Photovoltaic glass and photovoltaic module

Abstract

The utility model relates to a photovoltaic glass and a photovoltaic assembly, the photovoltaic glass is used in the photovoltaic assembly, the photovoltaic glass comprises a substrate reinforcing structure, and the substrate is provided with a first side surface and a second side surface which are oppositely arranged; a plurality of reinforcing structures arranged at intervals are arranged on the first side face and / or the second side face, the reinforcing structures are arranged in a protruding mode from the first side face and / or the second side face in the direction away from the substrate, and the reinforcing structures extend in the first direction; both the substrate and the reinforcing structure have light transmission. According to the photovoltaic glass, the reinforcing structure is arranged on the substrate, so that pressure is borne through the reinforcing structure, force applied to the photovoltaic glass is dispersed, and the whole photovoltaic glass has better rigidity and good bearing capacity. According to the photovoltaic glass with the structural form, the bending strength and the bearing capacity of the photovoltaic glass are improved, so that the photovoltaic glass has higher environmental adaptability, the reliability of a photovoltaic module is improved, and the service life of the photovoltaic module is prolonged.

Description

Technical Field

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

[0002] Photovoltaic power generation is an important part of clean and renewable energy, and its development prospects are broad. One of the core components of photovoltaic modules is photovoltaic glass, which is not only used to protect the internal structure of the module, but also has the function of transmitting and guiding light.

[0003] However, various types of photovoltaic glass in the prior art are easily damaged due to their own weight and insufficient strength after being made into photovoltaic modules. Photovoltaic glass has problems such as insufficient bending strength, poor environmental adaptability and limited light utilization. These problems and deficiencies directly lead to the low reliability and short service life of existing photovoltaic modules, which cannot meet the development needs of the photovoltaic industry. Utility Model Content

[0004] Based on this, it is necessary to provide a photovoltaic glass and a photovoltaic module to address the technical problem of insufficient bending strength of photovoltaic glass in the prior art.

[0005] A photovoltaic glass, used in a photovoltaic module, comprising:

[0006] A substrate having a first side surface and a second side surface arranged opposite to each other;

[0007] A reinforcing structure, wherein a plurality of the reinforcing structures are arranged at intervals on the first side surface and / or the second side surface, the reinforcing structures are arranged to protrude from the first side surface and / or the second side surface in a direction away from the substrate, and the reinforcing structures extend along a first direction;

[0008] Wherein, the substrate and the reinforcement structure are both light-transmissive.

[0009] In one embodiment, the spacing direction of the reinforcement structure is the second direction, the first direction and the second direction are arranged at an angle, and the angle between the first direction and the second direction is between 60-90 degrees.

[0010] In one embodiment, the height of the reinforcement structure is configured to gradually increase from both ends of the second direction toward a middle position.

[0011] In one embodiment, the cross-sectional shape of the reinforcement structure is configured as any one of a U-shape, a triangle, and a trapezoid.

[0012] In one of the embodiments, the width of the reinforcement structure in the second direction ranges from 1 to 6 mm.

[0013] In one embodiment, the distance between two adjacent reinforcement structures is in the range of 0.2-2 mm.

[0014] In one embodiment, the height of the highest position of the reinforcement structure ranges from 0.01 to 0.35 mm.

[0015] In one embodiment, installation areas are reserved at both ends of the first side surface and the second side surface along the second direction, and the installation areas are configured as planes.

[0016] In one embodiment, the thickness of the substrate is in the range of 0.1-10 mm.

[0017] A photovoltaic module comprises the photovoltaic glass as described above.

