Patent ID: 8350197

Claim:
An induction heating cooker comprising: a top plate where a pan is placed; a heating coil for induction heating the pan; a heating coil supporting board for holding the heating coil; 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 projection defining an upper opening formed at an upper end of the heating coil supporting board and facing the top plate and a lower projection defining a lower opening formed at a lower end of the heating coil supporting board, and guiding the infrared light from the pan to the infrared sensor through the upper opening and the lower opening, the light guiding part radially spaced from an axial center of the heating coil; a shield part for shielding radiation or light from the heating coil to the infrared sensor at a periphery of the infrared sensor, the shield part extending from the lower projection of the light guiding part, the infrared sensor positioned within the shield part and below the lower projection of the light guiding part, the shield part being configured by non-magnetic metal and covering a lower side and the periphery of 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 above a lower surface of the heating coil.