Photovoltaic module

Abstract

The embodiment of the present application relates to the field of photovoltaic cells, and provides a photovoltaic module, comprising: a photovoltaic laminate; a photovoltaic frame, comprising: a first frame, the first frame is arranged at a first edge, the first frame comprises a first upper clamping part and a first mounting base which are oppositely arranged in a third direction and clamp upper and lower surfaces of the photovoltaic laminate; a second frame, the second frame is arranged at a second edge, the second frame comprises a second upper clamping part and a second mounting base which are oppositely arranged in the third direction and clamp upper and lower surfaces of the photovoltaic laminate, and a second connecting part connecting the second upper clamping part and the second mounting base, and a second glue overflow groove is arranged on the second connecting part; wherein the length of the first frame is greater than the length of the second frame, and the width of the first upper clamping part is greater than the width of the second upper clamping part. The embodiment of the present application is at least beneficial to solve the problem of water accumulation on the surface of the module and ensure the stability of the structure of the module.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cells, and in particular to a photovoltaic module. Background Technology

[0002] With the continuous development of photovoltaic technology, photovoltaic modules, as the core component of solar power generation systems, have always been a focus of industry research in terms of structural design and performance optimization.

[0003] Currently, photovoltaic modules typically consist of photovoltaic laminates and frames. The frames not only protect the photovoltaic laminates but also improve the mechanical strength of the module and facilitate installation and fixation.

[0004] However, related technologies either use frames with an A-side frame (i.e., a frame with a clamping part on the front of the photovoltaic tile) or frames without an A-side frame. While using frames with an A-side frame provides better mechanical strength and protection, it easily leads to water and dust accumulation on the module surface, affecting power generation efficiency and lifespan. Using frames without an A-side frame avoids water and dust accumulation problems, but the module's load-bearing capacity is affected, and gaps can easily form between the frame and the photovoltaic laminate, affecting the module's sealing and durability.

[0005] Therefore, there is an urgent need for a photovoltaic module that can solve the problem of dust and water accumulation on the module surface while ensuring the structural stability of the module. Summary of the Invention

[0006] This application provides a photovoltaic module that at least helps to solve the problem of dust and water accumulation on the module surface and ensures the stability of the module structure.

[0007] According to some embodiments of this application, one aspect of this application provides a photovoltaic module, including: a photovoltaic laminate, the photovoltaic laminate having intersecting first direction, second direction and third direction, the third direction being the thickness direction of the photovoltaic laminate; the photovoltaic laminate having a first edge disposed opposite to each other in the first direction, and a second edge disposed opposite to each other in the second direction; the length of the first edge is greater than the length of the second edge; a photovoltaic frame, the photovoltaic frame including: a first frame, the first frame being disposed on the first edge, the first frame including a first upper clamping portion disposed opposite to each other in the third direction and clamping the upper and lower surfaces of the photovoltaic laminate. The first mounting base and the second frame are disposed at the second edge. The second frame includes a second upper clamping part and a second mounting base that are disposed opposite to each other in the third direction and clamp the upper and lower surfaces of the photovoltaic element, and a second connecting part that connects the second upper clamping part and the second mounting base. A second overflow groove extending in the second direction is provided on the side surface of the second connecting part facing the photovoltaic laminate. The length of the first frame in the second direction is greater than the length of the second frame in the first direction, the width of the first upper clamping part in the first direction is greater than the width of the second upper clamping part in the second direction, and the thickness of the first upper clamping part is 1mm to 2mm.

[0008] In some embodiments, the ratio between the width of the first upper clamping portion and the width of the second upper clamping portion is 1.2 to 2.5.

[0009] In some embodiments, the width of the first upper clamping portion is 10mm to 20mm, and the width of the second upper clamping portion is 5mm to 10mm.

[0010] In some embodiments, the ratio between the width of the first upper clamping portion and the length of the photovoltaic laminate in the first direction is 0.05 to 0.15; the ratio between the width of the second upper clamping portion and the length of the photovoltaic laminate in the second direction is 0.03 to 0.1.