[0018] Beneficial effects of the utility model:

[0019] The utility model provides a photovoltaic glass, wherein the substrate is used to support structures such as photovoltaic cells in a photovoltaic module. By arranging a reinforcing structure on the first side and / or the second side of the substrate, the pressure is borne by the reinforcing structure protruding in the direction away from the substrate, thereby dispersing the force applied to the photovoltaic glass, so that the entire photovoltaic glass has better rigidity and good bearing capacity. The substrate and the reinforcing structure are set as a structure with light-transmitting properties, so that light can pass through the photovoltaic glass and be absorbed by the solar cells and converted into electrical energy. By using the photovoltaic glass with the above structural form, the bending strength and bearing capacity of the photovoltaic glass are improved, so that the photovoltaic glass has stronger environmental adaptability, thereby improving the reliability of the photovoltaic module and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is an overall schematic diagram of a photovoltaic glass provided by an embodiment of the utility model;

[0021] FIG2 is a partial enlarged schematic diagram of a photovoltaic glass provided by an embodiment of the utility model;

[0022] FIG3 is a partial enlarged schematic diagram of a photovoltaic glass provided by another embodiment of the utility model;

[0023] FIG4 is a schematic diagram of the cross-sectional shape of the reinforcement structure of the photovoltaic glass provided in one embodiment of the utility model.

[0024] Reference numerals:

[0025] Photovoltaic glass 100; substrate 110; reinforcement structure 120; width D; height H; spacing L; first direction X; second direction Y. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0027] 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.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] Referring to Figures 1 to 4, an embodiment of the utility model provides a photovoltaic glass 100 for use in a photovoltaic module. The photovoltaic glass 100 includes a substrate 110 and a reinforcing structure 120. The substrate 110 has a first side surface and a second side surface that are relatively arranged. A plurality of reinforcing structures 120 are arranged on the first side surface and / or the second side surface. The reinforcing structures 120 protrude from the first side surface and / or the second side surface in a direction away from the substrate 110, and extend along a first direction. Both the substrate 110 and the reinforcing structure 120 are light-transmitting.

[0033] In the photovoltaic glass 100 provided by the present technical solution, the substrate 110 is used to support structures such as photovoltaic cells in the photovoltaic module. By arranging a reinforcing structure 120 on the first side and / or the second side of the substrate 110, the reinforcing structure 120 protruding in the direction away from the substrate 110 bears pressure, and then disperses the force applied to the photovoltaic glass 100, so that the entire photovoltaic glass 100 has better rigidity and good bearing capacity. The substrate 110 and the reinforcing structure 120 are set to a structure with light-transmitting properties, so that light can pass through the photovoltaic glass 100 and be absorbed by the solar cells and converted into electrical energy. Through the photovoltaic glass 100 with the above structural form, the bending strength and bearing capacity of the photovoltaic glass 100 are improved, so that the photovoltaic glass 100 has stronger environmental adaptability, thereby improving the reliability of the photovoltaic module and extending its service life.

[0034] It is understandable that the reinforcing structure 120 can be provided only on the first side of the substrate 110, or only on the second side of the substrate 110. As a preferred embodiment, the reinforcing structure 120 is provided on both the first side and the second side. The reinforcing structure 120 provided on both the first side and the second side can make the reinforcing structures 120 on both sides disperse the forces received by the photovoltaic glass 100, thereby making the bending resistance and pressure bearing capacity of the entire photovoltaic glass 100 stronger. For the form of providing the reinforcing structure 120 on both the first side and the second side, the reinforcing structures 120 of different shapes and sizes can be provided on the first side and the second side, respectively. The reinforcing structures 120 on the two sides can be provided correspondingly or staggered. It can also be that the substrate 110 protrudes in one direction as a whole along the thickness direction, and then a depression is formed on the other side. For example, the position where the protrusion is formed on the first side is a depression formed on the second side. The position where the depression is formed between two adjacent protrusions on the first side is a corresponding protrusion formed on the second side.

[0035] It is understandable that the reinforcing structure 120 is arranged to extend along the first direction, that is, the reinforcing structure 120 is a long strip structure. The first direction may be along the length direction of the substrate 110 or along the width direction of the substrate 110 .

[0036] It should be noted that the reinforcing structure 120 and the substrate 110 are integrally formed. The reinforcing structure 120 and the substrate 110 can be made of any material such as ordinary float glass, ultra-clear float glass, and ultra-clear rolled glass.

