WO2007003802B1 - Fast-operating electrical initiator having a plastic structure and gas generator comprising one such initiator - Google Patents

Fast-operating electrical initiator having a plastic structure and gas generator comprising one such initiator

Info

Publication number
WO2007003802B1
WO2007003802B1 PCT/FR2006/050425 FR2006050425W WO2007003802B1 WO 2007003802 B1 WO2007003802 B1 WO 2007003802B1 FR 2006050425 W FR2006050425 W FR 2006050425W WO 2007003802 B1 WO2007003802 B1 WO 2007003802B1
Authority
WO
WIPO (PCT)
Prior art keywords
initiator according
electrical initiator
electrical
resistive element
matrix
Prior art date
Application number
PCT/FR2006/050425
Other languages
French (fr)
Other versions
WO2007003802A3 (en
WO2007003802A2 (en
Inventor
Patrick Moussier
Original Assignee
Davey Bickford
Patrick Moussier
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR0551190A external-priority patent/FR2885683A1/en
Application filed by Davey Bickford, Patrick Moussier filed Critical Davey Bickford
Priority to EP06794410A priority Critical patent/EP1882152A2/en
Publication of WO2007003802A2 publication Critical patent/WO2007003802A2/en
Publication of WO2007003802A3 publication Critical patent/WO2007003802A3/en
Publication of WO2007003802B1 publication Critical patent/WO2007003802B1/en

Links

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
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
    • F42B3/107—Sealing-plugs characterised by the material used

Abstract

The invention relates to an electrical initiator with PTMS®-type compressed pyrotechnic sheets, comprising a cap containing at least one pyrotechnic charge, a base and a resistive element. The invention is characterised in that the base is made from a composite material comprising a matrix that is formed from at least one plastic material having fibres dispersed therein, said composite material having a melting point varying between 260 and 320 °C and an axial thermal expansion coefficient of less than 30.10-6 K-1 in accordance with test ASTM E831. Optionally, the aforementioned cap can be made from the same material. The invention also relates to a gas generator comprising one such initiator.

