Ignition device for spark ignition engines

摘要

The invention relates to an ignition device for an Otto engine, comprising an ignition coil, a printed circuit board, which carries a control circuit with a power transistor, a plastic housing, in which the ignition coil and the printed circuit board are arranged, and a thermal dissipation element, which protrudes through a wall of the plastic housing. In accordance with this disclosure, the printed circuit board carries a cooling body, which is plugged together with the thermal dissipation element to form a thermal bridge, which dissipates thermal losses of the control circuit out from the plastic housing.

主权项

1. An ignition device for an Otto engine, comprising:
an ignition coil; a printed circuit board, which carries a control circuit comprising a power transistor; a plastic housing in which the ignition coil and the printed circuit board are arranged; and a thermal dissipation element, which protrudes through a wall of the plastic housing; wherein the printed circuit board carries a cooling body plugged together with the thermal dissipation element to form a thermal bridge, which dissipates thermal losses of the control circuit from the plastic housing; wherein the thermal dissipation element comprises a connector that connects the thermal dissipation element to an engine block; and wherein the thermal dissipation element comprises a bushing spaced away from and connected to the circuit board via a strip that is plugged to the circuit board.