Bridge and photovoltaic power station

Abstract

The application discloses a bridge and a photovoltaic power station. The bridge comprises a main body, the main body comprises two connecting parts arranged oppositely, and recessed areas for buckling the same side frames of two adjacent photovoltaic panels are limited between the two connecting parts. At least one connecting part is provided with a clamping jaw capable of being bent based on the connecting part, and the clamping jaw clamps and tightly clamps one side frame of the photovoltaic panel when being bent to a working position. The bridge provided by the application is connected through the two oppositely arranged connecting parts to form the recessed areas capable of being buckled on the side frames of the photovoltaic panels. When the gap connection between the two adjacent photovoltaic panels is performed, the recessed areas can be buckled on the same side frames of the two photovoltaic panels to realize the stable contact with the two photovoltaic panels. Meanwhile, the clamping jaw of the at least one connecting part can be bent based on the connecting part, and the operator can rotate the clamping jaw to realize the clamping of the side frame of the photovoltaic panel after the bridge contacts with the two photovoltaic panels, so that the connection of the bridge is realized, and other fasteners are not needed and the operation is convenient.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power plant technology, and in particular to a cable tray and a photovoltaic power plant. Background Technology

[0002] In current photovoltaic systems, cleaning of photovoltaic panels is mostly achieved by cleaning robots traversing the surface of the panels. However, due to the gaps between the two photovoltaic modules, varying degrees of settlement often occur during long-term operation. This can cause the robot to get stuck when passing between the two photovoltaic modules. To solve the height difference problem between the two photovoltaic modules and ensure smooth passage for the robot, connectors are needed to connect the two photovoltaic modules. Compared with the current cable tray solution, this saves bolts and can reduce costs in large-area photovoltaic power plants. However, currently, connectors are mostly installed at the notches in the module frame. When the module frame is under stress, deformation occurs, causing the connectors to loosen and fail, preventing the cleaning robot from passing.

[0003] Therefore, how to ensure a stable connection between two photovoltaic panels and reduce the overall structural and assembly costs is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a cable tray and a photovoltaic power station to meet the gap connection between photovoltaic panels and reduce the overall structural cost and assembly cost.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A cable tray, comprising:

[0007] The main body includes two connecting parts arranged opposite each other, with a recessed area between the two connecting parts defined for fastening the same side frame of two adjacent photovoltaic panels; at least one of the connecting parts is provided with a claw that can be bent based on the connecting part, and the claw clamps and secures one side frame of the photovoltaic panel when bent to the working position.

[0008] Preferably, in the above-mentioned cable tray, the connecting part includes a support area, the span of which in the length direction of the main body is greater than the interval between two adjacent photovoltaic panels, so as to contact the two adjacent photovoltaic panels; the claws are arranged on both sides of the support area in the length direction of the main body.

[0009] Preferably, in the above-mentioned cable tray, a plurality of the clamps are provided on one side of the support area, and the spacing between adjacent clamps is 4.5mm-5.5mm.

[0010] Preferably, in the above-mentioned cable tray, the claw is formed by opening a connecting groove on the connecting part, and the depth of the connecting groove accounts for 75%-85% of the structural depth of the connecting part.

[0011] Preferably, in the above-mentioned cable tray, the two connecting parts are a first connecting part and a second connecting part, the first connecting part is located on the light-receiving side of the photovoltaic panel, the second connecting part is located on the backlight side of the photovoltaic panel, and the claw is located only on the second connecting part.

[0012] Preferably, in the above-mentioned cable tray, the width of the first connecting portion is smaller than the width of the frame of the photovoltaic panel.

[0013] Preferably, in the above-mentioned cable tray, the width of the second connecting portion is greater than the width of the first connecting portion.

[0014] Preferably, in the above-mentioned cable tray, the corner of the cantilever side of the first connecting part is provided with a rounded corner with a radius of 4mm-6mm.

[0015] Preferably, in the above-mentioned cable tray, the main body is a U-shaped plate with a straight structure, and the thickness of the main body is not less than 0.8 mm.

[0016] A photovoltaic power station includes a plurality of photovoltaic panels arranged at intervals, and adjacent photovoltaic panels are connected by a bridge as described in any of the above embodiments.

