| 摘要 |
PROBLEM TO BE SOLVED: To enhance visibility of a heating chamber interior while a specific electric wave shielding effect is being assured in a door of a high frequency heating device. SOLUTION: In a door 3 installed in a front face of a heating chamber of a high frequency heating device in such a manner as to be capable of being opened and closed, a shielding panel 4 for shielding leakage of electric waves is provided with a plate part 7 having a plurality of through holes 7a penetrating through in a plate thickness direction and a frame part 8 provided in an outer circumference of the plate part 7 for forming a choke space, and the plate part 7 and the frame part 8 are made as separate members. By this constitution, the plate part 7 is provided with an arbitrary plate thickness difficult to be damaged even if the through holes 7a are made at a high density, and for the frame part 8, an arbitrary plate thickness easy to be subjected to sheet metal working can be set.
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