Convection microwave oven having improved hot air circulation

Electric heating – Microwave heating – With diverse-type heating

Patent

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Details

219757, 219400, 126 21A, H05B 664, F27D 704, A21B 126

Patent

active

057569746

ABSTRACT:
A convection microwave oven has a high frequency generator for microwave cooking, and an electric heater for convection cooking. The heater is disposed within a cooking chamber at an upper portion thereof. A channel is disposed outside of the cooking chamber and communicates with the cooking chamber through an air inlet and an air outlet formed in vertically spaced relationship in a rear wall of the cooking chamber. A fan is situated within the channel adjacent the air inlet for drawing air from the cooking chamber via the air inlet, and discharging the air back into the cooking chamber via the air outlet. The air outlet is positioned to direct the discharged air toward the electric heater. The cross-sectional area of the channel can become either larger or smaller from the air inlet to the air outlet.

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