COOKING APPARATUS WITH INDUCTION HEATING Russian patent published in 2007 - IPC H05B6/12 

FIELD: electric engineering.

SUBSTANCE: cooking apparatus with induction heating contains upper plate, having upper surface for placement of loaded cooker, and letting through infrared radiation, heating coil for induction heating of loaded cooker, inverter for feeding high frequency current to heating coil, detector of infrared radiation, which detects infrared radiation, emitted by loaded cooker, and is positioned above the second surface of upper plate, first heat detector, meant for determining temperature of loaded cooker on basis of output signal of infrared radiation detector, heating controller, meant for controlling the power outputted by inverter, heat-sensitive element for determining temperature of upper plate and second heat detector for determining temperature of loaded cooker on basis of output signal of first heat-sensitive element. Heating controller is meant for determining that the temperature of loaded cooker is stable, if condition is fulfilled, in accordance to which change of temperature, determined by first heat detector, is within limits of given range during a given time period. When the temperature detected by first heat detector does not fulfill aforementioned condition, heating controller determines that temperature of loaded cooker becomes stable, on basis of temperature detected by second heat detector. Cooking apparatus with induction heating precisely determines change of temperature of loaded cooker by detecting infrared radiation of loaded cooker and determining the temperature of loaded cooker due to heat transfer from the cooker even in case when surrounding light falls onto apparatus.

EFFECT: prevented continuation of unintentional heating.

14 cl, 9 dwg