Method of producing a gas generator, and gas generator produced using the method

Abstract

The invention relates to a method of producing a gas generator (1), wherein an igniter (20) is arranged in an interior (I), enclosed by a housing (2) of the gas generator (1) which is to be produced, causing that the igniter (20) is supported on a part (21) of the gas generator (1) along a first direction (R) and is located opposite an installation opening (M) of the housing (2) along the first direction (R), and a sealing element (23) is arranged in the installation opening (M) of the housing (2), for the purpose of sealing an insulation opening (M), causing that the sealing element (23) presses against the igniter (20), by way of an abutment region (23), with a force (F) acting along the first direction (R); a gas-tight connection is formed between the sealing element (23) and the igniter (20). The formation of the abutment region (23b) of the sealing element (23) along the first direction (R) is limited in a side of the sealing element (23) which is directed towards the part (21) along the first direction (R) strikes against a side of the same part (21) of the gas generator (1), which is directed towards the sealing element (23) along the first direction (R). The invention alsorelates to a gas generator (1), having a housing (2) for the gas generator (1), the housing enclosing an interior (I) of the gas generator (1), for the interior to be filled with propellant (17), having an igniter (20) for igniting the propellant (17), wherein the propellant (17) generates gas, the igniter (20) is supported on a part of the gas generator (1) along a first direction (R), having aninstallation opening (M) in the housing (2), for producing the gas generator (1), components of the gas generator (1) can be introduced into the interior (I) of the gas generator (1).

Description

technical field [0001] The present invention relates to a method of manufacturing a gas generator and a gas generator manufactured using the method. Background technique [0002] Such gas generators are used in particular in airbag modules (eg for motor vehicles) and serve to release gas which is used to inflate an airbag of such an airbag module. [0003] For this purpose, known gas generators have an igniter by means of which the propellant located in the gas generator housing can be ignited, which serves to generate the necessary amount of gas. In known gas generators, the igniter is usually introduced into the housing of the gas generator through a mounting hole. The mounting hole is sealed eg by a sealing device (sealing element), with the difficulty that the connection between the igniter and the sealing device must be gas-tight so that the gas generated by the gas generator cannot flow out of the mounting hole. Therefore, in the known gas generator, firstly, the sea...

AI Technical Summary

Problems solved by technology

The mounting hole is sealed by e.g. a sealing device (sealing element), where there is a difficulty that the connection between the igniter and the sealing device must be airtight so that the gas generated by the gas generator cannot flow out of the mounting hole

Therefore, in the known gas generator, firstly, the sealing device and the igniter are clamped together in a shape-matching manner, which makes the form of the sealing element more complicated, resulting in high manufacturing costs of the sealing element

Images