Photovoltaic module and photovoltaic system

Abstract

The utility model discloses a photovoltaic module and a photovoltaic system. The photovoltaic module comprises a photovoltaic piece and a waterproof piece. The photovoltaic piece comprises a light receiving face and a backlight face which are opposite, and the light receiving face is a curved face. The waterproof piece is arranged on the light receiving face and comprises a body part and a supporting part. A containing cavity is formed in the body part, reinforcing ribs are arranged in the containing cavity, and the supporting part is connected with the body part and located outside the containing cavity. The reinforcing ribs are arranged in the accommodating cavity, so that the mechanical strength of the waterproof piece can be enhanced without thickening, and when the waterproof piece is mounted on the photovoltaic piece and is bent along with the bending radian of the photovoltaic piece, the waterproof piece with higher mechanical strength cannot swing and deform towards two sides by taking the length direction of the waterproof piece as a reference, so that the waterproof piece can be conveniently assembled and disassembled without increasing the cost. And the installation efficiency and the installation effect (close fitting with a waterproof piece) are ensured, and the waterproof effect is further ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic technology, and more particularly, to a photovoltaic assembly and a photovoltaic system. BACKGROUND

[0002] With the increasing popularity of building photovoltaic integration, in order to better combine with the building surface, the curved photovoltaic piece which can replace the traditional tile has emerged as the times require. The curved photovoltaic piece has both aesthetic and power generation functions due to its unique shape. At present, the curved photovoltaic piece usually sets a waterproof strip to realize waterproofing. The waterproof strip needs to be bent along the bending radius of the curved photovoltaic piece. During the installation of the waterproof strip to the photovoltaic piece, the waterproof strip will usually swing to both sides as a reference to the length direction due to the need to follow the bending radius of the photovoltaic piece. The swing leads to deformation and instability. Therefore, the thickness of the cross section of the waterproof strip in the vertical length direction needs to be increased to ensure that it will not swing and deform when following the bending of the photovoltaic piece, which will lead to a higher cost of the waterproof strip. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a photovoltaic assembly and a photovoltaic system.

[0004] The photovoltaic assembly of the present application comprises a photovoltaic piece and a waterproof piece. The photovoltaic piece comprises opposite light-receiving surfaces and back surfaces, and the light-receiving surface is a curved surface. The waterproof piece is arranged on the light-receiving surface, and the waterproof piece comprises a body part and a support part. The body part is internally provided with a receiving cavity, and the receiving cavity is provided with a reinforcing rib. The support part is connected with the body part and located outside the receiving cavity.

[0005] In some embodiments, the waterproof piece is a strip, the waterproof piece spans opposite sides of the photovoltaic piece in a first direction, the body part comprises first and second opposite side walls spaced apart in a second direction, and third and fourth opposite side walls spaced apart in a third direction, the first, third, second and fourth side walls are connected end to end, the first, second and third directions are perpendicular to each other, the third side wall is in contact with the light-receiving surface, and the reinforcing rib is connected with the first and second side walls at opposite ends in the second direction.

[0006] In some embodiments, in the cross section passing through the second and third directions, the reinforcing rib is one, the connection of the reinforcing rib with the first side wall is located at the midpoint of the first side wall in the third direction, and the connection of the reinforcing rib with the second side wall is located at the midpoint of the second side wall in the third direction.

[0007] In some embodiments, within a cross section passing through the second direction and the third direction, there are multiple reinforcing ribs, which divide the accommodating cavity into multiple sub-cavities. In the third direction, the multiple reinforcing ribs are distributed at equal intervals.

[0008] In some embodiments, within a cross section passing through the second direction and the third direction, there are multiple reinforcing ribs, which divide the accommodating cavity into multiple sub-cavities. In the third direction, the volume of the sub-cavities further away from the photovoltaic element is smaller.

[0009] In some embodiments, the reinforcing rib is a single rib within a cross-section passing through the first direction and the second direction.

[0010] In some embodiments, within a cross-section passing through the first direction and the second direction, there are multiple reinforcing ribs, and the multiple reinforcing ribs are distributed at equal intervals in the first direction.

[0011] In some embodiments, the third sidewall is fixedly connected to the light-receiving surface by structural adhesive.

[0012] In some embodiments, the third sidewall has a groove on the side facing the light-receiving surface, the groove being configured to accommodate the structural adhesive.

[0013] In some embodiments, the reinforcing rib is made of the same material as the body portion.

[0014] In some embodiments, the material of the reinforcing rib is different from the material of the body portion.

[0015] In some embodiments, the hardness of the reinforcing rib is greater than the hardness of the body portion.

[0016] In some embodiments, the support is located at the junction of the first sidewall and the fourth sidewall. The first sidewall has a through hole configured to communicate with the accommodating cavity to allow fluid to enter. The two ends of the accommodating cavity are open to allow the entering fluid to flow to opposite sides of the photovoltaic element in the first direction.

[0017] This application also provides a photovoltaic system. The photovoltaic system includes a support component and a photovoltaic module as described in any of the above embodiments. The photovoltaic module is disposed on the support component.

