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EP1335179B2 - Chaine d'amorçage électrique avec un porteur du detonateur en plastique muni d'un couche metallique insertée - Google Patents
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EP1335179B2 - Chaine d'amorçage électrique avec un porteur du detonateur en plastique muni d'un couche metallique insertée - Google Patents

Chaine d'amorçage électrique avec un porteur du detonateur en plastique muni d'un couche metallique insertée Download PDF

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Publication number
EP1335179B2
EP1335179B2 EP03001828A EP03001828A EP1335179B2 EP 1335179 B2 EP1335179 B2 EP 1335179B2 EP 03001828 A EP03001828 A EP 03001828A EP 03001828 A EP03001828 A EP 03001828A EP 1335179 B2 EP1335179 B2 EP 1335179B2
Authority
EP
European Patent Office
Prior art keywords
plastic
metal insert
ignition
ignition element
igniter support
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
Application number
EP03001828A
Other languages
German (de)
English (en)
Other versions
EP1335179B1 (fr
EP1335179A1 (fr
Inventor
Uwe Brede
Eduard Berenz
Anton Bretfeld
Harald Frank
Jürgen Knauss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27614273&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1335179(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE10236508A external-priority patent/DE10236508A1/de
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1335179A1 publication Critical patent/EP1335179A1/fr
Publication of EP1335179B1 publication Critical patent/EP1335179B1/fr
Application granted granted Critical
Publication of EP1335179B2 publication Critical patent/EP1335179B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F42B3/26—Arrangements for mounting initiators; Accessories therefor, e.g. tools

Definitions

  • the invention relates to a pyrotechnic ignition chain with a Anzündmoi plastic according to the preamble of claim 1 and 2, (see. EP-A-0 943 503 ).
  • the DE-A1-199 60 642 describes a pyrotechnic ignition chain with a primer carrier made of plastic.
  • a Anzündelement is integrated, which protrudes with its active part of the Anzündy and projects into a metal housing, which is attached to the ignition carrier.
  • a metal housing In the metal housing an amplifier charge is arranged.
  • the primer carrier made of plastic has the function of mechanically fixing the ignition element in the metal housing. In addition, it must ensure that, when the ignition chain functions, no gas can escape between the plastic primer / ignition element and / or plastic primer / metal housing.
  • the ignition carrier Due to the necessary mechanical strength in the function of the ignition chain in conjunction with the complex shape in the contacting region of the ignition element, the ignition carrier has hitherto preferably been produced by machining as a combined rotary milled part. This production method is very expensive.
  • the invention is based on the object to improve a pyrotechnic ignition chain according to the preamble of claim 1 and 2 in view of the mechanical stability and the ingress of moisture.
  • the metal insert is a stamped or bent part.
  • the plastic of the ignition carrier is doped with mica.
  • the ignition element is partially or completely encapsulated by the plastic of the ignition carrier.
  • the metal insert is connected to the ignition element. As a result, only a part needs to be encapsulated with the plastic.
  • the metal insert is cup-shaped, wherein the edge of the metal insert is flanged or folded and is led out of the primer.
  • the invention is characterized in that, instead of the costly machining, a stamped, bent part is used, which is subsequently injection-molded as an insert.
  • the metal insert or the punching, - bending part takes over the mechanical support, which can be performed with the same strength due to its rigidity with a smaller wall thickness than a rotary milled part; This additional weight savings is achieved.
  • the plastic in the ignition carrier ensures the sealing function between primer / ignition element and / or primer / metal housing.
  • the required complex contour in the contacting region of the ignition element can also be achieved with the plastic by means of injection molding.
  • the plastic of the ignition carrier can be doped with mica. This ensures that the high-resistance plastic becomes low-resistance at high voltage and dissipates the ESD discharges and that no unwanted tripping occurs.
  • Fig. 1 a typical ignition chain is shown, in which the primer carrier 4 can be used made of plastic.
  • the ignition element 2 is partially encapsulated in the ignition carrier 4 and the metal insert 3 is integrated.
  • the Anzündiva 4 in turn is connected to a sleeve 1 which contains a sealing cup 5 in the lower part, which protects the subsequent booster charge 6 in the installed state against moisture and thus ensures the function of the ignition chain safely over the entire service life.
  • a vapor barrier can be installed. This can be achieved by, for example, moistening the ignition element 2 with a corresponding sealing compound which, after encapsulation, becomes effective on the ignition element 2 due to the heat introduced and / or shrinkage of the plastic.
  • Another way to preserve the vapor barrier is that for the areas 13 and 14 an elastic plastic is used. This can be z. B. in an injection process (2-component injection) respectively.
  • the plastic of the igniter carrier 4 can be doped with mica, as described in the introduction.
  • the metal insert 3 which is integrated in the ignition carrier 4 and the ignition element 2 in the area 3a, 3b securely supported. Due to the shape and manufacturing process of the metal insert 3 as a bending part high rigidity is given, which ensures the support sure. This ensures that no deformation of the metal insert 3 takes place even under the highest pressure load.
  • the metal insert 3 is designed so that it protrudes in the area 3b from the ignition carrier 4 and can be fixed in the higher-level device.
  • Fig. 2 is outlined a possible form of metal insert 3. As can be seen, this part can be preferably manufactured as a stamped part, which is subsequently transformed accordingly.
  • the metal part has recesses 8 in order to improve the positive connection metal insert 3 - plastic.
  • the metal part 3 is folded over in order to obtain an additional reinforcement.
  • the metal insert 3 can also be additionally deformed in the inner region 3a in order to increase the rigidity, as shown at 3c.
  • Fig. 3 is the contacting of the ignition element 2 in the area 7, shown.
  • a contact fuse 9 is required for the contacting, which is held in the primer 4 by means of corresponding recesses 10 in position.
  • Fig. 4 is another possible embodiment of Anzündmons 4 shown.
  • the entire ignition element 2 is encapsulated.
  • Fig. 5 is a further technical possibility of the arrangement of the metal insert 3 in the ignition carrier 4 shown.
  • the metal insert 3 is connected to the ignition element 2, this can, for. B. by welding 12. As a result, an additional mechanical fixation of the two parts is achieved.
  • Another advantage is that the injection process can be carried out in a simplified manner since only one part (instead of two parts) has to be inserted.
  • booster charge 6 is understood a booster charge and the sleeve 1 is a housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Laminated Bodies (AREA)

