EP1256775B1 - Pyrotechnic igniter with an incorporated electronic circuit - Google Patents

Pyrotechnic igniter with an incorporated electronic circuit Download PDF

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Publication number
EP1256775B1
EP1256775B1 EP02009851A EP02009851A EP1256775B1 EP 1256775 B1 EP1256775 B1 EP 1256775B1 EP 02009851 A EP02009851 A EP 02009851A EP 02009851 A EP02009851 A EP 02009851A EP 1256775 B1 EP1256775 B1 EP 1256775B1
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EP
European Patent Office
Prior art keywords
pyrotechnic
region
carrier arrangement
ignition device
ignition
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EP02009851A
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German (de)
French (fr)
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EP1256775A3 (en
EP1256775A2 (en
Inventor
Thomas Görnig
Holger Wulff
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Conti Temic Microelectronic GmbH
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Conti Temic Microelectronic GmbH
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Publication of EP1256775A2 publication Critical patent/EP1256775A2/en
Publication of EP1256775A3 publication Critical patent/EP1256775A3/en
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Publication of EP1256775B1 publication Critical patent/EP1256775B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/121—Initiators with incorporated integrated circuit

Definitions

  • the invention relates to a pyrotechnic ignition device according to the preamble of claim 1 with integrated electronic assembly, in particular for triggering an occupant protection device, which has a pyrotechnic region for a pyrotechnic active mass and an electrically ignitable ignition bridge and a usually separated by a protective wall electronics area for an electronic module, in particular the ignition electronics having.
  • Such an ignition device can be found for example in DE 198 36 280 C1.
  • separate contact elements are provided in the protective wall, which must be contacted on both sides of the protective wall.
  • no one-piece carrier assembly for the ignition as well as electronics area can be used.
  • DE 198 36 278 C2 teaches an ignition device with a carrier assembly for the ignition bridge and the electronics assembly, in which the entire carrier assembly in the primer with the pyrotechnic active mass disposed, but partially occupied by a damping layer of shock absorbing material, preferably at least in the electronics assembly is.
  • Printed circuit boards as a carrier for the entire ignition device including ignition bridge and electronic assembly, as they can be found, for example, in EP 0555651 B1, are cheaper, but do not offer a comparably good protection for the electronic assembly against influences pressure, temperature or forces during initiation of the ignition device.
  • the ignition device is usually connected to the electronic module via a data bus with a central unit and other ignition devices, for example in an ignition for occupant protection devices and even after ignition remain limited function, but at least not disturb the data exchange on the bus.
  • Pyrotechnic ignition device with integrated electronic assembly are known for example from DE 199 40 201 C1, DE 196 10 799 C1, WO 97/21067, DE 198 36 278 and DE 196 53 115 A1.
  • the object of the invention is therefore to provide an easily manufactured ignition device, which ensures that the electronics assembly remains largely functional even after the triggering of the ignition device, at least does not hinder a data transfer on the connected bus system.
  • the basic idea is to provide the carrier arrangement with at least one decoupling point for the mechanical decoupling of the part of the carrier arrangement located in the pyrotechnic region from the rest of the carrier arrangement. This is done by the rigidity of the support assembly between the part located in the pyrotechnic region and the rest of the carrier assembly in the decoupling point is reduced so far that this decoupling point is yielding at least when exceeding a predetermined limit load.
  • the decoupling point can be designed for this purpose, for example, as a bending or Sollburchstelle.
  • the carrier arrangement has at least partially an envelope of pressure-absorbing material and moreover at least partially, preferably completely, in the electronics area with a second material which is harder than the softer pressure-absorbing material in the pyrotechnic area.
  • the protective wall and the envelope of the carrier assembly in the electronics area are integrally formed from this harder material.
  • the separation points and / or the envelope of the carrier assembly in the pyrotechnic area are dimensioned so that they separate the carrier assembly only when exceeding a predetermined thermal and / or mechanical limit load in pyrotechnic or on the support assembly during the burning of the pyrotechnic active mass.
  • FIG. 1 shows a sectional view through a particularly preferred embodiment of the ignition device, as it is to be used as an igniter for a gas generator of an occupant protection device, for example.
  • An airbag in a motor vehicle.
  • the ignition device consists of an ignition bridge 1, a pyrotechnic active mass 3, a carrier assembly 2 for the ignition bridge 1 on the one hand and the electronics assembly 6a-6c on the other hand and housing parts 7a and 7b.
  • the ignition device is subdivided into a pyrotechnic region A and an electronics region B, wherein in the pyrotechnic region A the pyrotechnic active mass 3, the ignition bridge 1 and also a part 2a of the carrier arrangement 2 are arranged.
  • the ignition bridge 1 here is preferably not arranged directly on the carrier assembly 2, but a separate carrier body 11, which is the subject of a simultaneously filed parallel application of the Applicant and is referred to its advantages and structure. For the particular embodiment of the carrier assembly 2 with separation points 23, however, this is irrelevant.
  • the pyrotechnic region A is separated from the electronics region B, wherein the separation is formed either by a protective wall 7c (see Fig. 3) or as a particularly preferred embodiment directly from a sheath 5 of the electronics area B with a corresponding pressure and heat resistant material.
  • the carrier assembly 2 has as a special feature at least one separation point 23 for separating the located in the pyrotechnic portion 2a of the carrier assembly 2 of the remaining carrier assembly 2b after the ignition of the pyrotechnic active mass 3, wherein the separation points 23 are preferably dimensioned so that they only when exceeded a predetermined thermal and / or mechanical limit load during the burning of the pyrotechnic active mass 3, the carrier assembly 2 separate.
  • the separation that has taken place can also be detected on the remaining and interrupted line ends on the carrier arrangement 2. The separation ensures that no or at least no forces exceeding the limit load are transmitted via the carrier arrangement 2 to the electronic module 6a-6c.
  • the carrier arrangement 2 can be configured, for example, of ceramic material with corresponding metallic deposits of conductor track structures and contact zones, and the separation point 23 can be formed there as a predetermined breaking point, as shown in plan view in FIG.
  • the electronic assembly 6a to 6c consists of electronic components for controlling 6a of the ignition via an energy and data bus to which the ignition device is connected via the contacts 8, a protection circuit 6c against interference on the data bus and an ignition energy storage, in particular a firing capacitor 6b and optionally other components. It is crucial that the electronic assembly even after the separation of the pyrotechnic part 2a of the support assembly with the ignition bridge 1 still continue to perform its other functions, ie in particular the self-diagnosis and data bus communication, but at least not hindered the data exchange on the bus system.
  • the carrier assembly 2 may also consist of two separate parts 2a and 2b, which are connected for example by a solder connection before the ignition of the pyrotechnic active mass 3 and melts due to the heat during combustion.
  • the Lotstelle (s) as an alternative embodiment of the separation point (s) 23 is / (are) to be dimensioned so that it meets both mechanical and thermal requirements in motor vehicle operation and can also conduct the ignition to the ignition bridge 1, without melting , However, since the liberated during combustion of the pyrotechnic active mass 3 amount of heat significantly above these loads, the Lotstelle can be dimensioned with appropriate security, especially since already a melting of Lotstelle enough to the Forwarding forces from the pyrotechnic area A in the electronics area B on the support assembly 2 to prevent.
  • the support assembly 2 is also preferably in the pyrotechnic region A at least partially enveloped by a pressure-absorbing material 4, which is softer than the material of the protective wall 7c and the enclosure 5 in the electronics area B.
  • This pressure-absorbing material 4 for example.
  • a Softglobtop protects by its certain plastic or elastic deformability both located in the pyrotechnic region A part 2a of the support assembly 2 and the protective wall 7c and the enclosure 5, the pressure resistance therefore dimensioned smaller or the overall security can be further increased.
  • This pressure-absorbing material 4 is elastic so far that at least when exceeding the limit load on the pyrotechnic part 2a of the carrier assembly 2, the separation points are severed.
  • the length of the part 2a of the carrier assembly 2 in the pyrotechnic region A is shorter than the length of that part 2b of the carrier assembly 2 in the electronics area B, whereby the leverage improves.
  • the separating points 23 are preferably arranged on the carrier arrangement 2 in the transition region between the pyrotechnic region A and the region of the carrier arrangement 2 enclosed by the protective wall 7c or the envelope 5.
  • 3 outlines a preferred positioning on an exemplary embodiment with a separate protective wall 7c between electronics area B and pyrotechnic area A with a carrier arrangement 2 (consisting of the parts 2a and 2b) through both areas A and B and through the protective wall 7c.
  • FIG. 3 also outlines the second alternative of a decoupling point in the form of a bending point 23, in particular a flexurally elastic taper, which at least in some cases already protects adequate protection of the electronic subassembly 6a-6c from mechanical loads from the pyrotechnic region A instead of the complete disconnection thanks to the decoupling point (s) 23, no or no critical mechanical loads are transmitted from the pyrotechnic region A into the electronics area.

