EP3699944A1 - Élément électrique de commutation d'interruption pourvu d'un élément de séparation tubulaire à épaisseur de paroi variant - Google Patents

Élément électrique de commutation d'interruption pourvu d'un élément de séparation tubulaire à épaisseur de paroi variant Download PDF

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Publication number
EP3699944A1
EP3699944A1 EP20157310.2A EP20157310A EP3699944A1 EP 3699944 A1 EP3699944 A1 EP 3699944A1 EP 20157310 A EP20157310 A EP 20157310A EP 3699944 A1 EP3699944 A1 EP 3699944A1
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EP
European Patent Office
Prior art keywords
area
switching element
sabot
wall thickness
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20157310.2A
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German (de)
English (en)
Inventor
Peter Lell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3699944A1 publication Critical patent/EP3699944A1/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/38—Means for extinguishing or suppressing arc
    • H01H85/40—Means for extinguishing or suppressing arc using an arc-extinguishing liquid
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • 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
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H01H85/08—Fusible members characterised by the shape or form of the fusible member
    • H01H85/10—Fusible members characterised by the shape or form of the fusible member with constriction for localised fusing
    • 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
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/025—Structural association with a binding post of a storage battery

Definitions

  • the invention relates to an electrical interrupt switching element, in particular for interrupting high currents at high voltages, with the features of claim 1.
  • interruption switching elements can be found, for example, in power plant and automotive engineering, as well as in general mechanical and electrical engineering in control cabinets of machines and systems, as well as in the context of electromobility in electric and hybrid vehicles, but also in electrically operated helicopters and airplanes for defined and quick disconnection of electrical power circuits in an emergency use.
  • One requirement of such switching elements is that no hot gas, particles, debris or plasma escape from them.
  • switching elements should ensure the insulation resistance after separation.
  • switching elements with a contact tube with a separating area in the form of a hollow cylinder are used, the hollow cylinder being completely torn, melted or broken along its cross-sectional area to separate the circuit, and both Ends of the hollow cylinder are mechanically removed from each other.
  • an activatable drive is often used, which is located in the hollow space of the hollow cylinder.
  • the invention is based on the object of providing an interruption switching element, in particular for interrupting high direct currents at high voltages, in which, during the transition from the control position to the disconnected position, as few or as few as possible, and if so, only small conductive ones Fragments inside become free, which can cause a short circuit.
  • the interruption switching element according to the invention can be transferred from a master position to a disconnected position. If the interruption switching element according to the invention is integrated into a circuit, the circuit is closed in the control position. The circuit is interrupted in the disconnected position.
  • the interrupting switching element according to the invention has a housing which surrounds a contact unit defining the current path through the interrupting switching element, i. E. the contact unit is surrounded by the housing.
  • the contact unit has a first and a second connection contact and a separation area. The contact unit is designed in such a way that a current can be fed to it via the first connection contact and removed from it via the second connection contact, or vice versa.
  • the separation area is designed as a tubular element, the axial direction of extent of which runs along an axis X, the tubular element being separable into two parts along a plane perpendicular to the axis X, whereby the current between the first and second connection contact is interrupted.
  • the tubular element has two opposite end regions along the direction in which the axis X extends.
  • the interruption switching element according to the invention is characterized in that the tubular element has a minimum wall thickness in an area between the end areas, which increases in each case in the direction of the end areas, preferably excluding the areas of the tubular element in which the cross-sections are radial towards the end areas increase (hereinafter referred to as "radially running cross-sectional transitions").
  • the tubular element has an area between the end areas with a tapering of the wall thickness, in particular not only between the end areas, but in an area between the radially running cross-sectional transitions.
  • the tubular element therefore preferably has a minimum wall thickness in a region between the radially running cross-sectional transitions adjacent to the respective end regions, which increases in each case in the direction of the cross-sectional transitions.
  • the tubular element preferably has a ring-like closed cross-sectional area, which is preferably perpendicular to the axial direction of extent (axis X).
  • the cross-sectional area can have any shape, for example circular, elliptical, any ring-shaped without or with one or more corners, triangular, square, pentagonal, hexagonal or polygonal, a circular cross-sectional area being preferred.
  • the increase in wall thickness can be continuous or discontinuous in the axial extension of the tubular element, ie, for example, in steps, with a continuous increase being preferred.
  • the continuous increase can be linear or progressive. It is preferred according to the invention that the wall thickness increases conically in the direction of the end regions of the tubular element.
  • the tubular element is designed such that it has a cross-sectional area of the same shape in each plane perpendicular to the X axis.
  • the increase in wall thickness in the two directions towards the end regions of the tubular element can be different or the same, ie mirror-symmetrical, the mirror plane being arranged perpendicular to the X axis in the region of the minimum wall thickness.
  • the mirror-symmetrical increase in both directions is preferred according to the invention, since the effect of avoiding torn off parts is then particularly great. It is also preferred that the cross-sectional transitions run radially towards the respective end regions of the tubular element, that is to say are provided with specific radii in order to avoid excessive notch stresses that would affect the tubular element at these points. in particular in the event of mechanical loads or vibrations of the assembly or of the connecting element, unwanted cracking or breaking.
