EP0639844B1 - Device for electrical disconnection - Google Patents

Device for electrical disconnection Download PDF

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Publication number
EP0639844B1
EP0639844B1 EP94112677A EP94112677A EP0639844B1 EP 0639844 B1 EP0639844 B1 EP 0639844B1 EP 94112677 A EP94112677 A EP 94112677A EP 94112677 A EP94112677 A EP 94112677A EP 0639844 B1 EP0639844 B1 EP 0639844B1
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EP
European Patent Office
Prior art keywords
contact
tubular
pieces
bolt
insulating
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.)
Expired - Lifetime
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EP94112677A
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German (de)
French (fr)
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EP0639844A1 (en
Inventor
Jürgen Becker
Günter Loske
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Ingenieurbuero fur Elektrotechnik und Elektronik Juergen Becker
Original Assignee
Ingenieurbuero fur Elektrotechnik und Elektronik Juergen Becker
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Priority claimed from DE19934328174 external-priority patent/DE4328174A1/en
Priority claimed from DE9401486U external-priority patent/DE9401486U1/en
Application filed by Ingenieurbuero fur Elektrotechnik und Elektronik Juergen Becker filed Critical Ingenieurbuero fur Elektrotechnik und Elektronik Juergen Becker
Publication of EP0639844A1 publication Critical patent/EP0639844A1/en
Application granted granted Critical
Publication of EP0639844B1 publication Critical patent/EP0639844B1/en
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    • 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
    • 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

