Bridge frame single body, bridge frame assembly and photovoltaic power station
By using sliding connections and shielding components on individual cable trays, the problem of cable tray jamming during photovoltaic module rotation was solved, achieving cable tray stability and smooth operation of the cleaning robot, thus reducing construction costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-04-07
AI Technical Summary
Existing cable trays are prone to jamming due to sand and dust entering the gaps during the rotation of photovoltaic modules, causing the expansion and contraction function to fail, and even the cable trays may be pulled apart.
The design adopts a single-unit cable tray design, with the first and second cable trays slidingly connected. The second cable tray connects each of the first cable trays, ensuring that the single cable tray can adjust its posture to adapt to the angle deviation of the photovoltaic module group. The shielding components prevent dust accumulation and jamming, and the standardized parts specifications simplify installation.
This reduces the probability of cable tray jamming during the photovoltaic module rotation process, improves the operational stability and construction efficiency of the photovoltaic cleaning robot, and reduces construction costs and time.
Smart Images
Figure CN224097656U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic power plant technology, and more specifically, to a cable tray unit, a cable tray module, and a photovoltaic power plant. Background Technology
[0002] A photovoltaic (PV) tracking system is a device that allows PV modules to adjust their angle according to the sun's position to maximize the absorption of solar radiation, playing a crucial role in improving PV power generation efficiency. Common PV tracking systems include single-axis tracking systems and dual-axis tracking systems. Among these, the flat single-axis tracking system is the most widely used.
[0003] To improve the cleaning efficiency of photovoltaic (PV) cleaning robots, multiple PV module groups using different tracking systems are typically arranged in the same column, allowing the PV cleaning robot to have a longer cleaning path. Within the same column, there is a certain distance between adjacent PV module groups (i.e., adjacent PV module groups using different tracking systems). To ensure that the PV cleaning robot can pass through all PV module groups in the same column, bridges need to be installed between adjacent PV module groups.
[0004] Since each photovoltaic module group uses an independent drive system, there may be situations where two adjacent photovoltaic module groups have different deflection angles. This requires the cable tray connecting the two to be able to adjust itself according to the aforementioned angle deviation to ensure that the cable tray does not disconnect from the two photovoltaic module groups.
[0005] Existing cable trays are nested telescopic tube structures, typically consisting of a first tube and a second tube, with the second tube inserted inside the first tube. Both can be extended or retracted under external force to change the length of the cable tray and accommodate different deflection angles between adjacent photovoltaic modules. Because the first and second tubes are nested together, a gap exists between them, allowing sand and dust to easily enter and cause jamming and blockage, ultimately leading to loss of telescopic function. In severe cases, during the rotation of photovoltaic modules, the cable tray may even break.
[0006] Therefore, how to reduce the probability of cable tray jamming during the photovoltaic module switching process is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0007] In view of this, the purpose of this application is to provide a single cable tray unit to reduce the probability of cable tray jamming during the photovoltaic module switching process;
[0008] Another objective of this application is to provide a cable tray assembly and a photovoltaic power station having the aforementioned cable tray unit.
[0009] To achieve the above objectives, this application provides the following technical solution:
[0010] The first aspect of this application provides a cable tray unit, the cable tray unit including a first cable tray body and a second cable tray body, the first cable tray body being at least two, and the two first cable tray bodies located at the ends being used to connect to target mounting bodies on both sides respectively, at least one of the target mounting bodies on both sides being a photovoltaic module group;
[0011] Each of the first cable tray bodies is located on the same side of the second cable tray body, and any two adjacent first cable tray bodies are connected through the second cable tray body. At least one of the two first cable tray bodies connected to the second cable tray body is slidably connected to the second cable tray body.
[0012] In one possible implementation, one of the first cable tray body and the second cable tray body is provided with a first sliding part, and the other is provided with a second sliding part. The first sliding part and the second sliding part slide in cooperation along a first direction and form a limit along a second direction. The first direction is perpendicular to the second direction.
[0013] In one possible implementation, one of the first sliding portion and the second sliding portion is a groove, and the other is a sliding portion that slides in cooperation with the groove, the groove extending along the first direction.
[0014] In one possible implementation, the sliding part includes a sliding pin and / or a sliding block.
[0015] In one possible implementation, each of the first bridge sections is located on the same straight line;
[0016] And / or,
[0017] Each of the second bridge sections is located on the same straight line.
[0018] In one possible implementation, the first bridge frame is a tubular structural member or a plate-like structural member;
[0019] And / or,
[0020] The second bridge frame consists of a tubular or plate-shaped structural component.
[0021] In one possible implementation, the first bridge frame is a polygonal tube, and the first bridge frame has chamfered edges at least adjacent to the corners of the walking wheels of the photovoltaic cleaning robot.
[0022] In one possible implementation, the second cable tray body is disposed on the target side of the first cable tray body;
[0023] or,
[0024] The second cable tray body is disposed on at least one side of the first cable tray body other than the target side. The target side of the first cable tray body is provided with a shielding member, which can shield the gap between any two adjacent first cable tray bodies.
[0025] The target side of the first bridge frame is the side facing the limiting wheel of the photovoltaic cleaning robot.
[0026] In one possible implementation, the shielding member is a single unit, fixed to one of the first cable tray bodies, and slidably engaged with the other first cable tray bodies;
[0027] or,
[0028] The shielding component is a single unit, and it is slidably engaged with each of the first cable tray bodies;
[0029] or,
[0030] Any two adjacent first cable tray bodies are connected by the shielding member, and at least one of the two first cable tray bodies connected to the shielding member is slidably connected to the shielding member.
[0031] In one possible implementation, the shielding member has first guide surfaces at both ends, and the distance from the first guide surfaces to the first bridge body gradually increases along the direction from the ends of the shielding member to the middle.
