Waterproof photovoltaic tile structure

Abstract

The utility model discloses a waterproof photovoltaic tile structure which comprises a front plate and a back plate, a perovskite cell is inserted between the front plate and the back plate, two sides of the perovskite cell are covered with adhesive films, waterproof sleeves are sleeved outside the front plate and the back plate, the top of the front plate and the top of the back plate are provided with lap joint structures, and the lap joint structures are connected with the front plate and the back plate. The lap joint structure comprises a first water blocking strip and a second water blocking strip which are laid in the length direction of the front plate and the back plate, and mounting holes are formed in the front plate and the back plate. According to the utility model, the front plate, the back plate, the perovskite cell, the bonding adhesive film and the waterproof sleeve are arranged, the waterproof sleeve is used for shielding the bonding gap between the front plate and the back plate, the waterproof effect on the gap is achieved, the waterproof performance of the tile is effectively improved, the lap joint structure is arranged, the first water blocking strip and the second water blocking strip are used for being in lap joint with the tiles on the upper side and the lower side, and the waterproof effect is achieved. The roof rainwater is prevented from flowing backwards, the waterproof performance of the tile is improved, and the service life of the tile is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic tiles, in particular to a waterproof photovoltaic tile structure. Background Technique

[0002] Perovskite solar cells are widely regarded by the industry as the next generation of highly potential large-scale industrialized photovoltaic power generation technologies due to their excellent characteristics. Perovskite solar cells have the advantages of high photoelectric conversion efficiency and low material cost. In the prior art, photovoltaic tiles are a new type of energy-saving building material that combines photovoltaic technology and building material tile technology. They have a beautiful appearance. Using perovskite cells to make photovoltaic tiles can reduce the manufacturing cost. At the same time, combined with the cuttable characteristics of perovskite cells, they can well adapt to various shapes and sizes of photovoltaic tiles. However, in actual applications, due to the high sensitivity of perovskite solar cells to water vapor, photovoltaic tiles are easily damaged due to water ingress, greatly shortening the service life, and the practicability needs to be improved. For this reason, we propose a waterproof photovoltaic tile structure. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a waterproof photovoltaic tile structure.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] Design a waterproof photovoltaic tile structure, including a front plate and a back plate. A perovskite cell is inserted between the front plate and the back plate. Adhesive films are covered on both sides of the perovskite cell. A waterproof sleeve is sleeved outside the front plate and the back plate. A lapping structure is provided at the top of the front plate and the back plate. The lapping structure includes a first water blocking strip and a second water blocking strip laid along the length direction of the front plate and the back plate. Installation holes are formed on the front plate and the back plate.

[0006] In the above solution, a sealing strip that abuts against the front plate is provided on the inner wall of the back plate. The front plate and the back plate are connected by buckles.

[0007] In the above solution, protruding splicing blocks are provided at both ends of the waterproof sleeve, and splicing grooves that fit the splicing blocks are formed on the surface of the waterproof sleeve.

[0008] In the above solution, the first water blocking strip and the second water blocking strip are arranged vertically, and a third water blocking strip arranged horizontally is provided between the first water blocking strip and the second water blocking strip.

[0009] In the above solution, the third water blocking strips are arranged at equal intervals, and the third water blocking strips divide the gap between the first water blocking strip and the second water blocking strip into multiple regions.

[0010] In the above solution, a junction box connected to the perovskite cell is provided on the back plate. The junction box is connected with a connector, and the junction box and the connector are located in the regions divided by the third water blocking strip.

[0011] In the above solution, connecting plates are fixed to the roots of the first water-blocking strip and the second water-blocking strip, and embedding grooves that fit the connecting plates are provided on the surfaces of the front plate and the back plate.

[0012] The advantages and beneficial effects of the present utility model are as follows: By providing a front plate, a back plate, a perovskite battery, an adhesive film, and a waterproof sleeve, the front plate and the back plate are used to construct the shape of the tile and provide an installation space for the perovskite battery. In cooperation with the adhesive film, the front plate and the back plate are bonded. Compared with the prior art, a waterproof sleeve is used to cover the bonded front plate and back plate to block the gap between the bonded front plate and back plate, achieving the effect of waterproofing the gap and effectively improving the waterproof performance of the tile. By providing a lapping structure and using the first water-blocking strip and the second water-blocking strip to lap with the tiles on the upper and lower sides, rainwater is blocked to prevent rainwater from flowing back into the roof, improving the waterproof performance of the tile and extending the service life of the tile. By providing splicing blocks and splicing grooves on the waterproof sleeve and using the mutually spliced splicing blocks and splicing grooves, adjacent tiles are tightly abutted against each other, greatly reducing the gap between adjacent tiles or even making the gap between adjacent tiles disappear, effectively inhibiting rainwater from flowing back, and further improving the waterproof performance of the tile. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of a waterproof photovoltaic tile structure proposed by the present utility model;

[0015] Figure 2 It is a schematic internal structure diagram of the front plate and the back plate of a waterproof photovoltaic tile structure proposed by the present utility model;

[0016] Figure 3 It is a cross-sectional view of a waterproof photovoltaic tile structure proposed by the present utility model.

