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US20030213395A1 - Airbag igniter - Google Patents

Airbag igniter Download PDF

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Publication number
US20030213395A1
US20030213395A1 US10/261,330 US26133002A US2003213395A1 US 20030213395 A1 US20030213395 A1 US 20030213395A1 US 26133002 A US26133002 A US 26133002A US 2003213395 A1 US2003213395 A1 US 2003213395A1
Authority
US
United States
Prior art keywords
disc
cup
igniter
filtering unit
metal
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.)
Abandoned
Application number
US10/261,330
Inventor
Douglas Baldensperger
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.)
Osram Sylvania Inc
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to US10/261,330 priority Critical patent/US20030213395A1/en
Assigned to OSRAM SYLVANIA INC. reassignment OSRAM SYLVANIA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BALDENSPERGER, DOULGAS T.
Priority to CA002421051A priority patent/CA2421051A1/en
Priority to EP03010899A priority patent/EP1364844A3/en
Priority to KR10-2003-0031586A priority patent/KR20030090527A/en
Priority to JP2003142435A priority patent/JP2003335212A/en
Publication of US20030213395A1 publication Critical patent/US20030213395A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • 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
    • F42B3/18—Safety initiators resistant to premature firing by static electricity or stray currents
    • F42B3/188—Safety initiators resistant to premature firing by static electricity or stray currents having radio-frequency filters, e.g. containing ferrite cores or inductances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R2021/26029—Ignitors

Definitions

  • This invention relates to igniters and more particularly to airbag igniters for automobile safety devices.
  • an airbag igniter that comprises a cup-shaped metal can with an electrically insulating disc having a conductive metal plating pattern thereon positioned within the metal can.
  • the disc can be a ceramic material but preferably is FR 4, a standard printed circuit board material.
  • An RF filtering unit is fixed to the disc.
  • Two gold-plated, electrically conductive pins pass through the disc and make appropriate electrical connection to the RF filtering unit.
  • a sealing material encloses the unit filling the remaining volume of the cup-shaped can. This construction eliminates the need for a two-way filtered connector, since the igniter itself contains the filtering unit.
  • FIGURE is a elevational view, in section, of an embodiment of the invention.
  • an airbag igniter 10 that comprises a cup-shaped metal can 12 with a ceramic disc 14 having a conductive metal plating pattern 16 thereon positioned within the metal can 12 .
  • An RF filtering unit 18 is fixed to the disc 14 .
  • Two gold-plated, electrically conductive pins 20 , 22 pass through the disc 14 and make appropriate electrical connection to the RF filtering unit 18 .
  • a sealing material 24 encloses the unit, filling the remaining volume of the cup-shaped can 12 . This construction eliminates the need for a two-way filtered connector, since the igniter itself contains the filtering unit.
  • the sealing material is preferably an epoxy that can be cured by the application of ultraviolet radiation, heat or ambient air.
  • epoxies can be, for example, a one part heat cured epoxy.
  • a plastic resin 30 such as nylon can be molded over the final assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

An airbag igniter (10) comprises a cup-shaped metal can (12) with a ceramic disc (14) having a conductive metal plating pattern (16) thereon positioned within the metal can (12). An RF filtering unit (18) is fixed to the disc (14). Two gold-plated, electrically conductive pins (20, 22) pass through the disc (14) and make appropriate electrical connection to the RF filtering unit (18). A sealing material (24) encloses the unit, filling the remaining volume of the cup-shaped can (12).

Description

  • This application claims priority from Provisional Patent Application No. 60/381,920, filed May 20, 2002.[0001]
    • TECHNICAL FIELD
  • This invention relates to igniters and more particularly to airbag igniters for automobile safety devices. [0002]
    • BACKGROUND ART
  • Current airbag igniters utilize a two-piece construction. One of these pieces comprises a solid metal component having two gold plated pins attached via soldering or welding that is mated with a two position connector containing a filtering device to suppress RF and EMI interference. While workable, this construction is costly and an important consideration in an industry trying to control costs. [0003]
    • DISCLOSURE OF INVENTION
  • It is, therefore, an object of the invention to obviate the disadvantages of the prior art. [0004]
  • It is another object of the invention to enhance to reduce the number of components utilized in airbag igniters. [0005]
  • These objects are accomplished, in one aspect of the invention, by the provision of an airbag igniter that comprises a cup-shaped metal can with an electrically insulating disc having a conductive metal plating pattern thereon positioned within the metal can. The disc can be a ceramic material but preferably is FR 4, a standard printed circuit board material. An RF filtering unit is fixed to the disc. Two gold-plated, electrically conductive pins pass through the disc and make appropriate electrical connection to the RF filtering unit. A sealing material encloses the unit filling the remaining volume of the cup-shaped can. This construction eliminates the need for a two-way filtered connector, since the igniter itself contains the filtering unit.[0006]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The single FIGURE is a elevational view, in section, of an embodiment of the invention.[0007]
    • BEST MODE FOR CARRYING OUT THE INVENTION
  • For a better understanding of the present invention, together with other and further objects, advantages and capabilities thereof, reference is made to the following disclosure and appended claims in conjunction with the above-described drawings. [0008]
  • Referring now to the drawing with greater particularity, there is shown an [0009] airbag igniter 10 that comprises a cup-shaped metal can 12 with a ceramic disc 14 having a conductive metal plating pattern 16 thereon positioned within the metal can 12. An RF filtering unit 18 is fixed to the disc 14. Two gold-plated, electrically conductive pins 20, 22 pass through the disc 14 and make appropriate electrical connection to the RF filtering unit 18. A sealing material 24 encloses the unit, filling the remaining volume of the cup-shaped can 12. This construction eliminates the need for a two-way filtered connector, since the igniter itself contains the filtering unit.
  • The sealing material is preferably an epoxy that can be cured by the application of ultraviolet radiation, heat or ambient air. Such epoxies can be, for example, a one part heat cured epoxy. [0010]
  • In an alternate embodiment a [0011] plastic resin 30 such as nylon can be molded over the final assembly.
  • While there have been shown and described what are at present considered to be the preferred embodiments of the invention, it will be apparent to those skilled in the art that various changes and modification can be made herein without departing from the scope of the invention as defined by the appended claims. [0012]