[0032] And / or,
[0033] The two ends of the second cable tray are disposed on the second guide surface, and the distance from the second guide surface to the first cable tray gradually increases along the direction from the end of the second cable tray to the middle.
[0034] In one possible implementation, the first cable tray body is provided with a first sliding part, the second cable tray body is provided with a second sliding part, and the shielding member is provided with a third sliding part;
[0035] The first sliding part and the second sliding part are in sliding engagement;
[0036] The first sliding part and the third sliding part slide together.
[0037] The cable tray unit provided in this application connects each of the first cable trays via a second cable tray body. Two first cable trays at each end are connected to target installations on both sides, such as parking positions and photovoltaic module groups, or photovoltaic module groups on both sides, to fill the gap between the two target installations, thus forming a path for the photovoltaic cleaning robot to move through the gap. Each first cable tray body is located on the same side of the second cable tray body, ensuring they are essentially aligned, facilitating connection to the target installations on both sides. At least one first cable tray body slides into the second cable tray body, allowing the cable tray unit to adjust its posture according to the angle of the target installations on both sides, adapting to angular deviations. Because the second cable tray body connecting the first cable trays is located outside the first cable tray body, it is less prone to jamming due to dust accumulation compared to nested installations. Furthermore, the components connecting to the target installations on both sides are all first cable tray bodies, resulting in more uniform part specifications, which is beneficial for on-site construction.
[0038] A second aspect of this application provides a cable tray assembly, including a cable tray unit, a cable tray mounting area formed between two target mounting bodies, and the cable tray unit is arranged at both ends of the cable tray mounting area;
[0039] The cable tray unit includes a cable tray unit and a rotating arm, wherein the cable tray unit is a cable tray unit as described in any of the above claims;
[0040] The two first cable tray bodies located at the ends are each connected to the rotating arm via a universal joint. The first end of the rotating arm is connected to the first cable tray body via the universal joint, and the second end of the rotating arm is used to hinge to the target mounting body.
[0041] In one possible implementation, the rotating arm is connected to the target mounting body via a support beam, and the support beam is provided on both sides of the target mounting body in the cable tray mounting area;
[0042] The second end of the rotating arm is hinged to the support beam.
[0043] In one possible implementation, the support beam includes a bottom wall and side walls located on both sides of the bottom wall;
[0044] The bottom wall of the support beam and the two side walls of the support beam form an open groove structure. The rotating arm is hinged inside the support beam and can swing out from the open side of the support beam.
[0045] In one possible implementation, the distance between the two sidewalls of the support beam gradually increases in the direction from the bottom wall side to the opening side;
[0046] And / or,
[0047] The side wall of the support beam is bent outward at the end away from the bottom wall of the support beam, forming a folded plate section.
[0048] In one possible implementation, the bottom wall of the support beam is provided with fixing holes and / or sand drainage holes.
[0049] In one possible implementation, one of the universal joints connected to the two first cable tray bodies is a first universal joint and the other is a second universal joint; or, both universal joints connected to the two first cable tray bodies are either the first universal joint or the second universal joint.
[0050] Both the first universal joint and the second universal joint include a first rotating part and a second rotating part. The first rotating part and the second rotating part of the first universal joint are fixedly connected, and the first rotating part and the second rotating part of the second universal joint are rotatably connected through a rotating shaft.
[0051] The first rotating part is hinged to the first bridge frame body via a first hinge axis, and the second rotating part is hinged to the rotating arm via a second hinge axis. Both the first hinge axis and the second hinge axis are perpendicular to the rotating axis.
[0052] In one possible implementation, both the first rotating part and the second rotating part are U-shaped groove structures, and the groove depth of the first rotating part is greater than the groove depth of the second rotating part.
[0053] In one possible implementation, the first bridge body is located outside the end of the rotating arm;
[0054] or,
[0055] The extension line of the first bridge frame intersects with the rotating arm.
[0056] The cable tray assembly provided in this application has all the technical effects of the aforementioned cable tray unit, which will not be repeated here.
[0057] A third aspect of this application provides a photovoltaic power station, comprising at least one column of photovoltaic modules, wherein the column of photovoltaic modules includes at least two groups of photovoltaic modules arranged sequentially at intervals, and each group of photovoltaic modules is equipped with an independent tracking system;
[0058] In the same photovoltaic module column, any two adjacent photovoltaic module groups are connected by a bridge frame assembly, and / or, the photovoltaic module groups and the parking position are connected by a bridge frame assembly, wherein the bridge frame assembly is the bridge frame assembly as described in any of the above.
[0059] The photovoltaic power station provided in this application has all the technical effects of the aforementioned bridge frame components, and will not be described in detail here. Attached Figure Description
[0060] 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.
[0061] Figure 1 This is a schematic diagram of the bridge assembly structure when the two photovoltaic module groups have the same angle, as disclosed in the embodiments of this application;
[0062] Figure 2 This is a schematic diagram of the bridge assembly structure when the angles of the two photovoltaic module groups are different, as disclosed in the embodiments of this application;
[0063] Figure 3 This is a schematic diagram of the structure of the photovoltaic bridge module as shown in the front view of the embodiments of this application;
[0064] Figure 4 This is a schematic diagram of the structure of the bridge module as seen from the back of the photovoltaic system, as disclosed in the embodiments of this application.
