Moire-proof anti-dazzle photovoltaic glass and anti-dazzle photovoltaic module
By designing an irregular first pattern structure and a regular or irregular second pattern structure on the surface of photovoltaic module glass, the problems of moiré pattern phenomenon and difficulty in self-cleaning are solved, achieving the effects of anti-glare and high-efficiency photovoltaic modules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-10
AI Technical Summary
When existing photovoltaic modules have deep embossed patterns on their glass surfaces to reduce glare, moiré patterns are easily formed, causing visual interference and making self-cleaning difficult.
An irregular first pattern structure and a regular or irregular second pattern structure are designed on the glass surface of the photovoltaic module. The first pattern structure is composed of straight lines, vibration lines or wavy lines forming an irregular polygon, and the second pattern structure is composed of regular or irregular polygons or pyramid structures to reduce reflectivity and avoid regular stripes in light imaging.
It effectively reduces the reflectivity of the glass surface, alleviates moiré patterns, maintains high light transmittance, and improves the conversion efficiency of photovoltaic modules.
Smart Images
Figure CN223987330U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic module technical field, concretely relates to a kind of anti-moire anti-dazzle photovoltaic glass and anti-dazzle photovoltaic module. BACKGROUND
[0002] Photovoltaic technology is combined with curtain wall technology used in building to form photovoltaic curtain wall. In certain specific scenarios (such as airports, highways, etc.), due to the high requirement for anti-dazzle, the glass of conventional photovoltaic modules needs to be specially designed.
[0003] Currently, the market usually reduces the glare effect by deepening the depth of the embossed pattern of the surface glass of the photovoltaic module. However, due to the increased depth of the glass embossed pattern and the high reflection of the superposition of the battery layer grid lines and silver interconnection strips, moire patterns are easily formed, which causes serious visual interference and affects the demand for architectural aesthetics. In addition, the embossed pattern on the glass surface also has the problem of difficulty in self-cleaning of the module surface. UTILITY MODEL CONTENT
[0004] The utility model aims to solve the problem of moire patterns in photovoltaic modules by designing an anti-moire anti-dazzle photovoltaic glass.
[0005] To achieve the above-mentioned purpose, the utility model is realized by the following technical solutions:
[0006] The utility model provides an anti-moire anti-dazzle photovoltaic glass, which comprises:
[0007] a glass body having opposite light-entering and light-exiting surfaces;
[0008] a first pattern structure arranged on the light-entering surface of the glass body and configured as a recessed surface structure, the first pattern structure being formed by a plurality of first sub-patterns arranged in disorder;
[0009] and a second pattern structure arranged on the light-exiting surface of the glass body, the second pattern structure being configured as a regular or irregular pattern structure.
[0010] Further, an anti-moire anti-dazzle photovoltaic glass: a plurality of first sub-patterns are configured as the same or different.
[0011] Further, an anti-moire anti-dazzle photovoltaic glass: the first sub-patterns are configured as irregular polygonal structures.
[0012] Furthermore, an anti-glare photovoltaic glass with anti-moiré pattern: the first sub-pattern is an irregular polygonal structure formed by straight lines, vibration lines, wavy lines or bent lines.
[0013] Furthermore, an anti-glare photovoltaic glass with anti-moiré pattern: the maximum span of the first sub-pattern in both the horizontal and vertical directions is set to 50-1000 μm, and the recess depth of the first sub-pattern is set to 10-20 μm.
[0014] Furthermore, an anti-glare photovoltaic glass with anti-moiré pattern: the second pattern structure is formed by the orderly or disordered arrangement of several second sub-patterns, thereby forming a regular or irregular pattern structure.
[0015] Furthermore, an anti-glare photovoltaic glass with anti-moiré pattern: the second sub-pattern is set as a regular or irregular polygonal structure.
[0016] Furthermore, an anti-glare photovoltaic glass with anti-moiré pattern: the second sub-pattern is set as a regular pyramid structure, quadrilateral structure or hexagonal structure.
[0017] Furthermore, an anti-glare photovoltaic glass with anti-moiré pattern: the first pattern structure is disposed on the light-incident surface of the glass body and forms a recessed surface structure with a reflectivity of no more than 15%.
[0018] This utility model also provides an anti-glare photovoltaic module that prevents moiré patterns. The anti-glare photovoltaic module includes the aforementioned anti-glare photovoltaic glass, encapsulation film, battery layer, encapsulation film and back glass stacked sequentially from top to bottom.
