Patent ID: 7109454
Filing Date: 2006-09-19
Classification: H05B

Abstract:
1. A microwave oven comprising: an AC power source; a high-voltage transformer; and an integrated operating unit electrically connected between the AC power source and the high-voltage transformer, the integrated operating unit comprising a first switch member adapted to supply power from the AC power source in accordance with a user's operation, a second switch member adapted to control a power level of the microwave oven in accordance with a user's operation, and a third switch member for suppressing inrush current in accordance with a user's operation, wherein the integrated operating unit further comprises a rotary dial and a shaft fixed to the rotary dial, so that the first, second and third switch members are disposed along the shaft so as to perform their switching operations in accordance with the rotation of the rotary dial and the shaft, wherein the rotary dial is a control knob having an integrated function for power supply, power level control, and inrush current suppression in accordance with a user's operation.