[0065] Figure 5 This is an exploded view of a cable tray unit disclosed in an embodiment of this application;
[0066] Figure 6 This is a schematic diagram of the structure of the support beam disclosed in the embodiments of this application;
[0067] Figure 7 This is a top view of the support beam disclosed in the embodiments of this application;
[0068] Figure 8 This is a schematic diagram of the end face of the support beam disclosed in the embodiments of this application;
[0069] Figure 9 This is a schematic diagram of the structure of the universal joint disclosed in the embodiments of this application;
[0070] Figure 10 This is a schematic diagram of the bridge assembly structure when the angles of the two photovoltaic module groups are the same, as disclosed in another embodiment of this application;
[0071] Figure 11 This is an exploded view of a cable tray unit disclosed in another embodiment of this application;
[0072] Figure 12 This is a schematic diagram of the structure of the second cable tray body disclosed in another embodiment of this application;
[0073] Figure 13 This is a cross-sectional view of the second cable tray body disclosed in another embodiment of this application;
[0074] Figure 14 This is a schematic diagram of the structure of the shielding component disclosed in the embodiments of this application;
[0075] Figure 15 This is a side view of the shielding component disclosed in an embodiment of this application.
[0076] The meanings of the various reference numerals in the figure are as follows:
[0077] 100-Photovoltaic module group;
[0078] 200-Cable tray assembly; 210-Cable tray unit; 211-First cable tray body; 2111-Sliding pin mounting hole; 2122-Second guide surface; 212-Second cable tray body; 2121-Sliding groove; 213-Sliding part; 214-Blocking part; 2141-Third sliding part; 2142-First guide surface; 2143-Limiting groove plate; 2144-Back plate; 220-Rotating arm; 230-Support beam; 231-Support beam bottom wall; 2311-Fixing hole; 2312-Sand drop hole; 232-Support beam side wall; 2321-Folding plate part; 240-Universal joint; 241-First rotating part; 242-Second rotating part; 243-Rotating shaft. Detailed Implementation
[0079] This application discloses a cable tray to reduce the probability of the cable tray getting stuck during the photovoltaic module switching process;
[0080] This application also discloses a cable tray assembly and a photovoltaic power station having the above-mentioned cable tray unit.
[0081] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the application as described in the claims. Additionally, the complete composition represented in the embodiments below is not limited to what is necessary as the solution to the application described in the claims. It should be noted that, for ease of description, only the parts relevant to the application are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0082] like Figure 1 , Figure 2 and Figure 5As shown, the cable tray unit 210 disclosed in this application includes a first cable tray body 211 and a second cable tray body 212. There are at least two first cable tray bodies 211, with the two first cable tray bodies 211 located at the ends being used to connect to target mounting bodies on the sides, at least one of which is a photovoltaic module group 100. For example, one of the target mounting bodies on both sides may be a parking position, and the other may be a photovoltaic module group 100; alternatively, both target mounting bodies on both sides may be photovoltaic module groups 100. For ease of understanding, the following description assumes that both target mounting bodies on both sides are photovoltaic module groups 100.
[0083] When there are two first bridge frames 211, the two first bridge frames 211 are respectively connected to the photovoltaic module groups 100 on both sides; when there are more than two first bridge frames 211, the two first bridge frames 211 located at the ends are respectively connected to the photovoltaic module groups 100 on both sides, while the first bridge frames 211 located in the middle do not need to be connected to the photovoltaic module groups 100.
[0084] It should be noted that the two first bridge bodies 211 located at the ends can be directly connected to the two photovoltaic module groups 100, or they can be indirectly connected to the photovoltaic module groups 100 through other components; for example, they can be indirectly connected to the photovoltaic module groups 100 through components such as rotating arms 220 and support beams 230.
[0085] When the two first bridge frames 211 located at the ends are directly connected to the two photovoltaic module groups 100, the first bridge frames 211 can be connected to the photovoltaic module groups 100 through universal joints 240. That is, one end of the universal joint 240 is hinged to the first bridge frame 211 and the other end is hinged to the photovoltaic module group 100, so that when the rotation angles of the photovoltaic module groups 100 on both sides are different, the universal joint 240 can increase the degree of freedom of adjustment.
[0086] In this embodiment, multiple photovoltaic modules driven by the same tracking system are referred to as photovoltaic module group 100, meaning that the tracking system can drive a photovoltaic module group 100 to operate synchronously. The tracking system is not limited to a single-axis tracking system; photovoltaic power plants using other tracking systems are also applicable to the bridge unit 210 disclosed in this embodiment.
[0087] Each of the first bridge frame bodies 211 is located on the same side of the second bridge frame body 212. This arrangement ensures that each of the first bridge frame bodies 211 is basically on the same straight line, and that the two first bridge frame bodies 211 at the ends are basically the same height. This eliminates the need to change the structure of the photovoltaic module group 100 and makes it easier to connect with the photovoltaic module group 100 arranged at the same height on both sides.
[0088] Any two adjacent first cable trays 211 are connected by a second cable tray 212. When there are two first cable trays 211, they are connected by a second cable tray 212. When there are more than two first cable trays 211, taking three as an example, the first and second first cable trays 211 are connected by a second cable tray 212, and the second and third first cable trays 211 are also connected by a second cable tray 212. Those skilled in the art will understand that the number of first cable trays 211 can also be other, such as 4, 5, or 7. Those skilled in the art can choose the specific number of first cable trays 211 according to usage requirements. That is, when there are m first cable trays 211, there are m-1 second cable trays 212, where m ≥ 2.
[0089] At least one of the two first cable tray bodies 211 connected to the second cable tray body 212 is slidably connected to the second cable tray body 212. Those skilled in the art will understand that as long as one of the two first cable tray bodies 211 connected to the second cable tray body 212 is slidably connected to the second cable tray body 212, the length of the cable tray unit 210 can be adjusted as needed. Of course, to increase the adjustment range, both first cable tray bodies 211 connected to the second cable tray body 212 can be designed to be slidably connected to the second cable tray body 212.
