CN219738968U - Front glass of photovoltaic module and photovoltaic module - Google Patents
Front glass of photovoltaic module and photovoltaic module Download PDFInfo
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- CN219738968U CN219738968U CN202320824096.8U CN202320824096U CN219738968U CN 219738968 U CN219738968 U CN 219738968U CN 202320824096 U CN202320824096 U CN 202320824096U CN 219738968 U CN219738968 U CN 219738968U
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- glass
- dark
- photovoltaic module
- glass substrate
- dark glass
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- 239000011521 glass Substances 0.000 title claims abstract description 168
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 239000002313 adhesive film Substances 0.000 claims description 29
- 239000003292 glue Substances 0.000 claims description 5
- 239000012943 hotmelt Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 abstract description 8
- 230000007062 hydrolysis Effects 0.000 abstract description 4
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The disclosure provides a front glass of a photovoltaic module, which comprises a glass substrate (1), wherein the glass substrate (1) is colorless transparent glass; and dark glass (2); the dark glass (2) is spliced on the edge of the glass substrate (1), the outer surface of the dark glass (2) and the outer surface of the glass substrate (1) are coplanar, the inner surface of the dark glass (2) and the inner surface of the glass substrate (1) are coplanar, and the dark glass (2) can cover bus bars in the photovoltaic module. Through above-mentioned technical scheme, the front glass of photovoltaic module that this disclosure provided splices dark glass and glass substrate, makes two kinds of glass to it on the thickness direction, and front glass's tow sides surface is smooth, can closely laminate with the EVA glued membrane, increases the adhesive force of EVA glued membrane, effectively reduces the residual gas between EVA glued membrane and the front glass, can reduce the hydrolysis rate of EVA glued membrane, increases its life.
Description
Technical Field
The disclosure relates to the technical field of photovoltaic power generation, in particular to front glass of a photovoltaic module and an all-black photovoltaic module.
Background
In photovoltaic module production, according to the outward appearance difference, can divide into single glass subassembly, dual glass subassembly, full black subassembly, photovoltaic curtain wall module etc. generally, and full black subassembly production in-process, glass still is ordinary photovoltaic glass, this just leads to the busbar bending position to appear the subassembly and blurs and discolours, empty bubble of gluing, the condition such as black busbar falls the lacquer, on one hand influences the outward appearance pleasing to the eye, on the other hand when the subassembly works, can produce the delaminating etc. that leads to because of the bubble, black busbar compares ordinary busbar price simultaneously and is about 1 time higher, and repair the disability rate higher because of falling the lacquer reason in the production process, a large amount of material are extravagant, increase cost.
In the prior art, CN201921353554.4 (application number) provides a front plate for a black photovoltaic module, which includes a transparent substrate and a black coating adhered to the surface of the transparent substrate, the black coating being in a stripe shape for covering bus bars of the black photovoltaic module. This front bezel is although can cover the busbar to a certain extent, but this black coating relative surface is comparatively coarse and light-tight, glues gluey effect can be relatively poor to the EVA hot melt back, and the centre is uneven, can not see tiny bubble and remain, and it can not get rid of completely to lean on the laminator evacuation, after the subassembly experienced high temperature, contact remaining air, more produced the bubble easily, the hydrolysis rate of acceleration EVA reduces the life of subassembly, leads to the subassembly to scrap etc..
Disclosure of Invention
One technical problem to be solved by the present disclosure is: the black coating is easy to decolor, has a non-smooth surface, has a height difference with glass, and is easy to generate bubbles.
To solve the above technical problem, an aspect of an embodiment of the present disclosure provides a front glass of a photovoltaic module, including: a glass substrate, which is colorless transparent glass; and dark colored glass; the dark glass is spliced on the edge of the glass substrate, the outer surface of the dark glass is coplanar with the outer surface of the glass substrate, the inner surface of the dark glass is coplanar with the inner surface of the glass substrate, and the dark glass can cover bus bars in the photovoltaic module.
In some embodiments, the glass substrate is ultrawhite glass.
In some embodiments, the dark glass is a dark translucent glass.
In some embodiments, the glass substrate is hot-melt spliced with dark glass.
In some embodiments, the glass substrate is hot-melt spliced with dark glass.
The embodiment of the disclosure provides a photovoltaic module, which is characterized by comprising a front plate, a first adhesive film layer, a battery layer, a second adhesive film layer and a back plate, wherein the front plate, the first adhesive film layer, the battery layer, the second adhesive film layer and the back plate are sequentially laminated from bottom to top, the front plate is the front glass in any one of the technical contents, the battery layer comprises a plurality of battery strings and bus bars connected between two adjacent battery strings, and the bus bars are aligned with the dark glass one by one.
In some embodiments, the dark glass is elongated, the width of the dark glass is not less than the width of the bus bar, and the length of the dark glass is not less than the length of the bus bar.
In some embodiments, the width of the dark glass is 3-10mm greater than the width of the bus bar.
In some embodiments, the first adhesive film layer is a high-transmission EVA adhesive film.
In some embodiments, the second adhesive film layer is a high-cutoff EVA adhesive film.
