WO2020187589A1 - Dispositif de sécurité - Google Patents

Dispositif de sécurité Download PDF

Info

Publication number
WO2020187589A1
WO2020187589A1 PCT/EP2020/055885 EP2020055885W WO2020187589A1 WO 2020187589 A1 WO2020187589 A1 WO 2020187589A1 EP 2020055885 W EP2020055885 W EP 2020055885W WO 2020187589 A1 WO2020187589 A1 WO 2020187589A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
tear
sections
housing
separating
Prior art date
Application number
PCT/EP2020/055885
Other languages
German (de)
English (en)
Inventor
Rudolf HAUTMANN
Josef Fleischmann
Original Assignee
Panasonic Industrial Devices Europe Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Industrial Devices Europe Gmbh filed Critical Panasonic Industrial Devices Europe Gmbh
Priority to EP20709557.1A priority Critical patent/EP3942587A1/fr
Publication of WO2020187589A1 publication Critical patent/WO2020187589A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/006—Opening by severing a conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H2039/008—Switching devices actuated by an explosion produced within the device and initiated by an electric current using the switch for a battery cutoff
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets

Definitions

  • the invention relates to a safety device for interrupting an electrical connection, comprising an electrical conductor with at least a first and a second connection contact, the conductor changing its direction several times between the first and the second connection contact, so that the conductor at least two geometrically to be interrupted having juxtaposed, electrically verbun in series dene tear-off sections.
  • the safety device further comprises a housing in which at least the two tear-off sections of the conductor to be interrupted are received. It further comprises a separation actuator which is designed and arranged relative to the conductor in order to separate the conductor by tearing off at least at the two tear-off sections when the separation actuator is triggered.
  • a so-called arc can form above a certain current strength and / or voltage. If the electrical potential difference (voltage) and current density are sufficiently high, this occurs through impact ionization between the two conductor ends, which are interrupted or separated from one another. The electric current continues to flow through the gas (e.g. air) between the separated conductor ends, which is ionized in the process, and the gas becomes electrically conductive through the ionization of the particles (atoms or molecules).
  • the current density is generally defined as the ratio of the current strength and the cross-sectional area available to the current.
  • An arc in the field of the invention a negative phenomenon in the sense of an accidental arc
  • An arc can therefore maintain an electrical connection in an electrical circuit, although the two conductor ends are actually no longer directly (physically) connected, since the conductor ends are already connected by a are separated from each other essentially air-filled gap.
  • the arc phenomenon becomes particularly problematic when the electrical circuit has to be forcibly interrupted for health reasons, for example in the event of an accident to avoid further consequential damage.
  • maintaining the connection between a battery or a rechargeable battery and an electric motor can result in a considerable health risk (including for those involved) due to electric shock in the event of an accident.
  • a large number of different security and separation systems are already known.
  • WO 2017/032362 A1 describes a circuit breaker with the features mentioned at the beginning.
  • the connecting elements that establish a connection between a first and a second contact, together with an insulating medium and other components in a common interior space of the housing.
  • the entire interior space is contaminated or soiled with the isolator medium after it has been triggered.
  • parts of the isolator medium could also be located outside the housing after the disconnector has tripped. This increases the risk that surrounding components will be contaminated and - even if this would in principle allow other accident damage to the vehicle - simply replacing the disconnector is not sufficient to e.g. B. to put the vehicle back into operation.
  • the fuse device according to the invention for interrupting an electrical connection for example an electrical circuit
  • the electrical contacts e.g. B. two end portions of the conductor, by means of which the fuse device is connected in series with the other electrical components of an electrical circuit.
  • a battery as a power source and an electric motor can already form a closed electrical circuit.
  • the conductor changes its direction several times between the first and the second connection contact, so that the conductor has at least two tear-off sections to be interrupted, geo metrically arranged next to one another, electrically connected in series having.
  • a tear-off section can only be a section in the course of the relevant conductor, at or in which section the conductor is preferably torn off or separated if, as explained later, for example, a predetermined tear-off point has been incorporated.
  • the course of the conductor between the first and the second connection contact can run in a loop in at least one section or have at least one U-shaped section in which the two legs of the U-shaped section are preferably essentially parallel to one another and geometrically next to one another are arranged.
  • the safety device also has a housing in which at least the two tear-off sections of the conductor to be interrupted are accommodated.
  • the safety device comprises a disconnection actuator, preferably a pyrotechnic disconnection actuator, which is designed and arranged relative to the conductor to close the conductor by tearing off the conductor when the disconnection actuator is triggered, preferably when a triggering signal is received, at least at the two tear-off sections separate.
  • the isolating actuator is arranged relative to the conductor in such a way that when the isolating actuator is triggered, the conductor is torn off by the action of the isolating actuator in at least one tear-off section, but preferably in both tear-off sections at the same time.
  • the safety device comprises at least two sealed arc extinguishing chambers. These are each arranged at least in the area of the tear-off sections of the conductor. They are designed to seal (shield) an arc that may arise in a free space (i.e. between the two conductors separated by the tearing off) from the outside against the surroundings of the arc chamber. "Sealed against the surroundings of the arc chamber" is such Understand that processes within the arc-extinguishing chamber potentially occurring when torn off cause no harmful effects outside the arc-extinguishing chamber. Besides that, no extinguishing material should be able to escape.
  • the extinguishing material is preferably a substance or a material that has electrically insulating properties and is hardly or very poorly inflammable or combustible. A more detailed description of the extinguishing material and its function is given below. It is located at least in and / or around the area of the tear-off sections within the arc-extinguishing chambers. Preferably, the arc extinguishing chamber is essentially filled with the extinguishing material except for the conductor itself.
  • the conductor is, as usual, initially - i. H. before the disconnection actuator is triggered - in a first position or in an "initial position".
  • this starting position or "normal operating position”
  • the undestroyed conductor is, as mentioned above, e.g. B. integrated in an electrical circuit in the form of a series circuit via the first and second connection contact, so that (in "control mode") there is a closed circuit, for example between the battery and the electric motor.
  • the current flows through the electrical conductor of the safety device during normal operation, with a current flow not being impaired.
  • the torn off moving ladder section is in a second position or in a "disconnected position".
  • the electrical circuit between a first and a second connection contact is interrupted as intended.
  • a movable tear-off part of the conductor can be torn out between the connection contacts. This can preferably be moved into the disconnected position in a disengagement space in the housing which is specially provided for this purpose and is separate from the arc extinguishing chambers, as will be explained later.
  • the conductor can be interrupted simultaneously in the context of the tear-off movement at several tear-off sections arranged geometrically next to one another. This advantageously ensures that only a fraction of the total voltage used is applied to the individual tear-off sections.
  • the total voltage applied to the conductor is divided according to the number of tear-off sections used. As a result, for example, if a total of two tear-off sections are used, only half the total tension is applied to each of the two tear-off sections when they tear off. In this way, potentially arising arcs between the separated conductor parts are already weakened or even an arc is prevented from forming.
  • the conductor now runs through an additionally sealed, separate arc extinguishing chamber in the housing, at least in the area of the tear-off sections, it can be ensured that the electric arc is held and operated within the arc extinguishing chamber. can be extinguished particularly well and quickly using the extinguishing material located there. Since these arc extinguishing chambers are arranged as sealed, separate chambers within the housing, the probability that extinguishing material will get outside of the housing when triggered is further reduced. If this allows other accident damage to the vehicle in principle, the vehicle can be put back into operation immediately by simply and quickly exchanging the safety device. In particular, cleaning of the surrounding area would not be necessary.
  • a method according to the invention for manufacturing (manufacturing method) a fuse device for interrupting an electrical connection comprises at least the following steps:
  • an electrical conductor with at least a first and a second connection contact is provided or produced, the conductor changing its direction several times between the first and the second connection contact, so that the conductor at least two to be interrupted, geometrically arranged next to each other, electrically connected in series Has tear-off sections.
  • the conductor is bent and / or shaped in such a way that a desired tear-off point is introduced at a defined point in the tear-off sections, and the shaping of the course of the conductor ensures that these tear-off sections at which the conductor is separated in the context of a tearing movement in the event of a fuse, although they are electrically connected in series (in the simplest case it can only be sections of the same conductor), but are arranged geometrically next to one another. This means that, as mentioned above, in the event of a tear-off movement, the two tear-off sections are separated, if possible, essentially simultaneously, so that only half the total stress is applied in each of the two tear-off sections.
  • a housing with at least two arc extinguishing chambers is provided or manufactured and the electrical conductor is inserted into the housing, so that at least the two tear-off sections of the conductor to be interrupted are accommodated in the housing, the two tear-off sections of the conductor each through an arc extinguishing chamber which is sealed off from an environment.
  • the housing is so z. B. manufactured or shaped so that it receives or surrounds the electrical conductor so that at least the two tear-off sections of the conductor in Arcing chambers are located, which are separated from the other areas in the housing within the housing by walls.
  • seals are arranged in the course of the conductor in front of and behind the tear-off sections to be interrupted in order to seal the passage through the walls. Possible shapes and types of seals are explained in more detail below.
  • the housing advantageously encloses the conductor in such a way that the conductor runs predominantly within the housing, the connection contacts of the conductor e.g. B. extend or protrude from the housing and can be integrated very easily in series in an electrical circuit.
