High-strength light flexible assembly
By adopting a two-layer glass fiber layer structure in lightweight flexible photovoltaic modules and using complementary designs with different textures and weaving methods, the problem of insufficient impact resistance is solved, and the impact resistance is significantly improved.
Patent Information
- Application Number
- CN202421844583.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The impact resistance of existing lightweight flexible photovoltaic modules is insufficient, resulting in battery chip damage during installation and handling.
A two-layer glass fiber layer structure is adopted, in which the first glass fiber layer and the second glass fiber layer adopt different textures and weaving methods to form complementary textures and gaps to maximize the elastic modulus of the glass fiber layer.
Through this structural design, the impact resistance of photovoltaic modules is significantly improved and the risk of cell damage is reduced.
Smart Images
Figure CN222928742U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of photovoltaic components, and specifically relates to a high-strength, lightweight, flexible component. Background Art
[0002] A photovoltaic module is a power generation device that generates direct current when exposed to sunlight. It is composed of thin solid photovoltaic cells made almost entirely of semiconductor materials. As the number of curved application scenarios for photovoltaic modules increases, lightweight and flexible photovoltaic modules have come into being.
[0003] Currently, most front panels of lightweight flexible components are made of polymer composite materials, such as ETFE, PET, etc. The use of this material can meet the purpose of lightweight and flexibility of the components, but it cannot take into account the impact resistance. During installation and transportation, shaking or bending of the components will cause damage to the battery cells; the impact resistance of the glass fiber layer determines the impact resistance of the component. At this stage, most structures use a single layer of glass fiber material, and the weaving of the base material has not been optimized, so the impact resistance of the component is relatively weak. Utility Model Content
[0004] The utility model aims to provide a high-strength and lightweight flexible component to solve the technical problem that the flexible component is damaged due to its weak impact resistance, so as to achieve the purpose of improving the impact resistance of the flexible component.
[0005] In order to solve the above technical problems, the utility model provides a high-strength, lightweight, flexible component, comprising: a battery sheet, a first glass fiber layer and a second glass fiber layer, wherein the first glass fiber layer and the second glass fiber layer sequentially cover the upper surface of the battery sheet;
[0006] The first glass fiber layer is provided with a plurality of first lines and a plurality of second lines, wherein the plurality of first lines are arranged in parallel with each other, the plurality of second lines are arranged in parallel with each other, and the plurality of first lines and the plurality of second lines are arranged vertically;
[0007] The second glass fiber layer is provided with a plurality of third lines and a plurality of fourth lines, wherein the plurality of third lines are arranged in parallel with each other, the plurality of fourth lines are arranged in parallel with each other, and the third lines and the fourth lines are arranged perpendicularly;
[0008] The direction of the first lines and the direction of the third lines form a first angle, the direction of the second lines and the direction of the fourth lines form a second angle, and the first angle and the second angle are acute angles.
[0009] Furthermore, the first lines are arranged in parallel with the long sides of the first glass fiber layer, and a plurality of the first lines are arranged at equal distances.
[0010] Further, the second texture is arranged parallel to the short side of the first fiberglass layer, and a plurality of the second textures are arranged at equal intervals.
[0011] Further, a plurality of the third textures are arranged at equal intervals, and a first included angle is formed between the third texture and the long side of the second fiberglass layer, and the first included angle is 40° - 50°.
[0012] Further, a plurality of the fourth textures are arranged at equal intervals, and a second included angle is formed between the fourth texture and the short side of the second fiberglass layer, and the second included angle is 40° - 50°, and the first included angle is equal to the second included angle.
[0013] Further, a first EVA layer is arranged between the battery cell and the first fiberglass layer, and a second EVA layer and a front film are sequentially covered on the upper surface of the second fiberglass layer.
[0014] Further, a third EVA layer and a backplane 8 are sequentially covered on the lower surface of the battery cell.
[0015] The beneficial effects of the present utility model are as follows:
[0016] By arranging two layers of fiberglass layers and adopting different weaving methods for each layer of fiberglass layer, different textures and gaps are generated in the fiberglass layer, and the textures and gaps complement each other, maximizing the elastic modulus of the fiberglass layer and improving the impact resistance of the component.
[0017] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 is a schematic structural diagram of a high-strength lightweight flexible component of the present utility model;
[0020] Figure 2 is a schematic structural diagram of the first fiberglass layer of the present utility model;
[0021] Figure 3 is a schematic structural diagram of the second fiberglass layer of the present utility model.
[0022] In the figure:
[0023] 1. Solar cell; 2. First EVA layer; 3. First fiberglass layer; 31. First texture; 32. Second texture; 4. Second fiberglass layer; 41. Third texture; 42. Fourth texture; 5. Second EVA layer; 6. Front film; 7. Third EVA layer; 8. Backsheet. Detailed implementation manner
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] Embodiment:
[0026] As Figures 1 to 3 shown, a high-strength lightweight flexible component includes: a solar cell 1, a first fiberglass layer 3, and a second fiberglass layer 4. The first fiberglass layer 3 and the second fiberglass layer 4 are sequentially covered on the upper surface of the solar cell 1.
