Photovoltaic module frame and photovoltaic module

Abstract

The invention relates to the technical field of photovoltaic cells, and discloses a photovoltaic module frame and a photovoltaic module, the photovoltaic module frame comprises a mounting frame and a reflection part, the mounting frame is provided with a mounting groove, the mounting groove is used for accommodating a photovoltaic cell module, the reflection part is used for reflecting light to the photovoltaic cell module, the reflection part comprises a first reflection part and a second reflection part, and the first reflection part is used for reflecting light to the photovoltaic cell module. The first reflecting part is arranged on the top surface of the mounting frame, the second reflecting part is arranged at the end part of the mounting frame, and a second reflecting light path generated by the second reflecting part is positioned between a first reflecting light path generated by the first reflecting part and the photovoltaic cell module. The multiple surfaces of the mounting frame are provided with the light reflecting parts to realize full-spectrum reflection, and the light reflecting parts fully utilize light rays entering the frame area of the photovoltaic module, so that sunlight which is irradiated on the mounting frame and cannot be utilized originally can be reflected to the photovoltaic cell module, the light reflecting path is optimized, and the light reflecting efficiency is improved. The number of light rays entering the photovoltaic cell module is increased, and the solar ray utilization efficiency of the photovoltaic module is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell technology, and in particular to a photovoltaic module frame and a photovoltaic module. Background Art

[0002] Driven by technological innovation, policy support, and market demand, the photovoltaic industry is experiencing rapid growth. By 2025, the global photovoltaic market is projected to reach 500GW of installed capacity. While the industry holds broad prospects for growth, it also faces risks and challenges.

[0003] The conversion efficiency of photovoltaic modules refers to the efficiency of photovoltaic modules in converting solar energy into electrical energy. It is an important indicator for measuring the performance of photovoltaic modules. How to improve the conversion efficiency of photovoltaic modules has become an urgent problem to be solved. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] The first aspect of the technical solution of the present application proposes a photovoltaic module frame, which includes: a mounting frame and a reflective portion, the mounting frame is provided with a mounting groove, the mounting groove is used to accommodate a photovoltaic cell module, the reflective portion is used to reflect light to the photovoltaic cell module, the reflective portion includes a first reflective portion and a second reflective portion, the first reflective portion is provided on the top surface of the mounting frame, the second reflective portion is provided at the end of the mounting frame, and the second reflected light path generated by the second reflective portion is located between the first reflected light path generated by the first reflective portion and the photovoltaic cell module.

[0006] In some technical solutions provided in the present application, the first reflecting part includes a plurality of connected ridges, the cross-sectional shape of the ridges is triangular, a first reflecting surface is provided on the ridges, the first reflecting surface is located on the side of the ridges close to the second reflecting part, and the vertex height of the ridges gradually decreases, so that the multiple first reflecting surfaces are staggered in sequence.

[0007] In some technical solutions provided in this application, the top angle of the ridge is α, 90°>α>60°, and the angle between the first reflecting surface and the top surface of the photovoltaic cell module is β1, 135°>β1>90°.

[0008] In some technical solutions provided in the present application, the second reflective portion includes a second reflective surface, the second reflective surface is a plane, and the angle between the second reflective surface and the top surface of the photovoltaic cell module is β2, β2=β1.

[0009] In some technical solutions provided in the present application, the mounting frame includes a first frame and a second frame arranged opposite to each other, two second reflecting parts are respectively arranged on the first frame and the second frame, the second reflecting part includes a second reflecting surface, the two second reflecting surfaces are arranged opposite to each other, the cross-sectional shape of the second reflecting surface is a parabola, the four endpoints of the two parabolas are connected to form two intersecting lines, and the focal length of the parabola is related to the angle of the connecting line.

[0010] In some technical solutions provided in the present application, the photovoltaic module frame also includes: a base, the base is connected to the bottom of the mounting frame, the photovoltaic cell module includes a cell, and a light-transmitting space is formed between the cell and the side wall of the base, and the reflective part also includes a third reflective part, the third reflective part is located on the side wall and / or bottom wall of the base, and at least part of the third reflective part is located in the light-transmitting space.