[0090] The cable tray unit 210 disclosed in this application connects each of the first cable tray units 211 through the second cable tray unit 212, and connects the two first cable tray units 211 located at both ends to the photovoltaic module groups 100 on both sides respectively, so as to fill the gap between the two photovoltaic module groups 100, thereby forming a path for the photovoltaic cleaning robot to walk in the gap.
[0091] Each of the first bridge frames 211 is located on the same side of the second bridge frame 212, ensuring that the first bridge frames 211 are essentially aligned on the same straight line, facilitating connection with the photovoltaic module groups 100 on both sides. Those skilled in the art can arrange the first bridge frames 211 on the same straight line according to installation precision; similarly, the second bridge frames 212 can also be arranged on the same straight line. Furthermore, it should be noted that deviations in the extension direction of each first bridge frame 211 are permissible when installation errors exist.
[0092] In one specific embodiment of this application, the second bridge frame 212 can be arranged inside each of the first bridge frame 211. This layout not only meets the running requirements of the walking wheels of the photovoltaic cleaning robot, but also adapts to the running of the limit wheels of the photovoltaic cleaning robot, thereby ensuring the smooth and stable operation of the photovoltaic cleaning robot.
[0093] At least one first bridge frame 211 and a second bridge frame 212 are slidably engaged, allowing the bridge frame unit 210 to automatically adjust its posture according to the different angles of the photovoltaic module groups 100 on both sides, through the sliding of the first bridge frame 211 and the second bridge frame 212, to adapt to the angle deviation of the photovoltaic module groups 100. The bridge frame unit 210 disclosed in this application, because the second bridge frame 212 connecting each first bridge frame 211 is located outside the first bridge frame 211, is less prone to jamming due to dust accumulation compared to nested structures.
[0094] In existing nested tube structures, the dimensions of the inner and outer tubes differ, resulting in different dimensions for the universal joints connecting them. In this embodiment, the component connecting to the photovoltaic module groups 100 on both sides is the first bridge frame 211, with more uniform part specifications. Specifically, the universal joints 240 connecting to the photovoltaic module groups 100 on both sides have the same dimensions, significantly reducing the variety of structural components, lowering costs, facilitating on-site installation, and helping to shorten the construction period.
[0095] Due to the complex on-site installation environment of photovoltaic power plants, there are situations where the upper and lower spans of the photovoltaic module groups 100 on both sides are different. This necessitates that the cable tray units 210 installed at the upper and lower ends have different lengths. The cable tray unit 210 disclosed in this embodiment can change its length by sliding the second cable tray body 212 of the first cable tray body 211. That is, the cable tray unit 210 disclosed in this embodiment can automatically unfold to different lengths according to actual conditions, thereby effectively meeting practical installation requirements.
[0096] The cable tray unit 210 disclosed in this embodiment is applicable not only to the case where both photovoltaic module groups 100 rotate simultaneously, but also to the case where one side rotates while the other side remains stationary. That is, the cable tray unit 210 disclosed in this embodiment is also applicable to the stopping position (the stopping position of the photovoltaic cleaning robot). At the stopping position, the stopping side remains stationary while one side of the photovoltaic module group 100 rotates, causing an angular deviation between the two, which is also applicable to the cable tray unit 210 disclosed in this embodiment.
[0097] like Figure 1 As shown in a specific embodiment of this application, one of the first cable tray body 211 and the second cable tray body 212 is provided with a first sliding part, and the other is provided with a second sliding part. The first sliding part and the second sliding part slide in cooperation along a first direction and form a limit along a second direction, with the first direction perpendicular to the second direction. That is, by utilizing the connection between the first sliding part and the second sliding part, the first cable tray body 211 and the second cable tray body 212 can only slide relative to each other in one direction, while other directions are limited, preventing the first cable tray body 211 and the second cable tray body 212 from disengaging from each other during use.
[0098] It should be noted that since the first bridge frame 211 and the second bridge frame 212 will change their posture according to requirements, the first and second directions are not absolute directions, but rather relative directions. For example, if the first sliding part slides along the extension direction of the second sliding part, then the extension direction of the second sliding part is the first direction, and the direction perpendicular to the second sliding part is the second direction; if the second sliding part slides along the extension direction of the first sliding part, then the extension direction of the first sliding part is the first direction, and the direction perpendicular to the first sliding part is the second direction. It should also be noted that there are two second directions perpendicular to the first direction. Referring to a three-axis coordinate system, both second directions perpendicular to the first direction can form a limit, ensuring that the first bridge frame 211 and the second bridge frame 212 can only slide along their respective extension directions, while other directions are restricted.
[0099] like Figure 5 As shown, exemplarily, one of the first sliding portion and the second sliding portion is a groove 2121, and the other is a sliding portion 213 that slides in cooperation with the groove 2121, the groove 2121 extending along a first direction. Taking the groove 2121 being formed on the second cable tray body 212 as an example, the sliding portion 213 is provided on the first cable tray body 211. The sliding portion 213 may include a sliding pin and / or a sliding block. When the sliding portion 213 is a sliding pin, multiple spaced-apart sliding pin mounting holes 2111 can be provided on the first cable tray body 211. By installing the sliding pin in different sliding pin mounting holes 2111, different elongation ranges of the cable tray unit 210 can be obtained. Those skilled in the art can insert the sliding pin into the corresponding sliding pin mounting holes 2111 according to actual needs to suit the current application scenario. One sliding pin can be installed on each first cable tray body 211, or multiple sliding pins can be installed as needed.
[0100] The sliding part 213 can also be a sliding block, which can be designed as an integral structure with the first cable tray body 211. The length of the slide groove 2121 can also affect the extension range of the cable tray unit 210, and those skilled in the art can set the length of the slide groove 2121 according to their needs.
