaxation.
  • a tight assembly evolves over time towards an adjusted fitting, the deformation of the frame, and more particularly the enlargement of the interstitial space, accompanied by a loosening of the clamping pressure, up to a substantial, but acceptable, cancellation of the latter.
  • the conductive elements to be connected at the frames are distinct and independent of each other prior to their mounting within the device.
  • the conductive elements intended to be connected to one another have conjugate forms allowing for example their meeting by free interlocking prior to their insertion under stress.
  • one or more of the conductive elements 10, 11, 12, 13 may be formed by the meeting of several parts, independent of each other or in a fixed or articulated mechanical connection.
  • the first frame 14 is able to accommodate an assembly comprising a part forming the first conductive element 10 and two parts forming the second conductive element 11, one of the two parts of the second conductive element. for example acting as interposition hold, without departing from the scope of the invention.
  • said conductive elements will preferably each be in the form of a single piece at their respective frames.
  • the first mount 14 comprises two walls 14A, 14B extending substantially parallel to each other and delimiting the first interstitial space 14 ', the rest dimension of said first interstitial space 14' then being equal to the distance d 1 separating said walls 14A, 14B prior to insertion of the first and second conductive elements.
  • the second mount 15 may comprise two walls 15A, 15B extending substantially parallel to each other and delimiting the second interstitial space 15 ', the rest dimension of said second interstitial space 15' then being equal to the distance d 2 (not shown) which separates said walls 15A, 15B before the insertion of the third and fourth conductive elements.
  • said walls 14A, 14B, respectively 15A, 15B protrude from the bottom 7'A of the cheek 7A of the housing and extend substantially in planes perpendicular to said bottom 7'A.
  • first conductive element 10 and the second conductive element 11 are respectively formed by a first conductive blade 16 and a second conductive blade 17, preferably metal, said blades respectively having resting thicknesses. noted e 1 and e 2 as illustrated in figure 3 .
  • the third conductive element 12 and the fourth conductive element 13 are formed by a third conductive plate 18 and a fourth conductive plate 19, said blades respectively having resting thicknesses (not shown) denoted e 3 and e 4 .
  • said conductive blades can be made of substantially pure copper, especially in an alloy whose copper content is greater than or equal to 99%, without having to resort to more expensive alloys like Cu-Be.
  • the electrical and mechanical connection between the first conductive element 10 and the first power supply terminal 3 is preferably provided by a heat-sensitive means capable of releasing a portion of the conductive element 10 in the event of overheating of the varistor 2, so that this portion of the first conductive element 10 can then move substantially parallel to one of the main extension faces of the varistor 2, preferably in rotation, in order to isolate said varistor from the electrical installation .
  • a thermal disconnection means is preferably used a first conductive blade 16 whose intrinsic elasticity will allow it to work in bending in the manner of a spring, said first blade 16 being preloaded when the first conductive element 10 is electrically connected to the first power supply terminal 3.
  • the other conductive blades 17, 18 and 19 do not require a particular elasticity in this particular embodiment, the second, third and fourth conductive blades can be made of a relatively thin alloy. cheap containing more than 99% copper.
  • the present invention is naturally not limited to a particular geometry of said conductive blades.
  • they may have for example corrugated sections, curved, bulges, baffles, notches or salient elements without departing from the scope of the present invention.
  • conductive blades will be used whose portions intended to be integrated into the frames are substantially flat and of regular thickness.
  • the first interstitial space will be formed by a stepped groove in which the first and the second conductive element will overlap.
  • a first conductive blade 16 and a second conductive blade 17 substantially stiffer than the first mount 14 so that the insertion of said conductive blades 16, 17 induces a deformation of said first frame 14 by wedge effect, and more precisely to produce a spacing or a crushing of the walls 14A, 14B of the latter, that is to say a widening under stress of the first interstitial space 14 '.
  • the rest dimension d 1 of said first interstitial space 14 ' is preferably chosen to be substantially less than the sum e 1 + e 2 of the resting thicknesses of the first and second conductive strips.
  • the rest dimension d 2 of the second interstitial space 15 ' is preferably chosen to be substantially less than the sum e 3 + e 4 of the resting thicknesses of the third and fourth conductive strips.
  • the first and / or second frame may comprise a jumper having a substantially U-shaped section whose branches are likely to move apart by elastic deformation during the insertion of the first and second elements.
  • the first frame 14 is formed by a housing formed directly in the first conductive element 10 or in the second conductive element 11, so that said conductive elements 10, 11 can to encase, especially under stress, directly one in the other.
  • preform the second conductive blade 17 so that it has a portion of U-shaped section between the branches of which can be one end of the first conductive blade 16 is slid, or else a cylindrical geometry that makes it possible to obtain the tightening of substantially concentric conducting elements.
  • the second frame 15 is integral with the third conductive element 12 or the fourth conductive element 13.
  • the assembly of the first conductive element 10 with the second conductive element 11, as well as the assembly of the third conductive element 12 with the fourth conductive element 13 may advantageously have a reversible nature, in particular because the arrangement of said conductive elements allows to consider an extraction and a separation of these out of their respective mounts.
  • the frames and / or the conductive elements with non-return means capable of preventing the extraction and separation of the conductive elements after they have been inserted in their respective mounts.
  • non-return means capable of preventing the extraction and separation of the conductive elements after they have been inserted in their respective mounts.
  • the frames themselves can be indifferently electrically insulating or conductive without departing from the scope of the invention.