  • the area of the minimum wall thickness of the tubular element can be designed as an area with constant wall thickness. It is preferred that the cross-sectional transitions run radially from the area with minimal wall thickness to the areas in which the wall thickness increases, i.e. are provided with certain radii. In one embodiment, such an area with constant wall thickness can also be omitted, i.e. in the area of the minimum wall thickness, the areas in which the wall thickness increases meet one another, likewise preferably with a radial cross-sectional transition.
  • the two opposite end regions of the tubular element preferably each merge into flanges which extend in the direction of the housing and perpendicular to the X axis.
  • the interruption switching element according to the invention has at least one chamber which is at least partially delimited by the isolating area.
  • the at least one chamber is preferably filled with an extinguishing agent, so that the separation area is in contact with the extinguishing agent.
  • the at least one chamber is preferably located within the cavity of the tubular element of the partition, i. is enclosed by the separation area.
  • the interrupt switching element according to the invention can have a further chamber which adjoins the outer region of the tubular element of the separating region. In other words, the tubular element delimits the at least one chamber from the further chamber.
  • the outer periphery of the further chamber is preferably delimited by the housing of the interruption switching element.
  • the further chamber is preferably also filled with an extinguishing agent.
  • the filling of the cavity of the tubular element can, however, also be omitted, in this case only the further chamber outside the tubular connecting element is filled with an extinguishing agent. With very small currents to be separated in connection with very small circuit inductances, however, this can Extinguishing agents are also completely omitted, the enclosed air is then sufficient for the separation process.
  • the extinguishing agent can be a solid, powdery or a liquid medium.
  • the extinguishing agent is preferably a vaporizable or gasifiable medium (e.g. boric acid; under the influence of the arc, this powder changes directly from the powdery phase into gas, where it absorbs energy and thus depletes the arc).
  • the extinguishing agent is preferably a liquid medium which, when the boiling or evaporation temperature is reached, changes completely or partially into a gaseous state.
  • the extinguishing agent also has good electrical insulating properties so that the arc can be extinguished after the two separated parts of the separation area have been sufficiently removed and there is then sufficient insulation between the separated contacts against a current flow that is then undesirable here.
  • the extinguishing agent is preferably an oil with or without a thickener, for example silicone oil, or a silane or polysiloxane, for example hexasilane or pentasilane, with as little as possible or, even better, without a carbon atom content.
  • the interruption switching element according to the invention has a sabot that can be moved from an initial position to an end position, with an isolation distance between the first and second connection contacts being achieved in the end position of the sabot.
  • the sabot has the task of separating the two separate parts of the separating area from one another by performing a mechanical movement through the application of pressure which removes part of the separated separating area from the other part of the separated separating area. In this way, a safety distance is established between the two separate parts of the separation area.
  • the tripping of the interruption switch according to the invention i. the process of transition from the control position to the disconnected position can be passive or active.
  • the interrupting switching element be an activatable material includes.
  • the activatable material is preferably arranged such that when the pyrotechnic material is ignited, a gas pressure or shock wave generated by the activatable material is applied to the separating area, so that the separating area is torn open, depressed or separated.
  • the sabot is preferably designed in such a way that, when the activatable material is ignited, a gas pressure or shock wave generated thereby is applied to it in such a way that the sabot in the housing moves in one direction of movement from the starting position to the end position and the separation area is torn open. pushed in or separated.
  • the activatable material can be a pyrotechnic material that has a detonating or deflagrating effect.
  • the pyrotechnic material is preferably present in the interruption switching element according to the invention in a so-called mini-tonator, or an igniter pill, but can also be introduced in a different form.
  • the separation area, the sabot and the extinguishing agent are designed in such a way that the separation area is caused by the supplied current when a threshold current strength is exceeded by heating at or above the melting point of the material of the connecting element can be separated into at least two parts, with an arc occurring between the two parts of the separation area evaporating the extinguishing agent so that a gas pressure acting on the sabot is created, the sabot in the housing being moved again in one direction of movement from the starting position into the end position.
  • the separation area can also have one or more predetermined breaking points, which can be in the form of a constriction, notch, groove or hole.
  • the predetermined breaking point is preferably in the form of a bore through the wall of the tubular element of the separating region. In this way, the bore connects the at least one chamber with the further chamber. It is easier in this way in the manufacture of the interruption switching element according to the invention Filling extinguishing agent into the at least one chamber within the tubular element.
  • the contact unit can have an upsetting area.
  • the compression area can be designed in such a way that it surrounds yet another chamber.
  • the compression area can be designed in such a way that it is compressed during the separation process of the separation area.
  • the material of the upsetting area is a readily deformable, possibly also soft-annealed material in order to improve the folding behavior of the upsetting area.
  • the compression area can be designed such that the wall of the compression area is folded, preferably folded in a meandering manner, as a result of the compression movement.
