Photovoltaic module connection device and photovoltaic system

Abstract

The embodiment of the utility model provides a kind of photovoltaic module connecting device and photovoltaic system, it is related to photovoltaic technical field.The photovoltaic module connecting device includes substrate and fixed part, substrate is used to fix prestressed cable;Fixed part includes first fixed plate, second fixed plate and third fixed plate, first fixed plate and second fixed plate are parallel to each other;First fixed plate and second fixed plate are connected by third fixed plate, first fixed plate is connected with substrate at angle;The large face section of third fixed plate is parallelogram structure;Parallelogram structure makes third fixed plate be configured as when being subjected to deformation force along the direction of first fixed plate and second fixed plate connecting line, by the diagonal change of parallelogram structure, deformation is converted into height size change perpendicular to the direction of the connecting line, to realize deformation compensation.It is simple in structure, simple and convenient to install, low in cost, and assembly adaptability is better.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and more specifically, to a photovoltaic module connection device and a photovoltaic system. Background Technology

[0002] In existing technologies, photovoltaic systems typically include photovoltaic modules, prestressed cables, and connecting devices. During actual installation, the frame of the photovoltaic module is connected to the first part of the connecting device, and the second part of the connecting device is connected to the prestressed cables.

[0003] However, existing connection devices have many parts, are relatively complex to install, and are costly; moreover, they have poor assembly adaptability. Utility Model Content

[0004] This utility model provides a photovoltaic module connection device and a photovoltaic system, which has a simple structure, is easy and convenient to install, has low cost, and has good assembly adaptability.

[0005] The embodiments of this utility model can be implemented as follows: An embodiment of this utility model provides a photovoltaic module connection device for fixing the frame of a photovoltaic module to a prestressed cable, comprising: A substrate, the substrate being used to fix the prestressed cable; The fastener includes a first fixing plate, a second fixing plate, and a third fixing plate, wherein the first fixing plate and the second fixing plate are parallel to each other; the first fixing plate and the second fixing plate are connected through the third fixing plate; and the first fixing plate is connected to the substrate at an angle. The large-area cross-section of the third fixing plate has a parallelogram structure. This parallelogram structure allows the third fixing plate to be configured such that, when subjected to a deformation force along the line connecting the first and second fixing plates, the deformation is converted into a height change perpendicular to this line by a diagonal change in the parallelogram structure, thereby achieving deformation compensation. In an optional embodiment, a retaining member is provided on the base plate for fixing the prestressed cable.

[0006] In an optional embodiment, the retaining member includes a connecting portion and a first fixing arm and a second fixing arm that are parallel to each other, the first fixing arm and the second fixing arm being connected through the connecting portion; the substrate has a first fixing hole and a second fixing hole that are spaced apart, the first fixing arm passing through the first fixing hole and the second fixing arm passing through the second fixing hole.

[0007] In an optional embodiment, the first fixing hole is a waist-shaped hole, and / or the second fixing hole is a waist-shaped hole.

[0008] In an optional embodiment, both the first fixing hole and the second fixing hole are oblong holes, and the extending direction of the first fixing hole is perpendicular to the extending direction of the second fixing hole.

[0009] In an optional embodiment, there are multiple first fixing holes, multiple second fixing holes, and multiple retaining members; each retaining member is connected to one first fixing hole and one second fixing hole.

[0010] In an optional embodiment, the first fixing plate has at least one connecting hole, and a threaded fastener passes through the connecting hole and connects to the photovoltaic module frame to fix the first fixing plate and the photovoltaic module frame.

[0011] In an optional embodiment, the substrate and the fastener are integrally formed.

[0012] An embodiment of this utility model also provides a photovoltaic system, including a photovoltaic module, a prestressed cable, and a photovoltaic module connection device as described in any of the above embodiments, wherein the photovoltaic module and the prestressed cable are connected through the photovoltaic module connection device.

