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

1. 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.

2. The sandwich construction element according to claim 1 , wherein

each hemisphere panel has the elevations in a matrix-shaped elevation array, and

the elevation array of the hemisphere panels combined with each other is equivalent.

3. The sandwich construction element according to claim 1 , comprising

at least two hemisphere panels connected to each other on two perimeter sides,

wherein the two hemisphere panels connected to each on two perimeter sides accommodate a volumetric flow of a liquid or gaseous medium from one of the remaining perimeter sides to the other remaining perimeter side.

4. The sandwich construction element according to claim 1 , comprising lines embedded between two hemisphere panels facing each other and between the elevations of these hemisphere panels.

5. The sandwich construction element according to claim 1 , wherein a free space between two hemisphere panels facing each other and between the elevations comprised by said hemisphere panels is filled with an insulating material .

6. The sandwich construction element according to claim 1 , comprising elevations filled with an intumescent construction material.

7. The use of a sandwich construction element according to claim 1 as panel heater or panel cooler.

8. The use of a sandwich construction element according to claim 1 as sun collector.

9. A method for producing a sandwich construction element according to claim 1 , wherein at least two hemisphere panels are oriented to face each other with their elevations and are combined with each other in a configuration, wherein the apex points or apex surfaces of the elevations make contact to a hemisphere panel, respectively on a planar region of the other hemisphere panel between elevations located there, wherein

the at least two hemisphere panels are combined by connecting the apex points or apex surfaces of the elevations of one hemisphere panel with respectively one planar region of the other hemisphere panel between elevations located there.

10. The method according to claim 9 , wherein the at least two hemisphere panels are combined by connecting the apex points or apex surfaces of the elevations of one hemisphere panel with respectively one planar region of the other hemisphere panel between elevations located there such that the elevations of the hemisphere panels combined with each other are arranged at a distance to each other.

11. The method according to claim 9 , wherein the at least two hemisphere panels are combined by gluing or melting together radially outward pointing dimples originating in the region of the apex points or apex surfaces from the elevations of a hemisphere panel with respectively one opening in a planar region of the other hemisphere panel between elevations located there.