  • Said manufacturing method relates to a protection device 1 of an electrical installation against overvoltages comprising at least one protection component 2 having at least a first and a second supply terminal 3, 4, at least a first and a second stud 5, 6 for the electrical connection of the device 1 to the electrical installation, at least a first conductive element 10 electrically connected to the first terminal 3 of the protection component and a second conductive element 11 electrically connected to the first electrode stud. connection 5, at least one third conductive element 12 electrically connected to the second terminal 4 of the protection component and a fourth conductive element 13 electrically connected to the second connection pad 6.
  • the method of manufacturing a protection device comprises a step (a) during which is inserted, at least partially, into a first interstitial space 14 'of dimension fixed by construction and delimited by a first frame 14, the first conductive element 10 and the second conductive element 11 such that said first and second conductive elements 10, 11 are held in contact with each other to provide an electrical connection between them.
  • substantially flat conductive blades will be used which will be contiguous in their respective frames according to their main extension plane, in order to obtain a regular, extended and stable connection.
  • step (a) comprises a substep (a 1 ) during which the first conductive element 10 and the second conductive element 11 are force-fitted into the first frame 14.
  • a 1 a substep during which the first conductive element 10 and the second conductive element 11 are force-fitted into the first frame 14.
  • first and second conductive blades will be chosen so that their cumulative thickness e 1 + e 2 is substantially greater than the rest spacing d 1 of the walls 14A, 14B, ie the rest dimension of the first interstitial space 14 '.
  • the interposition of these blades between the walls 14A, 14B creates a wedge effect which tends to move said walls 14A, 14B away from each other, that is to say to increase the dimension of the first interstitial space 14 'to substantially match it to the cumulative thickness e 1 + e 2 of the first and second conductive blades.
  • the respective thicknesses e ' 1 and e' 2 of the first and second conductive strip considered after the insertion of said blades into the first frame 14 correspond substantially to the thicknesses at rest e 1 and e 2 of said blades.
  • the dimensional adaptation of the first interstitial space 14 'to the conductive elements that it receives induces a first frame deformation 14 which results in the appearance of an elastic stress which tends to oppose this deformation. and bringing the walls 14A, 14B closer, and therefore compressing the conductive strips 16, 17 against each other.
  • the sub-step (a 1 ) preferably comprises a phase (a 1 ') during which the first frame 14 is elastically deformed in order to increase the dimension of the first interstitial space 14'.
  • the sub-step (a 1 ) may comprise a phase (a 1 ") during which the first and / or second conductive element is deformed elastically during the insertion of said conductive elements. 10, 11 in the first mount 14.
  • phase (a 1 ') and (a 1 ") can occur simultaneously or independently of each other without departing from the scope of the present invention.
  • the manufacturing method of the device 1 comprises a step (b) during which is inserted, at least partially, into a second interstitial space 15 'of dimension fixed by construction and delimited by a second frame 15, the third conductive element 12 and the fourth conductive element 13 so that said third and fourth conductive elements 12, 13 are held in contact with each other in order to provide an electrical connection between them .
  • step (b) may comprise a substep (b 1 ) during which the third conductive element 12 and the fourth conductive element 13 are force-fitted into the second frame 15.
  • the substep (b 1 ) may comprise a phase (b 1 ') during which the second frame (15) is elastically deformed in order to increase the dimension of the second interstitial space 15'.
  • the sub-step (b 1 ) may comprise a phase (b 1 ") during which the third and / or fourth conductive element is elastically deformed during the insertion of said conductive elements (12, 13) into the second frame (15).
  • said manufacturing method further comprises a step (c) in which the housing 7 is made to accommodate the protection component 2 so that the first frame 14 and / or the second frame 15 have come from material with said housing 7.
  • the housing will preferably be made of a thermoplastic material such as polyamide or polycarbonate, and even more preferably in a polycarbonate loaded with 20% of glass fibers.
  • step (c) will comprise a substep (c 1 ) for molding a first cheek 7A.
  • the first cheek 7A will have a substantially planar bottom 7'A on which we can report and fix the protective component 2 so that one of the main faces of said protection component extends parallel to said bottom 7 'AT.
  • the first cheek 7A will further comprise housings forming the first and second frames 14, 15, said housing being delimited by walls integrally formed with the bottom 7'A and extending substantially, in particular at the angles of clearance by , according to planes perpendicular to said bottom 7'A.
  • such an arrangement allows in particular an easy mounting of the conductive elements in their respective mount by relating them in a normal direction to the bottom 7'A, substantially identical to that which allows to place the protective component 2 in the cheek 7A.
  • the housing frames 14,15 may also be grinded by machining in a step (d) after step ( C1 ) to ensure the tight fit with the conductive blades.
  • steps (a) and (b) may be carried out simultaneously or one after the other.
  • step (c) will preferably precede said steps (a) and (b).
  • the value of the clamping force can advantageously be determined by fixing the nominal values and the respective tolerances of the rest dimension d 1 of the first interstitial space 14 'and the resting thicknesses e 1 and e 2 of the conductive blades 16, 17 depending in particular on the elasticity of the constituent materials and the geometry of the frames and the conductive elements.
  • the device according to the invention advantageously has connections between conductive elements which are particularly simple to implement while allowing to achieve reliable and functional junctions, both electrical and mechanical.
  • the reduction in the number of parts needed to make the electrical connections between the protection component and the installation to be protected makes it possible to reduce the cost price of said device, by limiting in particular the requirements for raw materials as well as for manufacturing and assembly.
  • the particular arrangement of the various constituent elements of the device 1 within the housing 7 greatly facilitates the assembly thereof, since no complex tools or special qualifications of the operator are required.
  • connection pads 5, 6 and the conductive elements 10, 11, 12, 13 makes it possible to envisage a relatively simple automation of the manufacturing process.
  • the device according to the invention advantageously allows to associate an optimized manufacturing cost with high performance and reliability.