Claims (3)

What is claimed is:
1. An airbag igniter comprising:
a cup-shaped metal can;
an electrically insulating disc having a conductive metal plating pattern thereon positioned within said metal can;
an RF filtering unit fixed to said disc;
two gold-plated, electrically conductive pins passing through said disc and making appropriate electrical connection to said RF filtering unit; and
a sealing material enclosing said unit filling the remaining volume of said cup-shaped can.
2. The airbag igniter of claim 1 wherein said sealing material is an epoxy selected from the group of epoxies curable by ultra violet radiation, heat or ambient air.
3. The airbag igniter of claim 1 wherein said igniter is over-coated by a plastic resin.
US10/261,330 2002-05-20 2002-09-30 Airbag igniter Abandoned US20030213395A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/261,330 US20030213395A1 (en) 2002-05-20 2002-09-30 Airbag igniter
CA002421051A CA2421051A1 (en) 2002-05-20 2003-03-06 Airbag igniter
EP03010899A EP1364844A3 (en) 2002-05-20 2003-05-15 Airbag igniter
KR10-2003-0031586A KR20030090527A (en) 2002-05-20 2003-05-19 Airbag igniter
JP2003142435A JP2003335212A (en) 2002-05-20 2003-05-20 Airbag ignition device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38192002P 2002-05-20 2002-05-20
US10/261,330 US20030213395A1 (en) 2002-05-20 2002-09-30 Airbag igniter

Publications (1)

Publication Number Publication Date
US20030213395A1 true US20030213395A1 (en) 2003-11-20

Family

ID=29406466

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/261,330 Abandoned US20030213395A1 (en) 2002-05-20 2002-09-30 Airbag igniter

Country Status (5)

Country Link
US (1) US20030213395A1 (en)
EP (1) EP1364844A3 (en)
JP (1) JP2003335212A (en)
KR (1) KR20030090527A (en)
CA (1) CA2421051A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070129868A1 (en) * 2004-06-17 2007-06-07 Fci Americas Technology, Inc. Vehicle air bag electrical system
US20080072748A1 (en) * 2004-09-21 2008-03-27 Autoliv Development Ab Electropyrotechnic Initiator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002088C1 (en) * 1990-01-25 1990-08-23 Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh, 8261 Aschau, De
US5099762A (en) * 1990-12-05 1992-03-31 Special Devices, Incorporated Electrostatic discharge immune electric initiator
US5596163A (en) * 1993-08-25 1997-01-21 Ems-Patvag Ag Gas generator igniting capsule
US5847310A (en) * 1993-12-28 1998-12-08 Nippon Kayaku Kabushiki-Kaisha Squib for an air bag with an auto ignition composition
DE29921493U1 (en) * 1999-12-07 2000-04-13 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Igniter and gas generator for use in vehicle occupant restraint systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070129868A1 (en) * 2004-06-17 2007-06-07 Fci Americas Technology, Inc. Vehicle air bag electrical system
US20080072748A1 (en) * 2004-09-21 2008-03-27 Autoliv Development Ab Electropyrotechnic Initiator
US7652868B2 (en) 2004-09-21 2010-01-26 Autoliv Development Ab Electropyrotechnic initiator

Also Published As

Publication number Publication date
EP1364844A3 (en) 2004-03-17
KR20030090527A (en) 2003-11-28
CA2421051A1 (en) 2003-11-20
JP2003335212A (en) 2003-11-25
EP1364844A2 (en) 2003-11-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: OSRAM SYLVANIA INC., MASSACHUSETTS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BALDENSPERGER, DOULGAS T.;REEL/FRAME:013357/0598

Effective date: 20020927

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION