Patent ID: 7059312

Claim:
An electric ignition unit for igniting propellants comprising: at least one electrically conductive pin ( 1 ); a pin holder ( 2 ) having a metal ring ( 2 . 1 ) which encloses said pin ( 1 ) creating an annular cavity; an insulating filling ( 2 . 2 ) in the annular cavity; at least one of an electrically conductive or semi-conductor bridge ( 2 . 3 ) between said metal ring ( 2 . 1 ) and said pin ( 1 ); a sealing cap ( 3 ) which is connected to the one face side of said pin holder ( 2 ) and which receives the propellant; a plug ( 5 ) which can be connected in a positive or non-positive way with said metal ring ( 2 . 1 ) on its end averted from said sealing cap ( 3 ) and which enters into an electrically conductive connection with said pin ( 1 ) in operation with at least one of either said metal ring ( 2 . 1 ) or said plug ( 5 ), being provided with a coating in the region between the mutual connection, which coating has a low electric contact resistance between said plug ( 5 ) and said metal ring ( 2 . 1 ); the electric contact resistance between plug ( 5 ) and the metal ring ( 2 . 1 ) being smaller than 0.5 Ω; and at least the end of said plug ( 5 ) close to the metal ring ( 2 . 1 ) being arranged as a sleeve ( 5 . 2 ), grasping the end of said metal ring ( 2 . 1 ) which is close to it with said sleeve ( 5 . 2 ) and said metal ring ( 2 . 1 ) forming a snap-in connection with each other.