Description

Die Erfindung betrifft eine pyrotechnische Zündeinrichtung gemäß dem Oberbegriff des Anspruchs 1 mit integrierter Elektronikbaugruppe, insbesondere zum Auslösen einer Insassenschutzeinrichtung, welche einen Pyrotechnikbereich für eine pyrotechnische Wirkmasse und eine elektrisch zündbare Zündbrücke sowie einen üblicherweise durch eine Schutzwand davon getrennten Elektronikbereich für eine Elektronikbaugruppe, insbesondere die Zündelektronik aufweist.The invention relates to a pyrotechnic ignition device according to the preamble of claim 1 with integrated electronic assembly, in particular for triggering an occupant protection device, which has a pyrotechnic region for a pyrotechnic active mass and an electrically ignitable ignition bridge and a usually separated by a protective wall electronics area for an electronic module, in particular the ignition electronics having.

Eine derartige Zündeinrichtung ist beispielsweise der DE 198 36 280 C1 zu entnehmen. Um die Elektronikbaugruppe im Elektronikbereich mit der Zündbrücke im Pyrotechnikbereich zu verbinden, sind separate Kontaktelemente in der Schutzwand vorgesehen, die beidseitig der Schutzwand kontaktiert werden müssen. Insebsondere kann keine einstückige Trägeranordnung für den Zünd- wie auch Elektronikbereich verwendet werden.Such an ignition device can be found for example in DE 198 36 280 C1. In order to connect the electronics module in the electronics sector with the ignition bridge in the pyrotechnic sector, separate contact elements are provided in the protective wall, which must be contacted on both sides of the protective wall. In particular, no one-piece carrier assembly for the ignition as well as electronics area can be used.