[0101] The first cable tray body 211 and the second cable tray body 212 can both be tubular structural components such as polygonal tubes and round tubes, or plate structural components such as angle steel and bent plates. Of course, they can also be other shapes of tubes or profiles. The cross-sectional shapes of the first cable tray body 211 and the second cable tray body 212 can be the same or different, and the specific design can be made according to actual needs.
[0102] The first bridge frame 211 and the second bridge frame 212 can be made of square tubing as the manufacturing base. When square tubing is selected, during the installation of the bridge frame unit 210, one of the panels of the first bridge frame 211 and the second bridge frame 212 is chosen to be coplanar with the panel of the photovoltaic module. It should be noted that the above-mentioned coplanar state only applies when the photovoltaic module groups 100 on both sides are at the same angle. Once the photovoltaic module groups 100 on both sides are at different angles, the above-mentioned coplanar state will disappear due to the change in the posture of the bridge frame unit 210. When the first bridge frame 211 and the second bridge frame 212 are square tubing, compared with round tubing, the contact area between the photovoltaic cleaning robot and the bridge frame unit 210 is larger, and slippage is less likely to occur when climbing slopes.
[0103] When the first bridge frame 211 and / or the second bridge frame 212 are polygonal tubes, the corners of the first bridge frame 211 and / or the second bridge frame 212 adjacent to the walking wheels and limit wheels of the photovoltaic cleaning robot are chamfered. In this embodiment, chamfering the periphery of the first bridge frame 211 and / or the second bridge frame 212 can prevent the walking wheels and limit wheels of the photovoltaic cleaning robot from colliding with the corners of the first bridge frame 211 and / or the second bridge frame 212, making the operation of the photovoltaic cleaning robot more stable.
[0104] There is a gap between any two adjacent first bridge frame bodies 211. When the gap is large, when the photovoltaic cleaning robot walks to this point, its limiting wheel may collide with the end of the first bridge frame body 211 at the gap.
[0105] Based on this, such as Figure 10 and Figure 11 As shown in a specific embodiment of this application, by changing the structure of the bridge frame unit 210, collisions with the limiting wheels can be avoided. For ease of understanding, the side of the first bridge frame body 211 facing the limiting wheels of the photovoltaic cleaning robot is defined as the target side.
[0106] For example, the second bridge body 212 can be set on the target side of the first bridge body 211. In this embodiment, the second bridge body 212 is set on the target side of the first bridge body 211. The second bridge body 212 can block the gap between the two first bridge bodies 211, so that when the limiting wheel of the photovoltaic cleaning robot moves to the gap between the two first bridge bodies 211, it will not collide with the end face of the first bridge body 211, thereby avoiding the problem of bumping the limiting wheel.
[0107] Furthermore, the second bridge frame 212 can also be disposed on at least one side of the first bridge frame 211 other than the target side. When the second bridge frame 212 is disposed on the non-target side of the first bridge frame 211, a blocking member 214 can be disposed on the target side of the first bridge frame 211. The blocking member 214 can block the gap between any two adjacent first bridge frames 211. It should be noted that the blocking member 214 should not affect the degree of freedom of relative sliding of the first bridge frame 211 and the second bridge frame 212. In this embodiment, the blocking member 214 is disposed on the target side of the first bridge frame 211, so that the limiting wheel cooperates with the blocking member 214, thereby avoiding the problem of the gap between the first bridge frames 211 hitting the limiting wheel.
[0108] When the cable tray unit 210 simultaneously has a second cable tray body 212 and a shielding member 214, the structural strength requirement for the second cable tray body 212 is lower, and the size of the second cable tray body 212 can be reduced adaptively. For example, the cross-sectional area of the second cable tray body 212 can be designed to be smaller than the cross-sectional area of the first cable tray body 211.
[0109] Only one shielding member 214 may be provided, even if the number of first cable tray bodies 211 exceeds two. The shielding member 214 may be fixed to one of the first cable tray bodies 211 and slide in engagement with the other first cable tray bodies 211. Of course, the shielding member 214 may also slide in engagement with each of the first cable tray bodies 211.
[0110] It should be noted that the blocking member 214 can also be configured in the same way as the second cable tray body 212, that is, any two adjacent first cable tray bodies 211 are connected by the blocking member 214, meaning the number of blocking members 214 is the same as the number of second cable tray bodies 212. At least one of the two first cable tray bodies 211 connected to the blocking member 214 is slidably connected to the blocking member 214. Alternatively, one first cable tray body 211 can be fixedly connected to the blocking member 214, while the other first cable tray body 211 is slidably connected to the blocking member 214; or both first cable tray bodies 211 can be slidably connected to the blocking member 214.
[0111] like Figure 14 and Figure 15 As shown, in order to ensure that the limiting wheels of the photovoltaic cleaning robot can smoothly transition to the blocking member 214 when moving to it, and to prevent the limiting wheels from hitting the end of the blocking member 214, in this embodiment, the blocking member 214 is provided with first guide surfaces 2142 at both ends. Along the direction from the end of the blocking member 214 to the middle, the distance from the first guide surface 2142 to the first bridge body 211 gradually increases.
[0112] When the limiting wheel moves to the end of the blocking member 214, it first contacts the first guide surface 2142 at one end. Since the thickness of the first guide surface 2142 gradually increases, the traveling wheel will gradually transition along the first guide surface 2142 to the thicker main body of the blocking member 214.
[0113] When the limiting wheel is about to leave the blocking member 214, it first contacts the first guide surface 2142 at the other end. Since the thickness of the first guide surface 2142 gradually decreases, the traveling wheel will gradually transition to the first bridge frame body 211 along the first guide surface 2142.
[0114] like Figure 12 and Figure 13 As shown, based on the above reasons, the two ends of the second bridge frame 212 are disposed on the second guide surface 2122, and the distance from the second guide surface 2122 to the first bridge frame 211 gradually increases along the direction from the end of the second bridge frame 212 to the middle.