  • a disconnect actuator is provided or manufactured. This is arranged relative to the Lei ter such. B. also mounted in or on the housing to separate the conductor (when Emp catching a trip signal in the case of a fuse) when the isolating actuator is triggered at least at the two tear-off sections by tearing off.
  • the isolating actuator can be used in the housing in a “isolating actuator chamber” specially designed for it.
  • the isolating actuator could preferably be in the form of an independent purchased part and be acquired and used in a state ready for assembly. This will be explained later.
  • the two Lichtbo formed by the housing are filled with an extinguishing material.
  • the housing is then preferably closed.
  • a basic housing body in which the above-mentioned Components are assembled and the extinguishing material is filled in closed with a housing cover.
  • the extinguishing material which is located in the arc extinguishing chambers, can be held captive within the arc extinguishing chamber as well as an accidental leakage, e.g. B. during assembly of the safety device can be prevented.
  • the sequence of the method steps described above for assembling the individual components of the security device is arbitrary, provided that the individual components were either provided or produced beforehand so that they are available for assembly. Likewise, the components can also be provided at least partially assembled. For example, the Heads with already attached seals are fully formed, provided with intended tear-off points and made available for insertion into the housing.
  • partition walls are preferably already fully formed.
  • the “partition walls” of the arc extinguishing chambers can be separated from the other areas in the housing, e.g. B. a separating actuator chamber, already in the manufacture of the housing in one operation with abandonedbil det or shaped, z. B. in an injection molding process.
  • individual partition walls could also be used later if this appears favorable in terms of production technology.
  • the housing base body of the housing can be sealed with the cover element after it has been filled, so that subsequent improper opening by a third party, for example for manipulation purposes, can be prevented.
  • the seals can also be provided or delivered in a prepared state.
  • the seals can also be injected or foamed in-situ directly around or on the conductor by means of a so-called “formed in-place” (or “formed in-place foam gasket” (FIPFG)) method in an additional process step the conductor can be overmolded.
  • the seals can also be made in situ using the “form-in-place” method or directly in the housing using the 2K injection molding process. This will be explained in more detail later.
  • a fuse device according to the invention in an electrically operated vehicle (electric car or electric vehicle, B (EV) for short) can in particular interrupt an electrical connection between the components of the vehicle that require electricity, in particular the vehicle's electric motor or electric drive, to a battery storage system or other current / voltage sources.
  • an unwanted current flow emanating from a battery storage system can preferably be prevented immediately after an accident. For example, this can prevent a current flow to a battery storage system from continuing, which could possibly cause a spark for example, a flammable liquid leaking out of the accident could ignite.
  • the safety device is advantageously designed so that it is suitable for high direct and alternating currents at high voltages, as occur in modern electric vehicles.
  • the safety device can be designed for voltages above 100 V and also for the interruption of direct currents.
  • the construction is also designed so that the current can be safely separated, preferably with a current strength greater than 2000 A, particularly preferably with a current strength greater than 10000 A.
  • the construction of the safety device can in principle also be used for electrical connections that are designed for medium voltages in the sense of the VDE regulations, namely for voltages of more than 1kV.
  • the safety device mentioned at the outset triggers when it is supposed to trigger, it could for example be coupled to a safety device usually installed in the vehicle with a signal transmitter (or sensor) so that, in the event of an accident, it can be triggered at the same time or triggers immediately after the safety device.
  • a signal transmitter or sensor
  • a vehicle according to the invention has at least one electric motor for driving the vehicle and a safety device according to the invention.
  • the vehicle can be any electric car, an electric truck, an electric motorcycle, an electric boat, an aircraft (or aircraft) or the like.
  • the safety device is not limited to use in one of the aforementioned electrically powered vehicles, but can generally be used to interrupt an electrical circuit with any battery storage system, e.g. B. a battery or a rechargeable battery, so preferably also in a machine or a robot or a battery storage system, which is simply only generally used for a power supply for intermediate storage, such. B. can be used as a local storage system for a solar system.
  • the electrical conductor of the safety device could have any cross-section transversely to its direction of travel, z. B. a round massive cross section.
  • the conductor is preferably designed as a “flat conductor”. In other words, it has a substantially flat cross section. I.e. the cross section of the flat conductor comprises a shorter and a longer side.
  • a flat conductor is also only referred to as a “conductor” for short.
  • the conductor is bent several times in its course, preferably over the longer cross-sectional side or “flat side”, so that, for example, a U-shaped conductor section is created. This U-shape can be seen in a plan view of the shorter cross-sectional side of the conductor.
  • the two legs of the U-shaped section are thereby preferably arranged essentially parallel to one another and geometrically next to one another. These legs can therefore form the tear-off sections which, as mentioned, are each provided with at least one predetermined tear-off point.
  • the conductor is weakened at such a “predetermined tear-off point”, so that from a desired tensile stress along its main course direction it first tears off at this predetermined breaking point or is first severed.
  • the tensile stress required for the separation is brought about (as mentioned) by means of the separation actuator.
  • the conductor can be mechanically weakened at such a predetermined breaking point, in particular a predetermined breaking point.
  • a predetermined breaking point I.e. he can z. B. have a cross-sectional constriction (thinning) at least at this point.
  • the conductor preferably has a “perforation line” transverse to its direction at a predetermined breaking point, in particular a predetermined tear-off point. This corresponds to a mechanical weakening in the form of several almost adjacent holes along a line that extends over the entire longer cross-sectional side. Although this deliberately adversely affects the tensile strength of the conductor at this point, the external dimensions of the conductor do not have to be reduced.
  • a further weakening hole can be arranged in the conductor immediately before and after a perforation line. This is preferably arranged closer to one of the shorter cross-sectional sides of the conductor, so that the tearing of the perforation line begins from the opposite side.
  • the conductor has at a predetermined tear-off point perpendicular to its course a perforation line with at least two - before and after - diamond-shaped incorporated holes or breakthroughs, the diamond-shaped breakthroughs being asymmetrical, ie. H. are arranged closer to one of the shorter cross-sectional sides of the conductor. They can have the effect that, due to uneven expansion of the material and the resulting uneven force, tearing off at the intended tear-off points is favored. Other shapes of the holes or breakthroughs on the Perfo rationsline in the head are also possible.
  • the perforation lines and / or the above-mentioned additional weakening holes in the conductor and / or other - to be described later - holes or openings in the conductor can, for. B. are preferably punched out or incorporated in another way. You can e.g. B. can also be cut out by means of a suitable laser.
  • the weakening of a predetermined tear-off point could also be achieved by making the conductor from a more easily tearable material in the area of the predetermined tear-off point (i.e. a material which tears more quickly and easily under tension) than in other areas thereof.
  • a more easily tearable material in the area of the predetermined tear-off point (i.e. a material which tears more quickly and easily under tension) than in other areas thereof.
  • This can be useful if the production of the conductor from several pieces would be associated with less effort and lower costs. This is particularly useful if the majority of the conductor would consist of a cheaper, but also more tensile material.
  • Possible more cost-effective and more tensile materials for the main part of the conductor could, for example, be aluminum or special metal alloys suitable for this purpose, whereas copper and silver are suitable for the tear-off sections with the intended tear-off points.
  • connection contacts of the conductor There are various possibilities for the design of the connection contacts of the conductor.
  • the first and second connection contacts of the conductor are preferably located outside the housing of the safety device, so that the safety device can be installed in a closed state of the housing when installing a new device or retrofitting it in an existing system.
  • the two connection contacts of the fuse protection device which protrude, so to speak, a piece from the housing of the fuse device, can be shaped almost as desired.
  • connection contacts are preferably each formed with at least one hole in cross section, so that they can be connected, for example, with a screw or the like. can be permanently connected or clamped in an existing circuit.
  • the two connection contacts are designed with a hole in such a way that, for example, a clamping shoe can be used for clamping contact. This enables a new installation or retrofitting of the safety device in an existing circuit by means of simple and quick terminal contact. Furthermore, this type of clamping ensures that the safety device always remains connected in an electrical circuit in the event of a rule and does not come off easily during vehicle operation.
  • the arc extinguishing chambers are sealed. There are also various options for this.
  • one, particularly preferably each, arc extinguishing chamber has at least two seals, one seal each at each of the two entry points of the conductor into or out of the relevant arc extinguishing chamber.
  • the seals at the entry points of the arc extinguishing chambers are preferably formed or shaped in such a way that neither significant extinguishing material nor an arc emerges from the arc extinguishing chambers during operation.
  • each of the seals expediently has a through opening for the conductor.
  • This is designed to match the conductor cross-section, so that it still remains movable along its main direction, but is permanently sealed as tightly as possible - with a constant cross-section along the conductor section moving through the seal.
  • the through opening therefore preferably has a predetermined clear dimension which is designed to be minimally smaller than an external dimension of the conductor, so that in any case the seal is particularly close to the conductor, too if the clear dimension achieved with a specific seal should turn out to be slightly larger than the specified clear dimension in individual cases, possibly due to manufacturing reasons (within the scope of the tolerances).
  • the conductor At least along the conductor section moving through the seal, the conductor preferably also has a uniform, smooth surface so that it slides smoothly through the through-openings of the seals during the tear-off movement.
