| 摘要 |
Vacuum solar thermal panel comprising a vacuum envelope defining a sealed volume, able to withstand atmospheric pressure when evacuated, said vacuum envelope comprising a first plate made of glass, a second plate facing the first plate, a perimeter frame disposed between the first and second plate close to their edge, a metallic perimeter belt joining the perimeter frame to the first plate, a plurality of spaced apart bearing elements disposed against the edges of the first and second plate, a plurality of traction rods joining said bearing elements with said perimeter frame to pull the perimeter frame toward the bearing elements, in order to limit the deformation of the perimeter frame under the external atmospheric pressure, when the envelope is evacuated.
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