Under-induction range system

An under-induction range system comprising:

• a top plate unit having a top surface on which a matching area and an operating area are respectively indicated, the matching area having a circular shape and the operating area being concentric with the matching area, the operating area having a greater radius than a radius of the matching area;
• an induction unit fixedly disposed at a lower side of the top plate unit and configured to heat a heating target container positioned in a space above the top plate unit using a magnetic field generated by a circular coil;
• a Hall sensor unit disposed in a central portion of the circular coil disposed in an inner space of the induction unit;
• a control unit electrically connected to the Hall sensor unit;
• and
• a multi-support unit which controls operation of the induction unit according to a measurement value detected by the Hall sensor unit when a magnetic member buried therein is positioned at the matching area or the operating area and on which the heating target container is seated,
• wherein the multi-support unit is movable and placeable at different positions on the top surface of the top plate unit,
• wherein the multi-support unit is configured to form circular marks on top and bottom surfaces of the multi-support unit to indicate a buried position of the magnetic member,
• wherein, when the multi-support unit is disposed on the top plate unit such that the circular marks accurately match the matching area, any one of a i) thickness of the top plate unit, ii) a distance between the Hall sensor unit and the magnetic member, and iii) a distance between the Hall sensor unit and the heating target container is calculated using the measurement value detected by the Hall sensor unit, and when the measurement value is out of a preset range, the control unit blocks power being supplied to the circular coil.