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  • Emergency Protection Circuit Devices (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Thermistors And Varistors (AREA)

Claims (15)

  1. Überspannungsschutzvorrichtung (1) für eine elektrische Anlage, umfassend:
    - mindestens eine Schutzkomponente (2), die mindestens eine erste und eine zweite Versorgungsklemme (3, 4) aufweist;
    - mindestens ein erstes und ein zweites Anschlussstück (5, 6), die dazu bestimmt sind, den elektrischen Anschluss der Vorrichtung (1) an die elektrische Anlage zu gewährleisten,
    - mindestens ein erstes leitendes Element (10), das elektrisch an die erste Klemme (3) der Schutzkomponente angeschlossen ist, und ein zweites leitendes Element (11), das elektrisch an das erste Anschlussstück (5) angeschlossen ist, wobei das erste und das zweite leitende Elemente (10, 11) elektrisch miteinander verbunden sind,
    - mindestens ein drittes leitendes Element (12), das elektrisch an die zweite Klemme (4) der Schutzkomponente angeschlossen ist, und ein viertes leitendes Element (13), das elektrisch an das zweite Anschlussstück (6) angeschlossen ist, wobei das dritte und das vierte leitende Elemente (12, 13) miteinander verbunden sind,
    dadurch gekennzeichnet, dass die Vorrichtung ein erstes Gestell (14) umfasst, das einen ersten Zwischenraum (14') mit durch die Konstruktion festgelegter Dimension begrenzt, in dem zumindest teilweise das erste leitende Element (10) und das zweite leitende Element (11) angeordnet sind, wobei die Dimension des ersten Zwischenraums (14') derart ist, dass die erste und zweite leitenden Elemente miteinander in Kontakt gehalten werden, um die elektrische Verbindung zwischen ihnen zu gewährleisten, und dass die Vorrichtung ein zweites Gestell (15) umfasst, das einen zweiten Zwischenraum (15') mit durch die Konstruktion festgelegter Dimension begrenzt, in dem zumindest teilweise das dritte leitende Element (12) und das vierte leitende Element (13) angeordnet sind, wobei die Dimension des zweiten Zwischenraums derart ist, dass die dritte und vierte leitenden Elemente miteinander in Kontakt gehalten werden, um die elektrische Verbindung zwischen ihnen zu gewährleisten.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das erste leitende Element (10) und das zweite leitende Element (11) in das erste Gestell (14) eingezwängt sind, und/oder dass das dritte leitende Element und das vierte leitende Element in das zweite Gestell (15) eingezwängt sind.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das erste leitende Element (10) und das zweite leitende Element (11) im Wesentlichen locker in das erste Gestell (14) eingepasst sind, und/oder dass das dritte leitende Element und das vierte leitende Element im Wesentlichen locker in das zweite Gestell (15) eingepasst sind.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ein Gehäuse (7) umfasst, in dem die Schutzkomponente (2) angeordnet ist, und dass das erste Gestell (14) und/oder das zweite Gestell (15) mit dem Gehäuse aus einem Stück sind.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schutzkomponente (2) von einem Varistor gebildet ist.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das erste Gestell (14) zwei Wände (14A, 14B) umfasst, die sich im Wesentlichen parallel zueinander erstrecken und den ersten Zwischenraum (14') begrenzen, wobei die Dimension des ersten Zwischenraums (14') in Ruhestellung nun gleich dem Abstand d1 zwischen den Wänden (14A, 14B) ist.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das erste und/oder das zweite Gestell (14, 15) einen Reiter umfasst, der einen im Wesentlichen U-förmigen Querschnitt aufweist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das erste und das zweite leitende Element (10, 11) von einem ersten bzw. einem zweiten leitenden Blättchen (16, 17) gebildet sind, wobei die Blättchen Stärken in Ruhestellung aufweisen, die mit e1 und e2 bezeichnet sind.