[0018] In the photovoltaic module and photovoltaic system of this application, the waterproof component has an internal cavity within its body, and reinforcing ribs are installed within the cavity. This allows the waterproof component to have enhanced mechanical strength without the need for thickening. When the waterproof component is installed onto the photovoltaic module and bends along the curvature of the photovoltaic module, the high mechanical strength of the waterproof component will not cause it to swing or deform to either side based on its own length direction. This ensures installation efficiency and effectiveness (tight fit with the waterproof component) without increasing costs, thereby guaranteeing the waterproof effect. Simultaneously, the high mechanical strength of the waterproof component can better withstand external pressure or impact, ensuring superior waterproof performance of the photovoltaic module and photovoltaic system under different scenarios or usage conditions.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0021] Figure 1 This is a three-dimensional assembly diagram of multiple photovoltaic modules overlapping each other along a second direction according to some embodiments of this application;

[0022] Figure 2 This is a three-dimensional assembly diagram of multiple photovoltaic modules overlapping each other along a second direction according to some other embodiments of this application;

[0023] Figure 3 yes Figure 2 A side view showing multiple photovoltaic modules overlapping along the second direction;

[0024] Figure 4 yes Figure 1 or Figure 2 The diagram shows the stacked structure of photovoltaic components in a photovoltaic module.

[0025] Figure 5 yes Figure 3 A schematic diagram of the structure where multiple photovoltaic modules overlap along the second direction;

[0026] Figure 6 yes Figure 2 A cross-sectional schematic diagram of a portion of the structure of one of the photovoltaic modules shown;

[0027] Figure 7 This is a schematic diagram showing the swinging of the waterproof components of a photovoltaic module in some implementation methods;

[0028] Figure 8 This is a cross-sectional schematic diagram of a portion of the structure of a photovoltaic module according to some embodiments of this application;

[0029] Figure 9 This is a cross-sectional schematic diagram of a portion of the structure of a photovoltaic module according to other embodiments of this application;

[0030] Figure 10 This is a cross-sectional schematic diagram of a portion of the structure of a photovoltaic module according to some embodiments of this application;

[0031] Figure 11 This is a cross-sectional schematic diagram of a portion of the structure of a photovoltaic module according to some embodiments of this application;

[0032] Figure 12 This is a three-dimensional assembly schematic diagram of a photovoltaic system according to certain embodiments of this application.

[0033] Explanation of key component symbols:

[0034] 1000 photovoltaic systems, 100 photovoltaic modules, and 300 supporting components;

[0035] Photovoltaic component 10, light-receiving surface 101, backlight surface 103, front panel 11, first adhesive film layer 12, battery layer 13, first side of battery layer 131, first side of battery layer 133, second adhesive film layer 14, back panel 15;

[0036] Waterproof component 30, main body 31, accommodating cavity 310, sub-cavity 3101, reinforcing rib 311, first side wall 313, through hole 3130, second side wall 315, third side wall 317, groove 3170, fourth side wall 319, support part 33;

[0037] Structural adhesive 50, first direction X, second direction Y, third direction Z. Detailed Implementation

[0038] 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.

[0039] In the description of this application, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "side", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] 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.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "loading," 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.

[0042] 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.

[0043] With the increasing popularity of building-integrated photovoltaics (BIPV), curved photovoltaic modules, which can replace traditional roof tiles, have emerged to better integrate with building surfaces. Curved photovoltaic modules, due to their unique shape, combine aesthetics and power generation. Currently, curved photovoltaic modules typically use waterproof strips for waterproofing. These strips need to bend to follow the curvature of the photovoltaic module. During installation, the strips often sway to both sides along their length, causing deformation and instability. Therefore, the thickness of the waterproof strip's cross-section in the vertical direction needs to be increased to prevent deformation when bending with the photovoltaic module, resulting in higher costs. To address this issue, this application provides a photovoltaic module 100 (… Figures 1 to 3 (as shown) and a photovoltaic system 1000 having the photovoltaic module 100. Figure 12 (As shown).

[0044] Please see Figure 1 and Figure 2The photovoltaic module 100 of this application includes a photovoltaic element 10 and a waterproof element 30. The photovoltaic element 10 includes a light-receiving surface 101 and a backlighting surface 103 facing away from each other, and the light-receiving surface 101 is curved. The waterproof element 30 is disposed on the light-receiving surface 101. Please refer to... Figure 5 and Figure 6 The waterproof component 30 includes a body part 31 and a support part 33. The body part 31 has a receiving cavity 310 inside, and a reinforcing rib 311 is provided inside the receiving cavity 310. The support part 33 is connected to the body part 31 and is located outside the receiving cavity 310.

[0045] For ease of explanation, a three-dimensional coordinate system is established with the center of the photovoltaic module 100 as the origin. The X-axis corresponds to the length direction of the photovoltaic module 100 and is defined as the first direction; the Y-axis corresponds to the width direction of the photovoltaic module 100 and is defined as the second direction; and the Z-axis corresponds to the thickness direction of the photovoltaic module 100 and is defined as the third direction.

[0046] A photovoltaic module 100 (commonly referred to as a solar panel) is a device that directly converts solar energy into electrical energy and is the core component of a photovoltaic (power generation) system. The photovoltaic module 100 can be installed on the top or side of a building. The photovoltaic module 100 includes photovoltaic elements 10, waterproof components 30, and junction boxes (not shown). Among these, the photovoltaic elements 10 are the core component of the photovoltaic module 100 used to convert solar energy into electrical energy. In some embodiments, the photovoltaic elements 10 have a flat plate structure; in this case, the photovoltaic module 100 can be installed on the side of the building. In the embodiments of this application, the photovoltaic elements 10 have a curved structure; in this case, the photovoltaic module 100 can be installed on the top of the building, similar to a curved tile, improving the building's aesthetics.

