CN218414602U

CN218414602U - Photovoltaic curtain wall assembly

Info

Publication number: CN218414602U
Application number: CN202222642614.2U
Authority: CN
Inventors: 陶春华; 方能; 肖鹏军; 王娟; 杨森; 李波; 尹家祥
Original assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Haining Co Ltd
Current assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Haining Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-31
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a photovoltaic curtain wall assembly, include: the photovoltaic cell packaging structure comprises a front cover plate, a front plate packaging layer, a photovoltaic cell sheet layer, a back plate packaging layer and a back cover plate which are sequentially arranged, wherein a pattern layer is arranged on one side of the front cover plate close to the back cover plate, the thickness of the pattern layer is 15-45 mu m along a first direction, and the first direction is the direction from the front cover plate to the back cover plate; the thickness of the front cover plate is 2-20mm, and the thickness of the rear cover plate is 0.5-20mm. Through be equipped with the pattern layer in the one side that the front shroud is close to the back shroud, realize the combination of photovoltaic module and stone material, brick and tile and sheet metal pattern, make it compromise power generation performance and performance for the building, not only realize high-efficient electricity generation, and the stable performance, safe and reliable.

Description

Photovoltaic curtain wall assembly

Technical Field

The utility model relates to a photovoltaic field, more specifically relates to a photovoltaic curtain wall assembly.

Background

In order to respond to the national call for energy conservation and emission reduction, the nationwide provinces actively encourage and promote the application of green buildings in cities. In the building operation stage, the carbon emission of public buildings accounts for 8.1% of the carbon emission in China, so the building-integrated photovoltaic system becomes an important building energy-saving direction on the premise of targeting carbon neutralization.

The existing photovoltaic building integration is mainly applied to curtain walls, industrial and commercial roofs and building roofs. The photovoltaic curtain wall is an embodiment form of integrated application of photovoltaic buildings, namely, on the basis of the traditional curtain wall, a photovoltaic module is organically combined, so that the photovoltaic curtain wall has power generation capacity. Meanwhile, stone, bricks and metal plates are required to be used in the building, the area occupies a large area, and if the building also has power generation capacity, the available area of the building is increased, and the overall power generation capacity can be improved.

Therefore, it is desirable to provide a photovoltaic curtain wall assembly that combines power generation performance and architectural performance.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a photovoltaic curtain wall assembly, including front shroud, front bezel packaging layer, photovoltaic cell lamella, backplate packaging layer, the back shroud that arranges in proper order, be equipped with the pattern layer on one side that the front shroud is close to the back shroud, along the first direction, the thickness of pattern layer is 15-45 μm, the first direction is the direction that the front shroud points to the back shroud; the thickness of the front cover plate is 2-20mm, and the thickness of the rear cover plate is 0.5-20mm.

Optionally, the pattern of the pattern layer is a pattern of an imitation stone, a tile or a metal plate, the pattern layer includes a plurality of pattern sub-layers, and the plurality of pattern sub-layers are sequentially stacked.

Optionally, the pattern layer is configured as a screen printing layer, a roll printing layer, a 3D printing layer, or an inkjet printing layer.

Optionally, the thickness of the front plate packaging layer and the back plate packaging layer is 0.76-1.14mm.

Optionally, the photovoltaic cell sheet layer includes a plurality of black cells arranged in an array, and adjacent black cells are electrically connected through a black solder strip.

Optionally, the photovoltaic cell layer includes a crystalline silicon cell, a cadmium telluride cell, a copper indium gallium selenide cell, or a perovskite cell.

Optionally, the rear cover plate is made of black glazed glass, a black polyvinyl fluoride composite material or a black polyvinylidene fluoride composite material.

Optionally, when the material of the rear cover plate is glass, the thickness of the rear cover plate is 2-20mm.

Optionally, when the rear cover plate is made of a back plate, the thickness of the rear cover plate is 0.5-2mm.

Optionally, the photovoltaic cell packaging structure further comprises a first packaging layer and a first glass layer, wherein the first packaging layer is located on one side, close to the backboard packaging layer, of the photovoltaic cell sheet layer, and the first glass layer is located on the side, close to the backboard packaging layer, of the first packaging layer.

