Self-energy-storage photovoltaic integrated tile for building

Abstract

The utility model relates to the technical field of building materials and photovoltaic power generation integration, specifically relates to a self-energy-storage photovoltaic integrated tile for buildings, and especially relates to a photovoltaic tile. The self-energy-storage photovoltaic integrated tile for the building comprises a protective layer (1), a battery layer (3), a first electrode layer (5), a diaphragm layer (6), a second electrode layer (7) and a tile body (10) which are stacked from top to bottom, preferably, the self-energy-storage photovoltaic integrated tile further comprises a rigid substrate (9) between the second electrode layer (7) and the tile body (10), and the protective layer (1) and the battery layer (3) as well as the battery layer (3) and the first electrode layer (5) are arranged in a staggered mode. And a packaging adhesive film layer (2) is arranged between the second electrode layer (7) and the rigid substrate (9). According to the self-energy-storage photovoltaic integrated tile for the building, solar energy can be converted into electric energy, and clean energy is provided for families or the building.

Description

Technical Field

[0001] This utility model relates to the field of building materials and integrated photovoltaic power generation technology, specifically to self-storage photovoltaic integrated tiles for buildings. Background Technology

[0002] Currently, existing photovoltaic (PV) modules are typically constructed by laminating tempered glass and solar cells, framing them with an aluminum frame, and sealing the edges with silicone. However, due to the tempered glass and aluminum frame, these PV modules are generally quite heavy, making them unsuitable for roofs that cannot bear the weight. Related technologies use transparent panels and backsheets instead of glass, significantly reducing weight. However, this significantly reduces the impact resistance of the lightweight modules. Impacts from hail can cause microcracks in the solar cells, damaging the module and affecting its lifespan.

[0003] Therefore, existing photovoltaic modules used on building roofs have some shortcomings in structural design, such as insufficient mechanical strength and poor durability. Utility Model Content

[0004] In view of the problems and shortcomings of the existing technology, this utility model provides a self-storage photovoltaic integrated tile for buildings.

[0005] The technical solution of this utility model is as follows:

[0006] Building-integrated photovoltaic (PV) tiles with self-storage technology include, from top to bottom, a protective layer, a battery layer, a first electrode layer, a separator layer, a second electrode layer, and a tile body. An encapsulating film layer is provided between the protective layer and the battery layer, and between the battery layer and the first electrode layer. One of the first electrode layer and the second electrode layer is a cathode layer, and the other is an anode layer.

[0007] The first electrode layer and the second electrode layer are connected by an external circuit. The diaphragm layer is made of a transparent insulating material, such as one of EVA (ethylene-vinyl acetate copolymer), POE (polyolefin elastomer), PVB (polyvinyl butyral), TPT (Tedlar-PET-Tedlar), etc.

[0008] Preferably, the building-integrated self-storage photovoltaic tile further includes a rigid substrate disposed between the second electrode layer and the tile body, and an encapsulating film layer is also provided between the second electrode layer and the rigid substrate (if the rigid substrate is not present, the encapsulating film layer is provided between the second electrode layer and the tile body).

[0009] The first electrode layer can be a cathode layer, and the second electrode layer can be an anode layer. The protective layer is made of a material with a certain degree of transparency and strength.

[0010] Furthermore, the protective layer is made of polyethylene terephthalate (PET) or glass.

[0011] The encapsulating film layer is made of a transparent material with certain adhesion and flexibility.

[0012] Furthermore, the encapsulating film layer is made of ethylene-vinyl acetate copolymer (EVA) material.

[0013] The battery layer consists of multiple battery strings connected in series, and each battery string includes several battery cells connected in series.

[0014] The rigid substrate is made of a material with certain strength and heat resistance. Alternatively, it can be made of aluminum alloy, ceramic substrate, carbon fiber composite material, polyimide (PI), or polyetheretherketone (PEEK).

[0015] Preferably, the tile body is a corrugated tile, having multiple mounting portions arranged side by side and connecting portions connecting the mounting portions. The mounting portions are arched with openings facing downwards, and their top surfaces are connected to layers including a protective layer, a battery layer, a first electrode layer, a separator layer, a second electrode layer, and a rigid substrate. Specifically, the top surface of each mounting portion is sequentially stacked with an encapsulating film layer, a second electrode layer, a separator layer, a first electrode layer, an encapsulating film layer, a battery layer, an encapsulating film layer, a protective layer, an encapsulating film layer, and a rigid substrate layer, wherein the battery layer above each mounting portion is a battery string composed of a group of battery cells connected in series.

