Heating cooker system, inductive heating cooker, and electric apparatus

An inductive heating cooker comprising:

• a first coil arranged below a top plate and configured to produce a first high-frequency magnetic field for inductively heating a rectangular-shaped area in a top view first heating element of an electric apparatus positioned on the top plate, the first coil being configured to produce the first high-frequency magnetic field by receiving supply of a first high-frequency current;
• a first inverter circuit configured to supply the first high-frequency current to the first coil;
• a second coil arranged below the top plate and configured to produce a second high-frequency magnetic field for transmitting power to a power receiving coil of an electric apparatus positioned over the top plate, the second coil being configured to produce the second high-frequency magnetic field by receiving supply of a second high-frequency current;
• a second inverter circuit provided independently of the first inverter circuit and configured to supply the second high-frequency current to the second coil;
• and
• a controller configured to perform
• a heating operation of controlling driving of the first inverter circuit to inductively heat the first heating element, and
• a power transmitting operation of controlling driving of the second inverter circuit to transmit electric power to the power receiving coil,
• wherein, in the top view, the first coil has a width equal to each of short sides of the first heating element, and the second coil is positioned to flank two long sides of the first heating element.

An electric apparatus adapted to be positioned on a top plate of an inductive heating cooker, the electric apparatus comprising:

• a heating chamber configured to store a heating target;
• a cooking tray on which the heating target is placed;
• a first heating element formed into a rectangular shape in a top view and positioned on a bottom surface of the heating chamber to be in contact with the cooking tray, wherein the first heating element is configured to be inductively heated by a first high-frequency magnetic field produced by a first coil, which receives supply of a first high-frequency current from a first inverter circuit of the inductive heating cooker;
• a power receiving coil positioned to flank two long sides of the first heating element in a top view and configured to receive electric power through electromagnetic induction or magnetic field resonance from a second high-frequency magnetic field produced by a second coil which receives supply of a second high-frequency current from a second inverter circuit of the inductive heating cooker that is provided independently of the first inverter circuit;
• a second heating element positioned above the cooking tray and configured to generate heat by the electric power received by the power receiving coil;
• a temperature sensor configured to detect a temperature in the heating chamber;
• and
• a transmitting device configured to transmit information of the temperature detected by the temperature sensor to the inductive heating cooker.