The invention discloses a gas generator for a small injection molding type airbag. The gas generator comprises an upper cover and a lower cover, the upper cover and the lower cover are fixedly connected to form an explosive cavity, a plurality of first exhaust holes and a rupture disk are arranged on the side wall of the upper cover, the rupture disk is fixedly connected with the side wall of theupper cover, and the rupture disk is located in the explosive cavity and completely covers the first exhaust holes. A medicine cup assembly, a filter and gas production medicine are arranged in the medicine cavity, the center of the bottom of the lower cover sinks into the medicine cavity to form a groove, one end of the medicine cup assembly is connected with the bottom of the groove, the other end of the medicine cup assembly is located at the bottom of the upper cover, and a center hole is formed in the bottom of the groove and internally provided with an ignition assembly which is fixedlyconnected with the lower cover through injection molding; one end of the ignition assembly is located in the groove, the other end of the ignition assembly is located in the powder cup assembly, 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 first exhaust hole. The beneficial effect of the gas generator is that the number of parts is reduced.

    本发明公开了一种小型注塑式安全气囊用气体发生器,它包括上盖和下盖,上盖和下盖固定连接且构成一个药腔,上盖侧壁上设有若干个排气孔一和爆破膜,爆破膜与上盖侧壁固定连接,爆破膜位于药腔内且完全覆盖若干个排气孔一,药腔内设有药杯总成、过滤器和产气药,下盖底部中心向药腔内凹陷形成凹槽,药杯总成一端与凹槽的底部连接,药杯总成另一端位于上盖底部,凹槽底部设有中心孔,中心孔内设有点火总成,点火总成通过注塑与下盖固定连接,点火总成的一端位于凹槽内,点火总成另一端位于药杯总成内,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一之间。本发明的有益效果是:减少了零部件数量。


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    Title :

    Gas generator for small injection molding type airbag


    Additional title:

    一种小型注塑式安全气囊用气体发生器


    Contributors:
    ZHANG JIANPING (author) / DI HONGRU (author) / WANG WEI (author) / LIANG PAN (author)

    Publication date :

    2021-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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