[0019] This invention relates to an anti-moiré anti-glare photovoltaic glass. It utilizes an irregularly arranged recessed surface structure on the light-incident surface of the glass body, and a second pattern structure on the light-exit surface, consisting of regular or irregularly arranged patterns. The pattern on the light-incident surface (the first pattern structure) is a polygonal structure formed by straight lines, vibrating lines, wavy lines, or bent lines. Adjacent pattern structures vary in depth or around their four sides, or in the position of their top relative to their bottom. The irregular recesses of the first pattern structure effectively trap light, reducing the reflectivity of the glass surface. Simultaneously, the low-reflection, high-transmittance glass weakens the imaging effect of regular stripes on the glass, thereby mitigating the moiré effect.
[0020] The beneficial effects of this utility model are:
[0021] (1) This utility model obtains anti-glare photovoltaic glass by setting a first pattern structure and a second pattern structure with special structures on the light-incident surface and the light-outcident surface of the glass body respectively. Anti-glare photovoltaic modules are made using this anti-glare photovoltaic glass. Based on the surface structure optimization design of the anti-glare photovoltaic glass, the anti-glare photovoltaic modules made solve the problem of moiré pattern phenomenon that is easy to occur in existing photovoltaic modules. At the same time, the anti-glare photovoltaic glass can also maintain a high light transmittance, thereby ensuring the high conversion efficiency of the anti-glare photovoltaic modules.
[0022] (2) The anti-glare photovoltaic glass provided by this utility model can reduce the reflected light intensity of the light-incident surface of the glass body by arranging the first pattern structure on the light-incident surface of the glass body, thereby achieving the anti-glare effect. The unique arrangement design of the first pattern structure can also avoid the occurrence of moiré pattern phenomenon. Attached Figure Description
[0023] 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.
[0024] Fig. 1 A cross-sectional view of an anti-moiré anti-glare photovoltaic glass provided in Embodiment 1 of this utility model;
[0025] Fig. 2 This is a top view of the light-incident surface of the anti-glare photovoltaic glass in Example 1;
[0026] Fig. 3 This is a top view of the light-emitting surface of the anti-glare photovoltaic glass in Example 1;
[0027] Fig. 4 A layered schematic diagram of an anti-moiré anti-glare photovoltaic module provided in Embodiment 4 of this utility model;
[0028] Fig. 5 This is a top view of the light-incident surface of the anti-glare photovoltaic glass in Comparative Example 1;
[0029] Fig. 6 Layer diagram of an anti-moiré anti-glare photovoltaic module provided for Comparative Example 2.
[0030] The markings in the diagram are: 1-glass body, 2-first pattern structure, 3-second pattern structure, 21-first sub-pattern, 31-second sub-pattern. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.
[0033] Example 1
[0034] like Figs. 1-3 As shown, this embodiment 1 provides an anti-glare photovoltaic glass with anti-moiré pattern, which includes:
[0035] The glass body 1 has a light-incident surface and a light-exit surface that are opposite each other;
[0036] The first pattern structure 2 is disposed on the light-incident surface of the glass body 1 and forms a recessed surface structure with a reflectivity of no more than 15%. The first pattern structure 2 is formed by a random arrangement of several first sub-patterns 21 with different structures. The several first sub-patterns 21 with different structures are an irregular polygonal structure enclosed by straight lines, vibration lines, wavy lines or bent lines. The maximum horizontal and vertical span of the first sub-pattern 21 is set to 50-1000 μm, and the recess depth of the first sub-pattern 21 is set to 10-20 μm.
[0037] And a second pattern structure 3, which is disposed on the light-emitting surface of the glass body 1. The second pattern structure 3 is formed by a plurality of second sub-patterns 31 arranged in an orderly manner, thereby forming a regular pattern structure; wherein, the second sub-patterns 31 are set as a regular pyramid structure.
[0038] The anti-glare photovoltaic glass of Example 1 exhibits a maximum reflectivity of no more than 30,000 cd / m² under sunlight with a brightness of 100,000 lux and a viewing angle of 60°. 2 This indicates that the optimized design of the first pattern structure 2 and the second pattern structure 3 of this utility model can ensure that the reflectivity of the anti-glare photovoltaic glass does not exceed 15%. The concave structure on the surface of the anti-glare photovoltaic glass designed in this utility model can play a certain role in trapping light, and can effectively reduce reflectivity while increasing transmittance, thereby achieving the best anti-glare effect.
[0039] Example 2
[0040] This embodiment 2 provides an anti-glare photovoltaic glass with anti-moiré pattern. The difference between embodiment 2 and embodiment 1 is that the second sub-pattern 31 in the anti-glare photovoltaic glass of embodiment 2 is set as a regular quadrilateral structure.
[0041] Example 3
[0042] This embodiment 3 provides an anti-glare photovoltaic glass with anti-moiré pattern. The difference between embodiment 3 and embodiment 1 is that the second sub-pattern 31 in the anti-glare photovoltaic glass of embodiment 3 is set as a regular hexagonal structure.