[0011] In some embodiments, the first frame further includes a first connecting portion connecting the first upper clamping portion and the first mounting base; the second frame further includes a second connecting portion connecting the second upper clamping portion and the second mounting base.

[0012] In some embodiments, a plurality of second overflow grooves extending along the second direction are provided on the side surface of the second connection portion facing the photovoltaic laminate, and the plurality of overflow grooves are arranged at intervals along the third direction.

[0013] In some embodiments, the photovoltaic frame is made of at least one of aluminum alloy, stainless steel, glass, or polymer materials.

[0014] In some embodiments, a first overflow groove is provided on the side of the first upper clamping portion facing the photovoltaic laminate.

[0015] In some embodiments, the photovoltaic laminate includes: a photovoltaic cell; an encapsulating film covering the surface of the photovoltaic cell; and a cover plate located on the surface of the encapsulating film away from the photovoltaic cell.

[0016] The technical solution provided in this application has at least the following advantages: Firstly, by providing upper clamping portions on both the first frame (long side) and the second frame (short side) of the photovoltaic frame, and wherein the width of the first upper clamping portion on the first frame is greater than the width of the first upper clamping portion on the second frame, the load-bearing performance of the module is ensured to remain unaffected. Secondly, the second frame on the short side uses a smaller second upper clamping portion, whose width and thickness are significantly reduced compared to conventional frames, effectively reducing water and dust accumulation on the module surface. Thirdly, the presence of upper clamping portions on both the first and second frames of the photovoltaic frame solves the gap problem between the frame without an A-side and the photovoltaic laminate in related technologies, preventing moisture from entering the gap between the frame and the photovoltaic laminate, thereby preventing water accumulation on the back of the photovoltaic module, improving the waterproofing and water accumulation performance of the photovoltaic module, and ultimately extending its service life.

[0017] A second overflow groove is provided on the second connecting part of the second frame. On the one hand, this avoids the second upper clamping part being too thick, which would prevent water or dust from accumulating on the photovoltaic module and thus avoid the problem of photovoltaic laminate photoelectric conversion efficiency caused by water and dust accumulation on the surface of the photovoltaic laminate. On the other hand, the second overflow groove prevents water from seeping into the back of the photovoltaic module from the gap between the frame and the photovoltaic laminate, thus preventing water accumulation on the back of the photovoltaic module and improving the service life of the photovoltaic module. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with corresponding pictures in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Unless otherwise stated, the pictures in the accompanying drawings do not constitute a limitation on scale. In order to more clearly illustrate the technical solutions in the embodiments of this application or in the conventional technology, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of a photovoltaic module provided in an embodiment of this application; Figure 2 A cross-sectional structural diagram of a first frame and a photovoltaic laminate in a photovoltaic module provided in this application embodiment; Figure 3 This is a cross-sectional structural diagram of a second frame and a photovoltaic laminate in a photovoltaic module provided in an embodiment of this application.

[0020] In the figure: 100, photovoltaic laminate; 101, first edge; 102, second edge; 200, photovoltaic frame; 210, first frame; 211, first upper clamping part; 2111, first overflow groove; 212, first mounting base; 2121, first fixing plate; 213, first connecting part; 220, second frame; 221, second upper clamping part; 222, second mounting base; 2221, second fixing plate; 223, second connecting part; 2231, second overflow groove. Detailed Implementation

[0021] As can be seen from the background technology, the A-side frame commonly used in photovoltaic modules in related technologies is wide and thick, which can lead to the accumulation of dust and water on the surface of the photovoltaic module. Although the absence of an A-side frame can avoid the problem of water and dust accumulation, the lack of a front component to hold the photovoltaic laminate will affect the load performance of the photovoltaic module. At the same time, gaps are easily generated between the frame and the photovoltaic laminate, affecting the sealing and durability of the photovoltaic module.