[0011] In some technical solutions provided in the present application, the cross-sectional shape of the third reflective portion is an isosceles triangle, and the vertex angle of the isosceles triangle is 30° to 120°.

[0012] In some technical solutions provided in the present application, the surfaces of the first reflecting part, the second reflecting part and the third reflecting part are mirror surfaces, and the top surface of the mounting frame and the bottom surface of the base are respectively provided with anti-slip bumps and grooves. When multiple photovoltaic module frames are stacked, adjacent anti-slip bumps and grooves are matched and connected.

[0013] In some technical solutions provided in the present application, the mounting frame is provided with a glue containing groove, which is communicated with the mounting groove and is located on both sides of the mounting groove.

[0014] A second aspect of the technical solution of the present application provides a photovoltaic assembly, which includes: a photovoltaic cell module and a photovoltaic assembly frame provided by any of the above embodiments, wherein the photovoltaic cell module is located in an installation groove of the photovoltaic assembly frame.

[0015] Compared with the related art, the present invention has at least the following beneficial effects:

[0016] By setting reflective parts on multiple surfaces of the mounting frame, full-spectrum reflection is achieved. The reflective parts make full use of the light entering the frame area of the photovoltaic module, so that the sunlight that is originally unusable and shines on the mounting frame can be reflected onto the photovoltaic cell module, optimizing the reflection light path of the light, increasing the amount of light entering the photovoltaic cell module, and increasing the efficiency of the photovoltaic module in utilizing sunlight, which significantly improves the output power of the photovoltaic module, thereby improving the conversion efficiency of the photovoltaic module, so that the output power can be increased by about 3W to 5W, and the conversion efficiency of the photovoltaic module can be increased by more than 0.1%. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of some embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0018] Figure 1 A schematic diagram of the installation of a photovoltaic module frame according to an embodiment of the present application;

[0019] Figure 2 for Figure 1 A partial enlarged view of the circled position at E in the middle;

[0020] Figure 3 A schematic structural diagram of a photovoltaic cell module according to an embodiment of the present application;

[0021] Figure 4 A schematic structural diagram of a short-frame photovoltaic module frame according to an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the installation of a short-frame photovoltaic module frame according to an embodiment of the present application;

[0023] Figure 6 A schematic structural diagram of a long-frame photovoltaic module frame according to an embodiment of the present application;

[0024] Figure 7 A schematic diagram of the installation of a long-frame photovoltaic module frame according to an embodiment of the present application;

[0025] Figure 8 A schematic structural diagram of a first reflective portion and a second reflective portion according to an embodiment of the present application;

[0026] Figure 9 A diagram showing the reflective principle of a first reflective portion according to an embodiment of the present application;

[0027] Figure 10 A schematic diagram of the reflection of the second reflective surface of an embodiment provided in this application;

[0028] Figure 11 A schematic diagram of the shape of the second reflective surface of an embodiment provided in this application;

[0029] Figure 12 A schematic structural diagram of a photovoltaic module according to an embodiment of the present application.

[0030] in, Figures 1 to 12 The corresponding relationship between the reference numerals and component names is as follows:

[0031] 10. PV module frame; 100. Mounting frame; 110. Mounting slot; 120. Groove; 130. Glue storage slot; 140. First frame; 150. Second frame; 200. Reflective portion; 210. First reflective portion; 211. First reflective light path; 212. Ridge; 2121. First reflective surface; 220. Second reflective portion; 221. Second reflective light path; 222. Second reflective surface; 230. Third reflective portion; 300. Base; 310. Anti-slip bump; 320. Light-transmitting space; 20. PV module; 21. PV cell module; 22. Upper cover; 23. Front adhesive film; 24. Cell; 25. Back adhesive film; 26. Lower cover; 27. Structural adhesive. DETAILED DESCRIPTION

[0032] In order to better understand the above technical solution, the technical solution of the embodiment of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiment of the present application and the specific features in the embodiment are detailed descriptions of the technical solution of the embodiment of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiment of the present application and the technical features in the embodiment can be combined with each other.