[0037] In one embodiment, the spacing direction of the reinforcing structure 120 is the second direction, the first direction and the second direction are arranged at an angle, and the angle between the first direction and the second direction is between 60-90 degrees. In some embodiments, when the angle between the first direction and the second direction is 90 degrees, when the first direction is along the width direction of the substrate 110, the second direction is along the length direction of the substrate 110, and correspondingly, when the first direction is along the length direction of the substrate 110, the second direction is along the width direction of the substrate 110. In another embodiment, when the angle between the first direction and the second direction is less than 90 degrees, the extension direction of the reinforcing structure 120 is inclined relative to the spacing direction. For example, when the reinforcing structure 120 is arranged at intervals along the length direction of the substrate 110, the angle between the extension direction of the reinforcing structure 120 and the length direction of the substrate 110 can be 60 degrees, 75 degrees or 80 degrees, etc. The extension direction of the reinforcing structure 120 is arranged in a form inclined to the extension direction of the reinforcing structure 120, so that the photovoltaic glass 100 has higher bending resistance and compression resistance in both the first direction and the second direction.

[0038] As shown in Figures 2 to 4, in one embodiment, the height of the reinforcing structure 120 is set to gradually increase from both ends of the second direction to the middle position. This arrangement allows the pressure on the reinforcing structure 120 to be gradually dispersed by both sides of the reinforcing structure 120, so that the force is decomposed in both the horizontal and vertical directions, thereby increasing the bending strength of the reinforcing structure 120. Specifically, the reinforcing structure 120 is constructed in any one of a U-shape, a triangle, and a trapezoid. The reinforcing structure 120 is set to a U-shape, which has a strong buffering performance, and when the photovoltaic module is packaged, its bonding strength with the battery cell is large. When the reinforcing structure 120 is set to a triangle and a trapezoid, the reinforcing structure 120 has a strong planar compressive strength due to the effect of the inclined surface.

[0039] With reference to FIG. 4 , it can be understood that in one embodiment, the width D of the reinforcing structure 120 in the second direction ranges from 1 to 6 mm. It is understood that if the width D of the reinforcing structure 120 is set too narrow, stress concentration will occur at the place where the reinforcing structure 120 contacts the substrate 110, thereby affecting the strength of the entire photovoltaic module; if the width D of the reinforcing structure 120 is set too wide, the force dispersion of the reinforcing structure 120 will be weakened. Therefore, in this embodiment, the width D of the reinforcing structure 120 in the second direction is set between 1 and 6 mm. Specifically, when the second direction is along the length direction of the substrate 110, the width D of the reinforcing structure 120 in the second direction is set between 2 and 6 mm; when the second direction is along the width direction of the substrate 110, the width D of the reinforcing structure 120 in the second direction is set between 1 and 4 mm.

[0040] With reference to FIG4 , it can be understood that in one embodiment, the spacing L between two adjacent reinforcing structures 120 ranges from 0.2 to 2 mm. If two adjacent reinforcing structures 120 are arranged in close proximity, the reinforcing structures 120 will be too dense, so that when the photovoltaic module is packaged, the force applied by the reinforcing structure 120 on the battery cell is too large, which can easily cause hidden cracks in the battery cell and also make it difficult for the adhesive film to be filled in the space between the two reinforcing structures 120. If the distance between the two reinforcing structures 120 is set too large, the bending resistance and pressure bearing capacity of the entire photovoltaic glass 100 will be weakened. In this embodiment, the distance between two adjacent reinforcing structures 120 is set between 0.2 and 2 mm, which can not only avoid hidden cracks in the battery cell, but also ensure the bending resistance of the photovoltaic glass 100. Specifically, when the second direction is along the width direction of the substrate 110 , the distance between two adjacent reinforcing structures 120 is set between 0.2-0.8 mm; when the second direction is along the length direction of the substrate 110 , the distance between two adjacent reinforcing structures 120 is set between 0.5-1.5 mm.

