Panasonic Corporation

Masaharu Ohashi

Kenji Watanabe

Hiroshi Tominaga

Tomoya Fujinami

Shintaro Noguchi

An induction heating cooker including a top plate where a pan is placed; a heating coil for induction heating the pan; an inverter circuit for supplying a high frequency current to the heating coil; an infrared sensor, which is arranged under the heating coil and detects an infrared light radiated from the pan; a light guiding part including an upper opening formed at an upper end facing the top plate and a lower opening formed at a lower end, and guiding the infrared light from the pan to the infrared sensor; and a control unit for controlling an output of the inverter circuit according to an output from the infrared sensor; wherein the light guiding part includes a nonmetallic material part in which the upper opening is formed upper than a lower surface of the heating coil.

Induction heating cooker

An induction heating cooking device includes a heating coil () that induction-heats a cooking container, an infrared sensor () that detects infrared radiation which is emitted from a bottom surface of the cooking container and that outputs a detection signal based on the quantity of energy of the detected infrared radiation, and a heating control section () that controls supply of electric power to the heating coil based on the detection signal. When the temperature of the bottom surface of the cooking container is equal to or higher than a first predetermined temperature which is higher than 230 degrees C., the infrared sensor () outputs the detection signal, and when the bottom-surface temperature is lower than the first predetermined temperature, the infrared sensor () does not output the detection signal substantially.

Growing community of inventors

Hyogo, Japan

Masaharu Ohashi