[0027] As Figure 2 shown, a plurality of first textures 31 and a plurality of second textures 32 are provided on the first fiberglass layer 3. A plurality of the first textures 31 are parallel to each other, a plurality of the second textures 32 are parallel to each other, and a plurality of the first textures 31 and a plurality of the second textures 32 are perpendicular to each other; the first textures 31 are parallel to the long side of the first fiberglass layer 3, and a plurality of the first textures 31 are arranged at equal intervals; the second textures 32 are parallel to the short side of the first fiberglass layer 3, and a plurality of the second textures 32 are arranged at equal intervals.
[0028] As Figure 3 shown, a plurality of third textures 41 and a plurality of fourth textures 42 are provided on the second fiberglass layer 4. The direction of the first texture 31 and the direction of the third texture 41 form a first included angle, and the direction of the second texture 32 and the direction of the fourth texture 42 form a second included angle. The first included angle and the second included angle are acute angles; a plurality of the third textures 41 are parallel to each other, a plurality of the fourth textures 42 are parallel to each other, and the third textures 41 and the fourth textures 42 are perpendicular to each other; a plurality of the third textures 41 are arranged at equal intervals, and the third textures 41 and the long side of the second fiberglass layer 4 have a first included angle of 45°; a plurality of the fourth textures 42 are arranged at equal intervals, and the fourth textures 42 and the short side of the second fiberglass layer 4 have a second included angle of 45°, and the first included angle is equal to the second included angle.
[0029] A first EVA layer 2 is provided between the solar cell 1 and the first fiberglass layer 3. The upper surface of the second fiberglass layer 4 is successively covered with a second EVA layer 5 and a front film 6. The lower surface of the solar cell 1 is successively covered with a third EVA layer 7 and a back sheet 8.
[0030] In summary, by providing the first fiberglass layer 3 and the second fiberglass layer 4, the first fiberglass layer 3 is obtained by cross-weaving the first texture 31 and the second texture 32 with the horizontal and vertical directions at 90° respectively, and the second fiberglass layer 4 is obtained by cross-weaving the third texture 41 and the fourth texture 42 with the horizontal and vertical directions at 45° respectively, so that different textures and gaps are generated between the first fiberglass layer 3 and the second fiberglass layer 4. When the first fiberglass layer 3 and the second fiberglass layer 4 are stacked together, the first texture 31 and the second texture 32 of the first fiberglass layer 3 are complementary to the third texture 41 and the fourth texture 42 of the second fiberglass layer 4, and the gaps between the first fiberglass layer 3 and the second fiberglass layer 4 are complementary, maximizing the elastic modulus of the first fiberglass layer 3 and the second fiberglass layer 4 and improving the impact resistance of the component.
[0031] All the devices selected in this application are common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.
[0032] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0034] Based on the above-mentioned ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A high-strength, lightweight, flexible component, characterized in that: include: A battery cell (1), a first glass fiber layer (3) and a second glass fiber layer (4), wherein the first glass fiber layer (3) and the second glass fiber layer (4) sequentially cover the upper surface of the battery cell (1); The first glass fiber layer (3) is provided with a plurality of first lines (31) and a plurality of second lines (32), the plurality of first lines (31) are arranged in parallel with each other, the plurality of second lines (32) are arranged in parallel with each other, and the plurality of first lines (31) and the plurality of second lines (32) are arranged vertically; The second glass fiber layer (4) is provided with a plurality of third lines (41) and a plurality of fourth lines (42), the plurality of third lines (41) are arranged in parallel with each other, the plurality of fourth lines (42) are arranged in parallel with each other, and the third lines (41) and the fourth lines (42) are arranged perpendicularly; The direction of the first lines (31) and the direction of the third lines (41) form a first angle, the direction of the second lines (32) and the direction of the fourth lines (42) form a second angle, and the first angle and the second angle are acute angles.
2. A high-strength, lightweight, flexible component as claimed in claim 1, characterized in that: The first lines (31) are arranged parallel to the long sides of the first glass fiber layer (3), and a plurality of the first lines (31) are arranged at equal distances.
3. A high-strength, lightweight, flexible component as claimed in claim 1, characterized in that: The second lines (32) are arranged parallel to the short sides of the first glass fiber layer (3), and a plurality of the second lines (32) are arranged at equal distances.
4. A high-strength, lightweight, flexible component as claimed in claim 1, characterized in that: A plurality of the third lines (41) are arranged at equal distances from each other, and the third lines (41) have the first angle with the long side of the second glass fiber layer (4), and the first angle is 40° to 50°.
5. A high-strength, lightweight, flexible component as claimed in claim 1, characterized in that: A plurality of the fourth lines (42) are arranged at equal distances, and the fourth lines (42) have the second angle with the short side of the second glass fiber layer (4), the second angle is 40° to 50°, and the first angle is equal to the second angle.
6. A high-strength, lightweight, flexible component as claimed in claim 1, characterized in that: A first EVA layer (2) is arranged between the battery sheet (1) and the first glass fiber layer (3), and the upper surface of the second glass fiber layer (4) is covered with a second EVA layer (5) and a front film (6) in sequence.
7. A high-strength, lightweight, flexible component as claimed in claim 1, characterized in that: The lower surface of the battery cell (1) is sequentially covered with a third EVA layer (7) and a back plate (8).