Abrégé

The present invention concerns a coupling and power transmission system for an electric igniter, in particular for single-shot type fireworks (10), the system comprising a casing (11), in which the pyrotechnic components are housed, said casing having a first side that is open and a second side with a shaped connector (12), said shaped connector (12) comprising a channel (15) for connecting to said pyrotechnic components and adapted to removably receive an electric igniter (16), said electric igniter (16) being rigidly coupled to a printed circuit (18) on a PCB support (17), the printed circuit comprising two concentric tracks which are short-circuited via a connection track on a break-away tab (19) of the PCB support (17), whereby removal of the tab (19) eliminates the short-circuit, said shaped connector (12) being couplable, in a removable manner and with freedom of rotation with respect to an axis, to a docking base (13), said docking base (13) comprising the electronic components for transmission of an electrical signal to said electric igniter (16) and in particular three contacts (20), aligned with each other and dimensioned in relation to said printed circuit (18), ensuring connection between the tracks of said printed circuit (18) and the contacts (20) independently of the angular position of said shaped connector (12) with respect to said docking base.

Classes IPC  ?

• F42B 4/20 - Feux d'artifices, c.-à-d. dispositifs pyrotechniques pour divertir, indiquer, illuminer ou signaler caractérisés par un manche ou support autre qu'une enveloppe, p. ex. tourniquet ou support en épi
• F42B 4/26 - Fusées éclairantesFlambeaux
• H01R 12/71 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires

Abrégé

The present invention concerns a coupling and power transmission system for an electric igniter, in particular for single-shot type fireworks (10), the system comprising a casing (11), in which the pyrotechnic components are housed, said casing having a first side that is open and a second side with a shaped connector (12), said shaped connector (12) comprising a channel (15) for connecting to said pyrotechnic components and adapted to removably receive an electric igniter (16), said electric igniter (16) being rigidly coupled to a printed circuit (18) on a PCB support (17), the printed circuit comprising two concentric tracks which are short-circuited via a connection track on a break-away tab (19) of the PCB support (17), whereby removal of the tab (19) eliminates the short-circuit, said shaped connector (12) being couplable, in a removable manner and with freedom of rotation with respect to an axis, to a docking base (13), said docking base (13) comprising the electronic components for transmission of an electrical signal to said electric igniter (16) and in particular three contacts (20), aligned with each other and dimensioned in relation to said printed circuit (18), ensuring connection between the tracks of said printed circuit (18) and the contacts (20) independently of the angular position of said shaped connector (12) with respect to said docking base.

Classes IPC  ?

• F42B 4/26 - Fusées éclairantesFlambeaux
• H01R 33/20 - Dispositifs à deux pôles ayant des contacts concentriques ou coaxiaux