Frame structure and photovoltaic system

Abstract

The application relates to a frame structure and a photovoltaic system. The frame structure comprises a first frame and a second frame. The first frame comprises a first main body and a first flange located on one side of the first main body away from a first open slot. The second frame comprises a second main body and a second flange located on one side of the second main body away from a second open slot. By opening a first arc-shaped slot and a second arc-shaped slot on the first flange away from the first open slot and the second flange away from the second open slot respectively, and connecting a grounding piece at the first arc-shaped slot and the second arc-shaped slot, the grounding connection between the photovoltaic modules is realized. The first flange and the second flange can be left-right matched or up-down matched to form a grounding hole, or separately formed with a grounding hole. In this way, without piercing the frame profile connected with the photovoltaic module, the waterproof performance of the photovoltaic module can be ensured, and the possibility of frame hidden cracks generated in the piercing and drilling process can be reduced. The grounding can play an aesthetic role.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic, in particular to a frame structure and a photovoltaic system. BACKGROUND

[0002] Photovoltaic power generation is a power generation method that directly converts solar energy into electrical energy. Since it uses renewable solar energy and does not cause environmental pollution during power generation, it is a green and environmentally friendly energy production method. At present, photovoltaic power generation has been widely concerned by countries around the world and has developed into a new industry.

[0003] A photovoltaic module is a basic device for realizing stable output of electrical energy by photovoltaic power generation. The photovoltaic module is formed by covering an aluminum alloy frame around the periphery of a laminated part. The frame structure is an important component of the photovoltaic module, which is used to protect and support the photovoltaic laminated part, and connect each component and the system support. In order to improve the safety of the photovoltaic power generation system, the photovoltaic module is usually grounded to reduce the static effect and leakage phenomenon of the module frame, avoid damage to the module caused by lightning and static electricity, and ensure the safety of the system in which the module operates and the operation safety of the maintenance personnel.

[0004] In the related art, the grounding design of the photovoltaic module needs to pierce the frame profile around the periphery of the photovoltaic module. After piercing the frame profile, the waterproof performance of the photovoltaic module is easily affected. SUMMARY

[0005] Therefore, it is necessary to provide a frame structure to solve the problem that the existing grounding design of the frame of the photovoltaic module affects the waterproof performance.

[0006] A frame structure for fixing a photovoltaic module, the frame structure comprising:

[0007] a first frame, the first frame comprising a first main body, the first main body being configured with a first open slot for mounting the photovoltaic module; a first flange being arranged on a side of the first main body away from the first open slot, the first flange being configured with a first arc-shaped slot;

[0008] a second frame connected to the first frame, the second frame comprising a second main body, the second main body being configured with a second open slot for mounting the photovoltaic module; a second flange being arranged on a side of the second main body away from the second open slot, the second flange being configured with a second arc-shaped slot;

[0009] the first arc-shaped slot and the second arc-shaped slot are used to connect with a grounding member.

[0010] In one of the embodiments, the first flange and the second flange are oppositely arranged so that the first arc-shaped slot and the second arc-shaped slot are spliced to form a first grounding hole for connecting the grounding member.

[0011] In one of the embodiments, the first flange extends from the first body in a first direction; the second flange extends from the second body in the first direction; the first arc-shaped slot and the second arc-shaped slot are distributed in a second direction and form the first grounding hole; the second direction intersects the first direction.

[0012] In one of the embodiments, the first flange extends from the first body in a second direction; the second flange extends from the second body in the second direction; the first arc-shaped slot and the second arc-shaped slot are distributed in a first direction and form the first grounding hole; the second direction intersects the first direction.

[0013] In one of the embodiments, the first arc-shaped slot and the second arc-shaped slot are oppositely arranged, the first arc-shaped slot forms a first grounding hole; the second arc-shaped slot forms a second grounding hole, the first grounding hole and the second grounding hole are respectively used for connecting the grounding member.

[0014] In one of the embodiments, the first flange extends from the first body in a first direction; the first body and the first flange are respectively provided with a first limiting column, the first limiting column, the first body and the first flange jointly enclose the first grounding hole.

[0015] The second flange extends from the second body in the first direction; the second body and the second flange are respectively provided with a second limiting column, the second limiting column, the second body and the second flange jointly enclose the second grounding hole.

[0016] In one of the embodiments, at least one of the first frame and the second frame is configured with a water guide groove.

