Photovoltaic module and power generation system
By setting a reflective structure on the busbar to reflect and refract the light source, the problem of the busbar blocking the reflective film is solved, realizing the efficient optical utilization of the photovoltaic module and improving the conversion efficiency of the photovoltaic module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGWEI SOLAR (HEFEI) CO LTD
- Filing Date
- 2025-03-11
- Publication Date
- 2026-05-01
AI Technical Summary
In existing photovoltaic modules, the busbars block the reflective film, resulting in low optical utilization at the spacing between adjacent cells, which fails to effectively improve the conversion efficiency of the photovoltaic modules.
A reflective structure is installed on the busbar to reflect the light source and refract the light source to the battery array through the light-transmitting plate, replacing the reflective film on the back glass and ensuring that the light is not blocked.
This improves the optical utilization rate between adjacent cell arrays, addresses the issue of low optical utilization, and enhances the overall efficiency of photovoltaic modules.
Smart Images
Figure CN224192358U_ABST
Abstract
Description
Photovoltaic modules and power generation systems Technical Field
[0001] This application relates to the field of photovoltaic technology, and in particular to photovoltaic modules and power generation systems. Background Technology
[0002] With the increasing production capacity of photovoltaics, photovoltaic modules are power generation devices that generate direct current when exposed to sunlight. The most important performance indicator of photovoltaic modules is conversion efficiency. Increasing the utilization of optics within photovoltaic modules is one of the measures to improve their conversion efficiency.
[0003] In the structural design of photovoltaic modules, the module is composed of several cells connected in series and parallel. Due to the insulation requirements between conductors, there is a gap between the cells. The light in these gaps cannot be directly absorbed and utilized by the cells, resulting in energy waste. If secondary utilization can be achieved, the power and efficiency of photovoltaic modules can be effectively improved. How to effectively utilize this energy is a technical problem that urgently needs to be solved by those skilled in the art.
[0004] Currently, the main method for utilizing light at the gaps between adjacent solar cells is to install reflective films on the back glass of photovoltaic modules. However, some locations within photovoltaic modules contain busbars, and the leads extend through the back glass. These busbars can obstruct the reflective films, resulting in lower optical utilization rates in these areas. Summary of the Invention
[0005] Therefore, it is necessary to provide photovoltaic modules and power generation systems to address the aforementioned technical issues.
[0006] This application provides a busbar for a photovoltaic module, wherein the busbar is provided with a reflective structure configured to reflect a light source.
[0007] In one embodiment, the busbar includes a first surface and a second surface facing opposite directions, the orientation of the first surface of the busbar being configured to be the same as the orientation of the light-receiving surface of the photovoltaic module, and the reflective structure being disposed on the first surface of the busbar; and / or,
[0008] The reflective structure includes a reflective surface and a backlight surface facing opposite directions. The reflective surface of the reflective structure has a curved reflective surface, and the backlight surface of the reflective structure is disposed on the busbar.
[0009] And / or, the reflective structure is configured as a reflective film or reflective strip.
[0010] This application provides a photovoltaic module, the photovoltaic module comprising:
[0011] A first light-transmitting plate and a second light-transmitting plate are arranged at intervals between each other, and an internal space is formed between the inner surfaces of the first light-transmitting plate and the inner surfaces of the second light-transmitting plate.
[0012] A battery array, wherein the number of battery arrays is configured to be several, the several battery arrays are arranged along the same plane in the space within the component, and there is an array spacing area between adjacent battery arrays;
[0013] A busbar, the number of which is configured to be at least one, the busbar being disposed in the space within the component, and at least one of the array spacing regions between the plurality of battery arrays being provided with the busbar;
[0014] A reflective structure, wherein the number of the reflective structures is configured to be at least one, and at least one of the busbars is provided with the reflective structure, the reflective structure being configured to reflect a light source projected onto the busbar.
[0015] In one embodiment, the reflective structure is configured to reflect a light source toward at least one of the first and second light-transmitting plates, and refract the light source toward at least one of the battery arrays via the first and second light-transmitting plates.
[0016] In one embodiment, the light-receiving surface of the battery array faces the first light-transmitting plate, and the backlighting surface of the battery array faces the second light-transmitting plate. The busbar includes a first surface and a second surface facing opposite directions. The first surface of the busbar faces the first light-transmitting plate, and the second surface of the busbar faces the second light-transmitting plate. The reflective structure is disposed on the first surface of the busbar; and / or,
[0017] The reflective structure includes a reflective surface and a backlight surface facing opposite directions. The reflective surface of the reflective structure faces the first light-transmitting plate. The reflective surface of the reflective structure is a curved reflective surface. The backlight surface of the reflective structure is disposed on the busbar.
[0018] In one embodiment, the distance H1 between the reflective surface of the reflective structure and the first light-transmitting plate is less than or equal to the distance H2 between the light-receiving surface of the battery array and the first light-transmitting plate; and / or,
[0019] The width L of the reflective structure is less than or equal to the width of the array spacing region; and / or,
[0020] The curved reflective surface of the reflective structure includes several reflective ridges; and / or,
[0021] The reflective structure is configured as a reflective film or a reflective strip.
[0022] In one embodiment, the distance H1 between the reflective surface of the reflective structure and the first light-transmitting plate is ≤ 0.4 mm; and / or,
[0023] The distance H1 between the reflective surface of the reflective structure and the first light-transmitting plate is the distance between the top of the reflective ridge and the first light-transmitting plate; and / or,
[0024] The width L of the reflective structure is ≤12mm; and / or,
[0025] The reflective prism is a triangular prism, and the top of the triangular prism has a vertex angle α, wherein 90.95°≤α≤91.45°.
[0026] In one embodiment, the distance H1 between the reflective surface of the reflective structure and the first light-transmitting plate is ≤0.15mm, and the distance is ≤0.1mm.
[0027] In one embodiment, the battery array includes a plurality of battery cells, and a plurality of adjacent battery cells have at least one of a cell spacing region and a string spacing region. A portion of the second light-transmitting plate is provided with the reflective structure and is located within at least one of the cell spacing regions or at least one of the string spacing regions.
[0028] And / or, at least one of the first light-transmitting plate and the second light-transmitting plate is configured as a glass plate.
[0029] This application provides a power generation system, which includes the photovoltaic module.
[0030] In the aforementioned photovoltaic modules and power generation systems, due to the change in the location of the reflective structure—that is, its removal from the back glass and its placement on the busbar—even if the busbar is located in the array spacing area between adjacent cell arrays, the reflective structure will not be blocked. This significantly improves the optical utilization of the array spacing area between adjacent cell arrays, thus mitigating the problem of low optical utilization. Attached Figure Description
[0031] Figure 1 is a schematic diagram of the layer structure of a photovoltaic module in the prior art.
[0032] Figure 2 is a schematic diagram of the planar structure of a photovoltaic module in the prior art.
[0033] Figure 3 is a schematic diagram of the layer structure of a photovoltaic module as shown in Figure 2.
[0034] Figure 4 is a schematic diagram of the planar structure of a photovoltaic module provided in this application.
[0035] Figure 5 is a schematic diagram of the layer structure of a photovoltaic module as shown in Figure 4.
[0036] Figure 6 is a schematic diagram of a reflective structure provided in this application.
[0037] Figure 7 is a schematic diagram of the incident light source of a photovoltaic module provided in this application.
[0038] Figure 8 is a schematic diagram of the parameters of a photovoltaic module as shown in Figure 5.
[0039] Figure 9 is a schematic diagram of the parameters of a photovoltaic module as shown in Figure 5.
[0040] Icon labels:
[0041] 100. Photovoltaic modules; 200. Light sources;
[0042] 1000, First light-transmitting plate; 2000, Second light-transmitting plate; 3000, Battery array; 4000, Busbar; 5000, Reflective structure; 6000, Encapsulating film;
[0043] 3001, Array Spacing Area;
[0044] 3100, Solar cell; 3101, Cell spacing area; 3102, String spacing area;
[0045] 5100, Reflective prism; 5101, Top of triangular prism. Detailed Implementation
[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0047] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0048] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0050] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0051] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0052] Referring to Figure 1, currently, increasing the utilization of optics within the photovoltaic module 100 is mainly achieved by setting a reflective film on the back glass of the photovoltaic module 100, using the reflective film to achieve secondary utilization of light at the spacing between adjacent solar cells 3100. However, as shown in Figures 2 and 3, busbars 4000 are placed in certain locations within the photovoltaic module 100. For example, several solar cells 3100 form a solar array 3000, and an array spacing region 3001 is formed between adjacent solar arrays 3000. The busbar 4000 is located in the array spacing region 3001 and can be used to electrically connect two adjacent solar arrays 3000. In this case, the placement of the busbar 4000 in the array spacing region 3001 will block the reflective film, resulting in lower optical utilization in these locations.
[0053] Based on the aforementioned technical problems, this application provides a power generation system that can be configured for photovoltaic power generation. Therefore, the power generation system may include a photovoltaic module 100. Referring to Figures 4 and 5, the photovoltaic module 100 mentioned above may include a first light-transmitting plate 1000, a second light-transmitting plate 2000, a cell array 3000, an encapsulating film 6000, a busbar 4000, and a reflective structure 5000, etc. As shown in Figure 5, the first light-transmitting plate 1000 and the second light-transmitting plate 2000 are spaced apart from each other, forming an internal space between the inner surfaces of the first light-transmitting plate 1000 and the second light-transmitting plate 2000. The first light-transmitting plate 1000 and the second light-transmitting plate 2000 may be assembled with each other in a generally parallel and spaced manner. The first light-transmitting plate 1000 and the second light-transmitting plate 2000 may be made of light-transmitting plates such as glass plates.
[0054] The number of battery arrays 3000 is configured to be several, and these battery arrays 3000 can be arranged along the same plane in the module's internal space, with an array spacing region 3001 between adjacent battery arrays 3000. The battery arrays 3000 can be encapsulated in the module's internal space between the first light-transmitting plate 1000 and the second light-transmitting plate 2000 using an encapsulating film 6000. The encapsulating film 6000 ensures that the battery arrays 3000 are encapsulated in the module's internal space according to a predetermined distribution pattern and state. Those skilled in the art can use any material of encapsulating film commonly used in the art to encapsulate the battery arrays 3000 in a predetermined distribution form according to design requirements; no limitation is made here.
[0055] In the internal space of the module between the first light-transmitting plate 1000 and the second light-transmitting plate 2000, one or more busbars 4000 can be set. The function of the busbars 4000 is to electrically connect several battery arrays 3000, so that the current can be smoothly conducted between the several battery arrays 3000 to form a complete circuit. The weak current generated by the several battery arrays 3000 is collected, combined into a larger current, and transmitted to the output end of the photovoltaic module 100 so that the electrical energy can be delivered to the inverter and other equipment for further processing and utilization.
[0056] When several battery arrays 3000 are arranged along the same plane, a spacing region 3001 is created between adjacent battery arrays 3000 to accommodate busbars 4000. This spacing allows the busbars 4000 to be positioned within the spacing region, electrically connecting adjacent battery arrays 3000. The busbars 4000 are located within the module's internal space. Those skilled in the art can, according to actual needs, place busbars 4000 in one or more spacing regions 3001 between several battery arrays 3000 to achieve current collection; no limitation is made here.
[0057] In view of the aforementioned technical problems, the placement of the reflective structure 5000 in the photovoltaic module 100 of this application can be improved. Referring again to Figures 4 and 5, and comparing Figures 2 and 3, the number of reflective structures 5000 is configured to be at least one. Therefore, according to actual needs, reflective structures 5000 can be provided on one or more busbars 4000 as needed. In this case, the reflective structure 5000 can be configured to reflect the light source 200 projected onto the busbar 4000. The reflective structure 5000 is configured as a reflective film or reflective strip, etc., that can reflect the light source 200.