  • a seal preferably comprises an elastic and / or an electrically insulating material. It is particularly preferably a rubber seal or a device made of a rubber-like elastic material. Most preferably, the seal is made of a heat-resistant material, so that its shape does not change in the event of the potential formation of an arc, nor is its material damaged in such a way that the sealing ability of the seal could possibly be impaired. This ensures that the arc extinguishing chamber remains sealed off from an environment.
  • Preferred materials for an elastic seal which is, for example, assembled by hand or preferably by machine, are acrylonitrile-butadiene rubber, ethylene-propylene rubber, silicone rubber or fluorine rubber.
  • thermoplastic polymers are preferably used as materials, such as.
  • a seal can be applied or introduced in-situ, as mentioned above in the manufacturing process, for example using the so-called “form in place” method directly on the conductor or on the housing.
  • a polymer such as. B. Polyurethane can be used.
  • one, preferably each, seal forms a form-fitting seal with an associated wall section of the housing Connection.
  • These wall sections are z. B. each in the area of the entry points len of the conductor in the arc extinguishing chamber.
  • Such wall sections into which a seal is inserted through which the conductor runs are also referred to below as “passage walls” of the arc extinguishing chamber.
  • Such a form fit between the seal and the passage wall is preferably a tongue and groove connection or (as particularly preferred) a Spun extension.
  • connection partners components
  • two connection partners are positively connected to each other so that there is sufficient shear strength perpendicular to this connection.
  • one of the two connection partners has a groove at the connection point and the other has a tongue, so that when the two connection partners are connected, the tongue fits positively into the groove.
  • a tongue-and-groove connection is a connection between two components in which both connec tion partners have a groove at the connection point, which is positively connected by means of an additional tongue in the form of a third component.
  • the wall sections or through walls each have recesses or slots which are adapted to the outer shape and dimensions of the conductor. Since the tear-off movement of the conductor ensures that the seal remains in place, the openings in the passage walls, in which the seals can be arranged, can preferably only be minimally larger than the conductor cross-section on the side facing away from the arc extinguishing chambers . As a result, the seals are held captive in the passage wall between the inside and outside at the entry points.
  • a through wall is therefore preferably designed in such a way that it has at least one single groove, preferably a double groove with a tongue located in between, at the opening for connection to the seal arranged therein.
  • the seal is formed with a cooperating simple groove, in which, with a suitable arrangement, the tongue of the double groove engages so that the conductor slips through the seal when the tear-off part of the conductor is torn off in the direction of the conductor run without to take the seal with you. This should keep the seals in place if the conductor tears away.
  • the wall sections or passage walls can, as mentioned, for. B. directly molded into the housing parts (e.g. injection molding) or separately in the housing a joined components. After closing the housing, e.g. B. the already mentioned assembly of the housing from a housing body and a housing cover, so arise through the matching housing walls in conjunction with the seals all around ge closed arc extinguishing chambers in each of which a tear-off section of the conductor is arranged as needed sealed.
  • the torn-off part of the conductor is preferably only moved out of the arc-extinguishing chamber so far that there is always an end section of the tear-off part on the breaking side (with an intact conductor cross-section) remains inside the arc quenching chamber. I.e.
  • the two respective ends of the conductor separated at the target tear-off points are preferably as far apart as possible in a disconnected position, but the two target-breaking end sections of the tear-off part of the conductor are still within the seal of the arc extinguishing chamber, so that the passage opening continues remains blocked (sealed) with the rest of the U-shaped tear-off part of the conductor.
  • the movement of the tear-off part of the conductor after it has been torn off by means of the disconnection actuator is also referred to below as “disengagement”.
  • the securing device can preferably comprise a non-conductive separating element. This is designed to connect the part of the conductor that is to be torn off with the isolating actuator, so that at least the tear-off part of the conductor is moved when the isolating actuator is triggered.
  • the separating element is a type of adapter, such as a pressure plate, between the separating actuator and the conductor, which creates a non-conductive connection between the two components and at the same time isolates the separating actuator from the conductor.
  • the pressure plate can preferably be arranged centrally parallel to the longitudinal side of the conductor cross-section between the isolating actuator and the conductor. As a result, it can push away the tear-off part of the conductor through the action of the isolating actuator without the isolating actuator touching the conductor directly.
  • a sufficiently large cavity, the already mentioned release space, is preferably located in the housing to accommodate the tear-off part of the conductor that moves (when the disconnection actuator is triggered).
  • This cavity is referred to as the release space because it accommodates at least the moving or disengaging tear-off part of the conductor, which runs between the two tear-off sections. It extends, for example, over an area within the housing that is adjacent to the connection contacts. adjoining the distant face of the housing.
  • the release space can be limited by the outer walls of the housing and only on one of its six sides essentially by the two arc extinguishing chambers and the separating actuator (or a separating actuator chamber for accommodating the separating actuator) preferably located in between.
  • the release space takes up an area within the housing that extends over the full width of the end faces and over a length of the longitudinal sides of the housing that is adapted to the separation distance.
  • the disengagement space therefore preferably has a “clear dimension” between its opposing boundaries or walls in the direction of the main course of the conductor (in the “disengagement direction” in which the tear-off part of the conductor moves), which is at most so large that In any case, the tear-off part of the conductor cannot be fully disengaged from the arc extinguishing chambers.
  • This "clear dimension" of the release space and the dimension of the broad side of the conductor cross-section results in a maximum separation distance between the respective end of the tear-off part and the associated end of the conductor part that remains when torn off (hereinafter referred to as "invariant" conductor part).
  • This separation distance should be at least large enough at the end of the Abr fabricatbewe supply in the separation position that a potentially created arc has a minimum length that favors a collapse of the arc.
  • the housing is particularly preferably designed in such a way that at least the walls of the release space or of the housing, which are ultimately intended to intercept the tear-off part of the conductor, are reinforced. These walls can have a reinforcement or stiffening, for example in the form of ribs and / or a double wall thickness.
  • the extinguishing material is expediently designed to extinguish or collapse an arc particularly quickly, so that the electrical connection is interrupted as quickly as possible. It is preferably a material which has particularly good pouring or flow properties. So it can not only be filled easily and without problems in the arc quenching chambers, but also flows particularly quickly into the free space, which is gebil det during the tear-off movement by the tear-off part of the conductor, which moves at least partially out of the arc-quenching chamber. Quartz sand is preferably used as the extinguishing material. For the sake of simplicity, the quartz sand can also only be referred to as sand below.
  • a resulting arc can in particular lead to (possibly also only partially) melting of the quartz sand, whereby maintenance energy is withdrawn from the arc.
  • an insulating glass plug made of melted quartz sand can also form, which can interrupt the arc.
  • the conductor can be provided with additional devices (as described later ben) so that an active burial of the free space between the intended break-off end sections of the conductor separated at a predetermined tear-off point can be achieved with quartz sand.
  • This active burial can increase the likelihood that there will be enough quartz sand in the resulting space quickly enough, which then has an insulating effect at the appropriate point between the separated conductor ends, for example fusing to form an insulating glass plug.
  • the safety device can preferably be designed in such a way that an arc that occurs in a tear-off section when the conductor is torn off inevitably runs essentially into the extinguishing material.
  • the conductor can have recesses, particularly preferably grooves, which extend longitudinally in its direction at least in the region of one of the tear-off sections.
  • the depressions result in or cause an increase in the surface area of the conductor cross-section, so that ultimately more extinguishing material is available in the area of the intended tear-off points directly on the conductor than with a smooth conductor without depressions.
  • the depressions can preferably be designed in the form of a meandering cross section of the conductor (transverse to its direction of extension). Thus, a possibly occurring arc will inevitably run through the extinguishing material, since this, of course, accordingly surrounds or wets the surface of the conductor provided with the depressions or grooves.
  • the safety device can preferably comprise at least one magnetic arrangement in order to deflect an arc into the extinguishing material.
  • This magnet arrangement for example at least one “blow magnet”, can be arranged in such a way that a potentially arising arc is deflected or pushed away by the Lorentz force of a magnetic field generated by the blow magnet.
  • a blow magnet used in this way is usually so called because its magnetic field "blows away" the particles in the arc, mostly electrons, so to speak.
  • the path of the arc is in any case lengthened and at the same time it can preferably be forced into the extinguishing material located to the side of the end sections of the conductor on the breakable side. Due to the longer path of the arc, its surface also increases. It therefore cools down more quickly and the air it ionizes loses its conductivity more quickly. In the event that an arc is formed, the magnet arrangement accordingly ensures that the extinguishing material in the arc extinguishing chamber is less melted together.
  • Such a blow magnet can be, for example, an ordinary bar magnet, typically made of neodymium, which generates at least one magnetic field of 50-100 mT. At least one magnet is preferably used, and a plurality of magnets and / or a horseshoe-shaped iron yoke are particularly preferably used. They are arranged between the two legs of the iron yoke in the area of its open side. In the gap that is created between the two magnets, a nearly homogeneous magnetic field can be generated. However, the (as homogeneous as possible) magnetic field is particularly preferably generated by an electromagnet, since its magnetic field does not weaken over time. If so desired, a separate magnet can be arranged for each of the arc extinguishing chambers.
  • the magnet arrangement can also be arranged on the outside of the housing, so that the magnetic field acts in the housing, but the components of the magnet arrangement are protected from the processes taking place inside the housing.
  • a housing exterior term arrangement of the magnet arrangement on the safety device simplifies both a new installation during manufacture and an exchange of a defective magnet.