[0017] In one of the embodiments, the frame structure further comprises a cover plate, the cover plate is provided with at least one connecting hole, the connecting hole is used for connecting the grounding member.

[0018] In one of the embodiments, the cover plate is provided with a water outlet in communication with the water guide groove.

[0019] A photovoltaic system comprising the frame structure as described above and a photovoltaic assembly mounted on the frame structure.

[0020] The frame structure for fixing the photovoltaic module comprises a first frame and a second frame, the first frame comprises a first main body and a first flange, and the second frame comprises a second main body and a second flange; the first flange is located on a side of the first main body away from the first open slot; and the second flange is located on a side of the second main body away from the second open slot. By opening a first arc-shaped slot and a second arc-shaped slot on the first flange away from the first open slot and the second flange away from the second open slot respectively, and connecting a grounding piece at the first arc-shaped slot and the second arc-shaped slot, the grounding connection between the photovoltaic modules is realized. Wherein, the first flange and the second flange can be matched left and right to form a grounding hole, or matched up and down to form a grounding hole. Alternatively, the first flange and the second flange are separately formed with a grounding hole, and then a grounding piece is connected at the grounding hole to realize the grounding connection. In this way, the frame profile connected with the photovoltaic module does not need to be pierced, which not only ensures the waterproof performance of the photovoltaic module, but also reduces the possibility of frame hidden cracks in the piercing and drilling process, and plays a role in aesthetics while grounding. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A schematic diagram of a photovoltaic system is provided for an embodiment of the present application.

[0022] Figure 2 A top view of the photovoltaic system is shown. Figure 1

[0023] Figure 3 A schematic diagram of a frame structure is provided for a first embodiment of the present application.

[0024] Figure 4 A partial schematic diagram of the frame structure is shown. Figure 3

[0025] An exploded view of the frame structure is shown. Figure 5 Figure 3 A schematic diagram of a frame structure is provided for a second embodiment of the present application.

[0026] Figure 6 A partial schematic diagram of the frame structure is shown.

[0027] Figure 7 Figure 6 A schematic diagram of a frame structure is provided for a third embodiment of the present application.

[0028] Figure 8 A partial schematic diagram of the frame structure is shown.

[0029] Figure 9 A partial schematic diagram of the frame structure is shown. Figure 8

[0030] ​​​​10, photovoltaic system; 100, frame structure; 110, first frame; 111, first flange; 112, first arc-shaped groove; 113, water guide groove; 114, first open groove; 115, first limiting column; 120, second frame; 121, second flange; 122, second arc-shaped groove; 123, second open groove; 124, second limiting column; 130, cover plate; 131, connecting hole; 132, water outlet; 200, photovoltaic module. DETAILED DESCRIPTION

[0031] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It is to be understood that the application is not limited in its application to the details set forth in the description below.

[0032] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0034] In the present application, unless specifically defined otherwise, if there are any terms "mount", "connect", "connect", "fix", and the like, these terms should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless specifically defined otherwise, if there are any terms "mount", "connect", "connect", "fix", and the like, these terms should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and are not the only embodiment.

[0037] The photovoltaic module is a basic device for realizing stable output of electric energy by photovoltaic power generation. The photovoltaic module usually comprises a photovoltaic laminated plate and a photovoltaic module frame. The photovoltaic laminated plate, also called a solar laminated plate, is formed by high-temperature pressing of single-crystal silicon cells or polycrystalline silicon cells, super-white tempered glass, polyvinyl fluoride composite film, ethylene-vinyl acetate copolymer and the like by a laminating machine, and is mainly used for absorbing solar energy and converting the solar energy into electric energy for use. The photovoltaic module frame is arranged at the edge of the photovoltaic laminated plate to protect the internal structure of the photovoltaic laminated plate and to enhance the structural strength of the photovoltaic module. In order to improve the safety of the photovoltaic power generation system, the photovoltaic module is usually grounded to reduce the electrostatic effect and leakage phenomenon of the module frame, avoid damage of the photovoltaic module caused by lightning and static electricity, and ensure the safety of the system in operation and the safety of the operation of maintenance personnel. In the existing grounding scheme, a grounding hole is arranged on the frame around the photovoltaic module by punching, and a grounding wire is fixed in the grounding hole by a screw and a nut. The grounding hole needs to pierce the photovoltaic module frame profile, and the piercing of the frame profile after the piercing can easily affect the waterproof performance of the photovoltaic module.