  • the compression area can be designed so that it is compressed when the sabot moves from the starting position into the end position, the compression area preferably being designed as a tubular or rod-shaped element, the axial direction of which runs along an axis X, with the tubular or rod-shaped element can have one or more tapers in its cross-sectional diameter, the cross-sectional diameter being defined perpendicular to the X-axis.
  • the compression area like the separation area of the connecting element, can therefore be present as a tubular element. All preferred embodiments with regard to the tubular element of the separating area also apply to the tubular element of the upsetting area.
  • the upsetting area can, however, also be designed as a rod-shaped element, the outer surface of which can in principle run in the same way as when it is designed as a tubular element.
  • the rod-shaped element can have one or more tapers based on its cross-sectional diameter.
  • a linear or stepwise change in the wall thickness or the diameter in the direction of the X-axis of the upsetting area can prevent the material from tearing open too violently with a corresponding splintering effect. In this way, it can be avoided that splinter parts arise.
  • splinters of the compression area can be torn away during the transition from the control position to the separation position can be largely avoided, so that the already separated contact of the interruption switching element cannot be electrically contacted to the housing, so that no short circuit can occur within the switch.
  • connecting element that are not as ductile as the E-copper usually used here.
  • a hard aluminum must be used as the material for the connecting element, which would break up immediately into many small splinters during the folding process, even if the connecting element was soft annealed after its manufacture.
  • F crit 4 * pi 2 / L 2 * E * I with the clamped length L, the modulus of elasticity of the bar material E. and the axial geometrical moment of inertia I of the rod cross-section.
  • the greatest possible compression length L is desired in order to be able to plastically convert as much of the energy introduced into the assembly / disconnector as possible.
  • the available upsetting length L is, as it were, divided into several smaller upsetting sections, the upsetting areas of which are then predetermined by the changes in cross section.
  • the still further chamber of the compression area can also be completely filled with an extinguishing agent. It is preferred that there is a connection in the form of a channel between the still further chamber and the at least one chamber.
  • the movement of the sabot and / or the upsetting process of the upsetting area reduces the volume of the still further chamber in such a way that the extinguishing agent is injected through the channel between the at least two parts of the separating area.
  • the extinguishing agent can be pressed from the still further chamber via the channel into the at least one chamber during the upsetting process and thus further effectively prevents or cools any arc that may still be at the separation area.
  • the extinguishing agent that may already have partially decomposed in the at least one chamber is diluted by the newly flowing extinguishing agent and thus the insulating properties of the "stressed" extinguishing agent are also improved.
  • the illustrated embodiment of an interruption switching element 1 comprises a housing 2 in which a contact unit 3 is arranged.
  • the housing 2 is designed in such a way that it withstands a pressure generated within the housing 2, which is generated, for example, in the event of a pyrotechnical triggering of the interruption switching element 1, without the risk of damage or even bursting.
  • the housing 2 can in particular consist of a suitable material, preferably steel.
  • the contact unit 3 is designed as a switching tube that can be pressed by the sabot 9 in the compression region 12, so that it is configured as a tube in the separating 6 and compression region 12.
  • the contact unit 3 has a first connection contact 4.
  • the first connection contact 4 is adjoined by a radially outwardly extending flange which is supported on an annular insulator element made of an insulating material, for example a plastic, in such a way that the contact unit 3 cannot be moved out of the housing 2 in the axial direction.
  • the contact unit 3 has an upsetting area 12 adjoining the flange in the axis of the contact unit 3.
  • the wall thickness of the contact unit in the upsetting area 12, which has a predetermined axial extent, is selected and coordinated with the material so that if the interruption switching element 1 is triggered as a result of a plastic deformation of the contact unit 3 in the upsetting area 12, the upsetting area 12 is shortened in the axial direction by a predetermined distance.
  • a flange 13 adjoins the upsetting region 12, on which a sabot 9 is seated in the illustrated embodiment.
  • the sabot 9 is designed as an electrically insulating element, for example a suitable plastic, preferably made of ceramic. This engages around the contact unit 3 in such a way that an insulating area of the sabot 9 engages between the outer circumference of the flange 13 and the inner wall of the housing 2. If pressure acts on the surface of the sabot 9, a force is generated which compresses the compression area 12 of the contact unit 3 via the flange 13.
  • the sabot 9 can be selected so that its outer diameter essentially corresponds to the inner diameter of the housing 2, so that an axial guidance of the flange 13 and thus also an axially guided compression movement is achieved during the switching process.
  • the noses of the insulator element and the sabot 9, which are close to the housing 2 fully overlap one another, so that the upsetting area 12, which is pushed together in a meandering shape after the triggering and the upsetting process, is fully enclosed by electrically insulating materials.
  • a separating area 6 adjoins the sabot 9 or the flange 13 of the contact unit 3.
  • the second connection contact 5 then connects on this side of the contact unit 3.
  • the sabot 9 is pushed onto the contact unit 3 from the side of the connection contact 5 when the interruption switching element 1 is installed. This is divided for this purpose (not shown). If the second connection contact 5 is not divided or if it is in one piece the same as the contact unit 3, as shown, the sabot 9 must either be molded on or made in several parts in order to be able to assemble it.
  • an activatable material 10 can be provided, here often also housed in a mini-tonator or an ignition screw (drive). Electrical connection lines for the drive can be led to the outside through an opening in the interior of the contact unit 3.
