Abstract: A microwave oven having a high voltage control circuit which prevents an overheating of a high voltage transformer. The high voltage control circuit includes a thermostat which is turned on or off according to a temperature of the high voltage transformer. The thermostat is disposed between a first fixed terminal of a tap formed at a primary coil of the high voltage transformer and a second fixed terminal connected to a power stage, so as to allow the primary coil to have different numbers of turns. According, where the output of a magnetron of the microwave oven becomes high and the temperature of the high voltage transformer reaches a predetermined temperature, the thermostat is turned off, thus enabling the first and second fixed terminals to be disconnected from each other.

Abstract: A microwave oven having a high voltage control circuit which prevents an overheating of a high voltage transformer. The high voltage control circuit includes a thermostat which is turned on or off according to a temperature of the high voltage transformer. The thermostat is disposed between a first fixed terminal of a tap formed at a primary coil of the high voltage transformer and a second fixed terminal connected to a power stage, so as to allow the primary coil to have different numbers of turns. According, where the output of a magnetron of the microwave oven becomes high and the temperature of the high voltage transformer reaches a predetermined temperature, the thermostat is turned off, thus enabling the first and second fixed terminals to be disconnected from each other.

Abstract: A wall-mounted type microwave oven which carries out a sweeping operation of kitchen areas positioned therebelow, as well as cooking and exhaustion operations. The microwave oven includes an oven body for mounting in a kitchen area, having a cooking chamber and an electrical component compartment which are isolated from each other, an exhaust flow path which communicates between an intake port provided at a bottom panel of the oven body and an exhaust outlet provided at a top panel of the oven body to exhaust air existing under the oven body to the outside, an exhaust fan assembly provided at the exhaust outlet, a sweeping inlet provided at the bottom panel of the oven body, a sweeping flow path which is disposed in the oven body and communicates with an inlet of the exhaust fan assembly and the sweeping inlet, a filter assembly disposed in the sweeping flow path, and a sweeping hose detachably coupled to the sweeping inlet.

Abstract: A microwave oven capable of selectively adjusting capacity of a cooking chamber of a microwave oven, including a case; a body formed by front and rear panels which are arranged in front/back of the case, the body having a cooking chamber having a first cavity concaved from an upper side of the cooking chamber and a second cavity; and an adjustable section for selectively adjusting the capacity of the cooking chamber by selectively blocking the first and second cavities by being selectively coupled in the body.

Abstract: A high voltage transformer having radiation ribs has a laminated core formed of a plurality of accumulated iron plates, first and second windings wound in the laminated core for converting an input voltage to a predetermined output voltage, and a plurality of radiation ribs formed in the accumulated direction of the plurality of iron plates on the outer periphery of the laminated core. The plurality of radiation ribs are formed as the plurality of iron plates are accumulated, by the accumulation of a plurality of protrusion portions formed along each of the plurality of iron plates. Since the radiation ribs are formed on the outer periphery and in the accumulated direction of the laminated core, all the iron plates constituting the laminated core have the same shape and are disposed in the same direction.