[0038] Based on this, an embodiment of the present application provides a frame structure which can solve the above problems. The frame structure provided by the embodiment of the present application will be described in detail below with reference to the drawings.

[0039] Referring to Figure 3 to Figure 5 illustrated in the drawings, Figure 3 a schematic view of the frame structure provided by the first embodiment of the present application is shown, Figure 4 a partial view of the frame structure shown in Figure 3 a partial view of the frame structure shown in Figure 5 an exploded view of the frame structure shown in Figure 3 The frame structure 100 provided by the embodiment of the present application is used for fixing the photovoltaic module 200, and comprises a first frame 110 and a second frame 120. The first frame 110 comprises a first main body which is configured with a first open groove 114 for mounting the photovoltaic module 200. The side of the first main body away from the first open groove 114 is provided with a first flange 111 which is configured with a first arc-shaped groove 112. The second frame 120 is connected to the first frame 110. The second frame 120 comprises a second main body which is configured with a second open groove 123 for mounting the photovoltaic module 200. The side of the second main body away from the second open groove 123 is provided with a second flange 121 which is configured with a second arc-shaped groove 122. The first arc-shaped groove 112 and the second arc-shaped groove 122 are used for connecting with a grounding member.

[0040] The frame structure 100 for fixing the photovoltaic modules 200 is provided with the first arc-shaped slot 112 and the second arc-shaped slot 122 on the first flange 111 and the second flange 121 respectively, and the grounding member is connected at the first arc-shaped slot 112 and the second arc-shaped slot 122, so that the grounding connection between the photovoltaic modules 200 is realized. The first flange 111 and the second flange 121 can be arranged in left and right cooperation to form the grounding hole, or arranged in up and down cooperation to form the grounding hole. Alternatively, the first flange 111 and the second flange 121 are separately formed with the grounding hole, and the grounding member is connected at the grounding hole to realize the grounding connection. In this way, the frame profile connected with the photovoltaic module 200 does not need to be pierced, which not only ensures the waterproof performance of the photovoltaic module 200, but also reduces the possibility of frame hidden cracks generated in the process of piercing and drilling, and realizes the grounding while beautifying. The grounding member can be a grounding screw or the like, and the adjacent photovoltaic modules 200 are connected by the grounding screw to realize the grounding of the photovoltaic modules 200 with the ground. In other embodiments, the grounding member can be a grounding bolt or other existing connecting parts.

[0041] Referring to Figure 3 to Figure 5 In one embodiment, the first flange 111 and the second flange 121 are arranged opposite to each other, so that the first arc-shaped slot 112 and the second arc-shaped slot 122 are spliced to form the first grounding hole for connecting the grounding member. Specifically, the first flange 111 extends upward from the first main body, the second flange 121 extends upward from the second main body, the tail of the first flange 111 and the tail of the second flange 121 are opposite to each other, that is, the first arc-shaped slot 112 and the second arc-shaped slot 122 are opposite to each other to form the first grounding hole, and the grounding wire is connected at the first grounding hole by the grounding member such as a grounding screw or the like to realize the grounding connection of the photovoltaic module 200. The first frame 110 is provided with a first protruding portion facing the second frame 120, and the second frame 120 is provided with a second protruding portion facing the first frame 110, the second protruding portion is an L-shaped structure, and when the first frame 110 is connected to the second frame 120, the first protruding portion abuts at the second protruding portion.

[0042] The slot wall of the first arc-shaped slot 112 and the second arc-shaped slot 122 can be provided with internal threads, so that when the grounding member is inserted into the first grounding hole, the external threads on the grounding member can engage with the internal threads of the first grounding hole, so that the grounding member will not be inclined or eccentric during the screwing process, thereby improving the stability of the grounding member in the first grounding hole and the connection reliability of the grounding member and the first grounding hole, and further ensuring the grounding reliability of the photovoltaic module 200. Further, the size of the first grounding hole can be smaller than the size of the head of the grounding member, and the hole diameter of the first grounding hole is larger than the size of the rod portion of the grounding member, so that the grounding member can be firmly clamped in the first grounding hole, thereby connecting the grounding wire to the frame structure 100. The grounding member can be a grounding screw.

[0043] Referring to Figure 3 to Figure 5 In one embodiment, the first flange 111 extends from the first main body in a first direction; the second flange 121 extends from the second main body in the first direction; the first arc-shaped slot 112 and the second arc-shaped slot 122 are distributed in a second direction and form the first grounding hole; the second direction intersects the first direction. In the figure, the first direction is indicated by the Y direction, and the second direction is indicated by the X direction. That is, the first arc-shaped slot 112 and the second arc-shaped slot 122 oppositely form the first grounding hole left and right, and the grounding wire is connected at the first grounding hole through a grounding member such as a grounding screw, etc., to realize the grounding connection of the photovoltaic module 200.

