Abstract: An induction heating cooker includes a plurality of heating coils to heat a container, an inverter having a plurality of switching elements to be operated such that a high-frequency voltage is selectively supplied to the plurality of heating coils, and a control unit to control the operations of the plurality of switching elements such that the high-frequency voltage is time-divisionally supplied to a heating coil, on which the container is positioned, among the plurality of heating coils. By this configuration, it is possible to reduce the number of inverters and manufacturing costs. In addition, since the thickness of the cooker is reduced, it is possible to reduce the overall size of the cooker.

Abstract: An induction heating cooker including a temperature sensor disposed between a plurality of working coils which are uniformly disposed below a cooking table and a heat transfer member to transfer heat from the working coils adjacent to the temperature sensor to the temperature sensor, thereby improving productivity and space utilization.

Abstract: A tray for a microwave oven and a microwave oven having the same is disclosed. Heat generators are formed on the surface of a tray unit of the tray for a microwave oven through transfer coating carried out at a high temperature, and thus the tray for a microwave oven may be heated to a high temperature, thereby being capable of effectively forming a grill mark on food to be cooked.

Abstract: An induction heating cooker and a control method thereof that prevents the occurrence of an error caused during recognition of a container in the induction heating cooker that performs cooking regardless of where the container is placed on a cooking plate includes a plurality of heating coils disposed below a cooking plate, current detectors to detect values of current flowing in the respective heating coils, and a controller to determine whether a container is placed on the respective heating coils based on the detected current values of the heating coils and change amounts of the current values.

Abstract: An induction heating cooker including a cooking plate on which a cooking vessel is placed, a plurality of heating coils disposed while being adjacent to one other below the cooking plate, and a Printed Circuit Board (PCB) on which circuits configured to drive the heating coils are placed, wherein the PCB is divided into a high frequency circuit part on which circuits characterized by high frequency are placed and a low frequency circuit part on which circuits characterized by low frequency are placed, and the high frequency circuit part is spaced apart from the low frequency circuit part by a predetermined distance. The interference between the high frequency circuit part and the low frequency circuit part is minimized while enhancing the operation efficiency of each heating coil. The assembly efficiency and the working efficiency are enhanced when an inverter circuit is wired to a corresponding heating coil.

Abstract: An induction heating cooker and a control method thereof that stably adjust power of a cooking coil when a plurality of containers having different cooking conditions is placed on the cooking coil includes a plurality of heating coils disposed below a cooking plate and a controller to determine whether a container is placed on the heating coils, wherein the controller determines whether a plurality of containers is placed on one of the heating coils and, when the containers are placed on one of the heating coils, adjusts a power of the heating coil on which the containers are placed based on powers of other heating coils occupied by the containers. Cooking using a plurality of containers is stably performed based on user intention even when cooking conditions of the containers placed on a heating coil differ.

Abstract: An induction heating cooker includes a plurality of heating coil blocks including one or more heating coils, a plurality of inverters to supply a high-frequency voltage to each of the heating coils, and a controller to control operations of the plurality of inverters to alternately supply the high-frequency voltage to each heating coil block and detect a heating coil, on which a container is placed, from among the heating coils belonging to each of the plurality of heating coil blocks. Using this configuration, it is possible to reduce the influence of magnetic field interference between adjacent heating coils when detecting the position of the container and to increase container position detection accuracy.

Abstract: An induction heating cooker includes a plurality of heating coils to heat a container, an inverter having a plurality of switching elements to be operated such that a high-frequency voltage is selectively supplied to the plurality of heating coils, and a control unit to control the operations of the plurality of switching elements such that the high-frequency voltage is time-divisionally supplied to a heating coil, on which the container is positioned, among the plurality of heating coils. By this configuration, it is possible to reduce the number of inverters and manufacturing costs. In addition, since the thickness of the cooker is reduced, it is possible to reduce the overall size of the cooker.

Abstract: An induction heating cooker includes a plurality of heating coils to heat a container, an inverter having a plurality of switching elements to be operated such that a high-frequency voltage is selectively supplied to the plurality of heating coils, and a control unit to control the operations of the plurality of switching elements such that the high-frequency voltage is time-divisionally supplied to a heating coil, on which the container is positioned, among the plurality of heating coils. By this configuration, it is possible to reduce the number of inverters and manufacturing costs. In addition, since the thickness of the cooker is reduced, it is possible to reduce the overall size of the cooker.

Abstract: An oven having enhanced cooling efficiency. The oven includes a cooking chamber, a door to open or close a front side of the cooking chamber, a cooling fan located above the cooking chamber to suction and blow outside air, a discharge duct to discharge the air, blown by the cooling fan, forward of the door, a plurality of flow-paths defined in the door to allow outside air to be introduced into and moved in the flow-path in association with discharge of the air through the discharge duct, and a suction pipe to connect at least one of the flow-paths and the cooling fan to each other. Suction force of the cooling fan is applied to the flow-paths of the door through the suction pipe as well as the interior of an electric machine room, allowing the air in the flow-path to be discharged to the outside through the suction pipe and the discharge duct. This assures more active air movement in the door and maximizes the cooling effect of the door.