[0058] Therefore, due to the change in the location of the reflective structure 5000, that is, its removal from the back glass and its placement on the busbar 4000, even if the busbar 4000 is located in the array spacing area 3001 between adjacent battery arrays 3000, the reflective structure 5000 will not be blocked. This greatly improves the optical utilization of the array spacing area 3001 between adjacent battery arrays 3000, thus improving the problem of low optical utilization.
[0059] Those skilled in the art can set the reflective structure 5000 at a suitable position on the busbar 4000 according to actual needs. For example, in one embodiment, after the reflective structure 5000 is set on the busbar 4000, it can be configured to reflect the light source 200 to one or both of the first light-transmitting plate 1000 and the second light-transmitting plate 2000, and refract the light source 200 to at least one battery array 3000 via one or both of the first light-transmitting plate 1000 and the second light-transmitting plate 2000.
[0060] Referring again to Figures 4 and 5, in one embodiment, the light-receiving surface of the battery array 3000 faces the first light-transmitting plate 1000, i.e., the upward direction in Figure 5, and the backlighting surface of the battery array 3000 faces the second light-transmitting plate 2000, i.e., the downward direction in Figure 5. The busbar 4000 includes a first surface and a second surface facing opposite directions. The first surface of the busbar 4000 faces the first light-transmitting plate 1000, i.e., the upward direction in Figure 5, and the second surface of the busbar 4000 faces the second light-transmitting plate 2000, i.e., the downward direction in Figure 5.
[0061] Furthermore, the reflective structure 5000 includes a reflective surface and a backlight surface facing opposite directions. The reflective surface of the reflective structure 5000 faces the first light-transmitting plate 1000, and the backlight surface of the reflective structure 5000 is disposed on the busbar 4000. The reflective surface of the reflective structure 5000 is a curved reflective surface. Based on the curved reflective surface, multi-degree reflection of the light source 200 can be achieved. Therefore, those skilled in the art can adjust the specific shape of the curved reflective surface according to actual needs, and use the reflective structure 5000 to achieve total internal reflection of the light source 200, thereby improving light utilization efficiency. For example, referring to Figure 6, the curved reflective surface of the reflective structure 5000 may include several reflective prisms 5100. The light source 200 can be reflected as expected by these several reflective prisms 5100. The several reflective prisms 5100 can be distributed in any manner, and the several reflective prisms 5100 can adopt any polygonal prism structure such as triangular prisms; no limitation is made here.
[0062] At this time, the reflective structure 5000 can be defined to be disposed on the first surface of the busbar 4000, so that the reflective structure 5000 can be configured to reflect the light source 200 to the first light-transmitting plate 1000 and refract the light source 200 to at least one battery array 3000 via the first light-transmitting plate 1000. When the light source 200 is incident from the first light-transmitting plate 1000, the light source 200 passes through the first light-transmitting plate 1000 and reaches the reflective structure 5000 on the busbar 4000. Based on the reflective surface of the reflective structure 5000, the light source 200 can be reflected, so that the light source 200 is reflected to the inner surface of the first light-transmitting plate 1000, and then refracted through the inner surface of the first light-transmitting plate 1000 to one or more battery arrays 3000. At this time, the battery array 3000 can generate current, which utilizes the light source 200 that was originally projected to the array spacing area 3001 between adjacent battery arrays 3000, instead of the light source 200 directly projected to the battery array 3000, thus greatly improving optical utilization.
[0063] As an example of the curved reflective surface structure design of the reflective structure 5000, referring to Figure 7, let the refractive index of the encapsulating film 6000 be N1, the refractive index of air be N4, the incident angle of the reflected light at the interface between the encapsulating film 6000 and the first light-transmitting plate 1000 (glass plate) be β, and the angle between the first light-transmitting plate 1000 (glass plate) and the air section be m. Then the following relationship exists:
[0064] N4*Sin(m)=N1*Sin(β);
[0065] Therefore, the boundary conditions for total internal reflection are m=90° and sin90°=1.
[0066] Sin(β) = N4 / N1, β = arcSin(N4 / N1), the refractive index of air is 1, and the refractive index of the encapsulating film 6000 is generally between 1.47 and 1.48, so β ≥ 42.5°.