Claims

REVENDICATIONS MODIFIÉES reçues par le Bureau international le 14 Mars 2007 (14.03.2007) AMENDED CLAIMS received by the International Bureau on 14 March 2007 (14.03.2007)
1. Initiateur électrique à couches pyrotechniques comprimées, comprenant un capuchon (2) contenant au moins une charge pyrotechnique, une embase (3) et un élément résistif (13), caractérisé en ce que l'embase (3) et le capuchon (2) sont réalisés en des matériaux composites, identiques ou différents, comprenant une matrice formée d'au moins une matière plastique, dans laquelle sont dispersées des fibres, lesdits matériaux composites ayant une température de fusion allant de 260 à 320 0C et un coefficient de dilatation thermique inférieur à 30.10"6 K'1 dans la direction axiale selon le test ASTM E831.Electric initiator with compressed pyrotechnic layers, comprising a cap (2) containing at least one pyrotechnic charge, a base (3) and a resistive element (13), characterized in that the base (3) and the cap (2) ) are made of composite materials, identical or different, comprising a matrix formed of at least one plastic material, in which fibers are dispersed, said composite materials having a melting temperature ranging from 260 to 320 ° C. and a coefficient of thermal expansion less than 30.10 "6 K '1 in the axial direction according to ASTM test E831.
2. Initiateur électrique selon la revendication 1 , caractérisé en ce que la matière plastique de la matrice est le poly(sulfure de phénylène) (PPS).2. Electrical initiator according to claim 1, characterized in that the plastic material of the matrix is poly (phenylene sulfide) (PPS).
3. Initiateur électrique selon la revendication 1 , caractérisé en ce que la matière plastique de la matrice est un polymère à cristaux liquides.Electrical initiator according to claim 1, characterized in that the plastic material of the matrix is a liquid crystal polymer.
4. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le matériau composite a une température de fusion allant de 275 à 300 0C.4. Electrical initiator according to any one of the preceding claims, characterized in that the composite material has a melting temperature ranging from 275 to 300 ° C.
5. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le taux de reprise d'humidité du matériau composite est inférieur à 0,05 % en 24 heures, de préférence inférieur à 0,03 % en 24 heures, selon l'essai ASTM D570.Electrical initiator according to any one of the preceding claims, characterized in that the moisture recovery rate of the composite material is less than 0.05% in 24 hours, preferably less than 0.03% in 24 hours, according to ASTM D570 test.
6. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le matériau composite a un coefficient de dilatation thermique inférieur e 25.10"6 K"1 dans la direction axiale selon le test ASTM E831.Electrical initiator according to one of the preceding claims, characterized in that the composite material has a coefficient of thermal expansion of less than 25 × 10 -6 K -1 in the axial direction according to ASTM test E831.
7. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que la matrice est renforcée par 20 à 45 % en masse de fibres.7. Electrical initiator according to any one of the preceding claims, characterized in that the matrix is reinforced with 20 to 45% by weight of fibers.
8. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que les fibres sont choisies parmi les fibres de carbone, les fibres de verre et leurs mélanges.8. Electrical initiator according to any one of the preceding claims, characterized in that the fibers are selected from carbon fibers, glass fibers and mixtures thereof.
9. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que la matrice est renforcée par 20 à 35 % en masse de fibres de carbone.9. Electrical initiator according to any one of the preceding claims, characterized in that the matrix is reinforced with 20 to 35% by weight of carbon fibers.
10. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que la matrice est renforcée par 30 à 45 % en masse de fibres de verre.Electrical initiator according to one of the preceding claims, characterized in that the matrix is reinforced with 30 to 45% by weight of glass fibers.
11. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le matériau composite a une température de déflexion sous 1 ,82 MPa supérieure à 230 0C selon le test ASTM D648. 11. Electrical initiator according to any one of the preceding claims, characterized in that the composite material has a deflection temperature of 1. 82 MPa greater than 230 0 C according to the ASTM D648 test.
12. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément résistif est un filament métallique cylindrique.12. Electrical initiator according to any one of the preceding claims, characterized in that the resistive element is a cylindrical metal filament.
13. Initiateur électrique selon l'une quelconque des revendications 1 à 11 , caractérisé en ce que l'élément résistif (13) est un filament plat fixé sur un support.13. Electrical initiator according to any one of claims 1 to 11, characterized in that the resistive element (13) is a flat filament fixed on a support.
14. Initiateur électrique selon l'une quelconque des revendications 1 à 11 , caractérisé en ce que l'élément résistif (13) est un filament plat fixé sur un support, et caractérisé par la présence d'une charge primaire (8) au contact de l'élément résistif se présentant sous forme comprimée et étant exempte d'explosif primaire.Electric initiator according to any one of claims 1 to 11, characterized in that the resistive element (13) is a flat filament fixed on a support, and characterized by the presence of a primary charge (8) in contact the resistive element is in compressed form and is free of primary explosive.
15. Initiateur électrique selon la revendication 13 ou 14, caractérisé en ce que le filament plat comprend au moins une couche mince, de préférence métallique.15. Electrical initiator according to claim 13 or 14, characterized in that the flat filament comprises at least one thin layer, preferably metal.
16. Initiateur électrique selon la revendication 13 ou 14, caractérisé en ce que le filament plat comprend au moins une couche épaisse, métallique ou semi- conductrice.16. Electrical initiator according to claim 13 or 14, characterized in that the flat filament comprises at least one thick layer, metallic or semi-conductive.
17. Initiateur électrique selon la revendication 13 ou 14, caractérisé en ce que l'élément résistif est un élément résistif à pont semi-conducteur.17. An electric initiator according to claim 13 or 14, characterized in that the resistive element is a resistive element with a semiconductor bridge.
18. Initiateur électrique selon l'une quelconque des revendications 13 à 17, caractérisé en ce que le filament plat a une épaisseur allant de 1 à 10 μm.18. Electrical initiator according to any one of claims 13 to 17, characterized in that the flat filament has a thickness ranging from 1 to 10 microns.
19. Initiateur électrique selon l'une quelconque des revendications 13,-à 17, caractérisé en ce que le filament plat a une épaisseur allant de 2 à 8 μm.19. Electrical initiator according to any one of claims 13 to 17, characterized in that the flat filament has a thickness ranging from 2 to 8 microns.
20. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé par la présence d'une charge (8) au contact de l'élément résistif se présentant sous forme comprimée et ayant un taux de compression supérieur à 30 bars.20. Electrical initiator according to any one of the preceding claims, characterized by the presence of a load (8) in contact with the resistive element in compressed form and having a compression ratio greater than 30 bar.
21. Initiateur électrique selon la revendication 20, caractérisé en ce que la charge au contact de l'élément résistif comprend un mélange d'oxydants et de réducteurs.21. Electrical initiator according to claim 20, characterized in that the charge in contact with the resistive element comprises a mixture of oxidants and reducing agents.
22. Initiateur électrique selon la revendication 20, caractérisé en ce que la charge au contact de l'élément résistif comprend un mélange de zirconium et de perchlorate de potassium.22. Electrical initiator according to claim 20, characterized in that the charge in contact with the resistive element comprises a mixture of zirconium and potassium perchlorate.
23. Initiateur électrique selon l'une quelconque des revendications 20 à 22, caractérisé en ce que la charge au contact de l'élément résistif comprend au moins un additif choisi parmi un liant, un oxyde métallique, un oxyde de métal de transition, un oxyde de métalloïde, une poudre de silice ultra fine, du talc, du graphite et du nitrure de bore.23. Electrical initiator according to any one of claims 20 to 22, characterized in that the charge in contact with the resistive element comprises at least one additive selected from a binder, a metal oxide, a transition metal oxide, a metalloid oxide, ultra-fine silica powder, talc, graphite and boron nitride.
24. Initiateur électrique selon la revendication 23, caractérisé en ce que le liant est un liant élastomère fluoré. 24. Electrical initiator according to claim 23, characterized in that the binder is a fluoroelastomer binder.
25. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une composition pyrotechnique autoinitiatrice.25. Electrical initiator according to any one of the preceding claims, characterized in that it comprises an autoinitiation pyrotechnic composition.
26. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est stable sous 107 0C pendant 408 heures.26. Electrical initiator according to any one of the preceding claims, characterized in that it is stable at 107 0 C for 408 hours.
27. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est stable sous 85 0C et 95 % d'humidité relative pendant 5 jours.27. Electrical initiator according to any one of the preceding claims, characterized in that it is stable at 85 0 C and 95% relative humidity for 5 days.
28. Initiateur électrique selon l'une quelconque des revendications précédentes, caractérisé par un délai de fonctionnement inférieur à 0,7 millisecondes sous un courant de 1 ,2 A et sous une température pouvant varier de - 40 0C à + 9O 0C.28. Electrical initiator according to any one of the preceding claims, characterized by an operating time of less than 0.7 milliseconds under a current of 1.2 A and at a temperature ranging from -40 0 C to + 90 ° C.
29. Générateur de gaz caractérisé en ce qu'il comprend un initiateur électrique selon l'une quelconque des revendications 1 à 28. 29. Gas generator characterized in that it comprises an electric initiator according to any one of claims 1 to 28.
PCT/FR2006/050425 2005-05-10 2006-05-10 Fast-operating electrical initiator having a plastic structure and gas generator comprising one such initiator WO2007003802A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06794410A EP1882152A2 (en) 2005-05-10 2006-05-10 Fast-operating electrical initiator having a plastic structure and gas generator comprising one such initiator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0551190A FR2885683A1 (en) 2005-05-10 2005-05-10 Electrical pyrotechnic initiator e.g. for motor vehicle airbag gas generator has composition base of plastic matrix containing fibers
FR0551190 2005-05-10
FR0552241 2005-07-19
FR0552241A FR2885684B1 (en) 2005-05-10 2005-07-19 ELECTRICAL INITIATOR HAVING A PLASTIC STRUCTURE AND RAPID OPERATION AND A GAS GENERATOR COMPRISING SUCH AN INITIATOR

