The invention discloses a bipolar gas generator for a pyrotechnic safety airbag. The generator comprises an upper cover and a lower cover, the upper cover and the lower cover are fixedly connected toform an explosive cavity, the side wall of the upper cover is provided with a plurality of exhaust holes and a rupture disk, the rupture disk is located in the explosive cavity and completely covers the exhaust holes, and a first-stage explosive cup, a second-stage explosive cup and a filter are arranged in the explosive cavity. The first-stage explosive cup is internally provided with starting mix, the second-stage explosive cup is internally provided with aerogenesis explosive, the center of the bottom of the lower cover is sunken towards the interior of the explosive cavity to form a groove, the first-stage explosive cup and the second-stage explosive cup are both connected with the bottom of the groove, the bottom of the groove is connected with two ignition assemblies, one end of oneignition assembly is located in the first-stage explosive cup, and one end of the other ignition assembly is located in the second-stage explosive cup. The other ends of the ignition assemblies penetrate through the bottom of the groove, one end of the filter is connected with the upper cover, the other end of the filter is connected with the lower cover, and the rupture disk is located between the filter and the exhaust holes. The bipolar gas generator has the beneficial effect that the inflation amount of an air bag is sufficient.
本发明公开了一种烟火式安全气囊用双极气体发生器,它包括上盖和下盖,上盖和下盖固定连接且构成药腔,上盖侧壁上设有若干个排气孔和爆破膜,爆破膜位于药腔内且完全覆盖若干个排气孔,药腔内设有一级药杯、二级药杯和过滤器,一级药杯内设有传火药,二级药杯内设有产气药,下盖底部中心向药腔内凹陷形成凹槽,一级药杯和二级药杯均与凹槽底部连接,凹槽底部连接有两个点火总成,其中一个点火总成一端位于一级药杯内,另一个点火总成一端位于二级药杯内,点火总成另一端贯穿凹槽底部,过滤器一端与上盖连接,过滤器另一端与下盖连接,爆破膜位于过滤器和排气孔之间。本发明的有益效果是:气袋充气量充足。
Bipolar gas generator for pyrotechnic safety airbag
一种烟火式安全气囊用双极气体发生器
2020-12-25
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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