[0115] The aforementioned second bridge frame 212 with the second guide surface 2122 can be applied to the target side of the first bridge frame 211. When the second bridge frame 212 with the second guide surface 2122 is installed on the target side of the first bridge frame 211, the limiting wheels of the photovoltaic cleaning robot can also smoothly transition onto the second bridge frame 212, preventing the limiting wheels from bumping into the end of the second bridge frame 212.
[0116] It should be noted that when the second cable tray body 212 is installed on the non-target side of the first cable tray body 211, a second cable tray body 212 with a second guide surface 2122 can also be selected. The second guide surface 2122 can be obtained by flattening the end of the second cable tray body 212, or it can be obtained by other processes. This embodiment does not limit the preparation method of the second guide surface 2122.
[0117] When the shielding member 214 is slidably engaged with the first cable tray body 211, the first cable tray body 211 is provided with a first sliding part, the second cable tray body 212 is provided with a second sliding part, and the shielding member 214 is provided with a third sliding part 2141.
[0118] The first sliding part slidably engages with the second sliding part; the first sliding part slidably engages with the third sliding part 2141. The second sliding part and the third sliding part 2141 can slidably engage with the same first sliding part to reduce the number of first sliding parts on the first cable tray 211. Of course, different first sliding parts can also be provided on the first cable tray 211 to slidably engage with the second sliding part and the third sliding part 2141 respectively.
[0119] The specific types of the first and second sliding parts can be referred to in the above embodiments, and will not be repeated here. The third sliding part 2141 can adopt the same structure as the second sliding part.
[0120] like Figure 14 and Figure 15 As shown, when the third sliding part 2141 is a groove and the first sliding part is a limiting pin, a limiting groove plate 2143 can be provided on the side of the shielding member 214 facing away from the first bridge body 211. The limiting groove plate 2143 can be provided on both the upper and lower sides of the back plate 2144 of the shielding member 214, so that a limiting groove is formed between the two limiting groove plates 2143. The limiting part of the limiting pin can be accommodated in the limiting groove. For example, if the limiting part of the limiting pin is a nut or screw, accommodating the limiting part in the limiting groove can prevent the limiting part of the limiting pin from hitting the limiting wheel of the photovoltaic cleaning robot.
[0121] The ends of the limiting groove plate 2143 furthest from the back plate 2144 can be folded together, with the upper end of the limiting groove plate 2143 bent downwards to form a folded plate, and similarly, the lower end of the limiting groove plate 2143 bent upwards to form a folded plate. In this embodiment, by providing folded plates on the limiting groove plate 2143, the contact area with the limiting wheel can be increased, preventing the sharp end face of the limiting groove plate 2143 from cutting the limiting wheel and causing damage to it.
[0122] like Figures 1-4 As shown in the illustration, this application also discloses a cable tray assembly 200, which includes a cable tray unit and forms a cable tray mounting area between two target mounting bodies. That is, the gap between the two target mounting bodies is the cable tray mounting area. For ease of understanding, this will be described using a photovoltaic module group 100 as an example where both target mounting bodies are photovoltaic module groups 100.
[0123] Installing the cable tray assembly 200 in the cable tray installation area can fill the missing robot walking path in the gap, enabling the photovoltaic cleaning robot to clean the entire photovoltaic module column through different photovoltaic module groups 100, thus improving the application range of the photovoltaic cleaning robot.
[0124] In this embodiment, cable tray units are arranged at both ends of the cable tray installation area. That is, the cable tray assembly 200 is composed of two symmetrically arranged cable tray units. The two cable tray units are respectively installed on the upper and lower sides of the photovoltaic module group 100, so that the cable tray unit 210 is as close as possible to the upper and lower side frames of the photovoltaic module group 100 on the same straight line.
[0125] The cable tray unit includes a cable tray unit 210 and a rotating arm 220. The cable tray unit 210 is the same as disclosed in the above embodiment. Two first cable tray bodies 211 located at the ends are each connected to a rotating arm 220 via a universal joint 240, meaning the first cable tray body 211, universal joint 240, and rotating arm 220 are arranged in a one-to-one correspondence. The first end of the rotating arm 220 is connected to the first cable tray body 211 via the universal joint 240, and the second end of the rotating arm 220 is hinged to the photovoltaic module assembly 100.
[0126] The cable tray assembly 200 disclosed in this application adds a rotating arm 220 to the cable tray unit 210, that is, the cable tray unit 210 is indirectly connected to the photovoltaic module group 100 through the rotating arm 220. Since the cable tray assembly 200 disclosed in this application has the aforementioned cable tray unit 210, it also possesses all the technical effects of the aforementioned cable tray unit 210, which will not be repeated here.
[0127] The rotating arm 220 is hinged to the photovoltaic module group 100 via a pin, allowing the rotating arm 220 to rotate freely around the pin connection point at a specific angle. The bridge unit 210 adopts a folding structure with mutual sliding engagement. When there is a difference in the rotation angle of the photovoltaic module groups 100 on both sides, the rotating arm 220 rotates accordingly, and the bridge unit 210 extends for adjustment. In this embodiment, by providing the rotating arm 220, a wider range of applicable angle deviations can be achieved compared to providing only the bridge unit 210.
[0128] Furthermore, the rotating arm 220 can be connected to the photovoltaic module group 100 via the support beam 230. Specifically, support beams 230 are provided on both sides of the photovoltaic module group 100 in the cable tray installation area. The support beams 230 can be fixed to the purlins 110 of the photovoltaic module group 100 by fasteners, and the second end of the rotating arm 220 is hinged to the support beam 230.
[0129] It should be noted that two cable tray units can share the same support beam 230. For example, the rotating arms 220 on the same side of the two cable tray units can be hinged to the same support beam 230. That is, since the two cable tray units have a total of four rotating arms 220, only two support beams 230 need to be installed.