[0033] The first embodiment of the present application provides a photovoltaic module frame 10, such as Figure 1 and Figure 2 As shown, the photovoltaic component frame 10 includes: a mounting frame 100 and a reflecting portion 200, the mounting frame 100 is provided with a mounting groove 110, the mounting groove 110 is used to accommodate the photovoltaic cell module 21, the reflecting portion 200 is used to reflect light to the photovoltaic cell module 21, the reflecting portion 200 includes a first reflecting portion 210 and a second reflecting portion 220, the first reflecting portion 210 is provided on the top surface of the mounting frame 100, the second reflecting portion 220 is provided at the end of the mounting frame 100, and the second reflecting light path 221 generated by the second reflecting portion 220 is located between the first reflecting light path 211 generated by the first reflecting portion 210 and the photovoltaic cell module 21.

[0034] In this embodiment, photovoltaic is a technology that uses solar cell semiconductor materials to convert sunlight radiation energy into electrical energy. Photovoltaic module 20 is a device that converts solar energy into electrical energy. Photovoltaic module 20 can be divided into crystalline silicon cell module and thin film cell module according to the type of cell technology. Photovoltaic module 20 includes: photovoltaic module frame 10 and photovoltaic cell module 21, packaging materials, junction box, connector and cable. Figure 3As shown, photovoltaic cell module 21 includes: an upper cover plate 22 (glass), a front adhesive film 23, cells 24, a back adhesive film 25, and a lower cover plate 26 (back sheet or glass). Along the projection direction perpendicular to cells 24, the projected area of the photovoltaic module frame 10 accounts for approximately 3% of the projected area of the photovoltaic module 20. The photovoltaic module frame 10 can be made of aluminum alloy, a surface-treated composite material, or steel.

[0035] The mounting frame 100 of the photovoltaic module frame 10 can have a polygonal or circular outline. For example, the mounting frame 100 is a rectangular frame, and the mounting frame 100 includes a long frame and a short frame. The long frame is mounted on the long side of the photovoltaic cell module 21, and the short frame is mounted on the short side of the photovoltaic cell module 21. The mounting groove 110 is an annular groove, and the outer edge of the photovoltaic cell module 21 can be inserted into the mounting groove 110, so that the mounting frame 100 is mounted on the outer periphery of the photovoltaic cell module 21.

[0036] The reflecting portion 200 forms part of the surface of the mounting frame 100, and at least part of the light that hits the reflecting portion 200 will be reflected. The reflecting portion 200 is used to reflect the light to the cell 24 of the photovoltaic cell module 21. The first reflecting portion 210 and the second reflecting portion 220 of the reflecting portion 200 are both located above the mounting groove 110. The connected first reflecting portion 210 and the second reflecting portion 220 are respectively located on the top surface and the end of the mounting frame 100. The second reflecting portion 220 is located on the side of the first reflecting portion 210 that can reflect light, so that the first reflecting portion 210 surrounds the outer periphery of the second reflecting portion 220. The second reflecting portion 220 can be arranged on the side of the mounting frame 100. The first reflecting portion 210 and the second reflecting portion 220 are respectively used to form a first reflecting light path 211 and a second reflecting light path 221, so that the top surface and the end surface of the mounting frame 100 can reflect light. The first reflecting light path 211 and the second reflecting light path 221 are located above the photovoltaic cell module 21, and the second reflecting light path 221 is located below the first reflecting light path 211, so that light can be more evenly incident on the photovoltaic cell module 21.

[0037] It should be noted that the conversion efficiency η of the photovoltaic module 20 is the electric power P output by the photovoltaic module 20. out The solar power P incident on the photovoltaic module 20 in The ratio of η = P out / P in × 100%, where P in The area of the photovoltaic module 20 under standard light intensity is 1000W / m 2 The area of the photovoltaic module 20 includes the total area of the battery cell 24 and the area of the non-battery cell 24.

