The embodiment of the invention provides a gas generator and a safety airbag, and relates to the field of gas generators. The gas generator comprises an upper shell, a lower shell, a filter screen and a blocking piece, the upper shell is provided with an exhaust hole, the lower shell is connected with the upper shell, the lower shell and the upper shell form a combustion chamber, the exhaust hole is communicated with the combustion chamber, the filter screen is arranged in the combustion chamber, the filter screen abuts against the upper shell and the lower shell at the same time, the filter screen covers the exhaust hole, and the blocking piece is arranged in the combustion chamber. Blocking pieces are arranged between the upper shell and the filter screen and between the lower shell and the filter screen, and the blocking pieces are used for blocking an upper gap formed between the upper shell and the filter screen and a lower gap formed between the lower shell and the filter screen under the condition that the upper shell and the lower shell deform. The blocking piece can form blocking at the positions of the upper gap and the lower gap, gas and residues in the combustion chamber are prevented from leaking from the upper gap and the lower gap, the amount of the residues flowing out from the side direction is effectively reduced, and the leakage prevention effect is improved.
本发明的实施例提供了一种气体发生器及安全气囊,涉及气体发生器领域。该气体发生器包括上壳、下壳、过滤网以及阻挡件,上壳设有排气孔,下壳和上壳连接,且下壳和上壳形成燃烧腔室,排气孔和燃烧腔室连通,过滤网设置于燃烧腔室,过滤网同时与上壳和下壳抵接,且过滤网覆盖于排气孔,上壳和过滤网之间以及下壳和过滤网之间均设有阻挡件,阻挡件用于在上壳和下壳发生形变的情况下,对上壳和过滤网之间形成的上缝隙以及下壳和过滤网之间形成的下缝隙进行阻挡。阻挡件能够在上缝隙和下缝隙的位置形成阻挡,避免燃烧腔室内的气体和残渣从上缝隙和下缝隙中泄露,有效减少了从侧向流出的残渣量,提高防泄漏效果。
Gas generator and safety airbag
一种气体发生器及安全气囊
2023-06-27
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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