Photovoltaic glass, photovoltaic module and photovoltaic system

Abstract

The embodiment of the utility model provides photovoltaic glass, a photovoltaic assembly and a photovoltaic system. The photovoltaic glass comprises a first side surface for light incidence and a second side surface opposite to the first side surface; a first corrugated structure and a second corrugated structure which are alternately connected in the first direction are arranged on the first side face, and the first corrugated structure comprises first convex units and first concave units which are alternately connected in the second direction; the second corrugated structure comprises second concave units and second convex units which are alternately connected in the second direction, and the second direction intersects with the first direction. In the first direction, the first convex unit is opposite to the second concave unit, and the first concave unit is opposite to the second convex unit. The anti-dazzle LED lamp has the dust-proof and anti-dazzle capabilities.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic glass, a photovoltaic component and a photovoltaic system. Background Art

[0002] Because the air contains particles such as haze and sand, it is easy for a layer of dust to form on the surface of photovoltaic modules. The dust coverage will affect the light transmittance of the panel, reduce the solar irradiance received by the photovoltaic modules, and is not conducive to the heat dissipation of the photovoltaic modules. In addition, the uneven distribution of dust accumulation may cause hot spot effects on photovoltaic modules, or even damage photovoltaic modules.

[0003] In addition, with the popularization and promotion of photovoltaic power generation, more and more customers prefer anti-glare components. Existing anti-glare components use anti-glare glass, and the pattern of anti-glare glass is mostly four-corner embossing or hexagonal embossing, and the overall structure is a concave structure, which makes the anti-glare component have a certain anti-glare ability. However, the concave structure on the anti-glare glass is more prone to dust accumulation.

[0004] Most of the existing measures to prevent dust accumulation on photovoltaic modules are to coat the glass surface with a self-cleaning film layer, which uses the super-hydrophilic or super-hydrophobic properties to remove surface impurities and pollutants during the flow of water droplets, thereby reducing the impact of dust on the modules. However, the coating of the self-cleaning film layer is generally a post-processing process, and the film layer has poor adhesion, poor wear resistance, a short service life, and excessively high economic costs. Utility Model Content

[0005] In view of the above problems, embodiments of the present utility model are proposed to provide a photovoltaic glass, a photovoltaic component and a photovoltaic system that overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above problems, the embodiment of the utility model discloses a photovoltaic glass, comprising: a first side surface for incident light and a second side surface opposite to the first side surface; wherein:

[0007] The first side surface is provided with a first corrugated structure and a second corrugated structure alternately connected along a first direction, wherein the first corrugated structure includes a first convex unit and a first concave unit alternately connected along a second direction;

[0008] The second corrugated structure comprises second concave units and second convex units alternately connected along a second direction, and the second direction intersects the first direction;

[0009] Along the first direction, the first convex unit is opposite to the second concave unit, and the first concave unit is opposite to the second convex unit.

[0010] Optionally, in the first direction, two of the second corrugated structures adjacent to the first corrugated structure are respectively a first target corrugated structure and a second target corrugated structure, and two of the first corrugated structures adjacent to the second corrugated structure are respectively a third target corrugated structure and a fourth target corrugated structure;

[0011] In the first direction, the top of one end of the first convex unit is connected to the bottom of the second concave unit of the first target corrugated structure, and the top of the other end is higher than the bottom of the second concave unit of the second target corrugated structure; the top of one end of the second convex unit is connected to the bottom of the first concave unit of the third target corrugated structure, and the top of the other end is higher than the bottom of the first concave unit of the fourth target corrugated structure.

[0012] Optionally, in the first direction, a line connecting the highest points at both ends of the first convex unit forms a first wave crest, a line connecting the lowest points at both ends of the first concave unit forms a first wave trough, and the first wave crest and the first wave trough are alternately arranged along the second direction;

[0013] In the first direction, a line connecting the highest points at both ends of the second convex unit forms a second wave crest, a line connecting the lowest points at both ends of the second concave unit forms a second wave valley, and the second wave valleys and the second wave crests are alternately arranged along the second direction;

[0014] Among them, multiple first wave valleys are coplanar, and the plane where multiple first wave valleys are located is a first plane; multiple second wave valleys are coplanar, and the plane where multiple second wave valleys are located is a second plane.

[0015] Optionally, the end of the first protrusion unit opposite to the second target corrugated structure has a first chamfered surface, and the end of the second protrusion unit opposite to the fourth target corrugated structure has a second chamfered surface;

[0016] The included angle between the first chamfered surface and the first plane is a first chamfered angle α1, and the included angle between the second chamfered surface and the second plane is a second chamfered angle α2.

[0017] Optionally, β1<α1<90°, β2<α2<90°; wherein, tanβ1=H1 / L1, tanβ2=H2 / L2, H1=H2, H1 is the vertical distance from the first wave crest to the first plane, H2 is the vertical distance from the second wave crest to the second plane, L1 is the width of the first corrugated structure in the first direction, and L2 is the width of the second corrugated structure in the first direction.

[0018] Optionally, the angle between the tangent line of the midpoint of the first corrugated structure along the third direction and the first plane is γ1, 5°<γ1<75°;

[0019] The angle between the tangent line of the midpoint of the second corrugated structure in the third direction and the second plane is γ2, 5°<γ2<75°;

[0020] The third direction is perpendicular to the first plane, and the first plane is parallel to the second plane.

[0021] Optionally, the shape of the outer convex surface of the first convex unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface;

[0022] The shape of the inner concave surface of the first concave unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface;

[0023] The shape of the outer convex surface of the second convex unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface;

[0024] The shape of the inner concave surface of the second concave unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface.

[0025] Optionally, the outer surface of the first corrugated structure forms a first cosine wave, and the first cosine wave satisfies y1=B1*cos(ω1*x1);

[0026] The outer surface of the second corrugated structure forms a second cosine wave, and the second cosine wave satisfies y2=B1*cos(ω1*x1+φ1);

[0027] Among them, B1=H1 / 2=H2 / 2, ω1=2π / A1=2π / A2, H1 is the vertical distance from the first wave peak to the first plane, A1 is the distance between two adjacent first wave peaks in the second direction, H2 is the vertical distance from the second wave peak to the second plane, A2 is the distance between two adjacent second wave peaks in the second direction, and φ1 is the phase difference between the first cosine wave and the second cosine wave.

[0028] Optionally, the first corrugated structure includes a first end and a second end opposite to each other along the first direction, the outer convex surface of the first convex unit forms a third cosine wave at the first end, and forms a fourth cosine wave at the second end; the inner concave surface of the first concave unit forms a fourth cosine wave at the first end, and forms a third cosine wave at the second end;

[0029] The second corrugated structure includes a third end and a fourth end opposite to each other along the first direction, the third end being connected to the second end; the outer convex surface of the second convex unit forms a third cosine wave at the third end, and forms a fourth cosine wave at the fourth end; the inner concave surface of the second concave unit forms a fourth cosine wave at the third end, and forms a third cosine wave at the fourth end;

[0030] The third cosine wave satisfies y3=B3*cos(ω3*x3), and the fourth cosine wave satisfies y4=B4*cos(ω4*x4), wherein B3=B4=H3 / 2=H4 / 2, ω3=2π / A3, ω4=2π / A4, H3 is the amplitude of the third cosine wave, A3 is the period of the third cosine wave, H4 is the amplitude of the fourth cosine wave, and A4 is the period of the fourth cosine wave.

[0031] Optionally, the outer convex surface of the first convex unit is a triangular prism surface, and the first concave unit is a V-shaped groove formed by two adjacent first convex units, and / or the outer convex surface of the second convex unit is a triangular prism surface, and the second concave unit is a V-shaped groove formed by two adjacent second convex units.

[0032] Optionally, the outer convex surface of the first convex unit is a first arc curved surface, and the inner concave surface of the first concave unit is a second arc curved surface, and / or the outer convex surface of the second convex unit is a first arc curved surface, and the inner concave surface of the second concave unit is a second arc curved surface;

[0033] The diameter of the first arc surface is equal to the diameter of the second arc surface.