Die DE 198 36 278 C2 lehrt eine Zündeinrichtung mit einer Trägeranordnung für die Zündbrücke als auch die Elektronikbaugruppe, bei der die gesamte Trägeranordnung in der Zündkapsel mit der pyrotechnischen Wirkmasse angeordnet, jedoch durch eine Dämpfungsschicht aus stoßabsorbierendem Material teilweise, vorzugsweise zumindest im Bereich der Elektronikbaugruppe belegt ist.DE 198 36 278 C2 teaches an ignition device with a carrier assembly for the ignition bridge and the electronics assembly, in which the entire carrier assembly in the primer with the pyrotechnic active mass disposed, but partially occupied by a damping layer of shock absorbing material, preferably at least in the electronics assembly is.

Derart einfache Trägeranordnungen, bspw. Leiterplatten, als Träger für die gesamte Zündeinrichtung einschließlich Zündbrücke und Elektronikbaugruppe, wie sie bspw. auch in der EP 0 555 651 B1 zu entnehmen sind, sind preiswerter, bieten jedoch nicht einen vergleichbar guten Schutz für die Elektronikbaugruppe gegen Einwirkungen von Druck, Temperatur oder Kräften während der Auslösung der Zündeinrichtung. Die Zündeinrichtung ist jedoch mit der Elektronikbaugruppe üblicherweise über einen Datenbus mit einer Zentraleinheit und anderen Zündeinrichtungen verbunden, beispielsweise in einem Zündbus für Insassenschutzeinrichtungen und sollen auch nach der Zündung noch begrenzt funktionsfähig bleiben, zumindest aber den Datenaustausch auf dem Bus nicht stören.Such simple carrier arrangements, for example. Printed circuit boards, as a carrier for the entire ignition device including ignition bridge and electronic assembly, as they can be found, for example, in EP 0555651 B1, are cheaper, but do not offer a comparably good protection for the electronic assembly against influences pressure, temperature or forces during initiation of the ignition device. However, the ignition device is usually connected to the electronic module via a data bus with a central unit and other ignition devices, for example in an ignition for occupant protection devices and even after ignition remain limited function, but at least not disturb the data exchange on the bus.

Pyrotechnische Zündeinrichtung mit integrierter Elektronikbaugruppe sind beispielsweise auch aus der DE 199 40 201 C1, DE 196 10 799 C1, WO 97/21067, DE 198 36 278 und DE 196 53 115 A1 bekannt.Pyrotechnic ignition device with integrated electronic assembly are known for example from DE 199 40 201 C1, DE 196 10 799 C1, WO 97/21067, DE 198 36 278 and DE 196 53 115 A1.

Aufgabe der Erfindung ist es daher, eine einfach herstellbare Zündeinrichtung anzugeben, bei welcher sichergestellt ist, dass die Elektronikbaugruppe auch nach der Auslösung der Zündeinrichtung noch weitgehend funktionsfähig bleibt, zumindest eine Datenübertragung auf dem angeschlossenen Bussystem nicht behindert. Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.The object of the invention is therefore to provide an easily manufactured ignition device, which ensures that the electronics assembly remains largely functional even after the triggering of the ignition device, at least does not hinder a data transfer on the connected bus system. This object is solved by the features of claim 1. Advantageous developments can be found in the dependent claims.

Grundgedanke ist dabei, die Trägeranordnung mit zumindest einer Entkopplungsstelle zur mechanischen Entkopplung des im Pyrotechnikbereich befindlichen Teils der Trägeranordnung von der restlichen Trägeranordnung zu versehen. Dies erfolgt, indem die Steifigkeit der Trägeranordnung zwischen dem im Pyrotechnikbereich befindlichen Teil und der restlichen Trägeranordnung in der Entkopplungsstelle soweit herabgesetzt ist, dass diese Entkopplungsstelle zumindest bei Überschreitung einer vorgegebenen Grenzbelastung nachgiebig ist. Die Entkopplungsstelle kann dazu beispielsweise als Biege- oder Sollburchstelle ausgestaltet sein.The basic idea is to provide the carrier arrangement with at least one decoupling point for the mechanical decoupling of the part of the carrier arrangement located in the pyrotechnic region from the rest of the carrier arrangement. This is done by the rigidity of the support assembly between the part located in the pyrotechnic region and the rest of the carrier assembly in the decoupling point is reduced so far that this decoupling point is yielding at least when exceeding a predetermined limit load. The decoupling point can be designed for this purpose, for example, as a bending or Sollburchstelle.

So muß auf die bauliche Trennung von Elektronikbereich und Pyrotechnikbereich, bspw. durch eine Schutzwand, nicht verzichtet werden und entsteht dennoch eine einfache Trägeranordnung sowohl für die Elektronikbaugruppe im Elektronikbereich als auch die Zündbrücke im Pyrotechnikbereich, die ggfs. durch die Schutzwand hindurchzuführen ist, jedoch mit Entkopplungsstellen versehen wird, die nach der Zündung der pyrotechnischen Wirkmasse, also nach dem eigentlichen Zündimpuls an die Zündbrücke, jedoch vorzugsweise noch während dem Abbrand der pyrotechnischen Wirkmasse den inm Elektronikbereich befindlichen Teil der Trägeranordnung mechanisch vom Pyrotechnikbereich entkoppeln, also eine Weiterleitung von mechanischen Belastungen zumindest oberhalb einer zugelassenen Grenzbelastung verhindern.So must on the structural separation of electronics and pyrotechnics, for example, by a protective wall, not be waived and yet creates a simple carrier assembly for both the electronics assembly in the electronics sector and the ignition bridge in the pyrotechnic field, which is if necessary. Pass through the protective wall, but with Decoupling points is provided, which decouple after ignition of the pyrotechnic active mass, so after the actual ignition pulse to the ignition bridge, but preferably still during the combustion of the pyrotechnic active material located inm electronics part of the support assembly mechanically from the pyrotechnics, ie a transmission of mechanical loads at least above prevent an authorized limit load.