  • the drive is preferably provided in a chamber 7 within the tubular element of the separating region 6. Another chamber 8 is located between the outer wall of a separating area 6 and the housing 2.
  • the separation area 6 is dimensioned so that it at least partially tears open by the generated gas pressure or the generated shock wave of a drive, but preferably tears completely, so that the pressure or the shock wave also flows out of the chamber 7 into the outer annular space, which is preferably designed as a surrounding annular space Chamber 8 can expand.
  • the chambers 7 and 8 are connected to one another in this way to form a volume.
  • the internal pressure required for upsetting the contact unit 3 can also be generated in such a way that, at a certain threshold current strength, the separating area 6 melts and an arc is formed between them, which evaporates an extinguishing agent located in the chambers 7 and / or 8.
  • the wall of the contact unit 3 in the separating area 6 can also have one or more openings or bores and / or grooves (not shown in FIG Fig. 1 ). It must be ensured here that the material of the separating region 6 separates the operating current well, that is to say, taking into account heat dissipation, does not become too hot in order not to allow the material to age too quickly or too strongly.
  • a pressure or even a shock wave is generated on the side of the sabot 9 facing away from the upsetting region 12, as a result of which the sabot 9 is subjected to a corresponding axial force.
  • This force is selected by suitable dimensioning of the activatable material 10 such that the contact unit 3 is plastically deformed or pressed in in the compression region 12, but not torn and then the sabot 9 is moved in the direction of the first connection contact 4.
  • the activatable material 10 is dimensioned in such a way that after the separation area 6 is broken open or pressed in, the movement of the sabot 9 causes the two separation halves sufficiently far away from each other, in conjunction with the evaporation of an extinguishing agent, then even to an end position.
  • the separating area 6 is at least partially torn open or pressed in, preferably completely torn open. If the tearing or pushing in does not take place before the start of the axial movement of the sabot 9 over the complete circumference of the separating area 6, a remainder of the separating area 6, which still causes electrical contact, is completely torn open by the axial movement of the sabot 9, reinforced by the very rapid heating of the then only small residual cross-section of the conductor due to the high electrical current flowing here.
  • the interruption switch 1 after Fig. 1 is structured in the same way as that in Fig. 1 Interrupting circuit shown in the DE 10 2017 123 021 A1 , with the difference according to the invention that the separating area 6 is not a tubular element with the same wall thickness throughout, but that the tubular element has a minimum wall thickness in an area between the flange-side end areas, which increases in the direction of the flange-side end areas.
  • the wall thickness increases essentially linearly, and both areas in which the wall thickness increases are mirror-symmetrical to one another, as is also the case, for example, in FIG Figure 2b is shown.
  • the Figures 2a and 2b show the partial area of a contact unit 3 in which the separation area and the flanges 14 and 15 adjoining it are present.
  • the length L is the extension of the separating area in the direction of the axis X.
  • the separating area has an area with minimal wall thickness, which increases in the direction of the flange-side end areas, ie towards the flanges 14 and 15.
  • the radii R1 and R2 represent the radii of the cross-sectional transitions between the separation area and the adjoining flanges 14 and 15.
  • the radius R3 in FIG Figure 2b represents the radius of the cross-sectional transition in the area of the minimum wall thickness to the areas of increasing wall thickness. The same applies to the radii R4 and R5 in the Fig.
  • the area of the minimum wall thickness can also be cylindrical in length and only then into the areas of increase go over the wall thickness.
  • Figure 2b shows an embodiment in which such a cylindrical area is not present.
  • the thickness s in Fig. 2a indicates the minimum wall thickness in the cylindrical area.
  • the angles w3 and w4 can be different, ie the increase in wall thickness in the direction of the two flange-side ends of the separation area need not be the same on both sides.
  • the increase in wall thickness can also take place uniformly in the direction of both flange-side ends of the separation region, as in FIG Figure 2b shown.
  • the angles w1 and w2 are consequently the same size here.
  • Fig. 2a shows a hole as a predetermined breaking point 11 in the separation area with the diameter d.
  • the Fig. 3a and 3b show the partial area of a contact unit 3 in which the upsetting area 12 and the flanges 13 and 17 adjoining it are present.
  • the length L2 is the extent of the compression area in the direction of the axis X.
  • the compression area has an area with minimal wall thickness which increases in the direction of the flange-side end areas, ie towards the flanges 13 and 17.
  • the radii R1 and R2 represent the radii of the cross-sectional transitions between the upsetting area and the adjoining flanges.
  • the radii R3 in Fig. 3 represent the radii of the cross-sectional transitions in the area of the minimum wall thickness to the areas of increasing wall thickness.
  • the area of the minimum wall thickness can also be cylindrical in a length t and only then merge into the areas of increase or decrease in wall thickness.
  • Fig. 3a shows an embodiment in which such a cylindrical area is not present.
  • the thickness s again indicates the minimum wall thickness in the cylindrical area.
  • the angles w3 and w4 can again be different (not shown here), ie the increase in wall thickness in the direction of the two flange-side ends of the upsetting area does not have to be the same on both sides.
  • the increase in wall thickness can also take place uniformly in the direction of both ends of the upsetting region on the flange side, as in FIG Fig. 3 shown.
  • the angles w1 and w2 are consequently the same size here.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • Fuses (AREA)
EP20157310.2A 2019-02-21 2020-02-14 Élément électrique de commutation d'interruption pourvu d'un élément de séparation tubulaire à épaisseur de paroi variant Pending EP3699944A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019104451.0A DE102019104451A1 (de) 2019-02-21 2019-02-21 Elektrisches Unterbrechungsschaltglied mit einem rohrförmigen Trennelement mit variierender Wandstärke