Definitions

  • the invention relates to a device for the electrical separation of an accumulator from an electrical circuit connected by means of connecting lines to its positive and negative poles according to the preamble of claim 1 (FR-A-26 16 958).
  • Accumulators i.e. batteries or electrical energy storage devices
  • Intensive work is being done on the use of batteries as an energy source for vehicles, so-called electric cars.
  • Accumulators work on the basis of lead, nickel cadmium, nickel hydride, sodium sulfur and the like.
  • Short circuit currents can be between 2000 and 5000 A. Such short-circuit currents can cause devastating damage.
  • the relevant safety regulations meanwhile also require the battery to be disconnected from the connected consumers in the event of a malfunction, at least in the event of an accident, so that the amounts of energy released cannot do any damage.
  • the object of the invention is to provide a device for the electrical separation of a rechargeable battery from an electrical circuit which can be carried out simply and safely, without voluminous, heavy and expensive components.
  • a device for the electrical separation of an accumulator from an electrical circuit connected with connecting lines to its positive and negative poles is specified, according to claim 1.
  • the connecting line connected to the positive pole of the accumulator is blown up. This will create Short-circuit currents safely excluded. It is advantageously stated that the explosive pulse is emitted on the basis of a parameter monitored by measurement when the parameter reaches a preset value. The method is advantageously carried out automatically.
  • static or kinetic parameters can be used as monitored parameters, such as are detected by monitoring units already present in vehicles.
  • the monitoring unit of an airbag can deliver corresponding parameters which essentially represent acceleration parameters and, as a result of an accident, exceed the preset values and can thus cause an ignition pulse to be emitted.
  • Temperature can also be used as a parameter to be monitored.
  • the heat released by the switching unit when the flow of current is too great for example in the event of an overload or short circuit on the accumulator, can be used as parameters.
  • Other acceleration or deceleration values are also suitable for parameter monitoring when using the device according to the invention.
  • the device according to the invention can be made very small. It is not susceptible to faults and can be manufactured inexpensively. Depending on the explosive used, the device according to the invention can be miniaturized. It is advantageously stated that the device for disconnecting is arranged on the connecting line in the region of the positive pole of the accumulator. It is advantageously stated that the device comprises a control device for the delivery of pulses. This control device can be used for parameter monitoring and ignition pulse delivery. The explosive charge, the detonator and the connections for activating the detonator are advantageously arranged in one housing.
  • the device according to the invention has an electrically conductive bolt which is arranged in the connecting line on the positive pole of an accumulator.
  • the explosive charge is advantageously arranged on the bolt. This ensures that a defined explosive effect is guaranteed by the use of predetermined separating and separating agents.
  • the device according to the invention can be miniaturized and is inexpensive and easy to manufacture. It can be used safely and easily. Furthermore, the device according to the invention can be easily integrated into the electronics or electrics of an existing vehicle. By blowing up the connecting cable, short-circuit currents are completely avoided and consequential damage is excluded.
  • the separating element Due to the simple structure, consisting of two connecting pieces, which are electrically connected by an electrical contact element which can be displaced by the blasting or moved away by at least one of the connecting pieces, the separating element can be produced very economically.
  • the arrangement of the explosive charge on one side of the contact element ensures that it is moved away from at least one of the connecting pieces.
  • connection pieces are pipe pieces which, according to a further proposal of the invention, are at least partially electrically conductive. It is therefore possible to use electrically conductive pipe pieces or pipe sleeves consisting, for example, of metal, but it is also possible to use plastic pipe pieces which are at least partially electrically conductive due to inclusions and / or linings. According to a further proposal of the invention, an insulating washer is arranged between the two pieces of pipe. This allows the pipe sections to be brought to a defined distance from one another and are nevertheless electrically insulated.
  • the contact element in the tube interior is used to bridge the insulating washer. This measure will Contact element inside the pipe as in a guide and the electrical connection is made by bridging the insulating washer between the two pieces of pipe.
  • the explosive charge be arranged on the end of one of the pipe sections opposite the insulating disk. In the event of an explosion, this measure has the effect that the contact element is moved away from this pipe section and in the direction of the other pipe section.
  • the contact element is a bolt.
  • a bolt of different design can advantageously establish an electrical connection between the two pipe pieces or pipe sleeves serving as connecting pieces.
  • the outside diameter of the bolt essentially corresponds to the inside diameter of the pipe sections.
  • contact surfaces are arranged between the bolt and the tube pieces, which are formed in a particularly advantageous manner by contact lamellae. On the one hand, this guarantees a secure electrical connection, and on the other hand, if the bolt is securely seated in the contact position, the bolt can be easily moved by the explosion.
  • a compressed gas generator is advantageously used as the explosive charge.
  • a vent hole is advantageously arranged on the pipe section provided with the explosive charge. In this way, after blasting and displacement of the bolt serving as the contact element, the excess pressure in the interior of the pipe section can be reduced. Since spark discharges take place in a known manner between the high-voltage or high-current-carrying connections, an insulation element is used between the explosive charge and the contact element according to a further proposal of the invention. When blasting has taken place, the insulation element is moved to the position of the contact element, so that spark is extinguished automatically. According to an advantageous proposal of the invention, the insulation element is a bolt.
  • a connection for the battery is arranged on one of the pipe sections, and advantageously a connection for a consumer on the other pipe section.
  • circuits with accumulators are connected in such a way that a line leading from the positive pole is brought to the circuit directly or after a distributor, while the connection to the negative pole is established via a common ground rail, ground line or a ground region.
  • the separating device can advantageously be arranged, the pipe section being fastened to the pole with the connection for the battery, while the connection for the consumer is, for example, a plug pin or threaded bolt to which the line leading to the circuit is connected.
  • the individual parts forming the separating device are arranged in a housing.
  • the explosive charge on the pipe section facing away from the battery.
  • the device according to the invention can be created in a simple and miniaturized design. It is economical and reliable.
  • the device is also reusable, since after the connection pieces have been reconnected by the contact element and an explosive charge has been rearranged, the device is operational again. The simple exchange of an explosive charge is possible without much assembly effort.
  • Figure 1 shows the basic structure of a circuit 1, in which an accumulator 2 is arranged as an energy source.
  • the accumulator 2 has a positive pole 3 and a negative pole 4, to which the connecting lines 5, 6 of the circuit 1 are connected.
  • the connecting lines 5, 6 lead to a consumer circuit 7.
  • the consumer or consumers of electrical energy are connected in the consumer circuit.
  • the connecting line 5 can comprise a fuse 8 in a known manner.
  • the device 9 according to the invention for electrically separating the battery 2 from the connected circuit is arranged in the region of the positive pole 3 of the battery 2.
  • the separating device 9 is arranged in a housing 10, into which insulating bushings 11 lead. In the area of the insulating bushings 11, connecting bolts 12 are arranged. The connecting line 5 from the electrical circuit to the positive pole 3 of the accumulator 2 is connected to the connecting bolts 12.
  • the separating device 9 comprises a bolt 13, which represents a defined electrical conductor. If the separating device 9 is inserted via the connection bolts 12 into the connection line 5 from the positive pole 3 of the accumulator 2 to the consumer circuit 7, the electrical conduction of the electrical energy from the accumulator 2 to the consumer circuit 7 is ensured by the bolt 13.
  • An explosive charge 14 is arranged on the bolt 13, on which in turn an igniter 15 is arranged. The igniter 15 has activation connections 16.
  • An ignition pulse is supplied to the igniter 15 via the activation connections 16, which causes the explosive charge 1 to explode in a manner known per se.
  • the bolt 13 is then cut in a defined manner. Since the housing 10 is made of metal or an explosion-proof plastic, the explosion is harmless. Since the bolt 13 is severed in a defined manner by the ignition of the explosive charge 14, the electrical line is safely cut through from the positive pole 3 of the accumulator 2 to the consumer circuit 7.
  • the separating device 9 can, for example, act directly on a connecting line without an electrically conductive bolt 13 having to be placed in between.
  • the separating device can be easily retrofitted by arranging the explosive charge on a line and enclosing the device in a housing. Retrofitting is of course also possible by separating the connecting line and connecting to an embodiment as shown.
  • the ignition pulse can be a pulse present directly in the other monitoring devices of the vehicle, it can also be emitted by a control circuit, not shown, which is provided specifically for operating the separating device 9 as a result of separate parameter monitoring.
  • the separating device 9 shown in FIG. 3 comprises a housing 10 which is essentially a cylindrical housing which is open at both ends and is additionally provided with slots on one side.
  • the connecting tube sleeves 17 and 18 are inserted, between which an insulating washer 19 is arranged.
  • the connecting tube sleeves 17 and 18 are thus electrically insulated from one another.
  • a battery connection 20 is arranged on the connecting tube sleeve 17 and extends through the cylindrical housing 10 at a slot provided for this purpose.
  • a corresponding consumer connection 21 is arranged on the connecting tube sleeve 18, which in the exemplary embodiment is a connecting threaded bolt.
  • the cylindrical housing 10 is closed at both ends by means of screw covers 22 and 23, the screw cover 22 having a through hole for pressure equalization, and the screw cover 23 having a through hole for the ignition connection of the detonating element.
  • a vent hole 24 arranged between the two ends is provided in the connecting tube sleeve 18.
  • Both connection tube sleeves are electrical by means of Contact pin 25 connected, which is provided for this purpose as contact surfaces at both ends with contact blades 26.
  • contact sockets 27 are also arranged at the contact points in the connecting tube sleeves.
  • the connecting tube sleeves 17 and 18 are thus electrically connected to one another by means of the contact pin 25, so that a current flow from the battery connection 20 via the connecting tube sleeve 17, the contact socket 27, the contact plates 26, the contact pin 25, the contact plates 26, the contact socket 27, the connecting tube sleeve 18 up to the consumer connection 21 is possible.
  • the explosive element 28 consisting of explosive charge and detonator
  • the connection 29 of the detonating element 28 projects through the screw cap 23 and can be connected to a corresponding ignition line.
  • An insulating bolt 30, for example made of plastic, is arranged between the explosive element 28 and the contact bolt 25.
  • the detonating element 28 is ignited and causes the contact bolt 25 to be displaced in the opposite direction from the explosive charge until the contact bolt 25 has completely left the connecting tube sleeve 18.
  • the air pressure building up in front of the contact pin in the feed direction can escape through the through hole in the screw cap 22.
  • a spark discharge can easily occur between the contact sockets or contact surfaces.
  • the insulating bolt 30 has taken the place of the contact bolt due to the detonating element, the space for such a spark discharge is closed.
  • the separating device 9 can then easily be put back into the operating state by unscrewing the screw caps 22 and 23, replacing the detonating element 28 and pushing the contact bolts 25 or insulating bolts 30 back into their starting position. Then the screw caps 22 and 23 are screwed on again and the separating device 9 is again in its original operating state.

Description

Die Erfindung betrifft eine Vorrichtung zur elektrischen Trennung eines Akkumulators von einer mittels Anschlußleitungen an dessen Plus- und Minuspolen angeschlossenen elektrischen Schaltung entsprechend dem Oberbegriff des Anspruchs 1 (FR-A-26 16 958).The invention relates to a device for the electrical separation of an accumulator from an electrical circuit connected by means of connecting lines to its positive and negative poles according to the preamble of claim 1 (FR-A-26 16 958).