Die Trägeranordnung weist vorzugsweise im Pyrotechnikbereich zumindest teilweise eine Umhüllung aus druckabsorbierendem Material und darüber hinaus im Elektronikbereich zumindest teilweise, vorzugsweise vollständige Umhüllung mit einem zweiten Material auf, welches härter ist als das weichere druckabsorbierende Material im Pyrotechnikbereich. Vorzugsweise werden die Schutzwand und die Umhüllung der Trägeranordnung im Elektronikbereich einstückig aus diesem härteren Material ausgebildet.In the pyrotechnic region, the carrier arrangement has at least partially an envelope of pressure-absorbing material and moreover at least partially, preferably completely, in the electronics area with a second material which is harder than the softer pressure-absorbing material in the pyrotechnic area. Preferably, the protective wall and the envelope of the carrier assembly in the electronics area are integrally formed from this harder material.

In einer bevorzugten Ausgestaltung sind die Trennstellen und/oder die Umhüllung der Trägeranordnung im Pyrotechnikbereich das so dimensioniert, dass sie nur bei Überschreitung einer vorgegebenen thermischen und/oder mechanischen Grenzbelastung im Pyrotechnikbereich oder an der Trägeranordnung während des Abbrands der pyrotechnischen Wirkmasse die Trägeranordnung trennen.In a preferred embodiment, the separation points and / or the envelope of the carrier assembly in the pyrotechnic area are dimensioned so that they separate the carrier assembly only when exceeding a predetermined thermal and / or mechanical limit load in pyrotechnic or on the support assembly during the burning of the pyrotechnic active mass.

Die Erfindung soll nachfolgend anhand von Ausführungsbeispielen und Figuren näher erläutert werden. Kurze Beschreibung der Figuren:

Figur 1
Schnitt durch eine Zündeinrichtung mit einer Trägeranordnung mit einer Trennstelle zwischen Pyrotechnikbereich und Elektronikbereich
Figur 2
Draufsicht auf die Trägeranordnung mit den Sollbruchstellen
Figur 3
mögliche Position der Sollbruchstelle bzw. Biegestelle an der Trägeranordnung
The invention will be explained in more detail with reference to embodiments and figures. Brief description of the figures:
FIG. 1
Section through an ignition device with a carrier assembly with a separation point between pyrotechnics and electronics area
FIG. 2
Top view of the carrier assembly with the predetermined breaking points
FIG. 3
possible position of the predetermined breaking point or bending point on the carrier arrangement

Die Figur 1 zeigt eine Schnittdarstellung durch eine besonders bevorzugte Ausgestaltung der Zündeinrichtung, wie sie als Zünder für einen Gasgenerator einer Insassenschutzeinrichtung, bspw. eines Airbags, in einem Kraftfahrzeug eingesetzt werden soll.1 shows a sectional view through a particularly preferred embodiment of the ignition device, as it is to be used as an igniter for a gas generator of an occupant protection device, for example. An airbag, in a motor vehicle.

Die Zündeinrichtung besteht aus einer Zündbrücke 1, einer pyrotechnischen Wirkmasse 3, einer Trägeranordnung 2 für die Zündbrücke 1 einerseits und die Elektronikbaugruppe 6a-6c andererseits sowie Gehäuseteilen 7a und 7b.The ignition device consists of an ignition bridge 1, a pyrotechnic active mass 3, a carrier assembly 2 for the ignition bridge 1 on the one hand and the electronics assembly 6a-6c on the other hand and housing parts 7a and 7b.

Die Zündeinrichtung ist in einen Pyrotechnikbereich A und einen Elektronikbereich B unterteilt, wobei im Pyrotechnikbereich A die pyrotechnische Wirkmasse 3, die Zündbrücke 1 sowie ein Teil 2a der Trägeranordnung 2 angeordnet sind.The ignition device is subdivided into a pyrotechnic region A and an electronics region B, wherein in the pyrotechnic region A the pyrotechnic active mass 3, the ignition bridge 1 and also a part 2a of the carrier arrangement 2 are arranged.

Die Zündbrücke 1 ist hierbei vorzugsweise nicht unmittelbar auf der Trägeranordnung 2, sondern einem gesonderten Trägerkörper 11 angeordnet, der Gegenstand einer zeitgleich eingereichten Parallelanmeldung der Anmelderin ist und auf dessen Vorteile und Aufbau verwiesen wird. Für die besondere Ausgestaltung der Trägeranordnung 2 mit Trennstellen 23 ist dies jedoch unerheblich.The ignition bridge 1 here is preferably not arranged directly on the carrier assembly 2, but a separate carrier body 11, which is the subject of a simultaneously filed parallel application of the Applicant and is referred to its advantages and structure. For the particular embodiment of the carrier assembly 2 with separation points 23, however, this is irrelevant.

