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Three-stage firework type gas generator

A gas generator, pyrotechnic technology, applied in vehicle safety arrangement, pedestrian/occupant safety arrangement, transportation and packaging, etc., can solve problems such as explosion

Pending Publication Date: 2022-04-12
均胜汽车安全系统(湖州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the lack of detonation of the second stage due to heat transfer even when the single-stage detonation signal is triggered in the prior art. The delivery of the three-stage pyrotechnic gas generator that results in detonation

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  • Three-stage firework type gas generator
  • Three-stage firework type gas generator
  • Three-stage firework type gas generator

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 In the described embodiment, a three-stage pyrotechnic gas generator includes a housing 1, a housing cavity 2 is provided inside the housing 1, and a combustion chamber 3 and a combustion chamber are installed in the housing cavity 2. Body two 12, the side wall of combustion cavity one 3 is provided with several through holes 4, as figure 2 As shown, the side wall of the combustion chamber 2 12 is provided with a cavity opening 20, and an air pressure switch assembly is installed at the cavity opening 20, and the cavity opening 20 is sealed and connected with the air pressure switch assembly.

[0024] Such as figure 1As shown, the housing 1 is composed of shell valve one 9 and shell valve two 13, the opening of shell valve one 9 is fixed with shell valve buckle 10, and the opening of shell valve two 13 is provided wit...

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PUM

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Abstract

The invention discloses a three-stage firework type gas generator. The device comprises a shell, a shell cavity is formed in the shell, a first combustion cavity and a second combustion cavity are installed in the shell cavity, a plurality of through holes are formed in the side wall of the first combustion cavity, a cavity opening is formed in the side wall of the second combustion cavity, an air pressure switch assembly is installed at the position of the cavity opening, and the through holes are communicated with the air pressure switch assembly. And the cavity opening is hermetically connected with the air pressure switch assembly. The device has the beneficial effects that the second stage cannot be detonated due to heat transfer when a detonating signal is not received; different air bag unfolding requirements of the air bag under different collision conditions are effectively met; and different gas output rates can be effectively adjusted.

Description

technical field [0001] The invention relates to the related technical field of gas generators, in particular to a three-stage pyrotechnic gas generator. Background technique [0002] At present, there are only gas generators for bipolar airbags in the market, which can trigger single-pole burst signals or double-pole burst signals under different levels of vehicle collisions, so as to realize different inflation states of airbags and different protection states for personnel. [0003] Even if the existing bipolar gas generator for airbags gives a single-pole detonation signal, the second pole will also be detonated due to heat transfer, but the time is delayed. And when the second pole signal is single-triggered, the gas output will be very late, resulting in failure to protect personnel. Contents of the invention [0004] The purpose of the present invention is to overcome the lack of detonation of the second stage due to heat transfer even when the single-stage detonati...

Claims

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Application Information

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IPC IPC(8): B60R21/264B60R21/26B60R21/263
Inventor 万展王威
Owner 均胜汽车安全系统(湖州)有限公司