Akkumulatoren, also Batterien bzw. elektrische Energiespeicher, werden zunehmend als Ersatz für Verbrennungsantriebe oder zumindest zu deren Ergänzung eingesetzt. Dabei wird intensiv an dem Einsatz von Akkumulatoren als Energiequelle für Fahrzeuge, sogenannte Elektroautos, gearbeitet. Bei Unfällen gleich welcher Art kann es zwangsläufig zu einem Kurzschluß zwischen dem Minus- und Pluspol des Akkumulators kommen. In diesem Falle können eine erhebliche elektrische Energie und Leistung frei werden, so daß es zu erheblichen Folgeschäden für Menschen und Materialien kommen kann. Akkumulatoren arbeiten auf der Basis von Blei, Nickel-Cadmium, Nickel-Hydrid, Natrium-Schwefel und dgl. Kurzschlußströme können zwischen 2000 und 5000 A liegen. Derartige Kurzschlußströme können verheerende Schäden bewirken. Auch die einschlägigen Sicherheitsbestimmungen verlangen inzwischen eine Trennung des Akkumulators von den angeschlossenen Verbrauchern im Falle einer Fehlfunktion, zumindest bei einem Unfall, damit die freiwerdenden Energiemengen keinen Schaden anrichten können.Accumulators, i.e. batteries or electrical energy storage devices, are increasingly being used as replacements for combustion drives or at least to supplement them. Intensive work is being done on the use of batteries as an energy source for vehicles, so-called electric cars. In the event of accidents of any kind, there can inevitably be a short circuit between the negative and positive poles of the accumulator. In this case, considerable electrical energy and power can be released, so that there can be considerable consequential damage to people and materials. Accumulators work on the basis of lead, nickel cadmium, nickel hydride, sodium sulfur and the like. Short circuit currents can be between 2000 and 5000 A. Such short-circuit currents can cause devastating damage. The relevant safety regulations meanwhile also require the battery to be disconnected from the connected consumers in the event of a malfunction, at least in the event of an accident, so that the amounts of energy released cannot do any damage.

Da sehr hohe Spannungen und Ströme abzuschalten sind, müssen mechanische oder elektromechanische Schalteinheiten grundsätzlich sehr große, schwere und damit aufwendig zu erstellende und teure Bauteile sein. Es besteht somit ein Bedarf an miniaturisierbaren, möglichst leichten sowie wirtschaftlich herzustellenden Vorrichtungen zur elektrischen Trennung. Darüber hinaus sollen die Vorrichtungen aus möglichst einfach austauschbaren Teilen bestehen und soweit möglich nach einer Sprengung wieder einsatzfähig gemacht werden können.Since very high voltages and currents have to be switched off, mechanical or electromechanical switching units must in principle be very large, heavy and therefore complex to manufacture and expensive components. There is therefore a need for miniaturizable, as light as possible and economical devices for electrical separation to be produced. In addition, the devices should consist of parts that are as simple as possible to replace and, as far as possible, be made operational again after an explosion.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung zur elektrischen Trennung eines Akkumulators von einer elektrischen Schaltung anzugeben, welches einfach und ohne voluminöse, schwere und teure Bauteile und trotzdem sicher durchgeführt werden kann.Proceeding from this, the object of the invention is to provide a device for the electrical separation of a rechargeable battery from an electrical circuit which can be carried out simply and safely, without voluminous, heavy and expensive components.

Als technische Lösung dieser Aufgabe wird eine Vorrichtung zur elektrischen Trennung eines Akkumulators von einer mit Anschlußleitungen an des-sen Plus- und Minuspolen angeschlossenen elektrischen Schaltung angegeben, entsprechend dem Anspruch 1.As a technical solution to this problem, a device for the electrical separation of an accumulator from an electrical circuit connected with connecting lines to its positive and negative poles is specified, according to claim 1.

Mit der erfindungsgemäßen Lösung kann nun ohne die Verwendung großer, schwerer und teurer Bauteile eine sichere elektrische Trennung zwischen Akkumulator und Verbraucherschaltung gewährleistet werden. Da insbesondere beim Einsatz in Elektroautos sowohl auf Volumen als auch auf Gewicht geachtet werden muß, kann das erfindungsgemäße Verfahren dort mit besonderem Vorteil eingesetzt werden, da die zur Sprengung einer Anschlußleitung erforderliche Sprengladung sehr schwach sein kann.With the solution according to the invention, a safe electrical separation between the accumulator and the consumer circuit can now be ensured without the use of large, heavy and expensive components. Since both volume and weight have to be taken into account particularly when used in electric cars, the method according to the invention can be used there with particular advantage since the explosive charge required to detonate a connecting line can be very weak.

In besonders vorteilhafter Weise wird die an dem Pluspol des Akkumulators angeschlossene Anschlußleitung gesprengt. Dadurch wird das Entstehen von Kurzschlußströmen sicher ausgeschlossen. In vorteilhafter Weise wird angegeben, daß der Sprengimpuls aufgrund eines durch Messung überwachten Parameters abgegeben wird, wenn der Parameter einen Vorgabewert erreicht. In vorteilhafter Weise wird das Verfahren automatisch durchgeführt.In a particularly advantageous manner, the connecting line connected to the positive pole of the accumulator is blown up. This will create Short-circuit currents safely excluded. It is advantageously stated that the explosive pulse is emitted on the basis of a parameter monitored by measurement when the parameter reaches a preset value. The method is advantageously carried out automatically.

Als überwachte Parameter können beispielsweise statische bzw. kinetische Parameter herangezogen werden, wie sie von in Fahrzeugen bereits vorhandenen Überwachungseinheiten erfaßt werden. Beispielsweise kann die Überwachungseinheit eines Airbags entsprechende Parameter liefern, die im wesentlichen Beschleunigungsparameter darstellen und infolge eines Unfalles Vorgabewerte überschreiten und damit die Abgabe eines Zündimpulses bewirken können. Weiterhin kommt als zu überwachender Parameter die Temperatur in Frage. So kann beispielsweise die bei zu großem Stromfluß durch die Schalteinheit freiwerdende Wärme, beispielsweise bei Überlastung oder Kurzschluß am Akkumulator, als Parameter genutzt werden. Auch sonstige Beschleunigungs- oder Verzögerungswerte eignen sich für die Parameterüberwachung zur Anwendung der erfindungsgemäßen Vorrichtung.For example, static or kinetic parameters can be used as monitored parameters, such as are detected by monitoring units already present in vehicles. For example, the monitoring unit of an airbag can deliver corresponding parameters which essentially represent acceleration parameters and, as a result of an accident, exceed the preset values and can thus cause an ignition pulse to be emitted. Temperature can also be used as a parameter to be monitored. For example, the heat released by the switching unit when the flow of current is too great, for example in the event of an overload or short circuit on the accumulator, can be used as parameters. Other acceleration or deceleration values are also suitable for parameter monitoring when using the device according to the invention.

