Photovoltaic module frame, photovoltaic module and photovoltaic system

Abstract

The application relates to a photovoltaic module frame, a photovoltaic module and a photovoltaic system. The photovoltaic module frame comprises a mounting part and a bearing part. The mounting part is provided with a mounting groove, and the top of the mounting part is provided with an A surface. The first reflecting surface is arranged at one end of the A surface close to the photovoltaic panel. In the direction opposite to the depth direction of the mounting groove, the first reflecting surface is inclined from the top of the mounting part to the end close to the photovoltaic panel. The bearing part is connected to the side of the mounting part away from the A surface. The bearing part comprises a first wall close to the photovoltaic panel. The end of the first wall away from the mounting part is provided with a protruding part. The side of the protruding part facing the mounting part is provided with a reflecting structure. The reflecting structure comprises a second reflecting surface. In the depth direction of the mounting groove, the second reflecting surface is inclined. The height of the end of the second reflecting surface close to the first wall is higher than the height of the end of the second reflecting surface away from the first wall. The first reflecting surface and the second reflecting surface can reflect part of the light to the battery piece, thereby improving the absorption and utilization amount of the light by the battery piece.

Description

Technical Field

[0001] This application relates to the field of solar energy technology, and in particular to photovoltaic module frames, photovoltaic modules, and photovoltaic systems. Background Technology

[0002] The frame of a photovoltaic (PV) module is a crucial component, primarily used to secure the module, seal its edges, and enhance its mechanical strength, thereby extending its lifespan. Today, with the further development of the PV industry, the power generation efficiency of PV modules is paramount. PV module efficiency is related to sunlight intensity; high light utilization facilitates higher module power and efficiency. However, existing frame structures can obstruct sunlight, reducing the amount of light projected onto the solar cells and thus limiting further improvements in PV module power and efficiency. Utility Model Content

[0003] Therefore, it is necessary to provide a photovoltaic module frame to address the technical problem that existing frame structures can block light, resulting in reduced light projection onto the solar cells, which limits the further improvement of photovoltaic module power and power generation efficiency.

[0004] A photovoltaic module frame, comprising:

[0005] The mounting part is provided with a mounting groove for fixing the edge of the photovoltaic panel, and the top of the mounting part has an A surface, the position of which corresponds to the position of the side wall of the mounting groove. The end of the A surface near the photovoltaic panel is provided with a first reflective surface, and in a direction opposite to the depth direction of the mounting groove, the first reflective surface is inclined from the top of the mounting part toward the end near the photovoltaic panel.

[0006] The support portion is connected to the side of the mounting portion away from the A-side. The support portion includes a first wall along the depth direction of the mounting groove. The first wall is a side wall of the support portion near the photovoltaic panel. The end of the first wall away from the mounting portion has a protrusion. The side of the protrusion facing the mounting portion has a reflective structure. The reflective structure includes a second reflective surface. In the depth direction of the mounting groove, the second reflective surface is inclined, and the height of the end of the second reflective surface near the first wall is higher than the height of the end of the second reflective surface away from the first wall.

[0007] In one embodiment, the acute angle formed by the second reflective surface and the depth direction of the mounting groove has a first angle, the first angle being 0°-45°; and / or, the acute angle formed by the first reflective surface and the depth direction of the mounting groove has a second angle, the second angle being 45°-90°.

[0008] In one embodiment, the second reflective surface is integrally formed with the first wall and is connected to the first wall; or, the second reflective surface is separately disposed from the first wall and abuts against the first wall.

[0009] In one embodiment, in the arrangement direction of the mounting portion and the bearing portion, the first wall is flush with the groove edge of the mounting groove or recessed relative to the groove edge of the mounting groove.

[0010] In one embodiment, a first dimension is provided between the two ends of the second reflective surface along the depth direction of the mounting groove, and a solar cell is provided inside the photovoltaic panel, with a second dimension between the side of the solar cell facing the mounting groove and the groove edge of the mounting groove;

[0011] The first dimension is greater than or equal to the second dimension.

[0012] In one embodiment, at least one of the first reflective surface and the second reflective surface is any one of a plane, a curved surface, and a wavy surface.

