Structural arrangement for a multi-layer photovoltaic module, composed of laminated cells and batteries, for use in panels and / or tiles

Abstract

The present invention relates to a structural arrangement for a multi-layer photovoltaic module, composed of laminated cells and batteries, for use in panels and / or tiles, comprising incorporation of the photovoltaic units (cells) mounted integrally with the batteries, said batteries having a laminated structure, the proposed arrangement comprising a laminar panel formed by layers interconnected by connecting EVA sheets [2, 2' and 2"] and closed by a rigid plastic layer [7] on its lower portion and by a glass or PET sheet [3] covering silicon cell-units [1] on its upper portion, characterized in that the silicon cell-units [1] are mounted on a laminar battery formed by a cathode sheet [4], placed on top of a dielectric laminated separator [5], placed on top of the anode sheet [6], said "sandwich" layers being composed of "strips" where one of the short sides has a projection [8] from which the electrical cables extend.

Description

[0001] “CONSTRUCTION DISPOSITION IN MODULE

[0002] MULTILAYER PHOTOVOLTAIC, COMPOSED OF LAMINATED CELLS AND BATTERIES, FOR APPLICATION IN

[0003]

[0001] This patent proposal relates to a constructive arrangement intended to improve the manufacture of solar panels, photovoltaic energy collectors-converters for electrical energy. The proposal, as implied by the title, comprises the integration of the photovoltaic units (cells) assembled in a monoblock form together with the batteries, which, in turn, are constructed in a laminated form.

[0004]

[0002] Basically, the idea is to build the batteries in a flat, thin shape, so that they form an integral part of the solar panels.

[0005]

[0003] The current state of the art includes a multitude of photovoltaic systems composed of laminated solar panels or models already integrated into roof tiles. The applicant, in fact, is a manufacturer of roof tiles equipped with integrated solar cells.

[0006]

[0004] There are several construction types of photovoltaic panels, and the most common is the one based on silicon cells. The patent proposal applied for here does not refer to the composition of the solar cells, much less the composition of the batteries, but rather to the combination of both to form a more compact and versatile monoblock unit, with a view to reducing the final weight of the assembly, reducing costs, and streamlining production (among other advantages).

[0005] What is currently known in terms of photovoltaic systems is the combination of laminar cells (made of silicon or other materials) that are assembled into large panels or tiles, to receive direct sunlight.These systems require the incorporation of external batteries and external electronic modules, whose basic function is to store electrical energy (batteries) and convert the DC electrical signal to AC (electronic modules), for later discharge into the external power grid or direct consumption. As stated, the proposal described here does not aim to detail the physical composition of the photovoltaic cells, the battery, or even the electronic management module, but rather the constructive nature of the assembly. This is because the design of a solar panel, whether the panel itself or a photovoltaic tile, can vary from manufacturer to manufacturer. However, one thing is basic to virtually all projects: "all" require: 1) a photovoltaic cell, 2) a battery, and 3) an external control module.

[0007]

[0006] This gives rise to the problems we will now analyze. Whether we're dealing with a state-of-the-art photovoltaic panel or photovoltaic tile, the truth is that in either case, the light energy captured by the photovoltaic cells is converted into direct current electricity, which, in turn, cannot be fed directly into the grid. Therefore, all photovoltaic systems require the use of batteries to store the generated electricity.

[0007] And it's in the aforementioned section that the technical trick begins; batteries, as is well known, are heavy and cumbersome devices, requiring very well-planned physical installations. The problem is that batteries in photovoltaic systems end up having to be installed far from the panels or tiles, due to their volume and weight, requiring the use of technical assemblies and other devices, in addition to long power cables, which further increases the cost of the project.

[0008] In the case of photovoltaic tiles, the problem directly relates to practicality, as the ideal would be for the user to have a “plug and play” system, where the roof could be quickly assembled for immediate use.

[0008]

[0009] Note that a photovoltaic system must necessarily store generated energy, and let's understand why. For example, if a photovoltaic system is continuously generating energy from sunlight in a remote location, but the consumer can only use said electricity at night, then it will be necessary to store the electricity generated by the system, and this storage is done with batteries. However, as mentioned, the installation of the entire photovoltaic project is still somewhat complex and expensive, and, as a rule, requires the consumer to hire specialized labor for installation, including the most basic assembly.