[0047] Please see Figures 1 to 3 The photovoltaic element 10 has a light-receiving surface 101 and a back-lighting surface 103, which are two opposing surfaces of the photovoltaic element 10 in the third direction Z. Specifically, the light-receiving surface 101 of the photovoltaic element 10 faces the sun and is used to receive sunlight. The back-lighting surface 103 of the photovoltaic element 10 is the surface facing away from the sun and is opposite to the light-receiving surface 101. Please refer to... Figure 4 On the third direction Z, the photovoltaic element 10 sequentially includes a front panel 11, a cell layer 13, and a back panel 15. The cell layer 13 is a structure for receiving light energy and converting it into electrical energy. The cell layer 13 can transmit the generated electrical energy to other circuits so that the curved photovoltaic element 10 can charge other components.

[0048] The battery layer 13 includes a first side 131 and a second side 133. The first side 131 is the side closer to the light-receiving surface 101, and the second side 133 is the side closer to the backlight surface 103. In one embodiment, the positive and negative electrodes of the battery layer 13 are respectively disposed on the first side 131 and the second side 133. In this case, the battery layer 13 can be a passivated emitter and rear cell (PERC) or a tunnel oxide passivating contact (TOPCON) battery, etc. In another embodiment, both the positive and negative electrodes of the battery layer 13 are disposed on the second side 133. In this case, the battery layer 13 can be an interdigitated back contact (IBC), an all back contact (ABC), a hybrid passivated back contact (HPBC), or a metallization wrap-through (MWT) battery, etc.

[0049] The front panel 11 is a structure used to protect the first side 131 of the battery layer. The front panel 11 resists external impacts and abrasions and has a waterproof function, thereby protecting the battery layer 13 from damage. In this application, the front panel 11 has a curved structure, allowing the battery layer 13 and the back panel 15 to bend and conform to the shape of the front panel 11 when they are in contact with it, thus forming a curved photovoltaic element 10. The front panel 11 is a light-transmitting rigid front panel, and the material of the front panel 11 can be, but is not limited to, ultra-clear tempered glass or tempered glass. When the front panel 11 is tempered glass, its light transmittance is greater than 80%. For example, the light transmittance of the front panel 11 is 81.2%, 83.4%, 84.7%, 86.7%, 88.4%, 89.1%, 90.4%, 92.7%, 93.7%, or 95.1%. In this case, the amount of light loss when passing through the front panel 11 is small, and the battery layer 13 has a high light utilization rate. When the front panel 11 is made of ultra-clear tempered glass, its light transmittance is greater than 90%. For example, the light transmittance of the front panel 11 is 91%, 92.3%, 93.2%, 94.5%, 95.6%, 96.8%, 97.1%, 98.6%, 99.2%, or 100%. In this case, less light is lost when passing through the front panel 11, and the battery layer 13 has a higher utilization rate of light.

[0050] The backsheet 15 is a structure used to protect the second side 133 of the battery layer. The backsheet 15 has certain waterproof and insulating properties. In some embodiments, the backsheet 15 is a flexible backsheet, and the material of the backsheet 15 can be, but is not limited to, polyethylene terephthalate (PET) or PET composite materials. When the backsheet 15 is a flexible backsheet, it can be bent to conform to the shape of the front panel 11 when it needs to be bonded to the battery layer 13 and the front panel 11. When the backsheet 15 is made of PET or a PET composite material, the backsheet 15 is lighter, resulting in a lighter overall weight of the curved photovoltaic element 10, making transportation and handling of the curved photovoltaic element 10 more convenient.

[0051] It should be noted that the front panel 11 and the battery layer 13 can be bonded together by the first adhesive layer 12, and the back panel 15 and the battery layer 13 can be bonded together by the second adhesive layer 14. That is, in the third direction Z, the front panel 11, the first adhesive layer 12, the battery layer 13, the second adhesive layer 14 and the back panel 15 are stacked in sequence.

[0052] The first adhesive layer 12 is a high-cutoff adhesive layer, which, while allowing light to pass through, blocks ultraviolet light from entering the battery layer 13 and the backsheet 15. Ultraviolet light entering the battery layer 13 and backsheet 15 accelerates the aging of the battery cells and backsheet 15, shortening their lifespan. The first adhesive layer 12 of this application blocks ultraviolet light, thus providing better protection for the battery layer 13 and the backsheet 15. Preferably, the light transmittance (transmittance to visible light) of the first adhesive layer 12 is greater than or equal to 70%. During the process of light passing through the first adhesive layer 12 to reach the battery layer 13, the amount of light loss is minimal, resulting in higher light utilization efficiency in the battery layer 13. The material of the first adhesive layer 12 can be, but is not limited to, ethylene-vinyl acetate copolymer, polyolefin elastomer, polyvinyl butyral, or thermoplastic elastomer.

[0053] The second adhesive layer 14 is a high-transmittance adhesive film; for example, the transmittance of the second adhesive layer 14 can be greater than or equal to 70%. When the second adhesive layer 14 is a transparent adhesive film, the solar cells in the solar cell layer 13 can be bifacial solar cells. In this case, both opposite sides of the solar cell layer 13 can absorb light and convert light energy into electrical energy. Light reflected by the back plate 15 can also be received by the second side 133 of the solar cell layer 13 and used to generate electrical energy. The material of the second adhesive layer 14 can be, but is not limited to, ethylene-vinyl acetate copolymer, polyolefin elastomer, or polyvinyl butyral.

[0054] Waterproof component 30 is provided on photovoltaic component 10 to prevent moisture from entering the photovoltaic component 10 and / or from the photovoltaic component 10 and the support assembly 300.Figure 12 The component that enters the building interior between the photovoltaic element 101 and the photovoltaic element 101 is shown. A waterproof component 30 is disposed on the light-receiving surface 101. Since the photovoltaic element 10 in this embodiment has a curved structure, the waterproof component 30 can bend and deform along with the bending deformation of the photovoltaic element 10. The length direction of the waterproof component 30 is consistent with the length direction of the photovoltaic element 10, which is the first direction X.

