EP1256776A1 - Zündelement für pyrotechnische Wirkmassen auf einer Schaltungsträgeranordnung angeordnet und über diese mit einer Zündelektronikbaugruppe verbunden - Google Patents
Zündelement für pyrotechnische Wirkmassen auf einer Schaltungsträgeranordnung angeordnet und über diese mit einer Zündelektronikbaugruppe verbunden Download PDFInfo
- Publication number
- EP1256776A1 EP1256776A1 EP02009852A EP02009852A EP1256776A1 EP 1256776 A1 EP1256776 A1 EP 1256776A1 EP 02009852 A EP02009852 A EP 02009852A EP 02009852 A EP02009852 A EP 02009852A EP 1256776 A1 EP1256776 A1 EP 1256776A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition
- ignition element
- circuit carrier
- carrier arrangement
- carrier body
- 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.)
- Granted
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Classifications
-
- 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 an ignition element for pyrotechnic active materials on a Circuit carrier arrangement with an ignition electronics module according to the Preamble of claim 1, as used in particular for triggering Gas generators used by occupant protection devices in motor vehicles become.
- Ignition elements for pyrotechnic active materials have one by applying an electrical voltage ignitable wire on a circuit carrier assembly is arranged, which in turn is also an electronic ignition module to provide the ignition energy and to communicate with a data bus has, such as DE 44 35 319 A1, DE 196 10 799 C1 or WO 97/21067 can be seen.
- a data bus has, such as DE 44 35 319 A1, DE 196 10 799 C1 or WO 97/21067 can be seen.
- the wire there is an increasingly ignitable layer used, which have always been deposited on the circuit carrier arrangement as can be seen from EP 0 555 651 B1 or DE 196 29 104 C1.
- DE 199 40 201 C1 proposes the surface of a for further integration Component, preferably the ignition capacitor, as a circuit carrier use and on this surface by depositing conductor tracks and Application of the other components including an ignition layer is extremely to achieve a compact design.
- Component preferably the ignition capacitor
- ignition devices with a structural separation from Pyrotechnics and electronics, for example from DE 40 02 088 C1 or DE 198 36 280 C1, in which between pyrotechnics and Ignition area a protective wall is provided, which has electrical connections between the two areas.
- the electronics module can do well are protected and possibly also independent of the pyrotechnics area are produced, however, the functionality does not entirely by the manufacturer of the Electronics module are checked, since the ignition bridge yes in the pyrotechnics area must be arranged.
- the object of the invention is to present an ignition element which is simple is manufacturable and assemblable and manufacturing separation of pyrotechnics and electronics enables without having to go through a full functional check should be dispensed with.
- This object is achieved by the features of claim 1 solved.
- Advantageous further developments can be found in the subclaims.
- the carrier body of the ignition element is made in one piece from a non-conductive, heat-resistant and poorly heat-conducting material, e.g. glass or ceramic.
- the carrier body is in turn protects the circuit carrier arrangement from the Influences of the erosion of the pyrotechnic active mass.
- the carrier body also allows a variable mounting orientation Circuit carrier arrangement with respect to the pyrotechnic active mass, since the Ignition bridge on the carrier body not only on the top, but also on the side surface can be arranged and so a perpendicular from the pyrotechnic active mass running away arrangement of the circuit carrier arrangement is possible without the need for expensive sensors or contacts for the ignition element would be required.
- Figure 1 shows a sectional view through a particularly preferred Design of the ignition device as used as an igniter for a gas generator Occupant protection device, for example an airbag, used in a motor vehicle shall be.
- the ignition device consists of an ignition element 10 with a Ignition bridge layer 1, which is arranged on a separate carrier body 11 and is connected via contacts 12 to a circuit carrier arrangement 2 which in turn also receives the ignition electronics module 6.
- the carrier body 11 can 1 on the circuit carrier arrangement 2 largely free of the otherwise restrictions required for process circuit board assemblies from a pressure and heat resistant as well as hardly heat conductive Material can be selected, for example made of ceramic.