[0017] As can be seen from the above technical solution, the cable tray provided in this disclosure includes a main body, and the main body includes two oppositely arranged connecting parts. The two oppositely arranged connecting parts have a certain interval and are connected into an integral structure by plates to form a recessed area on the main body. The recessed area can be fastened to the frame structure on one side of the photovoltaic panel. When the cable tray needs to connect the gap between two photovoltaic panels, it can achieve contact between the cable tray and the two photovoltaic panels by fastening the recessed area to the frame position of the two photovoltaic panels. At the same time, at least one connecting part is provided with a claw that can be bent based on the connecting part. When the claw is bent to the working position, it can clamp and lock one side frame of the photovoltaic panel. When the recessed area is fastened to the frame position of the two photovoltaic panels, the claw can be bent to achieve the connection of the cable tray to the gap between the two photovoltaic panels, thus providing a connection basis for the cleaning robot to pass between the two photovoltaic panels.

[0018] Unlike existing technologies, the cable tray provided in this disclosure only requires the recessed area to be fastened to the frame structure of the two photovoltaic panels when connecting the gap between them, and the claws to bend and fix them to the frame of the photovoltaic panel. No other fasteners are required, and the installation of the cable tray and the connection of two adjacent photovoltaic panels can be achieved manually or with simple tools and operations, resulting in lower production and installation costs. At the same time, since this disclosure achieves fixation to the frame of the photovoltaic panel by bending the claws, the connection is firm. When the frame is deformed to a certain extent, the connector can maintain the connection between the two photovoltaic panels due to the locking effect of the claws, allowing the cleaning robot to pass smoothly even in a slightly loose state, unlike the snap-fit ​​structure which will disconnect when the frame is deformed and loose.

[0019] The photovoltaic power station disclosed herein has the aforementioned bridge between two adjacent photovoltaic panels to achieve gap connection between adjacent photovoltaic panels. Since the bridge has the aforementioned effect, the photovoltaic power station also has the aforementioned effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the cable tray structure provided in this disclosure;

[0022] Figure 2 This is a schematic diagram of the cable tray being assembled between two photovoltaic panels.

[0023] Figure 3 for Figure 2 Schematic diagram of the contact structure in area A;

[0024] Figure 4 for Figure 2 A schematic diagram of the A-section structure assembly;

[0025] Figure 5 This is a schematic diagram of the connection structure between the bridge and the photovoltaic panels with large gaps.

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the cable tray;

[0027] Figure 7 for Figure 6 A side view diagram;

[0028] Figure 8 for Figure 7A top-down view.

[0029] Wherein, 10-connecting part; 110-supporting area; 120-connecting groove; 20-recessed area; 30-claw; 410-first connecting part; 420-second connecting part; 500-photovoltaic panel. Detailed Implementation

[0030] The core of this application is to disclose a cable tray and a photovoltaic power station to meet the gap connection between photovoltaic panels and reduce the overall structural cost and assembly cost.

[0031] To enable those skilled in the art to better understand the present application, embodiments of the present application will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model described in the claims. Additionally, the complete content of the structures represented in the following embodiments is not limited to those necessary for the solution of the utility model described in the claims.

[0032] like Figure 1 and Figure 2 As shown, this disclosure provides a cable tray for connecting two adjacent photovoltaic panels 500 with a gap. Specifically, the cable tray includes a main body, and the main body includes two opposing and spaced-apart connecting parts 10. The two connecting parts 10 are fixedly connected to each other by other plates to form a recessed area 20 structure. The shape and size of the recessed area 20 are designed to match the frame of the photovoltaic panel 500 according to the application of the cable tray provided in this disclosure. That is, when the cable tray is in use, the recessed area 20 can be fastened to the frame structure of the photovoltaic panel 500 to achieve stable contact between the cable tray and the photovoltaic panel 500 structure.

