INDUCTION COOKING DEVICE

摘要

The invention relates to an induction cooking device including at least one inductor arranged beneath a thermally reinforced glass plate, the composition of which is not lithium aluminosilicate, characterized in that the glass has the following features: the thickness thereof is at most 4.5 mm; the c/a ratio of the glass prior to reinforcement is at most 3.0 after Vickers indentation under a 1 kg load, c being the length of the radial cracks and a being the half-diagonal of the Vickers indent; the s/(e.E.a) ratio is at least 20 K.mm-1, or even 30 K.mm-1, s being the maximum stress generated at the core of the glass by the thermal reinforcement in Pa, e being the thickness of the glass in mm, E being the Young's modulus in Pa, and a being the linear coefficient of thermal expansion of the glass in K-1.