Patent ID: 9534793
Date: 2017-01-03
CPC Classifications: A47J,F24C,H05B

Claim:
1. A household appliance apparatus, comprising a layered structure including: at least one member selected from the group consisting of a thermochromic element and a thermoluminescent element, said member having at least one material containing vanadium, wherein the member has a first main face and at least a second main face, each of the first and second main faces at least predominantly resting against at least one further element in at least one operating state; and a structural element having a face which is a main cookware support surface of a cooktop for positioning a number of cookware elements, wherein the at least one further element includes a glass ceramic plate that is disposed beneath the main cookware support surface and that extends under an overall area of the main cookware support surface when viewed from above, and wherein the member is disposed beneath the glass ceramic plate and the at least one material containing vanadium extends under at least fifty percent of the overall area of the main cookware support surface when viewed from above to thereby render at least part of a hot region outline visible over at least a significant part of the main cookware support surface and to shield electronic components, which are disposed under the layered structure, from heat radiation from the hot region.