Side safety air curtain

By designing intermittent annular and linear locking structures in the car's side safety air curtains, and utilizing the airflow direction and opening design, the problem of airbag deflection caused by unstable airflow is solved, and the consistency of the front and rear cavity gas filling is achieved, which improves Occupant safety.

CN114620003AActive Publication Date: 2022-06-14ZHEJIANG GEELY HLDG GRP CO LTD +1
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Patent Information

Application Number
CN202210307179.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2022-03-25
Publication Date
2022-06-14
Estimated Expiration
2042-03-25

AI Technical Summary

Technical Problem

Due to the unstable air flow when the existing automobile side safety air curtain is inflated, it is easy to cause the air bag to deflect and fail to expand to the ideal shape, and the front and rear cavities are filled inconsistently, affecting the safety of the occupants.

Method used

A side safety air curtain is designed, which includes a first cavity and a second cavity that can be expanded when inflated. Multiple locking areas are provided in the cavity to form an intermittent annular and linear structure. The airflow direction and opening design are used to make The gas flows in different directions during the inflation and exhaust processes to ensure stable expansion of the air bag, and is connected to the first cavity through the second air outlet to adjust the consistency of the gas filling time.

Benefits of technology

It effectively reduces the deflection of the air bag caused by unstable air flow, ensures the stable deployment of the air curtain body, ensures the consistency of filling of the front and rear cavities, and improves the head protection effect of the occupants.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention provides a side safety air curtain, and belongs to the field of safety air curtains. The air curtain is characterized in that the air curtain comprises an air curtain body, the air curtain body comprises a first cavity capable of expanding during air inflation, the first cavity is provided with a plurality of first locking areas which are arranged at intervals, and the first locking areas define a discontinuous ring shape, so that the first cavity is limited to be in a concentric-square shape; the multiple first locking areas are arranged in the mode that gas flows in the first rotation direction at the moment of gas inflation so as to inflate the first cavity, and after the first cavity is inflated with the gas, the gas flows in the second rotation direction opposite to the first rotation direction. The cavity is internally provided with the plurality of locking areas which limit the cavity to form the shape like the Chinese character'hui ', so that gas flows in the first rotating direction to fill the cavity at the moment of gas inflation, and flows in the second rotating direction opposite to the first rotating direction after the cavity is filled with the gas, and therefore, gas bag deflection caused by unstable gas flow is reduced, and the stability of the gas bag is improved. And the air curtain body is more stable.
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