Der Pyrotechnikbereich A ist vom Elektronikbereich B abgetrennt, wobei die Abtrennung entweder durch eine Schutzwand 7c (vgl. Fig. 3) oder als besonders bevorzugte Ausgestaltung direkt aus einer Umhüllung 5 des Elektronikbereichs B mit einem entsprechend druck- und hitzebeständigen Material ausgebildet wird.The pyrotechnic region A is separated from the electronics region B, wherein the separation is formed either by a protective wall 7c (see Fig. 3) or as a particularly preferred embodiment directly from a sheath 5 of the electronics area B with a corresponding pressure and heat resistant material.

Die Trägeranordnung 2 weist jedoch als Besonderheit zumindest eine Trennstelle 23 zur Abtrennung des im Pyrotechnikbereich befindlichen Teils 2a der Trägeranordnung 2 von der restlichen Trägeranordnung 2b nach der Zündung der pyrotechnischen Wirkmasse 3 auf, wobei die Trennstellen 23 vorzugsweise so dimensioniert sind, dass sie nur bei Überschreitung einer vorgegebenen thermischen und/oder mechanischen Grenzbelastung während des Abbrands der pyrotechnischen Wirkmasse 3 die Trägeranordnung 2 trennen. Die erfolgte Abtrennung kann auch die verbleibenden und unterbrochenen Leitungsenden auf der Trägeranordnung 2 erfasst werden. Die Abtrennung sorgt dafür, dass keine bzw. zumindest keine die Grenzbelastung übersteigenden Kräfte über die Trägeranordnung 2 auf die Elektronikbaugruppe 6a - 6c weitergeleitet werden.However, the carrier assembly 2 has as a special feature at least one separation point 23 for separating the located in the pyrotechnic portion 2a of the carrier assembly 2 of the remaining carrier assembly 2b after the ignition of the pyrotechnic active mass 3, wherein the separation points 23 are preferably dimensioned so that they only when exceeded a predetermined thermal and / or mechanical limit load during the burning of the pyrotechnic active mass 3, the carrier assembly 2 separate. The separation that has taken place can also be detected on the remaining and interrupted line ends on the carrier arrangement 2. The separation ensures that no or at least no forces exceeding the limit load are transmitted via the carrier arrangement 2 to the electronic module 6a-6c.

Die Trägeranordnung 2 kann beispielsweise aus keramischem Material mit entsprechenden metallischen Abscheidungen von Leitbahnstrukturen und Kontaktzonen ausgestaltet sein und die Trennstelle 23 dort als Sollbruchstelle ausgebildet werden, wie dies in der Draufsicht in Figur 2 dargestellt ist.The carrier arrangement 2 can be configured, for example, of ceramic material with corresponding metallic deposits of conductor track structures and contact zones, and the separation point 23 can be formed there as a predetermined breaking point, as shown in plan view in FIG.

Die Elektronikbaugruppe 6a bis 6c besteht aus elektronischen Bauelementen zur Ansteuerung 6a der Zündeinrichtung über einen Energie- und Datenbus, mit dem die Zündeinrichtung über die Kontakte 8 verbunden ist, einer Schutzschaltung 6c gegen Störungen auf dem Datenbus sowie einem Zündenergiespeicher, insbesondere einem Zündkondensator 6b sowie gegebenenfalls weiteren Bauelementen. Entscheidend ist dabei, daß die Elektronikbaugruppe auch nach der Abtrennung des pyrotechnischen Teils 2a der Trägeranordnung mit der Zündbrücke 1 noch weiterhin seine sonstigen Funktionen, also insbesondere die Eigendiagnose und Datenbuskommunikation weiter ausführen kann, zumindest aber den Datenaustausch auf dem Bussystem nicht behindert.The electronic assembly 6a to 6c consists of electronic components for controlling 6a of the ignition via an energy and data bus to which the ignition device is connected via the contacts 8, a protection circuit 6c against interference on the data bus and an ignition energy storage, in particular a firing capacitor 6b and optionally other components. It is crucial that the electronic assembly even after the separation of the pyrotechnic part 2a of the support assembly with the ignition bridge 1 still continue to perform its other functions, ie in particular the self-diagnosis and data bus communication, but at least not hindered the data exchange on the bus system.

