Abstract: The present invention relates to an apparatus and method for controlling output power of a combination hood and microwave oven, and more particularly, to an apparatus and method for controlling power of a combination hood and microwave oven, wherein an output level of a high voltage transformer for generating a high voltage can be adjusted. According to the combination hood and microwave oven of the present invention, the electric power supplied to the high voltage transformer can be increased by temporarily turning off the parts (limited to the components which can be controlled separately from the microwave oven function), such as the vent fan or the electric indicator lamp, having large power consumption. Thus, the output power level thereof can be increased. Therefore, there are advantages in that the quick cooking can be made and cooking performance can be improved due to the high output of the transformer, when the user intends to make the quick cooking with the high output power.

Abstract: Device and method for controlling a heater in a cooker, the device including a plurality of heaters, a relay part for supplying/cutting off a power applied to the heaters, a current detecting part for detecting a current value applied to the heaters, and a controller for controlling the relay part according to the current value detected at the current detecting part and a preset current value, to adjust a preset heater operation time period for the present cooking, thereby improving a quality of cooking by solving a deviation of operation power caused by variation of heaters and/or power by compensating the cooking time period.

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: In a heater system for a microwave oven including an air tunnel having an suction portion and a discharge portion, formed at an upper surface of a cooking chamber, a fan assembly installed inside the air tunnel and having a circulation fan forming air flow by sucking air inside the cooking chamber through the suction portion and discharge the sucked air through the air tunnel and the discharge portion, a first heater chamber having a first heater installed inside the air tunnel and heating air discharged into the discharge portion from the air tunnel, and a second heater chamber having a second heater installed inside the air tunnel and emitting radiation heat into the cooking chamber, wherein the suction portion and the discharge portion are formed near opposite side walls of the cooking chamber.

Abstract: The present invention relates to an apparatus and method for controlling output power of a combination hood and microwave oven, and more particularly, to an apparatus and method for controlling power of a combination hood and microwave oven, wherein an output level of a high voltage transformer for generating a high voltage can be adjusted. According to the combination hood and microwave oven of the present invention, the electric power supplied to the high voltage transformer can be increased by temporarily turning off the parts (limited to the components which can be controlled separately from the microwave oven function), such as the vent fan or the electric indicator lamp, having large power consumption. Thus, the output power level thereof can be increased. Therefore, there are advantages in that the quick cooking can be made and cooking performance can be improved due to the high output of the transformer, when the user intends to make the quick cooking with the high output power.

Abstract: Device and method for controlling a heater in a cooker, the device including a plurality of heaters, a relay part for supplying/cutting off a power applied to the eaters, a current detecting part for detecting a current value applied to the heaters, and a controller for controlling the relay part according to the current value detected at the current detecting pmt and a preset current value, to adjust a preset heater operation time period for the present cooking, thereby improving a quality of cooking by solving a deviation of operation power caused by variation of heaters and/or power by compensating the cooking time period.

Abstract: The present invention relates to a damper apparatus for a microwave oven by which the production cost and the reliability of the operation can be obtained by simplifying the structure of a damper apparatus for controlling the air flow supplied into the cavity of a microwave oven, which comprises an air duct for guiding a cooling air from the machinery compartment of the microwave oven into the cavity; a damper rotatably installed in the air duct for opening or closing the air flow in the air duct; a motor which includes a shaft directly connected to the damper to drive the damper; and a micro switch installed at one side of the air duct for detecting the opening and closing states of the damper by contacting one side of the damper.

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 port 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 port. Accordingly, the present invention can provide the heated-air uniformity to the each portion inside of the cooking chamber.

Abstract: In a heater system for a microwave oven including an air tunnel having an suction portion and a discharge portion, formed at an upper surface of a cooking chamber, a fan assembly installed inside the air tunnel and having a circulation fan forming air flow by sucking air inside the cooking chamber through the suction portion and discharge the sucked air through the air tunnel and the discharge portion, a first heater chamber having a first heater installed inside the air tunnel and heating air discharged into the discharge portion from the air tunnel, and a second heater chamber having a second heater installed inside the air tunnel and emitting radiation heat into the cooking chamber, wherein the suction portion and the discharge portion are respectively formed at each end portions of the upper surface of the cooking chamber, said end portions facing each other and positioned toward the side walls of the cooking chamber.

Abstract: A method for detecting abnormal operation state of parts of a microwave oven including a memory, a plurality of heaters and cooling fans is provided, which includes the steps of extracting cooking data selected by a user from the memory, driving the cooling fan according to the extracted cooking data, determining whether or not to drive the heaters according to whether a driving current of the cooling fan is higher than a first preset current or not and detecting an abnormal state of the cooling fan, and determining whether or not to advance the cooling according to whether a driving current of the heaters is higher than a second preset current as the heaters are driven, and detecting an abnormal state of the heaters, so that the damage of parts or danger of fire of the microwave oven due to the malfunction of the parts may be prevented in advance, and the state of the microwave oven may be recognized in a remote place by using internet instead of visiting of a service member, since the malfunction may be che

Abstract: The present invention relates to a damper apparatus for a microwave oven by which the production cost and the reliability of the operation can be obtained by simplifying the structure of a damper apparatus for controlling the air flow supplied into the cavity of a microwave oven, which comprises an air duct for guiding a cooling air from the machinery compartment of the microwave oven into the cavity; a damper rotatably installed in the air duct for opening or closing the air flow in the air duct; a motor which includes a shaft directly connected to the damper to drive the damper; and a micro switch installed at one side of the air duct for detecting the opening and closing states of the damper by contacting one side of the damper.

Abstract: An improved sensor malfunction prevention apparatus for a microwave oven capable of preventing a malfunction and an infrared ray sensor from being polluted by dusts, food debris or the like from a cooking chamber, which includes a cooling fan; an air duct for guiding cooling air introduced into the interior of the microwave oven in cooperation with the cooling fan; a sensor support bracket disposed at a predetermined inner portion of the air duct; a sensor disposed at a predetermined potion of the sensor support bracket; a protective cover support disposed at the upper portion of the sensor support bracket for defining air openings between the protective cover and the sensor support bracket; and a protective cover fixed to the protective cover support.