  • almost every suitable, possibly existing magnet could be used functionally or, for example, a magnet could be reused after replacing an installed safety device. If there is already a magnetic field that would impair the effect of the magnet arrangement realise, a magnet arrangement can logically be obsolete or saved.
  • the securing device can preferably also comprise an extinguishing material moving device (or simply called “sand moving device”). This can serve to spend or transport sand during the disengagement or tear-off movement in the free space that results from the disengagement of the tear-off part of the Lei age from the arc extinguishing chambers after the tear-off. It also ensures that any arc that may arise will forcibly run through the sand.
  • extinguishing material moving device or simply called “sand moving device”.
  • the sand moving device is preferably designed in the manner of a “shovel”.
  • the shovel is preferably attached to the tear-off part of the ladder and can - according to the principle of a "plow" - be arranged in the area of the intended tear-off point so that there is a particularly large amount of sand in front of its "shovel surface". Consequently, during the tear-off movement, the sand in front of the shovel can be actively pushed or pulled into the free space.
  • a shovel could, for example, be made of the same material as the conductor and additionally be formed on the conductor directly during the production or provision of the conductor.
  • a second possible variant of the sand moving device can comprise a sand moving device with a simple belt.
  • the tape is in a relaxed th state before and after the target tear-off point within the arc extinguishing chamber attached to the conductor. I.e. it is in a loose initial state in the starting position from at least at the level of the target tear-off point in a semicircular shape in an Ab was arranged to the head.
  • the tape is tensioned between the tear-off part and the invariant conductor part when the tear-off part of the conductor is disengaged.
  • sand can be actively thrown or introduced into the intended tear-off point.
  • the tape runs in a tensioned state essentially parallel to the conductor without an electrical connection between the to produce two separate break-end end sections of the conductor.
  • the tape can, for example, be a heat-resistant “insulating tape” which in any case has a suitable tensile strength.
  • a heat-resistant, non-conductive tape could be used.
  • the tape could also be designed in the form of a hose around the conductor along the course of the conductor. This can be opened at least on one side, but otherwise all around in the manner and shape of a hose and also at least on two sides, essentially parallel to the two long sides of the arc chamber. It could z. B. can be used at least one side open hose that can be filled with sand.
  • the securing device can also preferably comprise a step-shaped or running ladder section in order to also ensure that additional shear forces are generated.
  • the course of the conductor can optionally have a step at a predetermined tear-off point. I.e. the course of the conductor is designed at least at the intended tear-off point (when viewed from above on the conductor course) in the manner of a “Heaviside” function, in order to deflect an arc into the sand that may arise during the tear-off movement or at least to specify its direction of extension.
  • the intended tear-off point can connect the two “tread surfaces” or “steps” of the conductor, which run or are aligned in its main direction of extension, for example at an angle, preferably vertically.
  • the conductor of the safety device can preferably also have a “target separation point” in its course, which is preferably arranged between the tear-off sections in a further “separation section” of the conductor.
  • This additional desired separation point ie the separation section, is particularly preferably located between the two tear-off sections of the conductor which are arranged essentially parallel to one another, geometrically next to one another.
  • This separating section is consequently arranged essentially perpendicular to the tear-off sections, since it does connects electrically in series. If the separation section is aligned or runs exactly perpendicular to the two tear-off sections, a final cutting of the conductor can be achieved particularly easily by simply punching through the conductor once more at the intended separation point as part of the tear-off movement .
  • the separation in the separating section is preferably carried out offset in time or delayed after the tearing off in the tear-off sections.
  • the conductor should be cut through at the intended separation point, especially before given, when the tear-off part of the conductor has at least a minimum distance from the invariant conductor part, so that no further arcing is formed at the intended separation point, since the total voltage already applied has been sufficiently reduced.
  • the conductor can be punched through at the intended separation point, for example, by means of a blade, a sharp cutting edge or a sharp wedge and, if necessary, a corresponding counterpart.
  • the safety device preferably comprises a separating device which interacts with the separating actuator.
  • the separating device has a non-conductive, wedge-shaped element which is designed to cut through the conductor at the intended separation point during a relative movement. It can, for example, be attached to an inside of the stirnsei term outer wall of the release space within the housing.
  • the separating device comprises at least two interacting elements which, when one of the two or both elements move relative to one another, cause a separation as part of the tear-off movement.
  • the two elements are designed in such a way that, when they strike or collide with one another, they together create a preferably permanent interruption in the conductor. Both elements can have a cutting edge or one of the two can be designed with a cutting edge and the other with a surface for cutting. I.e. When it hits, the conductor running in between is cut through, so to speak.
  • the safety device preferably comprises a separately encapsulated, pyrotechnic isolating actuator. If desired, this can also be purchased as a separate, independent purchased part, independently of the safety device. In this case, use can also be made of already existing, in particular standardized, pyrotechnic actuators that would otherwise be used for other purposes. serve such as B. to trigger safety devices, seat belt tensioners, hood stands or the like.
  • a preferred isolating actuator has a cylindrical sleeve with a bolt with a piston section located therein, a propellant charge and an ignition device or ignition unit which is closed by means of a closure piece.
  • the sleeve is preferably a component made from steel.
  • the bolt is made of aluminum, for example.
  • a pyrotechnic propellant consists of a set of chemical substances in solid, liquid or gaseous form, which, as an energy carrier, strives for a large volume when activated and is thus able to move or shape an object.
  • the cylinder can for example also be partially implemented as part of the housing of the safety device, i. H. be integrated in the housing.
  • the isolating actuator and the above-mentioned pressure plate which presses against the tear-off part of the conductor that is to be torn off in the event of a trip, can be positively connected or coupled to one another.
  • they preferably have corresponding coupling elements.
  • These can be designed, for example, in the form of a front cylindrical (core) bore in the bolt of the separating actuator and a corresponding pin on the back of the pressure plate.
  • the bolt of the separating actuator could also form a part with the pressure plate, i. H. the bolt and the pressure plate are made in one piece.
  • FIG. 1 shows a perspective view (with the housing cover open) of a first exemplary embodiment of a securing device according to the invention in a starting position
  • Figure 2 is a perspective view of an electrical conductor of the safety device according to Figure 1
  • FIG 3 is a perspective view of a housing base body of the fuse device according to Figure 1,
  • FIG. 4 shows a perspective view of a housing cover of the safety device according to FIG. 1,
  • FIG 5 is a perspective view of a pressure plate of the securing device according to Figure 1,
  • FIG. 6 shows a perspective view of a seal of the securing device according to FIG.
  • FIG. 7 shows a longitudinal section of an isolating actuator (in an initial position) of the securing device according to FIG. 1,
  • FIG. 8 shows a plan view of the disconnect actuator (in a disconnected position after triggering) of the safety device according to FIG. 1,
  • FIG. 9 shows a perspective view of the safety device according to FIG. 1 in a disconnected position of the electrical conductor with the tear-off part disengaged
  • FIG. 10 shows another perspective view of the electrical conductor according to FIG. 9 with the tear-off part of the conductor disengaged with a schematic arc surrounded by an extinguishing material
  • FIG. 11 shows a perspective view of the safety device according to FIG. 1 with a closed housing
  • FIG. 12 shows a schematic representation of a second exemplary embodiment of a securing device according to the invention in an initial position
  • FIG. 13 shows an upright section through the electrical conductor according to FIG. 12 along the section line AA
  • FIG. 14 shows a schematic representation of a third exemplary embodiment of a securing device according to the invention in an initial position
  • FIG. 15 shows a schematic representation of a fourth exemplary embodiment of a securing device according to the invention in an initial position
  • FIG. 16 shows a schematic representation of a fifth exemplary embodiment of a securing device according to the invention in an initial position
  • FIG. 17 shows a schematic representation of a sixth exemplary embodiment of a securing device according to the invention in an initial position
  • FIG. 18 shows a schematic illustration of a seventh exemplary embodiment of a securing device according to the invention in an initial position
  • Figure 19 is an example of a schematic circuit diagram of a fuse device 1 according to the invention connected in series in an electrical circuit.
  • FIGS. 1 to 11 A first preferred exemplary embodiment of the securing device 1 according to the invention will now be described with reference to FIGS. 1 to 11, the securing device 1 being designed to interrupt an electrical connection V and with a first and second connection contact 101 in operation, as shown in FIG is placed in series in an existing electrical circuit.
  • the main components of this safety device 1 include a housing 11 with two arc extinguishing chambers 30 which are sealed off from an environment and which are filled with an extinguishing material 34, and an isolating actuator 60 (preferably a separately encapsulated, pyrotechnic isolating actuator).
  • an isolating actuator 60 preferably a separately encapsulated, pyrotechnic isolating actuator.
  • Other important areas within the housing 11, in which all other components are mounted, include two antechambers 25a, 25b, a separating actuator chamber 23 located longitudinally between the two arc extinguishing chambers 30, in which the separating actuator 60 is arranged, and an adjoining one at the end Release space 35.
  • the electrical conductor 100 is designed with a flat cross-section in accordance with the state shown in FIG. H. a cross section through the flat conductor 100 perpendicular to its direction VR has a shorter and a longer cross-sectional side.
  • the course direction VR is u. a. here indicated arbitrarily clockwise, but it could also run the other way round.
  • the conductor 100 is bent here at several points over its longer cross-sectional side, so that it changes its direction VR several times.
  • the bend takes place in such a way that the conductor 100 is essentially U-shaped in a “course plane” VE spanned by the course direction VR, which changes several times.
  • the “main direction” HVR of the conductor 100 is defined below as the direction VR of the two “legs” of the “U” in the plane VE.
  • the substantially U-shaped bent conductor 100 has at the free ends of the U-legs (also called “legs” for short) once again angled foot sections pointing away from the “U” so that including these foot sections in the course plane VE results in a square, right-angled "Q". As will be explained later, these foot sections serve as connection contacts 101.