Die Trägeranordnung 2 kann auch aus zwei getrennten Teilen 2a und 2b bestehen, die beispielweise durch eine Lotverbindung vor der Zündung der pyrotechnischen Wirkmasse 3 verbunden sind und die aufgrund der Wärmeentwicklung während des Abbrands aufschmilzt. Die Lotstelle(n) als alternative Ausgestaltung der Trennstelle(n) 23 ist/(sind) dabei so zu dimensionieren, dass sie sowohl mechanischen als auch thermischen Anforderungen im Kfz-Betrieb genügt und auch den Zündstrom zur Zündbrücke 1 leiten kann, ohne zu schmelzen. Da jedoch die beim Abbrand der pyrotechnischen Wirkmasse 3 freiwerdende Wärmemenge deutlich über diesen Belastungen liegt, kann die Lotstelle mit entsprechender Sicherheit dimensioniert werden zumal bereits ein Anschmelzen der Lotstelle ausreicht, um die Weiterleitung von Kräften vom Pyrotechnikbereich A in den Elektronikbereich B über die Trägeranordnung 2 zu verhindern.The carrier assembly 2 may also consist of two separate parts 2a and 2b, which are connected for example by a solder connection before the ignition of the pyrotechnic active mass 3 and melts due to the heat during combustion. The Lotstelle (s) as an alternative embodiment of the separation point (s) 23 is / (are) to be dimensioned so that it meets both mechanical and thermal requirements in motor vehicle operation and can also conduct the ignition to the ignition bridge 1, without melting , However, since the liberated during combustion of the pyrotechnic active mass 3 amount of heat significantly above these loads, the Lotstelle can be dimensioned with appropriate security, especially since already a melting of Lotstelle enough to the Forwarding forces from the pyrotechnic area A in the electronics area B on the support assembly 2 to prevent.

Die Trägeranordnung 2 ist zudem vorzugsweise im Pyrotechnikbereich A zumindest teilweise von einem druckabsorbierenden Material 4 umhüllt, welches weicher ist als das Material der Schutzwand 7c bzw. der Umhüllung 5 im Elektronikbereich B. Dieses druckabsorbierenden Material 4, bspw. ein Softglobtop, schützt durch seine gewisse plastische oder elastische Verformbarkeit sowohl den im Pyrotechnikbereich A befindlichen Teil 2a der Trägeranordnung 2 als auch die Schutzwand 7c bzw. die Umhüllung 5, deren Druckbeständigkeit daher geringer dimensioniert bzw. die Gesamtsicherheit weiter erhöht werden kann. Dieses druckabsorbierende Material 4 ist soweit elastisch, dass zumindest bei Überschreitung der Grenzbelastung an dem pyrotechnischen Teil 2a der Trägeranordnung 2 die Trennstellen durchtrennt werden.The support assembly 2 is also preferably in the pyrotechnic region A at least partially enveloped by a pressure-absorbing material 4, which is softer than the material of the protective wall 7c and the enclosure 5 in the electronics area B. This pressure-absorbing material 4, for example. A Softglobtop, protects by its certain plastic or elastic deformability both located in the pyrotechnic region A part 2a of the support assembly 2 and the protective wall 7c and the enclosure 5, the pressure resistance therefore dimensioned smaller or the overall security can be further increased. This pressure-absorbing material 4 is elastic so far that at least when exceeding the limit load on the pyrotechnic part 2a of the carrier assembly 2, the separation points are severed.

Die Länge des Teils 2a der Trägeranordnung 2 im Pyrotechnikbereich A ist kürzer als die Länge desjenigen Teils 2b der Trägeranordnung 2 im Elektronikbereich B, wodurch sich die Hebelwirkung verbessert.The length of the part 2a of the carrier assembly 2 in the pyrotechnic region A is shorter than the length of that part 2b of the carrier assembly 2 in the electronics area B, whereby the leverage improves.

Die Trennstellen 23 sind auf der Trägeranordnung 2 vorzugsweise im Übergangsbereich zwischen Pyrotechnikbereich A und dem von der Schutzwand 7c oder der Umhüllung 5 umschlossenen Bereich der Trägeranordnung 2 angeordnet. Fig. 3 skizziert eine bevorzugte Positionierung an einem Ausführungsbeispiel mit einer separaten Schutzwand 7c zwischen Elektronikbereich B und Pyrotechnikbereich A mit einer Trägeranordnung 2 (bestehend aus den Teilen 2a und 2b) durch beide Bereiche A und B sowie durch die Schutzwand 7c.The separating points 23 are preferably arranged on the carrier arrangement 2 in the transition region between the pyrotechnic region A and the region of the carrier arrangement 2 enclosed by the protective wall 7c or the envelope 5. 3 outlines a preferred positioning on an exemplary embodiment with a separate protective wall 7c between electronics area B and pyrotechnic area A with a carrier arrangement 2 (consisting of the parts 2a and 2b) through both areas A and B and through the protective wall 7c.

Die Figur 3 skizziert zugleich die zweite Alternative einer Entkopplungsstelle in Form einer Biegestelle 23, insbesondere einer biegeelastischen Verjüngung, die zumindest in einigen Anwendungsfällen anstelle der vollständigen Abtrennung bereits einen ausreichenden Schutz der Elektronikbaugruppe 6a - 6c vor mechanischen Belastungen aus dem Pyrotechnikbereich A schützt, da über die Trägeranordnung 2 dank der Entkopplungsstelle(n) 23 keine bzw. keine kritischen mechanischen Belastungen vom Pyrotechnikbereich A in den Elektronikbereich übertragen werden.FIG. 3 also outlines the second alternative of a decoupling point in the form of a bending point 23, in particular a flexurally elastic taper, which at least in some cases already protects adequate protection of the electronic subassembly 6a-6c from mechanical loads from the pyrotechnic region A instead of the complete disconnection thanks to the decoupling point (s) 23, no or no critical mechanical loads are transmitted from the pyrotechnic region A into the electronics area.