[0017] In the figure: front plate 1, back plate 2, perovskite battery 3, sealing strip 4, adhesive film 5, waterproof sleeve 6, splicing block 7, splicing groove 8, mounting hole 9, first water-blocking strip 10, second water-blocking strip 11, third water-blocking strip 12, connecting plate 13, embedding groove 14, junction box 15, connector 16, buckle 17. Detailed Embodiments

[0018] The following will further describe the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0019] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a waterproof photovoltaic tile structure, including a front plate 1 and a back plate 2. The front plate 1 can be set as transparent glass or a weather-resistant transparent organic film. A perovskite battery 3 is inserted between the front plate 1 and the back plate 2;

[0020] Specifically, the perovskite battery 3 covers each flat tile. The perovskite battery 3 covering a single flat tile unit can be set as a complete battery or multiple batteries connected in series and parallel. Adjacent perovskite batteries 3 are connected by tinned copper strips for current transmission. Each front plate 1 is filled with multiple perovskite batteries 3;

[0021] The substrate of the perovskite battery 3 can be set as a metal substrate, such as stainless steel, or an organic plastic, such as a PET film. Both sides of the perovskite battery 3 are covered with an adhesive film 5. There are various choices for the adhesive film 5, including ethylene-vinyl acetate copolymer (EVA) film and polyolefin elastomer (POE) film;

[0022] Specifically, the front plate 1 and the back plate 2 are in the state of multiple spliced flat tiles. The flat tiles can be set as fish-scale tiles or diamond-shaped tiles, etc. The widths of the front plate 1 and the back plate 2 are in the range of 25 - 40 cm, and the length is more than 1 m. During installation, the large-size photovoltaic tiles like those of the present utility model can improve the construction progress and reduce the labor cost. Moreover, the large-size photovoltaic tiles shorten the boundary length compared with small-size photovoltaic tiles, so the wind resistance level is improved and the tiles are not easily damaged. Among them, when the front plate 1 is glass, the front plate 1 needs to be edge-ground. The width of the edge grinding is in the range of 1 - 3 cm. At this time, an anti-reflection film can be covered on the outer surface of the front plate 1 to reduce the reflection of sunlight on the surface of the photovoltaic tile, thereby improving the conversion efficiency of light energy. In addition, when the front plate 1 is edge-ground glass, patterns can also be engraved on the outer surface of the glass, which can not only increase the photovoltaic scattering but also make it more like building materials in terms of visual effect, increasing the ornamental value;

[0023] The shape of the back plate 2 is the same as that of the front plate 1. There are various choices for the material of the back plate 2, including TPT, metal, and a metal composite organic film structure;

[0024] Furthermore, a sealing strip 4 for abutting against the front plate 1 is provided on the inner wall of the back plate 2. The front plate 1 and the back plate 2 are connected by a buckle 17 for easy assembly; the sealing strip 4 is a butyl rubber water-blocking strip with a width in the range of 1 - 3 cm. There is a spacing of 1 - 5 mm between the butyl rubber water-blocking strip and the perovskite battery 3;

[0025] A waterproof sleeve 6 is provided outside the front panel 1 and the back panel 2;

[0026] Specifically, by setting the front panel 1, the back panel 2, the perovskite battery 3, the adhesive film 5 and the waterproof sleeve 6, using the front panel 1 and the back panel 2 to construct the shape of the tile and provide an installation space for the perovskite battery 3, and cooperating with the adhesive film 5 to bond the front panel 1 and the back panel 2. Compared with the prior art, the waterproof sleeve 6 is used to cover the bonded front panel 1 and back panel 2 to block the gap between the bonded front panel 1 and back panel 2, achieving the effect of waterproofing the gap and effectively improving the waterproof performance of the tile.

[0027] Furthermore, protruding splicing blocks 7 are provided at both ends of the waterproof sleeve 6, and splicing grooves 8 that fit the splicing blocks 7 are formed on the surface of the waterproof sleeve 6;

[0028] Specifically, by providing the splicing blocks 7 and the splicing grooves 8 on the waterproof sleeve 6, the mutually fitting splicing blocks 7 and splicing grooves 8 are used to make adjacent tiles abut tightly against each other, greatly reducing the gap between adjacent tiles or even making the gap between adjacent tiles disappear, effectively inhibiting rainwater backflow, and further improving the waterproof performance of the tile.

