| 摘要 |
PROBLEM TO BE SOLVED: To provide a door for a high-frequency heating device and the high-frequency heating device having the door, easily manufacturable, improved in a degree of freedom and visibility in designing and manufacturing, and preventing leakage of electromagnetic wave by making a multi-opening metallic plate independently from a door frame. SOLUTION: This door for the high-frequency heating device comprises the door frame 3 having a choke portion 6 covered by a choke cover 12 at its peripheral portion, and provided with an opening portion 5 at its center, a door cover 8 having an opening portion 9 at its center and storing the door frame 3, outer glass 10 and inner glass 7 mounted in a state of covering an outer side of the door frame 3 and the opening portion 5, and the multi-opening metallic plate 15 having a number of opening portions, and bonded in a state of covering the opening portion 5 of the door frame 3, and the multi-opening metallic plate 15 is bonded to the door frame 3 at pitches of less than 1/4 of wavelength of used high frequency over its entire circumference. COPYRIGHT: (C)2007,JPO&INPIT
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