[0033] When connecting two photovoltaic panels 500 with a gap using the cable tray provided in this disclosure, the recessed area 20 is fastened to the frame structure of the photovoltaic panel 500 to form a rigid contact between the two photovoltaic panels 500. Based on this, as... Figure 1 and Figure 3 As shown, at least one connecting portion 10 is also provided with a claw 30. The claw 30 is an adjustable structure capable of bending based on the connecting portion 10. It can achieve bending based on the connecting portion 10 by means of slots on both sides or by fixing it individually. It should be noted that the claw 30 is kept in the same plane as the connecting portion 10 in the initial position, and its bending path includes a working position, such as... Figure 3 As shown, based on the cable tray being snapped together with the frame of the photovoltaic panel 500 through the recessed area 20, as... Figure 4 As shown, bending the claw 30 to the working position allows the frame of the photovoltaic module to be clamped by the claw 30, thereby locking the cable tray.

[0034] In the above embodiments, the bendability of the claw 30 greatly facilitates the installation process. On the one hand, the cooperation between the recessed area 20 and the claw 30 allows the cable tray to be connected to the photovoltaic panel 500 without the need for other fasteners; only the operator needs to bend the claw 30 to complete the assembly of the cable tray between the two photovoltaic panels 500. On the other hand, the connection between the claw 30 and the frame of the photovoltaic panel 500 is a connection structure where contact is made followed by bending. Therefore, the claw 30 can be appropriately adjusted according to the actual size and shape of the photovoltaic panel 500 during bending to adapt to photovoltaic panels 500 of different sizes and achieve the best fixing effect, further improving the versatility and adaptability of the cable tray. Furthermore, as... Figure 5 As shown, when a larger gap between photovoltaic panels 500 needs to be connected, the same connection method can be used by simply increasing the blank size of the cable tray to fix the cable tray between two adjacent photovoltaic panels 500.

[0035] It should also be noted that, since the bridge provided in this embodiment is fixed to the frame of the photovoltaic panel 500 by bending the claw 30, the connection is firm. When the frame of the photovoltaic panel 500 is deformed, the connector can maintain the connection between the two photovoltaic panels 500 in a certain loose state due to the wrapping and locking effect of the claw 30, thus allowing the cleaning robot to pass smoothly. Unlike the snap-fit ​​structure, the connection will not break when the frame is deformed and loose.

[0036] Furthermore, based on the above structure, in order to improve the stability of the cable tray connection to the photovoltaic panel 500, the connecting part 10 on the cable tray, which is provided with claws 30, also includes a support area 110. The support area 110 is used to provide a stable rigid connection structure. Specifically, in the length direction of the main body, that is, in the arrangement direction of the photovoltaic panel 500, as shown... Figure 2 and Figure 5 As shown, the span of the support area 110 is greater than the interval between two adjacent photovoltaic panels 500, so that when the cable tray is installed, the support area 110 can contact the two adjacent photovoltaic panels 500 to form a continuous extension structure between the two photovoltaic panels 500, thereby providing more stable support for the photovoltaic panels 500. Based on this structure, claws 30 are also arranged on both sides of the support area 110 along the length direction of the main body. This allows the claws 30 to better cooperate with the frame of the photovoltaic panels 500 while maintaining a stable connection of the photovoltaic panels 500, clamping and fixing them from both sides. Through the structural distribution of the support area 110 and the claws 30, the connection effect of the connection part 10 for the two photovoltaic panels 500 can be maintained while the claws 30 are set on the connection part 10.

[0037] Based on the above embodiments, to improve the connection stability of the claws 30 to the photovoltaic panel 500, multiple claws 30 are provided on one side of the support area 110, with a spacing of 4.5mm-5.5mm between adjacent claws 30. The uniform spacing of the claws 30 allows for more even application of clamping force, and the synergistic effect of multiple claws 30 can better adapt to the frames of photovoltaic panels 500 of different sizes and shapes, improving the versatility and adaptability of the cable tray. Simultaneously, the spacing of the claws 30 provides bending space without being too large, thus not affecting the connection stability. It should be noted that the number of claws 30 on both sides of the support area 110 can be the same to ensure similar connection strength on both sides; alternatively, the number of claws 30 on both sides of the support area 110 can be different to accommodate the frame structures of photovoltaic panels 500 with different strength requirements on both sides.