[0013] In one embodiment, the reflective structure further includes a mating surface, and there are multiple mating surfaces and second reflective surfaces. The mating surfaces and second reflective surfaces are alternately arranged on the side of the protrusion facing the mounting portion along the depth direction of the mounting groove, and any adjacent mating surfaces and second reflective surfaces are arranged at an angle.

[0014] In the depth direction of the mounting groove, the size of the second reflective surface is larger than the size of the mating surface.

[0015] In one embodiment, the mating surface is perpendicular to the depth direction of the mounting groove.

[0016] In one embodiment, the reflectivity of at least one of the second reflective surface and the first reflective surface is higher than the reflectivity of other outer surfaces of the photovoltaic module frame; and / or, a protective layer is provided on the outer side of at least one of the second reflective surface and the first reflective surface.

[0017] In one embodiment, the mounting groove has a first groove wall and a second groove wall, the first groove wall and the second groove wall are arranged opposite to each other along the arrangement direction of the mounting part and the bearing part, and at least one of the first groove wall and the second groove wall is provided with a groove, the groove being in communication with the mounting groove.

[0018] This application also provides a photovoltaic module that can solve at least one of the above-mentioned technical problems.

[0019] A photovoltaic module includes a photovoltaic panel and a photovoltaic module frame, wherein the edge of the photovoltaic panel is inserted into a mounting groove in the photovoltaic module frame;

[0020] The photovoltaic panel includes solar cells. In the thickness direction of the photovoltaic panel, the projected edge of the end of the solar cell near the mounting portion is located within the projection of the second reflective surface, or coincides with the end of the second reflective surface on the side away from the support portion.

[0021] This application also provides a photovoltaic system capable of solving at least one of the above-mentioned technical problems.

[0022] A photovoltaic system includes a fastener and the aforementioned photovoltaic module frame. The fastener passes through the protrusion and is used to connect to a mounting surface to fix the photovoltaic module frame to the mounting surface. The fastener has an abutment surface on the side facing the protrusion, and a portion of the abutment surface is used to fit against a second reflective surface.

[0023] Beneficial effects:

[0024] The photovoltaic module frame provided in this application includes a mounting part and a supporting part. The mounting part has a mounting groove for fixing the edge of the photovoltaic panel, and the top of the mounting part has a surface A. The position of the surface A corresponds to the position of the side wall of the mounting groove. The end of the surface A near the photovoltaic panel has a first reflective surface. In the direction opposite to the depth direction of the mounting groove, the first reflective surface is inclined from the top of the mounting part to the end near the photovoltaic panel. The supporting part is connected to the side of the mounting part away from the surface A. The supporting part includes a first wall. Along the depth direction of the mounting groove, the first wall is a side wall of the supporting part near the photovoltaic panel. The end of the first wall away from the mounting part has a protrusion. The side of the protrusion facing the mounting part has a reflective structure. The reflective structure includes a second reflective surface. In the depth direction of the mounting groove, the second reflective surface is inclined, and the height of the end of the second reflective surface near the first wall is higher than the height of the end of the second reflective surface away from the first wall. In the direction opposite to the depth direction of the mounting groove, the first reflective surface is inclined from the top of the mounting part towards the end closer to the photovoltaic panel, so that the first reflective surface can reflect part of the light projected onto the mounting part to the solar cell. The second reflective surface is located below the mounting part, so that light passing through the gap between the mounting part and the solar cell can be projected onto the second reflective surface. Because the second reflective surface is inclined relative to the depth direction of the mounting groove, and the height of the end of the second reflective surface closer to the first wall is higher than the height of the end of the second reflective surface farther from the first wall, the second reflective surface can reflect part of the light from the gap between the mounting part and the solar cell to the solar cell, thereby increasing the amount of light absorbed and utilized by the solar cell, and improving the power and power generation efficiency of the photovoltaic module. The protrusion is located on the side away from the mounting part, so that there is a large distance between the protrusion and the mounting groove, thereby reducing interference when the photovoltaic panel is installed in the mounting groove and reducing the obstruction of light projected onto the solar cell.