Claims (8)

  1. Chaîne d'amorçage pyrotechnique avec un porteur de détonateur (4) en plastique qui supporte un élément détonateur (2) et sur le porteur de détonateur (4) est fixée une enveloppe métallique (1) de forme cylindrique dans laquelle s'engage l'élément détonateur (2) et dans l'enveloppe métallique (1) est disposée une charge de stimulation (6), un insert insert métallique (3), enrobé par le plastique du porteur de détonateur (4), étant intégré dans le porteur de détonateur (4) pour le soutien mécanique, caractérisée en ce que des évidements (8) sont disposés dans l'insert métallique (3) pour une meilleure liaison avec le plastique et en ce que l'élément détonateur (2) a été mouillé avec un produit d'étanchéité avant l'enrobage par le plastique.
  2. Chaîne d'amorçage pyrotechnique avec un porteur de détonateur (4) en plastique qui supporte un élément détonateur (2) et sur le porteur de détonateur (4) est fixée une enveloppe métallique (1) de forme cylindrique dans laquelle s'engage l'élément détonateur (2) et dans l'enveloppe métallique (1) est disposée une charge de stimulation (6), un insert métallique (3), enrobé par le plastique du porteur de détonateur (4), étant intégré dans le porteur de détonateur (4) pour le soutien mécanique, caractérisée en ce que des évidements (8) sont disposés dans l'insert métallique (3) pour une meilleure liaison avec le plastique et en ce que l'insert métallique (3) est relié à l'élément détonateur (2).
  3. Chaîne d'amorçage selon la revendication 1 ou 2, caractérisée en ce que l'insert métallique (3) est une pièce découpée ou une pièce cintrée.
  4. Chaîne d'amorçage selon l'une quelconque des revendications 1, 2 ou 3, caractérisée en ce que le plastique du porteur de détonateur (4) est additionné de mica.
  5. Chaîne d'amorçage selon l'une quelconque des revendications 1 à 4, caractérisée en ce que l'élément détonateur (2) est enrobé partiellement ou totalement par le plastique du porteur de détonateur (4).
  6. Chaîne d'amorçage selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'un plastique élastique est utilisé par zones comme plastique pour le porteur de détonateur (4).
  7. Chaîne d'amorçage selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'insert métallique (3) est conformée en cloche.
  8. Chaîne d'amorçage selon l'une quelconque des revendications 1 à 7, caractérisée en ce que le bord de l'insert métallique (3) est rabattu ou replié et ressorti du porteur de détonateur (4).
EP03001828A 2002-02-09 2003-01-29 Chaine d'amorçage électrique avec un porteur du detonateur en plastique muni d'un couche metallique insertée Expired - Lifetime EP1335179B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10205427 2002-02-09
DE10205427 2002-02-09
DE10236508A DE10236508A1 (de) 2002-02-09 2002-08-09 Pyrotechnische Zündkette mit einem Anzündträger aus Kunststoff mit integrierter Metalleinlage
DE10236508 2002-08-09

Publications (3)

Publication Number Publication Date
EP1335179A1 EP1335179A1 (fr) 2003-08-13
EP1335179B1 EP1335179B1 (fr) 2007-09-05
EP1335179B2 true EP1335179B2 (fr) 2011-08-24

Family

ID=27614273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001828A Expired - Lifetime EP1335179B2 (fr) 2002-02-09 2003-01-29 Chaine d'amorçage électrique avec un porteur du detonateur en plastique muni d'un couche metallique insertée

Country Status (5)