- the carrier body 11 without Significant cost increases in its dimensions compared to those for the other Components used on the circuit carrier arrangement, in particular the ignition electronics module 6 adapted and thus in one operation or processed by an automatic placement machine.
- FIG. 2 shows such an ignition element 10 with an SMD standard design as an example 1206 corresponding support body 11, metallizations 13 and circumferential contacts 12.
- the carrier body 11 basically has metallizations 13, which on the one hand the Form contact surfaces for the ignition bridge layer 1 and on the other hand to the Contacts 12 lead to the circuit carrier arrangement 2 or these contacts themselves form, i.e. the contacts 12 special formations of the metallizations 13, if necessary. with additional reflow solder coating.
- the contacts 12 of the ignition element 10 are designed so that they also together with the contacts of the ignition electronics module 6 in one operation on the circuit carrier arrangement 2 contacted, in this example SMD reflow can be soldered.
- FIG. 1 outlines that the ignition bridge layer 1 on a side surface 11s of the Carrier body with respect to the contacts 12 arranged on the underside 11u or the ignition element 10 can be mounted appropriately aligned.
- FIG. 1 shows in which the carrier body 11 of the ignition element 10 on one, here the upper end of the circuit carrier arrangement 2 is arranged.
- Circuit carrier assembly 2 and ignition element 10 only touch the at this end pyrotechnic active mass 3 and are otherwise already by a pressure elastic and shock-absorbing envelope 4 surround.
- the one with the ignitable layer 1 provided side surface 11s corresponding to this end to the pyrotechnic active mass 3 aligned.
- the pyrotechnic area A of the ignition device is from the electronic area B separated, the separation either by a protective wall 7c (see FIG. 4) or as a particularly preferred embodiment directly from an envelope 5 of the Electronics area B with a correspondingly pressure and heat resistant material is formed as shown in Fig. 1.
- the carrier arrangement 2 is also at least partially in the pyrotechnic region A. encased in a pressure-absorbing material 4.
- This pressure absorbing Material 4 for example a soft globe top, protects with its certain plastic or elastic deformability of both part 2a located in pyrotechnics area A. the carrier arrangement 2. So there is a subdivision by a two-part Enclosure of the carrier arrangement divided into pyrotechnic areas A and Electronics area B.
- the carrier arrangement 2 in FIG. 1 also has at least one special feature Separation point 23 for separating the part 2a of the pyrotechnics area Carrier assembly 2 from the remaining carrier assembly 2b after the ignition of the pyrotechnic active mass 3, the separation points 23 preferably so are dimensioned so that they only exceed a specified thermal and / or mechanical limit load during pyrotechnic combustion Active mass 3 separate the carrier arrangement 2. The separation took place can also the remaining and broken line ends on the carrier assembly 2 are recorded. The separation ensures that none or at least no forces exceeding the limit load on the carrier arrangement 2 on the Electronics module 6 are forwarded.
- the carrier arrangement 2 can for example be made of ceramic material with appropriate metallic deposits of interconnect structures and contact zones be designed and the separation point 23 is formed there as a predetermined breaking point as shown in Figure 1.
- the electronic assembly 6 consists of electronic components for control the ignition device via an energy and data bus with which the Ignition device is connected via the contacts 8, a protective circuit against Faults on the data bus and an ignition energy store, in particular an ignition capacitor and possibly other components. critical is that the electronics module even after the separation of the pyrotechnic part 2a of the carrier arrangement with the ignition element 10 still continues its other functions, in particular self-diagnosis and Data bus communication can continue, but at least the data exchange not hindered on the bus system.
- the circuit carrier arrangement 2 can also consist of two separate parts 2a and 2b exist, for example by a solder connection before the ignition of the pyrotechnic Active mass 3 are connected and due to the heat development melts during the burn.
