Introduction:
The pre-tightened seat belt is a safety device to protect the occupants of the car. The characteristic of the pre-tightened seat belt is that when the car is in a collision, it will quickly tighten the seat belt and fix the occupant on the seat when the occupant has not moved forward. , Prevent the occupants from leaning forward and effectively protect the safety of the occupants. This seat belt is equipped with a seatbelt tube gas Inflator.
Ⅰ. ProductIntroduction
Seatbelt tube gas Inflator of the pre-tightened seat belt consists of a generator body, gunpowder, and explosive-connector components. When it works, ECU sends a signal, enters the ignition assembly through the wire harness, directly detonates the gunpowder, and generates high-pressure gas directly out of the opening at the other end of the generator body, pushing the transmission part in the pretensioning device to pull the reel back.
Seatbelt tube gas Inflator for automobile seat belt pretensioner. The main research contents include: the influence of bridge wire diameter on the inductance of ignition head; the inductance of lead thiocyanate [Pb(SCN)] and potassium picrate [CHONK] ; The charge design of the ignition device; the design of the gas generating agent. The research results show that: when the diameter of the bridge wire is 0.05mm, the ignition powder is Pb(SCN)/KClO/KClO, and the gas generating agent is 2/1 camphor single base emission During the medicine, the technical indicators of seatbelt tube gas Inflator can reach the minimum ignition current ≤ 2A (2ms), the maximum safe current ≥ 0.4A (10s), the working pressure ~ 45.0MPa, and the working time <8ms.
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