Abstract: A cooking apparatus equipped with a heating device enabling uniform distribution of heat. The cooking apparatus includes a plate to put a cooker thereon, a heater disposed under the plate, and a guide member disposed between the plate and the heater to induce energy emitted from the heater toward the plate.

Abstract: A tray for a microwave oven and a microwave oven having the same is disclosed. Heat generators are formed on the surface of a tray unit of the tray for a microwave oven through transfer coating carried out at a high temperature, and thus the tray for a microwave oven may be heated to a high temperature, thereby being capable of effectively forming a grill mark on food to be cooked.

Abstract: An induction heating cooker and a control method thereof that stably adjust power of a cooking coil when a plurality of containers having different cooking conditions is placed on the cooking coil includes a plurality of heating coils disposed below a cooking plate and a controller to determine whether a container is placed on the heating coils, wherein the controller determines whether a plurality of containers is placed on one of the heating coils and, when the containers are placed on one of the heating coils, adjusts a power of the heating coil on which the containers are placed based on powers of other heating coils occupied by the containers. Cooking using a plurality of containers is stably performed based on user intention even when cooking conditions of the containers placed on a heating coil differ.

Abstract: An induction heating cooker and a control method thereof that prevents the occurrence of an error caused during recognition of a container in the induction heating cooker that performs cooking regardless of where the container is placed on a cooking plate includes a plurality of heating coils disposed below a cooking plate, current detectors to detect values of current flowing in the respective heating coils, and a controller to determine whether a container is placed on the respective heating coils based on the detected current values of the heating coils and change amounts of the current values.

Abstract: An induction heating cooker including a cooking plate on which a cooking vessel is placed, a plurality of heating coils disposed while being adjacent to one other below the cooking plate, and a Printed Circuit Board (PCB) on which circuits configured to drive the heating coils are placed, wherein the PCB is divided into a high frequency circuit part on which circuits characterized by high frequency are placed and a low frequency circuit part on which circuits characterized by low frequency are placed, and the high frequency circuit part is spaced apart from the low frequency circuit part by a predetermined distance. The interference between the high frequency circuit part and the low frequency circuit part is minimized while enhancing the operation efficiency of each heating coil. The assembly efficiency and the working efficiency are enhanced when an inverter circuit is wired to a corresponding heating coil.

Abstract: Disclosed herein is a control method of an induction heating cooker including detecting at least one heating coil occupied by a first container from among a plurality of heating coils, switching a plurality of inverter units so that a power level input by a user is applied to the detected at least one heating coil, determining, if the at least one heating coil occupied by the first container includes plural heating coils, whether or not output currents within a target output current range corresponding to the power level are present from among the output currents of the respective heating coils sensed by sensing units, and equally adjusting duty ratios of pulse width modulation signals applied to the inverter units of the respective heating coils until at least one of the output currents reaches the target output current range, if no output current within the target output current range is present.

Abstract: Disclosed herein is a cooking apparatus that is capable of partially heating a cooking chamber depending upon an amount of food to be cooked through a relatively simple mechanical structure without using an additional control unit. The cooking apparatus includes a cooking chamber, a hot air supply unit to supply hot air into the cooking chamber, and a divider to divide the cooking chamber. The hot air supply unit includes a heater, a blowing fan to supply air heated by the heater into the cooking chamber, a fan cover having inlet holes and outlet holes, an opening and closing cover to partially open and close the inlet holes and the outlet holes of the fan cover, and interlocking units operating together with the attachment and detachment of the divider to move the opening and closing cover.

Abstract: A cooking apparatus and a method selectably cook food using one or more of a plurality of cooking spaces formed by a divider while using a same heat source and control different temperatures of the cooking spaces formed by the divider. An embodiment of the cooking apparatus includes a cooking chamber, a divider to divide the cooking chamber into cooking spaces, a heated air supply unit including a fan cover having upper and lower ventilation holes, a detection unit including temperature sensors to detect the interior temperatures of the cooking spaces, an airflow adjusting unit to adjust an amount of heated air supplied, and a control unit to control the amount of heated air, based on an interior temperature of the cooking space, to adjust a temperature to a target temperature set by a user.

Abstract: A connection terminal of a litz wire, a mounting method thereof, and a manufacturing method of a cooking appliance with a working coil consisting of the litz wire. The mounting method includes preparing the litz wire including plural wires, each of which includes a sheath, installing one end of the litz wire at the connection terminal, removing the sheaths from the plural wires by heating the litz wire, and deforming the connection terminal through a pinch-off process, thereby connecting front ends of the wires through the connection terminal and removing the sheaths or sheath residues between cores of the wires, and thus reducing resistance of the litz wire.

Abstract: An induction heating cooker includes a plurality of heating coil blocks including one or more heating coils, a plurality of inverters to supply a high-frequency voltage to each of the heating coils, and a controller to control operations of the plurality of inverters to alternately supply the high-frequency voltage to each heating coil block and detect a heating coil, on which a container is placed, from among the heating coils belonging to each of the plurality of heating coil blocks. Using this configuration, it is possible to reduce the influence of magnetic field interference between adjacent heating coils when detecting the position of the container and to increase container position detection accuracy.