Claims (11)

  1. Pyrotechnic ignition device with an integrated electronic assembly, consisting of:
    a) a pyrotechnic region (A) in which a pyrotechnic active mass (3) and an electrically ignitable ignition bridge (1) are arranged;
    b) an electronic region (B) separated therefrom and thus protected against the ignition impact and in which the electronic assembly (6a-6c) is arranged, characterized in that
    c) there is provided a carrier arrangement (2) extending into the pyrotechnic region (A) as well as into the electronic region (B), on which carrier arrangement (2) both the electronic assembly (6a-'6c) and the ignition bridge (1) are arranged and electrically connected; and
    d) the carrier arrangement (2) comprises at least one decoupling point (23) for mechanically decoupling the portion (2a) of the carrier arrangement (2) from the remaining carrier arrangement (2b), said portion (2a) being arranged in the pyrotechnic region.
  2. Pyrotechnic ignition device according to claim 1, characterized in that the rigidity of the carrier arrangement (2) in the decoupling point (23) between the portion (2a) arranged in the pyrotechnic region and the remaining carrier arrangement (2b) is reduced to such an extent that this decoupling point (23) is flexible at least when a predetermined limit load is exceeded.
  3. Pyrotechnic ignition device according to claim 2, characterized in that the decoupling points are configured as points of separation (23), in particular as predetermined breaking points, that separate the portion (2a) of the carrier arrangement (2) from the remaining carrier arrangement (2b) after the ignition of the pyrotechnic active mass (3), said portion (2a) being arranged in the pyrotechnic region.
  4. Pyrotechnic ignition device according to claim 2, characterized in that the decoupling points (23) are configured as bending points, in particular as elastic tapers of the carrier arrangement (2).
  5. Pyrotechnic ignition device according to any one of the preceding claims, characterized in that a protective wall (7c) made of a pressure and heat resistant material is provided between the pyrotechnic region (A) and the electronic region (B).
  6. Pyrotechnic ignition device according to any one of the preceding claims, characterized in that the carrier arrangement (2) in the electronic region (B) is at least partially, preferably completely, covered with a pressure and heat resistant material (5) that separates the pyrotechnic region (A) from the electronic region (B).
  7. Pyrotechnic ignition device according to claims 5 or 6, characterized in that the carrier arrangement (2) in the pyrotechnic region (A) is at least partially covered with a pressure absorbing material (4) that is softer than the material of the protective wall (7c) and of the cover (5) in the electronic region (B), respectively.
  8. Pyrotechnic ignition device according to any one of the preceding claims, characterized in that the length of the portion (2a) of the carrier arrangement in the pyrotechnic region (A) is shorter than the length of the portion (2b) of the carrier arrangement in the electronic region (B).
  9. Pyrotechnic ignition device according to any one of the preceding claims, characterized in that the points of separation (23) on the carrier arrangement are arranged in the transition region between the pyrotechnic region (A) and that region which is enclosed by the protective wall (7c).
  10. Pyrotechnic ignition device according to any one of the preceding claims, characterized in that the points of separation (23) and/or the cover (4) of the carrier arrangement (2) in the pyrotechnic region (A) are dimensioned such that they sever the carrier arrangement (2) only when a predetermined thermal and/or mechanical limit load is exceeded during the combustion of the pyrotechnic active mass (3).
  11. Use of a pyrotechnic ignition device according to any one of the preceding claims for the ignition of passenger safeguards in a passenger protection system, wherein the passenger safeguards are connected via a data bus to each other and to a central processing unit, respectively, for data exchange and comprise a communications circuit for data exchange, which communications circuit is integrated into the electronic assembly and is still able to communicate after the ignition of the ignition device.
EP02009851A 2001-05-12 2002-05-02 Pyrotechnic igniter with an incorporated electronic circuit Expired - Lifetime EP1256775B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10123282A DE10123282A1 (en) 2001-05-12 2001-05-12 Pyrotechnic ignition device with integrated electronics module
DE10123282 2001-05-12

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EP1256775A2 EP1256775A2 (en) 2002-11-13
EP1256775A3 EP1256775A3 (en) 2003-01-02
EP1256775B1 true EP1256775B1 (en) 2006-05-31

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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6907827B2 (en) * 2002-11-14 2005-06-21 Special Devices, Inc. Pyrotechnic initiator having output can with encapsulation material retention feature
DE10321935A1 (en) * 2003-05-15 2004-12-02 Trw Occupant Restraint Systems Gmbh & Co. Kg Data storage system for a vehicle occupant restraint system
US7690303B2 (en) 2004-04-22 2010-04-06 Reynolds Systems, Inc. Plastic encapsulated energetic material initiation device
JP4705550B2 (en) 2006-10-26 2011-06-22 日本化薬株式会社 Gas generator for squib and airbag and gas generator for seat belt pretensioner
US8100043B1 (en) 2008-03-28 2012-01-24 Reynolds Systems, Inc. Detonator cartridge and methods of use
EP2350560B1 (en) 2008-10-24 2016-02-17 Battelle Memorial Institute Electronic detonator system
US8276516B1 (en) 2008-10-30 2012-10-02 Reynolds Systems, Inc. Apparatus for detonating a triaminotrinitrobenzene charge
US8485097B1 (en) 2010-06-11 2013-07-16 Reynolds Systems, Inc. Energetic material initiation device
AU2011268090A1 (en) 2010-06-18 2013-01-31 Battelle Memorial Institute Non-energetics based detonator
JP6765873B2 (en) * 2016-06-29 2020-10-07 株式会社ダイセル Electric circuit breaker
DE102019101236A1 (en) * 2019-01-17 2020-07-23 Liebherr-Components Biberach Gmbh Control device for triggering at least one pyro fuse and energy storage device with such a pyro fuse
US11332254B2 (en) 2019-12-16 2022-05-17 Goodrich Corporation Pyrotechnic energy conversion system for ejection assembly
CN111750746A (en) * 2020-06-12 2020-10-09 贵州久联民爆器材发展股份有限公司九八四四生产分公司 Method and structure for improving transportation and ignition capability of ignition element of electronic detonator
WO2023154306A1 (en) * 2022-02-08 2023-08-17 Schlumberger Technology Corporation Compact igniter