[0067] For angle β, 42.5° ≤ β < 90°, and correspondingly 21.25° ≤ γ < 45°.
[0068] Continue to refer to Figures 8 and 9, such as the relationship between the cross section of the reflective structure 5000 and the encapsulating film 6000 and the first light-transmitting plate 1000 (glass plate) (Note: The size of the reflective ridge 5100 on the surface of the reflective structure 5000 is relatively small compared to the size of the glass plate. The size ratio is increased in Figure 8 for ease of illustration).
[0069] Specifically, the distance between the reflective surface of the reflective structure 5000 and the first light-transmitting plate 1000 is set to H1. For example, the distance H1 between the reflective surface of the reflective structure 5000 and the first light-transmitting plate 1000 is the distance between the top of the reflective ridge 5100 and the first light-transmitting plate 1000. The distance between the light-receiving surface of the battery array 3000 and the first light-transmitting plate 1000 is set to H2. The width of the reflective structure 5000 is set to L. The design objective is to ensure that all light from the entire reflective structure 5000 is reflected onto the first light-transmitting plate 1000 (glass plate).
[0070] Referring to Figure 9, the reflective prism 5100 is set as a triangular prism, and the top of the triangular prism 5101 has a vertex angle α. Assuming that the width of the triangular base of each triangular prism is l, when H1≤H2, under the extreme condition, if the light rays form a total reflection angle between the triangular face of the leftmost triangular prism and the cross section of the first light-transmitting plate 1000 (glass plate) and the encapsulating film 6000, and the reflected light rays reach the light-receiving surface of the array cell, the corresponding β and the above size conditions are preferably tanβ=[(Ll) / 2] / H1.
[0071] Under normal conditions, because the reflective structure 5000 is in the first light-transmitting plate 1000 (glass plate), it can ensure that H1≤H2.
[0072] In this embodiment, the width L of the reflective structure 5000 is less than or equal to the width of the array spacing area 3001, and L is much greater than 1 mm; generally, the width L of the reflective structure 5000 is less than or equal to 12 mm. According to H1 ≤ H2, in one embodiment, the distance H1 between the reflective surface of the reflective structure 5000 and the first light-transmitting plate 1000 is generally less than or equal to 0.4 mm. Considering process feasibility, in one embodiment, 0.1 mm ≤ the distance H1 between the reflective surface of the reflective structure 5000 and the first light-transmitting plate 1000 is less than or equal to 0.15 mm. Correspondingly, 90.95° ≤ α ≤ 91.45°.
[0073] In one embodiment, the battery array 3000 includes a plurality of battery cells 3100, which can be linearly distributed both laterally and longitudinally, as shown in Figure 2. In this case, adjacent battery cells 3100 can be spaced apart to form a cell-to-cell spacing region 3101 and a string-to-cell spacing region 3102. A portion of the second light-transmitting plate 2000 can be provided with reflective structures 5000, and these reflective structures 5000 can be located within the cell-to-cell spacing region 3101 or the string-to-cell spacing region 3102, thereby improving the optical utilization of the cell-to-cell spacing region 3101 and the string-to-cell spacing region 3102. Those skilled in the art can configure the reflective structures 5000 according to actual needs, and no limitation is made here.
[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.
[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A photovoltaic module (100), characterized in that, The photovoltaic module (100) includes: a first light-transmitting plate (1000) and a second light-transmitting plate (2000), the first light-transmitting plate (1000) and the second light-transmitting plate (2000) being spaced apart from each other, forming an internal space between the inner surfaces of the first light-transmitting plate (1000) and the second light-transmitting plate (2000); and a battery array (3000), the number of which is configured to be several, the several battery arrays (3000) being arranged along the same plane in the internal space of the module, and an array spacing area (3001) being between adjacent battery arrays (3000). Busbar (4000), the number of which is configured to be at least one, the busbar (4000) is disposed in the space within the component, and the busbar (4000) is disposed in at least one array spacing region (3001) between a plurality of battery arrays (3000); reflective structure (5000), the number of which is configured to be at least one, the reflective structure (5000) is disposed on at least one of the busbars (4000), and the reflective structure (5000) is configured to reflect a light source (200) directed toward the busbar (4000).