[0025] This application also provides a photovoltaic module, including a photovoltaic panel and the aforementioned photovoltaic module frame. The edge of the photovoltaic panel is inserted into a mounting groove in the photovoltaic module frame. The photovoltaic panel includes solar cells. In the thickness direction of the photovoltaic panel, the projected edge of the end of the solar cell near the mounting portion lies within the projection of the second reflective surface, or coincides with the end of the second reflective surface away from the support portion. This photovoltaic module can achieve at least one of the aforementioned technical effects.

[0026] This application also provides a photovoltaic system, including a fastener and the aforementioned photovoltaic module frame. The fastener passes through a protrusion and is used to connect with a mounting surface to fix the photovoltaic module frame to the mounting surface. The fastener has an abutment surface on the side facing the protrusion, a portion of which is used to adhere to a second reflective surface. This photovoltaic system can achieve at least one of the aforementioned technical effects. Attached Figure Description

[0027] Figure 1This is a schematic diagram of a photovoltaic module frame provided in an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the reflection of light from the frame of a photovoltaic module according to an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of a photovoltaic module frame provided in another embodiment of this application.

[0030] Figure 4 This is a schematic diagram of a photovoltaic module frame provided in yet another embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the second reflective surface in the frame of a photovoltaic module provided in another embodiment of this application.

[0032] Figure 6 This is a schematic diagram illustrating the interaction between fasteners and the frame of a photovoltaic module in an embodiment of this application.

[0033] Figure 7 This is a schematic diagram showing the cooperation between fasteners and the photovoltaic module frame in a photovoltaic module system provided in another embodiment of this application.

[0034] Icon labels:

[0035] 10-Photovoltaic module frame; 100-Mounting part; 110-Mounting groove; 111-First groove wall; 112-Second groove wall; 113-Groove; 120-First reflective surface; 130-A-side; 200-Bearing part; 210-First wall; 220-Protrusion; 221-Second reflective surface; 222-Mating surface; 224-Auxiliary reflective surface; 230-Second wall; 240-Cavity; 250-Reflective structure; 300-Photovoltaic panel; 310-Battery cell; 400-Fastener; 410-Fastening rod; 420-Gasket; 430-Abutting surface. Detailed Implementation

[0036] 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.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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.

[0038] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] 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 according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through 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. "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.

[0041] It should be noted that when 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. When 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0042] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a photovoltaic module frame provided in an embodiment of this application. Figure 2 This is a schematic diagram illustrating the reflection of light by a photovoltaic module frame according to an embodiment of this application. The photovoltaic module frame provided in this embodiment includes a mounting portion 100 and a supporting portion 200. The mounting portion 100 has a mounting groove 110 for fixing the edge of a photovoltaic panel 300. The top of the mounting portion 100 has an A-surface 130, the position of which corresponds to the position of the groove sidewall of the mounting groove 110. A first reflective surface 120 is provided at the end of the A-surface 130 near the photovoltaic panel 300. In a direction opposite to the depth direction of the mounting groove 110, the first reflective surface 120 is inclined from the top of the mounting portion 100 towards the end near the photovoltaic panel 300. The supporting portion 200 is located away from the mounting portion 100 from the A-surface 130. The support portion 200 includes a first wall 210. Along the depth direction of the mounting groove 110, the first wall 210 is a side wall of the support portion 200 near the photovoltaic panel 300. The end of the first wall 210 away from the mounting portion 100 is provided with a protrusion 220. The side of the protrusion 220 facing the mounting portion 100 has a reflective structure 250. The reflective structure 250 includes a second reflective surface 221. In the depth direction of the mounting groove 110, the second reflective surface 221 is inclined, and the height of the end of the second reflective surface 221 near the first wall 210 is higher than the height of the end of the second reflective surface 221 away from the first wall 210.