  • a conductor 100 shaped in this way has two longitudinal sides arranged geometrically next to one another in the form of the two legs, a “closed” end face S connecting the two legs (which is formed by the “transverse bar“ 100d ”) and another opposite end face S opposite the closed end face S “Open” end face S '(the “U-opening”) with outwardly angled foot sections at the free ends of the U-legs.
  • the two parallel legs which are mainly referred to simply as tear-off sections 104a, 104b in the following, are each at a point near the bend to the foot sections (or connection contacts 101) in the form of a predetermined tear-off point 102, here specifically a perforation line 102 weakened.
  • the Perforationsli never 102 extends here perpendicular to the direction VR of the conductor 100 over its entire longer cross-sectional side between the two edges of the shorter transverse cut side.
  • the perforation line 102 begins or ends at the edge of the conductor 100 in each case with an open hole, e.g. B. with about half a hole.
  • the conductor 100 extends between the two parallel legs in a straight line perpendicular to its main direction HVR. To this end, it is correspondingly narrow at right angles to the main HVR direction, that is, almost angular, bent and / or shaped. In the middle between the two bends and in the middle with respect to the longer cross-sectional side of the conductor 100, a guide hole 106 is machined or punched in here in the course of the conductor 100.
  • connection contacts 101 serve as connection contacts 101, as mentioned. They are each provided with a “hole” or a circular central opening in the flat side of the conductor 100. With these holes, they can be integrated and secured in a series in an electrical circuit in a particularly simple manner for operation using appropriate clamping shoes, for example crimp cable clamping shoes, or by screws.
  • the different sections of the conductor 100 can also consist of a plurality of individual parts, which in any case, at least in a fully assembled state, form a continuous or continuously connected electrical conductor 100.
  • the conductor 100 comprises two parts 100s, 100d connected by the intended tear-off points 102, which parts divide from one another in the course of a tear-off movement AB (see FIG. 9).
  • a part 100s is essentially immovably mounted in the housing 11 (see, for example, FIG. 9 explained later) and is therefore shown in FIG Also referred to below as the “invariant ladder part” 100s, since it behaves statically in the context of the tear-off movement AB. It comprises the two sections of the conductor 100, which each extend between the connection contacts 101 and the intended tear-off points 102. In the disconnected position P2, as shown in FIG. 9, these invariant conductor parts 100s are no longer even indirectly connected via the remaining conductor part 100d which connects the two parts in the event of triggering after being torn off.
  • This is in turn divided into two sections: In the already mentioned crossbar 100d "of the tear-off part 100d between the two legs of the conductor 100, which runs perpendicular to the main direction HVR, and in the two breakage-side end sections 100d 'of the tear-off part 100d, which correspond to the two moving "ends" torn off at the predetermined breaking point or predetermined tear-off point 102.
  • the tear-off part 100d of the conductor 100 is therefore, after the tear-off movement AB, at a separation distance x from the invariant conductor part 100s in a second position or in a separation position P2.
  • the “entire” separation distance is added up from the two individual separation distances x between the conductor parts 100s, 100d, which are separated at the intended tear-off points 102.
  • housing 11 is described in more detail, which can be subdivided into a housing base body 21 according to FIG. 3 and a housing cover 41 according to FIG.
  • FIG. 11 shows the closed state of the housing 11. As can be seen here, the housing 11 is essentially cuboid.
  • the basic housing body 21 is correspondingly cuboid with a bottom side or base side G, with two longitudinal sides L and two end sides S, S '.
  • the housing base body 21 is open at the top here and can be closed by means of the housing cover 41, with a specially shaped cover inside D (as will be explained later with reference to FIG. 4) inwards into the basic housing body by 21.
  • Relative directional information such as “up”, “down”, “side”, “frontal”, “bottom”, “longitudinal” etc. refer here arbitrarily to the representation in the figures.
  • the housing 11 comprises a circumferential outer wall 12, which is defined by the outer walls of the housing base body 21 and the housing cover 41. Further details of the circumferential outer wall 12 are explained below.
  • the axis which runs centrally through the housing 11 parallel to the two longitudinal sides L is called the central axis MA.
  • the housing 11 is constructed in such a way that a longitudinal section along the central axis MA parallel to the longitudinal sides L of the housing 11 would result in two symmetrical, elongated halves.
  • the housing base body 21, as can be seen particularly well in FIG. 3, is accordingly symmetrically shaped and, roughly described, has a plurality of separate chambers or areas in its interior, which are in any case completely closed here on the basic side.
  • the (housing) areas already listed above are arranged in relation to one another as follows: Two antechambers 25a, 25b are arranged on one (the open) end face S ‘in two rectangular corner areas. In the direction of the other, opposite (the closed) end face S, this is followed by the two elongated, qua-shaped arc extinguishing chambers 30. These in turn are each arranged in the form of a cuboid strip or channel only on the inside along the circumferential outer wall 12 of the housing base body 21. Beyond the arc extinguishing chambers 30 on the side facing away from the antechambers 25a, 25b, the already mentioned “rear space” 35 adjoins over the entire width of the end face S of the housing base body 21. Starting from the release space 35, the separation actuator chamber 23 extends to the open end face S ‘opposite the release space 35, centrally between the arc extinguishing chambers 30 and the antechambers 25a, 25b.
  • the separating actuator chamber 23 is designed along the base side G on the inside of the housing with an upwardly open, semi-circular recess.
  • This recess in In the form of a “negative model” of the separating actuator 60 forms one half 28 of a separating actuator bearing in which the separating actuator 60, as can be seen in particular in FIG. 1, is stably supported and held in place.
  • the separating actuator chamber 23 is designed with suitably shaped walls 13a, 13b, which separate it from the arc extinguishing chambers 30, and further suitably shaped inner walls 14a, 14b which separate it from the antechambers 25a, 25b.
  • the walls on the inside up to about half the height - that is, half of the longer cross-sectional side of the conductor 100 from FIG. 1 - form the aforementioned semi-circular recess in the form of a negative model of the separating actuator 60.
  • “appropriately shaped” means that in each case the upper half of the inner sides of the separating actuator chamber 23 - in the form of the walls 13a, 13b and the inner walls 14a, 14b - run straight upwards and are parallel to the longitudinal sides L of the housing 11 . This achieves, as will be explained later, that a corresponding “negative mode” of the separating actuator 60, ie. H. the other half 48 of the isolating actuator bearing can be fitted to the inside of the cover D when the housing 11 is closed by means of the housing cover 41.
  • the separating actuator chamber 23 is designed to be open on both of its end faces. I.e. Be rich between the two antechambers 25a, 25b is a semicircular, upwardly open opening 29 in the circumferential outer wall 12 of the basic housing body 21, which, as will be explained later, is filled by a closure piece 65 of the separating actuator 60. On its other end face in an area between the two elongated arc extinguishing chambers 30, it is open with respect to the release chamber 35.
  • the release space 35 is otherwise, that is, on the other sides on which the separating actuator chamber 23 is not adjacent, enclosed all around by the circumferential outer wall 12 of the housing 11. This is, as can be seen in particular in FIGS. 1 and 11, in the area of the release space 35 on the outside of the end face S and the two corresponding sections of the longitudinal sides L with outer wall ribs 36 running parallel to the base side G. These ribs serve to stabilize or reinforce the circumferential outer wall 12 and are therefore arranged in particular on the frontal outer wall 12 in the direction of action of the separating actuator 60, as shown schematically in FIG. 19 with a large arrow - representing the direction of action or the separating actuator 60 .
  • the direction of action of the isolating actuator 60 here also corresponds to the main direction HVR of the conductor 100.
  • the release space 35 is separated from the arc extinguishing chambers 30 by two (relatively short) passage walls 15b, 15c.
  • the passage walls 15b, 15c are formed in an edge area on or near the circumferential outer wall 12 each with slots 33b, 33c adapted in shape and size to the conductor 100, in which the conductor 100 in the assembled state, as can be seen in FIG. is inserted.
  • the passage walls 15b, 15c run along a plane perpendicular to the central axis MA parallel to the closed end face S of the housing base body 21 and each extend between the circumferential outer wall 12 and the end-side opening between the release space 35 and the separation actuator chamber 23.
  • the base side G of the release space 35 is designed with inside, slightly raised, regularly juxtaposed guide webs 37 which each run parallel to the central axis MA. They serve to guide a pressure plate 112 (which, as explained later, holds the tear-off part 100d of the conductor 100), so that the pressure plate 112 has less contact surface with the base side G during the tear-off movement AB (see Figure 9) and thus less frictional resistance or sliding friction between the housing 11 and pressure plate 112 is made.
  • the two already mentioned, symmetrical pre-chambers 25a, 25b which are to be mirrored along the central axis MA, each form a cuboid sub-area of the housing base body 21. They are each formed by the base G and four side walls of the housing base body 21 and the inside D of the housing cover 41 give. As explained, they are arranged in the two corner regions of the securing device 1 opposite the release space 35.
  • the antechambers 25a, 25b each have outer wall slots 26a, 26b in the circumferential outer wall 12 of the basic housing body 21, through which the above-mentioned connection contacts 101 of the conductor 100 protrude from the housing 11 in the assembled state, as will be explained later .
  • the through walls 15a, 15d of the front chambers 25a, 25b to the respective arc extinguishing chamber 30 are each formed with slots 33a, 33d so that the conductor 100 can pass through here in the assembled state.
  • the antechambers 25a, 25b are separated by a straight outer side of the inner walls 14a, 14b.
  • These inner walls 14a, 14b are each arranged slightly offset outwards (away from the central axis MA) with respect to the walls 13a, 13b between the isolating actuator chamber 23 and the arc extinguishing chambers 30, whereby a step is formed. I.e. the distance between the two inner walls 14a, 14b of the antechambers 25a, 25b is slightly greater than the distance between the two walls 13a, 13b of the arc extinguishing chambers 30.
  • the antechambers 25a, 25b accommodate the conductor 100 and a plug 50a, 50b with a curved through-channel for the conductor 100 (explanation follows below), which is located on the inside D of the housing cover 41.
  • the slight offset of the inner walls 14a, 14b in the direction of the outer wall slots 26a, 26b creates space for circular recesses 24 in the basic housing 21 and for corresponding circular recesses 44 in the cover element 41, which, as shown in FIG. 1, has a circular projection 66 of the separation actuator 60.
  • the two arc extinguishing chambers 30 accordingly result from the walls 13a, 13b of the isolating actuator chamber 23, the through walls 15a, 15b, 15c, 15d and two parallel sections of the outer walls 12 along the length .