[0013] The beneficial effects of the photovoltaic module connection device and photovoltaic system of this utility model embodiment include, for example: The photovoltaic module connection device includes a substrate and fasteners. The substrate is used to fix the prestressed cables. The fasteners include a first fixing plate, a second fixing plate, and a third fixing plate. The first and second fixing plates are parallel to each other and connected by the third fixing plate. The first fixing plate is connected to the substrate at an angle. The large-area cross-section of the third fixing plate is a parallelogram structure. The parallelogram structure allows the third fixing plate to be configured such that when subjected to a deformation force along the line connecting the first and second fixing plates, the deformation is converted into a height change perpendicular to the connecting line through the diagonal change of the parallelogram structure, thereby achieving deformation compensation. By setting the large-area cross-section of the third fixing plate to be a parallelogram, deformation adjustment during use is facilitated. That is, by changing the included angle of the parallelogram of the third fixing plate, the relative height between the first and second fixing plates is changed, thus allowing the clamping space between the first and second fixing plates to be adaptively adjusted during installation. By reasonably adjusting the relative positions of the first and second fixing plates, they can be smoothly nested into the photovoltaic module frame at an appropriate angle, ensuring a tight fit between the first and second fixing plates and the photovoltaic module frame. This avoids structural stress caused by forced assembly and improves assembly adaptability. Furthermore, this photovoltaic module connection device has few parts, a simple structure, low cost, and is easy and convenient to install. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a photovoltaic system provided in an embodiment of the present invention from a first-view perspective; Figure 2 This is a schematic diagram of a photovoltaic system provided in an embodiment of the present invention from a second perspective; Figure 3 This is a schematic diagram of a photovoltaic system from a third-person perspective provided in an embodiment of this utility model; Figure 4 This is a schematic diagram from a first-view perspective of the photovoltaic module connection device provided in an embodiment of this utility model; Figure 5 This is a schematic diagram from a second perspective of the photovoltaic module connection device provided in an embodiment of this utility model; Figure 6 This is a third-view schematic diagram of the photovoltaic module connection device provided in an embodiment of the present invention.

[0016] Icons: 1000 - Photovoltaic system; 100 - Photovoltaic module connection device; 110 - Substrate; 111 - First fixing hole; 112 - Second fixing hole; 120 - Fixing member; 121 - First fixing plate; 1211 - Connecting hole; 122 - Second fixing plate; 123 - Third fixing plate; 130 - Holding member; 131 - First fixing arm; 132 - Second fixing arm; 133 - Connecting part; 200 - Photovoltaic module frame; 300 - Prestressed cable. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model 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 utility model.

[0021] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0022] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0023] In existing technologies, photovoltaic systems typically include photovoltaic modules, prestressed cables, and connection devices. During actual installation, the frame of the photovoltaic module is connected to the first part of the connection device, and the second part of the connection device is connected to the prestressed cables. However, existing connection devices have many components, making installation relatively complex and costly; moreover, they have poor assembly adaptability.

[0024] Based on this, please refer to Figures 1-6 The photovoltaic module connection device 100 provided in the embodiments of this utility model can effectively improve the technical problems mentioned above. The photovoltaic module connection device 100 has a simple structure, is easy and convenient to install, has low cost, and good assembly adaptability. This photovoltaic connection device is applied to a photovoltaic system 1000, and the photovoltaic system 1000 with this connection device also has the same functions as described above, which will not be elaborated further here.

[0025] Figure 1 This is a schematic diagram of the photovoltaic system 1000 provided in an embodiment of the present invention from a first-view perspective; Figure 2 This is a schematic diagram of the photovoltaic system 1000 provided in an embodiment of the present invention from a second perspective; Figure 3 This is a schematic diagram of the photovoltaic system 1000 provided in an embodiment of this utility model from a third-view perspective. Please refer to [link / reference]. Figures 1-3In this embodiment, the photovoltaic system 1000 includes a photovoltaic module, a prestressed cable 300, and a photovoltaic module connecting device 100. The photovoltaic module and the prestressed cable 300 are connected by the photovoltaic module connecting device 100. Specifically, the prestressed cable 300 is fixed to the substrate 110. A first fixing plate 121, a second fixing plate 122, and a third fixing plate 123 together form a clamping space. The photovoltaic module frame 200 is fixed within the clamping space, and the first fixing plate 121 and the second fixing plate 122 are in close contact with the surface of the photovoltaic module frame 200. The second fixing plate 122 contacts and presses against the upper surface of the photovoltaic module frame 200, the third fixing plate 123 contacts the side of the photovoltaic module frame 200, and the second fixing plate 122 contacts and secures the photovoltaic module frame 200.