[0034] Optionally, the outer convex surface of the first convex unit is a third arc curved surface, and the inner concave surface of the first concave unit is a fourth arc curved surface, and / or the outer convex surface of the second convex unit is a third arc curved surface, and the inner concave surface of the second concave unit is a fourth arc curved surface;

[0035] The diameter of the third circular arc surface is greater than or smaller than the diameter of the fourth circular arc surface.

[0036] Optionally, the width of the first corrugated structure in the first direction is 0.2-3.6 mm;

[0037] The width of the second corrugated structure in the first direction is 0.2-3.6 mm.

[0038] In a second aspect, an embodiment of the utility model discloses a photovoltaic module, comprising the photovoltaic glass, the front cover packaging film, the battery sheet, the rear packaging film and the rear cover stacked in sequence;

[0039] The second side surface of the photovoltaic glass is in contact with the front cover packaging film.

[0040] In a third aspect, an embodiment of the utility model discloses a photovoltaic system, including the above-mentioned photovoltaic assembly and photovoltaic mounting structure;

[0041] The photovoltaic assembly is mounted on the photovoltaic mounting structure by fasteners.

[0042] Optionally, the bottoms of the plurality of first recessed units are coplanar, and the plane where the bottoms of the plurality of first recessed units are located is a first plane; the bottoms of the plurality of second recessed units are coplanar, and the plane where the bottoms of the plurality of second recessed units are located is a second plane;

[0043] There is a preset angle between the first plane and the second side surface, and the second plane is parallel to the first plane;

[0044] The installation inclination angle of the photovoltaic installation structure is greater than the preset angle and less than 90 degrees;

[0045] Wherein, the first direction of the photovoltaic assembly is the same as the inclination direction of the photovoltaic installation structure.

[0046] The utility model embodiment includes the following advantages:

[0047] In an embodiment of the utility model, the first corrugated structure and the second corrugated structure are alternately connected along a first direction. Since the first corrugated structure includes a first convex unit and a first concave unit alternately connected, the second corrugated structure includes a second concave unit and a second convex unit alternately connected, and the first convex unit of the first corrugated structure is opposite to the second concave unit of the second corrugated structure, and the first concave unit of the first corrugated structure is opposite to the second convex unit of the second corrugated structure. In this way, when water flushes the first side surface of the photovoltaic glass, the water can flow along the upstream first concave unit into the downstream second concave unit and take away dust during the flow, thereby reducing the difficulty and cost of cleaning the photovoltaic glass. Moreover, a first groove can be formed between two adjacent first protrusion units, and a second groove can be formed between two adjacent second protrusion units. After the light enters the first side surface of the photovoltaic glass, the two side walls opposite to each other of the first groove can refract the light multiple times, and the two side walls opposite to each other of the second groove can refract the light multiple times, so that part of the light is absorbed and part of the light is reflected by the side walls of the first groove or the second groove. In this way, both the first corrugated structure and the second corrugated structure can refract and absorb the light, which can eliminate the influence of glare to a large extent, so that the anti-glare ability of the photovoltaic glass is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1This is a schematic diagram of the structure of a photovoltaic glass of the utility model;

[0049] Figure 2 It is a schematic diagram of a pattern structure on a photovoltaic glass of the utility model;

[0050] Figure 3 It is a side view of a pattern structure on a photovoltaic glass of the utility model;

[0051] Figure 4 It is a schematic diagram of a first corrugated structure of the utility model;

[0052] Figure 5 It is a side view of a first corrugated structure of the utility model;

[0053] Fig. 6A This is a schematic diagram of the structure of a first corrugated structure of the utility model without beveling;

[0054] Figure 6B This is a schematic diagram of a first corrugated structure of the utility model that is obliquely cut under extreme conditions;

[0055] Figure 6C This is a schematic diagram of a first corrugated structure of the utility model that is cut obliquely;

[0056] Figure 7 It is a structural schematic diagram of another photovoltaic glass of the utility model;

[0057] Figure 8 This utility model Figure 7 A top view of the photovoltaic glass in FIG.

[0058] Fig.9A It is a top view of a first corrugated structure of the utility model;

[0059] Fig. 9B The utility model Fig.9A A side view of the first corrugated structure at the first end;

[0060] Fig. 9C The utility model Fig.9A A side view of the first corrugated structure at the second end;

[0061] Fig.10 It is a structural schematic diagram of another first corrugated structure of the utility model;

[0062] Fig.11 This is a structural schematic diagram of another first corrugated structure of the utility model;

[0063] Fig.12 This is a structural schematic diagram of another first corrugated structure of the utility model;

[0064] Fig.13 This is a schematic diagram of the structure of a photovoltaic glass in an inclined position according to the utility model;

[0065] Fig.14 This is a schematic diagram of the arrangement of an optical element, a light source and a detector of the utility model;

[0066] Fig.15A It is one of the transmission detector images of the utility model;

[0067] Fig. 15B It is one of the reflection detector images of the utility model;

[0068] Fig. 15C This utility model Fig.15A Corresponding color map;

[0069] Fig.15D This utility model Fig. 15B Corresponding color map;

[0070] Fig.16A It is one of the transmission detector images of the utility model;

[0071] Fig. 16B It is one of the reflection detector images of the utility model;

[0072] Fig. 16C This utility model Fig.16A Corresponding color map;

[0073] Fig.16D This utility model Fig. 16B Corresponding color map;

[0074] Fig.17A It is one of the transmission detector images of the utility model;

[0075] Fig. 17B It is one of the reflection detector images of the utility model;

[0076] Fig. 17C This utility model Fig.17A Corresponding color map;

[0077] Fig.17D This utility model Fig. 17B Corresponding color map;

[0078] Fig.18A It is one of the transmission detector images of the utility model;

[0079] Fig.18B It is one of the reflection detector images of the utility model;

[0080] Fig.18C This utility model Fig.18A Corresponding color map;

[0081] Fig.18D This utility model Fig.18B Corresponding color map;

[0082] Fig.19A It is one of the transmission detector images of the utility model;

[0083] Fig.19B It is one of the reflection detector images of the utility model;

[0084] Fig.19C This utility model Fig.19A Corresponding color map;

[0085] Fig.19D This utility model Fig.19B Corresponding color map;

[0086] Fig. 20A It is one of the transmission detector images of the utility model;

[0087] Fig. 20B It is one of the reflection detector images of the utility model;

[0088] Fig. 20C This utility model Fig. 20A Corresponding color map;

[0089] Fig.20D This utility model Fig. 20B Corresponding color map.

[0090] Description of reference numerals:

[0091] 1-first corrugated structure, 11-first convex unit, 12-first concave unit, 2-second corrugated structure, 21-second convex unit, 22-second concave unit, 100-photovoltaic glass, 200-reflection detector, 300-transmission detector, 400-light source. DETAILED DESCRIPTION

[0092] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0093] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0094] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0095] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0096] One of the core concepts of the embodiment of the utility model is to disclose a photovoltaic glass, which may specifically include: a first side surface for incident light and a second side surface opposite to the first side surface; wherein, Figure 1 As shown, a first corrugated structure 1 and a second corrugated structure 2 alternately connected along a first direction are provided on the first side, the first corrugated structure 1 includes a first convex unit 11 and a first concave unit 12 alternately connected along a second direction; the second corrugated structure 2 includes a second concave unit 22 and a second convex unit 21 alternately connected along a second direction; the second direction intersects with the first direction; along the first direction, the first convex unit 11 is opposite to the second concave unit 22, and the first concave unit 12 is opposite to the second convex unit 21.

[0097] In an embodiment of the utility model, the first corrugated structure 1 and the second corrugated structure 2 are alternately connected along a first direction. Since the first corrugated structure 1 includes a first convex unit 11 and a first concave unit 12 that are alternately connected, the second corrugated structure 2 includes a second concave unit 22 and a second convex unit 21 that are alternately connected, and the first convex unit 11 of the first corrugated structure 1 is opposite to the second concave unit 22 of the second corrugated structure 2, and the first concave unit 12 of the first corrugated structure 1 is opposite to the second convex unit 21 of the second corrugated structure 2. In this way, when water flushes the first side surface of the photovoltaic glass 100, the water can flow along the upstream first concave unit 12 into the downstream second concave unit 22 and take away dust during the flow, thereby reducing the difficulty and cost of cleaning the photovoltaic glass 100. Moreover, a first groove can be formed between two adjacent first protrusion units 11, and a second groove can be formed between two adjacent second protrusion units 21. After the light enters the first side surface of the photovoltaic glass, the two side walls opposite to each other of the first groove can refract the light multiple times, and the two side walls opposite to each other of the second groove can refract the light multiple times, so that part of the light is absorbed and part of the light is reflected by the side walls of the first groove or the second groove. In this way, both the first corrugated structure 1 and the second corrugated structure 2 can refract and absorb the light, which can eliminate the influence of glare to a large extent, so that the photovoltaic glass 100 has a strong anti-glare ability.

