Core element for sandwich elements, use of such a core element, and method for producing such a core element

A sandwich construction element for interior walls, cabin walls, outer walls, bulkhead walls, automotive bodies, fire protection elements, fire protection walls, acoustic panels, thermal insulation panels, sun collector panels, panel heaters, panel coolers or construction panels with line guides, wherein

• the sandwich construction element has at least two hemisphere panels combined with each other,
• each hemisphere panel having uniform hemispherical elevations or elevations in the shape of a sphere segment or a sphere layer between planar regions and spaced at a distance from one another,
• the two or in each case two hemisphere panels face each other with their elevations, and
• when two or in each case two hemisphere panels are combined with each other, the elevations of a hemispherical panel respectively make contact with their apex points or apex surfaces to a planar region of the other hemisphere panel, wherein
• two hemisphere panels are connected to each other in that the elevations are connected in the region of their apex points or apex surfaces with the planar region of the other or another hemisphere panel to which they make contact,
• the elevations of the hemisphere panels combined with each other are arranged at a distance to each other,
• the elevations carry a dimple pointing radially outward in the region of their apex points or apex surfaces,
• each hemisphere panel has openings in the area of its planar regions and in the elevation array to accommodate respectively one dimple, and
• for two or in each case two hemisphere panels combined with each other, the dimples of one hemisphere panel engage into the opening of the respectively other hemisphere panel with a shape lock.