[0041] Referring to FIG. 4 , it can be understood that in one embodiment, the height H of the highest position of the reinforcement structure 120 ranges from 0.01 to 0.35 mm. If the height of the highest position of the reinforcement structure 120 is too low, it will not improve the bending strength of the photovoltaic module; if the height of the highest position of the reinforcement structure 120 is too high, it will easily cause hidden cracks in the battery cell during packaging. As a preferred solution, the height range of the highest position of the reinforcement structure 120 is set between 0.01 and 0.35 mm.

[0042] In one embodiment, installation areas are reserved at both ends of the first side and the second side along the second direction, and the installation areas are set to be planes. Installation areas are reserved at both ends of the first side and the second side along the second direction, and the installation areas are set to be planes, that is, no reinforcement structure 120 is set in the installation area, so as to facilitate the installation of the frame of the photovoltaic module during packaging.

[0043] In one embodiment, the thickness of the substrate 110 is in the range of 0.1-10 mm. That is to say, the photovoltaic glass 100 provided by the utility model is applicable to the case where the thickness of the substrate 110 is in the range of 0.1-10 mm.

[0044] A photovoltaic module, the photovoltaic module includes the photovoltaic glass as described above. The photovoltaic glass as described above is applied to the photovoltaic module, and the substrate is used to support structures such as photovoltaic cells in the photovoltaic module. By arranging a reinforcing structure on the first side and / or the second side of the substrate, the pressure is borne by the reinforcing structure protruding away from the substrate, thereby dispersing the force applied to the photovoltaic glass, so that the entire photovoltaic glass has better rigidity and good bearing capacity. The substrate and the reinforcing structure are arranged as a structure with light-transmitting properties, so that light can pass through the photovoltaic glass and be absorbed by the solar cells and converted into electrical energy. The photovoltaic glass with the above structural form improves the bending strength and bearing capacity of the photovoltaic glass, so that the photovoltaic glass has stronger environmental adaptability, thereby improving the reliability of the photovoltaic module and extending its service life.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A photovoltaic glass used in a photovoltaic module, characterized in that: The photovoltaic glass comprises: A substrate having a first side surface and a second side surface arranged opposite to each other; A reinforcing structure, wherein a plurality of the reinforcing structures are arranged at intervals on the first side surface and / or the second side surface, the reinforcing structures are arranged to protrude from the first side surface and / or the second side surface in a direction away from the substrate, and the reinforcing structures extend along a first direction; Wherein, the substrate and the reinforcement structure are both light-transmissive.

2. The photovoltaic glass according to claim 1, characterized in that: The spacing direction of the reinforcement structure is the second direction, the first direction and the second direction are arranged at an angle, and the angle between the first direction and the second direction is between 60-90 degrees.

3. The photovoltaic glass according to claim 2, characterized in that: The height of the reinforcement structure is configured to gradually increase from both ends of the second direction toward a middle position.

4. The photovoltaic glass according to claim 3, characterized in that: The cross-sectional shape of the reinforcement structure is configured as any one of a U-shape, a triangle, and a trapezoid.

5. The photovoltaic glass according to claim 3, characterized in that: The width of the reinforcement structure in the second direction ranges from 1 mm to 6 mm.

6. The photovoltaic glass according to claim 3, characterized in that: The distance between two adjacent reinforcement structures ranges from 0.2 to 2 mm.

7. The photovoltaic glass according to claim 3, characterized in that: The height of the highest position of the reinforcement structure ranges from 0.01 to 0.35 mm.

8. The photovoltaic glass according to claim 2, characterized in that: Installation areas are reserved at two ends of the first side surface and the second side surface along the second direction, and the installation areas are configured as planes.

9. The photovoltaic glass according to any one of claims 1 to 8, characterized in that: The thickness of the substrate ranges from 0.1 to 10 mm.

10. A photovoltaic module, characterized in that: The photovoltaic module comprises the photovoltaic glass according to any one of claims 1 to 9.

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