[0038] By setting up reflective parts 200 on multiple surfaces of the mounting frame 100, full-spectrum reflection is achieved. The reflective parts 200 make full use of the light entering the area of the photovoltaic module frame 10, so that the sunlight that is originally unusable and shines on the mounting frame 100 can be reflected onto the photovoltaic cell module 21, thereby optimizing the reflection light path of the light, increasing the amount of light entering the photovoltaic cell module 21, and increasing the efficiency of the photovoltaic module 20 in utilizing sunlight, significantly improving the output power of the photovoltaic module 20, and thus improving the conversion efficiency of the photovoltaic module 20, so that the output power can be increased by about 3W to 5W, and the conversion efficiency of the photovoltaic module 20 can be increased by more than 0.1%.

[0039] In some embodiments provided in this application, Figure 2 and Figure 8 As shown, the first reflecting portion 210 includes a plurality of connected ridges 212, the cross-sectional shape of the ridge 212 is triangular, a first reflecting surface 2121 is provided on the ridge 212, and the first reflecting surface 2121 is located on the side of the ridge 212 close to the second reflecting portion 200. The vertex height of the ridge 212 gradually decreases, so that the plurality of first reflecting surfaces 2121 are staggered in sequence.

[0040] In this embodiment, the shape of the first reflective portion 210 is defined. The ridge 212 is cut along a vertical plane along the direction in which the ridge 212 extends, and the cross-sectional shape of the ridge 212 is triangular, so that the first reflective portion 210 forms a sawtooth structure composed of multiple triangular protrusions connected together. A first reflective surface 2121 is provided on the side of the ridge 212 close to the second reflective portion 200. The first reflective portion 200 generates a first reflected light path 211 through the first reflective surface 2121. From the first reflective portion 210 to the second reflective portion 220, the vertex height of the ridge 212 gradually decreases toward the photovoltaic cell module 21, causing the multiple first reflective surfaces 2121 to be staggered in sequence. The inner first reflective surface 2121 avoids the outer first reflective surface 2121, allowing any first reflective surface 2121 to reflect light toward the photovoltaic cell module 21, thereby reducing the obstruction of reflected light. Compared with a single reflective slope, the inclined serrated first reflective portion 210 can ensure the reflective efficiency while avoiding a significant increase in the cross-sectional area and thickness of the photovoltaic module frame 10, which is beneficial to the stacking of the photovoltaic module frames 10, reduces the material usage and product cost of the photovoltaic module frame 10, increases power while reducing the unit watt cost of the photovoltaic module 20.

[0041] In some embodiments provided in this application, Figure 8 and Figure 9 As shown, the top angle of the ridge 212 is α, 90°>α>60°, and the included angle between the first reflective surface 2121 and the top surface of the photovoltaic cell module 21 is β1, 135°>β1>90°.

[0042] In this embodiment, the shape of the first reflective portion 210 is further defined. When light strikes the first reflective surface 2121, the point of contact between the light and the first reflective surface 2121 is the incident point. At the incident point, the line perpendicular to the first reflective surface 2121 is the normal. The incident light is reflected at the incident point to form reflected light, with the incident and reflected light symmetrically located on either side of the normal. The angles α and β1 are related to the dimensions of the mounting frame 100 and the photovoltaic cell module 21.

[0043] For example, Figure 9 In the figure, incident point A is the vertex of ridge 212. Light travels perpendicularly to photovoltaic cell module 21 and reaches point A. AD is the normal line, and AB is the distance between the vertex of ridge 212 and the top surface of photovoltaic cell module 21. The top surface of photovoltaic cell module 21 is the top surface of upper cover 22. AB can be simplified as the maximum thickness from the vertex of ridge 212 to the top surface of mounting groove 110. BC is the projection distance of the reflected light from the vertex on the top surface of photovoltaic cell module 21, i.e., the maximum distance the reflected light can reach on the top surface of photovoltaic cell module 21. When calculating the first reflective portion 210 located on the long frame, BC can be simplified as the width of photovoltaic cell module 21. When calculating the first reflective portion 210 located on the short frame, BC can be simplified as the length of photovoltaic cell module 21. AC is the travel distance of the reflected light. The angle bisector AB of the vertex of ridge 212 is perpendicular to the top surface of photovoltaic cell module 21, i.e., AB is perpendicular to BC. Therefore, △ABC forms a right triangle. ∠1 is the angle between the first reflecting surface 2121 and AC, and ∠2 is the angle between the first reflecting surface 2121 and AB. Therefore, ∠α / 2=∠1, and tan(∠α / 2+∠1)=AB / BC. The maximum values of ∠β1 and ∠α are determined by the values of AB and BC, respectively:

