Abstract: Proposed is a Fe-based alloy and a filler metal including the same. The Fe-based alloy contains 15% to 25% by weight of nickel (Ni), 0.5% to 3% by weight of manganese (Mn), 2% to 8% by weight of cobalt (Co), 0.1% to 0.5% by weight of carbon (C), and the balance iron (Fe) and unavoidable impurities.

Abstract: Proposed is a Fe-based alloy and a filler metal including the same. The Fe-based alloy contains 15% to 25% by weight of nickel (Ni), 0.5% to 3% by weight of manganese (Mn), 2% to 8% by weight of cobalt (Co), 0.1% to 0.5% by weight of carbon (C), and the balance iron (Fe) and unavoidable impurities.

Abstract: The present invention may provide a motor including a housing, a stator disposed inside the housing, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the rotor includes a rotor core and magnets including a plurality of unit magnets coupled to an outer circumferential surface of the rotor core, the rotor core includes grooves disposed at a boundary between an inner circumferential surface and an upper surface of the rotor core, the shaft includes a first body, a plurality of blades extending outward from an upper surface of the first body, and a protrusion extending downward from a lower surface of the first body, and a side edge of the blade is positioned at a lateral center of the unit magnet when the protrusion is disposed in the groove.

Abstract: An embodiment provides a motor comprising: a stator including a through hole; a cylindrical rotor which is disposed in the through hole; a rotor center shaft which is formed in the central region of the rotor and to which a rotary shaft is coupled; and a first magnet and a second magnet which are disposed between the stator and the rotor, wherein: the rotor includes an outer contour portion and a patterned portion formed between the outer contour portion and the rotor center shaft; the patterned portion includes a plurality of unit patterns and a hollow portion formed in each of the unit patterns; the outer contour portion includes an outer circumferential surface on which the first magnet and the second magnet are disposed and an inner circumferential surface which comes in contact with the plurality of unit patterns; the inner circumferential surface of the outer contour portion further includes a first protrusion portion protruding in a first direction toward the rotor center shaft; and in the first direct

Abstract: The present invention may provide a motor including a housing, a stator disposed inside the housing, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the rotor includes a rotor core and magnets including a plurality of unit magnets coupled to an outer circumferential surface of the rotor core, the rotor core includes grooves disposed at a boundary between an inner circumferential surface and an upper surface of the rotor core, the shaft includes a first body, a plurality of blades extending outward from an upper surface of the first body, and a protrusion extending downward from a lower surface of the first body, and a side edge of the blade is positioned at a lateral center of the unit magnet when the protrusion is disposed in the groove.

Abstract: An embodiment provides a motor comprising: a stator including a through hole; a cylindrical rotor which is disposed in the through hole; a rotor center shaft which is formed in the central region of the rotor and to which a rotary shaft is coupled; and a first magnet and a second magnet which are disposed between the stator and the rotor, wherein: the rotor includes an outer contour portion and a patterned portion formed between the outer contour portion and the rotor center shaft; the patterned portion includes a plurality of unit patterns and a hollow portion formed in each of the unit patterns; the outer contour portion includes an outer circumferential surface on which the first magnet and the second magnet are disposed and an inner circumferential surface which comes in contact with the plurality of unit patterns; the inner circumferential surface of the outer contour portion further includes a first protrusion portion protruding in a first direction toward the rotor center shaft; and in the first direct

Abstract: A soft-magnetic alloy according to an embodiment of the present invention has the composition of the chemical formula below. Febal.SiaAlbXcCrd??[Chemical Formula] where X includes cobalt (Co) and/or Nickel (Ni), a is 0.25-8 wt %, b is 0.25-8 wt %, c is 0.5-10 wt % and d is 3.5-10 wt %.

Abstract: A soft magnetic alloy according to an embodiment of the present invention has a composition of Formula below: FeaXbYcZd ??[Formula] wherein, in the above Formula, X includes at least one of silicon (Si) and phosphorus (P), Y includes carbon (C), Z includes at least one of boron (B), nitrogen (N), aluminum (Al), titanium (Ti), zirconium (Zr), hafnium (Hf), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), cobalt (Co), and nickel (Ni), a ranges from 78 at % to 95.75 at %, b ranges from 2 at % to 16 at %, c ranges from 2 at % to 8 at %, and d ranges from 0.25 at % to 10 at %.

Abstract: A built-in microwave oven is provided, installed in the kitchen furniture as an integral part of the furniture. In the microwave oven, a suction grille and an exhaust grille are provided on the front wall of the external casing, and so cooling air is sucked and discharged through the front wall of the casing. Upper and lower heaters are installed within the casing, with an upper inside air passage formed around the upper heater that guide an air current formed by an upper heater cooling fan, and another air passage is formed around the lower heater that guides an air current formed by a lower heater cooling fan. The inflow air from the suction grille is partially and directly guided to the exhaust grille so as to be mixed with hot air from the upper and lower heaters prior to being discharged from the external casing to the atmosphere through the exhaust grille. Therefore, the exhaust air from the exhaust grille is preferably reduced in its temperature to a proper low point.

Abstract: The object of this invention is to provide a built-in microwave oven, installed in kitchen furniture as an integral part of the furniture. In the microwave oven of this invention, a suction grille (10) and an exhaust grille (20) are provided on the front wall of the external casing, and so cooling air is sucked and discharged through the front wall of the casing. Upper and lower heaters (32a and 32b) are installed within the casing, with an upper inside air passage (18a) formed around the upper heater (32a) for guiding an air current formed by an upper heater cooling fan, and another air passage (18a) is formed around the lower heater (32b) for guiding an air current formed by a lower heater cooling fan. The inflow air from the suction grille (10) is partially and directly guided to the exhaust grille (20) so as to be mixed with hot air from the upper and lower heaters prior to being discharged from the external casing to the atmosphere through the exhaust grille (20).