  • the arc extinguishing chambers 30 are only closed at the top by placing and fixing the housing cover 21 in a final assembly step and thus ideally completely sealed.
  • the four through walls 15a, 15b, 15c, 15d through which the conductor 100 enters or leaves the arc extinguishing chambers 30 each have wall sections which, in the manner of a bung 72, are used for form-fitting connection with the respective seal 71.
  • the bung 72 here comprises a plurality of essentially parallel supporting walls 31a, 31b, 31c, 31d, 32a, 32b, 32c, 32d, namely inside the arc extinguishing chambers 30 with a 45 ° bevel to the through wall 15a, 15b, 15c , 15d formed, "inner” support walls 31a, 31 b, 31c, 31 d, "middle” support walls, which form tongues 32a, 32b, 32c, 32d for the groove 73 of the associated seal 71, and "outer” support walls,
  • the “outer” support walls are formed here by the through walls 15a, 15b, 15c, 15d themselves, which, as mentioned above, are only recessed with slots 33a, 33b, 33c, 33d roughly adapted to the shape and size of the conductor 100. This means that the “outer” support walls are therefore very close to the conductor 100.
  • the housing cover 41 is shaped overall in such a way that it forms a cover-side termination to the housing base body 21. Between it and the housing base body 21, all components mounted in the housing 11 are appropriately held or included when it is fitted in the housing base body 21 during assembly.
  • the areas that are accommodated by the two antechambers 25a, 25b are each formed with a substantially cuboidal plug 50a, 50b adapted to the antechambers 25a, 25b with a curved through-channel for the conductor 100.
  • This consists of two elements that take up the course of the conductor 100 bent at right angles between them and each form a curve bent at right angles on the sides facing the conductor 100.
  • the passage channel of the plugs 50a, 50b is matched to the external dimensions 107 of the conductor 100 in such a way that there is a good fit in order to fix the conductor 100 in the housing 11 here.
  • elongated webs 45a, 45b, 45c, 45d are arranged on the housing cover 41, which are aligned perpendicular to the course of the conductor 100 and which fit precisely into a respective groove 73 of the seals 71 in the Passage walls 15a, 15b, 15c, 15d of the housing base body 21 grip fen (this groove 73 can be seen, for example, in Figure 6).
  • a further web 46 which runs perpendicular to the two webs 45b, 45c and is relatively higher, is formed near the peripheral edge 42. This serves to guide the conductor 100 on the outside as part of the tear-off movement, so that the tear-off part 100d of the conductor 100 is guided or guided in a straight line in the direction of the end face S on the outside of the housing.
  • further lower parallel guide webs 47 are located at regular intervals, as they are also arranged on the opposite base of the release space 35 in the housing base body 21. They serve to guide the pressure plate 112 with the tear-off part 100d of the conductor 100 on the cover side, so that there is as little sliding friction as possible.
  • the pressure plate 112 is guided along the longitudinal sides L, the base side G and the inside of the cover D so that it fits exactly in the direction of the outside face S of the release space 35.
  • a cover-side half 48 of the aforementioned separating actuator bearing is located in an area that is accommodated by the separating actuator chamber 23 of the housing base body 21 - essentially between the webs 45a, 45b, 45c, 45d.
  • the outer longitudinal sides of this half 48 of the isolating actuator bearing fit exactly on the inside into the straight continuation of the walls 13a, 13b and inner walls 14a, 14b on the housing base body 21.
  • the halves 28, 48 of the separation actuator bearing sit well on one another in the assembled state and thus form a cavity that is open on both ends and is precisely sealed by the edges of the two components 28, 48 lying on top of one another.
  • This cavity is designed in the interior in such a way that, as a “negative mode” of the separating actuator 60, it just offers space for receiving the separating actuator 60.
  • it has a semicircular recess 44 at the level of a piston section D1 (explanation follows below) of the separating actuator 60, which complements the semicircular recess 24 in the housing body 21 to form a suitable circular recess for the projection 66 of the separating actuator 60 .
  • This isolating actuator bearing 28, 48 ensures that the force of the isolating actuator 60 is transmitted as intended to the bolt 61 when triggered.
  • the two Depressions 24, 44 which receive the projection 66 of the separating actuator 60, prevent the separating actuator 60 from being able to unintentionally shoot out of the housing 11 at the rear.
  • the semicircular openings 29, 49 on the end face S 'remote from the release space 35 complement each other to form a circular opening which, as can be seen in FIG. 11, encloses the locking piece 65 of the separating actuator 60 when the housing 11 is closed, the locking piece 65 from is freely accessible at the rear (from outside the housing 11) and can be connected, for example, via electrical connections, as indicated in FIG. 19, to a signal transmitter which, in the event of a trigger, transmits the trigger signal AS to trigger the isolating actuator 60.
  • the signal generator can be connected to a sensor in the vehicle, which is coupled to a built-in safety device, a belt tensioner or the like, so that when triggered, for. B. the safety device also triggers the safety device 1.
  • the arrangement of the above-mentioned interacting components can also be interchanged if necessary, so that for example the antechambers 25a, 25b are arranged in the housing cover 41 and the plug 50a, 50b with a curved passage channel is placed in the housing base body 21.
  • the seals 71 are each formed with a through opening 75. This is designed with a clear dimension 78 which is adapted to an external dimension 107 of the cross section of the conductor 100. As a result, the conductor 100 can still just be moved along its course relative to the seal 71, but is otherwise sealed or tight in its course direction VR with respect to the surroundings of the arc extinguishing chamber 30.
  • the seals 71 which are adapted to the shape and size of the conductor 100, are formed along their outer edges with at least two circumferential tongues 74 and a groove 73 located between them.
  • the seal 71 is made in one piece, for example, it is positioned accordingly on the conductor 100 by sliding it on or pulling it open, so that in each case in the mounted position there is a seal 71 at the entry points E1, E2, E3, E4 of the arc arcing chambers 30 is located.
  • the seal 71 consists of two or more parts, since it is, for example, more favorable in terms of production or assembly, it is preferably applied from above, below or from the side at the entry points E1, E2, E3, E4 of the arc extinguishing chamber 30 on Conductor 100 assembled before the conductor 100, as will be explained later, is inserted into the housing base body 21 from above in a process step of assembly or production.
  • the conductor 100 could e.g. B. also be encapsulated in an injection molding process with a thermoplastic polymer to form a seal 71 at the appropriate points E1, E2, E3, E4 or a seal 71 could be injected in-situ on the housing 11 in a 2K injection molding process.
  • the already mentioned pressure plate 112 is arranged between the separating actuator 60 and the crossbar 100d ′′ of the tear-off part 100d.
  • the pressure plate 112 as shown in detail in FIG. 5, is essentially plate-shaped and adapted to the dimensions of the cross section of the conductor 100.
  • the pressure plate 112 serves to push away a part, in this case the tear-off part 100d of the conductor 100. So that the pressure plate
  • the 112 can transfer the pressure exerted on it by the isolating actuator 60 as intended to the tear-off part 100d of the conductor 100, the two end faces of the pressure plate 112, which are assigned to the tear-off part 100d of the conductor 100 or the isolating actuator 60, each include suitable connecting elements 113, 114, 115, 116.
  • a cylinder-shaped pin 114 is arranged centrally on the end face of the pressure plate 112 assigned to the separating actuator 60. This serves together with a kranzförmi gene or collar-shaped coupling element 113 protruding at a small distance around the pin 114 as a connecting element between the pressure plate 112 and a bolt 61 of the separating actuator 60.
  • a one-piece component consisting of the pressure plate 112 and the bolt 61, the Pin 114 and the coupling element
  • the 113 can be waived.
  • the pressure plate 112 facing the conductor 100 On the end face of the pressure plate 112 facing the conductor 100, the latter has a type of “countersunk strip” 116, with a strip-shaped projection 117 remaining on each of two edges (top and bottom in FIG. 5).
  • the conductor 100 In the countersunk strip 116, the conductor 100 is bordered or guided parallel to the direction VR on the base side and on the cover side on the two shorter cross-sectional sides.
  • a “nose” 115 which protrudes from the surface of the pressure plate 112 in the opposite direction of the pin 114, that is, in the direction of the tear-off part 100d of the conductor 100.
  • the nose 115 engages from the inside into the guide hole 106 which, as described above, is incorporated centrally between the two longitudinal legs of the conductor 100 in the connecting, closed end face S, i.e. in the tear-off part 100d of the conductor 100.
  • the countersinking strip 116 and the nose 115 form further connecting elements, which in turn guarantee an intended force transmission of the pressure onto the tear-off part 100d of the conductor 100.
  • the pyrotechnic disconnection actuator 60 which has already been mentioned several times and which is shown in FIG. 1 in the starting position P1 of the safety device 1 and in a tripped state in the disconnected position P2 of the safety device 1 in FIG. 9, is initially illustrated in the following using a longitudinal section through its longitudinal extension the starting position P1, as shown in Figure 7, described in more detail.
  • the isolating actuator 60 here has, as a “housing”, an elongated, hollow, cylindrical sleeve 64 with two open end faces and a total of two different inside diameters. On one end face (hereinafter “rear end face”) the sleeve 64 is closed with a closure piece 65. In front of it, in the direction of the other, “front” end face (also called “mouth area” in the following), there is an ignition device 62 and in front of it (optionally) a propellant 63 'which is located in a propellant chamber 63.
  • a bolt 61 which, when the propellant charge 63 'is triggered, is to be ejected explosively from the front, open end of the sleeve 64 with a front section (see the position of the bolt 61 in a disconnected position P2 shown in FIG. 8) to tear off the conductor 100 as described above (see the corresponding position of the conductor 100 in Figures 9 and 10).
  • this can be enough without additional propellant 63 'to shoot the bolt 61, for. B. if this itself contains an integrated propellant.
  • the bolt 61 has a piston section D1 at its rear end facing the propellant charge 63 ', the outer diameter k of which is precisely matched to an inner diameter h of the sleeve 64, so that the effect of the propellant charge 63' is transmitted to the bolt 61 in the best possible way when the propellant 63 'is ignited.
  • the bolt 61 has three further sections D2, D3, D4 with partially different outer diameters e, r, e.
  • the piston section D1 with the outer diameter k is followed by a piston-side sealing section D2 with a first outer diameter e, then a central section D3 with a second outer diameter r that is reduced compared to the first outer diameter e, and finally a mouth-side sealing section D4, again with the first outer diameter e on.
  • the first outer diameter e of the piston-side sealing section D2 and of the mouth-side sealing section D4 is adapted to a reduced internal diameter m, also called the mouth diameter, of the sleeve 64 in the mouth region.
  • the constricted mouth in relation to the outer diameter k of the piston section D1 of the bolt 61 ensures that the bolt 61 cannot under any circumstances be shot completely through the mouth out of the sleeve 64 in a proper state.