[0043] Specifically, in the direction opposite to the depth direction of the mounting groove 110, the first reflective surface 120 is inclined from the top of the mounting part 100 toward the end near the photovoltaic panel 300, so that the first reflective surface 120 can reflect part of the light projected onto the mounting part 100 to the solar cell 310. The second reflective surface 221 is disposed below the mounting part 100, so that the light passing through the gap between the mounting part 100 and the solar cell 310 can be projected onto the second reflective surface 221. Since the second reflective surface 221 is inclined relative to the depth direction of the mounting groove 110, and the height of the end of the second reflective surface 221 near the first wall 210 is higher than the height of the end of the second reflective surface 221 away from the first wall 210, the second reflective surface 221 can reflect the light through the gap between the mounting part 100 and the solar cell 310 to the solar cell 310, thereby increasing the amount of light absorbed and utilized by the solar cell 310 and improving the power and power generation efficiency of the photovoltaic module. The protrusion 220 is located on the side away from the mounting portion 100, resulting in a larger gap between the protrusion 220 and the photovoltaic panel 300. This reduces interference when the photovoltaic panel 300 is installed in the mounting groove 110 and also reduces the obstruction of light projected onto the solar cell 310. Preferably, both the first reflective surface 120 and the second reflective surface 221 are mirrors. The supporting portion 200 has a cavity 240 located below the mounting portion 100.

[0044] See Figure 1 and Figure 2 In one embodiment, the acute angle formed by the second reflective surface 221 and the depth direction of the mounting groove 110 has a first angle β, which is 0°-45°, so that the second reflective surface 221 can reflect a wider range of light to the back of the battery cell 310, and can utilize as much light as possible.

[0045] See Figure 1 and Figure 2 In one embodiment, the second reflective surface 221 is integrally formed with the first wall 210, and the second reflective surface 221 is connected to the first wall 210; or, the second reflective surface 221 and the first wall 210 are separately provided, and the second reflective surface 221 abuts against the first wall 210.

[0046] Specifically, the end of the second reflective surface 221 near the support portion 200 abuts against or connects with the first wall 210, thereby maximally aligning the second reflective surface 221 with the gap between the battery cell 310 and the mounting portion 100. This allows the second reflective surface 221 to receive more light from the gap between the battery cell 310 and the mounting portion 100, thus reflecting more light to the back of the battery cell 310. In this embodiment, the connection between the second reflective surface 221 and the first wall 210 is used as an example for explanation.

[0047] See Figure 1 and Figure 2 In one embodiment, in the arrangement direction of the mounting portion 100 and the supporting portion 200, the first wall 210 is flush with the groove edge of the mounting groove 110 or recessed relative to the groove edge of the mounting groove 110, thereby preventing the supporting portion 200 from blocking the light passing through the gap between the mounting portion 100 and the battery cell 310, thereby increasing the light range received by the second reflective surface 221 and improving the amount of light absorbed and utilized by the battery cell 310.

[0048] See Figure 1 and Figure 2 In one embodiment, along the depth direction of the mounting groove 110, there is a first dimension between the two ends of the second reflective surface 221. The photovoltaic panel 300 is provided with a battery cell 310. The side of the battery cell 310 facing the mounting groove 110 has a second dimension between it and the groove edge of the mounting groove 110. The first dimension is greater than or equal to the second dimension. That is, in the arrangement direction of the mounting part 100 and the supporting part 200, the projected outline of the second reflective surface 221 falls within the projected outline of the battery cell 310 or coincides with the projected outer outline of the battery cell 310, thereby increasing the range of light received by the second reflective surface 221 and increasing the amount of light absorbed and utilized by the battery cell 310.

[0049] Furthermore, an auxiliary reflective surface 224 is provided on the side of the protrusion 220 facing the mounting portion 100. The auxiliary reflective surface 224 is located on the side of the second reflective surface 221 near the photovoltaic panel 300, and the auxiliary reflective surface 224 is continuous with the second reflective surface 221. The auxiliary reflective surface 224 can reflect a portion of the light below the photovoltaic panel 300 to the solar cell 310. The first wall 210 can also reflect a portion of the light below the photovoltaic panel 300 to the solar cell 310.

[0050] See Figure 2 and Figure 3 , Figure 3 This is a schematic diagram of a photovoltaic module frame according to another embodiment of this application. In one embodiment, the second reflective surface 221 is any one of a plane, a curved surface, and a wavy surface. When the second reflective surface 221 is a curved or wavy surface, the first angle is the angle between the line connecting the two endpoints of the second reflective surface 221 on the first plane and the depth direction of the mounting groove 110, wherein the first plane is parallel to the depth direction of the mounting groove 110 and parallel to the arrangement direction of the mounting portion 100 and the supporting portion 200.