[0098] In an embodiment of the utility model, the photovoltaic glass 100 includes two opposite first side surfaces and a second side surface. The first side surface is used for incident light, that is, the first side surface is the light incident surface of the photovoltaic glass 100. The first side surface may be provided with a first corrugated structure 1 and a second corrugated structure 2 alternately connected along a first direction, so that the first side surface may form an embossed surface.

[0099] Specifically, the second side surface is the backlight surface of the photovoltaic glass 100. The second side surface may be a flat surface or a velvet surface.

[0100] Specifically, the first direction is the direction in which the first corrugated structure 1 and the second corrugated structure 2 are alternately arranged, that is, the first direction may be the direction in which water flows on the photovoltaic glass 100. For example, when the photovoltaic module is installed vertically, the first direction may be the length direction of the photovoltaic glass 100, and the second direction may be the width direction of the photovoltaic glass 100; when the photovoltaic module is installed horizontally, the first direction may be the width direction of the photovoltaic glass 100, and the second direction may be the length direction of the photovoltaic glass 100.

[0101] Specifically, the first corrugated structure 1 includes alternating first convex units 11 and first concave units 12 along the second direction. Figure 3As shown, the first corrugated structure 1 can form a wave-shaped structure extending along the second direction. Similarly, the second corrugated structure 2 can also form a wave-shaped structure extending along the second direction.

[0102] Optionally, in the first direction, two second corrugated structures 2 adjacent to the first corrugated structure 1 are respectively the first target corrugated structure and the second target corrugated structure, and two first corrugated structures 1 adjacent to the second corrugated structure 2 are respectively the third target corrugated structure and the fourth target corrugated structure.

[0103] Specifically, Figure 2 As shown, the two second corrugated structures adjacent to the first corrugated structure (3) are respectively the first target corrugated structure (2) and the second target corrugated structure (4). The two first corrugated structures adjacent to the second corrugated structure (2) are respectively the third target corrugated structure (1) and the fourth target corrugated structure (3).

[0104] Optionally, in the first direction, the top of one end of the first protrusion unit 11 is connected to the bottom of the second recessed unit 22 of the first target corrugated structure, and the top of the other end is higher than the bottom of the second recessed unit 22 of the second target corrugated structure, so that the first protrusion unit 11 can be tilted to facilitate the diversion of water in the upper second recessed unit 22; moreover, the two adjacent first protrusion units 11 along the first direction can also refract the light multiple times, thereby improving the anti-glare ability of the photovoltaic glass.

[0105] Optionally, in the first direction, the top of one end of the second protrusion unit 21 is connected to the bottom of the first recessed unit 12 of the third target corrugated structure, and the top of the other end is higher than the bottom of the first recessed unit 12 of the fourth target corrugated structure, so that the second protrusion unit 21 can be tilted to facilitate the diversion of water in the upper first recessed unit 12; moreover, the two adjacent second protrusion units 21 along the first direction can also refract the light multiple times, thereby improving the anti-glare ability of the photovoltaic glass.

[0106] Specifically, two adjacent first protrusion units 11 in the first direction and two adjacent second protrusion units 21 in the second direction can be enclosed to form a first pit, and the four sides of the first pit can refract light; two adjacent second protrusion units 21 in the first direction and two adjacent first protrusion units 11 in the second direction can be enclosed to form a second pit, and the four sides of the second pit can refract light.

[0107] Specifically, Figure 2 As shown, the photovoltaic glass is placed at an angle, and the water in the first recessed unit 12 of the upper level (1) can flow into the two adjacent second recessed units 22 along the second raised unit 21 of the lower level (2) in the direction of the arrow.

[0108] Optionally, in the first direction, a line connecting the highest points at both ends of the first protruding unit 11 can form a first wave crest, and a line connecting the lowest points at both ends of the first recessed unit 12 can form a first wave trough, and the first wave crest and the second wave trough can be alternately arranged along the second direction to facilitate the first corrugated structure 1 to form a wavy structure, so as to improve the reflection effect of light and improve the anti-glare ability of the photovoltaic glass 100.

[0109] Optionally, in the first direction, a line connecting the highest points at both ends of the second protruding unit 21 can form a second wave crest, and a line connecting the lowest points at both ends of the second recessed unit 22 can form a second wave trough; the second wave trough and the second wave crest can be alternately arranged along the second direction to facilitate the second corrugated structure 2 to form a wavy structure, so as to improve the reflection effect of light and improve the anti-glare ability of the photovoltaic glass 100.

[0110] Optionally, the plurality of first wave valleys may be coplanar, and the plane where the plurality of first wave valleys are located may be the first plane; the plurality of second wave valleys may be coplanar, and the plane where the plurality of second wave valleys are located may be the second plane.

[0111] Optionally, the first plane and the second plane are parallel.

[0112] Optionally, multiple first wave crests may also be coplanar, and the plane where the multiple first wave crests are located may be a third plane; multiple second wave crests may be coplanar, and the plane where the multiple second wave crests are located may be a fourth plane, and the fourth plane is parallel to the third plane. This can effectively ensure the regularity of the pattern structure on the photovoltaic glass 100, and can improve the reflection effect of the first corrugated structure 1 and the second corrugated structure 2 on light, thereby ensuring the anti-glare capability of the photovoltaic glass 100.

[0113] Specifically, the first convex units 11 and the first concave units 12 are alternately arranged along the second direction, the second convex units 21 and the second concave units 22 are alternately arranged along the second direction, the first convex units 11 and the second concave units 22 are alternately arranged along the first direction, the first concave units 12 and the second convex units 21 are alternately arranged along the first direction, and the first wave crest and the second wave trough are opposite to each other along the first direction, and the first wave trough and the second wave crest are opposite to each other along the first direction.

[0114] Furthermore, if Figure 1As shown, the first concave unit 12 and the second concave unit 22 are staggered and overlapped along the first direction, and the photovoltaic glass 100 is placed obliquely, so that the first corrugated structure 1 and the second corrugated structure 2 can form an upper and lower staggered connection, so that the water flow can pass through the first concave unit 12 and the second concave unit 22 in sequence, and can take away the dust on the photovoltaic glass 100 during the flow process, which can improve the convenience of cleaning the photovoltaic glass 100. Moreover, the dust can also roll along the first concave unit 12 to the second concave unit 22 under the action of its own weight, which can improve the anti-dust accumulation ability of the photovoltaic glass 100.

[0115] Specifically, the first corrugated structure 1 includes alternating first wave crests and first wave troughs, and there is a height difference between the first wave crests and the first wave troughs, so that a first groove can be formed between two adjacent first wave crests, and the opposite side walls of the first groove can refract the light multiple times to absorb the light and reduce the reflected light; similarly, the corrugated surface of the second corrugated structure 2 can refract and absorb the light. Under the joint action of the first corrugated structure 1 and the second corrugated structure 2, the influence of glare can be eliminated to a large extent, thereby improving the anti-glare ability of the photovoltaic glass 100.

[0116] Optionally, the end of the first protrusion unit 11 opposite to the second target corrugated structure has a first bevel surface, and the end of the second protrusion unit 21 opposite to the fourth target corrugated structure has a second bevel surface; the angle between the first bevel surface and the first plane is the first bevel angle α1, and the angle between the second bevel surface and the second plane is the second bevel angle α2.

[0117] In the embodiment of the utility model, the first bevel is opposite to the second recessed unit 22 of the lower level, so that the first bevel can play the role of transition and connection with the second recessed unit 22 of the lower level, which can improve the beauty and smoothness of the overall structure of the photovoltaic glass, and at the same time, the first bevel can also play the role of refracting and reflecting light, further improving the anti-glare ability of the photovoltaic glass. The second bevel is opposite to the first recessed unit 12 of the lower level, so that the second bevel can play the role of transition and connection with the first recessed unit of the lower level, which can improve the beauty and smoothness of the overall structure of the photovoltaic glass, and at the same time, the second bevel can also play the role of refracting and reflecting light, further improving the anti-glare ability of the photovoltaic glass.

