An electric resistance heating coil assembly, as provided herein, may include a spiral would sheathed heating element, a thermostat, and a shroud cover. The spiral wound sheathed heating element may have a first coil section and a second coil section. The thermostat may be connected in series between the first and second coil sections of the spiral wound sheathed heating element. The thermostat may include a base and a top cap. The base may extend axially between a first end and a second end. The top cap may be held on the base at the first end. The shroud cover may be mounted to the thermostat below the top cap.

An electric resistance heating coil assembly, as provided herein, may include a spiral would sheathed heating element, a thermostat, and a shroud cover. The spiral wound sheathed heating element may have a first coil section and a second coil section. The thermostat may be connected in series between the first and second coil sections of the spiral wound sheathed heating element. The thermostat may include a base and a top cap. The base may extend axially between a first end and a second end. The top cap may be held on the base at the first end. The shroud cover may be mounted to the thermostat below the top cap.

A cooktop appliance and heating element, as provided herein may define a heating zone having a thermostat positioned therein. The thermostat may include a base, a bimetallic disk, and a conductive spring. The base may extend axially between a first end and a second end. The bimetallic disk may be disposed within the base. The conductive spring may be disposed within the base in biased engagement with the bimetallic disk to motivate the bimetallic disk towards the first end within the base. The conductive spring may include a first layer and a second layer. The first layer may extend from a contact end proximal to the bimetallic disk to a joinder end connected to the first terminal. The second layer may extend from a biasing end proximal to the bimetallic disk to a secured end fixed within the base.

A cooking device according to one example embodiment includes a base having a top surface positioned to contact a cooking vessel configured to hold food during cooking. The base includes a heater having a ceramic substrate and an electrically resistive trace on an exterior surface of the ceramic substrate. The heater is positioned to supply heat generated by applying an electric current to the electrically resistive trace to the top surface of the base for heating the cooking vessel to heat food in the cooking vessel. In some embodiments, the electrically resistive trace includes an electrical resistor material thick film printed on the exterior surface of the ceramic substrate. In some embodiments, the electrically resistive trace is positioned on a top surface of the ceramic substrate that faces upward toward the top surface of the base.

An induction heating device includes a first resonance circuit comprising a first working coil and a first resonance capacitor, a first inverter electrically connected to the first resonance circuit and configured to perform a first switching operation to thereby apply a first resonance current to the first working coil, a first group of snubber capacitors that are configured to be electrically connected to the first inverter, the first group of snubber capacitors comprising a first snubber capacitor and a second snubber capacitor, and a first relay configured to selectively connect the first group of snubber capacitors to the first inverter.

An electric resistance heating coil assembly includes a spiral wound sheathed heating element having a first coil section and a second coil section. A bimetallic thermostat is connected in series between the first and second coil sections of the spiral wound sheathed heating element. The bimetallic thermostat is spring loaded such that a distal end of the bimetallic thermostat is urged away from a top surface of the spiral wound sheathed heating element. A heat transfer disk is positioned on the bimetallic thermostat at the distal end of the bimetallic thermostat.

A cooktop appliance or electric resistance heating coil assembly, as provided herein, may include a shroud cover, a thermostat, and a heat transfer disk. The shroud cover may define an axial hole. The thermostat may be positioned radially inward from the shroud cover. A continuous circumferential thermal break may be defined as a radial gap within the axial hole between the thermostat and the shroud cover. The heat transfer disk may be attached to the thermostat at the distal end of the thermostat and extend radially outward above the shroud cover.

A cooktop appliance or electric resistance heating coil assembly, as provided herein, may include a shroud cover, a thermostat, and a heat transfer disk. The shroud cover may define an axial hole. The thermostat may be positioned radially inward from the shroud cover. A continuous circumferential thermal break may be defined as a radial gap within the axial hole between the thermostat and the shroud cover. The heat transfer disk may be attached to the thermostat at the distal end of the thermostat and extend radially outward above the shroud cover.

An apparatus is disclosed. The apparatus includes a heater comprising a heating element having a region that does not contain a surface heating portion. The apparatus further includes a thermostat positioned in the region. The thermostat includes a contact surface disposed to make contact with an object placed on the surface heating portion. The thermostat includes a switch configured to prevent a current from conducting through the heating element when the contact surface experiences a temperature equal to or greater than a temperature limit. The apparatus further includes a medallion coupled to the thermostat and positioned below a top surface of the heating element, the medallion comprising an aperture shaped to allow the contact surface to extend through the aperture to make contact with the object. The apparatus includes an urging element configured to provide vertical movement of the medallion in response to a downward force applied from the object.

An apparatus is disclosed. The apparatus includes a heater comprising a heating element having a region that does not contain a surface heating portion. The apparatus further includes a thermostat positioned in the region. The thermostat includes a contact surface disposed to make contact with an object placed on the surface heating portion. The thermostat includes a switch configured to prevent a current from conducting through the heating element when the contact surface experiences a temperature equal to or greater than a temperature limit. The apparatus further includes a medallion coupled to the thermostat and positioned below a top surface of the heating element, the medallion comprising an aperture shaped to allow the contact surface to extend through the aperture to make contact with the object. The apparatus includes an urging element configured to provide vertical movement of the medallion in response to a downward force applied from the object.