Static structures (e.g. – buildings) – Combined – With a sunlight activated device
Patent
1996-06-26
1998-06-23
Friedman, Carl D.
Static structures (e.g., buildings)
Combined
With a sunlight activated device
52519, 52522, 136244, 136251, 136291, E04D 1318, H01L 31048
Patent
active
057688311
DESCRIPTION:
BRIEF SUMMARY
The invention relates to roof tile/roof slate/wall plate made of a plate of clay, ceramic, concrete, fiber cement or synthetic, serving as a carrier for a solar panel with photovoltaic solar cells attached on the upper side. The solar panel is form-fittingly attached to the upper side of the roof tile/roof slate/wall plate with at least two sides opposite to one another at the inner edges of an indent of a roof tile/roof slate/wall plate.
European patent application EP 0 440 103 A2 discloses a solar panel attached to the upper side of a roof tile. The solar panel is attached form-fittingly such that the material of the roof tile/roof slate protrudes at least on two opposite sides such that it reaches over one area, particularly the edge of the solar panel which secures the solar panel from being lifted off. The solar panel is, particularly from above, pressed onto the roof tile and, due to its own flexibility, hooks into a recess of the roof tile.
It became apparent that roof tiles have liberal production tolerances making the fit of the solar panels insufficient; they are either seated too loosely on the roof tile or are too large to fit.
JP-A-31 24 070 discloses solar cells that are mounted in a common frame with metal hooks attached to the bottom of the solar cells such that the hooks engage in the frame. Due to this particular mounting method, the solar cells are protected from mechanical damage due to thermal expansion.
It is the object of the invention to improve a roof tile/roof slate/wall plate with solar panel such that the solar panel will always have a secure and precise hold without damaging the solar cells during installation, even with the liberal production tolerances.
This object is attained by the embodiment according to the invention.
The flexible extensions of the solar panel, protruding on the sides, can be fitted to the diverse deviations in dimensions providing always a secure and strong hold. In this manner, the solar panels will fit into the roof tile/roof slate/wall plate, even when the inside dimensions of the roof tile/roof slate/wall plate are significantly smaller than intended.
It is particularly advantageous if the recesses cover a length that is a fraction of the entire length of the inner edge. These recesses may be groove sections, longitudinal holes, pockets, and/or bore holes. The extensions should also be carried by a frame or built into, particularly joined to, a frame surrounding the solar cell(s).
It is most advantageous if the extensions protrude at the bottom side of the solar panel in a beveled downwards fashion.
In this manner, the extensions are located very low at the solar panel, finding support relatively low at the roof tile, thereby having the module itself seated high on the roof truss, allowing the upper surface of the solar panel to be in line with the upper surface of the roof tile, and thus avoiding dirt from depositing on the rims and extensions.
Secure sealing is achieved when a longitudinal rabbet profile protrudes to the side at the upper edge of the frame and butts tightly with the roof tile/roof slate/wall plate.
A particularly tight hold of the solar panel on the roof tile/roof slate/wall plate is achieved if numerous micro containers (micropheres), containing glue, are attached to the surface of the extensions. These micro containers may contain as one part a first component and as second part a second component of a two component adhesive.
A particularly good bond and optimal hold of the photovoltaic elements in the frame of the solar panel is achieved if a non-metallic, elastic material, particularly silicone, is applied between the photovoltaic element and the frame. The silicone will build a watertight seal after curing. The silicone will form a chemical compound with the glass of the photovoltaic element and with the synthetic material, particularly silicone, of the frame. This results in an unbreakable bond which protects the solar cells from the infiltration of corrosive atmospheres.
Chamfering of the solar panel's glass pane and an over
REFERENCES:
patent: 5022381 (1991-06-01), Allegro
patent: 5112408 (1992-05-01), Melchior et al.
patent: 5578142 (1996-11-01), Hattori et al.
Blue Planet AG
Friedman Carl D.
Horton-Richardson Yvonne
Oliver Milton
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