초록 ▼

The present invention relates to a metal-sealing material-feedthrough for igniters of airbags or belt tensioning devices, especially glass-metal-feedthrough, including at least one metal pin which is located in a feedthrough opening in the base body in a sealing material, wherein the base body has a

The present invention relates to a metal-sealing material-feedthrough for igniters of airbags or belt tensioning devices, especially glass-metal-feedthrough, including at least one metal pin which is located in a feedthrough opening in the base body in a sealing material, wherein the base body has a front side and a back side. Structure is provided between the front and the back side in order to avoid a relative movement of sealing material in the direction toward the back relative to the inside circumference of the feedthrough opening. At least the feedthrough opening is punched out of the base body. The base body is configured so that the ratio of thickness (D) of the base body to the maximum dimension of the feedthrough opening vertical to the axis direction of the feedthrough opening is in the range of between and including 0.9 to 1.6.

대표청구항 ▼

1. An igniter metal-sealing material-feedthrough for one of an air bag and a belt tensioning device, comprising: a base body including a feedthrough opening formed by punching, a front side, and a back side, said base body being configured such that a ratio of a thickness of said base body to a maxi

1. An igniter metal-sealing material-feedthrough for one of an air bag and a belt tensioning device, comprising: a base body including a feedthrough opening formed by punching, a front side, and a back side, said base body being configured such that a ratio of a thickness of said base body to a maximum dimension of said feedthrough opening vertical to an axis direction of said feedthrough opening is in a range of between and including approximately 0.8 to 1.6, said thickness of said base body being between 1.8 mm and 3.0 mm;a sealing material, said sealing material being one of a glass slug, a ceramics slug, and a glass-ceramic slug;at least one first metal pin which is located in said feedthrough opening in said base body in said sealing material; andsaid feedthrough opening including a structure between said front side and said back side, said structure being configured for avoiding a relative movement of said sealing material in a direction toward said back side relative to an inside circumference of said feedthrough opening. 2. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said ratio is in a range of between and including approximately 0.9 to 1.6. 3. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said ratio is in a range of between and including approximately 0.9 to 1.4. 4. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said ratio is in a range of between and including approximately 0.9 to 1.3. 5. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said ratio is in a range of between and including approximately 1.0 to 1.2. 6. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said thickness of said base body is between 1.5 mm and 3.1 mm. 7. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said thickness of said base body is between 1.8 mm to 3.0 mm. 8. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said thickness of said base body is between 2.0 mm to 2.6 mm. 9. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said feedthrough opening has a circular cross section. 10. The igniter metal-sealing material feedthrough in accordance with claim 9, wherein one of a largest possible dimension and diameter of said feedthrough opening is in a range of 1.88 mm to 2.19 mm. 11. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said feedthrough opening has an oval cross section. 12. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said feedthrough opening has an elliptical cross section. 13. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said base body with said feedthrough opening is in a form of a punched component. 14. The igniter metal-sealing material-feedthrough in accordance with claim 13, wherein said punched component is a ground. 15. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said structure is one of an integral component of said base body and a structural unit with said base body. 16. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said structure includes at least one undercut on said inside circumference of said feedthrough opening in said base body between said back side and said front side, said at least one undercut originating from said back side. 17. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said structure includes an element which is inserted into said feedthrough opening, at least one of said inside circumference of said feedthrough opening and an outside circumference of said element possesses a roughness of ≧10 μm. 18. The igniter metal-sealing material-feedthrough in accordance with claim 1, further comprising a second metal pin. 19. The igniter metal-sealing material-feedthrough in accordance with claim 18, wherein said at least one first metal pin and said second metal pin are located parallel to each other. 20. The igniter metal-sealing material-feedthrough in accordance with claim 18, wherein said second metal pin is a grounding pin and is ground at said back side of said base body. 21. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said sealing material is formed as a sealing material slug, wherein said at least one first metal pin is connected firmly with said sealing material slug. 22. The igniter metal-sealing material-feedthrough in accordance with claim 21, wherein said at least one first metal pin is fused with said sealing material. 23. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said sealing material includes said glass slug formed from one of a molten glass and a high performance polymer. 24. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said base body is standard steel. 25. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said structure includes at least one frictional connection between said sealing material and said feedthrough opening to avoid relative movement between said sealing material and said feedthrough opening. 26. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said base body is a type of steel including one of X12CrMoS17, X5CrNi1810, XCrNiS189, X2CrNi1911, X12CrNi177, X5CrNiMo17-12-2, X6CrNiMoTi17-12-2, X6CrNiTi1810, X15CrNiSi25-20, X10CrNi1808, and X2CrNiMo17-12-2. 27. The igniter metal-sealing material-feedthrough in accordance with claim 1, wherein said structure is configured such that a hydrostatic pressure which must be applied to eject one of said glass slug, said ceramic slug, and said glass-ceramic slug from said feedthrough opening in said direction toward said back side is between 1500 bar and 2500 bar. 28. An ignition device for airbags, said ignition device comprising a metal-sealing material-feedthrough including: a base body including a feedthrough opening formed by punching, a front side, and a back side, said base body being configured such that a ratio of a thickness of said base body to a maximum dimension of said feedthrough opening vertical to an axis direction of said feedthrough opening is in a range of between and including approximately 0.8 to 1.6, said thickness of said base body being between 1.8 mm and 3.0 mm;a sealing material, said sealing material being one of a glass slug, a ceramics slug, and a glass-ceramic slug;at least one first metal pin which is located in said feedthrough opening in said base body in said sealing material; andsaid feedthrough opening included a structure between said front side and said back side, said structure being configured for avoiding a relative movement of said sealing material in a direction toward said back side relative to an inside circumference of said feedthrough opening. 29. An ignition device for belt tensioning devices, said ignition device comprising a metal-sealing material-feedthrough including: a base body including a feedthrough opening formed by punching, a front side, and a back side, said base body being configured such that a ratio of a thickness of said base body to a maximum dimension of said feedthrough opening vertical to an axis direction of said feedthrough opening is in a range of between and including approximately 0.8 to 1.6, said thickness of said base body being between 1.8 mm and 3.0 mm;a sealing material, said sealing material being one of a glass slug, a ceramics slug, and a glass-ceramic slug;at least one first metal pin which is located in said feedthrough opening in said base body in said sealing material; andsaid feedthrough opening including a structure between said front side and said back side, said structure being configured for avoiding a relative movement of said sealing material in a direction toward said back side relative to an inside circumference of said feedthrough opening.