Die erfindungsgemäße Vorrichtung kann sehr klein ausgestaltet werden. Sie ist störunanfällig und kostengünstig herstellbar. Je nach verwendetem Sprengmittel kann die erfindungsgemäße Vorrichtung miniaturisiert werden. Mit Vorteil wird angegeben, daß die Vorrichtung zum Trennen an der Anschlußleitung im Bereich des Pluspols des Akkumulators angeordnet ist. Mit Vorteil wird angegeben, daß die Vorrichtung eine Steuervorrichtung zur Impulsabgabe umfaßt. Diese Steuervorrichtung kann zur Parameterüberwachung und Zündimpulsabgabe verwendet werden. In vorteilhafter Weise sind die Sprengladung, der Zünder und die Anschlüsse zur Zünderaktivierung in einem Gehäuse angeordnet.The device according to the invention can be made very small. It is not susceptible to faults and can be manufactured inexpensively. Depending on the explosive used, the device according to the invention can be miniaturized. It is advantageously stated that the device for disconnecting is arranged on the connecting line in the region of the positive pole of the accumulator. It is advantageously stated that the device comprises a control device for the delivery of pulses. This control device can be used for parameter monitoring and ignition pulse delivery. The explosive charge, the detonator and the connections for activating the detonator are advantageously arranged in one housing.

Mit Vorteil wird angegeben, daß die erfindungsgemäße Vorrichtung einen elektrisch leitenden Bolzen aufweist, welcher in der Anschlußleitung am Pluspol eines Akkumulators angeordnet ist. In vorteilhafter Weise wird die Sprengladung am Bolzen angeordnet. Damit wird gewährleistet, daß eine definierte Sprengwirkung durch den Einsatz vorgegebener trennender und zu trennender Mittel gewährleistet ist.It is advantageously stated that the device according to the invention has an electrically conductive bolt which is arranged in the connecting line on the positive pole of an accumulator. The explosive charge is advantageously arranged on the bolt. This ensures that a defined explosive effect is guaranteed by the use of predetermined separating and separating agents.

Die erfindungsgemäße Vorrichtung kann miniaturisiert werden und ist kostengünstig und einfach herstellbar. Sie ist ohne großen Aufwand und sicher einsetzbar. Weiterhin kann die erfindungsgemäße Vorrichtung leicht in die Elektronik bzw. Elektrik eines vorhandenen Fahrzeugs integriert werden. Durch die Sprengung der Anschlußleitung werden Kurzschlußströme vollständig vermieden und Folgeschäden damit ausgeschlossen.The device according to the invention can be miniaturized and is inexpensive and easy to manufacture. It can be used safely and easily. Furthermore, the device according to the invention can be easily integrated into the electronics or electrics of an existing vehicle. By blowing up the connecting cable, short-circuit currents are completely avoided and consequential damage is excluded.

Durch den einfachen Aufbau, bestehend aus zwei Anschlußstücken, die durch ein durch die Sprengung verschiebbares oder von wenigstens einem der Anschlußstücke wegbewegbaren elektrischen Kontaktelement elektrisch verbunden sind, ist das Trennelement sehr wirtschaftlich herstellbar. Durch die Anordnung der Sprengladung auf einer Seite des Kontaktelementes wird sichergestellt, daß es von wenigstens einem der Anschlußstücke wegbewegt wird.Due to the simple structure, consisting of two connecting pieces, which are electrically connected by an electrical contact element which can be displaced by the blasting or moved away by at least one of the connecting pieces, the separating element can be produced very economically. The arrangement of the explosive charge on one side of the contact element ensures that it is moved away from at least one of the connecting pieces.

Es wird angegeben, daß die Anschlußstücke Rohrstücke sind, die gemäß einem weiteren Vorschlag der Erfindung wenigstens teilweise elektrisch leitend sind. Es können also elektrisch leitende, beispielsweise aus Metall bestehende Rohrstücke oder Rohrhülsen verwendet werden, es können aber auch Kunststoffrohrstücke verwendet werden, die durch Einlagerungen und/oder Auskleidungen wenigstens teilweise elektrisch leitend sind. Gemäß einem weiteren Vorschlag der Erfindung ist zwischen den zwei Rohrstücken eine Isolierscheibe angeordnet. Damit können die Rohrstücke auf einen definierten Abstand zueinander gebracht werden und sind dennoch elektrisch isoliert.It is stated that the connection pieces are pipe pieces which, according to a further proposal of the invention, are at least partially electrically conductive. It is therefore possible to use electrically conductive pipe pieces or pipe sleeves consisting, for example, of metal, but it is also possible to use plastic pipe pieces which are at least partially electrically conductive due to inclusions and / or linings. According to a further proposal of the invention, an insulating washer is arranged between the two pieces of pipe. This allows the pipe sections to be brought to a defined distance from one another and are nevertheless electrically insulated.

Mit Vorteil wird vorgeschlagen, daß das Kontaktelement im Rohrinneren die Isolierscheibe überbrückend eingesetzt ist. Durch diese Maßnahme wird das Kontaktelement im Rohrinneren wie in einer Führung aufgenommen und die elektrische Verbindung durch Überbrücken der Isolierscheibe zwischen den beiden Rohrstücken hergestellt.It is advantageously proposed that the contact element in the tube interior is used to bridge the insulating washer. This measure will Contact element inside the pipe as in a guide and the electrical connection is made by bridging the insulating washer between the two pieces of pipe.

Mit Vorteil wird vorgeschlagen, daß die Sprengladung an dem der Isolierscheibe entgegengesetzten Ende eines der Rohrstücke angeordnet ist. Durch diese Maßnahme wird bei einer Sprengung bewirkt, daß das Kontaktelement von diesem Rohrstück weg und in Richtung des anderen Rohrstückes verschoben wird.It is advantageously proposed that the explosive charge be arranged on the end of one of the pipe sections opposite the insulating disk. In the event of an explosion, this measure has the effect that the contact element is moved away from this pipe section and in the direction of the other pipe section.