[0026] The photovoltaic module connection device 100 is described in detail below.

[0027] Figure 4 This is a schematic diagram from a first-view perspective of the photovoltaic module connection device 100 provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram from a second perspective of the photovoltaic module connection device 100 provided in an embodiment of the present utility model; Figure 6 This is a third-view schematic diagram of the photovoltaic module connection device 100 provided in an embodiment of the present invention.

[0028] Please see Figures 4-6In this embodiment, the photovoltaic module connection device 100 includes a substrate 110 and a fixing member 120. The substrate 110 is used to fix the prestressed cable 300. The fixing member 120 includes a first fixing plate 121, a second fixing plate 122, and a third fixing plate 123. The first fixing plate 121 and the second fixing plate 122 are parallel to each other. The first fixing plate 121 and the second fixing plate 122 are connected through the third fixing plate 123. The first fixing plate 121 is connected to the substrate 110 at an angle. The large-area cross-section of the third fixing plate 123 has a parallelogram structure. The parallelogram structure allows the third fixing plate 123 to be configured such that when subjected to a deformation force along the line connecting the first fixing plate 121 and the second fixing plate 122, the deformation is converted into a height dimension change perpendicular to the line connecting the parallelogram structure through the diagonal change of the parallelogram structure, thereby achieving deformation compensation. By setting the large-area cross-section of the third fixing plate 123 to be a parallelogram, deformation adjustment during use is facilitated. Specifically, by changing the included angle of the parallelogram of the third fixing plate 123, the relative height between the first fixing plate 121 and the second fixing plate 122 is changed, allowing the clamping space between the first fixing plate 121 and the second fixing plate 122 to be adaptively adjusted during installation. By reasonably adjusting the relative positions of the first fixing plate 121 and the second fixing plate 122, they can be smoothly nested into the photovoltaic module frame 200 at an appropriate angle, ensuring a tight fit between the first fixing plate 121 and the second fixing plate 122 and the photovoltaic module frame 200. This avoids structural stress caused by forced assembly and improves assembly adaptability. Furthermore, this photovoltaic module connecting device 100 has few parts, a simple structure, low cost, and is easy and convenient to install.

[0029] Optionally, in this embodiment, the first fixing plate 121, the second fixing plate 122, and the third fixing plate 123 are integrally formed. Alternatively, the first fixing plate 121, the second fixing plate 122, and the third fixing plate 123 can also be formed separately and then connected by welding, bonding, or other fixing methods. In this embodiment, the third fixing plate 123 is perpendicularly connected to the first fixing plate 121, the third fixing plate 123 is perpendicularly connected to the second fixing plate 122, and the first fixing plate 121 is perpendicularly connected to the substrate 110. Of course, the connection angles between the first fixing plate 121 and the third fixing plate 123, the second fixing plate 122 and the third fixing plate 123, and the first fixing plate 121 and the substrate 110 can be adjusted according to the specific installation situation and are not limited here.

[0030] Optionally, in this embodiment, the four corner areas of the third fixing plate 123 are provided with flexible hinge structures. The flexible hinge structures are used to guide the third fixing plate 123 to produce plastic or elastic deformation along a preset deformation path. Optionally, the third fixing plate 123 can also be designed to include at least one pair of adjustable links, which form a pair of sides of the parallelogram structure. By adjusting the effective length of the adjustable links, the overall shape and position of the third fixing plate 123 can be actively adjusted.

