Ultra-black photovoltaic module

Abstract

The utility model relates to the technical field of solar cell modules, in particular to an ultra-black photovoltaic module, which comprises a plurality of cells which are uniformly arranged in an array, gaps are arranged between adjacent cells, the cells are communicated into a plurality of rows of cell strings through series welding strips, the same ends of all rows of cell strings are connected to a bus bar, and the same ends of all rows of cell strings are connected to the bus bar. The upper surface of the battery piece is connected with front glass through a layer of packaging adhesive film, the series welding strip and the bus bar are provided with a black separation blade with a plurality of air ports, the air ports are arranged in one-to-one correspondence with the positions of the battery piece, and the lower surface of the battery piece is connected with a black back plate through a layer of packaging adhesive film. A black frame is arranged around the edges of the front glass and the black back plate, and the black frame is flush with the upper surface of the front glass; the utility model is suitable for the fields of high-end building integration, landscape facilities and the like; and the frame is flush with the upper surface of the front glass, and the gluing seam is black, so that the consistency and attractiveness of the front of the photovoltaic module are further improved, drainage is facilitated, and the phenomenon of water accumulation in a groove is avoided.

Description

Technical Field

[0001] This utility model relates to the field of solar cell module technology, and in particular to an ultra-black photovoltaic module. Background Technology

[0002] my country is the world's largest producer of photovoltaic modules, possessing the world's largest demand and supply market. The rapid development of photovoltaic technology has led to the emergence of many new products. Among them, ultra-black photovoltaic modules not only reduce light pollution but also present a complete, harmonious, and aesthetically pleasing appearance, making them suitable for use with modern architectural designs and ideal for high-end rooftop projects and integrated engineering projects.

[0003] Continuously improving and upgrading the technology of ultra-black photovoltaic modules can better meet the market demand for black photovoltaic roofs, lead the trend of technological aesthetics, and solve the problem that traditional photovoltaic modules have poor coordination with the surrounding environment in some specific application scenarios, such as high-end building integration and landscape facilities. Summary of the Invention

[0004] The purpose of this invention is to provide a novel ultra-black photovoltaic module.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An ultra-black photovoltaic module includes several uniformly arranged solar cells with gaps between adjacent cells. The cells are connected to form several rows of cell strings by stringing ribbons. The same end of all rows of cell strings is connected to a busbar. A front glass is connected to the top of each cell by a layer of encapsulating film. A black baffle with several openings is provided on the stringing ribbons and busbars, with each opening corresponding to a cell position. A black backplate is connected to the bottom of each cell by a layer of encapsulating film. A black frame is provided around the edges of the front glass and the black backplate, and the black frame is flush with the upper surface of the front glass.

[0007] Furthermore, the gap between the front glass and the black back panel and the black frame is filled with frame sealing adhesive. The black frame includes an upper wing plate, a web plate and a lower wing plate connected in sequence from top to bottom. The surface of the upper wing plate that is close to the front glass is a bevel. The upper surface edge of the front glass is provided with a beveled chamfer.

[0008] Furthermore, the battery cell is embedded in the opening, and the upper surface of the battery cell is not lower than the upper surface of the black baffle.

[0009] Furthermore, the thickness of the black baffle is 20–500 μm.

[0010] Furthermore, the front glass and the black back panel have the same thickness.

[0011] Furthermore, the surface of the black border is coated with a black resin film layer.

[0012] Furthermore, the upper wing plate and the lower wing plate are located on the same side of the web plate, and the chamfered edge is connected to the lower surface of the upper wing plate by a layer of frame sealing adhesive.

[0013] The beneficial effects of adopting the technical solution of this utility model are:

[0014] This utility model provides an ultra-black photovoltaic module with black baffles having several openings on the string strips and busbars to cover the gaps between the cells, achieving a completely black encapsulation. The panel surface presents a deep black color, which can be perfectly integrated with various environments and is suitable for high-end building integration, landscape facilities and other fields. The black frame is flush with the upper surface of the front glass, and the adhesive seam is also black, further improving the consistency and aesthetics of the front of the photovoltaic module, and also facilitating front drainage and preventing water accumulation in the grooves. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0019] In the diagram: 1: Battery cell; 2: Stringing strip; 3: Busbar; 4: Encapsulation film; 5: Front glass; 6: Black backplate; 7: Black frame; 7a: Upper wing plate; 7b: Web plate; 7c: Lower wing plate; 8: Black baffle; 8a: Opening; 9: Frame encapsulation adhesive. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention. The present invention is described in detail using structural schematic diagrams, etc., which are merely examples and should not be construed as limiting the scope of protection of the present invention.

[0021] Please see Figures 1-3 An ultra-black photovoltaic module includes several uniformly arranged solar cells 1 with gaps between adjacent solar cells 1. The solar cells 1 are connected into several columns of solar cells by stringing ribbons 2. The same end of all columns of solar cells is connected to a busbar 3. A front glass 5 is connected to the top of the solar cells 1 by a layer of encapsulating film 4. Since there are gaps between adjacent solar cells 1 and between solar cells 1 and the frame 7, a black baffle 8 with several openings 8a is provided on the stringing ribbons 2 and the busbar 3 to achieve black encapsulation. The black baffle 8 with a thickness of 20-500μm is easier to assemble than traditional black films. The openings 8a are set one-to-one with the positions of the solar cells 1. The solar cells 1 are embedded in the openings 8a. The upper surface of the solar cells 1 is not lower than the upper surface of the black baffle 8, so it will not affect the power generation efficiency.