[0044] ∠β1=180°-[90°-(arctanAB / BC) / 2];

[0045] ∠2=180°-∠β1;

[0046] ∠α=(90°-∠2)×2.

[0047] In some embodiments provided in this application, Figure 8 As shown, the second reflective portion 220 includes a second reflective surface 222 . The second reflective surface 222 is a plane. The included angle between the second reflective surface 222 and the top surface of the photovoltaic cell module 21 is β2 , where β2 = β1 .

[0048] In this embodiment, the second reflecting surface 222 is a reflecting inclined surface, and the angle between the second reflecting surface 222 and the top surface of the photovoltaic cell module 21 is β2. The value range and calculation method of the angle β2 are the same as those of β1, so that the inclination angles of the second reflecting surface 222 and the first reflecting surface 2121 are the same, thereby increasing the amount of light in the first reflecting light path 211 and the second reflecting light path 221 and making the distribution more uniform.

[0049] In some embodiments provided in this application, Figure 5 、 Figure 7 、 Figure 10 and Figure 11 As shown, the mounting frame 100 includes a first frame 140 and a second frame 150 arranged opposite to each other, and two second reflecting portions 220 are respectively arranged on the first frame 140 and the second frame 150, and the second reflecting portion 220 includes a second reflecting surface 222, and the two second reflecting surfaces 222 are arranged opposite to each other, and the cross-sectional shape of the second reflecting surface 222 is a parabola, and the four endpoints of the two parabolas are connected to form two intersecting lines, and the focal length of the parabola is associated with the angle of the line.

[0050] In this embodiment, the second reflective surface 222 is a reflective curved surface, and the first frame 140 and the second frame 150 of the mounting frame 100 are arranged relative to each other, so that the second reflective surfaces 222 on both sides are opposite to each other and protrude toward each other, and from top to bottom, the protruding distance of the second reflective surface 222 gradually increases, so that the reflected light is more uniform.

[0051] The second reflecting portion 220 is cut along a vertical plane in the extending direction of the second reflecting portion 220 , and the cross-sectional shape of the second reflecting surface 222 is a parabola. The cross-sectional shapes of the second reflecting surfaces 222 on both sides are two symmetrical parabolas. Figure 11 In the equation, the four endpoints of the two parabolas are N1, N2, M1, and M2, respectively. M1 and M2 are the lowest points of the two parabolas, N1 and N2 are the highest points of the two parabolas, and the lines connecting the intersections are N1M2 and N2M1. A coordinate system is established with the midpoint O of M1M2 as the origin and M1M2 as the horizontal axis. θ is the half-angle of the parabola, that is, half of the angle between N1M2 and N2M1, that is, the angle between N1M2 and N2M1 and the vertical axis, respectively. δ is the angle between N1M2 and N2M1 and the horizontal axis, respectively. Therefore:

[0052] θ = 90° - δ, δ = 90° - α, so θ = α, θ is 60° to 90°. The value of f is determined by θ.

[0053] In some embodiments, H is the distance from N1 and N2 to the horizontal axis, that is, the thickness of the second reflective portion 220. The focal length of the parabola is associated with the thickness H of the second reflective portion 220. According to the definition of the parabola and trigonometric identities:

[0054]

[0055] Where f is the focal length of the parabola, and the value of f is determined by θ and H.