[0031] To securely hold the photovoltaic module frame 200 and prevent it from wobbling, in this embodiment, the distance between the first fixing plate 121 and the second fixing plate 122 is less than or equal to the thickness of the photovoltaic module frame 200. This design ensures that when the photovoltaic module frame 200 is secured between the first fixing plate 121 and the second fixing plate 122, a pre-tightening force is generated between them. This pre-tightening force guarantees the firmness and stability of the connection, achieving the function of preventing loosening.

[0032] Please continue reading. Figures 4-6 In this embodiment, a retaining member 130 is provided on the substrate 110 for fixing the prestressed cable 300. Specifically, the retaining member 130 in this embodiment includes a connecting portion 133 and a first fixing arm 131 and a second fixing arm 132 that are parallel to each other. The first fixing arm 131 and the second fixing arm 132 are connected by the connecting portion 133. The substrate 110 has a first fixing hole 111 and a second fixing hole 112 that are spaced apart. The first fixing arm 131 passes through the first fixing hole 111, and the second fixing arm 132 passes through the second fixing hole 112. By setting the first fixing arm 131 and the second fixing arm 132 that are parallel to each other and passing through the spaced fixing holes on the substrate 110, a symmetrical two-point support structure is formed between the retaining member 130 and the substrate 110. The retaining member 130 has a simple structure and is very convenient to install. Furthermore, this design can evenly distribute the load transmitted by the prestressed cable 300 to two different positions on the substrate 110, effectively avoiding the torque or torsion that may be generated by single-point fixing, greatly enhancing the rigidity and stability of the connection, and preventing loosening or deflection under long-term dynamic loads.

[0033] Optionally, the retaining member 130 in this embodiment is U-shaped. That is, the connecting part 133 is arc-shaped. To simplify the structure and assembly process, the retaining member 130 in this embodiment is a U-bolt. Of course, the retaining member 130 can also be a U-shaped clamp, an injection-molded U-shaped clamp, etc., which is not limited here. The connecting part 133 can also be a plate-like structure, which is perpendicularly connected to the first fixing arm 131 and the second fixing arm 132 respectively. The connecting part 133 can also be designed in other shapes, which is not limited here. In addition, the retaining member 130 can be designed in other structural shapes besides U-shape, which is not limited here, as long as it can fix the prestressed cable 300.

[0034] Please see Figures 4-6 In this embodiment, the first fixing hole 111 is an oblong hole, and / or the second fixing hole 112 is an oblong hole. Only the first fixing hole 111, only the second fixing hole 112, or both can be designed as oblong holes. By designing the first fixing hole 111 and / or the second fixing hole 112 as oblong holes, the clamping member 130 can be finely adjusted within a certain range during installation, thereby compensating for the installation position tolerance of the prestressed cable 300 and improving the adaptability and fault tolerance of the project.

[0035] Furthermore, in this embodiment, both the first fixing hole 111 and the second fixing hole 112 are oblong holes, and the extension direction of the first fixing hole 111 is perpendicular to the extension direction of the second fixing hole 112. By setting the extension directions of the two oblong holes to be perpendicular to each other, the clamping member 130 can be independently and continuously linearly adjusted in two orthogonal directions. This design effectively compensates for the accumulated tolerances generated during the manufacturing and installation of the photovoltaic module frame 200, the prestressed cable 300, and the substrate 110 itself, ensuring that the clamping member 130 can be accurately aligned with the target installation position. The unique combination of the two vertical oblong holes, in addition to providing two-dimensional translational freedom, indirectly gives the clamping member 130 the ability to deflect at a small angle around an axis perpendicular to the plane of the substrate 110. Installers can fine-tune the circumferential angle of the clamping member 130 by coordinating the different positions of the two fixing arms within their respective oblong holes. This is crucial for correcting angular deviations caused by the torsional installation tilt of the prestressed cable 300 structure. Furthermore, this design eliminates the need for highly precise alignment during installation. Operators can first place the two fixing arms of the clamping component 130 into the approximate positions of the two oblong holes, and then perform final precise positioning and locking. This reduces the initial precision requirements for the mounting hole positions, simplifies the operation, and makes the installation process faster and more flexible.