Through above-mentioned technical scheme, the front glass of photovoltaic module that this disclosure provided splices dark glass and glass substrate, makes two kinds of glass to it on the thickness direction, and front glass's tow sides surface is smooth, can closely laminate with the EVA glued membrane, increases the adhesive force of EVA glued membrane, effectively reduces the residual gas between EVA glued membrane and the front glass, can reduce the hydrolysis rate of EVA glued membrane, increases its life.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic structural view of a front glass of a photovoltaic module disclosed in an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of an exploded structure of a photovoltaic module disclosed in an embodiment of this disclosure;
reference numerals illustrate:
1. a glass substrate; 2. dark colored glass; 3. a first adhesive film layer; 4. a battery layer; 5. a second adhesive film layer; 6. a back plate.
Detailed Description
Embodiments of the present disclosure are described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the disclosure and not to limit the scope of the disclosure, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.
The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.
In the description of the present disclosure, unless otherwise indicated, the meaning of "plurality" is greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like indicate an orientation or positional relationship merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present disclosure. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
Furthermore, the use of the terms first, second, and the like in this disclosure do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.
It should also be noted that, in the description of the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present disclosure may be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.
All terms used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.
In one aspect, the present disclosure provides a front glass for a photovoltaic module, comprising: a glass substrate 1, wherein the glass substrate 1 is colorless transparent glass; and dark glass 2; the dark glass 2 is spliced on the edge of the glass substrate 1, the outer surface of the dark glass 2 and the outer surface of the glass substrate 1 are coplanar, the inner surface of the dark glass 2 and the inner surface of the glass substrate 1 are coplanar, and the dark glass 2 can cover bus bars in the photovoltaic module.
As shown in fig. 1, the dark glass 2 cannot be decolored under long-time irradiation of the sun, the surfaces of the glass substrate 1 and the dark glass 2 are smooth, the thicknesses of the glass substrate 1 and the dark glass 2 are the same, the edge of the glass substrate 1 and the edge of the dark glass 2 are spliced, the inner surface and the outer surface of the spliced front glass are planes, the spliced front glass can be tightly attached to an EVA adhesive film, the adhesive force of the EVA adhesive film is increased, residual gas between the EVA adhesive film and the front glass is effectively reduced, the hydrolysis speed of the EVA adhesive film is reduced, and the service life of the EVA adhesive film is prolonged.
In some embodiments, the glass substrate 1 is ultrawhite glass.
As shown in fig. 1, the glass substrate 1 is made of super-white glass, which is also called colorless glass, high-transparency glass and low-iron glass, is the highest grade variety in glass products, and has the characteristics of low burst rate, high light transmittance and the like, the light transmittance of common float glass is 86%, and the light transmittance of the super-white glass can reach more than 92%, so that the super-white glass is more suitable for solar photovoltaic modules.
In some embodiments, the dark glass 2 is a dark translucent glass.
As shown in fig. 1, the dark glass 2 has a certain light transmittance on the premise of ensuring the bus bar is covered, so that a certain light source can penetrate into the glass, the power improvement of the photovoltaic module is facilitated, and gray black, ink color and the like can be selected for the color of the dark glass 2.
In some embodiments, the glass substrate 1 is hot melt spliced with the dark glass 2.
The edge to be spliced of the glass substrate 1 and the edge to be spliced of the dark glass 2 are heated and melted by the high-temperature spray gun, the edges to be spliced of the glass substrate 1 and the dark glass 2 are fully fused, the whole glass is heated after being spliced to achieve the effect of full fusion, the whole glass is pressed and formed according to the size requirement, the leftover materials are removed, and the two glasses are spliced into a whole glass, so that the glass is convenient to transport and install.
In some embodiments, the dark glass 2 is an opaque glass and the inner surface of the dark glass 2 is specular.
As shown in fig. 1, the dark glass 2 may also be opaque glass, where the inner surface of the dark glass 2 (i.e., the surface facing the bus bar) may be made into a mirror surface, and when sunlight irradiates the cell layer of the photovoltaic module, the surface of the cell layer may reflect part of the light, so that the part of the reflected light may be reflected to the cell layer again under the mirror effect of the dark glass 2, so that the dark glass 2 can not only ensure the covering of the bus bar, but also reflect a small part of the reflected light, and improve the power of the photovoltaic module.
Another aspect of the present disclosure provides a photovoltaic module, including a front plate, a first adhesive film layer 3, a battery layer 4, a second adhesive film layer 5 and a back plate 6, which are sequentially stacked from bottom to top, the front plate is a front glass in the above technical content, the battery layer 4 includes a plurality of battery strings and bus bars connected between two adjacent battery strings, and the bus bars are aligned with the dark glass 2 one by one.
As shown in fig. 2, the sequence from bottom to top is that of the photovoltaic module from outside to inside, that is, the front plate is the side facing the sunlight, the back plate 6 is the side facing away from the sunlight, in the present utility model, three bus bars are arranged on two sides and the middle of the battery layer 4, and then the dark glass 2 is located on two sides and the middle of the front glass, and the positions of the dark glass 2 and the bus bars are overlapped to cover the bus bars.