[0118] Specifically, Figure 2As shown, the first chamfer of the upper level (1) can be opposite to the first protruding unit 11 of the lower level (2), so that the light can be refracted multiple times between the first chamfer of the upper level (1) and the first protruding unit 11 of the lower level (2), so that part of the light is absorbed, which can reduce the light reflected, and thus improve the anti-glare ability of the photovoltaic glass. Similarly, the second chamfer of the upper level (2) can be opposite to the second protruding unit 21 of the lower level (3), so that the light can be refracted multiple times between the second chamfer of the upper level (2) and the second protruding unit 21 of the lower level (3).

[0119] Specifically, Figure 2 As shown, the first beveled surface of the upper stage (1) can also play a guiding role, for example, dust and water falling on the first wave crest and the first beveled surface of the upper stage (1) can be guided into the second recessed unit 22 of the lower stage (2). Similarly, the second beveled surface of the upper stage (2) can play a guiding role, and dust and water falling on the second wave crest and the second beveled surface can be guided into the first recessed unit 12 of the lower stage (3).

[0120] Optionally, the first beveled surface and the second beveled surface have the same inclination direction, which can further improve the aesthetics and smoothness of the overall structure of the photovoltaic glass, and can also improve the reflection effect of the first corrugated structure 1 and the second corrugated structure 2 on light.

[0121] Optionally, β1<α1<90°, β2<α2<90°; wherein, tanβ1=H1 / L1, tanβ2=H2 / L2, H1=H2, H1 is the vertical distance from the first wave crest to the first plane, H2 is the vertical distance from the second wave crest to the second plane, L1 is the width of the first corrugated structure 1 in the first direction, and L2 is the width of the second corrugated structure 2 in the first direction.

[0122] In the embodiment of the utility model, β1<α1<90°, which can increase the number of reflections of light between the first beveled surface and the lower first protruding unit 11; β2<α2<90°, which can increase the number of reflections of light between the second beveled surface and the lower second protruding unit 21, thereby improving the reflection effect of the first corrugated structure 1 and the second corrugated structure 2 on light, and improving the anti-glare ability of the photovoltaic glass 100.

[0123] Specifically, H1 and H2 can be the same or different. When H1=H2, it is convenient to realize that the planes where the first crest and the second crest are located are parallel, and the planes where the first trough and the second trough are located are parallel, which can improve the regularity of the pattern structure on the photovoltaic glass 100.

[0124] Specifically, L1 and L2 may be the same or different. When L1=L2, the regularity of the pattern structure on the photovoltaic glass 100 may be improved.

[0125] Specifically, β1 and β2 may be the same or different. When β1=β2, the regularity of the pattern structure on the photovoltaic glass 100 may be improved.

[0126] Specifically, α1 and α2 can be the same or different. When α1=α2, it is effectively ensured that the photovoltaic glass 100 has both dust-proof and anti-glare capabilities.

[0127] For example, Figure 4 As shown, taking the first corrugated structure 1 as an example, Fig. 6A As shown, the arrow direction is the first direction, and the first chamfered surface is not provided on the first protrusion unit 11. Figure 6B As shown, the arrow direction is the first direction, which illustrates a situation where the first protrusion structure does not have a first wave crest. Figure 6C As shown, the arrow direction is the first direction, which illustrates a situation where the first protruding structure has a first chamfer angle α1.

[0128] Optionally, H1 and H2 are the same and are 30-500μm, which can effectively ensure the formation of a height difference between the first wave crest and the first wave trough, and a height difference between the second wave crest and the second wave trough. In this way, the first recessed unit 12 and the second recessed unit 22 can play a guiding role. Moreover, the heights of the two side walls of the first groove are the same, and the heights of the two side walls of the second groove are the same, which can increase the number of reflections of light and absorb more light to further improve the anti-glare ability of the photovoltaic glass.

[0129] Optionally, the width L1 of the first corrugated structure 1 in the first direction can be 0.2-3.6 mm, so that the extension length of the first recessed unit 12 in the first direction can be 0.2-3.6 mm, which can improve the dust and water diversion effect of the first recessed unit 12, thereby reducing the difficulty of cleaning the photovoltaic glass 100. Moreover, it can be ensured that the first groove has a sufficient depth to refract and absorb the light multiple times.

[0130] Optionally, the width L2 of the second corrugated structure 2 in the first direction can be 0.2-3.6 mm, so that the extension length of the second recessed unit 22 in the first direction can be 0.2-3.6 mm, which can improve the dust and water diversion effect of the second recessed unit 22, thereby reducing the difficulty of cleaning the photovoltaic glass 100. In addition, it can be ensured that the second groove has a sufficient depth to refract and absorb the light multiple times.

[0131] Optionally, the distance between two adjacent first wave crests in the second direction is equal to the distance between two adjacent second wave crests in the second direction, and the distance between two adjacent first wave crests in the second direction and the distance between two adjacent second wave crests in the second direction are both 0.2-3.6 mm.

[0132] In an embodiment of the utility model, the first wave crest and the first wave trough can be arranged periodically along the second direction, and the second wave trough and the second wave crest can be arranged periodically along the second direction. Since the distance between two adjacent first wave crests in the second direction is equal to the distance between two adjacent second wave crests in the second direction, the periods of the first corrugated structure 1 and the second corrugated structure 2 are the same, which can improve the reliability of the staggered arrangement of the first wave trough and the second wave trough.

[0133] Optionally, the third direction is perpendicular to the first plane, and the first plane is parallel to the second plane.

[0134] Alternatively, if Figure 5 As shown, the angle between the tangent of the midpoint of the first corrugated structure 1 along the third direction and the first plane is γ1, 5°<γ1<75°, which can improve the reflection effect of the first corrugated structure 1 on light, thereby ensuring the anti-glare function of the photovoltaic glass 100.

[0135] Specifically, the larger γ1 is, the deeper the depth of the first groove between two adjacent first wave peaks is, the more times the light is refracted between the two opposite side walls of the first groove, the better the light absorption capacity is, and the better the anti-glare effect of the photovoltaic glass is.

[0136] Optionally, the angle between the tangent of the midpoint of the second corrugated structure 2 along the third direction and the second plane is γ2, 5°<γ2<75°, which can improve the refraction and reflection effect of the second corrugated structure 2 on light, thereby ensuring the anti-glare function of the photovoltaic glass 100.

[0137] Specifically, the larger γ2 is, the deeper the second groove between two adjacent second wave peaks is, the more times the light is refracted between the two opposite side walls of the second groove, the better the light absorption capacity is, and the better the anti-glare effect of the photovoltaic glass is.

[0138] Specifically, γ1 and γ2 can be the same or different. When γ1=γ2, the regularity of the pattern structure on the photovoltaic glass 100 can be improved, effectively ensuring that the photovoltaic glass 100 has both dust-proof and anti-glare capabilities.

[0139] Optionally, the shape of the outer convex surface of the first protrusion unit 11 includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface, which can improve the structural diversity of the first protrusion unit 11 and further improve the structural diversity of the first corrugated structure 1.

[0140] Optionally, the shape of the inner concave surface of the first concave unit 12 includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface, which can improve the structural diversity of the first concave unit 12 and further improve the structural diversity of the first corrugated structure 1.

[0141] Optionally, the shape of the outer convex surface of the second protrusion unit 21 includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface, which can improve the structural diversity of the second protrusion unit 21 and further improve the diversity of the second corrugated structure 2.

[0142] Optionally, the shape of the inner concave surface of the second concave unit 22 includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface, which can improve the structural diversity of the second concave unit 22 and further improve the diversity of the second corrugated structure 2.