[0044] Referring to Figure 6 to Figure 7 In one embodiment, the first flange 111 extends from the first main body in a second direction; the second flange 121 extends from the second main body in the second direction; the first arc-shaped slot 112 and the second arc-shaped slot 122 are distributed in a first direction and form the first grounding hole; the second direction intersects the first direction. That is, the first arc-shaped slot 112 and the second arc-shaped slot 122 oppositely form the first grounding hole up and down, and the grounding wire is connected at the first grounding hole through a grounding member such as a grounding screw, etc., to realize the grounding connection of the photovoltaic module 200.

[0045] Referring to Figure 8 to Figure 9 In one embodiment, the first arc-shaped slot 112 and the second arc-shaped slot 122 are arranged in a spaced manner, the first arc-shaped slot 112 forms a first grounding hole; the second arc-shaped slot 122 forms a second grounding hole, and the first grounding hole and the second grounding hole are respectively used to connect a grounding member. That is, the first flange 111 and the second flange 121 are respectively provided with a grounding hole, thereby realizing the grounding connection of the photovoltaic module 200 connected to the first frame 110 and the second frame 120. Among them, the first flange 111 extends from the first main body in a first direction; the first main body and the first flange 111 are respectively provided with a first limiting column 115, and the first limiting column 115, the first main body and the first flange 111 jointly enclose the first grounding hole. Correspondingly, the second flange 121 extends from the second main body in the first direction; the second main body and the second flange 121 are respectively provided with a second limiting column 124, and the second limiting column 124, the second main body and the second flange 121 jointly enclose the second grounding hole. By separately providing the first grounding hole and the second grounding hole on the first frame 110 and the second frame 120, the grounding of the adjacent photovoltaic module 200 is realized.

[0046] Referring to Figure 3 to Figure 5As shown, in one of the embodiments, at least one of the first frame 110 and the second frame 120 is configured with a water guide groove 113. For example, in the embodiment shown in FIG. 1, the first frame 110 is configured with the water guide groove 113. Figure 4 In the embodiment shown, the first frame 110 and the second frame 120 are both configured with the water guide groove 113, so as to collect the water inside the frame structure 100 together and guide the water out.

[0047] Referring to Figure 3 to Figure 5 As shown, in one of the embodiments, the frame structure 100 further comprises a cover plate 130, and the cover plate 130 is provided with at least one connecting hole 131 for connecting the grounding member. For example, in the embodiment shown in FIG. 1, the cover plate 130 is provided with two connecting holes 131, and the grounding member is sequentially arranged in the grounding hole and the connecting hole 131. Figure 8 As shown, when the first flange 111 and the second flange 121 jointly form the grounding hole, the cover plate 130 is provided with one grounding hole, so that the grounding member can fix the cover plate 130 on the first frame 110 and the second frame 120, and improve the connection effect and waterproof performance of the first frame 110 and the second frame 120.

[0048] Referring to Figure 3 to Figure 5 As shown, in one of the embodiments, the cover plate 130 is provided with a water outlet 132 communicating with the water guide groove 113. In this way, the water accumulated in the water guide groove 113 can flow out through the water outlet 132 reserved on the cover plate 130, avoiding the accumulation of water in the water guide groove 113, thereby improving the waterproof performance of the photovoltaic module 200 and improving its use reliability.

[0049] In some embodiments, the frame structure 100 can be made of aluminum alloy or the like. The aluminum frame has the advantages of light weight and good ductility. Further, one side of the first opening groove 114 can be further provided with a glue overflow groove communicating with the first opening groove 114. In this way, when the photovoltaic module 200 is installed, the excess silicone in the first opening groove 114 will be squeezed into the glue overflow groove, ensuring the cleanliness of the front glass surface of the photovoltaic module 200. The second opening groove 123 can also be provided with a glue overflow groove on one side, which will not be described here.

