PYROTECHNIC ENERGY IGNITER Russian patent published in 2023 - IPC F42C11/00 F42C19/08 F42B3/10 F42B3/12 

FIELD: igniting energy materials.

SUBSTANCE: invention can be used in blasting operations in the extraction of minerals, as well as for actuating airbags in cars. A pyrotechnic energy igniter consists of a board with a low thermal conductivity dielectric film applied and with contact pads formed on it and, placed between the contact pads, two areas of a conductive multilayer energy film with the effect of self-propagating high-temperature synthesis (SHS), connected by a resistive bridge made of the same conductive multilayer energy film. Two areas of the conductive multilayer energy film are made identical from Ni/Al, Ti/Al, Pd/Al, Ru/Al, Co/Al with a thickness of not more than 5 mcm. The resistive bridge is made with a tapering width towards its middle. The contact pads are made of a material with high electrical conductivity. The areas of the conductive multilayer energy film are covered with a thermite multilayer energy film of NiO/Al, CuO/Al, MoO₃ /Al, CuO/Ti, NiO/Ti with a thickness of not more than 5 mcm.

EFFECT: creation of a structure with a low electrical ignition power, with a large area of a multilayer energy film, with a higher released energy.

4 cl, 3 dwg