[0143] Specifically, the outer convex surface of the first protruding unit 11 and the inner concave surface of the first concave unit 12 are in the shape of a cosine curved surface; the outer convex surface of the second protruding unit 21 and the inner concave surface of the second concave unit 22 are in the shape of a circular arc curved surface. Alternatively, the outer convex surface of the first protruding unit 11 and the inner concave surface of the first concave unit 12 are in the shape of a circular arc curved surface; the outer convex surface of the second protruding unit 21 and the inner concave surface of the second concave unit 22 are in the shape of a triangular prism curved surface. Alternatively, the outer convex surface of the first protruding unit 11 and the inner concave surface of the first concave unit 12 are in the shape of a cosine curved surface; the outer convex surface of the second protruding unit 21 and the inner concave surface of the second concave unit 22 are in the shape of a triangular prism curved surface. Alternatively, the outer convex surface of the first protruding unit 11 is a cosine curved surface, and the inner concave surface of the first concave unit 12 is a circular arc curved surface; the outer convex surface of the second protruding unit 21 is a circular arc curved surface, and the inner concave surface of the second concave unit 22 is a triangular prism curved surface.

[0144] In some embodiments of the present invention, the outer surface of the first corrugated structure 1 can form a first cosine wave, and the first cosine wave can satisfy y1=B1*cos(ω1*x1); the outer surface of the second corrugated structure 2 forms a second cosine wave, and the second cosine wave satisfies y2=B1*cos(ω1*x1+φ1); wherein, B1=H1 / 2=H2 / 2, ω1=2π / A1=2π / A2, H1 is the vertical distance from the first wave peak to the first plane, A1 is the distance between two adjacent first wave peaks in the second direction, H2 is the vertical distance from the second wave peak to the second plane, A2 is the distance between two adjacent second wave peaks in the second direction, and φ1 is the phase difference between the first cosine wave and the second cosine wave.

[0145] In the embodiment of the utility model, there is a phase difference φ1 between the first cosine wave and the second cosine wave, which can effectively ensure that the first wave crest and the second wave crest are staggered, and the first wave trough and the second wave trough are staggered, thereby ensuring that the photovoltaic glass 100 can have both anti-dust accumulation ability and anti-glare function.

[0146] Specifically, the outer surface of the first corrugated structure 1 may form a first cosine wave, that is, the cross-sectional shape of the outer surface of the first corrugated structure 1 in the third direction is a first cosine wave, such as Figure 5 As shown; the outer surface of the second corrugated structure 2 forms a second cosine wave, that is, the cross-sectional shape of the outer surface of the second corrugated structure 2 in the third direction is a second cosine wave, such as Figure 5 As shown, the first corrugated structure 1 and the second corrugated structure 2 are both cosine structures.

[0147] Specifically, A1=A2, so that the periods of the first cosine wave and the second cosine wave are the same. H1=H2, so that the amplitudes of the first cosine wave and the second cosine wave are the same, and there is a phase difference φ1 between the first cosine wave and the second cosine wave.

[0148] Furthermore, H1, H2, A1, A2, φ1 are all constants, B1=H1 / 2=H2 / 2, ω1=2π / A1=2π / A2, so that B1 and ω1 are both constants.

[0149] Optionally, ω1 is 5 / 9π-10π, and B1 is 15-250 um, which can ensure the light reflection effect of the first corrugated structure 1 and the second corrugated structure 2 and the guiding effect of the first concave unit 12 and the second concave unit 22.

[0150] Specifically, A1 and A2 are 0.2-3.6 mm, and H1 and H2 are 30-500 mm.

[0151] Optionally, φ1 is 0.1-1.8 mm, which can improve the misalignment effect between the first wave crest and the second wave crest, and the misalignment effect between the first wave trough and the second wave trough.

[0152] Specifically, Figure 2 As shown, the photovoltaic glass 100 is placed at an angle, the lowest point of the structural unit (1) is connected to the highest point of the structural unit (2), the lowest point of the structural unit (2) is connected to the highest point of the next-level structural unit (3), and so on, to form a complete pattern structure on the first side of the photovoltaic glass 100. Among them, the structural unit (1) and the structural unit (3) are both the first corrugated structure 1, and the structural unit (2) is the second corrugated structure 2.

[0153] The expressions of structural units (1) and (3) are: y1=B1*cos(ω1*x1), γ1 is the angle between the tangent at y1=0 and the plane where the first trough is located, γ1∈(5°, 75°); the expression of structural unit 2 is y2=B1*cos(ω1*x1+φ1), γ2 is the angle between the tangent at y2=0 and the plane where the second trough is located, γ2∈(5°, 75°).

[0154] In some other optional embodiments of the present invention, the first corrugated structure 1 includes a first end and a second end opposite to each other along the first direction, the outer convex surface of the first protrusion unit 11 forms a third cosine wave at the first end, and forms a fourth cosine wave at the second end; the inner concave surface of the first concave unit 12 forms a fourth cosine wave at the first end, and forms a third cosine wave at the second end; the second corrugated structure 2 includes a third end and a fourth end opposite to each other along the first direction, and the third end is connected to the second end; the outer convex surface of the second protrusion unit 21 forms a third cosine wave at the third end sine wave, and forms a fourth cosine wave at the fourth end; the inner concave surface of the second concave unit 22 forms a fourth cosine wave at the third end, and forms a third cosine wave at the fourth end; the third cosine wave satisfies y3=B3*cos(ω3*x3), and the fourth cosine wave satisfies y4=B4*cos(ω4*x4), wherein B3=B4=H3 / 2=H4 / 2, ω3=2π / A3, ω4=2π / A4, H3 is the amplitude of the third cosine wave, A3 is the period of the third cosine wave, H4 is the amplitude of the fourth cosine wave, and A4 is the period of the fourth cosine wave.

[0155] In the implementation of the utility model, the third end of the second corrugated structure 2 is connected to the second end of the first corrugated structure 1, the outer convex surface of the first protrusion unit 11 forms a fourth cosine wave at the second end, the inner concave surface of the first concave unit 12 forms a third cosine wave at the second end, the outer convex surface of the second protrusion unit 21 forms a third cosine wave at the third end, and the inner concave surface of the second concave unit 22 forms a fourth cosine wave at the third end, so that the first peak in the first corrugated structure 1 can be consistent in size with the second trough in the second corrugated structure 2, and the first trough in the first corrugated structure 1 and the second peak in the second corrugated structure 2 are consistent in size.

[0156] Specifically, H3 is the amplitude of the third cosine wave, H4 is the amplitude of the fourth cosine wave, H3=H4=H2=H1, H1 is the vertical distance from the first wave peak to the first plane, and H2 is the vertical distance from the second wave peak to the second plane.

[0157] Optionally, A3=0.4-2.8mm, A4=0.6-4.2mm, ω3=5 / 7π~5π, ω4=5 / 13π~10 / 3π, B3=15-250μm, so that the third cosine wave can form a small ripple, and the fourth cosine wave can form a large ripple, so that the large peak in the first corrugated structure 1 can be opposite to the large trough in the second corrugated structure 2, and the small trough in the first corrugated structure 1 is opposite to the small peak in the second corrugated structure 2.

[0158] Optionally, A3 is 0.6-4.2mm, A4 is 0.4-2.8mm, ω3 is 5 / 13π~10 / 3π, ω4 is 5 / 7π~5π, and B3 is 15-250μm, so that the third cosine wave can form a large ripple, and the fourth cosine wave can form a small ripple. In this way, the small wave peak in the first corrugated structure 1 can be opposite to the small wave valley in the second corrugated structure 2, and the large wave valley in the first corrugated structure 1 is opposite to the large wave peak in the second corrugated structure 2.

[0159] Specifically, the first corrugated structure 1 and the second corrugated structure 2 are both composite cosine-like structures, which can be composed of small corrugations and large corrugations arranged alternately and periodically, so that the pattern structure on the photovoltaic glass 100 is a composite cosine-like structure. Figure 7 and Figure 8 As shown, the trough of the upper structural unit is connected to the crest of the lower structural unit, and the trough of the upper structural unit is connected to the crest of the lower structural unit, and so on and so forth, thereby forming a complete pattern structure.

[0160] like Fig.9A As shown, taking the first corrugated structure 1 as an example, 101 illustrates the shape of the first corrugated structure 1 at the first end, and 102 illustrates the shape of the first corrugated structure 1 at the second end, so that the first corrugated structure 1 is a composite cosine-like structure.