Mit Vorteil wird vorgeschlagen, daß das Kontaktelement ein Bolzen ist. Ein Bolzen unterschiedlicher Ausgestaltung kann in vorteilhafter Weise eine elektrische Verbindung zwischen den beiden als Anschlußstücken dienenden Rohrstücken oder Rohrhülsen herstellen. Gemäß einem vorteilhaften Vorschlag entspricht der Außendurchmesser des Bolzens im wesentlichen dem Innendurchmesser der Rohrstücke. Mit Vorteil wird angegeben, daß zwischen dem Bolzen und den Rohrstücken Kontaktflächen angeordnet sind, die in besonders vorteilhafter Weise durch Kontaktlamellen gebildet sind. Dadurch wird zum einen die sichere elektrische Verbindung garantiert, zum anderen bei sicherem Sitz in der Kontaktposition dennoch eine leichte Verschiebbarkeit des Bolzens durch die Sprengung ermöglicht.It is advantageously proposed that the contact element is a bolt. A bolt of different design can advantageously establish an electrical connection between the two pipe pieces or pipe sleeves serving as connecting pieces. According to an advantageous proposal, the outside diameter of the bolt essentially corresponds to the inside diameter of the pipe sections. It is advantageously stated that contact surfaces are arranged between the bolt and the tube pieces, which are formed in a particularly advantageous manner by contact lamellae. On the one hand, this guarantees a secure electrical connection, and on the other hand, if the bolt is securely seated in the contact position, the bolt can be easily moved by the explosion.

Als Sprengladung wird in vorteilhafter Weise ein Druckgasgenerator verwendet. An dem mit der Sprengladung versehenen Rohrstück ist in vorteilhafter Weise eine Entlüftungsbohrung angeordnet. Auf diese Weise kann nach erfolgter Sprengung und erfolgter Verschiebung des als Kontaktelement dienenden Bolzens der Überdruck im Rohrstückinneren abgebaut werden. Da in bekannter Weise zwischen den hochspannung- oder hochstromführenden Anschlüssen Funkenentladungen stattfinden, wird gemäß einem weiteren Vorschlag der Erfindung zwischen der Sprengladung und dem Kontaktelement ein Isolationselement eingesetzt. Bei erfolgter Sprengung wird das Isolationselement an die Stelle des Kontaktelementes verschoben, so daß automatisch eine Funkenlöschung erfolgt. Das Isolationselement ist gemäß einem vorteilhaften Vorschlag der Erfindung ein Bolzen.A compressed gas generator is advantageously used as the explosive charge. A vent hole is advantageously arranged on the pipe section provided with the explosive charge. In this way, after blasting and displacement of the bolt serving as the contact element, the excess pressure in the interior of the pipe section can be reduced. Since spark discharges take place in a known manner between the high-voltage or high-current-carrying connections, an insulation element is used between the explosive charge and the contact element according to a further proposal of the invention. When blasting has taken place, the insulation element is moved to the position of the contact element, so that spark is extinguished automatically. According to an advantageous proposal of the invention, the insulation element is a bolt.

In vorteilhafter Weise ist an einem der Rohrstücke ein Anschluß für die Batterie angeordnet, und mit Vorteil an dem anderen Rohrstück ein Anschluß für einen Verbraucher. Es ist selbstverständlich bekannt, daß Schaltungen mit Akkumulatoren so verbunden sind, daß eine vom Pluspol führende Leitung direkt oder nach einem Verteiler an die Schaltung herangeführt wird, während die Verbindung mit dem negativen Pol über eine gemeinsame Masseschiene, Masseleitung oder einen Massebereich hergestellt wird. Im Bereich der stromzuführenden Leitung kann vorteilhafterweise die Trennvorrichtung angeordnet werden, wobei das Rohrstück mit dem Anschluß für die Batterie am Pol befestigt wird, während der Anschluß für den Verbraucher beispielsweise ein Steckstift oder Gewindebolzen ist, an welchen die zur Schaltung führende Leitung angeschlossen wird.Advantageously, a connection for the battery is arranged on one of the pipe sections, and advantageously a connection for a consumer on the other pipe section. It is of course known that circuits with accumulators are connected in such a way that a line leading from the positive pole is brought to the circuit directly or after a distributor, while the connection to the negative pole is established via a common ground rail, ground line or a ground region. In the area of the current-carrying line, the separating device can advantageously be arranged, the pipe section being fastened to the pole with the connection for the battery, while the connection for the consumer is, for example, a plug pin or threaded bolt to which the line leading to the circuit is connected.

Mit Vorteil wird vorgeschlagen, daß die die Trennvorrichtung bildenden Einzelteile in einem Gehäuse angeordnet sind. Um Zerstörungen an der Batterie zu vermeiden ist es zweckmäßig, die Sprengladung an dem von der Batterie abgewandten Rohrstück anzuordnen. Die erfindungsgemäße Vorrichtung läßt sich in einfacher und miniaturisierter Bauweise erstellen. Sie ist wirtschaftlich und betriebssicher. Insbesondere ist die Vorrichtung auch wiederverwendbar, da nach dem Wiederverbinden der Anschlußstücke durch das Kontaktelement und Neuanordnung einer Sprengladung die Vorrichtung wieder einsatzfähig ist. Der einfache Austausch einer Sprengladung ist ohne großen Montageaufwand möglich.It is advantageously proposed that the individual parts forming the separating device are arranged in a housing. In order to avoid damage to the battery, it is advisable to arrange the explosive charge on the pipe section facing away from the battery. The device according to the invention can be created in a simple and miniaturized design. It is economical and reliable. In particular, the device is also reusable, since after the connection pieces have been reconnected by the contact element and an explosive charge has been rearranged, the device is operational again. The simple exchange of an explosive charge is possible without much assembly effort.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der folgenden Beschreibung anhand der Figuren. Dabei zeigen:

Figur 1
eine schematische Darstellung eines Akkumulator/Verbraucherschaltkreises, in welchem eine erfindungsgemäße Vorrichtung eingesetzt ist;
Figur 2
eine schematische Darstellung eines Ausführungsbeispiels der erfindungsgemäßen Schaltvorrichtung und
Figur 3
eine schematische Schnittdarstellung eines weiteren Ausführungsbeispiels für eine erfindungsgemäße Trennvorrichtung.
Further advantages and features of the invention result from the following description with reference to the figures. Show:
Figure 1
a schematic representation of an accumulator / consumer circuit, in which a device according to the invention is used;
Figure 2
a schematic representation of an embodiment of the switching device according to the invention and
Figure 3
is a schematic sectional view of a further embodiment for a separation device according to the invention.

Figur 1 zeigt den prinzipiellen Aufbau eines Schaltkreises 1, in welchem als Energiequelle ein Akkumulator 2 angeordnet ist. Der Akkumulator 2 weist einen Pluspol 3 und einen Minuspol 4 auf, an welche die Anschlußleitungen 5, 6 des Schaltkreises 1 angeschlossen sind. Die Anschlußleitungen 5, 6 führen zu einer Verbraucherschaltung 7. In der Verbraucherschaltung sind der oder die Verbraucher der elektrischen Energie angeschlossen. Die Anschlußleitung 5 kann in bekannter Weise eine Sicherung 8 umfassen.Figure 1 shows the basic structure of a circuit 1, in which an accumulator 2 is arranged as an energy source. The accumulator 2 has a positive pole 3 and a negative pole 4, to which the connecting lines 5, 6 of the circuit 1 are connected. The connecting lines 5, 6 lead to a consumer circuit 7. The consumer or consumers of electrical energy are connected in the consumer circuit. The connecting line 5 can comprise a fuse 8 in a known manner.