Compared with the prior art, the utility model provides a photovoltaic curtain wall assembly has realized following beneficial effect at least:

the utility model provides a pair of photovoltaic curtain wall assembly, include: the photovoltaic cell packaging structure comprises a front cover plate, a front plate packaging layer, a photovoltaic cell sheet layer, a back plate packaging layer and a back cover plate which are sequentially arranged, wherein a pattern layer is arranged on one side of the front cover plate close to the back cover plate, the thickness of the pattern layer is 15-45 mu m along a first direction, and the first direction is the direction from the front cover plate to the back cover plate; the thickness of the front cover plate is 2-20mm, and the thickness of the rear cover plate is 0.5-20mm. Through be equipped with the pattern layer in the one side that the front shroud is close to the back shroud, realize the combination of photovoltaic module and stone material, brick and tile and sheet metal pattern, make it compromise power generation performance and performance for the building, not only realize high-efficient electricity generation, and the stable performance, safe and reliable.

Of course, it is not necessary for any product of the present invention to achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a structural diagram of a photovoltaic curtain wall provided by the present invention;

fig. 2 is another structural diagram of a photovoltaic curtain wall provided by the present invention;

the solar cell module comprises a front cover plate 1, a front plate packaging layer 2, a photovoltaic cell sheet layer 3, a back plate packaging layer 4, a back cover plate 5, a first packaging layer 6, a first glass layer 7, a pattern layer 11 and an X-first direction.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Referring to fig. 1, a specific embodiment of the photovoltaic curtain wall assembly provided by the present invention is illustrated, including: the photovoltaic cell comprises a front cover plate 1, a front plate packaging layer 2, a photovoltaic cell sheet layer 3, a back plate packaging layer 4 and a back cover plate 5 which are sequentially arranged, wherein a pattern layer 11 is arranged on one side, close to the back cover plate 5, of the front cover plate 1, the thickness of the pattern layer 11 is 15-45 mu m in a first direction X, and the first direction X is the direction of the front cover plate 1 pointing to the back cover plate 5; the thickness of the front cover plate 1 is 2-20mm, and the thickness of the rear cover plate 5 is 0.5-20mm.

Alternatively, the thickness of the pattern layer 11 is 15, 17, 19, 20, 22, 23, 25, 27, 29, 30, 32, 34, 35, 27, 39, 40, 42, 44 or 45 μm, the thickness of the front cover plate 1 is 2,3,4,5,6,7,8,9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20mm, and the thickness of the rear cover plate 5 is 0.5,1,1.5,2,3,4,5,6,7,8,9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20mm.

It can be understood that when the thickness of the pattern layer 11 is less than 15 μm, the pattern is unclear, and the material waste is caused when the thickness is greater than 45 μm, so that the pattern layer 11 with the thickness of 15-45 μm can meet the requirement of pattern clarity, and the material waste is not caused; the front cover plate 1 is made of transparent glass, when the thickness is smaller than 2mm, the mechanical strength of the glass cannot meet the mechanical load requirement of the assembly, and when the thickness is larger than 20mm, the overall thickness and light transmittance of the assembly are influenced, so that the thickness of the front cover plate 1 is 2-20mm, the mechanical load requirement of the assembly can be met, and the light transmittance cannot be reduced; similarly, when the rear cover plate 5 is made of glass material, the thickness is 2-20mm, which is equal to that of the front cover plate 1, when the rear cover plate 5 is made of backboard, the thickness is 0.5-2mm, when the thickness is less than 0.5mm, the water impermeability of the assembly can not be enhanced, the back of the assembly is well sealed and protected, when the thickness is more than 2mm, the material waste can be caused, and the thickness of the rear cover plate 5 is 0.5-20mm.

Through be equipped with pattern layer 11 in the one side that front shroud 1 is close to rear shroud 5, realize the combination of photovoltaic module and stone material, brick and tile and sheet metal pattern, make it compromise power generation performance and performance for the building, not only realize high-efficient electricity generation, and the stable performance, safe and reliable.

In some alternative embodiments, with continued reference to fig. 1, the pattern of the pattern layer 11 is a pattern of a simulated stone, a tile or a metal plate, and the pattern layer 11 includes a plurality of pattern sub-layers, which are sequentially stacked.

The pattern layer 11 is printed with different colors of stone materials, tiles and metal plates, so that the front cover plate 1 has similar appearance, and a plurality of pattern sub-layers are sequentially stacked according to the color system and the pattern characteristics of natural stone materials and different metal colors, so that the visual angle of the photovoltaic curtain wall on the front side (one side of the front cover plate) presents three-dimensional sense.

In some alternative embodiments, with continued reference to fig. 1, the pattern layer 11 is provided as a screen printed layer, a roll printed layer, a 3D printed layer, or an inkjet printed layer.