[0029] Lap structures are provided at the tops of the front panel 1 and the back panel 2. The lap structures include a first water-blocking strip 10 and a second water-blocking strip 11 laid along the length direction of the front panel 1 and the back panel 2; the widths of the first water-blocking strip 10 and the second water-blocking strip 11 are in the range of 0.5 - 1.5 cm, and materials such as silicone rubber or metal can be used.

[0030] Furthermore, connecting plates 13 are fixed at the roots of the first water-blocking strip 10 and the second water-blocking strip 11, and embedding grooves 14 that fit the connecting plates 13 are provided on the surfaces of the front panel 1 and the back panel 2;

[0031] Furthermore, the first water-blocking strip 10 and the second water-blocking strip 11 are arranged vertically, and a third water-blocking strip 12 arranged horizontally is provided between the first water-blocking strip 10 and the second water-blocking strip 11;

[0032] Furthermore, the third water-blocking strip 12 is arranged at equal intervals, and the third water-blocking strip 12 divides the gap between the first water-blocking strip 10 and the second water-blocking strip 11 into multiple regions;

[0033] Furthermore, a junction box 15 connected to the perovskite battery 3 is provided on the back panel 2, the junction box 15 is connected with a connector 16, and the junction box 15 and the connector 16 are located in the regions divided by the third water-blocking strip 12;

[0034] Specifically, by setting the lap structure, using the first water-blocking strip 10 and the second water-blocking strip 11 to lap with the tiles on the upper and lower sides to block rainwater, prevent rainwater from flowing back into the roof, improve the waterproof performance of the tile, and extend the service life of the tile.

[0035] Mounting holes 9 are provided on the front plate 1 and the back plate 2 for electrode lead-out and installation;

[0036] Specifically, the utility model can effectively reduce the exposed boundary, significantly reduce the materials used for water blocking treatment, simplify the encapsulation process, improve the overall water resistance of the photovoltaic tile, reduce the manufacturing cost at the same time. In the prior art, a single small-sized flat tile needs to install a junction box 15. Through layout optimization, only one junction box 15 is needed for the large-sized photovoltaic tile proposed in the utility model, which greatly reduces the manufacturing cost per tile and is conducive to the large-scale application and popularization of photovoltaic tiles.

[0037] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A waterproof photovoltaic tile structure, comprising a front plate (1) and a back plate (2), characterized in that: A perovskite cell (3) is inserted between the front plate (1) and the back plate (2), and both sides of the perovskite cell (3) are covered with adhesive films (5). The front plate (1) and the back plate (2) are provided with waterproof sleeves (6). The tops of the front plate (1) and the back plate (2) are provided with overlapping structures, and the overlapping structures include a first water blocking strip (10) and a second water blocking strip (11) laid along the length direction of the front plate (1) and the back plate (2). The front plate (1) and the back plate (2) are provided with mounting holes (9).

2. A waterproof photovoltaic tile structure according to claim 1, characterized in that: The inner wall of the back plate (2) is provided with a sealing strip (4) abutting against the front plate (1), and the front plate (1) and the back plate (2) are connected via a buckle (17).

3. A waterproof photovoltaic tile structure according to claim 1, characterized in that: The waterproof cover (6) is provided with protruding splicing blocks (7) at both ends, and the surface of the waterproof cover (6) is provided with splicing grooves (8) that fit with the splicing blocks (7).

4. A waterproof photovoltaic tile structure according to claim 1, characterized in that: The water blocking strip 1 (10) and the water blocking strip 2 (11) are arranged vertically, and a horizontally arranged water blocking strip 3 (12) is provided between the water blocking strip 1 (10) and the water blocking strip 2 (11).

5. A waterproof photovoltaic tile structure according to claim 4, characterized in that: The three water blocking strips (12) are arranged at equal intervals, and the three water blocking strips (12) divide the gap between the first water blocking strip (10) and the second water blocking strip (11) into a plurality of areas.

6. A waterproof photovoltaic tile structure according to claim 5, characterized in that: The back plate (2) is provided with a junction box (15) connected to the perovskite cell (3), the junction box (15) is connected to a connector (16), and the junction box (15) and the connector (16) are located in the area divided by the third water blocking strip (12).

7. A waterproof photovoltaic tile structure according to claim 1, characterized in that: A connecting plate (13) is fixed at the root of the first water blocking strip (10) and the second water blocking strip (11), and an embedded groove (14) matching with the connecting plate (13) is provided on the surface of the front plate (1) and the back plate (2).

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