Patent attributes
A microwave oven is provided with an integrated operating unit having an integrated function for power supply, power level control, and inrush current suppression. The integrated operating unit includes a rotary dial, a shaft fixed, at one end thereof, to the rotary dial, a cam mounted about a concentric axis of the shaft to be rotated along with the shaft, and an iron core extending, at one end thereof, from the other end of the shaft away from the shaft beyond the cam. A relay coil is wound around the iron core. The integrated operating unit further includes a power switch attached to a support member extending from the other end of the iron core away from the iron core, an inrush switch for suppressing inrush current, and a power control switch for controlling the power supply time in accordance with a set power level.