[0161] Furthermore, combined with Fig. 9B and Fig. 9C As shown, water or dust is collected by the large wave valley and flows to the small wave valley of the next level, and then diverted to the large wave valley by the small wave peak of the next level. The small wave peak has a steeper slope than the large wave peak, which is more conducive to the natural rolling of water or dust under the action of gravity, and has a better self-cleaning effect.

[0162] Specifically, in the embodiment of the utility model, the first corrugated structure 1 and the second corrugated structure 2 are both composite cosine structures. For example, the width L1 of the first corrugated structure 1 in the first direction is equal to the width L2 of the second corrugated structure 2 in the first direction, and L1 and L2 are both 0.4-3.6 mm. The bevel angle is related to the steepness between the upper and lower structural units and the depth of the pit, which is closely related to the anti-dust and anti-glare capabilities of the photovoltaic glass 100. β1=β2=2<α1=α2<90°, tanβ1=H1 / L1, tanβ2=H2 / L2.

[0163] In some other optional embodiments of the utility model, the outer convex surface of the first protrusion unit 11 is a first circular arc surface, the inner concave surface of the first recessed unit 12 is a second circular arc surface, and / or the outer convex surface of the second protrusion unit 21 is a first circular arc surface, the inner concave surface of the second recessed unit 22 is a second circular arc surface; the diameter of the first circular arc surface is equal to the diameter of the second circular arc surface.

[0164] In the embodiment of the utility model, the diameter of the first arc surface is equal to the diameter of the second arc surface, so that the first corrugated structure 1 and / or the second corrugated structure 2 can form a smooth curved surface constructed by arcs of the same diameter.

[0165] Specifically, the first protruding unit 11 is a semi-cylinder, and the corresponding outer convex surface of the first protruding unit 11 is a first arc surface, that is, a cylindrical surface. The cross section of the outer convex surface of the first protruding unit 11 along the third direction is a semi-circular arc. Similarly, the second protruding unit 21 is not described in detail in the embodiment of the utility model.

[0166] Specifically, Fig.10 As shown in S1 in FIG. 1 , the first arc surface and the second arc surface may be semi-circular surfaces with the same diameter, that is, the cross section along the third direction is a semi-circular arc; Fig.10 As shown in S2 in FIG. 1 , the first arc surface and the second arc surface may also be arc segment surfaces with the same diameter, and the cross section along the third direction is a partial arc.

[0167] Specifically, in the embodiment of the utility model, the first corrugated structure 1 and the second corrugated structure 2 can both be smooth curved surfaces formed by arcs of the same diameter. The distance between two adjacent first wave crests is equal to the distance between two adjacent second wave crests, both of which are 0.2-3.6 mm. The vertical distance from the first wave crest to the first plane is equal to the vertical distance from the second wave crest to the second plane, both of which are 30-500 μm. The widths of the first corrugated structure 1 and the second corrugated structure 2 in the first direction are the same, both of which are 0.2-3.6 mm.

[0168] In other optional embodiments of the utility model, the outer convex surface of the first protrusion unit 11 can be a third circular arc surface, the inner concave surface of the first recessed unit 12 can be a fourth circular arc surface, and / or the outer convex surface of the second protrusion unit 21 can be a third circular arc surface, the inner concave surface of the second recessed unit 22 can be a fourth circular arc surface, and the diameter of the third circular arc surface is greater than or smaller than the diameter of the fourth circular arc surface.

[0169] In the embodiment of the utility model, the diameter of the third arc surface is larger or smaller than the diameter of the fourth arc surface, so that the first corrugated structure 1 and / or the second corrugated structure 2 can form a smooth curved surface formed by large and small arcs.

[0170] Specifically, Fig.11 As shown in S4 in FIG. 1 , the third arc surface and the fourth arc surface may be semi-circular surfaces, that is, the cross section along the third direction is a semi-circular arc; Fig.11 As shown in S3 in FIG. 1 , the third arc surface and the fourth arc surface may also be arc segment surfaces, that is, the cross section along the third direction is a partial arc.

[0171] Optionally, the first protruding unit 11 forms a third arc surface at both the first end and the second end, and the corresponding first recessed unit forms a fourth arc surface at both the first end and the second end.

[0172] Or, if Figure 7 As shown, the first protruding unit 11 forms a third arc surface at the first end and a fourth arc surface at the second end, and the corresponding first recessed unit 12 forms a fourth arc surface at the first end and a third arc surface at the second end.

[0173] Optionally, the second protruding unit 21 forms a third arc curved surface at both the first end and the second end, and the corresponding second recessed unit 22 forms a fourth arc curved surface at both the first end and the second end.

[0174] Or, if Figure 7 As shown, the second protruding unit 21 forms a third arc surface at the first end and a fourth arc surface at the second end, and the corresponding second recessed unit 22 forms a fourth arc surface at the first end and a third arc surface at the second end.

[0175] Specifically, Figure 7 As shown, the third arc surface of the first protruding unit 11 is connected to the third arc surface of the second recessed unit 22 , and the fourth arc surface of the first recessed unit 12 is connected to the fourth arc surface of the second protruding unit 21 .

[0176] Specifically, in the embodiment of the utility model, the first corrugated structure 1 and the second corrugated structure 2 can both be smooth curved surfaces formed by large and small arcs. The distance between two adjacent first wave crests is equal to the distance between two adjacent second wave crests, both of which are 0.2-3.6 mm. The vertical distance from the first wave crest to the first plane is equal to the vertical distance from the second wave crest to the second plane, both of which are 30-500 μm. The widths of the first corrugated structure 1 and the second corrugated structure 2 in the first direction are the same, both of which are 0.2-3.6 mm.

[0177] In some further optional embodiments of the present invention, as Fig.12 As shown, the outer convex surface of the first protrusion unit 11 is a triangular prism surface, the first concave unit 12 is a V-shaped groove formed by two adjacent first protrusion units 11, and / or the outer convex surface of the second protrusion unit 21 is a triangular prism surface, and the second concave unit 22 is a V-shaped groove formed by two adjacent second protrusion units 21, so that the two side walls of the V-shaped groove can refract the light multiple times, thereby ensuring the anti-glare ability of the photovoltaic glass 100; the V-shaped groove can divert dust and water, thereby ensuring the anti-dust accumulation ability of the photovoltaic glass 100.

[0178] Optionally, the top angle of the triangular prism curved surface is 130-160°, and the included angle of the V-shaped groove is 130-160°, which can improve the anti-dust and anti-glare capabilities of the photovoltaic glass 100.

[0179] Specifically, if the top angle of the triangular prism surface is too small, the V-shaped groove will cause dust accumulation, affecting the anti-dust accumulation effect of the photovoltaic glass 100; if the top angle of the triangular prism surface is too large, the triangular prism surface cannot receive the reflected light due to its gentle slope, resulting in a reduction in the spot area and an increase in intensity.

[0180] Zemax optical design software can integrate the design concepts, optimization, analysis, tolerances and reports of actual optical systems to perform optical design simulation. By importing the designed three-dimensional optical structure into Zemax and adding light source 400 and detector, its refraction and reflection performance and imaging can be simulated.

[0181] The size of the three-dimensional optical structure is set to 8.2 mm (length) × 8.2 mm (width) × 3.2 mm (height), the total power of the light source 400 is 1 W, the distance between the reflection detector 200, the transmission detector 300 and the photovoltaic glass 100 sample is 100 mm, and the number of analysis rays is 10 6 root.

[0182] like Fig.14As shown, a schematic diagram of the light source 400, the optical structure and the detector setting in the optical design software is illustrated. A reflection detector 200 and a transmission detector 300 are respectively set in the light transmission and reflection directions to collect the reflected light and form a light distribution spectrum to evaluate the performance of the optical structure. The optical structure described in the embodiment of the utility model is the photovoltaic glass 100. The area and brightness of the light spot can be used as one of the criteria for judging the anti-glare ability of the photovoltaic glass 100. The larger the area of ​​the light spot and the lower the central brightness, the better the anti-glare effect.

[0183] Specifically, the photovoltaic glass 100 forms a multi-striped light spot under the irradiation of light, and utilizes the reflection and absorption of light between adjacent structural units to largely eliminate the impact of glare, while transmitting the received sunlight to the solar cell, thereby improving the CTM (Cell To Module) of the photovoltaic module. CTM is the percentage of the output power of the photovoltaic module to the total power of the cell, indicating the degree of power loss of the photovoltaic module. The higher the CTM value, the smaller the degree of power loss of the photovoltaic module packaging.