Country Link
US (1) US7111558B2 (fr)
EP (1) EP1335179B2 (fr)
AT (1) ATE372499T1 (fr)
CZ (1) CZ2003386A3 (fr)
DE (1) DE50308092D1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003087705A1 (fr) * 2002-04-16 2003-10-23 Nippon Kayaku Kabushiki-Kaisha Generateur de gaz
US7690303B2 (en) * 2004-04-22 2010-04-06 Reynolds Systems, Inc. Plastic encapsulated energetic material initiation device
DE202005007611U1 (de) * 2005-05-13 2005-09-22 Trw Airbag Systems Gmbh Gasgenerator
US7854201B2 (en) * 2005-11-08 2010-12-21 Daicel Chemical Industries, Ltd. Igniter assembly
JP4925894B2 (ja) * 2007-03-30 2012-05-09 日産自動車株式会社 スプリングシートおよびダンパーディスク組立体
US20090114109A1 (en) * 2007-11-01 2009-05-07 Arc Automotive Inc. Stamped and molded igniter body for airbag inflators
US8100043B1 (en) 2008-03-28 2012-01-24 Reynolds Systems, Inc. Detonator cartridge and methods of use
JP5530113B2 (ja) * 2009-03-26 2014-06-25 株式会社ダイセル 点火器の固定構造
US8393641B1 (en) 2009-06-12 2013-03-12 Tk Holdings, Inc. Gas generator
FR2955932B1 (fr) * 2010-02-01 2012-04-06 Livbag Generateur de gaz et son procede de fabrication
JP5381932B2 (ja) * 2010-03-02 2014-01-08 豊田合成株式会社 ガス発生装置
JP5293713B2 (ja) * 2010-09-30 2013-09-18 豊田合成株式会社 ガス発生装置
JP6243404B2 (ja) * 2013-03-29 2017-12-06 日本化薬株式会社 ガス発生器
CN113566662B (zh) * 2021-06-17 2023-05-26 北京凯米迈克科技有限公司 一种便捷式涉电引火件
US11808554B1 (en) 2021-06-24 2023-11-07 United States Of America As Represented By The Secretary Of The Air Force Embedded mounting devices and methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429175A1 (de) † 1993-08-25 1995-03-02 Ems Patvag Ag Gekapselter elektrischer Zünder mit integriertem Überspannungsableiter für einen Gasgenerator
US5733135A (en) † 1995-12-06 1998-03-31 Trw Inc. Air bag inflator assembly with shorting clip
EP0943503A2 (fr) † 1998-03-19 1999-09-22 Oea, Inc. Dispositif de déclenchement de gonfleur à élément d' insert

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650212A (en) * 1970-05-11 1972-03-21 Western Dynamics Inc Economical, tough, debris-free shaped charge device and perforating gun assembly employing same
US3971320A (en) * 1974-04-05 1976-07-27 Ici United States Inc. Electric initiator
US3906858A (en) * 1974-07-30 1975-09-23 Us Eneregy Research And Dev Ad Miniature igniter
DE29608194U1 (de) * 1996-05-06 1996-10-02 Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf Elektrischer Zünder eines pyrotechnischen Gasgenerators
JP2000292100A (ja) * 1999-04-09 2000-10-20 Showa Kinzoku Kogyo Kk 電気点火式ガス発生装置
DE19960642B4 (de) * 1999-08-05 2007-08-02 Delphi Technologies, Inc., Troy Pyrotechnische Zündkette
WO2001026938A1 (fr) * 1999-10-14 2001-04-19 Nippon Kayaku Kabushiki-Kaisha Generateur de gaz
US6341562B1 (en) * 2000-02-22 2002-01-29 Autoliv Asp, Inc. Initiator assembly with activation circuitry
US6644198B1 (en) * 2000-10-31 2003-11-11 Special Devices, Inc. Integral pyrotechnic initiator with molded connector
AU2002230938A1 (en) * 2000-10-31 2002-05-15 Special Devices, Inc. Multi-unit pyrotechnic initiation system
US6820556B1 (en) * 2001-11-21 2004-11-23 Daicel Chemical Industries, Ltd. Initiator assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429175A1 (de) † 1993-08-25 1995-03-02 Ems Patvag Ag Gekapselter elektrischer Zünder mit integriertem Überspannungsableiter für einen Gasgenerator
US5733135A (en) † 1995-12-06 1998-03-31 Trw Inc. Air bag inflator assembly with shorting clip
EP0943503A2 (fr) † 1998-03-19 1999-09-22 Oea, Inc. Dispositif de déclenchement de gonfleur à élément d' insert

Also Published As

Publication number Publication date
DE50308092D1 (de) 2007-10-18
CZ2003386A3 (cs) 2004-08-18
ATE372499T1 (de) 2007-09-15
EP1335179B1 (fr) 2007-09-05
EP1335179A1 (fr) 2003-08-13
US20030183110A1 (en) 2003-10-02
US7111558B2 (en) 2006-09-26

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