[0056] In other embodiments, the focal length of the parabola is associated with the minimum distance M1M2 between the second light reflecting surfaces 222 on both sides, according to the formula:

[0057]

[0058] Therefore, the value of f is determined by θ and M1M2.

[0059] The parabola mathematical model of the second reflecting surface 222 is determined by f as follows:

[0060]

[0061] Among them, x is the horizontal coordinate, y is the vertical coordinate, x and y are dependent variables, and t is a set fixed factor.

[0062] In some embodiments provided in this application, Figure 1 、 Figure 4 and Figure 6 As shown, the photovoltaic component frame 10 also includes: a base 300, the base 300 is connected to the bottom of the mounting frame 100, the photovoltaic cell module 21 includes a cell 24, and a light-transmitting space 320 is formed between the cell 24 and the side wall of the base 300, and the reflective portion 200 also includes a third reflective portion 230, and the third reflective portion 230 is located on the side wall and / or bottom wall of the base 300, and at least part of the third reflective portion 230 is located in the light-transmitting space 320.

[0063] In this embodiment, a base 300 is provided below the mounting frame 100 to provide structural support for the mounting frame 100. For example, the bottom surface of the base 300 extending below the short frame is shorter than the bottom surface of the base 300 extending below the long frame. A spacing is provided between the solar cells 24 and the sidewalls of the base 300. A light-transmitting space 320 is formed vertically within the spacing. The sidewalls and / or bottom wall of the base 300 are provided with a third reflective portion 230. For example, the third reflective portion 230 may be a reflective ridge or a rounded corner. The third reflective portion 230 is located at the bottom of the base 300, with at least a portion of the third reflective portion 230 located within the light-transmitting space 320. The third reflective portion 230 can utilize sunlight transmitted through the light-transmitting space 320 to reflect the sunlight directly to the bottom of the solar cells 24 or to illuminate the solar cells 24 after multiple layers of reflection. This increases the amount of reflected light received by the bottom surface of the solar cells 24, further increases the amount of light entering the photovoltaic cell module 21, and improves the efficiency of the photovoltaic assembly 20 in utilizing sunlight.

[0064] In some embodiments provided in this application, Figure 4 and Figure 6 As shown, the cross-section of the third reflective portion 230 is an isosceles triangle, and the vertex angle of the isosceles triangle is 30° to 120°.

[0065] In this embodiment, the shape of the third reflector 230 is limited. The third reflector 230 can be composed of multiple isosceles triangles, forming a sawtooth shape. This allows light to reflect between the teeth, increasing the amount of light reflected to the solar cell 24. By limiting the vertex angle range of the isosceles triangle, the reflected light path formed by the third reflector 230 is more reasonable, allowing the third reflector 230 to reflect more light, thereby improving light utilization efficiency.

[0066] In some embodiments provided in this application, Figure 6 As shown, the surfaces of the first reflecting part 210, the second reflecting part 220 and the third reflecting part 230 are mirror surfaces, and the top surface of the mounting frame 100 and the bottom surface of the base 300 are respectively provided with anti-slip protrusions 310 and grooves 120. When multiple photovoltaic component frames 10 are stacked, adjacent anti-slip protrusions 310 and grooves 120 are matched and connected.

[0067] In this embodiment, the surface of the reflective portion 200 is mirror-finished, so that the surfaces of the first reflective portion 210, the second reflective portion 220, and the third reflective portion 230 are highly reflective, smooth mirrors. The reflective portion 200 reflects light to the cell 24 through mirror reflection. Mirror reflection keeps the reflected light parallel and can accurately reflect it to the cell 24 according to a preset optical path. In related art, the frame is made of sandblasted and anodized aluminum alloy, resulting in a matte surface on the frame surface. When light hits the surface of the photovoltaic module frame, it forms diffuse reflection. Compared with diffuse reflection, mirror reflection increases the light reflected to the cell 24, reduces the waste of sunlight, improves the light reflectivity of the reflective portion 200, makes the distribution of reflected light more uniform, and makes more effective use of the received sunlight energy.