[0051] See Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of a photovoltaic module frame provided in yet another embodiment of this application. Figure 5This is a schematic diagram of the second reflective surface in a photovoltaic module frame according to another embodiment of this application. In yet another embodiment, the reflective structure 250 further includes a mating surface 222. Multiple mating surfaces 222 and multiple second reflective surfaces 221 are arranged alternately along the depth direction of the mounting groove 110 on the side of the protrusion 220 facing the mounting portion 100. Any adjacent mating surfaces 222 and second reflective surfaces 221 are arranged at an angle, making the side of the reflective structure 250 facing the mounting portion 100 nearly a single plane. This facilitates mating with fasteners such as bolts to fix the photovoltaic module frame 10 to a mounting surface such as a purlin. Compared to other embodiments of this application where the reflective structure only includes a first reflective surface, the solution in this embodiment improves the compatibility of the reflective structure 250 with fasteners such as bolts, thereby improving the adaptability of the photovoltaic module frame 10.

[0052] Furthermore, in the depth direction of the mounting groove 110, the size of the second reflective surface 221 is larger than the size of the mating surface 222, thereby allowing the second reflective surface 221 to receive more light. For example, in the depth direction of the mounting groove 110, the size of the mating surface 222 is half the size of the second reflective surface 221. The mating surface 222 can be curved or flat. It should be noted that, due to manufacturing limitations, the connection between any adjacent mating surfaces 222 and the second reflective surface 221 can be rounded.

[0053] See Figure 1 , Figure 4 and Figure 5 The mating surface 222 is perpendicular to the depth direction of the mounting groove, which allows the second reflective surface 221 to have a larger dimension in the depth direction of the mounting groove 110, so that the second reflective surface 221 can receive more light.

[0054] See Figure 1 and Figure 2 In one embodiment, the support portion 200 has a second wall 230, which is a side wall of the support portion 200 away from the mounting portion 100, and the side of the protrusion 220 away from the mounting portion 100 is flush with the first wall 210.

[0055] Specifically, the side of the protrusion 220 facing away from the mounting part 100 is flush with the first wall 210 to abut against the mounting surface such as the purlin, thereby improving the support stability of the bearing part 200.

[0056] It should be noted that in the prior art, a protrusion 220 flush with its second wall 230 is often provided at the end of the support portion 200 near the photovoltaic panel 300, so as to connect with the mounting surface such as the purlin through fastening accessories such as bolts. Compared with the method of additionally setting a protrusion on the frame to form a reflective structure, in this application, the second reflective surface 221 is directly set on the protrusion 220, so that there is no need to set additional components on the support portion 200 for supporting the second reflective surface 221, thereby saving materials, simplifying the process, and making the structure simpler.

[0057] See Figure 1 and Figure 2 In one embodiment, the acute angle formed by the first reflective surface 120 and the depth direction of the mounting groove 110 has a second angle α, which is 45°-90°, so that the first reflective surface 120 can reflect a wider range of light to the back of the battery cell 310, and can utilize as much light as possible.

[0058] Furthermore, the end of the first reflective surface 120 near the photovoltaic panel 300 is connected to the side wall of the mounting groove 110, so that the first reflective surface 120 can receive a wider range of light.

[0059] See Figure 2 and Figure 3 In one embodiment, the first reflective surface 120 is any one of a plane, a curved surface, and a wavy surface. When the first reflective surface 120 is a curved surface or a wavy surface, the second angle is the angle between the line connecting the two endpoints of the first reflective surface 120 on the first plane and the depth direction of the mounting groove 110.

[0060] See Figure 1 and Figure 2 In one embodiment, at least one of the second reflective surface 221 and the first reflective surface 120 has a higher reflectivity than the other outer surfaces of the photovoltaic module frame, so that the second reflective surface 221 and the first reflective surface 120 reflect more light to the solar cell 310. Preferably, both the second reflective surface 221 and the first reflective surface 120 have higher reflectivity than the other outer surfaces of the photovoltaic module frame. The reflectivity is measured using a UV-Vis spectrophotometer, and the measured reflectivity is the average reflectivity in the wavelength range of 300-1200 nm.

[0061] Furthermore, at least one of the second reflective surface 221 and the first reflective surface 120 is provided with a reflective layer, which includes either a mirror-finish reflective coating or a reflective film. Preferably, the reflective coating is an aluminized reflective coating; the reflective film is an aluminized reflective film. In other embodiments, the reflective layer can also be obtained by mirror polishing.

