Patent ID: 8936018
Filing Date: 2015-01-20
Classification: F23N

Abstract:
1. A device for lighting and controlling a burner in a household appliance, the device comprising: an electrical supply unit; a lighting circuit; a casing made of non-conducting material and fastenable in use to the household appliance, said casing carrying said electrical supply unit and said lighting circuit; at least one spark plug electrically connected to said lighting circuit and fastenable to the household appliance in proximity of a burner unit carried by the household appliance so as to be electrically connected to a reference potential, the spark plug being adapted to generate a spark between itself and the burner unit to ignite a flame when said lighting circuit is powered by a high voltage alternating current consequent to a feeding of a flow of combustible gas to said burner unit; a light indicator; and a control circuit electrically connected to said spark plug and the light indicator, the light indicator fastenable in use to the household appliance, wherein the control circuit is adapted to selectively turn said light indicator on or off based on a dispersion current flowing through the spark plug to the reference potential when the burner unit is lit, the dispersion current being in an order of a few microamperes, said electrical supply unit is a direct current low voltage generator unit accommodated in the casing, and said electrical supply unit is adapted to supply power, in parallel, to said lighting circuit through a dc/ac transformer unit and to said control circuit through an electrical disconnection unit.