- the solder joint (s) as an alternative embodiment of the The separation point (s) 23 must be dimensioned so that they are both mechanical as well as thermal requirements in motor vehicle operation and also that Ignition current can lead to the ignition bridge 1 without melting.
- the Burning of the pyrotechnic active mass 3 released amount of heat clearly above these loads, the plumbing can with certainty dimensions are melted, especially since a melting of the solder joint is sufficient to achieve the Forwarding of forces from pyrotechnics area A to electronics area B to prevent the circuit carrier arrangement 2.
- the circuit carrier arrangement 2 in FIG. 1 is also preferably in the pyrotechnics area A is at least partially enveloped by a pressure-absorbing material 4, which is softer than the material of the protective wall 7c or the casing 5 in Electronics area B.
- This pressure absorbing material 4 for example a soft globe top, protects both by its certain plastic or elastic deformability part 2a of the carrier arrangement 2 located in the pyrotechnics area A as well as the Protective wall 7c or the casing 5, the pressure resistance of which is therefore lower dimensioned or the overall security can be further increased.
- This pressure-absorbing material 4 is so elastic that at least when exceeded the limit load on the pyrotechnic part 2a of the circuit carrier arrangement 2 the separation points are severed.
- FIGS. 4 and 5 now show an alternative mounting form of the ignition device with an ignition element 10 with a separate carrier body 11, which here on a transversely extending circuit carrier arrangement 2 is arranged, the Ignition electronics module 6 on the circuit carrier arrangement 2 here by a Protective wall 7c is additionally protected.
- the ignition element 10 can in turn excluding the area of the ignitable layer 1 with a pressure-absorbing material 4 be encased.
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
Description
- Figur 1
- Zündeinrichtung mit einem Zündelement auf einem separaten Trägerkörper und Längsausrichtung der Schaltungsträgeranordnung
- Figur 2
- Zündelement mit Zündschicht als SMD-Bauform
- Figur 3
- Zündelement in Ausrichtung der Zündschicht auf der Seitenfläche
- Figur 4
- Zündeinrichtung mit einem Zündelement in Querausrichtung
- Figur 5
- Draufsicht auf die Schaltungsträgeranordnung gemäß Figur 4
Claims (9)
- Zündelement (10) für pyrotechnische Wirkmassen (3), wobei das Zündelement (10) auf einer Schaltungsträgeranordnung (2) angeordnet und über die Schaltungsträgeranordnung (2) mit einer Zündelektronikbaugruppe (6) verbunden ist, dadurch gekennzeichnet, daß
das Zündelement (10) einen gegenüber der Schaltungsträgeranordnung (2) separaten Trägerkörper (11) aufweist, welcher Kontaktmittel (12) zur elektrischen Kontaktierung des Zündelements (10) mit der Schaltungsträgeranordnung (2) aufweist. - Zündelement nach Anspruch 1, dadurch gekennzeichnet, daß die Zündelektronikbaugruppe (6) aus Standardbauelementen mit für Bestückungsautomaten standardisierten Abmaßen besteht und der Trägerkörper (11) des Zündelements (10) ebenfalls diese standardisierten Abmaße aufweist und von den gleichen Bestückungsautomaten auf die Schaltungsträgeranordnung (2) aufgebracht werden kann.
- Zündelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kontaktmittel (12) des Zündelements (10) so gestaltet sind, dass sie zusammen mit den Kontaktmitteln der Zündelektronikbaugruppe (6) in einem Arbeitsgang auf der Schaltungsträgeranordnung (2) kontaktiert werden können.
- Zündelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Kontaktmittel (1 2) des Trägerkörpers (11) SMD-lötfähig sind.
- Zündelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Zündelement (10) eine auf dem separaten Trägerkörper abgeschiedene elektrisch zündfähige Schicht (1) aufweist.
- Zündelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Trägerkörper (11) des Zündelements einstückig aus einem nichtleitenden, hitzebeständigen und schlecht wärmeleitenden Material ist.