  • the outer diameter k of the bolt 61 does not drop abruptly or abruptly to the outer diameter e, but rather tapers conically to the smaller outer diameter e of the bolt 61, corresponding to the "transition" from the inner diameter h to the mouth diameter m of the sleeve 64 as can be seen in FIGS. 7 and 8. As a result, the bolt 61 is braked or dampened when the separation position P2 is reached.
  • a bore 67 or a blind hole is incorporated in the center.
  • the above-described pin 114 of the Separating element or the pressure plate 112 adapted to couple the pressure plate 112 with the bolt 61 well.
  • FIG. 9 shows the ideal state of a tripped safety device 1 in the disconnected position P2.
  • the tear-off part 100d of the conductor 100 is angeord net in a disengagement space 35 after the tear-off movement AB at a separation distance x from the invariant conductor part 100s.
  • FIG. 9 shows the ideal state of a tripped safety device 1 in the disconnected position P2.
  • the pressure plate 112 with its nose 115 is inserted into the guide hole 106 of the conductor 100 on the inside.
  • this assembly step is omitted, and the separating actuator 60 with bolt 61 and pressure plate 112 would be used instead.
  • the electrical conductor 100 is then provided with seals 71 at the locations described above.
  • the finished isolating actuator 60 is mounted or plugged on.
  • the components connected in this way are finally inserted into the housing base body 21 of the housing 11 from above (perpendicular to the profile plane VE).
  • the securing device 1 then has the state shown in FIG. 1 in the starting position P1.
  • the separation actuator 60 is preferably a purchased part, which conditions in other Einrichtun, for. B. can be used to trigger safety devices, belt tensioners, hood stands or the like.
  • the housing base body 21 of the securing device 1 can finally be closed with the housing cover 41.
  • the securing device 1 is then ready to be installed or installed, for example, in an electrically powered vehicle.
  • FIGS. 12 to 18 further preferred exemplary embodiments will now be described below, the securing device 1 being shown in a schematic top view in the starting position, that is, during regular operation or intact connection.
  • All figures are only very simple schematic drawings, in which in particular the separating actuator 60 is only shown schematically as an arrow, the arrow also indicating the disengagement direction or the direction of action of the separating actuator 60 or the direction of the tear-off movement AB and thus also the main Indicates the direction HVR of the conductor 100.
  • the housing 11 with the arc extinguishing chambers 30 is, as well as the conductor 100 itself, each shown only roughly schematically.
  • the intended tear-off point 102 is only marked by a single line.
  • these exemplary embodiments (apart from the modifications specifically described in each case) could be constructed in a similar manner or in part with identical components to the exemplary embodiment described in more detail with reference to FIGS. 1 to 11.
  • the exemplary embodiment of the securing device 1 according to the invention shown in FIGS. 12 and 13 has an electrical conductor 100 which differs from the “simple” conductor by a conductor cross-section that is modified at least in sections.
  • FIG. 12 shows a plan view of the plane VE of the conductor 100 and
  • FIG. 13 shows a cross section through the conductor 100 along the section line AA drawn in FIG.
  • the modified electrical conductor 100 is formed with longitudinally extending depressions 120 at least in the area of the tear-off sections 104a, 104b.
  • the conductor cross-section meanders perpendicular to the main direction HVR of the conductor 100.
  • the conductor 100 thus has more contact surface with the extinguishing material 34 in this structured area.
  • the depressions 120 By also filling the depressions 120 with sand 34, it is ensured that that compared to a smooth cross-section without longitudinally extending depressions of a “simple” conductor, there is also extinguishing material 34, so to speak, “within” the conductor 100.
  • an arc LB potentially arising between the intended break-off end sections of the tear-off part 100d 'and the invariant conductor part 100s at the intended tear-off point 102 can be extinguished even better.
  • FIG. 14 shows (again in plan view) an electrical conductor 100 with a step 140 in the region of the tear-off sections 104a, 104b.
  • both the tear-off part 100d and the invariant conductor part 100s of the conductor 100 each run parallel to the longitudinal sides L of the housing 11.
  • the conductor 100 runs in the Essentially perpendicular to the main HVR direction.
  • the intended tear-off point 102 is here directly in this area in the step 140.
  • the tear-off part 100d therefore runs linearly inward relative to the invariant conductor part 100s, offset or shifted parallel to the longitudinal sides L of the housing 11 100 with step 140 at the intended tear-off point 102 (perpendicular to its course direction VR there) is separated or torn apart in the main course direction HVR and the two ends are then inclined to one another in this construction, an arc would occur potentially formed in the context of the tear-off movement at the intended tear-off point 102, accordingly deflected or guided obliquely into the extinguishing material 34.
  • FIG. 15 differs with regard to the exemplary embodiment according to FIGS. 1 to 11 only in that it additionally has a magnet arrangement 150.
  • This is aligned in such a way that it causes a (as homogeneous as possible) magnetic field which is arranged perpendicular to the main direction HVR of the tear-off sections 104a, 104b.
  • the magnets of the magnet arrangement 150 are arranged, for example, on the outside of the housing 11 next to the arc extinguishing chambers 30. In the figure, however, the magnetic field generated by the magnet arrangement 150 is only shown roughly schematically.
  • the magnet arrangement 150 is preferably implemented in such a way that a magnetic field which is as homogeneous as possible is present at least in the area of the desired tear-off point 102.
  • a suitable magnetic field - e.g. B. in about 50 to 100 mT - could for example can be generated by one or more magnets made of neodymium, possibly in connection with a horseshoe-shaped iron yoke as described above.
  • FIG. 16 A first possible embodiment of a suitable extinguishing material movement device 160 is shown in FIG. 16, which has elements in the form of a plow shovel 160 in the area of the predetermined tear-off points 102.
  • the plow blades 160 each extend obliquely - essentially over the area of the intended tear-off points 102 - at an angle from an end of the plow shovel 160 close to the ladder, which is arranged close to the end of the invariant ladder part 100s of the ladder 100 on the collapse side, and have a different, ladder-remote end End which is attached to the tear-off part 100d of the conductor 100 via thin webs 161.
  • the plow blades 160 thus form funnel-shaped blade surfaces, i. H. they move away from the tear-off part 100d of the conductor 100 in the direction of the end remote from the conductor, obliquely to the direction of the main direction HVR.
  • the plow blades 160 When the ladder 100 is torn off, the plow blades 160 are moved along with the one on the tear-off part 100d due to the connection via the webs 161 and the "blade surfaces" of the plow blades 160 actively introduce extinguishing material 34 into the free spaces between the two ends of the ladder. What is achieved thereby is that extinguishing material 34 is in these free spaces even faster than is already deposited or accumulated therein by passive falling or sliding in. In order to be absolutely certain that the plow blades 160 do not form a conductive “bridge” or connection between the tear-off part 100d and the invariant conductor part 100s, they are formed, for example, from an electrically insulating material.
  • FIG. 17 a further possible embodiment of an extinguishing material movement device 170 is shown, which has elements in the manner of a tape 170 in the area of the intended tear-off points 102. This differs only structurally, but not functionally, from the plow blades 160.
  • Each of the straps 170 is attached both to the invariant ladder part 100s and to the tear-off part 100d of the conductor 100, so that when the tear-off part 100d moves forward, it is attached to the invariant ladder part 100s of the ladder 100 by tearing HY is automatically tightened or tensioned and extinguishing material 34 presses into the predetermined tear-off point 102.
  • the tape 170 can bring enough extinguishing material 34 into the predetermined tear-off point 102 by tightening, it is arranged, for example, in a semicircle around the predetermined tear-off point 102, whereby when filling the arc extinguishing chambers 30 care is taken that a particularly large amount of extinguishing material 34 is inside the Bands 170 (ie between band 170 and conductor 100) is located.
  • it is preferably at least somewhat longer than a selected separation distance x.
  • the tapes 170 are also made of an electrically insulating material so that they do not form a conductive connection between the tear-off part 100d and the invariant conductor part 100s.
  • FIG. 18 shows a further exemplary embodiment of the fuse device 1 according to the invention, in which case a third separation of the conductor 100 at an additional nominal separation point 110 can take place.
  • This intended separation point 110 is located in the middle of the closed end face S of the conductor 100 connecting the two tear-off sections 104a, 104b, that is, in the center of an area in the crossbar 100d ”of the tear-off part 100d of the conductor 100.
  • This end face S between the two Legs of the conductor 100 will also be referred to as separating section 111 in the following.
  • the conductor 100 is severed again with a time delay after being torn off at the two target tear-off points 102 in the arc extinguishing chambers 30 by means of a separating device 185 in the separated position P2.
  • the separating device 185 can be formed from two elements 185a, 185b, which interact with one another and effect separation according to the principle of a “guillotine”.
  • One element 185a is a wedge-shaped cutting edge 185a, which protrudes from the inside of the end face S of the housing 11 into the release space 35.
  • the separating element 112 which moves the tear-off part 100d of the conductor 100 against the end face S into the release space 35 to tear the conductor 100 from the separating actuator 60, has a wedge-shaped recess 185b.
  • the separating element 112 then tears off the tear-off part 100d of the conductor 100 when triggered and moves it with the desired cutting point 110 at high speed towards the cutting edge 185a of the cutting device 185, so that the conductor 100 is ultimately in the cut position at the desired cutting point 110 is separated and the cutting edge 185a protrudes at the intended separation point 110 through the conductor 100 and into the wedge-shaped recess 185b of the separating element 112.
  • the cutting edge 185a is made of insulating material, for example ceramic, there is an additional permanently insulated separation of the conductor 100 here. Due to a sufficient time delay after the break, there is also no risk of an electric arc occurring during this further separation.
  • a weakened conductor cross-section 105 which is designed for example in the form of a slight cross-sectional constriction 105 and / or in the manner of a predetermined breaking point.
  • the tear-off sections of the conductor could be located in an associated arc extinguishing chamber.
  • the arc extinguishing chambers could be designed as chambers that can be used separately and each have their own outer walls.
  • the housing could also be designed in such a way that the two connection contacts protrude on the end face on which the locking piece of the isolating actuator is also located, so that the electrical conductor runs through the housing in an essentially U-shaped manner.
  • the special features of the modified preferred exemplary embodiments described above can also be combined with one another if necessary.
  • the use of the indefinite article “a” or “an” does not exclude the possibility that the relevant characteristics can be present several times. List of reference symbols

