| 摘要 |
PURPOSE: A device for setting metal tray of a microwave oven is provided to easily set the tray at a predetermined position although using a metal tray. CONSTITUTION: A tray setting device of a microwave oven includes a tray(50) having plural rollers(54); a heating chamber bottom surface(70) forming a recessed circular forming part(72) to have a heater(76) built-in; and a circular-type rib(80) protruded from the outside adjacent to the forming part of the heat chamber bottom surface. At least two rollers externally engage with the circular-type rib. The rollers are arranged at regular intervals.
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