| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve the handling convenience of equipment having an operating switch arranged on a top plate. <P>SOLUTION: The heating cooker comprises a main body to constitute an outer frame, a tope plate installed at the upper side of the main body, right and left heating coils which are induction heating means to induction-heat by a high-frequency current a heating object mounted on the top plate, touch switches of electrostatic capacity types which are installed on the nearly same face as the top plate and controls the induction heating means, and a control means which recognizes that the switch is inputted when the differential voltage between a reference voltage when a human does not touch the touch switch and a detection voltage when the human touches it is larger than a prescribed voltage. A prescribed voltage level at the time of heating by the heating coil is made smaller that in at the time of non-heating, and thereby an effect to the touch switch detection circuit by the high-frequency current of the induction heating can be removed, and an optimal detection level of the touch switch can be secured regardless of the turning-on/off of the induction heating. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