[0022] This application provides a semiconductor structure in which upper clamping portions are provided on both the first frame (long side) and the second frame (short side) of the photovoltaic frame. The width of the first upper clamping portion on the first frame is greater than the width of the first upper clamping portion on the second frame. Firstly, this ensures that the load-bearing capacity of the module is not affected. Secondly, the second frame on the short side uses a smaller second upper clamping portion, whose width and thickness are significantly reduced compared to conventional frames, effectively reducing water and dust accumulation on the module surface. Thirdly, the presence of upper clamping portions on both the first and second frames of the photovoltaic frame solves the gap problem between the frame without an A-side and the photovoltaic laminate in related technologies, preventing moisture from entering the gap between the frame and the photovoltaic laminate, thereby preventing water accumulation on the back of the photovoltaic module, improving the waterproofing and water accumulation resistance of the photovoltaic module, and ultimately extending its service life.

[0023] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined. Similarly, "multiple sets" refers to two or more sets (including two sets), and "multiple pieces" refers to two or more pieces (including two pieces).

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0026] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application. For example, if the device or element in the illustration is inverted, then the element described as "below," "under," "below," or "bottom" of other elements or features will be oriented "above" or "top" of said other elements or features. Therefore, the term "below" may cover both above and below orientation depending on the context in which the term is used, which will be obvious to those skilled in the art. Materials may be oriented in other ways (e.g., rotated 90 degrees, inverted, flipped), and the spatial relative descriptive terms used herein may be interpreted accordingly.

[0027] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0028] In the description of embodiments of this application, the terms "about," "approximately," "roughly," or "about" for a numerical value referring to a specific parameter include the numerical value, and those skilled in the art will understand that the deviation from the numerical value is within the acceptable tolerance of the specific parameter. For example, "about" or "about" for a numerical value may include additional numerical values ​​that are in the range of 90.0% to 110.0% of the numerical value, such as in the range of 95.0% to 105.0%, 97.5% to 102.5%, 99.0% to 101.0%, 99.5% to 100.5%, or 99.9% to 100.1%.

[0029] In the accompanying drawings corresponding to the embodiments of this application, the thickness and area of ​​the layers are enlarged for better understanding and ease of description. Furthermore, when describing a component as "generally" formed on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor is it formed on a portion of the edge of the entire surface.

[0030] In the description of the embodiments of this application, when a component "includes" another component, other components are not excluded unless otherwise stated, and other components may be further included. The formation or provision of a second component above or on a first component, or on the surface of a first component, or on one side of a first component, may include embodiments where the first and second components are in direct contact, and may also include embodiments where an additional component may be present between the first and second components, thereby preventing direct contact between the first and second components. For simplicity and clarity, various components may be drawn at different scales. In the drawings, some layers / components may be omitted for simplicity. Unless otherwise specified, the formation or provision of a second component on the surface of a first component refers to direct contact between the first and second components. The term "component" may refer to a layer, film, region, portion, structure, etc.

[0031] The terminology used in the description of the various embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various embodiments and the appended claims, the term "component" is also intended to include the plural form unless the context clearly indicates otherwise. Components include layers, films, regions, or plates, etc.

[0032] The embodiments of this application will now be described in detail with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0033] Figures 1 to 3 This is a schematic diagram of the semiconductor structure provided in an embodiment of this application.

[0034] refer to Figures 1 to 3 The semiconductor structure includes: a photovoltaic laminate 100, the photovoltaic laminate 100 having intersecting first direction X, second direction Y, and third direction Z, the third direction Z being the thickness direction of the photovoltaic laminate 100; the photovoltaic laminate 100 having opposing first edges 101 in the first direction X, and opposing second edges 102 in the second direction Y; the length of the first edge 101 is greater than the length of the second edge 102; and a photovoltaic frame 200, the photovoltaic frame 200 including: a first frame 210, the first frame 210 being disposed on the first edge 101. 01, the first frame 210 includes a first upper clamping part 211 and a first mounting base 212 that are relatively disposed and clamp the upper and lower surfaces of the photovoltaic laminate 100 in the third direction Z; the second frame 220 is disposed on the second edge 102, and the second frame 220 includes a second upper clamping part 221 and a second mounting base 222 that are relatively disposed and clamp the upper and lower surfaces of the photovoltaic laminate in the third direction Z; wherein, the length of the first frame 210 is greater than the length of the second frame 220, and the width of the first upper clamping part 211 is greater than the width of the second upper clamping part 221.

