Abstract: The present invention comprises a grill unit which is heated by induction current. The grill unit comprises a grill which is heated by induction current, and a supporting unit is placed below the grill to store foreign matter falling from the grill. In addition, the grill unit is fixed to a heater main body by being coupled. The supporting unit comprises a coupling unit which is formed to be coupled with the heater main body. Additionally, the heater main body comprises a seat portion at one side, which is coupled to the coupling unit.

Abstract: Provided are a cooking appliance and a control method thereof. A cooking appliance according to an embodiment of the present invention comprises a top plate on which a cooking container is placed, a plurality of winding parts including a plurality of coils horizontally arranged under the top plate, a plurality of relay parts including a plurality of relays that each connected to the plurality of coils, and an inverter part for applying a voltage of high frequency to the plurality of winding parts.

Abstract: Disclosed is a method for controlling a voltage of a DC link for an electric vehicle, which can reduce a capacitance of the DC link interposed between an inverter and a DC/DC converter. The method for controlling the voltage of the DC link in a power system of a vehicle including a battery, a DC/DC converter, the DC link, an inverter, a motor, and a control part controlling the DC/DC converter and the inverter includes the steps of installing a compensator in a control loop of the control part such that a DC link current of the DC/DC converter follows a DC link current of the inverter, calculating a predetermined compensation term based on information of the motor inputted into the compensator, and applying the compensation term to a voltage node in the control loop of the control part in the compensator.

Abstract: An induction heater may comprise a base, a plurality of first solids of ferromagnetic or ferrimagnetic material and a first coil having a plurality of wire windings. The solids have a prescribed shape and are provided to have a prescribed arrangement on the base, and the first coil has a prescribed shape, and the first coil is provided over at least portions of the plurality of solids. A second coil may be provided within the first coil and spaced apart from the first coil. The second coil cross over at least portions of the plurality of first solids. A plurality of second solids of ferromagnetic or ferrimagnetic material may be formed parallel to each other, and contact at least one of the first solids. The induction heater may also include a plurality of third solids of ferromagnetic or ferrimagnetic material, a third coil having a plurality of wire windings and a fourth coil.

Abstract: An electric cooker having a composite heat source includes an external case having an air inlet and an air outlet, a cooking plate mounted on an upper surface of the external case to be a top plate thereof, a heat generating unit mounted between the external case and the cooking plate, the heat generating unit including a work coil and an electric heater and arranged coaxially with the air inlet with respect to a center of the air inlet, a cooling unit coaxially arranged with respect to the center of the air inlet between the air inlet and the heat generating unit, the cooling unit cooling the heat generating unit, an air duct provided below the heat generating unit, and a reflector forming an outer cover of the electric heater.

Abstract: A heater unit comprises: a hot wire heating unit; an induction heating unit provided adjacent to the hot wire heating unit and operated by induction heating; and connectors each for connecting the hot wire heating unit to the induction heating unit. A cooker comprises: a casing; a heating plate provided on an upper surface of the casing; a hot wire heating unit provided on a bottom surface of the heating plate for generating heat according to application of an electric power; an induction heating unit provided on the bottom surface of the heating plate for being adjacent to the hot wire heating unit and operated by induction heating; connectors each for connecting the hot wire heating unit to the induction heating unit; and support members each provided on the bottom surface of the hot wire heating unit and for supporting the hot wire heating unit.

Abstract: A heater unit is provided, the heater unit equipped with an induction heating coil and an electric heater selectively operated based on kind and state of a load of a cooking vessel placed on the heater unit. The kind is determined by an input current inputted when a load-type determination unit causes the induction heating coil to be operated and a resonance current flowing into the induction heating coil. The state is determined by a temperature change of the heater unit when a load-state determination unit allows the electric heater to generate heat, and the induction heating coil and the electric heater are selectively operated based on the determined kind and state of the load. Accordingly, a user needs not to scrupulously determine the kind of the cooking vessel and the electric cooker is not operated under a no-load state to prevent occurrence of safety accidents.

Abstract: An electric cooker having a composite heat source comprising: an external case having an air inlet and an air outlet; a cooking plate on an upper surface of the external case to be a top plate; a heat generating unit including a work coil and/or an electric heater, mounted between the external case and the cooking plate for coaxial arrangement with the air inlet; and a heat radiation unit including a fan motor and air ducts, coaxially arranged between the air inlet and the heat generating unit, such that sufficient cooling effect can be achieved even with a small-sized blow fan of a small capacity. The manufacturing cost can be reduced, and an effective utilization of space for parts arrangement can be enhanced using the relatively small capacity of blowing fan, enabling to manufacture an electric cooker in a thin, light, simple and compact manner.

Abstract: A heater unit comprises: a hot wire heating unit; an induction heating unit provided adjacent to the hot wire heating unit and operated by induction heating; and connectors each for connecting the hot wire heating unit to the induction heating unit. A cooker comprises: a casing; a heating plate provided on an upper surface of the casing; a hot wire heating unit provided on a bottom surface of the heating plate for generating heat according to application of an electric power; an induction heating unit provided on the bottom surface of the heating plate for being adjacent to the hot wire heating unit and operated by induction heating; connectors each for connecting the hot wire heating unit to the induction heating unit; and support members each provided on the bottom surface of the hot wire heating unit and for supporting the hot wire heating unit.