In some embodiments, the dark glass 2 is elongated, the width of the dark glass 2 is not less than the width of the bus bar, and the length of the dark glass 2 is not less than the length of the bus bar.
As shown in fig. 1, the dark glass 2 is configured to be long, so that the dark glass 2 is aligned and spliced with the glass substrate 1, meanwhile, the width of the dark glass 2 is not less than the width of the bus bar, the length of the dark glass 2 is not less than the length of the bus bar, and due to slight deviation in size in the process of installing the photovoltaic module, in order to ensure that the length of the dark glass 2 can completely cover the bus bar, the size of the dark glass 2 is greater than the size of the bus bar.
In some embodiments, the width of the dark glass 2 is 3-10mm greater than the width of the bus bar.
In order to increase the light transmission amount of the front glass as much as possible, the larger the size of the glass substrate 1, the larger the light transmission amount thereof, the length of the dark glass 2 is flush with the length of the glass substrate 1, and the width of the dark glass 2 is set to be 5mm larger than the width of the bus bar.
In some embodiments, the first adhesive film layer 3 is a high-permeability EVA adhesive film.
As shown in fig. 2, the first adhesive film layer 3 is disposed on the outer side of the battery layer 4, so that the battery layer 4 can absorb ultraviolet light better, and the first adhesive film layer 3 is a high-transparency EVA adhesive film, which has high transparency and can effectively improve the power generation efficiency of the photovoltaic module.
In some embodiments, the second adhesive film layer 5 is a high cut-off EVA adhesive film.
As shown in fig. 2, the second adhesive film layer 5 is disposed on the inner side of the battery layer 4, and the second adhesive film layer 5 is made of a high-cut EVA adhesive film, so that ultraviolet light irradiated on the battery layer 4 can be reflected back to the battery layer 4 for secondary use, the power generation efficiency of the photovoltaic module can be further improved, meanwhile, the optical fiber can be effectively blocked, ultraviolet light is prevented from directly irradiating on the back plate 6, and the back plate 6 is prevented from yellowing to accelerate the aging speed, so that the quality of the module is affected.
Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.
Claims (10)
1. A front glass of a photovoltaic module, comprising:
a glass substrate (1), wherein the glass substrate (1) is colorless transparent glass; and
dark glass (2); the dark glass (2) is spliced on the edge of the glass substrate (1), the outer surface of the dark glass (2) and the outer surface of the glass substrate (1) are coplanar, the inner surface of the dark glass (2) and the inner surface of the glass substrate (1) are coplanar, and the dark glass (2) can cover bus bars in the photovoltaic module.
2. The front glass of a photovoltaic module according to claim 1, characterized in that the glass substrate (1) is an ultrawhite glass.
3. The front glass of a photovoltaic module according to claim 1, characterized in that the dark glass (2) is a dark translucent glass.
4. The front glass of a photovoltaic module according to claim 1, characterized in that the glass substrate (1) is hot-melt spliced with the dark glass (2).
5. The front glass of a photovoltaic module according to claim 1, characterized in that the dark glass (2) is an opaque glass, the inner surface of the dark glass (2) being a mirror.
6. The photovoltaic module is characterized by comprising a front plate, a first adhesive film layer (3), a battery layer (4), a second adhesive film layer (5) and a back plate (6) which are sequentially laminated from bottom to top, wherein the front plate is the front glass of any one of claims 1-5, the battery layer (4) comprises a plurality of battery strings and bus bars connected between two adjacent battery strings, and the bus bars are aligned with the dark glass (2) one by one.
7. The photovoltaic module according to claim 6, characterized in that the dark glass (2) is elongated, the width of the dark glass (2) is not smaller than the width of the bus bar, and the length of the dark glass (2) is not smaller than the length of the bus bar.
8. The photovoltaic module according to claim 7, characterized in that the width of the dark glass (2) is 3-10mm greater than the width of the bus bars.
9. The photovoltaic module according to claim 6, characterized in that the first glue film layer (3) is a high-transmission EVA glue film.
10. The photovoltaic module according to claim 6, characterized in that the second glue film layer (5) is a high-cut EVA glue film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320824096.8U CN219738968U (en) | 2023-04-10 | 2023-04-10 | Front glass of photovoltaic module and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320824096.8U CN219738968U (en) | 2023-04-10 | 2023-04-10 | Front glass of photovoltaic module and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219738968U true CN219738968U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320824096.8U Active CN219738968U (en) | 2023-04-10 | 2023-04-10 | Front glass of photovoltaic module and photovoltaic module |
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| CN (1) | CN219738968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117577712A (en) * | 2023-11-28 | 2024-02-20 | 无锡博而远智能装备有限公司 | Edge EVA laying machine based on vision correction technology |
-
2023
- 2023-04-10 CN CN202320824096.8U patent/CN219738968U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117577712A (en) * | 2023-11-28 | 2024-02-20 | 无锡博而远智能装备有限公司 | Edge EVA laying machine based on vision correction technology |
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