- Zündelement nach Anspruch 5, dadurch gekennzeichnet, dass der Trägerkörper (11) des Zündelements aus Keramikmaterial oder Glas ist.
- Zündelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die zündfähige Schicht (1) bezüglich der Kontaktmittel (12) auf der Unterseite des Trägerkörpers (11u) auf einer Seitenfläche (11s) des Trägerkörpers angeordnet ist.
- Zündelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Trägerkörper (11) des Zündelements an einem Ende der Schaltungsträgeranordnung (2) angeordnet und die mit dem Zündelement versehene Seitenfläche (11s) entsprechend diesem Ende ausgerichtet ist, mit diesem Ende die pyrotechnische Wirkmasse (3) berührt und auf dem anderen Ende der Schaltungsträgeranordnung (2) beabstandet vom Zündelement (10) die Zündelektronikbaugruppe (6) angeordnet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10123285 | 2001-05-12 | ||
| DE10123285A DE10123285A1 (de) | 2001-05-12 | 2001-05-12 | Zündelement für pyrotechnische Wirkmassen auf einer Schaltungsträgeranordnung mit einer Zündelektronikbaugruppe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1256776A1 true EP1256776A1 (de) | 2002-11-13 |
| EP1256776B1 EP1256776B1 (de) | 2006-01-18 |
Family
ID=7684654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02009852A Expired - Lifetime EP1256776B1 (de) | 2001-05-12 | 2002-05-02 | Zündelement für pyrotechnische Wirkmassen auf einer Schaltungsträgeranordnung angeordnet und über diese mit einer Zündelektronikbaugruppe verbunden |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6644199B2 (de) |
| EP (1) | EP1256776B1 (de) |
| DE (2) | DE10123285A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2075526A4 (de) * | 2006-10-26 | 2012-10-24 | Nippon Kayaku Kk | Zündpille und gasgenerator für airbag und gasgenerator für sicherheitsgurtvorspannungsvorrichtung |
| CN110411285A (zh) * | 2019-07-19 | 2019-11-05 | 南京理工大学 | 集成单触发开关的爆炸箔超压芯片及其起爆装置 |
| CN117470040A (zh) * | 2023-11-23 | 2024-01-30 | 西安近代化学研究所 | 一种电点火具电阻测量使用电的滑动式安装托盘及系统 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820557B2 (en) * | 2002-01-25 | 2004-11-23 | Daicel Chemical Industries, Ltd. | Igniter for air bag system |
| JP3803636B2 (ja) * | 2002-12-26 | 2006-08-02 | 本田技研工業株式会社 | バス接続用点火装置 |
| US9396103B2 (en) * | 2007-06-08 | 2016-07-19 | Sandisk Technologies Llc | Method and system for storage address re-mapping for a memory device |
| AU2009308168B2 (en) * | 2008-10-24 | 2014-10-30 | Battelle Memorial Institute | Electronic detonator system |
| DE102019101236A1 (de) * | 2019-01-17 | 2020-07-23 | Liebherr-Components Biberach Gmbh | Ansteuervorrichtung zum Auslösen zumindest einer Pyrosicherung sowie Energiespeicher mit einer solchen Pyrosicherung |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942717A (en) * | 1995-03-31 | 1999-08-24 | Davey Bickford | Electro-pyrotechnic initiator, method for making same, and vehicle safety system |
| US20020002924A1 (en) * | 2000-05-30 | 2002-01-10 | Jean-Rene Duguet | Thin-film bridge electropyrotechnic initiator with a very low operating energy |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE456939B (sv) | 1987-02-16 | 1988-11-14 | Nitro Nobel Ab | Spraengkapsel |