Optionally, the pattern layer 11 may be configured as a screen printing layer, a roll printing layer, a 3D printing layer, or an inkjet printing layer, so that the front cover plate 1 has an appearance of imitation stone, imitation brick, or imitation metal plate. The utility model discloses do not do specifically and restrict the method that forms pattern layer 11, can be the screen printing layer that forms through screen printing's mode, also can be the roll-in printing layer that forms through the mode of roll-in, also can print the 3D who forms through 3D and print the layer, can also be the inkjet that forms through inkjet printing's mode and print the layer.

In some alternative embodiments, with continued reference to FIG. 1, the front sheet encapsulant layer 2 and the back sheet encapsulant layer 4 are 0.76-1.14mm thick.

Optionally, the thickness of the front plate encapsulation layer 2 and the back plate encapsulation layer 4 is 0.76,0.85,0.95,1.04 or 1.14mm.

The front plate packaging layer 2 and the back plate packaging layer 4 are transparent adhesive films and are made of any one of ethylene-vinyl acetate copolymer (EVA), ethylene-octene copolymer (POE) and polyvinyl butyral (PVB), when the thickness of the adhesive films is smaller than 0.76mm, the adhesive films are too thin and are easy to cause degumming in the laminating process, the thickness of the adhesive films is larger than 1.14mm, and the adhesive films are too thick and are easy to cause displacement of battery pieces, so that the thicknesses of the front plate packaging layer 2 and the back plate packaging layer 4 are 0.76-1.14mm, and the effects of packaging, bonding and protecting the photovoltaic battery layer 3 are met.

In some alternative embodiments, with continued reference to fig. 1, the photovoltaic cell sheet 3 includes a plurality of black cells arranged in an array, with adjacent black cells being electrically connected by black solder ribbons. The black light absorption is good, the utilization rate of the black battery to sunlight is improved, and the efficiency of the battery is improved.

In some alternative embodiments, with continued reference to fig. 1, the photovoltaic cell layer 3 comprises a crystalline silicon cell, a cadmium telluride cell, a copper indium gallium selenide cell, or a perovskite cell.

Optionally, the crystalline silicon cell has low cost and high photoelectric conversion efficiency; the cadmium telluride cell and the copper indium gallium selenide cell are thin film cells, the power loss is less under the same shielding area, namely the power generation performance under the condition of weak light is better; the perovskite cell mainly has high light absorption coefficient and light transmittance and can be laminated. The photovoltaic cell layer 3 is used for power generation, and has high light absorption rate, high conversion efficiency and stable performance.

In some optional embodiments, with continued reference to fig. 1, the back cover plate 5 is black glazed glass, a black polyvinyl fluoride composite material or a black polyvinylidene fluoride composite material, the glazed glass has high impact strength, the polyvinyl fluoride composite material or the polyvinylidene fluoride composite material enhances the water impermeability of the assembly, has a good sealing protection effect on the back of the assembly, improves the insulating property of the assembly, can play a role in protecting and supporting the photovoltaic cell layer 3, and prolongs the service life of the assembly; the color of the material of the rear cover plate 5 is black, so that the color effect and the stereoscopic impression of the pattern layer 11 can be better supported.

In some alternative embodiments, with continued reference to FIG. 1, the back cover plate 5 is 2-20mm thick when the material is glass.

Optionally, the thickness of the back cover plate 5 is 2,3,4,5,6,7,8,9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20mm.

It can be understood that, when the material of the back cover plate 5 is glass, the thickness of the back cover plate is equal to that of the front cover plate 1, when the thickness of the back cover plate 5 is less than 2mm, the mechanical strength of the glass cannot meet the mechanical load requirement of the assembly, when the thickness is greater than 20mm, the overall thickness of the assembly is affected, and the material is wasted, so that when the material of the back cover plate 5 is glass, the thickness is 2-20mm, the back cover plate 5 plays a role in protecting and supporting the photovoltaic cell layer 3, and the service life of the assembly is prolonged.

In some alternative embodiments, with continued reference to FIG. 1, the back cover plate 5 is 0.5-2mm thick when the material of the back cover plate is a back plate.