[0038] In some embodiments of this disclosure, the claw 30 is formed by opening a connecting groove 120 on the connecting portion 10. Taking a single claw 30 as an example, a connecting groove 120 is opened on each side of the main body along its length direction. The connecting groove 120 extends towards the bottom of the recessed area 20, so that the claw 30 forms a relatively independent structure that can be bent based on the connecting portion 10. It should also be noted that the groove depth of the connecting groove 120 accounts for 75%-85% of the structural depth of the connecting portion 10, so that the claw 30 has sufficient structural length to maintain good performance during bending, achieve stable clamping of the frame of the photovoltaic panel 500, and not affect the overall structural strength of the connecting portion 10 due to the excessive depth of the connecting groove 120, thereby providing a strong guarantee for the long-term stable operation of the photovoltaic system. Specifically, in one embodiment of this disclosure, two claws 30 are provided on one side of the support area 110. The width of a single claw 30 is 5mm, and the width of the connecting groove 120 provided on one side of the claw 30 is also 5mm. This is to make the size of the claws 30 and the connecting groove 120 similar when multiple claws 30 are provided, thereby improving the uniformity of the connection locking force of the connecting part 10. At the same time, the width of the connecting part 10 is 17.8mm, and the length of the connecting groove 120 is 14.5mm, so that the claws 30 have sufficient bending length to meet the requirements of surrounding and locking the frame.

[0039] Furthermore, in some embodiments of this disclosure, for ease of explanation, such as Figure 6 , Figure 7 and Figure 8As shown, the two connecting parts 10 on the main body are the first connecting part 410 and the second connecting part 420. The first connecting part 410 is located on the light-receiving side of the photovoltaic panel 500, that is, at the top of the frame of the photovoltaic panel 500 in the vertical direction; while the second connecting part 420 is located on the backlight side of the photovoltaic panel 500, so as to clamp the frame from the bottom of the frame of the photovoltaic panel 500 in the vertical direction. Based on this, the claw 30 is only provided on the second connecting part 420. It should be noted that the claw 30 provided on the second connecting part 420 clamps the frame of the photovoltaic panel 500 from the bottom of the photovoltaic panel 500 to avoid the claw 30 affecting the light-receiving side of the photovoltaic panel 500, thereby ensuring that the photovoltaic panel 500 can receive sunlight to the maximum extent and improve the photovoltaic power generation efficiency. At the same time, the first connecting part 410 on the light-receiving side can maintain the continuity of its structure. When the cleaning robot needs to cross the bridge, the continuous structure of the first connecting part 410 can provide stable and continuous path support for the cleaning robot, preventing the uneven structure on the surface of the first connecting part 410 from affecting the smooth operation of the cleaning robot.

[0040] In order to balance the structural connection stability of the cable tray and the degree of impact on the photovoltaic panel 500, in the cable tray provided in this disclosure, the width of the first connecting part 410 is smaller than the width of the frame of the photovoltaic panel 500. This ensures that the first connecting part 410 will not cause excessive interference to the frame of the photovoltaic panel 500 and will not cross the frame and intrude into the light-receiving area of ​​the photovoltaic panel 500. This avoids damage to the photovoltaic panel 500 during the installation of the cable tray and will not block the light-receiving area of ​​the photovoltaic panel 500, ensuring that the installation of the cable tray will not affect the power generation efficiency of the photovoltaic panel 500.

[0041] Based on the aforementioned structure, the width of the second connecting portion 420 is greater than the width of the first connecting portion 410. The wider second connecting portion 420 provides a larger support area and stronger structural strength from the bottom of the photovoltaic panel 500, thus better bearing the weight of the photovoltaic panel 500 and external forces. Simultaneously, the wider second connecting portion 420 also provides sufficient space for the installation of the claws 30, allowing the claws 30 to more firmly clamp the frame of the photovoltaic panel 500 and reducing the risk of structural strength reduction due to the installation of the claws 30. It should also be noted that the wider second connecting portion 420 improves the convenience and flexibility of cable tray installation. For example, in one embodiment of this disclosure, the width of the second connecting portion 420 is 17.8 mm, while the width of the first connecting portion 410 is 15.8 mm. The wider second connecting part 420 can more easily fit with the frame of the photovoltaic panel 500, reducing stress concentration and improving the overall service life and reliability of the cable tray. The claw 30 can also be designed with a wider structure to increase the coverage of the claw 30 when bending, so that the claw 30 can adapt to photovoltaic panels 500 of different sizes and shapes and achieve stable clamping, thus improving the versatility of the cable tray.

