| 摘要 |
PURPOSE: Electric initiator having a sealing material forming a ceramic to metal seal is provided to isolates a header and ignition charge against accidental ignition, to protect against leakage of unfiltered gas from an inflator system. CONSTITUTION: An airbag initiator (124) having an ignition charge (83) and a low temperature ignition charge (85) in an inner case (82) and a metal header (86) closing the inner case (82), a glass seal (89) providing feed through of one or more electrical connections (96, 97) to the ignition charge (83) through the header (86). A ceramic base (88) supports the header and their spaced relationship is maintained by the glass seal (89). The ceramic base (88) and glass seal (89) electrically isolates the header (86) and ignition charge (83) against accidental ignition. The ceramic to glass to metal seal provides protection against leakage of unfiltered gas from the inflator system. A ferromagnetic pressed material (125) is assembled into the ceramic base (88) and its spaced relationship to the ceramic body (88) and the electrical connections (96, 97) are maintained by a single continuous glass seal (89).
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