[0130] When the photovoltaic module groups 100 on both sides rotate at different angles, the photovoltaic module group 100 with the larger upward rotation angle will cause its fixed support beam 230 to swing upward. This support beam 230, in turn, pushes the rotating arm 220 hinged to it to swing upward. At this time, the support beam 230 and the rotating arm 220 hinged to it do not rotate relative to the photovoltaic module group 100. To accommodate the different rotation angles of the photovoltaic module groups 100 on both sides, the cable tray unit 210 will first unfold and lengthen. When the cable tray unit 210 is stretched to its limit, the rotating arm 220 is raised to further compensate for the increased angle deviation on both sides.
[0131] like Figures 6-8 As shown, in this embodiment, the support beam 230 includes a bottom wall 231 and two side walls 232 located on both sides of the bottom wall 231. The bottom wall 231 and the two side walls 232 form an open groove structure. The rotating arm 220 is hinged within the support beam 230 and can swing out from the open side of the support beam 230. When the angles of the photovoltaic module groups 100 on both sides are the same, the panels of the photovoltaic module groups 100 on both sides are located in the same plane, and at this time, the rotating arms 220 are all embedded in their respective corresponding support beams 230. The groove structure of the support beam 230 not only provides an installation base for the rotating arm 220, but also hides the rotating arm 220 within its groove, thus protecting the rotating arm 220.
[0132] The side wall 232 of the support beam can be perpendicular to the bottom wall 231 of the support beam, or it can be at other angles. If the side wall 232 of the support beam is perpendicular to the bottom wall 231 of the support beam, the rotating arm 220 may get stuck when it returns to its original position (returning to its original position means that the rotating arm 220 is inserted into the support beam 230), and the bristles of the cleaning brush of the photovoltaic cleaning robot may get stuck in the gap between the rotating arm 220 and the side wall 232 of the support beam.
[0133] Based on this, in a specific embodiment of this application, the distance between the two sidewalls 232 of the support beam 230 gradually increases from the bottom wall side to the opening side, making the support beam 230 have a flared structure, that is, the opening side has a larger width, and the sidewalls 232 of the support beam gradually slope outward from the bottom wall to the opening direction. In this embodiment, the outward slope design of the sidewalls 232 of the support beam makes the opening side of the support beam 230 wider, effectively avoiding the jamming problem that may occur when the rotating arm 220 returns to its position. In addition, the gap between the opening side of the support beam 230 and the rotating arm 220 is also larger, which can avoid the risk of brush bristles getting caught in the gap between the rotating arm 220 and the support beam 230.
[0134] Furthermore, the end of the support beam sidewall 232 away from the support beam bottom wall 231 can be bent outward with a folded plate portion 2321. In this embodiment, by bending the folded plate portion 2321 at the top of the support beam sidewall 232, it is possible to prevent the rotating arm 220 from colliding with the sharp top of the support beam sidewall 232 when it returns to its original position, thus preventing damage to the rotating arm 220. By providing the folded plate portion 2321, this embodiment makes the top of the support beam sidewall 232 relatively flat, making it easier to return the rotating arm 220 to its original position and preventing the risk of damage due to collision.
[0135] When a photovoltaic power station is located in a dusty environment such as a desert, sand and gravel will inevitably accumulate on the support beam 230 of the open slot structure. After the sand and gravel accumulate on the bottom wall 231 of the support beam, it will affect the return angle of the rotating arm 220, causing the rotating arm 220 to be unable to return to its original position completely and resulting in tilting.
[0136] Based on this, in one specific embodiment of this application, a sand discharge hole 2312 is provided on the bottom wall 231 of the support beam. Sand and gravel can smoothly drain out through the sand discharge hole 2312 under the action of gravity, fundamentally preventing the rotating arm 220 from tilting back when returning to its position due to sand and gravel accumulation, and further ensuring the stability of equipment operation. The sand discharge hole 2312 can be any shape, such as an oblong hole, a circular hole, or a polygonal hole. Multiple sand discharge holes 2312 can be arranged at intervals along the installation path of the rotating arm 220 to improve the sand and gravel discharge efficiency.
[0137] The bottom wall 231 of the support beam is also provided with fixing holes 2311, which can be used to pass fasteners through to fix the support beam 230 to the photovoltaic module group 100. Since the support beam 230 needs to support two rotating arms 220, in order to improve the installation stability of the support beam 230, multiple fixing holes 2311 can be provided on the bottom wall 231 of the support beam to fix the support beam 230 at multiple positions along its length.
[0138] For example, the fixing holes 2311 in the middle region of the support beam 230 can be used to fix it to the purlins 110 of the photovoltaic module group 100; the fixing holes 2311 in the end region of the support beam 230 can be fixed to the frame of the photovoltaic module group 100 through other adapters. In this embodiment, by fixing the support beam 230 at multiple locations such as the middle and end regions, the installation stability of the support beam 230 can be improved, thereby ensuring reliable support for the rotating arm 220 and the bridge frame unit 210. It should be noted that the number of fixing holes 2311 in the middle and end regions of the support beam 230 is not limited to one; multiple fixing holes 2311 can be provided in the middle or end regions as needed.
[0139] like Figure 9 As shown, in this embodiment, one of the universal joints 240 connected to the two first cable tray bodies 211 can be a first universal joint, and the other can be a second universal joint; alternatively, both universal joints 240 connected to the two first cable tray bodies 211 can be first universal joints or both can be second universal joints. Both the first and second universal joints may include a first rotating part 241 and a second rotating part 242. The second universal joint has a greater degree of freedom than the first universal joint.
