Two-stage automobile safety air bag and using method

Abstract

The invention relates to a two-stage automobile safety air bag. The two-stage automobile safety air bag comprises an air bag and a bipolar generator which are connected with each other, the bipolar generator comprises a wall body, a first ignition piece and a second ignition piece, the first ignition piece and the second ignition piece are located at the two ends of the wall body respectively, thefirst ignition piece and the second ignition piece ignite at the same time, a air cavity filled with compressed air is formed between the first ignition piece and the second ignition piece, and the air cavity is communicated with the air bag through air holes in the wall body. Compared with the prior art, the ignition efficiency can be improved, the air expansion speed can be increased, the air bag unfolding time can be shortened, the protection range can be enlarged, the air bag can be unfolded more quickly and better when collision occurs, and passengers can be protected more effectively.

Description

technical field [0001] The invention relates to the field of automobile safety airbags, in particular to a two-stage automobile safety airbag and a use method thereof. Background technique [0002] In order to protect the occupants in the event of a car collision, side airbags are installed on the sides of the driver and occupants to protect the safety of the occupants. At present, the side airbags of automobiles all adopt single-stage side airbags. After receiving the collision signal, the controller sends an ignition signal to detonate the airbags, which are deployed to protect the occupants, reduce or even avoid the occupants. Existing automobile airbags such as Figure 4 As shown, it includes a monopolar generator 3 and an air bag 2 . [0003] Prior art is all unipolar generator 3, promptly only has unipolar ignition part 11, as Figure 5 and Figure 6 As shown, it takes a long time to inflate after ignition, and the capacity of the single-pole generator 3 cannot be ma...

AI Technical Summary

Problems solved by technology

[0003] Prior art is all unipolar generator 3, promptly only has unipolar ignition part 11, as Figure 5 and Image 6 As shown, it takes a long time to inflate after ignition, and the capacity of the single-pole generator 3 cannot be made too large, otherwise the deployment cannot be completed before the vehicle body is deformed. Due to the small gas volume, the protection range is small, and the safety protection range and effect on the driver and passengers limited

The space requirements from the interior trim to the airbag are relatively high during layout, and it takes a long time from ignition to inflation, and the volume of the airbag 2 is small, and the protection range is relatively small; the development of occupant protection is not easy to meet the target requirements

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