| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a temperature increase in a coil base for placing a heating coil by efficiently cooling an electromagnetic shield member for reducing leakage magnetic flux of the heating coil. <P>SOLUTION: An induction heating cooking device includes: a heating coil 3a provided inside a body 1; the coil base 4 placing the heating coil 3a; a fan device 9 disposed inside the body 1 and cooling the heating coil 3a; and a duct 10 guiding air blown from the fan device 9 to the heating coil 3a. The coil base 4 includes: an inner-peripheral section 4a; an outer-peripheral section 4b; and a radial rib 4c extended from the inner-peripheral section 4a to the outer-peripheral section 4b. The rib 4c includes a ferrite 5 blocking a downward flow of a line of magnetic force generated in the heating coil 3a. A nearly annular electromagnetic shield member 6 canceling leakage magnetic flux generated by the heating coil 3a positioned outside the heating coil 3a is placed at the outer-peripheral section 4b. In the induction heating cooking device, a slit hole 32 for cooling that cools the electromagnetic shield member 6 is provided at the outer-peripheral section 4b of the coil base 4 positioned on an extension of the ferrite 5. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