[0016] The beneficial effects of this utility model are:

[0017] The building-integrated photovoltaic tile with self-storage provided by this utility model can convert solar energy into electrical energy, providing clean energy for homes or buildings. By generating its own electricity, it reduces dependence on the power grid and lowers electricity costs.

[0018] This utility model provides a building-integrated self-storage photovoltaic tile, particularly a photovoltaic tile. The photovoltaic tile serves as both a roofing material and a power generation device, achieving efficient space utilization. It is installed directly on the roof, requiring no additional ground space, making it particularly suitable for areas with limited space and for ground-floor buildings with ample sunlight. Made of high-strength materials, the photovoltaic tile can withstand harsh weather conditions such as wind, rain, and snow. Installation is similar to traditional roof tiles, simplifying construction and reducing installation time and costs. The modular design facilitates expansion and maintenance. Photovoltaic tiles are typically maintenance-free, requiring only simple cleaning and inspection daily.

[0019] Using the building-integrated photovoltaic tile with self-storage provided by this utility model can reduce dependence on fossil fuels, reduce carbon emissions, and contribute to environmental protection. It is suitable for various scenarios such as residential buildings, commercial buildings, and public facilities. It can be used in new buildings or for the renovation of existing buildings. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0021] The components represented by the various reference numerals in the diagram are:

[0022] 1. Protective layer; 2. Encapsulating film layer; 3. Battery layer; 5. First electrode layer; 6. Separator layer; 7. Second electrode layer; 9. Rigid substrate; 10. Tile body. Detailed Implementation

[0023] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0024] Example

[0025] See Figure 1 The building-integrated photovoltaic tile of this embodiment includes a protective layer 1, a battery layer 3, a first electrode layer 5, a separator layer 6, a second electrode layer 7 and a tile body 10 stacked from top to bottom. In this embodiment, a rigid substrate 9 is preferably provided between the second electrode layer 7 and the tile body 10. An encapsulating film layer 2 is provided between the protective layer 1 and the battery layer 3, between the battery layer 3 and the first electrode layer 5, and between the second electrode layer 7 and the rigid substrate 9.

[0026] In this embodiment, the first electrode layer 5 is the cathode layer, the second electrode layer 7 is the anode layer, the first electrode layer 5 and the second electrode layer 7 are connected by an external circuit, and the diaphragm layer 6 is made of a transparent insulating material, such as one of EVA (ethylene-vinyl acetate copolymer), POE (polyolefin elastomer), PVB (polyvinyl butyral), TPT (Tedlar-PET-Tedlar), etc.

[0027] In one specific embodiment, see Figure 1 The building self-storage photovoltaic integrated tile of this utility model specifically includes, from top to bottom, a protective layer 1, an EVA encapsulation film layer 2, a battery layer 3, an EVA encapsulation film layer 2, a first electrode layer 5, a separator layer 6, a second electrode layer 7, an EVA encapsulation film layer 2, a rigid substrate 9, and a tile body 10, which are bonded together sequentially.

[0028] In this embodiment, the protective layer 1, as the outermost layer, provides mechanical protection and light transmittance, and can be made of PET or glass. The encapsulating film layer 2, as an adhesive layer, bonds the protective layer (in this embodiment, the PET / glass layer) to the battery layer 3, and can be made of EVA, POE, or EPE material. The battery layer 3 contains the core functional components of the battery, used for energy storage and release. The encapsulating film layer 2, as an adhesive layer, bonds the battery layer 3 to the first electrode layer 5. The first electrode layer 5 contains cathode material for the electrochemical reaction of the battery. The separator layer 6 isolates the cathode and anode to prevent short circuits. The second electrode layer 7 contains anode material for the electrochemical reaction of the battery. The encapsulating film layer 2, as an adhesive layer, bonds the second electrode layer 7 to the rigid substrate 9. The rigid substrate 9, as a support layer, provides mechanical strength and stability. The roof tile 10 supports the above layers and is installed on the roof of the building, serving the functions of building construction and photovoltaic power generation.

[0029] The protective layer 1 should have a certain degree of transparency and strength, and can be made of a material with high transparency and high strength. In this embodiment, the protective layer 1 is made of either PET or glass.

[0030] The encapsulating film layer 2 is made of a transparent material with certain adhesion and flexibility. In this embodiment, the encapsulating film layer 2 is made of EVA material.

[0031] The third solar cell layer comprises multiple cell strings connected in series, with each string containing several solar cells connected in series. The solar cell layer, made of photovoltaic materials (such as silicon or cadmium telluride), is responsible for converting light energy into electrical energy. The first electrode layer collects photogenerated electrons. The second electrode layer collects photogenerated holes.