Im Bereich des Pluspols 3 des Akkumulators 2 ist die erfindungsgemäße Vorrichtung 9 zur elektrischen Trennung des Akkumulators 2 von der angeschlossenen Schaltung angeordnet.The device 9 according to the invention for electrically separating the battery 2 from the connected circuit is arranged in the region of the positive pole 3 of the battery 2.

Wie in Fig. 2 zu sehen, ist die Trennvorrichtung 9 in einem Gehäuse 10 angeordnet, in welches Isolierdurchführungen 11 hineinführen. Im Bereich der Isolierdurchführungen 11 sind Anschlußbolzen 12 angeordnet. An die Anschlußbolzen 12 wird die Anschlußleitung 5 von der elektrischen Schaltung zum Pluspol 3 des Akkumulators 2 angeschlossen. Im Inneren des Gehäuses 10 umfaßt die Trennvorrichtung 9 einen Bolzen 13, welcher einen definierten elektrischen Leiter darstellt. Wird die Trennvorrichtung 9 über die Anschlußbolzen 12 in die Anschlußleitung 5 vom Pluspol 3 des Akkumulators 2 zur Verbraucherschaltung 7 eingesetzt, so wird durch den Bolzen 13 die elektrische Leitung der elektrischen Energie vom Akkumulator 2 zur Verbraucherschaltung 7 gewährleistet. An dem Bolzen 13 ist eine Sprengladung 14 angeordnet, an welcher wiederum ein Zünder 15 angeordnet ist. Der Zünder 15 weist Aktivierungsanschlüsse 16 auf.As can be seen in FIG. 2, the separating device 9 is arranged in a housing 10, into which insulating bushings 11 lead. In the area of the insulating bushings 11, connecting bolts 12 are arranged. The connecting line 5 from the electrical circuit to the positive pole 3 of the accumulator 2 is connected to the connecting bolts 12. In the interior of the housing 10, the separating device 9 comprises a bolt 13, which represents a defined electrical conductor. If the separating device 9 is inserted via the connection bolts 12 into the connection line 5 from the positive pole 3 of the accumulator 2 to the consumer circuit 7, the electrical conduction of the electrical energy from the accumulator 2 to the consumer circuit 7 is ensured by the bolt 13. An explosive charge 14 is arranged on the bolt 13, on which in turn an igniter 15 is arranged. The igniter 15 has activation connections 16.

Über die Aktivierungsanschlüsse 16 wird ein Zündimpuls an den Zünder 15 zugeführt, welcher in an sich bekannter Weise die Sprengladung 1 zur Explosion bringt. Der Bolzen 13 wird dann in definierter Weise durchtrennt. Da das Gehäuse 10 aus Metall oder einem explosionssicheren Kunststoff hergestellt ist, ist die Sprengung ungefährlich. Da der Bolzen 13 durch die Zündung der Sprengladung 14 in definierter Weise durchtrennt wird, ist die elektrische Leitung vom Pluspol 3 des Akkumulators 2 zur Verbraucherschaltung 7 sicher durchtrennt.An ignition pulse is supplied to the igniter 15 via the activation connections 16, which causes the explosive charge 1 to explode in a manner known per se. The bolt 13 is then cut in a defined manner. Since the housing 10 is made of metal or an explosion-proof plastic, the explosion is harmless. Since the bolt 13 is severed in a defined manner by the ignition of the explosive charge 14, the electrical line is safely cut through from the positive pole 3 of the accumulator 2 to the consumer circuit 7.

Für die Trennvorrichtung 9 sind alternative Ausführungsformen denkbar. In Abhängigkeit von der verwendeten Sprengladung 14 kann die Trennvorrichtung 9 beispielsweise direkt auf eine Anschlußleitung wirken, ohne daß ein elektrisch leitender Bolzen 13 dazwischengesetzt werden muß. In diesem Falle kann die Trennvorrichtung durch Anordnen der Sprengladung an einer Leitung und dem Einfassen der Vorrichtung in einem Gehäuse ohne weiteres nachgerüstet werden. Selbstverständlich ist die Nachrüstung auch durch Trennung der Anschlußleitung und Anschluß an eine wie gezeigte Ausführungsform möglich.Alternative embodiments are conceivable for the separating device 9. Depending on the explosive charge 14 used, the separating device 9 can, for example, act directly on a connecting line without an electrically conductive bolt 13 having to be placed in between. In this case, the separating device can be easily retrofitted by arranging the explosive charge on a line and enclosing the device in a housing. Retrofitting is of course also possible by separating the connecting line and connecting to an embodiment as shown.

Der Zündimpuls kann ein direkt in den sonstigen Überwachungseinrichtungen des Fahrzeugs vorhandener Impuls sein, er kann ebenso von einer nicht gezeigten, eigens zum Betrieb der Trennvorrichtung 9 vorgesehenen Steuerschaltung infolge einer gesonderten Parameterüberwachung abgegeben werden.The ignition pulse can be a pulse present directly in the other monitoring devices of the vehicle, it can also be emitted by a control circuit, not shown, which is provided specifically for operating the separating device 9 as a result of separate parameter monitoring.

