Electromagnetic cooking device

摘要

An induction heating cooker includes a top plate adapted to have an object placed thereon, plural heating coils provided below a lower surface of the top plate, an inverter for supplying high-frequency power to the heating coils, a data memory, and a controller controlling the inverter. The data memory stores first and second heating coil patterns. Each of the first and second heating coil patterns defines one or more heatable regions and one or more non-heatable regions. The controller selects a heating coil pattern from the first and second coil patterns. The controller controls the inverter such that high-frequency power can be supplied to one or more first heating coils out of the plural heating coils located in the one or more heatable regions of the selected heating coil pattern. The controller controls the inverter such that high-frequency power cannot be supplied to one or more second heating coils out of the plural heating coils located in the one or more non-heatable regions of the selected heating coil pattern. This induction heating cooker can adjust at least one of the location, the size, and the number of the heatable regions for induction-heating objects in response to at least one of the location, the size, and the number of the objects to be heated, thereby heating the objects efficiently.

主权项

1. An induction heating cooker comprising:
a top plate having an upper surface and a lower surface opposite to the upper surface, the upper surface being adapted to have an object placed thereon; a plurality of heating coils distributed below the lower surface of the top plate for cooperative operation as a group to create any one of a plurality of heating coil patterns for the induction heating cooker; an inverter to selectively supply high-frequency power to the plurality of heating coils in the group to create the any one of the plurality of heating coil patterns; a data memory in which a first heating coil pattern and a second heating coil pattern are stored, the first heating coil pattern defining, by selective energization of all of the heating coils distributed below the lower surface of the top plate, one or more heatable regions and one or more non-heatable regions on the upper surface of the top plate, the second heating coil pattern defining by selective energization of all of the heating coils distributed below the lower surface of the top plate, one or more heatable regions and one or more non-heatable regions on the upper surface of the top plate, the first heating coil pattern being different from the second heating coil pattern based on the selective energization; and a controller operable to select only one heating coil pattern from the first heating coil pattern and the second coil pattern, control the inverter such that high-frequency power is supplied to one or more first heating coils in the group which are identified with the selected heating coil pattern as being in the one or more heatable regions of the selected heating coil pattern, and control the inverter such that high-frequency power cannot be supplied to one or more second heating coils in the group which are identified with the selected heating coil pattern as being in the one or more non-heatable regions of the selected heating coil pattern.