| DE4002088C1 (de) | 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 (de) | 1994-10-01 | 1996-04-04 | Temic Bayern Chem Airbag Gmbh | Anzündeinheit für einen Gasgenerator eines passiven Rückhaltesystems |
| EP0843807B1 (de) * | 1995-07-26 | 1999-09-22 | Asahi Kasei Kogyo Kabushiki Kaisha | Elektronischer verzögerungszünder |
| DE19681674T1 (de) | 1995-12-06 | 1998-12-03 | Orica Trading Pty Ltd | Elektronische Sprengstoff-Zündvorrichtung |
| DE19610799C1 (de) | 1996-03-19 | 1997-09-04 | Siemens Ag | Zündeinrichtung zum Auslösen eines Rückhaltemittels in einem Kraftfahrzeug |
| 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 |
| US5889228A (en) * | 1997-04-09 | 1999-03-30 | The Ensign-Bickford Company | Detonator with loosely packed ignition charge and method of assembly |
| DE19805539A1 (de) * | 1998-02-11 | 1999-08-12 | Lell Peter Dipl Ing Dr | Alternative Anzündverfahren für pyrotechnische Baugruppen |
| DE19836278C2 (de) | 1998-08-11 | 2000-07-20 | Dynamit Nobel Ag | Extern ansteuerbare Anzündeinheit mit integrierter Elektronik zum Auslösen eines Rückhaltesystems |
| AU2285900A (en) | 1999-01-08 | 2000-07-24 | 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 (fr) * | 1999-02-18 | 2001-12-28 | Livbag Snc | Allumeur electro-pyrotechnique a electronique integree |
| DE19951720B4 (de) * | 1999-06-25 | 2007-06-06 | Delphi Technologies, Inc., Troy | Anzündeinheit mit integrierter Elektronik |
| DE19930904B4 (de) | 1999-07-06 | 2005-12-29 | Orica Explosives Technology Pty. Ltd., Melbourne | Elektronische Auslöseeinheit zur Initiierung von pyrotechnischen Elementen |
| DE19940200A1 (de) * | 1999-08-25 | 2001-04-05 | Daimler Chrysler Ag | Pyrotechnisches Zündsystem mit integrierter Zündschaltung |
| US6324979B1 (en) * | 1999-12-20 | 2001-12-04 | Vishay Intertechnology, Inc. | Electro-pyrotechnic initiator |
-
2001
- 2001-05-12 DE DE10123285A patent/DE10123285A1/de not_active Withdrawn
-
2002
- 2002-05-02 DE DE50205621T patent/DE50205621D1/de not_active Expired - Fee Related
- 2002-05-02 EP EP02009852A patent/EP1256776B1/de not_active Expired - Lifetime
- 2002-05-13 US US10/145,398 patent/US6644199B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942717A (en) * | 1995-03-31 | 1999-08-24 | Davey Bickford | Electro-pyrotechnic initiator, method for making same, and vehicle safety system |
| US20020002924A1 (en) * | 2000-05-30 | 2002-01-10 | Jean-Rene Duguet | Thin-film bridge electropyrotechnic initiator with a very low operating energy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2075526A4 (de) * | 2006-10-26 | 2012-10-24 | Nippon Kayaku Kk | Zündpille und gasgenerator für airbag und gasgenerator für sicherheitsgurtvorspannungsvorrichtung |
| CN110411285A (zh) * | 2019-07-19 | 2019-11-05 | 南京理工大学 | 集成单触发开关的爆炸箔超压芯片及其起爆装置 |
| CN110411285B (zh) * | 2019-07-19 | 2022-01-11 | 南京理工大学 | 集成单触发开关的爆炸箔超压芯片及其起爆装置 |
| CN117470040A (zh) * | 2023-11-23 | 2024-01-30 | 西安近代化学研究所 | 一种电点火具电阻测量使用电的滑动式安装托盘及系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10123285A1 (de) | 2002-11-14 |
| US20020166472A1 (en) | 2002-11-14 |
| DE50205621D1 (de) | 2006-04-06 |
| US6644199B2 (en) | 2003-11-11 |
| EP1256776B1 (de) | 2006-01-18 |
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