[0032] The battery layer may also include busbars, junction boxes, and diodes. The welded battery strings are arranged and welded to the busbars to form the mainstream series-parallel circuit structure. The leads of the busbars are connected in series with bypass diodes in the junction box.

[0033] The rigid substrate 9 should have certain strength and heat resistance, and can be made of a material with high strength and heat resistance. In this embodiment, one of aluminum alloy, ceramic substrate, such as carbon fiber composite material, polyimide (PI), and polyetheretherketone (PEEK) is used.

[0034] In one embodiment, see Figure 1The tile body 10 is a corrugated tile with multiple mounting sections arranged side by side and connecting sections connecting the mounting sections. The mounting sections are arched with downward openings and connected to a rigid substrate 9 at the top. The connecting sections are flat plates connected to the bottom of adjacent mounting sections. Specifically, the top surface of each mounting section is connected to the rigid substrate 9. Above the rigid substrate 9, from bottom to top, are stacked the following layers in sequence: encapsulating film layer 2, second electrode layer 7, separator layer 6, first electrode layer 5, encapsulating film layer 2, battery layer 3, encapsulating film layer 2, and protective layer 1. The battery layer 3 above each mounting section is a battery string composed of a group of battery cells connected in series.

[0035] In the manufacturing process, a lamination process can be used, where the materials are stacked in sequence and then hot-pressed to form the final product. This ensures that the layers are firmly bonded together, free of bubbles and defects.

[0036] The above description represents preferred embodiments of this utility model. However, this utility model is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes, equivalent substitutions, and improvements made without departing from the concept of this invention should be included within the protection scope of this utility model. For example, this utility model preferably describes an improved self-storage photovoltaic integrated component technology represented by photovoltaic tiles. However, those skilled in the art can directly apply this technology to various building components such as tiles and panels. Furthermore, the stacking order of the second electrode layer and the first electrode layer can be equivalently replaced; such simple transformations and substitutions should be included within the protection scope of this utility model.

Claims

1. A building-integrated photovoltaic tile with self-storage, characterized in that, The device includes a protective layer (1), a battery layer (3), a first electrode layer (5), a separator layer (6), a second electrode layer (7), and a tile body (10) stacked from top to bottom. An encapsulating film layer (2) is provided between the protective layer (1) and the battery layer (3), and between the battery layer (3) and the first electrode layer (5). One of the first electrode layer (5) and the second electrode layer (7) is a cathode layer, and the other is an anode layer.

2. The self-storage photovoltaic integrated tile for buildings according to claim 1, characterized in that, It also includes a rigid substrate (9) disposed between the second electrode layer (7) and the tile body (10), and an encapsulating film layer (2) is also provided between the second electrode layer (7) and the rigid substrate (9).

3. The self-storage photovoltaic integrated tile for buildings according to claim 1 or 2, characterized in that, The first electrode layer (5) is a cathode layer, and the second electrode layer (7) is an anode layer.

4. The self-storage photovoltaic integrated tile for buildings according to claim 1 or 2, characterized in that, The protective layer (1) is made of a material with a certain degree of transparency and strength.

5. The building-integrated self-storage photovoltaic tile according to claim 4, characterized in that, The protective layer (1) is made of polyethylene terephthalate (PET) or glass.

6. The self-storage photovoltaic integrated tile for buildings according to claim 1 or 2, characterized in that, The encapsulation film layer (2) is made of a transparent material with certain adhesion and flexibility.

7. The building-integrated photovoltaic tile with self-storage energy storage according to claim 6, characterized in that, The encapsulating film layer (2) is made of ethylene-vinyl acetate copolymer (EVA) material.

8. The self-storage photovoltaic integrated tile for buildings according to claim 1 or 2, characterized in that, The battery layer (3) includes multiple battery strings connected in series, and each battery string includes several battery cells connected in series.

9. The self-storage photovoltaic integrated tile for buildings according to claim 2, characterized in that, The rigid substrate (9) is made of a material with certain strength and heat resistance.

10. The self-storage photovoltaic integrated tile for buildings according to claim 2, characterized in that, The tile body (10) is a corrugated tile with multiple mounting parts arranged side by side and connecting parts connecting the mounting parts. The mounting parts are arched with downward openings and the top surface is connected to various layers including a protective layer (1), a battery layer (3), a first electrode layer (5), a separator layer (6), a second electrode layer (7), and a rigid substrate (9).

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