Thermally insulating planar component with low structural thickness, in particular for lining the functional spaces of a motor vehicle

Abstract

A thermally insulating planar component that extends in an extension plane and has a structural thickness orthogonal to the extension plane, the dimensions of the component in the extension plane being many times greater than its thickness measurement orthogonal to the extension plane, the component comprising a vacuum panel having an air-tight, evacuated metal foil envelope that is filled with highly dispersed ceramic powder, the metal foil envelope having two planar envelope walls arranged spaced from one another in the thickness direction and connected to one another by an edge region that spans the distance between the planar envelope walls in the thickness direction, each planar envelope wall having an inner surface that faces the other planar envelope wall and the highly dispersed ceramic powder and an outer surface that faces away from the other planar envelope wall and the highly dispersed ceramic powder is refined such that at least one of the planar envelope walls is designed in at least one deformation section as having a surface structure that increases the surface area of the planar envelope wall over that of a smooth surface structure, the component being curved about at least one curvature axis in the area of the deformation section such that the planar envelope wall is convex on its outer surface in the deformation section.