[0068] For example, taking aluminum alloy as an example, the surface of the aluminum profile basically maintains a mirror reflection effect after extrusion molding during the production process. The reflective part 200 can maintain the mirror effect of the aluminum profile without other treatment, or the reflective part 200 can be treated by electroplating process to improve the reflective effect of the reflective part 200 on light, omitting the sandblasting process in the related technology, thereby increasing the reflectivity while reducing the cost consumption caused by the sandblasting process.

[0069] Since the surface of the mounting frame 100 is a mirror surface, anti-slip bumps 310 and grooves 120 are provided on the top surface of the mounting frame 100 and the bottom surface of the base 300, respectively. The anti-slip bumps 310 can be rubber pads, and the material of the rubber pads can be rubber products, paper or plastic. For example, the anti-slip bumps 310 are provided on the base 300, and the grooves 120 are provided on the mounting frame 100. The shapes and positions of the grooves 120 of the bumps match. When multiple photovoltaic module frames 10 are stacked, the anti-slip bumps 310 extend into adjacent grooves 120, so that the adjacent photovoltaic module frames 10 are snapped together, realizing the anti-slip function of the positioning points on the upper and lower sides of the photovoltaic module frames 10. The cooperation of the positioning points can effectively prevent the photovoltaic modules 20 from slipping due to the smooth surface when stacked during transportation and storage, thereby improving the safety and reliability of the mass production of photovoltaic modules 20.

[0070] In some embodiments provided in this application, Figure 4 and Figure 6 As shown, the mounting frame 100 is provided with a glue containing groove 130 , which is communicated with the mounting groove 110 and is located on both sides of the mounting groove 110 .

[0071] In this embodiment, the photovoltaic cell module 21 is connected to the mounting groove 110 via structural adhesive 27. Glue-containing grooves 130 are provided on both the upper and lower sides of the mounting groove 110. The glue-containing grooves 130 are used to accommodate the structural adhesive 27 to expand the capacity of the structural adhesive 27. In particular, the glue-containing grooves 130 at the bottom can accommodate the structural adhesive 27 at the bottom edge of the photovoltaic cell module 21, reducing glue overflow and improving the neatness and flatness of the photovoltaic. In addition, the glue-containing grooves 130 allow the light-transmitting space 320 outside the cell 24 to pass more sunlight, thereby allowing more light to enter the cell 24 through the third reflective portion 230, avoiding glue overflow blocking the light in the light-transmitting space 320 and improving the efficiency of light utilization.

[0072] In a second aspect of the present application, a photovoltaic assembly 20 is provided, such as Figure 12 As shown, the photovoltaic assembly 20 includes: a photovoltaic cell module 21 and the photovoltaic assembly frame 10 provided by any of the above embodiments. The photovoltaic cell module 21 is located in the installation groove 110 of the photovoltaic assembly frame 10.

[0073] In this embodiment, it should be noted that the photovoltaic assembly 20 includes the photovoltaic assembly frame 10 provided by any of the above embodiments, and thus has all the beneficial technical effects of the above photovoltaic assembly frame 10. To avoid repetition, they are not described here.

[0074] In a specific embodiment, a photovoltaic module 20 that optimizes full-spectrum light utilization is proposed. The photovoltaic module 20 includes: a top cover glass, a front encapsulation film, a bifacial power generation cell 24, a back encapsulation film, a bottom cover plate 26 (glass or backplane), and an aluminum alloy frame (i.e., the photovoltaic module frame 10). Compared to conventional matte-surface frame modules, the aluminum alloy frame of the present invention features a bright, full-spectrum reflective design. By optimizing the light path at the edge of the photovoltaic module 20, sunlight that would otherwise be unusable on the aluminum alloy frame is reflected onto the photovoltaic cells 24 in the module. The surface of the aluminum alloy frame is also mirror-finished, further improving sunlight utilization and enhancing the conversion efficiency of the photovoltaic module 20.