[0035] This embodiment of the application provides upper clamping portions on both the first frame 210 (long side) and the second frame 220 (short side) of the photovoltaic frame 200. The width of the first upper clamping portion 211 of the first frame 210 is greater than the width of the first upper clamping portion 211 of the second frame 220. Firstly, this ensures that the load-bearing capacity of the module is not affected. Secondly, the second frame 220 on the short side uses a smaller second upper clamping portion 221, whose width and thickness are significantly reduced compared to conventional frames, effectively reducing water and dust accumulation on the module surface. Thirdly, the presence of upper clamping portions on both the first frame 210 and the second frame 220 of the photovoltaic frame 200 solves the gap problem between the frame without an A-side and the photovoltaic laminate 100 in related technologies, preventing moisture from entering the gap between the frame and the photovoltaic laminate 100, thereby preventing water accumulation on the back of the photovoltaic module, improving the waterproofing and water accumulation resistance of the photovoltaic module, and ultimately extending its service life.

[0036] It should be noted that, Figure 1 This is a top view of a photovoltaic module provided in an embodiment of this application; Figure 2 A cross-sectional structural diagram of a first frame 210 and a photovoltaic laminate 100 in a photovoltaic module provided for an embodiment of this application; Figure 3 This is a cross-sectional structural diagram of the second frame 220 and the photovoltaic laminate 100 in a photovoltaic module provided in an embodiment of this application.

[0037] The embodiments of this application will be described in more detail below with reference to the accompanying drawings.

[0038] like Figure 1 As shown, the photovoltaic module includes a photovoltaic laminate 100 and a photovoltaic frame 200 disposed around the photovoltaic laminate 100.

[0039] The photovoltaic laminate 100 includes a photovoltaic cell, an encapsulating film, and a cover plate. The photovoltaic cell exhibits the photoelectric effect, enabling it to convert light energy into electrical energy. The photovoltaic cell has opposing light-receiving and back-light-receiving surfaces in the third direction Z, with the light-receiving surface facing the direction of receiving light.

[0040] It should be noted that a photovoltaic cell can be a single-sided cell, where the light-receiving side is used to receive light; a photovoltaic cell can also be a bi-sided cell, where both the light-receiving side and the back-lighting side can be used to receive incident light. It is understood that the back-lighting side described in the embodiments of this application can also receive incident light, but the degree of reception of incident light is weaker than that of the light-receiving side, and therefore it is defined as the back-lighting side.

[0041] The encapsulating film can be made of ethylene. Organic encapsulation films such as vinyl acetate copolymer (EVA) film, polyvinyl octene copolymer (POE) film, or polyvinyl butyral (PVB) film.

[0042] The cover plate can be a glass cover plate, a plastic cover plate, or other cover plate with light transmission function. In some embodiments, the surface of the cover plate facing the adhesive film can be an uneven surface, thereby increasing the utilization rate of incident light.

[0043] The photovoltaic laminate 100 has a square sheet structure. It has opposing first edges 101 in the first direction X and opposing second edges 102 in the second direction Y, wherein the length of the first edge 101 is greater than the length of the second edge 102. The photovoltaic frame 200 has a square frame structure and surrounds the photovoltaic laminate 100. The photovoltaic frame 200 includes a first frame 210 opposing each other in the first direction X and extending along the second direction Y, and a second frame 220 opposing each other in the second direction Y and extending along the first direction X. Adjacent first frames 210 and second frames 220 are contacted and connected to form a square annular photovoltaic frame 200. The first frame 210 is located at the first edge 101 of the photovoltaic laminate 100, and the second frame 220 is located at the second edge 102 of the photovoltaic laminate 100. Correspondingly, the length of the first frame 210 is greater than the length of the second frame 220.