Optionally, the thickness of the rear cover plate 5 is 0.5,1,1.5 or 2mm, when the thickness is less than 0.5mm, the water impermeability of the reinforced assembly cannot be met, a good sealing protection effect is achieved on the back of the assembly, and material waste can be caused when the thickness is greater than 2mm, so that when the rear cover plate 5 is made of a back plate, namely a polyvinyl fluoride composite material or a polyvinylidene fluoride composite material, the thickness of the rear cover plate is 0.5-2mm, the photovoltaic battery layer 3 is protected and supported, the water impermeability of the assembly is enhanced, the good sealing protection effect is achieved on the back of the assembly, the service life of the assembly is prolonged, and the insulation performance of the assembly is improved.

In some optional embodiments, referring to fig. 2, the present invention provides a photovoltaic curtain wall assembly further comprising a first encapsulating layer 6 located on one side of the photovoltaic cell sheet layer 3 close to the back sheet encapsulating layer 4 and a first glass layer 7 located on the side of the first encapsulating layer 6 close to the back sheet encapsulating layer 4. First encapsulated layer 6 is the transparent adhesive film the same with front bezel encapsulated layer 2, and first glass layer 7 is the transparent glass the same with front shroud 1, and photovoltaic curtain wall subassembly sets up to 7 layers of structures, has increased subassembly bulk strength.

According to the above embodiment, the utility model provides a pair of photovoltaic curtain wall assembly has realized following beneficial effect at least:

the utility model provides a pair of photovoltaic curtain wall assembly, include: the photovoltaic cell packaging structure comprises a front cover plate 1, a front plate packaging layer 2, a photovoltaic cell sheet layer 3, a back plate packaging layer 4 and a back cover plate 5 which are sequentially arranged, wherein a pattern layer 11 is arranged on one side, close to the back cover plate 5, of the front cover plate 1, the thickness of the pattern layer 11 is 15-45 mu m along a first direction X, and the first direction X is the direction of the front cover plate 1 pointing to the back cover plate 5; the thickness of the front cover plate 1 is 2-20mm, and the thickness of the rear cover plate 5 is 0.5-20mm. Through be equipped with pattern layer 11 in the one side that front shroud 1 is close to rear shroud 5, realize the combination of photovoltaic module and stone material, brick and tile and sheet metal pattern, make it compromise power generation performance and performance for the building, not only realize high-efficient electricity generation, and the stable performance, safe and reliable.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A photovoltaic curtain wall assembly is characterized by comprising a front cover plate, a front plate packaging layer, a photovoltaic cell sheet layer, a back plate packaging layer and a rear cover plate which are sequentially arranged, wherein a pattern layer is arranged on one side, close to the rear cover plate, of the front cover plate, the thickness of the pattern layer is 15-45 mu m along a first direction, and the first direction is the direction in which the front cover plate points to the rear cover plate;

the thickness of the front cover plate is 2-20mm, and the thickness of the rear cover plate is 0.5-20mm.

2. The photovoltaic curtain wall assembly of claim 1, wherein the pattern of the pattern layer is a pattern of imitation stone, tiles or metal plates, the pattern layer comprises a plurality of pattern sub-layers, and the plurality of pattern sub-layers are sequentially stacked.

3. The photovoltaic curtain wall assembly of claim 1, wherein the pattern layer is provided as a screen printed layer, a roll printed layer, a 3D printed layer, or an ink jet printed layer.

4. The photovoltaic curtain wall assembly of claim 1, wherein the front and back sheet encapsulant layers are 0.76-1.14mm thick.

5. The photovoltaic curtain wall assembly of claim 1, wherein the photovoltaic cell sheet comprises a plurality of black cells arranged in an array, and adjacent black cells are electrically connected by black solder strips.

6. The photovoltaic curtain wall assembly of claim 1, wherein the photovoltaic cell layer comprises a crystalline silicon cell, a cadmium telluride cell, a copper indium gallium selenide cell, or a perovskite cell.

7. The photovoltaic curtain wall assembly of claim 1, wherein the back cover plate is black glazed glass, a black polyvinyl fluoride composite material or a black polyvinylidene fluoride composite material.

8. The photovoltaic curtain wall assembly of claim 7, wherein the back cover plate is 2-20mm thick when the material of the back cover plate is glass.

9. The photovoltaic curtain wall assembly of claim 7, wherein the thickness of the back cover plate is 0.5-2mm when the material of the back cover plate is a back plate.

10. The photovoltaic curtain wall assembly of claim 1, further comprising a first encapsulation layer positioned on a side of the photovoltaic cell sheet layer adjacent to the backplane encapsulation layer and a first glass layer positioned on the first encapsulation layer adjacent to the backplane encapsulation layer in sequence.