[0075] A reflective serrated structure (i.e., a first reflective portion 200) and a reflective surface (i.e., a second reflective surface 222) are provided on the front top frame of the aluminum alloy frame (i.e., the mounting frame 100). The reflective surface is a reflective bevel or a reflective curved surface, and the angle between the reflective bevel and the glass cover is 90° to 135°. A reflective serrated structure (i.e., a third reflective portion 200) is provided on the bottom of the back frame of the aluminum alloy frame (i.e., the base 300) facing the sunlight, and the serrated top angle is 30° to 120°. The reflective surfaces involved are all treated with a bright surface, and the frames involved are provided with corresponding raised points (i.e., anti-slip bumps 310) and recessed points (i.e., grooves 120) for anti-slip design, which effectively prevents slippage between components.

[0076] In the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0077] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0078] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0079] The above are merely some embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A photovoltaic module frame, characterized in that: include: A mounting frame, wherein the mounting frame is provided with a mounting slot, and the mounting slot is used to accommodate the photovoltaic cell module; A reflecting portion, which is used to reflect light to the photovoltaic cell module, and includes a first reflecting portion and a second reflecting portion. The first reflecting portion is arranged on the top surface of the mounting frame, and the second reflecting portion is arranged at the end of the mounting frame. The second reflected light path generated by the second reflecting portion is located between the first reflected light path generated by the first reflecting portion and the photovoltaic cell module.

2. The photovoltaic module frame according to claim 1, characterized in that: The first reflecting portion includes a plurality of connected ridges, each of which has a triangular cross-sectional shape. A first reflecting surface is provided on the ridge, and the first reflecting surface is located on the side of the ridge close to the second reflecting portion. The vertex height of the ridge gradually decreases, so that the plurality of first reflecting surfaces are staggered in sequence.

3. The photovoltaic module frame according to claim 2, characterized in that: The top angle of the ridge is α, 90°>α>60°, and the included angle between the first reflective surface and the top surface of the photovoltaic cell module is β1, 135°>β1>90°.

4. The photovoltaic module frame according to claim 3, characterized in that: The second reflective portion includes a second reflective surface, the second reflective surface is a plane, and an angle between the second reflective surface and the top surface of the photovoltaic cell module is β2, where β2=β1.

5. The photovoltaic module frame according to claim 3, characterized in that: The mounting frame includes a first frame and a second frame arranged opposite to each other, two second reflecting parts are respectively arranged on the first frame and the second frame, the second reflecting part includes a second reflecting surface, the two second reflecting surfaces are arranged opposite to each other, the cross-sectional shape of the two second reflecting surfaces is two parabolas, the four endpoints of the two parabolas are connected to form two intersecting lines, and the focal length of the parabola is associated with the angle of the lines.

6. The photovoltaic module frame according to claim 1, characterized in that: Also includes: A base connected to the bottom of the mounting frame, wherein the photovoltaic cell module includes cells, and a light-transmitting space is formed between the cells and the sidewalls of the base; The reflective portion further includes a third reflective portion, and the third reflective portion is located on the side wall and / or bottom wall of the base, and at least a portion of the third reflective portion is located in the light-transmitting space.

7. The photovoltaic module frame according to claim 6, characterized in that: The cross-section of the third reflective portion is an isosceles triangle, and a vertex angle of the isosceles triangle is 30° to 120°.

8. The photovoltaic module frame according to claim 6, characterized in that: The surfaces of the first reflecting part, the second reflecting part and the third reflecting part are mirror surfaces; The top surface of the installation frame and the bottom surface of the base are respectively provided with anti-slip bumps and grooves. When a plurality of photovoltaic component frames are stacked, adjacent anti-slip bumps and grooves are matched and connected.

9. The photovoltaic module frame according to any one of claims 1 to 8, characterized in that: The installation frame is provided with a glue containing groove, which is communicated with the installation groove and is located on both sides of the installation groove.

10. A photovoltaic module, characterized in that: include: Photovoltaic cell modules; The photovoltaic module frame according to any one of claims 1 to 9, wherein the photovoltaic cell module is located in a mounting groove of the photovoltaic module frame.

Images