Abstract: Disclosed is an electronic range including a cavity, in which cooking of food is to be conducted, a heater chamber arranged over the cavity, an axial-flow fan arranged in the heater chamber and adapted to generate a downward flow of air, and a heater arranged outside the axial-flow fan and adapted to generate heat of a high temperature. A convection plate is arranged between the axial-flow fan and the heater. The convection plate serves to control a flow of air circulating in the interior of the electronic range to effectively convect the heat generated from the heater into the cavity during an operation of the axial-flow fan causing a repeated procedure of downwardly introducing the downward flow of air into the cavity, and then upwardly moving the flow of air along a side wall of the cavity. In this electronic range, food disposed in the cavity is heated, using reflection heat generated by the convection plates and convection air generated by the axial-flow fan.

Abstract: The present invention relates to a convection device of a microwave oven comprises a heater chamber formed on the out-side surface of a cooking chamber, a fan housing installed inside of the heater chamber so as to be rotational within a predetermined rotation range including an inlet hole where the air inside of the heater chamber flows into and a discharging hole for providing the air into the cooking chamber, and a fan installed inner side of the fan housing for generating air flow provided into the cooking chamber through the discharging hole. Accordingly, the present invention can provide the heated-air uniformly to the each portion inside of the cooking chamber.

Abstract: An improved heating time control apparatus and a method for a microwave oven capable of detecting food temperature using an infrared ray coming from food being heated, whereby better heating time control can be possible, which includes a key input circuit for inputting a cooking menu and a food kinds; an infrared sensor circuit for detecting a surface temperature of food in accordance with the amount of infrared rays coming from food being cooked and for converting the detected temperature into a predetermined electric signal; a microprocessor for outputting a first heating time previously set in accordance with a selected menu and a second heating time previously set in accordance with a food kinds and for monitoring an output signal outputted from the infrared sensor and for outputting a result obtained by multiplying an output signal difference between points of a first heating time completion and a second heating time completion by a predetermined coefficient as a third heating time; and an output control

Abstract: An automatic thawing device of a microwave oven and a method for control thereof. A turntable is rotatably placed in a cooking chamber. A gas sensor is placed about an exhaust port of the oven and senses amount of gas or vapor exhausted from the cooking chamber through the exhaust port during a thawing operation, and outputs a gas amount signal to a microprocessor. The microprocessor calculates a thawing time by operation of the output signal of the gas sensor an outputting a thawing control signal for driving the microwave oven. An output drive unit controls output level of electromagnetic wave of high frequency of a magnetron in accordance with the thawing control signal of the microprocessor. The magnetron generates the electromagnetic wave of high frequency in accordance with output signal of the drive unit for the thawing time. A power source supplies an electric power to the thawing device in accordance with the thawing control signal of the microprocessor.