An electric cooking appliance includes a glass-ceramic substrate having a top surface for supporting cookware for heating thereon, and a bottom surface opposite the top surface. The electric cooking appliance includes a plurality of thermoresistive heating elements disposed and spaced apart on the bottom surface of the glass-ceramic substrate, with each of the plurality of thermoresistive heating elements including graphene nanoparticles embedded in a ceramic matrix for generating heat upon application of electric current to the respective thermoresistive heating element. Each thermoresistive heating element is electrically connected to a power supply such that one or more of the plurality of thermoresistive heating elements are selectively activated to receive electric current to heat localized areas of the glass-ceramic substrate.

A heating apparatus includes a body, a chamber, and a thermal plate. The chamber is defined by the body. The chamber includes an upper region and a lower region. The thermal plate provides heat to the chamber. The thermal plate includes a coating. The coating includes a thermo-resistive layer. The thermo-resistive layer includes a polymeric portion and a nanostructure portion. The thermal plate is positioned in at least one location chosen from the upper region and the lower region of the chamber.

An electric heater includes a substrate and an inner plane heating element formed on one surface of the substrate. The inner plane heating element includes an inner pattern portion connecting a start point with an end point. The inner pattern portion includes a first track, a second track located outside the first track and spaced part from the first track, a first bridge connecting the first track with one end of the second track, a third track located outside the second track and spaced apart from the second track, and a second bridge connecting the other end of the second track with the third track. A first gap G1 between the first and second tracks is shorter than a second gap G2 between the second and third tracks along a virtual line crossing the first, second and third tracks and closer to the first bridge than the second bridge.

The invention relates to a combination of an electrical heating element and a heat dissipater to be heated thereby; the heating element comprises a substrate, an insulating layer located on the substrate and a thick film conductor located on the insulating layer, wherein the second side of the metallic substrate is in contact with the heat dissipater, comprising a layer of metallic material on its face towards the heater and wherein the substrate is brazed to the heat dissipater and the surface of the heating element over which the thick film conductor extends, is substantially equal to the surface of the heat dissipater. The brazing leads to a permanent contact between the heating element and the heat dissipater, so that the possible tendency for warping as caused by the heating and cooling cycles will be withstood.

A microwave wire mesh oven including: a microwave oven cavity; a wire mesh element positioned to radiate black body radiation into the microwave oven cavity; and a magnetron configured to generate microwaves, wherein some of the generated microwaves impinge on the wire mesh element.

A microwave wire mesh oven including: a microwave oven cavity; a wire mesh element positioned to radiate black body radiation into the microwave oven cavity; and a magnetron configured to generate microwaves, wherein some of the generated microwaves impinge on the wire mesh element.

A cooking apparatus includes a main body; a cooking chamber defined in the main body; a removable divider designed to be placed in the cooking chamber to partition the cooking chamber; a drawer, which has a storage space therein, to be slidably extracted and retracted; a drawer receiving space defined beneath the cooking chamber to receive the drawer; a divider storage space arranged between the cooking chamber and the drawer receiving space to store the divider removed from the cooking chamber; and an insulation member provided between the cooking chamber and the divider storage space. The divider storage space is accessible while the drawer is open.

A cooking apparatus includes a main body; a cooking chamber defined in the main body; a removable divider designed to be placed in the cooking chamber to partition the cooking chamber; a drawer, which has a storage space therein, to be slidably extracted and retracted; a drawer receiving space defined beneath the cooking chamber to receive the drawer; a divider storage space arranged between the cooking chamber and the drawer receiving space to store the divider removed from the cooking chamber; and an insulation member provided between the cooking chamber and the divider storage space. The divider storage space is accessible while the drawer is open.

An electric heater includes a substrate; and a plane heating element disposed on one surface of the substrate. The plane heating element includes a pattern portion including a start point and an end point, which are located at an outermost side of the pattern portion, the pattern portion including a plurality of tracks having an arc shape, which are spaced apart from each other and are formed to have a length increasing from an innermost side to the outermost side of the pattern portion, and a plurality of bridges connecting the plurality of tracks in series. The plurality of bridges are formed on both sides of the pattern portion with respect to a reference line passing through a center of the pattern portion, and an innermost gap between the pair of bridges located at the innermost side of the pattern portion is narrower than an outermost gap between a pair of bridges located at the outermost side of the pattern portion.

An electric heater includes a substrate; and a first plane heating element disposed on one surface of the substrate, in which the first plane heating element includes a first track; a second track spaced apart from the first track; and a third track spaced apart from the second track. At least a portion of the second track is located between the first track and the third track, and the first track and the second track are connected by a first bridge, where the first bridge includes a first outer protrusion protruding toward the third track. The third track is formed with a curved portion which protrudes in an outward direction, and the first outer protrusion faces an inside of the curved portion in the outward direction and is spaced apart from the curved portion.