[0044] Reference Figure 2 , Figure 3 As shown, the first frame 210 includes a first upper clamping portion 211 and a first mounting base 212 disposed on opposite sides of the photovoltaic laminate 100 in the third direction Z, and a first connecting portion 213 disposed on the outer edge of the photovoltaic laminate 100 and connecting the first upper clamping portion 211 and the first mounting base 212. The first upper clamping portion 211 is disposed on one side of the light-receiving surface of the photovoltaic laminate 100, and the first mounting base 212 is disposed on one side of the backlight surface of the photovoltaic laminate 100. The first mounting base 212 provides support for the photovoltaic booster module, and the first upper clamping portion 211 applies downward pressure to the photovoltaic laminate 100, so that the first upper clamping portion 211 and the first mounting base 212 clamp the first edge 101 of the photovoltaic laminate 100, thereby fixing the first edge 101 of the photovoltaic laminate 100.

[0045] The second frame 220 includes a second upper clamping portion 221 and a second mounting base 222 disposed on opposite sides of the photovoltaic laminate 100 in a third direction Z, and a second connecting portion 223 disposed on the outer edge of the photovoltaic laminate 100 and connecting the second upper clamping portion 221 and the second mounting base 222. The second upper clamping portion 221 is disposed on one side of the light-receiving surface of the photovoltaic laminate 100, the second mounting base 222 provides support for the photovoltaic booster module, the second upper clamping portion 221 applies downward pressure to the photovoltaic laminate 100 so that the second mounting base 222 is disposed on one side of the backlight surface of the photovoltaic laminate 100, and the second upper clamping portion 221 and the second mounting base 222 clamp the second edge 102 of the photovoltaic laminate 100 to fix the second edge 102 of the photovoltaic laminate 100.

[0046] In this design, the width of the first upper clamping portion 211 of the first frame 210 is greater than the width of the second upper clamping portion 221. On the one hand, the smaller size of the second upper clamping portion 221 on one side of the photovoltaic frame 200 allows water and dust to drain from the surface of the photovoltaic laminate 100 from the photovoltaic frame 200 on that side, avoiding the problem of dust and water accumulation. On the other hand, the larger size of the first upper clamping portion 211 ensures the clamping effect of the first frame 210 on the photovoltaic laminate 100, improving the overall structural stability of the photovoltaic module and avoiding the risk of the photovoltaic laminate 100 detaching from the frame without side A in related technologies. Furthermore, the smaller size of the second upper clamping portion 221 can reduce the overall weight of the photovoltaic module, reduce material costs, and improve the aesthetics of the photovoltaic module.

[0047] The photovoltaic module provided in this embodiment has a first frame 210 and a second frame 220 respectively provided on the first edge 101 and the second edge 102 of the photovoltaic laminate 100. The length of the first frame 210 is greater than the length of the second frame 220, and the width of the first upper clamping part 211 is greater than the width of the second upper clamping part 221. This allows the photovoltaic module to have different structural characteristics in the first direction X and the second direction Y, so that it can adapt to the needs of different installation environments.

[0048] In some embodiments, the ratio between the width of the first upper clamping portion 211 and the width of the second upper clamping portion 221 is 1.2 to 2.5. Optionally, the ratio between the width of the first upper clamping portion 211 and the width of the second upper clamping portion 221 is 1.5 to 2, and the ratio between the width of the first upper clamping portion 211 and the width of the second upper clamping portion 221 can be 1.5, 1.6, 1.7, 1.8, 1.9 or 2.

[0049] In some embodiments, the width of the first upper clamping portion 211 is 10mm to 20mm. Optionally, the width of the first upper clamping portion 211 is 12mm to 18mm, and the width of the first upper clamping portion 211 can be 12mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm or 18mm.

[0050] In some embodiments, the width of the second upper clamping portion 221 is 5mm to 10mm. Optionally, the width of the second upper clamping portion 221 is 6mm to 9mm, and the width of the second upper clamping portion 221 can be 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm or 9mm.

[0051] In some embodiments, the thickness of the second upper clamping portion 221 is 1mm to 2mm. Optionally, the thickness of the second upper clamping portion 221 is 1.2mm to 1.8mm, and the width of the second upper clamping portion 221 can be 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, or 1.8mm. Setting the thickness of the second upper clamping portion 221 to 1mm to 2mm allows accumulated dust or water on the surface of the photovoltaic laminate 100 to pass through and drain from the upper surface of the second upper clamping portion 221, preventing dust residue on the surface of the photovoltaic laminate 100 from reducing its photoelectric conversion efficiency, or preventing water residue on the surface of the photovoltaic laminate 100 from causing corrosion and reducing its service life.