[0043] Example 4
[0044] like Fig. 4 As shown, this embodiment 4 provides an anti-glare photovoltaic module with anti-moiré pattern. The anti-glare photovoltaic module includes the anti-glare photovoltaic glass, encapsulation film, battery layer, encapsulation film and back glass provided in embodiment 1, which are stacked from top to bottom.
[0045] After adopting the anti-glare photovoltaic glass with anti-moiré pattern provided in Example 1, the anti-glare photovoltaic module of Example 4 increases the diffuse reflection effect. At the same time, the pits on its light-incident surface can play a certain role in trapping light, thereby increasing the light transmittance while effectively reducing the reflectivity, achieving the best anti-glare effect. Furthermore, the low-reflection and high-transmittance photovoltaic glass can also weaken the imaging effect of regular stripes on this glass, thereby reducing the moiré pattern phenomenon. Meanwhile, the special structural design of the recessed pattern on the light-incident surface (first pattern structure 2) can avoid the formation of periodicity of spatial modulation frequency, thus avoiding the formation of moiré pattern phenomenon.
[0046] Comparative Example 1
[0047] like Fig. 5As shown, Comparative Example 1 also provides an anti-glare photovoltaic glass with anti-moiré pattern. The anti-glare photovoltaic glass of Comparative Example 1 has a regular embossed structure on the light-incident surface of the glass body 1, and no pattern structure on its light-emitting surface.
[0048] Comparative Example 2
[0049] like Fig. 6 As shown, Comparative Example 2 also provides an anti-glare photovoltaic module with anti-moiré pattern. The anti-glare photovoltaic module includes the anti-glare photovoltaic glass, encapsulation film, battery layer, encapsulation film and back glass provided in Comparative Example 1, which are stacked from top to bottom.
[0050] In Comparative Example 2, the spatial modulation frequencies of the reflected light 1 and the reflected light 2 of this anti-glare photovoltaic module are close and have an optical path difference. Therefore, the superposition of the reflected light 1 and the reflected light 2 easily forms a moiré pattern.
[0051] The above-described preferred embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of this utility model. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. Anti-moire anti-glare photovoltaic glass, characterized in that, The anti-glare photovoltaic glass comprises: a glass body (1) having opposite light-incoming and light-outgoing surfaces; a first pattern structure (2) arranged on the light-incoming surface of the glass body (1) and configured as a concave surface structure, the first pattern structure (2) being formed by a plurality of first sub-patterns (21) arranged in disorder; and a second pattern structure (3) arranged on the light-outgoing surface of the glass body (1), the second pattern structure (3) being configured as a regular or irregular pattern structure.
2. The anti-moire, anti-glare photovoltaic glass according to claim 1, wherein, The plurality of first sub-patterns (21) are configured to be the same or different.
3. Anti-moire, anti-glare photovoltaic glass according to claim 1 or 2, characterized in that, The first sub-patterns (21) are configured as irregular polygonal structures.
4. Anti-moire and anti-glare photovoltaic glass according to any one of claims 1 to 3, characterized in that, The first sub-patterns (21) are irregular polygonal structures enclosed by straight lines, wavy lines, undulating lines or bent lines.
5. Anti-moire and anti-glare photovoltaic glass according to any one of claims 1 to 4, characterized in that, The maximum span of the first sub-patterns (21) in the horizontal and vertical directions is configured to be 50-1000 μm, and the depth of the concave structure of the first sub-patterns (21) is configured to be 10-20 μm.
6. The anti-moire, anti-glare photovoltaic glass of claim 1, wherein, The second pattern structure (3) is formed by a plurality of second sub-patterns (31) arranged in order or disorder, thereby forming a regular or irregular pattern structure.
7. The anti-moire, anti-glare photovoltaic glass according to claim 6, characterized in that, The second sub-patterns (31) are configured as regular or irregular polygonal structures.
8. The anti-moire, anti-glare photovoltaic glass according to claim 7, characterized in that, The second sub-patterns (31) are configured as regular pyramid structures, quadrangular structures or hexagonal structures.
9. The anti-moire, anti-glare photovoltaic glass of claim 1, wherein, The first pattern structure (2) is arranged on the light-incoming surface of the glass body (1) and configured as a concave surface structure with a reflectivity of not more than 15%.
10. A moire resistant anti-glare photovoltaic module, characterized by, The anti-glare photovoltaic assembly comprises, from top to bottom, the anti-glare photovoltaic glass according to any one of claims 1-9, an encapsulating adhesive film, a cell layer, an encapsulating adhesive film and a back glass.