[0022] Beneath the solar cell 1, a black backplate 6 of the same thickness as the front glass 5 is connected via an encapsulating film 4. The thickness ranges from 4 to 12 mm. The black backplate 6 is made of a polymer material, possessing excellent insulation and weather resistance. A black frame 7 surrounds the edges of the front glass 5 and the black backplate 6. The surface of the black frame 7 is coated with a black resin film layer, which is one of polyurethane resin, acrylic resin, and polybutadiene resin. The black frame 7 is flush with the upper surface of the front glass 5, further enhancing the uniformity and aesthetics of the front of the photovoltaic module and facilitating drainage, preventing water accumulation in the trenches.

[0023] The gap between the front glass 5 and the black backplate 6 and the black frame 7 is filled with frame encapsulating adhesive 9, completely isolating the external environment from the internal components. The frame encapsulating adhesive 8 contains black powder particles, so the adhesive seam is also black, preventing any discoloration. The black frame 7 includes an upper wing plate 7a, a web plate 7b, and a lower wing plate 7c connected sequentially from top to bottom. The upper wing plate 7a and the lower wing plate 7c are located on the same side of the web plate 7b, as detailed below. Figure 3 As shown, the upper wing plate 7a and the front glass 5 are adjacent to each other and are beveled. The upper surface edge of the front glass 5 is provided with a beveled chamfer. The beveled chamfer is connected to the lower surface of the upper wing plate 7a by a layer of frame sealing adhesive 9. The web plate 7b or the lower wing plate 7c is provided with mounting holes to facilitate the installation and fixing of photovoltaic modules.

[0024] In addition, busbar 3 is connected to the photovoltaic junction box located outside the module through a conductor. The photovoltaic junction box is used to connect the photovoltaic module and the external circuit. The junction box adopts a waterproof and dustproof design to ensure the safe and reliable operation of the photovoltaic module. The junction box is equipped with protective components such as diodes to prevent the photovoltaic module from being damaged by reverse current.

[0025] This utility model presents an ultra-black photovoltaic module with high color uniformity. It is equipped with a black module frame 7, back panel 6, baffle 8, etc. to ensure that the module maintains a high degree of stability and consistency in color tone and uniformity. The all-black appearance and the deep black surface of the panel form a clear contrast with the appearance of traditional solar modules. It can be perfectly integrated with various environments and is suitable for high-end building integration, landscape facilities and other fields, providing a unique aesthetic design solution for rooftop photovoltaic systems.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. It should be noted that for those skilled in the art, any changes, modifications or additions made without departing from the concept of the present utility model should fall within the protection scope of the present utility model.

Claims

1. An ultra-black photovoltaic module, characterized in that: The device includes several uniformly arranged battery cells (1), with gaps between adjacent battery cells (1). The battery cells (1) are connected to form several battery strings by a series welding strip (2). The same end of all battery strings is connected to a busbar (3). A front glass (5) is connected to the top of the battery cell (1) by a layer of encapsulating film (4). A black baffle (8) with several openings (8a) is provided on the series welding strip (2) and the busbar (3). The openings (8a) correspond one-to-one with the positions of the battery cells (1). A black back plate (6) is connected to the bottom of the battery cell (1) by a layer of encapsulating film (4). A black frame (7) is provided around the edges of the front glass (5) and the black back plate (6). The black frame (7) is flush with the upper surface of the front glass (5).

2. The ultra-black photovoltaic module according to claim 1, characterized in that: The gap between the front glass (5) and the black back plate (6) and the black frame (7) is filled with frame sealing glue (9). The black frame (7) includes an upper wing plate (7a), a belly plate (7b) and a lower wing plate (7c) connected from top to bottom. The surface of the upper wing plate (7a) that is close to the front glass (5) is a bevel. The upper surface edge of the front glass (5) is provided with a beveled chamfer.

3. The ultra-black photovoltaic module according to claim 1, characterized in that: The battery cell (1) is embedded in the opening (8a), and the upper surface of the battery cell (1) is not lower than the upper surface of the black baffle (8).

4. The ultra-black photovoltaic module according to claim 3, characterized in that: The thickness of the black baffle (8) is 20-500 μm.

5. The ultra-black photovoltaic module according to claim 1, characterized in that: The front glass (5) and the black back panel (6) are of equal thickness.

6. The ultra-black photovoltaic module according to claim 1, characterized in that: The surface of the black border (7) is coated with a black resin film.

7. The ultra-black photovoltaic module according to claim 2, characterized in that: The upper wing plate (7a) and the lower wing plate (7c) are located on the same side of the web plate (7b), and the chamfered edge is connected to the lower surface of the upper wing plate (7a) by a layer of frame sealing adhesive (9).

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