Landscapes

  • Fuses (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

L'invention concerne un dispositif de sécurité (1) pour l'interruption d'une connexion électrique (V) avec un conducteur électrique (100) comprenant au moins un premier et un deuxième contact de raccordement (101), le conducteur (100) changeant plusieurs fois sa direction d'extension (VR) entre le premier et le deuxième contact de raccordement (101), de telle sorte que le conducteur (100) présente au moins deux sections détachables (104a, 104b) de rupture disposées géométriquement adjacentes l'une à l'autre et connectées électriquement en série. Le dispositif de sécurité (1) comprend en plus un boîtier (11), dans lequel sont reçues au moins les deux sections détachables (104a, 104b) de rupture du conducteur (100), et un actionneur de séparation (60), lequel est conçu et disposé par rapport au conducteur (100) de façon à séparer le conducteur (100), lors d'un actionnement de l'actionneur de séparation (60), par arrachement au moins au niveau des deux sections détachables (104a, 104b). Les deux sections détachables (104a, 104b) du conducteur (100) s'étendent en outre respectivement à travers une chambre de suppression d'arc électrique (30) du boîtier (11) étanche par rapport à un environnement, dans laquelle se trouve un matériau de suppression (34). L'invention concerne en outre un procédé pour la fabrication d'un dispositif de sécurité (1).
PCT/EP2020/055885 2019-03-19 2020-03-05 Dispositif de sécurité WO2020187589A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20709557.1A EP3942587A1 (fr) 2019-03-19 2020-03-05 Dispositif de sécurité

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019107029.5 2019-03-19
DE102019107029.5A DE102019107029A1 (de) 2019-03-19 2019-03-19 Sicherungsvorrichtung

Publications (1)

Publication Number Publication Date
WO2020187589A1 true WO2020187589A1 (fr) 2020-09-24

Family

ID=69770907

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/055885 WO2020187589A1 (fr) 2019-03-19 2020-03-05 Dispositif de sécurité

Country Status (3)

Country Link
EP (1) EP3942587A1 (fr)
DE (1) DE102019107029A1 (fr)
WO (1) WO2020187589A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817133A1 (de) * 1998-04-19 1999-10-28 Lell Peter Powerswitch
DE102012110410A1 (de) * 2012-10-31 2014-04-30 Eaton Industries (Austria) Gmbh Gleichstromschaltgerät
DE202016106931U1 (de) * 2016-12-13 2016-12-29 Peter Lell Elektrisches Unterbrechungsschaltglied, insbesondere zum Unterbrechen von hohen Strömen bei hohen Spannungen
WO2017032362A1 (fr) 2015-08-27 2017-03-02 Peter Lell Sectionneur pour des forts courants continus ou alternatifs à des tensions élevées avec des éléments de connexion câblés en série

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3568817B2 (ja) * 1999-03-10 2004-09-22 矢崎総業株式会社 回路遮断装置
DE102012221664B4 (de) * 2012-09-25 2022-04-21 Te Connectivity Germany Gmbh Kurzschlussabschalter
DE102016124176A1 (de) * 2016-12-13 2017-01-26 Peter Lell Elektrisches Unterbrechungsschaltglied, insbesondere zum Unterbrechen von hohen Strömen bei hohen Spannungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817133A1 (de) * 1998-04-19 1999-10-28 Lell Peter Powerswitch
DE102012110410A1 (de) * 2012-10-31 2014-04-30 Eaton Industries (Austria) Gmbh Gleichstromschaltgerät
WO2017032362A1 (fr) 2015-08-27 2017-03-02 Peter Lell Sectionneur pour des forts courants continus ou alternatifs à des tensions élevées avec des éléments de connexion câblés en série
DE202016106931U1 (de) * 2016-12-13 2016-12-29 Peter Lell Elektrisches Unterbrechungsschaltglied, insbesondere zum Unterbrechen von hohen Strömen bei hohen Spannungen

Also Published As

Publication number Publication date
EP3942587A1 (fr) 2022-01-26
DE102019107029A1 (de) 2020-09-24

Similar Documents

Publication Publication Date Title
EP3048626B1 (fr) Appareil de commutation avec soufflage d'arc par aimant permanent
DE102012221664B4 (de) Kurzschlussabschalter
DE69937107T2 (de) Strombegrenzer und schalter mit strombegrenzungsfunktion
DE102012212509B4 (de) Schutzschalter zum Schutz von elektrischen Bauteilen vor einem Überstrom mittels explosiver Trennladung
DE102018125059A9 (de) Hochspannungsstromleitungs-Schneidvorrichtung
AT521862B1 (de) Pyrotechnischer Stromtrenner
WO2017016543A1 (fr) Sectionneur pour courants continus ou alternatifs élevés à des tensions élevées
DE102008025917A1 (de) Hochspannungssicherung
EP1313117A2 (fr) Dispositif d'extinction d'arc pour un interrupteur électronique
DE112015002371T5 (de) Kontakteinrichtung
WO2007134875A1 (fr) Procédé et dispositif pour la séparation unique et durable d'une liaison électrique, en particulier dans un véhicule automobile
EP2507812A1 (fr) Commutateur de coupe-circuit pour batterie de véhicule
DE10242310A1 (de) Lichtbogenlöschanordnung für ein elektrisches Schaltgerät
DE102007053636B3 (de) Elektrisches Installationsgerät mit Lichtbogen-Vorkammerraum, Vorkammerplatten und strombegrenzender Lichtbogenlöscheinrichtung
DE3413555C2 (fr)
EP3942587A1 (fr) Dispositif de sécurité
WO2021043831A1 (fr) Dispositif coupe-circuit
DE102013022355B3 (de) Schmelzsicherung zur Verwendung in einem Kraftfahrzeug
WO2019115693A1 (fr) Dispositif d'interruption d'un circuit électrique
DE102017204942B4 (de) Elektromechanisches Schutzschaltgerät
EP1302957B1 (fr) Dispositif de contact haute puissance basse tension
DE102012207912B4 (de) Schmelzsicherung zur Verwendung in einem Kraftfahrzeug
AT524104A1 (de) Pyrotechnischer Stromtrenner
DE102010015240B4 (de) Trennvorrichtung für Kraftfahrzeugenergieleiter und deren Verwendung
DE102009057093B4 (de) Installationsschaltgerät mit einer Lichtbogenlöscheinrichtung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20709557

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020709557

Country of ref document: EP

Effective date: 20211019