[0062] The reflective layer is disposed on an unblasted aluminum alloy substrate to form a second reflective surface 221 and a first reflective surface 120.

[0063] See Figure 1 and Figure 2 In one embodiment, a protective layer is provided on the outer side of at least one of the second reflective surface 221 and the first reflective surface 120 to protect the reflective layer. This protection can be achieved using methods such as anodic / chemical oxidation sealing or surface coating. Preferably, a protective layer is provided on the outer side of both the second reflective surface 221 and the first reflective surface 120.

[0064] See Figure 1 and Figure 2 In one embodiment, the mounting groove 110 has a first groove wall 111 and a second groove wall 112, which are arranged opposite to each other along the arrangement direction of the mounting portion 100 and the supporting portion 200. At least one of the first groove wall 111 and the second groove wall 112 is provided with a groove 113, which communicates with the mounting groove 110. The groove 113 can accommodate adhesive disposed between the first groove wall 111 or the second groove wall 112 and the edge of the photovoltaic panel 300, thereby reducing adhesive overflow and minimizing shading of the photovoltaic panel 300 in the area between the mounting portion 100 and the solar cell 310. This maximizes the light utilization rate within the gap between the mounting portion 100 and the solar cell 310, improving the power and efficiency of the photovoltaic module. Preferably, both the first groove wall 111 and the second groove wall 112 are provided with grooves 113.

[0065] See Figure 1 and Figure 2 This application also provides a photovoltaic module, including the aforementioned photovoltaic module frame 10, with the edge of the photovoltaic panel 300 inserted into the mounting groove 110 of the photovoltaic module frame. The photovoltaic panel 300 includes a solar cell 310. In the thickness direction of the photovoltaic panel 300, the projected edge of the end of the solar cell 310 near the mounting portion 100 is located within the projection of the second reflective surface 221, or coincides with the end of the second reflective surface 221 on the side away from the support portion 200. This allows for maximum reception of vertical light projected from the gap between the solar cell 310 and the photovoltaic module frame 10 while saving materials, thereby increasing the amount of light absorbed and utilized by the solar cell 310 and improving the power and power generation efficiency of the photovoltaic module.

[0066] See Figure 2 and Figure 6 , Figure 6This is a schematic diagram illustrating the engagement between a fastener and a photovoltaic module frame in a photovoltaic module system according to an embodiment of this application. This application also provides a photovoltaic system including a fastener 400 and the aforementioned photovoltaic module frame 10. The fastener 400 passes through a protrusion 220 and is used to connect to a mounting surface to fix the photovoltaic module frame 10 to the mounting surface. The fastener 400 has an abutment surface 430 on the side facing the protrusion 220. A portion of the abutment surface 430 is used to contact a second reflective surface 221, thereby improving the stability of the fastener 400 in fixing the photovoltaic module frame 10 to the mounting surface, thus stably supporting the photovoltaic panel 300. Specifically, a portion of the abutment surface 430 contacts the second reflective surface 221, and a portion of the abutment surface 430 contacts an auxiliary reflective surface 224.

[0067] Furthermore, the fastener 400 includes a fastening rod 410 and a washer 420. The fastening rod 410 passes through the protrusion 220, and the washer 420 is sleeved on the fastening rod 410 and located between the fastening rod 410 and the protrusion 220. The abutment surface 430 is located on the side of the washer 420 facing the protrusion 220. That is, the fastening rod 410 and the protrusion 220 are engaged by a specially designed washer 420. Preferably, the fastening rod 410 is a bolt.

[0068] See Figure 4 and Figure 7 , Figure 7 This is a schematic diagram illustrating the engagement between a fastener and the photovoltaic module frame in a photovoltaic module system according to another embodiment of this application. In yet another embodiment, the fastener 400 abuts against the intersection of the second reflective surface 221 and the mating surface 222, thus eliminating the need for a special gasket 420 or a fastening rod 410; that is, ordinary bolts or other fastening accessories can be used to stably fix the photovoltaic module frame 10 to the mounting surface.

[0069] 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.