2. The photovoltaic module (100) according to claim 1, characterized in that, The busbar (4000) includes a first surface and a second surface facing opposite directions. The orientation of the first surface of the busbar (4000) is configured to be the same as the orientation of the light-receiving surface of the photovoltaic module (100). The reflective structure (5000) is disposed on the first surface of the busbar (4000). And / or, the reflective structure (5000) includes a reflective surface and a backlight surface facing opposite directions. The reflective surface of the reflective structure (5000) has a curved reflective surface. The backlight surface of the reflective structure (5000) is disposed on the busbar (4000). And / or, the reflective structure (5000) is configured as a reflective film or a reflective strip.
3. The photovoltaic module (100) according to claim 1, characterized in that, The reflective structure (5000) is configured to reflect a light source (200) toward at least one of the first light-transmitting plate (1000) and the second light-transmitting plate (2000), and to refract the light source (200) toward at least one of the first light-transmitting plate (1000) and the second light-transmitting plate (2000).
4. The photovoltaic module (100) according to claim 3, characterized in that, The light-receiving surface of the battery array (3000) faces the first light-transmitting plate (1000), and the backlighting surface of the battery array (3000) faces the second light-transmitting plate (2000). The busbar (4000) includes a first surface and a second surface facing opposite directions. The first surface of the busbar (4000) faces the first light-transmitting plate (1000), and the second surface of the busbar (4000) faces the second light-transmitting plate (2000). The reflective structure (5000) is disposed on the first surface of the busbar (4000). And / or, the reflective structure (5000) includes a reflective surface and a backlighting surface facing opposite directions. The reflective surface of the reflective structure (5000) faces the first light-transmitting plate (1000). The reflective surface of the reflective structure (5000) is a curved reflective surface. The backlighting surface of the reflective structure (5000) is disposed on the busbar (4000).
5. The photovoltaic module (100) according to claim 4, characterized in that, The distance H1 between the reflective surface of the reflective structure (5000) and the first light-transmitting plate (1000) is less than or equal to the distance H2 between the light-receiving surface of the battery array (3000) and the first light-transmitting plate (1000); and / or, the width L of the reflective structure (5000) is less than or equal to the width of the array spacing area (3001); and / or, the curved reflective surface of the reflective structure (5000) includes a plurality of reflective prisms (5100); and / or, the reflective structure (5000) is configured as a reflective film or a reflective strip.
6. The photovoltaic module (100) according to claim 5, characterized in that, The distance H1 between the reflective surface of the reflective structure (5000) and the first light-transmitting plate (1000) is ≤0.4mm; and / or, the distance H1 between the reflective surface of the reflective structure (5000) and the first light-transmitting plate (1000) is the distance between the top of the reflective prism (5100) and the first light-transmitting plate (1000); and / or, the width L of the reflective structure (5000) is ≤12mm; and / or, the reflective prism (5100) is a triangular prism, and the top (5101) of the triangular prism has a vertex angle α, wherein 90.95°≤α≤91.45°.
7. The photovoltaic module (100) according to claim 6, characterized in that, 0.1mm≤The distance H1 between the reflective surface of the reflective structure (5000) and the first light-transmitting plate (1000)≤0.15mm.
8. The photovoltaic module (100) according to claim 1, characterized in that, The battery array (3000) includes a plurality of battery cells (3100), and a plurality of adjacent battery cells (3100) have at least one of a cell spacing region (3101) and a string spacing region (3102). A portion of the second light-transmitting plate (2000) is provided with the reflective structure (5000) and is located within at least one of the cell spacing regions (3101) or at least one of the string spacing regions (3102).
9. The photovoltaic module (100) according to claim 1, characterized in that, At least one of the first light-transmitting plate (1000) and the second light-transmitting plate (2000) is configured as a glass plate.
10. A power generation system, characterized in that, The power generation system includes a photovoltaic module (100) as described in any one of claims 1-9.