Publications (1)

Publication Number Publication Date
EP3699944A1 true EP3699944A1 (fr) 2020-08-26

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EP20157310.2A Pending EP3699944A1 (fr) 2019-02-21 2020-02-14 Élément électrique de commutation d'interruption pourvu d'un élément de séparation tubulaire à épaisseur de paroi variant

Country Status (4)

Country Link
US (1) US11120957B2 (fr)
EP (1) EP3699944A1 (fr)
CN (1) CN111599641B (fr)
DE (1) DE102019104451A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102019220099B4 (de) * 2019-12-19 2021-07-29 Siemens Mobility GmbH Schienenfahrzeug
DE102021125711A1 (de) 2021-10-04 2021-12-02 Peter Lell Zündeinheit zum Einsetzen in pyrotechnische Baugruppen

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DE102010035684A1 (de) * 2010-08-27 2012-03-01 Auto-Kabel Managementgesellschaft Mbh Elektrische Trennvorrichtung sowie Verfahren zum elektrischen Trennen von Anschlussteilen mit Hilfe einer Trennvorrichtung
DE202017106260U1 (de) * 2017-10-04 2017-11-06 Peter Lell Elektrisches Unterbrechungsschaltglied mit passiver Unterbrechungsauslösung, insbesondere zur Unterbrechung von hohen Strömen bei hohen Spannungen
DE202017106261U1 (de) * 2016-12-13 2017-11-28 Peter Lell Elektrisches Unterbrechungsschaltglied, insbesondere zum Unterbrechen von hohen Strömen bei hohen Spannungen
DE102018103018A1 (de) * 2018-02-09 2018-03-29 Peter Lell Unterbrechungsschaltglied mit Haupt- und Nebenschlussstrompfad

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CN111599641B (zh) 2023-03-21
CN111599641A (zh) 2020-08-28
US11120957B2 (en) 2021-09-14
DE102019104451A1 (de) 2019-04-11

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