[0055] Specifically, please refer to Figure 3 , Figure 5 and Figure 6 The waterproof component 30 includes a body portion 31 and a support portion 33. The body portion 31 is the main structure of the waterproof component 30 and has an internal accommodating cavity 310. The support portion 33 is disposed outside the accommodating cavity 310 and connected to the body portion 31. In this embodiment, the support portion 33 is inclined Z relative to a third party. When multiple photovoltaic modules 100 are overlapped, in two adjacent photovoltaic modules 100, the backlight surface 103 of one photovoltaic module 100 (hereinafter referred to as: the first photovoltaic module) rests on the support portion 33 of the waterproof component 30 of the other photovoltaic module 100 (hereinafter referred to as: the second photovoltaic module), such as... Figure 5 As shown, the support portion 33 supports the first photovoltaic module that is attached to it. Compared to the third party, the support portion 33, which is tilted Z, can deform when the first photovoltaic module is attached to it, so as to provide a certain buffer and prevent the first photovoltaic module from directly impacting the body portion 31 on the second photovoltaic module, thereby preventing the waterproof component 30 on the second photovoltaic module from loosening and ensuring that the waterproof performance of the waterproof component 30 is not reduced.

[0056] The material of the body part 31 needs to possess certain mechanical strength, weather resistance, and sealing performance. Commonly used materials include plastics, metals, and composite materials. Plastics include polycarbonate (PC), polyamide (PA), and polypropylene (PP), etc. Body parts 31 made of plastics are characterized by high strength, impact resistance, and chemical corrosion resistance. Metals include aluminum alloys and stainless steel, etc. Body parts 31 made of metals have extremely high strength. Composite materials include glass fiber reinforced plastic (GFRP) and carbon fiber reinforced plastic (CFRP), etc. Body parts 31 made of composite materials are characterized by high strength and lightweight. The design of the body part 31 enables the waterproof component 30 to adapt to complex installation environments, enhances the mechanical strength of the waterproof component 30, and better withstands external pressure or impact, while ensuring waterproof performance.

[0057] The accommodating cavity 310 is a spatial structure formed within the main body 31. Compared to waterproof components without an accommodating cavity, the waterproof component 30 with an accommodating cavity 310 requires less material and has a lower cost. The reinforcing ribs 311 of this application are disposed within the accommodating cavity 310. The reinforcing ribs 311 are support structures used to enhance structural strength and stability, typically protruding or rib-like structures, distributed along the inner wall or bottom of the accommodating cavity 310 in a specific geometric shape. The reinforcing ribs 311 are usually made of high-strength, low-density materials, such as glass fiber reinforced plastic (GFRP) or carbon fiber reinforced plastic (CFRP), and are distributed within the accommodating cavity 310 in a linear, curved, grid-like, or radial pattern. While improving structural strength, they do not significantly increase the weight of the waterproof component 30, thereby reducing the overall weight of the photovoltaic module 100 and facilitating installation and maintenance.

[0058] If no reinforcing ribs are provided in the receiving cavity, such as Figure 7 As shown in Figure (b), during the installation of the waterproof component onto the photovoltaic module, the waterproof component must bend to follow the curvature of the photovoltaic module, such as... Figure 7 As shown in Figure (a), waterproof components typically swing to both sides with the length direction X as the reference. This swinging causes deformation and instability, such as... Figure 7 The forward collapse shown in Figure (c), or, as in Figure 7 The backward collapse is shown in Figure (c). Please refer to [the original text]. Figure 3 and Figure 6 In the photovoltaic module 100 of this application, the waterproof component 30 has a receiving cavity 310 inside its body 31, and a reinforcing rib 311 is provided inside the receiving cavity 310. The reinforcing rib 311 enhances the mechanical strength of the waterproof component 30 without thickening it. When the waterproof component 30 is installed to the photovoltaic module 10 and bends along the curvature of the photovoltaic module 10, the high mechanical strength of the waterproof component 30 will not swing or deform to both sides based on its own length direction X. This ensures installation efficiency and installation effect (tight fit with the waterproof component 30) without increasing costs, thereby guaranteeing the waterproof effect. At the same time, the high mechanical strength of the waterproof component 30 can better withstand external pressure or impact, ensuring the waterproof effect of the photovoltaic module 100 and photovoltaic system 1000 under different scenarios or usage conditions. Figure 12 The waterproof performance of all of them (as shown) is good.

[0059] Please see Figure 2 , Figure 3 and Figure 6In this embodiment, the waterproof component 30 is an adhesive strip, which spans the photovoltaic component 10 across its opposite sides in the first direction X. The main body 31 includes a first sidewall 313 and a second sidewall 315 spaced apart in the second direction Y, and a third sidewall 317 and a fourth sidewall 319 spaced apart in the third direction Z. The first sidewall 313, the third sidewall 317, the second sidewall 315, and the fourth sidewall 319 are connected end to end. The third sidewall 317 contacts the light-receiving surface 101, and the reinforcing rib 311 is connected to the first sidewall 313 and the second sidewall 315 at its opposite ends in the second direction Y.

[0060] The waterproof component 30 spans across the opposite sides of the photovoltaic module 100 in the first direction X, forming a continuous and seamless waterproof barrier. This design provides reliable waterproof protection for the entire photovoltaic module 10.