[0036] To ensure the reliability of the connection between the prestressed cable 300 and the photovoltaic module connection device 100 and the stability of the fixation, in this embodiment, there are multiple first fixing holes 111, second fixing holes 112 and clamping members 130; each clamping member 130 is connected to one first fixing hole 111 and one second fixing hole 112.

[0037] Please see Figure 5 To ensure the firmness and reliability of the connection between the photovoltaic module frame 200 and the photovoltaic module connection device 100, at least one connecting hole 1211 is provided on the first fixing plate 121 in this embodiment. A threaded fastener passes through the connecting hole 1211 and connects to the photovoltaic module frame 200 to fix the first fixing plate 121 and the photovoltaic module frame 200. Specifically, the threaded fastener in this embodiment is a rivet. Of course, the threaded fastener can also be a bolt, screw, etc., which is not limited here. In addition to using threaded fasteners to fix the first fixing plate 121 and the photovoltaic module frame 200, other methods such as magnetic attraction and adhesion can also be used for fixation, which is not limited here.

[0038] To reduce the number of parts, the substrate 110 and the fastener 120 in this embodiment are integrally formed. Furthermore, this integral forming eliminates potential weak points arising from connections (such as welding or bolting) between the substrate 110 and the fastener 120, such as weld fatigue and stress concentration at the connection hole 1211. This allows the entire connection device to bear and transfer loads as a whole, significantly improving its structural stiffness, resistance to bending deformation, and fatigue life, making it particularly suitable for withstanding long-term wind vibration and dynamic loads of the photovoltaic system 1000. The integral forming process combines multiple parts that previously required separate production, processing, and management into one. This simplifies the production process, reducing multiple steps such as material preparation, drilling, welding, and grinding, thereby reducing raw material waste, energy consumption, and labor costs, resulting in significant economic benefits. During installation, operators only need to handle one complete part, rather than assembling and aligning multiple individual components. This reduces installation steps and the number of fasteners, lowers the skill requirements for installers, and effectively avoids the possibility of omissions or errors in on-site installation, thus greatly improving the efficiency and accuracy of on-site installation. Because it is manufactured as a single unit, the relative position and angle between the substrate 110 and the fixing component 120 are ensured by the mold or processing equipment, resulting in extremely high consistency and precision. This avoids the dimensional errors that may accumulate during the reassembly process of separate manufacturing, ensuring stable and reliable product quality and facilitating standardized and large-scale applications.

[0039] Optionally, the substrate 110 and the fastener 120 can be stamped from materials such as steel, or they can be injection molded from engineering injection molding materials.

[0040] The assembly process of the photovoltaic module connection device 100 provided in this embodiment is as follows: Rotate the third fixing plate 123 to adjust the relative positions of the first fixing plate 121 and the second fixing plate 122. At an appropriate angle, the first fixing plate 121 and the second fixing plate 122 are nested on the photovoltaic module frame 200. Threaded fasteners pass through the connecting holes 1211 on the first fixing plate 121 and are connected and fixed to the lower surface of the photovoltaic module frame 200. During the tightening process between the first fixing plate 121 and the photovoltaic module frame 200, the third fixing plate 123 rotates, causing the second fixing plate 122 to make tight contact with the upper surface of the photovoltaic module frame 200. Then, the threaded fasteners are tightened. The prestressed cable 300 is fixed within the retaining member 130 of the substrate 110.