[0009]

[0010] And what is the innovative proposal here? Precisely that: making the photovoltaic panel or tile completely "plug and play." To this end, the applicant designed a modular system in which the photovoltaic panel is integrated with the battery, but the latter is constructed in a laminar format, occupying the entire lower surface of the panel. This means that each photovoltaic panel unit simultaneously generates and stores electricity. [OH] The advantages are immense, as it reduces costs and makes assembly much faster, since it eliminates the need for heavy external batteries.

[0010]

[0012] Another advantage is practicality, as both a common photovoltaic panel and a photovoltaic tile become practically “plug in play”.

[0011]

[0013] The applicant's idea is to produce modular laminated panels, in a way that allows for different assemblies, on existing structures and / or on tiles.

[0012]

[0014] Some tests carried out showed that the system may have good tenacity characteristics, that is, the ability to conform (bend) to follow surfaces that are not so flat, since the batteries that are added to the solar panels (below these) are formed in thin layers and, therefore, flexible.

[0013]

[0015] Another advantage is that, mounted on flat tiles (whether the applicant's or not), the modular photovoltaic panels integrated with the laminated batteries will become interchangeable, that is, if one becomes damaged, it can be replaced quickly, without losing the entire "tile" set. In this sense, the applicant has already registered an industrial design for a tile profile equipped with fitting means for individual solar panels.

[0014]

[0016] In a first stage, the applicant's vision is to provide the tile models it manufactures with this modular panel system, but also to make said panels available for various uses in photovoltaic generating system projects.

[0015]

[0017] Due to these advantages, technical effect achieved and novelty, it is believed that the present proposal is worthy of the privilege requested.

[0016]

[0018] Therefore, for a better understanding of the model, references will be made to the attached drawings where:

[0017] Figure 1 shows an exploded view of the components of the laminated photovoltaic modular panel, including the tile;

[0018] Figure 2 shows in isometric perspective the set of four modular photovoltaic panels;

[0019] Figure 3 shows an example of applying the panel to a tile.

[0020]

[0019] “CONSTRUCTION ARRANGEMENT IN MULTILAYER PHOTOVOLTAIC MODULE, COMPOSED OF LAMINATED CELLS AND BATTERIES, FOR APPLICATION IN PANELS AND / OR TILES”, in accordance with the scope shown in the attached figures, consisting of a multilayer assembly, where each photovoltaic panel [PF] comprises silicon cell units [1] or equivalent and is covered in its upper portion by a transparent “EVA” film [2], functioning as a binding element to the glass sheet [3], which alternatively may be made of “PET” plastic, if the constructivity implies that the modular panel is flexible.

[0020] The silicon cells

[0001] are preceded by another layer / film [2'] of “EVA” that functions as a connecting element to the “cathode” sheet [4], superimposed on a dielectric separator [5], preferably flexible plastic, in turn superimposed on the “anode” sheet [6], with the cathode and anode having extensions [4' and 6'] that are the electrical connecting elements of the aforementioned poles.Items [4, 5 and 6] specifically form the composition of the battery.

[0021]

[0021] Said set is then superimposed on another binding film [2”], made of “EVA”, which is in turn superimposed on a rigid plastic sheet [7], which provides the physical structure to the modular panel to be used on a ready structure or on a tile [T].

[0022]

[0022] The assembly then forms a laminated modular unit, rectangular in shape, which will be a solar energy collector-converter on its upper surface, having the battery in its entire dorsal integrity. One of the ends of each modular photovoltaic panel has an extension [8] from which the electrical cables that connect to the controller module [M], DC-AC converter, located underneath the tile, depart.

Claims

Claim 1 “CONSTRUCTION ARRANGEMENT IN MULTILAYER PHOTOVOLTAIC MODULE, COMPOSED OF LAMINATED CELLS AND BATTERIES, FOR APPLICATION IN PANELS AND / OR TILES”, formed by layers interconnected by EVA binding sheets [2, 2' and 2”], closed in its lower portion by a rigid plastic layer [7] and in its upper part, by a glass or PET sheet [3] covering silicon cell units [1], characterized by the fact that the silicon cell units [1] are mounted on a laminar battery formed by a cathode sheet [4], superimposed on a dielectric laminated separator [5], superimposed on the anode sheet [6], being said “sandwich” layers composed in “strips”, with the cathode and anode having electrical extensions [4' and 6'] to opposite sides, with the sandwich formed by the assembly comprising each panel [PF] which has on one of the smaller sides an extension [8] from which the electrical cables connecting to the controller module depart.

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