[0070] 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 frame, characterized in that, The photovoltaic module frame includes: The mounting part is provided with a mounting groove for fixing the edge of the photovoltaic panel, and the top of the mounting part has an A surface, the position of which corresponds to the position of the side wall of the mounting groove. The end of the A surface near the photovoltaic panel is provided with a first reflective surface, and in a direction opposite to the depth direction of the mounting groove, the first reflective surface is inclined from the top of the mounting part toward the end near the photovoltaic panel. The support portion is connected to the side of the mounting portion away from the A-side. The support portion includes a first wall along the depth direction of the mounting groove. The first wall is a side wall of the support portion near the photovoltaic panel. The end of the first wall away from the mounting portion has a protrusion. The side of the protrusion facing the mounting portion has a reflective structure. The reflective structure includes a second reflective surface. In the depth direction of the mounting groove, the second reflective surface is inclined, and the height of the end of the second reflective surface near the first wall is higher than the height of the end of the second reflective surface away from the first wall.

2. The photovoltaic module frame according to claim 1, characterized in that, The acute angle formed by the second reflective surface and the depth direction of the mounting groove has a first angle, which is 0°-45°; and / or, the acute angle formed by the first reflective surface and the depth direction of the mounting groove has a second angle, which is 45°-90°.

3. The photovoltaic module frame according to claim 1, characterized in that, The second reflective surface is integrally formed with the first wall, and the second reflective surface is connected to the first wall; or, the second reflective surface is separately provided from the first wall, and the second reflective surface abuts against the first wall.

4. The photovoltaic module frame according to claim 3, characterized in that, In the arrangement direction of the mounting part and the bearing part, the first wall is flush with the groove edge of the mounting groove or recessed relative to the groove edge of the mounting groove.

5. The photovoltaic module frame according to claim 4, characterized in that, Along the depth direction of the mounting groove, there is a first dimension between the two ends of the second reflective surface, and the photovoltaic panel is provided with a battery cell, and there is a second dimension between the side of the battery cell facing the mounting groove and the groove edge of the mounting groove; The first dimension is greater than or equal to the second dimension.

6. The photovoltaic module frame according to claim 1, characterized in that, At least one of the first reflective surface and the second reflective surface is any one of a plane, a curved surface, and a wave surface.

7. The photovoltaic module frame according to claim 1, characterized in that, The reflective structure further includes mating surfaces, and there are multiple mating surfaces and second reflective surfaces. The mating surfaces and second reflective surfaces are alternately arranged on the side of the protrusion facing the mounting part along the depth direction of the mounting groove, and any adjacent mating surfaces and second reflective surfaces are arranged at an angle. In the depth direction of the mounting groove, the size of the second reflective surface is larger than the size of the mating surface.

8. The photovoltaic module frame according to claim 7, characterized in that, The mating surface is perpendicular to the depth direction of the mounting groove.

9. The photovoltaic module frame according to any one of claims 1-8, characterized in that, The reflectivity of at least one of the second reflective surface and the first reflective surface is higher than the reflectivity of the other outer surfaces of the photovoltaic module frame; and / or, a protective layer is provided on the outer side of at least one of the second reflective surface and the first reflective surface.

10. The photovoltaic module frame according to any one of claims 1-8, characterized in that, The mounting groove has a first groove wall and a second groove wall, which are arranged opposite to each other along the arrangement direction of the mounting part and the bearing part. At least one of the first groove wall and the second groove wall is provided with a groove, which communicates with the mounting groove.

11. A photovoltaic module, characterized in that, The photovoltaic module includes a photovoltaic panel and a photovoltaic module frame as described in any one of claims 1-10, wherein the edge of the photovoltaic panel is inserted into a mounting groove in the photovoltaic module frame; The photovoltaic panel includes solar cells. In the thickness direction of the photovoltaic panel, the projected edge of the end of the solar cell near the mounting portion is located within the projection of the second reflective surface, or coincides with the end of the second reflective surface on the side away from the support portion.

12. A photovoltaic system, characterized in that, The device includes a fastener and a photovoltaic module frame as described in any one of claims 1-10. The fastener passes through the protrusion and is used to connect with a mounting surface to fix the photovoltaic module frame to the mounting surface. The fastener has an abutment surface on the side facing the protrusion, and a portion of the abutment surface is used to fit against the second reflective surface.

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