[0184] Specifically, take the example that both the first corrugated structure 1 and the second corrugated structure 2 are cosine structures. Figures 15A-19D It is the image collected by the cosine structure on the transmission and reflection detector 200, wherein the image on the reflection detector 200 is the light spot shape formed when the sunlight irradiates the photovoltaic glass 100 observed by the human eye, and the incoherent irradiance is the light spot brightness.

[0185] As shown in Table 1, take A1=A2, H1=H2, γ1=γ2, L1=L2, α1=α2 as an example. The optical simulation image corresponding to photovoltaic glass ① is as follows: Figures 15A-15D As shown in Figure 2, the light spot shape is a multi-striped light spot. The optical simulation image corresponding to photovoltaic glass ② is shown in Figure 2. Figures 16A-16D As shown in Figure 1, compared with photovoltaic glass ①, the length of the light spot in the X and Y directions is reduced. The corresponding optical simulation image of photovoltaic glass ③ is shown in Figure 1. Figures 17A-17D As shown in Figure 2, compared with photovoltaic glass ②, A1 / A2 is reduced, γ1 / γ2 is increased, and the length of the light spot in the X direction is extended. The corresponding optical simulation image of photovoltaic glass ④ is shown in Figure 2. Figures 18A-18D As shown in Figure 3, compared with photovoltaic glass ③, the length of the light spot in the X and Y directions does not change, and the intensity of the light spot is reduced. The corresponding optical simulation image of photovoltaic glass ⑤ is shown in Figure 3. Figures 19A-19D As shown, compared with photovoltaic glass ④, α1 / α2 increases and the length of the light spot in the Y direction expands.

[0186] Table 1: Relationship between the size of the cosine structure and the corresponding spot shape

[0187]

[0188] Specifically, when the distance between the adjacent curved surfaces of the first protruding unit 11 and the second protruding unit 21 is shortened, that is, when γ1 and γ2 increase, more reflected light will be received and refracted by the adjacent curved surfaces of the first protruding unit 11 and the second protruding unit 21, thereby increasing the X-axis distribution of the light spot image. When the widths L1 and L2 are shortened and the bevel angles α1 and α2 remain unchanged, the transition between the upper and lower structural units is relatively smooth and the adjacent curved surfaces cannot receive the reflected light, resulting in a decrease in the intensity of the light spot, but the shape of the light spot is still oblate. Increasing the bevel angles α1 and α2 increases the slope of the upper and lower structural units and enlarges the distribution of the light spot in the Y-axis direction. Conclusion: The tangent angles γ1 and γ2 affect the distribution of the light spot in the X-axis direction. As γ1 and γ2 increase, the anti-glare effect is better; the bevel angles α1 and α2 affect the distribution of the light spot in the Y-axis direction. As α1 and α2 increase, the anti-glare effect is better.

[0189] Furthermore, in order to improve the anti-dust and anti-glare capabilities of the photovoltaic glass 100, A1 and A2 are 0.7-2mm, ω1 and ω2 are π~20 / 7π; the amplitudes H1 and H2 are 40-200um, B1 and B2 are 20-200um; L1 and L2 are 0.7-2mm; γ1 and γ2 are 20°~50°; and the bevel angles α1 and α2 are 25°~75°.

[0190] Specifically, take the case where both the first corrugated structure 1 and the second corrugated structure 2 are composite cosine-like structures as an example. Figures 20A-20D As shown in FIG. 1 , the image collected by the composite cosine-like structure on the transmission and reflection detector 200 is shown. The light spot is Figures 15A-15D The cosine structure is similar to that of the , which is a multi-striped light spot. Due to the change of the cosine curve period, the light receiving degree between adjacent surfaces is different, and the formed light spot expands in the X-axis direction, while the Y-axis direction remains unchanged.

[0191] The photovoltaic glass described in the embodiment of the utility model has at least the following advantages:

[0192] In the embodiment of the utility model, the first corrugated structure and the second corrugated structure are alternately connected along the first direction. Since the first corrugated structure includes the first convex unit and the first concave unit connected alternately, and the second corrugated structure includes the second convex unit and the second concave unit connected alternately, the first trough of the first corrugated structure is opposite to the second crest of the second corrugated structure. In this way, when water washes the first side of the photovoltaic glass, the water can flow into the second concave unit downstream along the upstream first concave unit, and take away dust in the process of flowing, thereby reducing the difficulty and cost of cleaning the photovoltaic glass. Moreover, a first groove can be formed between two adjacent first convex units, and a second groove can be formed between two adjacent second convex units. After the light enters the first side of the photovoltaic glass, the two side walls opposite to the first groove can refract the light multiple times, and the two side walls opposite to the second groove can refract the light multiple times, so that part of the light is absorbed, and part of the light is reflected by the side walls of the first groove or the second groove. In this way, the first corrugated structure and the second corrugated structure can play the role of refracting and absorbing light, which can largely eliminate the influence of glare, so that the anti-glare ability of the photovoltaic glass is strong.

[0193] In the second aspect, the photovoltaic module described in the embodiment of the utility model includes the above-mentioned photovoltaic glass 100, the front cover packaging film, the battery cell, the rear packaging film and the rear cover stacked in sequence; the second side of the photovoltaic glass 100 is in contact with the front cover packaging film.

[0194] The photovoltaic module described in the embodiment of the utility model has the same beneficial effects as the above-mentioned photovoltaic glass, and the embodiment of the utility model will not be described in detail here.

[0195] In a third aspect, an embodiment of the utility model further discloses a photovoltaic system, comprising the above-mentioned photovoltaic assembly and the above-mentioned photovoltaic mounting structure; the photovoltaic assembly can be mounted on the photovoltaic mounting structure by fasteners.

[0196] Specifically, the fasteners may include mounting brackets, bolts, screws, etc. The photovoltaic mounting structure may be a structure such as a purlin, a beam, etc., and the photovoltaic assembly may be mounted on a roof structure.

[0197] Optionally, the bottoms of multiple first recessed units 12 are coplanar, and the plane where the bottoms of multiple first recessed units 12 are located is the first plane; the bottoms of multiple second recessed units 22 are coplanar, and the plane where the bottoms of multiple second recessed units 22 are located is the second plane; there is a preset angle between the first plane and the second side surface, and the second plane is parallel to the first plane; the installation inclination angle of the photovoltaic mounting structure is greater than the preset angle and less than 90 degrees; wherein the first direction of the photovoltaic component is the same as the inclination direction of the photovoltaic mounting structure.

[0198] In an embodiment of the utility model, the inclination direction of the photovoltaic mounting structure is the same as the first direction, and the installation inclination angle of the photovoltaic mounting structure is greater than the preset angle and less than 90 degrees, which facilitates the flow of water along the first direction, thereby reducing the difficulty of cleaning the photovoltaic glass 100.

[0199] Alternatively, if Fig.13 As shown, the installation inclination angle θ of the photovoltaic mounting structure, β1<θ<90°, and β2<θ<90°; the vertical distance from the first wave crest to the first plane is H1, the width of the first corrugated structure 1 in the first direction is L1, tanβ1=H1 / L1; the vertical distance from the second wave crest to the second plane is H2, the width of the second corrugated structure 2 in the first direction is L2, tanβ2=H2 / L2.

[0200] In the embodiment of the utility model, β1<θ<90°, and β2<θ<90°, which can improve the ability of the photovoltaic component to prevent dust accumulation and glare.

[0201] Specifically, when laying the photovoltaic module, it is laid at a certain installation inclination angle, and the inclination direction of the photovoltaic module is consistent with the first direction. In this way, the width direction of the first corrugated structure 1 and the second corrugated structure 2 on the photovoltaic glass 100 is consistent with the inclination direction of the photovoltaic module, and the extension direction of the first recessed unit 12 and the second recessed unit 22 is consistent with the inclination direction of the photovoltaic module, which facilitates dust and water to flow downward along the first recessed unit 12 and the second recessed unit 22, thereby improving the anti-dust accumulation ability of the photovoltaic module.