[0061] The first sidewall 313, second sidewall 315, third sidewall 317, and fourth sidewall 319 form a closed frame structure by connecting end to end. This frame structure not only enhances the overall stability of the waterproof component 30 but also significantly improves its sealing performance. Each sidewall is precisely designed and manufactured to ensure seamless connection, avoiding water leakage caused by loose joints. The closed frame structure can also effectively resist the influence of external environment, such as wind pressure, temperature changes, or mechanical vibration, preventing damage and reduction in waterproof performance. Furthermore, after being installed into the photovoltaic component 10, the waterproof component 30 with this frame structure can be tightly integrated with the photovoltaic module 100 to form an integrated photovoltaic module 100, which can improve the overall structural strength of the photovoltaic module 100 and enhance its stability in extreme external environments.

[0062] The third sidewall 317 is in direct contact with the light-receiving surface 101 of the photovoltaic element 10, ensuring a tight fit between the waterproof component 30 and the photovoltaic element 10, forming a seamless waterproof barrier. This barrier not only blocks the intrusion of external moisture but also prevents condensation from accumulating on the contact area due to temperature changes or ambient humidity, thus avoiding the risk of corrosion or short circuits to the internal circuitry of the photovoltaic element 10. Furthermore, the tight fit between the third sidewall 317 and the photovoltaic element 10 reduces mechanical stress concentration caused by poor contact. In traditional designs, if there are gaps or poor fit between the waterproof component and the photovoltaic element, external pressure or vibration may cause stress concentration in localized areas, leading to material fatigue or even damage. The tight contact design between the third sidewall 317 and the photovoltaic element 10 evenly distributes external pressure, reducing this risk and improving the overall stability and durability of the photovoltaic module 100.

[0063] Please see Figure 5 and Figure 6In this embodiment, the two ends of the reinforcing rib 311 in the second direction Y are respectively connected to the first sidewall 313 and the second sidewall 315 to form a stable support structure. This design, by firmly connecting the two ends of the reinforcing rib 311 to the first sidewall 313 and the second sidewall 315, significantly strengthens the internal structure of the waterproof component 30, forming a uniformly distributed mechanical network. This network can effectively disperse external pressure and avoid stress concentration in a local area, thereby enhancing the mechanical strength of the waterproof component 30. During long-term use, the waterproof component 30 may be affected by various external factors, such as temperature changes, wind pressure, rain impact, or mechanical vibration. These factors may lead to material fatigue, deformation, or even cracking. The support structure of the reinforcing rib 311, through its high-strength connection design, can effectively resist the influence of these external forces and prevent the waterproof component 30 from deforming or being damaged.

[0064] Please see Figures 4 to 6 Furthermore, in some embodiments, within the cross section passing through the second direction Y and the third direction Z, there is one stiffener 311, the connection point of the stiffener 311 and the first sidewall 313 is located at the midpoint of the first sidewall 313 in the third direction Z, and the connection point of the stiffener 311 and the second sidewall 315 is located at the midpoint of the second sidewall 315 in the third direction Z.

[0065] The two ends of the reinforcing rib 311 are located at the midpoint of the first sidewall 313 and the second sidewall 315 in the third direction Z, which allows the reinforcing rib 311 to be evenly distributed under stress, avoiding stress concentration. Stress concentration is one of the main causes of structural component failure, especially when subjected to external pressure or impact. Stress concentration can significantly weaken the overall strength of the structure and even cause local deformation or fracture. The photovoltaic module 100 of this application sets the connection point of the reinforcing rib 311 at the midpoint of the first sidewall 313 and the second sidewall 315, so that the force on the reinforcing rib 311 can be more evenly transferred to the entire waterproof component 30, thereby effectively improving the deformation resistance and overall strength of the waterproof component 30.

[0066] Furthermore, the two ends of the reinforcing rib 311 are located at the midpoint of the first sidewall 313 and the second sidewall 315 in the third direction Z. That is, the reinforcing rib 311 divides the accommodating cavity 310 into two symmetrical sub-cavities 3101. This symmetrical design enhances the structural stability of the waterproof component 30, enabling the waterproof component 30 to withstand external pressure or impact evenly. On the other hand, this symmetrical design is beneficial to the molding and manufacturing of the waterproof component 30.

[0067] Please see Figure 8 and Figure 9In some embodiments, within a cross section passing through the second direction Y and the third direction Z, there are multiple reinforcing ribs 311, which divide the accommodating cavity 310 into multiple sub-cavities 3101.

[0068] Multiple reinforcing ribs 311 refer to the presence of two or more reinforcing ribs 311, such as 2, 3, 4, 5, 6, 7, 8, 9, 10, or more. Multiple reinforcing ribs 311 further enhance the overall rigidity and stability of the waterproof sealing strip, preventing twisting or deformation during installation or use. This design, by increasing the number of reinforcing ribs 311, allows the waterproof sealing strip to evenly distribute stress when subjected to external pressure or impact, avoiding damage caused by localized stress concentration. Simultaneously, the distribution of multiple reinforcing ribs 311 effectively improves the elastic recovery ability of the waterproof sealing strip, enabling it to quickly return to its original shape after being compressed or stretched, thus ensuring that the waterproof sealing strip maintains a good sealing effect even after long-term use.

[0069] Please see Figure 8 In some embodiments, multiple reinforcing ribs 311 are evenly spaced along the third direction Z. In one example, the multiple sub-cavities 3101 have the same volume. The evenly spaced distribution of the multiple reinforcing ribs 311 ensures uniform stress distribution on the waterproof component 30, further enhancing the reliability and durability of the waterproof component 30 structure. In addition, the evenly spaced reinforcing ribs 311 simplify the manufacturing process of the waterproof component 30 and reduce production costs.