Die in der Figur 3 gezeigte Trennvorrichtung 9 umfaßt ein Gehäuse 10, welches im wesentlichen ein zylindrisches Gehäuse ist, welches an beiden Enden offen und darüber hinaus auf einer Seite mit Schlitzen versehen ist. In das Gehäuse 10 sind die Anschlußrohrhülsen 17 und 18 eingesetzt, zwischen welchen eine Isolierscheibe 19 angeordnet ist. Die Anschlußrohrhülsen 17 und 18 sind somit elektrisch voneinander isoliert. An der Anschlußrohrhülse 17 ist ein Batterieanschluß 20 angeordnet, welcher das zylindrische Gehäuse 10 an einem dafür vorgesehenen Schlitz durchragt. An der Anschlußrohrhülse 18 ist ein entsprechender Verbraucheranschluß 21 angeordnet, der im Ausführungsbeispiel ein Anschlußgewindebolzen ist. Das zylindrische Gehäuse 10 ist an beiden Enden mittels Schraubdeckeln 22 bzw. 23 verschlossen, wobei der Schraubdeckel 22 eine Durchgangsbohrung für den Druckausgleich aufweist, und der Schraubdeckel 23 eine Durchgangsbohrung für den Zündanschluß des Sprengelementes aufweist. In der Anschlußrohrhülse 18 ist darüber hinaus eine zwischen beiden Enden angeordnete Entlüftungsbohrung 24 vorgesehen. Beide Anschlußrohrhülsen sind elektrisch mittels des Kontaktbolzens 25 verbunden, der zu diesem Zweck als Kontaktflächen an beiden Enden mit Kontaktlamellen 26 versehen ist. Im gezeigten Ausführungsbeispiel sind darüber hinaus an den Kontaktstellen in den Anschlußrohrhülsen Kontaktbuchsen 27 angeordnet. Die Anschlußrohrhülsen 17 und 18 sind somit mittels des Kontaktbolzens 25 elektrisch miteinander verbunden, so daß ein Stromfluß vom Batterieanschluß 20 über die Anschlußrohrhülse 17, die Kontaktbuchse 27, die Kontaktlamellen 26, den Kontaktbolzen 25, die Kontaktlamellen 26, die Kontaktbuchse 27, die Anschlußrohrhülse 18 bis zum Verbraucheranschluß 21 möglich ist. An dem dem Kontaktbolzen 25 entgegengesetzten Ende der Anschlußrohrhülse 18 ist das Sprengelement 28, bestehend aus Sprengladung und Zünder, angeordnet. Der Anschluß 29 des Sprengelementes 28 durchragt den Schraubdeckel 23 und kann mit einer entsprechenden Zündleitung verbunden werden. Zwischen dem Sprengelement 28 und dem Kontaktbolzen 25 ist ein Isolierbolzen 30, beispielsweise aus Kunststoff, angeordnet. Soll der elektrische Stromfluß in der beschriebenen Weise zwischen dem Batterieanschluß 20 und dem Verbraucheranschluß 21 unterbrochen werden, wird das Sprengelement 28 gezündet und bewirkt eine Verschiebung des Kontaktbolzens 25 in die von der Sprengladung entgegengesetzten Richtung, bis der Kontaktbolzen 25 die Anschlußrohrhülse 18 vollständig verlassen hat. Der sich in Vorschubrichtung vor dem Kontaktbolzen aufbauende Luftdruck kann durch die Durchgangsbohrung im Schraubdeckel 22 entweichen. Zwischen den Kontaktbuchsen bzw. Kontaktflächen kann es leicht zu einer Funkenentladung kommen. Da aber der Isolierbolzen 30 aufgrund der Sprengelementzündung die Stelle des Kontaktbolzens eingenommen hat, ist der Raum für eine derartige Funkenentladung verschlossen.The separating device 9 shown in FIG. 3 comprises a housing 10 which is essentially a cylindrical housing which is open at both ends and is additionally provided with slots on one side. In the housing 10, the connecting tube sleeves 17 and 18 are inserted, between which an insulating washer 19 is arranged. The connecting tube sleeves 17 and 18 are thus electrically insulated from one another. A battery connection 20 is arranged on the connecting tube sleeve 17 and extends through the cylindrical housing 10 at a slot provided for this purpose. A corresponding consumer connection 21 is arranged on the connecting tube sleeve 18, which in the exemplary embodiment is a connecting threaded bolt. The cylindrical housing 10 is closed at both ends by means of screw covers 22 and 23, the screw cover 22 having a through hole for pressure equalization, and the screw cover 23 having a through hole for the ignition connection of the detonating element. In addition, a vent hole 24 arranged between the two ends is provided in the connecting tube sleeve 18. Both connection tube sleeves are electrical by means of Contact pin 25 connected, which is provided for this purpose as contact surfaces at both ends with contact blades 26. In the exemplary embodiment shown, contact sockets 27 are also arranged at the contact points in the connecting tube sleeves. The connecting tube sleeves 17 and 18 are thus electrically connected to one another by means of the contact pin 25, so that a current flow from the battery connection 20 via the connecting tube sleeve 17, the contact socket 27, the contact plates 26, the contact pin 25, the contact plates 26, the contact socket 27, the connecting tube sleeve 18 up to the consumer connection 21 is possible. At the opposite end of the contact pin 25 of the connecting tube sleeve 18, the explosive element 28, consisting of explosive charge and detonator, is arranged. The connection 29 of the detonating element 28 projects through the screw cap 23 and can be connected to a corresponding ignition line. An insulating bolt 30, for example made of plastic, is arranged between the explosive element 28 and the contact bolt 25. If the electrical current flow between the battery connection 20 and the consumer connection 21 is to be interrupted, the detonating element 28 is ignited and causes the contact bolt 25 to be displaced in the opposite direction from the explosive charge until the contact bolt 25 has completely left the connecting tube sleeve 18. The air pressure building up in front of the contact pin in the feed direction can escape through the through hole in the screw cap 22. A spark discharge can easily occur between the contact sockets or contact surfaces. However, since the insulating bolt 30 has taken the place of the contact bolt due to the detonating element, the space for such a spark discharge is closed.

Die Trennvorrichtung 9 kann anschließend leicht wieder in den Betriebszustand versetzt werden, indem die Schraubdeckel 22 und 23 abgeschraubt, das Sprengelement 28 ausgewechselt und die Kontaktbolzen 25 bzw. Isolierbolzen 30 in ihre Ausgangsposition zurückgeschoben werden. Dann werden die Schraubdeckel 22 und 23 wieder aufgeschraubt und die Trennvorrichtung 9 ist wieder in ihrem ursprünglichen Betriebszustand.The separating device 9 can then easily be put back into the operating state by unscrewing the screw caps 22 and 23, replacing the detonating element 28 and pushing the contact bolts 25 or insulating bolts 30 back into their starting position. Then the screw caps 22 and 23 are screwed on again and the separating device 9 is again in its original operating state.

Mit nur wenigen Teilen ist eine überaus sichere und vor allen Dingen wiederverwendbare Ausführung der erfindungsgemäßen Trennvorrichtung realisierbar.An extremely safe and, above all, reusable design of the separating device according to the invention can be realized with only a few parts.