[0052] In some embodiments, the ratio between the width of the first upper clamping portion 211 and the length of the photovoltaic laminate 100 in the first direction X is 0.05 to 0.15. Optionally, the ratio between the width of the first upper clamping portion 211 and the length of the photovoltaic laminate 100 in the first direction X is 0.06 to 0.14, and the ratio between the width of the first upper clamping portion 211 and the length of the photovoltaic laminate 100 in the first direction X can be 0.07, 0.08, 0.09, 0.1, 0.11, 0.12, or 0.13.

[0053] In some embodiments, the ratio between the width of the second upper clamping portion 221 and the length of the photovoltaic laminate 100 in the second direction Y is 0.03 to 0.1. The ratio between the width of the second upper clamping portion 221 and the length of the photovoltaic laminate 100 in the second direction Y is 0.04 to 0.09, and the ratio between the width of the second upper clamping portion 221 and the length of the photovoltaic laminate 100 in the second direction Y can be 0.05, 0.06, 0.07, or 0.08.

[0054] like Figure 1As shown, a first overflow groove 2111 is provided on the side of the first upper clamping part 211 facing the photovoltaic laminate 100. The first overflow groove 2111 can collect the glue that overflows during the installation process, preventing the glue from contaminating the surface of the photovoltaic laminate 100 and affecting the aesthetics and performance of the photovoltaic module.

[0055] like Figure 2 As shown, a second overflow groove 2231 extending along the second direction Y is provided on the side surface of the second connection portion 223 facing the photovoltaic laminate 100. The second overflow groove 2231 can collect the glue overflowing during installation, preventing glue from contaminating the surface of the photovoltaic laminate 100 and affecting the aesthetics and performance of the photovoltaic module. In some embodiments, a plurality of second overflow grooves 2231 extending along the second direction Y are provided on the side surface of the second connection portion 223 facing the photovoltaic laminate 100, and the plurality of overflow grooves are arranged sequentially at intervals along the third direction Z. The arrangement of multiple overflow grooves can increase the glue collection capacity, which is suitable for occasions with a large amount of glue used.

[0056] The second overflow groove 2231 provided in the second connecting portion 223 of the second frame 220, compared with the design of the first overflow groove 2111 provided in the first upper clamping portion 211 of the first frame 210, avoids the overflow groove being provided on the second upper clamping portion 221, which would cause the thickness of the second upper clamping portion 221 to increase. This ensures that the thickness of the second upper clamping portion 221 of the second frame 220 is relatively thin, which facilitates the drainage of water and dust from the second frame 220 side of the photovoltaic module, avoids the problem of dust and water accumulation on the surface of the photovoltaic module, and avoids the situation where the photoelectric conversion efficiency of the photovoltaic module is reduced due to dust and water accumulation.

[0057] Furthermore, the first mounting base 212 of the first frame 210 is a hollow square profile structure. The side of the first mounting base 212 facing the photovoltaic laminate 100 abuts against the photovoltaic laminate 100, and the side of the first mounting base 212 away from the photovoltaic laminate 100 abuts against the ground or mounting base surface, for fixing the first frame 210. A first fixing plate 2121 extends along the first direction X from the side of the first mounting base 212 away from the photovoltaic laminate 100. Bolts pass through the first fixing plate 2121 to fix the first frame 210 to the ground or mounting base surface.

[0058] Furthermore, the second mounting base 222 of the second frame 220 is a hollow square profile structure. The side of the second mounting base 222 facing the photovoltaic laminate 100 abuts against the photovoltaic laminate 100, and the side of the second mounting base 222 away from the photovoltaic laminate 100 abuts against the ground or mounting base surface, for fixing the second frame 220. A second fixing plate 2221 extends along the second direction Y from the side of the second mounting base 222 away from the photovoltaic laminate 100. Bolts pass through the second fixing plate 2221 to fix the second frame 220 to the ground or mounting base surface.

