Photovoltaic tile intended to be installed on passable exterior paving surfaces
A photovoltaic tile intended to be installed on walkable exterior pavements, includes a photovoltaic laminate arranged on a matrix base. The photovoltaic laminate includes a plurality of photovoltaic cells. The photovoltaic tile further includes an upper stratum having, at least, a first layer of a laminated polymer material on the photovoltaic laminate. The first layer includes a coating of resin with additives of mixed hollow glass microspheres and with an additive of powder particles, thus enabling the necessary mechanical and slipping resistance of the photovoltaic tile for walkable pavements and further enabling it to be installed on the existing pavement in such a way that installation times and costs are reduced.
1. A photovoltaic tile intended to be installed on walkable exterior pavements, comprising:
a photovoltaic laminate arranged on a matrix base, wherein said photovoltaic laminate comprises a plurality of photovoltaic cells,
an upper stratum comprising at least a first layer of a laminated polymeric material on the photovoltaic laminate, wherein said first layer in turn comprises a coating of resin with additives of mixed hollow glass microspheres and with an additive of powder particles, wherein the additive of powder particles has a percentage of 1-10% by weight with respect to the resin and/or the additive of hollow glass microspheres has a percentage of 0.1-2% by weight with respect to the resin, and
an inner chamber provided with a space defined between the matrix base and the photovoltaic laminate, wherein said inner chamber comprises a filling, the filling comprises:
marbled gravel to increase heat transmission from the photovoltaic cells to the outside; and
polyurethane foam.
2. The photovoltaic tile of claim 1 , wherein the polymer material is a high-transparency thermoplastic polyurethane resin.
3. The photovoltaic tile of claim 1 , wherein the additive of powder particles comprises transparent high-density polyethylene powder.
4. The photovoltaic tile of claim 1 , wherein the additive of powder particles is a polyamide additive.
5. The photovoltaic tile of claim 1 , wherein the upper stratum comprises a sealing layer provided with a two-component polyurethane-based resin.
6. The photovoltaic tile of claim 1 , wherein the upper stratum comprises a polymeric material with infrared radiation reflective properties in at least one layer.
7. The photovoltaic tile of claim 1 , wherein the matrix base comprises a perimeter frame and a plurality of ribs that define through grooves.
8. The photovoltaic tile of claim 1 , further comprising a lower part attached to the ground and wherein the matrix base is embedded in said lower part.
9. The photovoltaic tile of claim 1 , wherein the matrix base comprises a perimeter frame and a plurality of convex sections.
10. The photovoltaic tile of claim 9 , wherein the matrix base is rigidly attached to the ground.
11. The photovoltaic tile of claim 1 , wherein the matrix base comprises a perimeter frame and a plurality of through perimeter holes to the outside intended to house the interconnection wiring.
12. The photovoltaic tile according to claim 1 , which comprises:
an anchoring mechanism which in turn comprises rails equipped with threaded cylinders adapted to coincide with holes in a lower part which is anchored to the ground, and
an upper frame configured to attach the lower part to said upper frame.