[0070] Please see Figure 9 In some implementations, the volume of the sub-cavity 3101 that is further away from the photovoltaic element 10 is smaller in the third direction Z.

[0071] The volume of the sub-cavity 3101 exhibits a gradient change in the third direction Z, meaning that the volume of the sub-cavity 3101 decreases the further away from the photovoltaic element 10. This gradient design of the sub-cavity 3101 has multiple advantages, achieving efficient material utilization and enhancing the pressure resistance and stability of the waterproof component 30. Specifically, generally speaking, the sidewall of the waterproof component 30 furthest from the photovoltaic element 10, namely the fourth sidewall 319, bears the pressure of the second photovoltaic module and is also subjected to impacts from the external environment. The sidewall of the waterproof component 30 closest to the photovoltaic element 10, namely the third sidewall 317, is directly connected to the photovoltaic element 10, making it relatively stable and robust, and its ability to withstand external pressure is stronger than that of the fourth sidewall 319. Therefore, the distribution density of the reinforcing ribs 311 gradually increases in the direction from the third sidewall 317 to the fourth sidewall 319, taking into account both the need for more support and reinforcement at the upper end and the avoidance of wasting material by distributing too many reinforcing ribs 311 at the lower end.

[0072] Please see Figure 10In some embodiments, there is one stiffener 311 in the cross section passing through the first direction X and the second direction Y.

[0073] Within the cross-sections in the first direction X and the second direction Y, the reinforcing rib 311 is designed as a single unit. This design not only simplifies the overall structure of the waterproof component 30 but also reduces production costs. The two ends of the reinforcing rib 311 (the two ends in the Y direction) are tightly connected to the first sidewall 313 and the second sidewall 315, respectively, forming a stable support frame. This single reinforcing rib 311 design allows the waterproof component 30 to maintain a lightweight design while still providing sufficient mechanical strength and stability, ensuring its effective waterproofing function under various environmental conditions.

[0074] Please see Figure 11 In some other embodiments, within the cross-section passing through the first direction X and the second direction Y, there are multiple reinforcing ribs 311, such as 2, 3, 4, 5, 6, 7, 8, 9, 10, or more. Multiple reinforcing ribs 311 can further improve the overall rigidity and stability of the waterproof strip, preventing it from twisting or deforming during installation or use. This design, by increasing the number of reinforcing ribs 311, allows the waterproof strip to evenly distribute stress when subjected to external pressure or impact, avoiding damage caused by localized stress concentration. Simultaneously, the distribution of multiple reinforcing ribs 311 can effectively enhance the elastic recovery ability of the waterproof strip, enabling it to quickly return to its original shape after being squeezed or stretched, thereby ensuring that the waterproof strip maintains a good sealing effect even after long-term use.

[0075] In some embodiments, multiple reinforcing ribs 311 are evenly distributed in the first direction X. This even distribution of the reinforcing ribs 311 in the first direction X ensures uniform stress distribution on the waterproof component 30, further enhancing the reliability and durability of the waterproof component 30 structure. Furthermore, the evenly distributed reinforcing ribs 311 simplify the manufacturing process of the waterproof component 30, reduce production costs, and facilitate installation and maintenance. Of course, in other embodiments, the multiple reinforcing ribs 311 may also be unevenly distributed in the first direction X; no limitation is made here.

[0076] Please see Figure 6 , Figure 8 or Figure 9 Furthermore, in some embodiments, the third sidewall 317 is fixedly connected to the light-receiving surface 101 by structural adhesive 50.

[0077] The third sidewall 317 is fixedly connected to the light-receiving surface 101 with structural adhesive 50, which enhances the sealing performance of the photovoltaic module 100 and prevents moisture penetration. Specifically, the photovoltaic module 100 is exposed to the outdoor environment for a long time and is easily affected by environmental factors such as rain and humidity. By fixing the waterproof strip to the light-receiving surface 101 of the photovoltaic module 10 with structural adhesive 50, moisture can be effectively prevented from penetrating into the interior of the photovoltaic module 100, avoiding the degradation of electrical performance or corrosion of internal components of the photovoltaic module 100 due to moisture, thereby improving the waterproof performance of the photovoltaic module 100 and extending its service life.

[0078] Secondly, the structural strength and stability of the photovoltaic module 100 are improved by fixing the third sidewall 317 to the light-receiving surface 101 with structural adhesive 50. The structural adhesive 50 has excellent bonding strength and durability, which can firmly fix the waterproof component to the light-receiving surface 101 of the photovoltaic module. This connection method not only enhances the overall structural strength of the photovoltaic module 100, but also effectively resists the effects of external mechanical stress, such as wind pressure, snow load or vibration, and prevents the photovoltaic module 100 from deforming or falling off in harsh environments.

[0079] Furthermore, the fixed connection between the third sidewall 317 and the light-receiving surface 101 via structural adhesive 50 improves the anti-aging performance of the photovoltaic module 100. Structural adhesive 50 typically possesses good weather resistance and UV resistance, maintaining stable physical and chemical properties during long-term outdoor use. The waterproof component 30 is fixedly connected via structural adhesive 50, and the bonding interface between the waterproof component 30 and the photovoltaic module 10 is less prone to aging or cracking, thus ensuring that the photovoltaic module 100 maintains good sealing performance and structural integrity during long-term use.

[0080] Furthermore, the third sidewall 317 is fixedly connected to the light-receiving surface 101 by structural adhesive 50. Compared with traditional mechanical fixing methods, such as screws or clips, this is more convenient, reduces installation steps and labor costs, and improves production efficiency.

