| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that recently, rice cookers are increased each of which not only inductively heats only an inner pan but also inductively heats multiple components in a body, and in such a product, a converntional configuration is compatible with a case where intense radiation noise is produced during induction heating of components other than the inner pan. <P>SOLUTION: Set time Ton of a timer means 10 can be periodically increased/decreased by a Ton fluctuation means 39 not only when induction-heating an inner pan 22, but also when induction-heating a lid heating plate 25 and a water container 26 by a switching means 28. Increase/decrease of the set time Ton prevent the oscillation frequency of induction heating from being fixed thereby to prevent the spectrum of a radiation noise from dispersing to have a big peak. As a result, the radiation noise can be reduced even when induction-heating the lid heating plate 25 and the water container 26. <P>COPYRIGHT: (C)2012,JPO&INPIT |