[0202] The photovoltaic assembly described in the embodiment of the utility model has the same beneficial effects as the above-mentioned photovoltaic glass 100, and the embodiment of the utility model will not be described in detail here.

[0203] Although the preferred embodiments of the utility model embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0204] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0205] The photovoltaic glass, photovoltaic module and photovoltaic system provided by the utility model are introduced in detail above. The principle and implementation mode of the utility model are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for the general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and the scope of application. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A photovoltaic glass, characterized in that: include: It has a first side surface for incident light and a second side surface opposite to the first side surface; wherein, The first side surface is provided with a first corrugated structure and a second corrugated structure alternately connected along a first direction, wherein the first corrugated structure includes a first convex unit and a first concave unit alternately connected along a second direction; The second corrugated structure comprises second concave units and second convex units alternately connected along a second direction, and the second direction intersects the first direction; Along the first direction, the first convex unit is opposite to the second concave unit, and the first concave unit is opposite to the second convex unit.

2. The photovoltaic glass according to claim 1, characterized in that: In the first direction, two of the second corrugated structures adjacent to the first corrugated structure are respectively a first target corrugated structure and a second target corrugated structure, and two of the first corrugated structures adjacent to the second corrugated structure are respectively a third target corrugated structure and a fourth target corrugated structure; In the first direction, the top of one end of the first convex unit is connected to the bottom of the second concave unit of the first target corrugated structure, and the top of the other end is higher than the bottom of the second concave unit of the second target corrugated structure; The top of one end of the second convex unit is connected to the bottom of the first concave unit of the third target corrugated structure, and the top of the other end is higher than the bottom of the first concave unit of the fourth target corrugated structure.

3. The photovoltaic glass according to claim 2, characterized in that: In the first direction, a line connecting the highest points at both ends of the first protruding unit forms a first wave crest, a line connecting the lowest points at both ends of the first concave unit forms a first wave trough, and the first wave crest and the first wave trough are alternately arranged along the second direction; In the first direction, a line connecting the highest points at both ends of the second convex unit forms a second wave crest, a line connecting the lowest points at both ends of the second concave unit forms a second wave valley, and the second wave valleys and the second wave crests are alternately arranged along the second direction; Among them, multiple first wave valleys are coplanar, and the plane where multiple first wave valleys are located is a first plane; multiple second wave valleys are coplanar, and the plane where multiple second wave valleys are located is a second plane.

4. The photovoltaic glass according to claim 3, characterized in that: The end of the first protrusion unit opposite to the second target corrugated structure has a first chamfered surface, and the end of the second protrusion unit opposite to the fourth target corrugated structure has a second chamfered surface; The included angle between the first chamfered surface and the first plane is a first chamfered angle α1, and the included angle between the second chamfered surface and the second plane is a second chamfered angle α2.

5. The photovoltaic glass according to claim 4, characterized in that: β1<α1<90°, β2<α2<90°; wherein, tanβ1=H1 / L1, tanβ2=H2 / L2, H1=H2, H1 is the vertical distance from the first wave crest to the first plane, H2 is the vertical distance from the second wave crest to the second plane, L1 is the width of the first corrugated structure in the first direction, and L2 is the width of the second corrugated structure in the first direction.

6. The photovoltaic glass according to claim 3, characterized in that: The angle between the tangent line of the midpoint of the first corrugated structure along the third direction and the first plane is γ1, 5°<γ1<75°; The angle between the tangent line of the midpoint of the second corrugated structure in the third direction and the second plane is γ2, 5°<γ2<75°; The third direction is perpendicular to the first plane, and the first plane is parallel to the second plane.

7. The photovoltaic glass according to claim 1, characterized in that: The shape of the outer convex surface of the first convex unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface; The shape of the inner concave surface of the first concave unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface; The shape of the outer convex surface of the second convex unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface; The shape of the inner concave surface of the second concave unit includes at least one of a cosine curved surface, a circular arc curved surface, and a triangular prism curved surface.

8. The photovoltaic glass according to claim 3, characterized in that: The outer surface of the first corrugated structure forms a first cosine wave, and the first cosine wave satisfies y1=B1*cos(ω1*x1); The outer surface of the second corrugated structure forms a second cosine wave, and the second cosine wave satisfies y2=B1*cos(ω1*x1+φ1); Among them, B1=H1 / 2=H2 / 2, ω1=2π / A1=2π / A2, H1 is the vertical distance from the first wave peak to the first plane, A1 is the distance between two adjacent first wave peaks in the second direction, H2 is the vertical distance from the second wave peak to the second plane, A2 is the distance between two adjacent second wave peaks in the second direction, and φ1 is the phase difference between the first cosine wave and the second cosine wave.

9. The photovoltaic glass according to claim 3, characterized in that: The first corrugated structure includes a first end and a second end opposite to each other along the first direction, the outer convex surface of the first convex unit forms a third cosine wave at the first end, and forms a fourth cosine wave at the second end; the inner concave surface of the first concave unit forms a fourth cosine wave at the first end, and forms a third cosine wave at the second end; The second corrugated structure includes a third end and a fourth end opposite to each other along the first direction, the third end being connected to the second end; the outer convex surface of the second convex unit forms a third cosine wave at the third end, and forms a fourth cosine wave at the fourth end; the inner concave surface of the second concave unit forms a fourth cosine wave at the third end, and forms a third cosine wave at the fourth end; The third cosine wave satisfies y3=B3*cos(ω3*x3), and the fourth cosine wave satisfies y4=B4*cos(ω4*x4), wherein B3=B4=H3 / 2=H4 / 2, ω3=2π / A3, ω4=2π / A4, H3 is the amplitude of the third cosine wave, A3 is the period of the third cosine wave, H4 is the amplitude of the fourth cosine wave, and A4 is the period of the fourth cosine wave.

10. The photovoltaic glass according to claim 3, characterized in that: The outer convex surface of the first convex unit is a triangular prism surface, and the first concave unit is a V-shaped groove formed by two adjacent first convex units, and / or the outer convex surface of the second convex unit is a triangular prism surface, and the second concave unit is a V-shaped groove formed by two adjacent second convex units.

11. The photovoltaic glass according to claim 3, characterized in that: The outer convex surface of the first convex unit is a first arc curved surface, and the inner concave surface of the first concave unit is a second arc curved surface, and / or the outer convex surface of the second convex unit is a first arc curved surface, and the inner concave surface of the second concave unit is a second arc curved surface; The diameter of the first arc surface is equal to the diameter of the second arc surface.

12. The photovoltaic glass according to claim 3, characterized in that: The outer convex surface of the first convex unit is a third arc curved surface, and the inner concave surface of the first concave unit is a fourth arc curved surface, and / or the outer convex surface of the second convex unit is a third arc curved surface, and the inner concave surface of the second concave unit is a fourth arc curved surface; The diameter of the third circular arc surface is greater than or smaller than the diameter of the fourth circular arc surface.

13. The photovoltaic glass according to claim 1, characterized in that: The width of the first corrugated structure in the first direction is 0.2-3.6 mm; The width of the second corrugated structure in the first direction is 0.2-3.6 mm.

14. A photovoltaic module, characterized in that: It comprises the photovoltaic glass according to any one of claims 1 to 13, a front cover plate packaging film, a battery cell, a rear packaging film and a rear cover plate stacked in sequence; The second side surface of the photovoltaic glass is in contact with the front cover packaging film.

15. A photovoltaic system, characterized in that: The photovoltaic assembly and photovoltaic mounting structure include the photovoltaic assembly and photovoltaic mounting structure according to claim 14; The photovoltaic assembly is mounted on the photovoltaic mounting structure by fasteners.

16. The photovoltaic system according to claim 15, characterized in that: The bottoms of the plurality of first recessed units are coplanar, and the plane where the bottoms of the plurality of first recessed units are located is a first plane; the bottoms of the plurality of second recessed units are coplanar, and the plane where the bottoms of the plurality of second recessed units are located is a second plane; There is a preset angle between the first plane and the second side surface, and the second plane is parallel to the first plane; The installation inclination angle of the photovoltaic installation structure is greater than the preset angle and less than 90 degrees; Wherein, the first direction of the photovoltaic assembly is the same as the inclination direction of the photovoltaic installation structure.

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