  9. Vorrichtung nach Anspruch 6 und Anspruch 8, dadurch gekennzeichnet, dass die Dimension in Ruhestellung d1 des ersten Zwischenraums (14') im Wesentlichen geringer als die Summe e1 + e2 der Stärken in Ruhestellung des ersten und des zweiten leitenden Blättchens (16, 17) ist.
  10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die elektrische Verbindung zwischen dem ersten leitenden Element (10) und dem zweiten leitenden Element (11) ohne Löten oder Schweißen erfolgt.
  11. Verfahren zur Herstellung einer Überspannungsschutzvorrichtung für eine elektrische Anlage, umfassend:
    - mindestens eine Schutzkomponente (2), die mindestens eine erste und eine zweite Versorgungsklemme (3, 4) aufweist;
    - mindestens ein erstes und ein zweites Anschlussstück (5, 6), die dazu bestimmt sind, den elektrischen Anschluss der Vorrichtung (1) an die elektrische Anlage zu gewährleisten,
    - mindestens ein erstes leitendes Element (10), das elektrisch an die erste Klemme (3) der Schutzkomponente angeschlossen ist, und ein zweites leitendes Element (11), das elektrisch an das erste Anschlussstück (5) angeschlossen ist,
    - mindestens ein drittes leitendes Element (12), das elektrisch an die zweite Klemme (4) der Schutzkomponente angeschlossen ist, und ein viertes leitendes Element (13), das elektrisch an das zweite Anschlussstück (6) angeschlossen ist,
    dadurch gekennzeichnet, dass es einen Schritt (a) umfasst, bei dem zumindest teilweise in einen ersten Zwischenraum (14') mit durch die Konstruktion festgelegter Dimension, der von einem ersten Gestell (14) begrenzt ist, das erste leitende Element (10) und das zweite leitende Element (11) eingesetzt werden, so dass die ersten und zweiten leitenden Elemente (10, 11) miteinander in Kontakt gehalten werden, um eine elektrische Verbindung zwischen ihnen zu gewährleisten, und dass es einen Schritt (b) umfasst, bei dem zumindest teilweise in einen zweiten Zwischenraum (15') mit durch die Konstruktion festgelegter Dimension, der von einem zweiten Gestell (15) begrenzt ist, das dritte leitende Element (12) und das vierte leitende Element (13) eingesetzt werden, so dass die dritten und vierten leitenden Elemente (12, 13) miteinander in Kontakt gehalten werden, um eine elektrische Verbindung zwischen ihnen zu gewährleisten.
  12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass der Schritt (a) einen Unterschritt (a1) umfasst, bei dem das erste leitende Element (10) und das zweite leitende Element (11) fest in das erste Gestell (14) eingesetzt werden.
  13. Herstellungsverfahren nach Anspruch 12, dadurch gekennzeichnet, dass der Unterschritt (a1) eine Phase (a1') umfasst, bei der das erste Gestell (14) elastisch verformt wird, um die Dimension des ersten Zwischenraums (14') zu vergrößern.
  14. Herstellungsverfahren nach Anspruch 13, dadurch gekennzeichnet, dass der Unterschritt (a1) eine Phase (a1") umfasst, bei der das erste und/oder das zweite leitende Element beim Einsetzen der leitenden Elemente (10, 11) in das erste Gestell (14) elastisch verformt werden.
  15. Herstellungsverfahren nach einem der Ansprüche 11 bis 14, dadurch gekennzeichnet, dass es einen Schritt (c) umfasst, bei dem ein Gehäuse (7) hergestellt wird, das dazu bestimmt ist, die Schutzkomponente (2) aufzunehmen, so dass das erste Gestell (14) und/oder das zweite Gestell (15) mit dem Gehäuse aus einem Stück sind.
EP07356029A 2006-02-24 2007-02-23 Vorrichtung zum Schutz gegen Überspannungen mit nahtlosen Kontakten und entsprechendes Herstellungsverfahren Not-in-force EP1826794B1 (de)