[0081] Please continue reading. Figure 6 , Figure 8 or Figure 9 Specifically, in some embodiments, the third sidewall 317 is provided with a groove 3170 on the side facing the light-receiving surface 101. The groove 3170 serves as an overflow groove and is configured to accommodate structural adhesive 50.

[0082] The glue overflow tank controls glue distribution, enhances sealing performance, and improves bonding reliability. At the same time, the glue overflow tank can also reduce glue waste, enhance anti-aging performance, and adapt to environmental changes caused by thermal expansion and contraction, providing a reliable guarantee for the long-term stable operation of photovoltaic modules 100.

[0083] Specifically, the overflow groove provides a pre-defined space for the flow and storage of structural adhesive 50, controlling its amount and distribution. During bonding, excess adhesive flows into the overflow groove, preventing it from overflowing into other areas of the photovoltaic module 10, such as junction boxes, thus ensuring the neat appearance and functional integrity of the photovoltaic module 100. Secondly, the overflow groove design allows the structural adhesive 50 to be evenly distributed during bonding, filling the gap between the waterproof component 30 and the photovoltaic component 10, avoiding uneven adhesive distribution or localized missing adhesive. Simultaneously, this even adhesive distribution enhances the strength of the bonding interface, improving the connection reliability between the waterproof component 30 and the photovoltaic component 10. Furthermore, the overflow groove can accommodate excess adhesive, ensuring that the adhesive fully fills the contact surface between the waterproof component 30 and the photovoltaic component 10, forming a continuous sealing layer. This design prevents moisture, dust, and other contaminants from penetrating the joints, further improving the waterproof and dustproof performance of the photovoltaic module 100. Furthermore, the overflow groove guides the flow of structural adhesive 50, ensuring it flows along a predetermined path during bonding and preventing random diffusion. Moreover, the overflow groove ensures a uniform adhesive layer is formed at the bonding interface, preventing localized stress concentration or excessively thin adhesive layers caused by uneven adhesive distribution. This uniform adhesive layer better resists the effects of environmental factors such as ultraviolet radiation and temperature changes, slowing down adhesive aging and thus improving the long-term reliability of the photovoltaic module 100.

[0084] Please refer to [link / reference] Figure 6 , Figure 8 or Figure 9 In some embodiments, the reinforcing rib 311 is made of the same material as the body 31.

[0085] The reinforcing rib 311 and the main body 31 are made of materials including, but not limited to, rubber, plastic, or metal. Using the same material ensures compatibility and consistency between the reinforcing rib 311 and the main body 31, avoiding problems such as mismatched thermal expansion coefficients or poor interface bonding caused by material differences. This consistent design effectively improves the overall structural strength and stability of the waterproof component 30, preventing stress concentration or cracking caused by differences in material properties during long-term use. Furthermore, using the same material simplifies the production process and reduces manufacturing costs. Since the reinforcing rib 311 and the main body 31 can use the same molding process, there is no need to switch materials during production, thereby improving production efficiency and reducing costs. Functionally, the identical material of the reinforcing rib 311 and the main body 31 allows for better adaptation to the curved shape of the photovoltaic module 100, ensuring a tight fit between the waterproof component 30 and the photovoltaic component 10. This design not only enhances the mechanical strength of the waterproof component 30 but also improves its elastic recovery capability, enabling it to quickly return to its original shape after being subjected to external pressure or impact, thus maintaining a long-term sealing effect.

[0086] In other embodiments, the material of the reinforcing rib 311 is different from the material of the body 31.

[0087] The materials used for the reinforcing rib 311 and the body part 31 include, but are not limited to, rubber, plastic, or metal. The material of the reinforcing rib 311 differs from that of the body part 31, allowing for the selection of the most suitable material based on their respective functional requirements. For example, the reinforcing rib 311 can be made of high-strength, high-rigidity materials, such as metal or high-strength plastic, to provide better support and resistance to deformation; while the body part 31 of the waterproof component 30 can be made of flexible, weather-resistant materials, such as rubber or silicone, to ensure good sealing performance and elastic recovery. This optimized matching of material properties significantly improves the overall structural performance of the waterproof component 30. Furthermore, different materials may have different coefficients of thermal expansion. By selecting different materials for the reinforcing rib 311 and the body part 31 of the waterproof component 30, the distribution of thermal stress can be improved. During temperature changes, the different materials used for the reinforcing rib 311 and the body part 31 of the waterproof component 30 can absorb some of the thermal stress, thereby reducing the risk of material fatigue or cracking caused by thermal expansion and contraction.

[0088] In some other embodiments, the hardness of the reinforcing rib 311 is greater than the hardness of the body portion 31.

[0089] The materials used for the reinforcing ribs 311 and the main body 31 include, but are not limited to, rubber, plastic, or metal. The hardness of the reinforcing ribs 311 is greater than that of the main body 31, which ensures the overall mechanical strength and rigidity of the waterproof component 30. This design allows the waterproof component 30 to better withstand external pressure, impact, or vibration, preventing deformation or damage caused by excessive force. It is particularly suitable for the use of photovoltaic modules 100 in outdoor environments where they are exposed to complex conditions such as wind pressure and snow load for extended periods. In addition, the high-hardness material of the reinforcing ribs 311 provides better resistance to deformation. For example, metal reinforcing ribs 311 have a high elastic modulus, which can maintain shape stability under stress and prevent the main body 31 from twisting or deforming due to external stress. This is suitable for applications that require long-term shape stability. Furthermore, choosing high-hardness materials for the reinforcing ribs 311 can reduce the size or number of reinforcing ribs 311 while ensuring structural strength, thereby reducing overall weight and material costs.

