Patent ID: 6104016
Filing Date: 2000-08-15
Classification: H05B

Abstract:
A wall-mounted microwave oven having a main body forming a cavity for accommodating foods to cook, a casing enclosing the main body and forming a hood duct having an inlet located on a bottom area and an outlet located on an upper area, a hood fan installed in the hood duct, and a hood motor driving the hood fan, the wall-mounted microwave oven comprising:a rectifier generating a smoothed-rectified current;a bypass power line connected between said rectifier and an output of said hood motor, preventing said smoothed-rectified current from being supplied to an input of said hood motor;a main power line connected between said rectifier and said input of said hood motor;an inverter part disposed between said rectifier and said main power line to supply said smoothed-rectified current to said input of said hood motor through said main power line during on and off operation; anda microcomputer connected to said inverter part, controlling cycles of on and off operation of said inverter part, thereby controlling the speed of said hood motor in response to an external control signal.