[0041] In summary, the photovoltaic module connection device 100 includes a substrate 110 and a fixing member 120. The substrate 110 is used to fix the prestressed cable 300. The fixing member 120 includes a first fixing plate 121, a second fixing plate 122, and a third fixing plate 123. The first fixing plate 121 and the second fixing plate 122 are parallel to each other. The first fixing plate 121 and the second fixing plate 122 are connected by the third fixing plate 123. The first fixing plate 121 is connected to the substrate 110 at an angle. The large-area cross-section of the third fixing plate 123 has a parallelogram structure. The parallelogram structure allows the third fixing plate 123 to be configured such that when subjected to a deformation force along the line connecting the first fixing plate 121 and the second fixing plate 122, the deformation is converted into a height dimension change perpendicular to the connecting line direction through the diagonal change of the parallelogram structure, thereby achieving deformation compensation. By setting the large-area cross-section of the third fixing plate 123 to be a parallelogram, deformation adjustment during use is facilitated. Specifically, by changing the included angle of the parallelogram of the third fixing plate 123, the relative height between the first fixing plate 121 and the second fixing plate 122 is changed, allowing the clamping space between the first fixing plate 121 and the second fixing plate 122 to be adaptively adjusted during installation. By reasonably adjusting the relative positions of the first fixing plate 121 and the second fixing plate 122, they can be smoothly nested into the photovoltaic module frame 200 at an appropriate angle, ensuring a tight fit between the first fixing plate 121 and the second fixing plate 122 and the photovoltaic module frame 200. This avoids structural stress caused by forced assembly and improves assembly adaptability. Furthermore, this photovoltaic module connecting device 100 has few parts, a simple structure, low cost, and is easy and convenient to install.

[0042] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic module connection device for fixing a photovoltaic module frame (200) to a prestressed cable (300), characterized in that, include: A substrate (110) is used to fix the prestressed cable (300). The fastener (120) includes a first fixing plate (121), a second fixing plate (122), and a third fixing plate (123). The first fixing plate (121) and the second fixing plate (122) are parallel to each other. The first fixing plate (121) and the second fixing plate (122) are connected through the third fixing plate (123). The first fixing plate (121) is angularly connected to the base plate (110). The large cross-section of the third fixing plate (123) is a parallelogram structure; the parallelogram structure enables the third fixing plate (123) to be configured such that when subjected to a deformation force along the line connecting the first fixing plate (121) and the second fixing plate (122), the deformation is converted into a height dimension change perpendicular to the line connecting the parallelogram structure through the diagonal change of the parallelogram structure, thereby achieving deformation compensation.

2. The photovoltaic module connection device according to claim 1, characterized in that, A retaining member (130) is provided on the substrate (110), and the retaining member (130) is used to fix the prestressed cable (300).

3. The photovoltaic module connection device according to claim 2, characterized in that, The retaining member (130) includes a connecting part (133) and a first fixing arm (131) and a second fixing arm (132) that are parallel to each other. The first fixing arm (131) and the second fixing arm (132) are connected through the connecting part (133). The substrate (110) has a first fixing hole (111) and a second fixing hole (112) that are spaced apart. The first fixing arm (131) passes through the first fixing hole (111), and the second fixing arm (132) passes through the second fixing hole (112).

4. The photovoltaic module connection device according to claim 3, characterized in that, The first fixing hole (111) is a waist-shaped hole, and / or the second fixing hole (112) is a waist-shaped hole.

5. The photovoltaic module connection device according to claim 3, characterized in that, Both the first fixing hole (111) and the second fixing hole (112) are oblong holes, and the extension direction of the first fixing hole (111) is perpendicular to the extension direction of the second fixing hole (112).

6. The photovoltaic module connection device according to claim 3, characterized in that, The number of the first fixing hole (111), the second fixing hole (112) and the number of the retaining member (130) are all multiple; each retaining member (130) is connected to one first fixing hole (111) and one second fixing hole (112).

7. The photovoltaic module connection device according to claim 1, characterized in that, The first fixing plate (121) has at least one connecting hole (1211), and a threaded fastener passes through the connecting hole (1211) and is connected to the photovoltaic module frame (200) to fix the first fixing plate (121) and the photovoltaic module frame (200).

8. The photovoltaic module connection device according to claim 1, characterized in that, The substrate (110) and the fastener (120) are integrally formed.

9. A photovoltaic system, characterized in that, It includes a photovoltaic module, a prestressed cable (300), and a photovoltaic module connection device (100) according to any one of claims 1-8, wherein the photovoltaic module and the prestressed cable (300) are connected by the photovoltaic module connection device (100).

Images