[0042] In addition, considering that the first connecting part 410 will directly contact the cleaning robot at the top in the vertical direction, in order to improve the structural strength and safety of the cable tray, the tip corner of the cantilever side of the first connecting part 410 is provided with a rounded corner with a radius of 4mm-6mm to reduce the potential risk of the first connecting part 410 scratching the cleaning robot; at the same time, the rounded corner end structure of the first connecting part 410 can also reduce stress concentration, avoid damage to the cable tray due to excessive stress during use, and further improve the overall performance and reliability of the cable tray.

[0043] Furthermore, in the cable tray provided in this disclosure, the main body is set as a U-shaped plate with a straight structure, that is, the two connecting parts 10 are arranged in parallel, so that the main body has a more regular and symmetrical structure, improving its production convenience and stability during use. At the same time, the thickness of the main body is not less than 0.8mm, to ensure that the cable tray can withstand a large load during use and will not deform or be damaged due to insufficient thickness.

[0044] Furthermore, it should be noted that an elastic gasket can be provided in the area where the connecting part 10 contacts the frame of the photovoltaic panel 500 to improve the fit between the connecting part 10 and the frame of the photovoltaic panel 500, thereby improving the force transmission effect during the use of the cable tray and enhancing the stability of the cable tray installation.

[0045] Furthermore, this disclosure also provides a photovoltaic power station, which includes a plurality of spaced photovoltaic panels 500. Adjacent photovoltaic panels 500 are connected by a bridge provided in any of the above embodiments, allowing a cleaning robot to traverse between adjacent photovoltaic panels 500, thereby reducing the amount of equipment required for the cleaning robot and lowering the maintenance cost of the photovoltaic power station. It should be noted that since the bridge has the same technical effects as those provided in any of the above embodiments, the photovoltaic power station also possesses the aforementioned technical effects, which will not be elaborated upon further here.

[0046] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may not be defined in the listed steps or units, but may include steps or units not listed.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable tray, characterized in that, include: The main body includes two connecting parts (10) arranged opposite to each other, and a recessed area (20) is defined between the two connecting parts (10) for fastening the same side frame of two adjacent photovoltaic panels (500); at least one of the connecting parts (10) is provided with a claw (30) that can be bent based on the connecting part (10), and the claw (30) clamps and locks one side frame of the photovoltaic panel (500) when bent to the working position.

2. The cable tray as described in claim 1, characterized in that, The connecting part (10) includes a support area (110), the span of the support area (110) in the length direction of the main body is greater than the interval between two adjacent photovoltaic panels (500) so as to contact the two adjacent photovoltaic panels (500); the claws (30) are arranged on both sides of the support area (110) in the length direction of the main body.

3. The cable tray as described in claim 2, characterized in that, The support area (110) is provided with multiple claws (30) on one side, and the distance between adjacent claws (30) is 4.5mm-5.5mm.

4. The cable tray as described in claim 2, characterized in that, The claw (30) is formed after the connecting groove (120) is opened on the connecting part (10), and the depth of the connecting groove (120) accounts for 75%-85% of the structural depth of the connecting part (10).

5. The cable tray as described in claim 1, characterized in that, The two connecting parts (10) are a first connecting part (410) and a second connecting part (420), respectively. The first connecting part (410) is located on the light-receiving side of the photovoltaic panel (500), and the second connecting part (420) is located on the backlight side of the photovoltaic panel (500). The claw (30) is located only on the second connecting part (420).

6. The cable tray as described in claim 5, characterized in that, The width of the first connecting part (410) is smaller than the width of the frame of the photovoltaic panel (500).

7. The cable tray as described in claim 5, characterized in that, The width of the second connecting part (420) is greater than the width of the first connecting part (410).

8. The cable tray as described in claim 5, characterized in that, The corner of the cantilever side of the first connecting part (410) is provided with a rounded corner with a radius of 4mm-6mm.

9. The cable tray as described in claim 1, characterized in that, The main body is a U-shaped plate with a straight structure, and the thickness of the main body is not less than 0.8mm.

10. A photovoltaic power station, characterized in that, It includes a plurality of photovoltaic panels (500) spaced apart, and adjacent photovoltaic panels (500) are connected by a bridge as described in any one of claims 1-9.

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