Publications (3)

Publication Number Publication Date
WO2007003802A2 WO2007003802A2 (en) 2007-01-11
WO2007003802A3 WO2007003802A3 (en) 2007-03-15
WO2007003802B1 true WO2007003802B1 (en) 2007-05-03

Family

ID=37388347

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2006/050425 WO2007003802A2 (en) 2005-05-10 2006-05-10 Fast-operating electrical initiator having a plastic structure and gas generator comprising one such initiator

Country Status (3)

Country Link
EP (1) EP1882152A2 (en)
FR (1) FR2885684B1 (en)
WO (1) WO2007003802A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102055977B1 (en) * 2013-11-07 2019-12-13 사브 에이비 Electric detonator and method for producing an electric detonator
DE102013020526A1 (en) 2013-12-11 2015-06-11 Trw Airbag Systems Gmbh POLKÖRPER FOR A PYROTECHNISCHZZNNDER OF A GAS GENERATOR, LIGHTER, GAS GENERATOR AND GASSACK MODULE WITH SUCH A POLISHED BODY

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4923212A (en) 1988-08-17 1990-05-08 Talley Automotive Products, Inc. Lightweight non-welded inflator unit for automobile airbags
US4865635A (en) 1988-08-17 1989-09-12 Talley Automotive Products, Inc. Filter assembly for non-welded inflator device
US4907819A (en) 1988-09-16 1990-03-13 Talley Automotive Products, Inc. Lightweight non-welded gas generator with rolled spun lip
FR2698687B1 (en) 1992-12-01 1995-02-03 Giat Ind Sa Pyrotechnic initiator.
US5711531A (en) 1993-10-20 1998-01-27 Quantic Industries, Inc. Electrical initiator seal
US5648634A (en) 1993-10-20 1997-07-15 Quantic Industries, Inc. Electrical initiator
JP2001021293A (en) * 1999-07-02 2001-01-26 Nippon Kayaku Co Ltd Squib and manufacture thereof
EP1225415A1 (en) * 1999-10-28 2002-07-24 Daicel Chemical Industries, Ltd. Electric type initiator and gas generator
JP4021178B2 (en) * 2001-11-21 2007-12-12 ダイセル化学工業株式会社 Initiator assembly
DE60211462T2 (en) * 2002-01-10 2007-04-26 Davey Bickford Pyrotechnic electric lighter and assembly method

Also Published As

Publication number Publication date
FR2885684B1 (en) 2012-04-27
WO2007003802A3 (en) 2007-03-15
EP1882152A2 (en) 2008-01-30
WO2007003802A2 (en) 2007-01-11
FR2885684A1 (en) 2006-11-17

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