[0059] Furthermore, the photovoltaic frame 200 is made of at least one of aluminum alloy, stainless steel, glass, or polymer materials. Aluminum alloy has advantages such as light weight, high strength, and corrosion resistance, and is a commonly used material for photovoltaic frames 200; stainless steel has advantages such as high strength and corrosion resistance, and is suitable for applications with high strength requirements; glass has advantages such as transparency and aesthetics, and is suitable for applications with high aesthetic requirements; polymer materials have advantages such as light weight and low cost, and are suitable for applications with high cost requirements.

[0060] Those skilled in the art will understand that the above embodiments are specific examples of implementing this application, and in practical applications, various changes in form and detail can be made without departing from the spirit and scope of this application. Any person skilled in the art can make various alterations and modifications without departing from the spirit and scope of this application; therefore, the scope of protection of this application should be determined by the scope defined in the claims.

Claims

1. A photovoltaic module, characterized in that, include: A photovoltaic laminate (100) has intersecting first direction (X), second direction (Y) and third direction (Z), wherein the third direction (Z) is the thickness direction of the photovoltaic laminate (100); the photovoltaic laminate (100) has a first edge (101) disposed opposite to each other in the first direction (X), and the photovoltaic laminate (100) has a second edge (102) disposed opposite to each other in the second direction (Y); the length of the first edge (101) is greater than the length of the second edge (102); A photovoltaic frame (200), the photovoltaic frame (200) comprising: The first frame (210) is disposed on the first edge (101). The first frame (210) includes a first upper clamping part (211) and a first mounting base (212) that are disposed opposite to and clamp the upper and lower surfaces of the photovoltaic laminate (100) in the third direction (Z). The second frame (220) is disposed on the second edge (102). The second frame (220) includes a second upper clamping part (221) and a second mounting base (222) that are disposed opposite to each other on the third direction (Z) and clamp the upper and lower surfaces of the photovoltaic laminate (100). A second connecting part (223) is provided on the side surface of the second connecting part (223) facing the photovoltaic laminate (100) along the second direction (Y). Wherein, the length of the first frame (210) in the second direction (Y) is greater than the length of the second frame (220) in the first direction (X), the width of the first upper clamping part (211) in the first direction (X) is greater than the width of the second upper clamping part (221) in the second direction, and the thickness of the second upper clamping part (221) is 1mm~2mm.

2. The photovoltaic module according to claim 1, characterized in that, The ratio between the width of the first upper clamping part (211) and the width of the second upper clamping part (221) is 1.2 to 2.

5.

3. The photovoltaic module according to claim 2, characterized in that, The width of the first upper clamping part (211) is 10mm~20mm, and the width of the second upper clamping part (221) is 5mm~10mm.

4. The photovoltaic module according to claim 1, characterized in that, The ratio between the width of the first upper clamping part (211) and the length of the photovoltaic laminate (100) in the first direction (X) is 0.05 to 0.

15.

5. The photovoltaic module according to claim 1, characterized in that, The ratio between the width of the second upper clamping portion (221) and the length of the photovoltaic laminate (100) in the second direction (Y) is 0.03 to 0.

1.

6. The photovoltaic module according to claim 1, characterized in that, The first frame (210) also includes a first connecting portion (213) that connects the first upper clamping portion (211) and the first mounting base (212).

7. The photovoltaic module according to claim 6, characterized in that, On the side surface of the second connection portion (223) facing the photovoltaic laminate (100), there are a plurality of second overflow grooves (2231) extending along the second direction (Y), and the plurality of second overflow grooves (2231) are arranged at intervals along the third direction (Z).

8. The photovoltaic module according to claim 1, characterized in that, The photovoltaic frame (200) is made of at least one of aluminum alloy, stainless steel, glass or polymer materials.

9. The photovoltaic module according to claim 1, characterized in that, A first overflow groove (2111) is provided on the side of the first upper clamping part (211) facing the photovoltaic laminate (100).

10. The photovoltaic module according to claim 1, characterized in that, The photovoltaic laminate (100) includes: Photovoltaic cells; An encapsulating film that covers the surface of the photovoltaic cell; A cover plate, the cover plate being located on the surface of the encapsulating film away from the photovoltaic cell.

Images