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229632A (en) * 1964-02-10 1966-01-18 Vance F Boswell Ejector breech and firing system
SE456939B (en) * 1987-02-16 1988-11-14 Nitro Nobel Ab SPRAENGKAPSEL
DE4002088C1 (en) 1990-01-25 1990-08-23 Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh, 8261 Aschau, De
ZA946555B (en) 1993-05-28 1995-06-12 Altech Ind Pty Ltd An electric igniter
DE4435319A1 (en) 1994-10-01 1996-04-04 Temic Bayern Chem Airbag Gmbh Ignition unit for a gas generator of a passive restraint system
FR2732455B1 (en) 1995-03-31 1997-06-13 Davey Bickford ELECTROPYROTECHNICAL INITIATOR, PROCESS FOR REALIZING SUCH AN INITIATOR AND SAFETY SYSTEM FOR VEHICLE
WO1997005446A1 (en) 1995-07-26 1997-02-13 Asahi Kasei Kogyo Kabushiki Kaisha Electronic delay detonator
CN1074830C (en) 1995-12-06 2001-11-14 澳瑞凯炸药技术有限公司 Electronic explosives initiating device
DE19610799C1 (en) 1996-03-19 1997-09-04 Siemens Ag Ignition device for triggering a restraint in a motor vehicle
US6079332A (en) * 1996-11-01 2000-06-27 The Ensign-Bickford Company Shock-resistant electronic circuit assembly
US5929368A (en) 1996-12-09 1999-07-27 The Ensign-Bickford Company Hybrid electronic detonator delay circuit assembly
DE19653115B4 (en) 1996-12-19 2005-06-02 Autoliv Development Ab Ignition unit for a vehicle safety device
US5889228A (en) 1997-04-09 1999-03-30 The Ensign-Bickford Company Detonator with loosely packed ignition charge and method of assembly
DE29709390U1 (en) * 1997-05-28 1997-09-25 Trw Repa Gmbh Igniter for a pyrotechnic gas generator and gas generator
DE19805539A1 (en) 1998-02-11 1999-08-12 Lell Peter Dipl Ing Dr Process for igniting explosive or combustible materials
DE19836278C2 (en) * 1998-08-11 2000-07-20 Dynamit Nobel Ag Externally controllable ignition unit with integrated electronics for triggering a restraint system
DE19836280C1 (en) * 1998-08-11 2000-05-11 Telefunken Microelectron Pyrotechnic igniter with integrated electronics to trigger a restraint system
WO2000040917A1 (en) 1999-01-08 2000-07-13 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Control module for triggering units for initiating pyrotechnical elements
US6166452A (en) 1999-01-20 2000-12-26 Breed Automotive Technology, Inc. Igniter
FR2790077B1 (en) 1999-02-18 2001-12-28 Livbag Snc ELECTRO-PYROTECHNIC IGNITER WITH INTEGRATED ELECTRONICS
DE19951720B4 (en) * 1999-06-25 2007-06-06 Delphi Technologies, Inc., Troy Ignition unit with integrated electronics
DE19930904B4 (en) * 1999-07-06 2005-12-29 Orica Explosives Technology Pty. Ltd., Melbourne Electronic trip unit for the initiation of pyrotechnic elements
DE19940200A1 (en) 1999-08-25 2001-04-05 Daimler Chrysler Ag Pyrotechnical ignition system with integrated ignition circuit has component with flat outer surface(s) that is non-conducting in at least some areas acting as bearer for other components
DE19940201C1 (en) 1999-08-25 2001-01-11 Daimler Chrysler Ag Pyrotechnical ignition system with integrated ignition circuit has component with flat outer surface(s) that is non-conducting in at least some areas acting as bearer for other components
US6324979B1 (en) 1999-12-20 2001-12-04 Vishay Intertechnology, Inc. Electro-pyrotechnic initiator
FR2804503B1 (en) * 2000-02-02 2002-11-22 Delta Caps Internat Dci DETONATOR IGNITION MODULE FOR EXPLOSIVE CHARGE. METHOD AND TOOLS FOR MANUFACTURING A DETONATOR EQUIPPED WITH SUCH A MODULE
FR2809806B1 (en) 2000-05-30 2003-01-10 Livbag Snc ELECTRO-PYROTECHNIC INITIATOR WITH A THIN FILM BRIDGE AND A VERY LOW OPERATING ENERGY

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Publication number Publication date
DE50206963D1 (en) 2006-07-06
DE10123282A1 (en) 2002-11-14
US6659010B2 (en) 2003-12-09
US20020166471A1 (en) 2002-11-14
EP1256775A3 (en) 2003-01-02
EP1256775A2 (en) 2002-11-13

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