Applications Claiming Priority (1)

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FR0601680A FR2897991B1 (fr) 2006-02-24 2006-02-24 Dispositif de protection contre les surtensions avec contacts sans soudure et procede de fabrication correspondant

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EP1826794A1 EP1826794A1 (de) 2007-08-29
EP1826794B1 true EP1826794B1 (de) 2011-01-19

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DE102012201640A1 (de) 2012-02-03 2013-08-08 Panasonic Corporation Isolationsumformer mit modulierter Signalübertragung
CN115394612B (zh) * 2022-10-26 2023-01-06 广东米勒电气有限公司 一种基于数字隔离的分合闸在线监测断路器及其工作方法

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US3660799A (en) * 1969-06-17 1972-05-02 Honeywell Inf Systems Connector device
US4966563A (en) * 1989-04-11 1990-10-30 Rogers Corporation Bus bar tab connector
JP2512887B2 (ja) * 1991-09-17 1996-07-03 三菱マテリアル株式会社 サ―ジ吸収器
US5162765A (en) * 1991-12-23 1992-11-10 North American Philips Corporation Adjustable magnetic tripping device and circuit breaker including such device
US6274833B1 (en) * 2000-02-18 2001-08-14 Siemens Energy & Automation, Inc. Plug-in trip unit joint for a molded case circuit breaker
DE10120677B4 (de) * 2001-04-27 2010-11-04 Siemens Ag Modulares Reiheneinbaugerät
FR2846478B1 (fr) * 2002-10-25 2004-12-24 Schneider Electric Ind Sas Dispositif de protection contre les surtensions a electrode mobile

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US20070217107A1 (en) 2007-09-20
EP1826794A1 (de) 2007-08-29
CN101038805B (zh) 2011-08-24
FR2897991B1 (fr) 2008-05-09
CN101038805A (zh) 2007-09-19
DE602007012000D1 (de) 2011-03-03
US7821757B2 (en) 2010-10-26
ES2360187T3 (es) 2011-06-01
FR2897991A1 (fr) 2007-08-31
ATE496385T1 (de) 2011-02-15

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