Bezugszeichenliste:Reference symbol list:

11
SchaltkreisCircuit
22nd
Akkumulatoraccumulator
33rd
PluspolPositive pole
44th
MinuspolNegative pole
55
AnschlußleitungConnecting cable
66
AnschlußleitungConnecting cable
77
VerbraucherschaltungConsumer circuit
88th
SicherungFuse
99
TrennvorrichtungSeparator
1010th
Gehäusecasing
1111
IsolierdurchführungInsulation bushing
1212th
AnschlußbolzenConnecting bolts
1313
Bolzenbolt
1414
SprengladungExplosive charge
1515
ZünderDetonator
1616
Anschlüsseconnections
1717th
AnschlußrohrhülseConnection tube sleeve
1818th
AnschlußrohrhülseConnection tube sleeve
1919th
IsolierscheibeInsulating washer
2020th
BatterieanschlußBattery connection
2121
VerbraucheranschlußConsumer connection
2222
SchraubdeckelScrew cap
2323
SchraubdeckelScrew cap
2424th
EntlüftungsbohrungVent hole
2525th
KontaktbolzenContact bolt
2626
KontaktlamellenContact blades
2727
KontaktbuchseContact socket
2828
SprengelementBlast element
2929
AnschlußConnection
3030th
IsolierbolzenInsulating bolts

Claims (17)

  1. Device for electrical isolation of a rechargeable battery (2) from an electrical circuit (7) which is connected by connecting leads (5, 6) to the positive and negative terminals (3, 4) of said rechargeable battery (2) and has at least one explosive element (28) which is arranged on at least one of the connecting leads (5, 6) which are connected to the positive and negative terminals (3, 4), and which device has at least one detonator (15) and connections (16) for detonator activation, at least one connecting lead (5, 6) having two tubular connecting pieces (17, 18) which are electrically insulated from one another and are electrically connected by means of a contact element (25) which can be moved by an explosion away from at least one of the connecting pieces (17, 18), and the explosive element (28) is arranged on one side of the contact element (25), characterized in that contact surfaces in the form of contact laminates (26) are arranged between the contact element (25) and the tubular connecting pieces (17, 18).
  2. Device according to Claim 1, characterized in that the device is arranged on the connecting lead (5) in the region of the positive terminal (3) of the rechargeable battery (2).
  3. Device according to Claim 1 or 2, characterized in that the tubular pieces (17, 18) are at least partially electrically conductive.
  4. Device according to one of the preceding Claims 1 to 3, characterized in that an insulating disc (19) is arranged between two tubular pieces (17, 18).
  5. Device according to Claim 4, characterized in that the contact element (25) is inserted into the interior of the tubular pieces (17, 18) such that it bridges the insulating disc (19).
  6. Device according to Claim 4 or 5, characterized in that the explosive charge (28) is arranged at the end of a tubular piece (17, 18) opposite the insulating disc (19).
  7. Device according to one of the preceding Claims 1 to 6, characterized in that the contact element (25) is a contact bolt (25).
  8. Device according to Claim 7, characterized in that the external diameter of the contact bolt (25) corresponds substantially to the internal diameter of the tubular connecting pieces (17, 18).
  9. Device according to one of the preceding Claims 1 to 8, characterized in that an insulating element (30) is arranged between the contact element (25) and the explosive element (28).
  10. Device according to Claim 9, characterized in that the insulating element (30) is an insulating bolt (30).
  11. Device according to one of the preceding Claims 1 to 10, characterized in that the explosive element (28) is a compressed-gas generator.
  12. Device according to one of the preceding Claims 1 to 11, characterized in that at least one of the tubular connecting pieces (17, 18) has a vent hole (24).
  13. Device according to one of the preceding Claims 1 to 12, characterized in that a connection (20) for a battery is arranged on one of the tubular connecting pieces (17, 18).
  14. Device according to one of the preceding Claims 1 to 13, characterized in that a connection (21) for a load is arranged on one of the tubular connecting pieces (17, 18).
  15. Device according to one of the preceding Claims 1 to 14, characterized in that the individual elements of the device (9) are arranged in a housing (10).
  16. Device according to Claim 15, characterized in that the housing (10) is produced from metal.
  17. Device according to one of the preceding Claims 1 to 16, characterized by a control device for emitting a detonation pulse.
EP94112677A 1993-08-21 1994-08-13 Device for electrical disconnection Expired - Lifetime EP0639844B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4328174 1993-08-21
DE19934328174 DE4328174A1 (en) 1993-08-21 1993-08-21 Method and device for electrical disconnection (isolation)
DE9401486U DE9401486U1 (en) 1994-01-29 1994-01-29 Electrical isolation device
DE9401486U 1994-01-29

Publications (2)

Publication Number Publication Date
EP0639844A1 EP0639844A1 (en) 1995-02-22
EP0639844B1 true EP0639844B1 (en) 1997-07-16

Family

ID=25928818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112677A Expired - Lifetime EP0639844B1 (en) 1993-08-21 1994-08-13 Device for electrical disconnection

Country Status (2)

Country Link
EP (1) EP0639844B1 (en)
DE (1) DE59403366D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736760B1 (en) * 1995-07-13 1997-08-22 Carrier Kheops Bac ELECTRICAL SAFETY SWITCHING DEVICE FOR VEHICLE
DE19606450A1 (en) * 1996-02-21 1997-08-28 Bayerische Motoren Werke Ag Vehicle electrical system
DE19757026A1 (en) 1997-12-20 1999-07-01 Leonische Drahtwerke Ag Electrical fuse
FR2775539B1 (en) * 1998-02-27 2000-03-31 Renault CIRCUIT-BREAKER DEVICE FOR A MOTOR VEHICLE
FR2963500B1 (en) 2010-08-02 2012-09-21 Michelin Soc Tech CONNECTION DEVICE COMPRISING A CONTROL UNIT, BATTERY BOX COMPRISING SUCH A CONNECTION DEVICE, AND METHOD FOR CONTROLLING SUCH A BATTERY BOX.
FR2963475B1 (en) * 2010-08-02 2012-09-21 Michelin Soc Tech DEVICE FOR CONNECTING A BATTERY TO AN ELECTRIC OR HYBRID VEHICLE, AND BATTERY BOX COMPRISING SAID CONNECTION DEVICE.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB559923A (en) * 1942-09-18 1944-03-10 Oldham & Son Ltd Improvements in and relating to electrical cut outs
ATE30360T1 (en) * 1983-08-09 1987-11-15 S & C Electric Co MULTIPLE BREAKING HIGH SPEED ELECTRIC SWITCH.
US4691085A (en) * 1985-12-19 1987-09-01 S&C Electric Company High voltage interrupting switch with improved contact connection arrangement and method
FR2616958A1 (en) * 1987-06-22 1988-12-23 Sercy Michel Break-upon-impact terminal for vehicle battery

Also Published As

Publication number Publication date
EP0639844A1 (en) 1995-02-22
DE59403366D1 (en) 1997-08-21

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