초록 ▼

A squib that is used by being connected to a bus is formed by assembling an explosive unit and a communication/ignition unit that have been constructed as separate components. The communication/ignition unit is provided with an IC substrate for ignition and communication that is electrically connect

A squib that is used by being connected to a bus is formed by assembling an explosive unit and a communication/ignition unit that have been constructed as separate components. The communication/ignition unit is provided with an IC substrate for ignition and communication that is electrically connected to a bus wire. The explosive unit is provided with explosive, an ignition element, and a header that is interposed between the ignition element and the IC substrate, and that electrically connects the two. In this IC integrated type of squib that is used for communication and ignition, it is possible to prevent the explosive and the IC from mutually interfering with the performances of each other.

대표청구항 ▼

What is claimed is: 1. A squib for connecting to a bus, the squib being able to be selectively operated by electrical energy and electrical signals supplied from a control apparatus, and a plurality of the squibs being connected via a common bus wire to the control apparatus, the squib comprising:

What is claimed is: 1. A squib for connecting to a bus, the squib being able to be selectively operated by electrical energy and electrical signals supplied from a control apparatus, and a plurality of the squibs being connected via a common bus wire to the control apparatus, the squib comprising: a communication/ignition unit that is provided with a communication/ignition circuit that is electrically connected to the bus wire; and an explosive unit having a connecting unit in which the communication/ignition unit is disposed, wherein: the explosive unit is provided with an explosive, an ignition element, and a header that is interposed between the ignition element and the communication/ignition circuit; said header is provided with a main body formed of an electrically conductive material; and the main body exclusively electrically connects the ignition element and the communication/ignition circuit, the squib further comprising: an integrated circuit substrate on which the communication/ignition circuit is provided; and electrical contacts projecting from an end of the integrated circuit substrate and which engage the header without extending though the header. 2. The squib according to claim 1, wherein said explosive unit further comprises a cylindrical cap with a closed end, said explosive, said ignition element and said header being disposed within said cap, with said explosive disposed adjacent said closed end, and said ignition element sandwiched between said explosive and said header. 3. The squib according to claim 1, wherein said header separates said explosive and said communication/ignition unit such that any gas emitted by the explosive is prevented from contacting the communication/ignition unit, and any moisture from the communication/ignition unit does not contact the explosive. 4. The squib according to claim 1, wherein said explosive unit further comprises a cylindrical cap with a closed end, said explosive being disposed within said cap, sandwiched between said closed end and said header. 5. The squib according to claim 4, wherein said header prevents any gas emitted by said explosive over time from contacting said communication/ignition circuit. 6. The squib according to claim 1, wherein said communication/ignition unit and said explosive unit are formed separately and connected together with the connecting unit. 7. The squib according to claim 1, wherein said connecting unit is formed of resin. 8. A squib for connecting to a common bus wire and for being selectively operated by electrical energy and electrical signals supplied from a control apparatus, the squib comprising: a communication/ignition unit including a communication/ignition circuit provided on an integrated circuit substrate, and which is adapted to be electrically connected to the bus wire; an explosive unit including an explosive, an ignition element, and a header that is interposed between the ignition element and the communication/ignition circuit; and a connecting unit connecting said communication/ignition unit to said explosive unit; wherein: the header is provided with a main body formed of an electrically conductive material; and the main body exclusively electrically connects the ignition element and the communication/ignition circuit, wherein the communication/ignition unit comprises electrical contacts projecting from an end of the integrated circuit substrate and which engage the header without extending though the header. 9. The squib according to claim 8, wherein said explosive unit further comprises a cylindrical cap with a closed end, said explosive, said ignition element and said header being disposed within said cap, with said explosive disposed adjacent said closed end, and said ignition element sandwiched between said explosive and said header. 10. The squib according to claim 8, wherein said header separates said explosive and said communication/ignition unit such that any gas emitted by the explosive is prevented from contacting the communication/ignition unit, and any moisture from the communication/ignition unit does not contact the explosive. 11. The squib according to claim 8, wherein said explosive unit further comprises a cylindrical cap with a closed end, said explosive being disposed within said cap, sandwiched between said closed end and said header. 12. The squib according to claim 11, wherein said header prevents any gas emitted by said explosive over time from contacting said communication/ignition circuit. 13. The squib according to claim 8, wherein said connecting unit is formed of resin. 14. An airbag triggering system comprising: a common bus wire; a control apparatus; a plurality of squibs being connected via the common bus wire to the control apparatus and being able to be selectively operated by electrical energy and electrical signals supplied from the control apparatus, each squib comprising: a communication/ignition unit that is provided with a communication/ignition circuit that is electrically connected to the bus wire; and an explosive unit having a connecting unit in which the communication/ignition unit is disposed, wherein: the explosive unit is provided with an explosive, an ignition element, and a header that is interposed between the ignition element and the communication/ignition circuit; said header is provided with a main body formed of an electrically conductive material; and the main body exclusively electrically connects the ignition element and the communication/ignition circuit, wherein the explosive unit, the ignition element, and the header are completed as a single element, and wherein the header completely separates the explosive and the communication/ignition unit such that any gas emitted by the explosive is prevented from contacting the communication/ignition unit, and any moisture from the communication/ignition unit does not contact the explosive, the airbag triggering system further comprising: an integrated circuit substrate on which said communication/ignition circuit is provided; and electrical contacts projecting from an end of the integrated circuit substrate and which engage the header without extending though the header. 15. The airbag triggering system according to claim 14, wherein said explosive unit further comprises a cylindrical cap with a closed end, said explosive, said ignition element and said header being disposed within said cap, with said explosive disposed adjacent said closed end, and said ignition element sandwiched between said explosive and said header. 16. The airbag triggering system according to claim 14, wherein said explosive unit further comprises a cylindrical cap with a closed end, said explosive being disposed within said cap, sandwiched between said closed end and said header, and wherein said header prevents any gas emitted by said explosive over time from contacting said communication/ignition circuit.