[0090] Please see Figure 1 , Figure 3 , Figure 6 and Figure 11 The support part 33 is located at the connection between the first side wall 313 and the fourth side wall 319. The first side wall 313 is provided with a through hole 3130, which is configured to communicate with the accommodating cavity 310 to allow fluid to enter. The two ends of the accommodating cavity 310 are open so that the fluid entering can flow to the opposite sides of the photovoltaic element 10 in the first direction X.

[0091] The design of the support portion 33 at the connection between the first sidewall 313 and the fourth sidewall 319 effectively prevents external contaminants from directly entering the critical parts of the photovoltaic module 100, while providing a structural basis for fluid guidance. The first sidewall 313 has a through hole 3130 that communicates with the receiving cavity 310. This design allows external fluids, such as rainwater or cleaning water, to enter the receiving cavity 310 through the through hole 3130. The two ends of the receiving cavity 310 are open, allowing the incoming fluid to flow along the first direction X to the opposite sides of the photovoltaic module 10, thereby achieving effective fluid discharge. The cooperation between the through hole 3130 and the receiving cavity 310 guides the orderly flow of fluid, preventing fluid accumulation on the surface of the photovoltaic module 10 and reducing corrosion or performance degradation caused by water accumulation.

[0092] Please see Figure 12 This application also provides a photovoltaic system 1000. The photovoltaic system 1000 includes a photovoltaic module 100 and a support component 300 according to any of the above embodiments. The photovoltaic module 100 is disposed on the support component 300.

[0093] Please combine Figure 3 and Figure 6In the photovoltaic system 1000 of this application, the waterproof component 30 has a receiving cavity 310 inside its body 31, and a reinforcing rib 311 is provided inside the receiving cavity 310. The reinforcing rib 311 enhances the mechanical strength of the waterproof component 30 without thickening it. When the waterproof component 30 is installed to the photovoltaic component 10 and bends along the curvature of the photovoltaic component 10, the waterproof component 30 with higher mechanical strength will not swing or deform to both sides based on its own length direction X. This ensures installation efficiency and installation effect (tight fit with the waterproof component 30) without increasing costs, thereby guaranteeing the waterproof effect. At the same time, the waterproof component 30 with higher mechanical strength can better withstand external pressure or impact, ensuring better waterproof performance of the photovoltaic module 100 and the photovoltaic system 1000 under different scenarios or usage conditions.

[0094] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. At the same time, other implementation methods can be derived from the above embodiments, so that structural and logical substitutions and changes can be made without departing from the scope of this disclosure.

[0095] The above embodiments merely illustrate 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. 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, characterized in that, include: A photovoltaic device includes a light-receiving surface and a backlighting surface facing away from each other, wherein the light-receiving surface is curved; and A waterproof component, disposed on the light-receiving surface, includes a body and a support. The body has an internal cavity with reinforcing ribs. The support is connected to the body and located outside the cavity.

2. The photovoltaic module according to claim 1, characterized in that, The waterproof component is an adhesive strip that spans the photovoltaic component on opposite sides in a first direction. The main body includes a first sidewall and a second sidewall spaced apart in a second direction, and a third sidewall and a fourth sidewall spaced apart in a third direction. The first sidewall, the third sidewall, the second sidewall, and the fourth sidewall are connected end to end. The first direction, the second direction, and the third direction are perpendicular to each other. The third sidewall is in contact with the light-receiving surface. The reinforcing ribs are connected to the first sidewall and the second sidewall at opposite ends in the second direction, respectively.

3. The photovoltaic module according to claim 2, characterized in that, Within the cross section passing through the second direction and the third direction, there is one reinforcing rib. The connection point of the reinforcing rib to the first sidewall is located at the midpoint of the first sidewall in the third direction, and the connection point of the reinforcing rib to the second sidewall is located at the midpoint of the second sidewall in the third direction.

4. The photovoltaic module according to claim 2, characterized in that, Within the cross-section passing through the second direction and the third direction, there are multiple reinforcing ribs, which divide the accommodating cavity into multiple sub-cavities. In the third direction, the plurality of reinforcing ribs are distributed at equal intervals; or, In the third direction, the volume of the sub-cavity decreases the further away from the photovoltaic element.

5. The photovoltaic module according to claim 2, characterized in that, Within a cross-section passing through the first direction and the second direction, there is one reinforcing rib; or, there are multiple reinforcing ribs, with the multiple reinforcing ribs distributed at equal intervals in the first direction.

6. The photovoltaic module according to claim 2, characterized in that, The third sidewall is fixedly connected to the light-receiving surface by structural adhesive.

7. The photovoltaic module according to claim 6, characterized in that, The third sidewall has a groove on the side facing the light-receiving surface, and the groove is configured to accommodate the structural adhesive.

8. The photovoltaic module according to claim 2, characterized in that, The support portion is located at the connection between the first sidewall and the fourth sidewall. The first sidewall is provided with a through hole, which is configured to communicate with the accommodating cavity to allow fluid to enter. The two ends of the accommodating cavity are open so that the entering fluid flows to the opposite sides of the photovoltaic device in the first direction.

9. The photovoltaic module according to claim 1, characterized in that, The reinforcing rib is made of the same material as the main body; or, the reinforcing rib is made of a different material than the main body; and / or... The hardness of the reinforcing rib is greater than the hardness of the body.

10. A photovoltaic system, characterized in that, include: Support components; and The photovoltaic module according to any one of claims 1-9, wherein the photovoltaic module is disposed on the support component.

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