| 摘要 |
PROBLEM TO BE SOLVED: To realize a magnetic oscillation stopping device of a high frequency heating device. SOLUTION: Two magnets 5 are mounted on a door 1, magnetic sensors 6 of the polarity sensitive to positions corresponding to the magnets are mounted at a main body 3 side, a short circuit switching means 15 is connected to a rear part of a main oscillation stop switching means 14 connected to an AC power source through a fuse 7, the distances of two sets of the magnets 5 and the magnetic sensors 6 are different from each other, the AND output of two magnetic sensors 6 are connected to the oscillation stop switching means 14, and the OR output of the same is connected to the short circuit switching means 15, whereby a state that both of a contact of the oscillation stop switching means 14 and a contact of the short circuit switching means 15 are simultaneously opened appears in the middle of the opening and closing of the door 1, the cut of a fuse is prevented, and the high frequency heating device having the magnetic oscillation stopping switch which is hardly realized by a conventional technology, can be realized. COPYRIGHT: (C)2004,JPO
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