[0050] In some embodiments, an anti-slip layer is provided on the first opening groove 114 at the position close to the bottom surface of the photovoltaic module 200. This anti-slip layer can be made of an anti-slip material, thereby enhancing the anti-slip effect of the bottom surface of the photovoltaic module 200. Furthermore, to ensure the stability of the insertion between the first opening groove 114 and the photovoltaic module 200, the width of the first opening groove 114 gradually narrows from the inside to the outside, so that the groove wall of the first opening groove 114 can press firmly against the photovoltaic module 200. Furthermore, an anti-detachment hook edge is provided at the edge of the first opening groove 114. This anti-detachment hook edge can hook the photovoltaic module 200, thereby ensuring the firmness of the photovoltaic module 200 installation.

[0051] Furthermore, such as Figure 1 and Figure 2 As shown, one embodiment of this application also provides a photovoltaic system 10, including the frame structure 100 as described above and a photovoltaic module 200 installed on the frame structure 100.

[0052] The photovoltaic system 10, including the aforementioned frame structure 100, achieves grounding connection between each photovoltaic module 200 by respectively opening a first arc-shaped groove 112 and a second arc-shaped groove 122 on the first flange 111 and the second flange 121, and connecting grounding components at the first arc-shaped groove 112 and the second arc-shaped groove 122. This eliminates the need to pierce the frame profile connected to the photovoltaic module 200, ensuring not only the waterproof performance of the photovoltaic module 200 but also reducing the possibility of hidden cracks in the frame during drilling, thus achieving both grounding and aesthetic appeal.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A frame structure, characterized by, A frame structure for fixing a photovoltaic module (200) comprises: a first frame (110) comprising a first body configured with a first open slot (114) for mounting the photovoltaic module (200); a first flange (111) is arranged on a side of the first body away from the first open slot (114), and the first flange (111) is configured with a first arc-shaped slot (112); a second frame (120) connected to the first frame (110); the second frame (120) comprises a second body configured with a second open slot (123) for mounting the photovoltaic module (200); a second flange (121) is arranged on a side of the second body away from the second open slot (123), and the second flange (121) is configured with a second arc-shaped slot (122); the first arc-shaped slot (112) and the second arc-shaped slot (122) are used to connect with grounding members; the first arc-shaped slot (112) and the second arc-shaped slot (122) are arranged at intervals, the first arc-shaped slot (112) forms a first grounding hole, and the second arc-shaped slot (122) forms a second grounding hole, and the first grounding hole and the second grounding hole are respectively used to connect with grounding members; the first flange (111) extends from the first body in a first direction; first limiting columns (115) are respectively arranged on the first body and the first flange (111), and the first limiting columns (115), the first body and the first flange (111) jointly enclose the first grounding hole; the second flange (121) extends from the second body in the first direction; second limiting columns (124) are respectively arranged on the second body and the second flange (121), and the second limiting columns (124), the second body and the second flange (121) jointly enclose the second grounding hole; the second direction is a direction in which the photovoltaic module is arranged, and the first direction is a width direction of the first open slot and is perpendicular to the second direction.

2. The bezel structure of claim 1, wherein the first flange (111) and the second flange (121) are arranged opposite to each other, so that the first arc-shaped slot (112) and the second arc-shaped slot (122) are spliced to form a first grounding hole, and the first grounding hole is used to connect with the grounding member.

3. The bezel structure according to claim 2, characterized by the first flange (111) extends from the first body in a first direction; the second flange (121) extends from the second body in the first direction; the first arc-shaped slot (112) and the second arc-shaped slot (122) are distributed in a second direction and form the first grounding hole; the second direction intersects the first direction; the second direction is a direction in which the photovoltaic module is arranged, and the first direction is a width direction of the first open slot and is perpendicular to the second direction.

4. The bezel structure of claim 2, wherein The first flange (111) extends from the first main body in a second direction; the second flange (121) extends from the second main body in the second direction; the first arc-shaped slot (112) and the second arc-shaped slot (122) are distributed in a first direction and form the first grounding hole; the second direction intersects the first direction. The second direction is the arrangement direction of the photovoltaic module, and the first direction is the width direction of the first opening slot and is perpendicular to the second direction.

5. The bezel structure of claim 1, wherein At least one of the first frame (110) and the second frame (120) is configured with a water guide groove (113).

6. The bezel structure of claim 5, wherein, The frame structure further comprises a cover plate (130) provided with at least one connecting hole (131) for connecting the grounding member.

7. The bezel structure of claim 6, wherein The cover plate (130) is provided with a water outlet (132) in communication with the water guide groove (113).

8. A photovoltaic system characterized by, The frame structure (100) comprises a photovoltaic module (200) mounted on the frame structure (100).

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