Patent ID: 8656665

Claim:
A multi-layered heat insulating window panel ( 10 ), comprising: a first pane ( 12 ) and a supplementary pane ( 14 ) on at least one surface of the first pane ( 12 ), forming at least one double-glazing arrangement, wherein the double-glazing arrangement comprises an assembly edge ( 53 ) which can be framed and attached in the frame structure ( 36 ) and which is kept in position by the frame structure ( 36 ) after being installed, wherein the supplementary pane ( 14 ) has a tray-like shape with an inner window area ( 16 ) and an edge region ( 18 ) surrounding the window area, wherein the edge region ( 18 ) has a sealing frame ( 43 ) with a circumferential sealing surface ( 44 ) and a connecting frame ( 48 ) which connects the sealing frame ( 43 ) with the window area ( 16 ), wherein the connecting frame ( 48 ) extends vertically or transverse to the window plane (E) so that the window area ( 16 ) and the sealing surface ( 44 ) are offset in parallel in relation to the window plane (E) and the window area ( 16 ) is mostly spaced apart from the first pane, forming a sandwich-like cavity ( 34 ) in the window area between the first pane ( 12 ) and the supplementary pane ( 14 ), wherein the sealing surface ( 44 ) forms a complete circumferential hermetic connection with the first pane ( 12 ) and the cavity ( 34 ) between the first pane ( 12 ) and the supplementary pane ( 14 ) is closed in vacuum-tight manner, wherein the window area ( 16 ) comprises a number of supporting elements ( 26 , 26 ′, 26 ″, 26 ′″) protruding from the plane (F) of the window area, and wherein the supplementary pane ( 14 ) is designed in the form of a plastic molding, and the supporting elements in the direction of the first pane ( 12 ) are formed as an integral part of the supplementary pane ( 14 ) and form a supporting grid ( 28 ) with a pre-defined maximum spacing between the supporting elements, wherein the cavity ( 34 ) is evacuated and the supporting grid ( 28 ) of the supplementary pane ( 14 ) firmly supports the supplementary pane ( 14 ) and the first pane ( 12 ) against each other in order to prevent collapsing due to the external atmospheric pressure.