[0140] The first rotating part 241 and the second rotating part 242 of the first universal joint are fixedly connected, and the first rotating part 241 and the second rotating part 242 of the second universal joint are rotatably connected through the rotating shaft 243, so that both the first rotating part 241 and the second rotating part 242 can rotate along the rotating shaft 243, thereby causing the first rotating part 241 and the second rotating part 242 to rotate relative to each other.
[0141] The first rotating part 241 is hinged to the first bridge frame body 211 via a first hinge shaft, and the second rotating part 242 is hinged to the rotating arm 220 via a second hinge shaft. Both the first and second hinge shafts are perpendicular to the rotating shaft 243. Under the connection of the universal joint 240, the first bridge frame body 211 and the rotating arm 220 can have rotational degrees of freedom in multiple directions.
[0142] In one specific embodiment of this application, both the first rotating part 241 and the second rotating part 242 are U-shaped groove structures. The length dimensions of the first rotating part 241 and the second rotating part 242 can be designed to be different. For example, the groove depth of the first rotating part 241 is greater than the groove depth of the second rotating part 242. During equipment operation, the relative rotation angle between the first bridge body 211 and the first rotating part 241 is larger than the relative rotation angle between the second rotating part 242 and the rotating arm 220. Therefore, designing the groove depth of the first rotating part 241 to be greater than the groove depth of the second rotating part 242 can avoid interference between the first rotating part 241 and the first bridge body 211.
[0143] Since the first rotating part 241 and the second rotating part 242 will rotate relative to each other according to the angular deviation of the photovoltaic module group 100 on both sides, the joint of the first rotating part 241 and the second rotating part 242 will present different heights due to the relative rotation of the first rotating part 241 and the second rotating part 242.
[0144] In this embodiment, the groove depth of the first rotating part 241 is greater than the groove depth of the second rotating part 242, that is, the length of the first rotating part 241 is greater than the length of the second rotating part 242. Since the first rotating part 241, which is hinged to the first bridge frame 211, is longer, it provides sufficient support width for the walking wheels of the photovoltaic cleaning robot. This can minimize the contact between the walking wheels of the photovoltaic cleaning robot and the joint between the first rotating part 241 and the second rotating part 242, effectively preventing the walking wheels of the photovoltaic cleaning robot from bumping into each other when passing through the bridge frame unit 210, thereby improving the stability of equipment operation and extending the service life of the walking wheels.
[0145] like Figure 1As shown in a specific embodiment of this application, the first bridge frame 211 is located on the outer side of the end of the rotating arm 220. When the angles of the photovoltaic module groups 100 on both sides are the same, the first bridge frame 211 is located on the outer side of the end of the rotating arm 220, so that there is a gap between the end of the rotating arm 220 and the first bridge frame 211, which is filled by the universal joint 240. When the angles of the photovoltaic module groups 100 on both sides are the same, the arrangement direction of the first rotating part 241 and the second rotating part 242 is perpendicular to the first bridge frame 211 (i.e., the arrangement direction of the first rotating part 241 and the second rotating part 242 is vertical), so that under the action of gravity, the universal joint 240 can hang down naturally, and compared with the horizontal arrangement direction of the first rotating part 241 and the second rotating part 242, it will not deflect due to gravity.
[0146] like Figure 10 As shown, the extension line of the first cable tray 211 can also intersect with the rotating arm 220, so that the arrangement direction of the first rotating part 241 and the second rotating part 242 is on the same straight line as the first cable tray 211. This embodiment does not limit the angular relationship between the universal joint 240 and the first cable tray 211.
[0147] This application also discloses a photovoltaic power station, which includes at least one column of photovoltaic modules. The photovoltaic module column includes at least two photovoltaic module groups 100 arranged sequentially at intervals, and each photovoltaic module group 100 is equipped with an independent tracking system. In the same photovoltaic module column, any two adjacent photovoltaic module groups 100 are connected by a bridge frame assembly 200, and the photovoltaic module groups 100 and the parking positions are also connected by a bridge frame assembly 200. The bridge frame assembly 200 is the bridge frame assembly 200 disclosed in the above embodiment.
[0148] The photovoltaic power station disclosed in this application has the above-mentioned bridge frame component 200, and therefore has all the technical effects of the bridge frame component 200, which will not be repeated here.
[0149] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.
[0150] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0151] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0152] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A single cable tray unit, characterized in that, The bridge frame unit includes a first bridge frame body (211) and a second bridge frame body (212). There are at least two first bridge frame bodies (211), and the two first bridge frame bodies (211) located at the ends are used to connect to the target installation bodies on both sides respectively. At least one of the target installation bodies on both sides is a photovoltaic module group (100). Each of the first cable tray bodies (211) is located on the same side of the second cable tray body (212), and any two adjacent first cable tray bodies (211) are connected through the second cable tray body (212). At least one of the two first cable tray bodies (211) connected to the second cable tray body (212) is slidably connected to the second cable tray body (212).
2. The cable tray unit as described in claim 1, characterized in that, One of the first cable tray body (211) and the second cable tray body (212) is provided with a first sliding part, and the other is provided with a second sliding part. The first sliding part and the second sliding part slide together in a first direction and form a limit along a second direction. The first direction is perpendicular to the second direction.
3. The cable tray unit as described in claim 2, characterized in that, One of the first sliding part and the second sliding part is a groove (2121), and the other is a sliding part (213) that slides in cooperation with the groove (2121). The groove (2121) extends along the first direction.
4. The cable tray unit as described in claim 3, characterized in that, The sliding part (213) includes a sliding pin and / or a sliding block.
5. The cable tray unit as described in claim 1, characterized in that, Each of the first bridge frame bodies (211) is located on the same straight line; And / or, Each of the second bridge frame bodies (212) is located on the same straight line.
6. The cable tray unit as described in claim 1, characterized in that, The first bridge frame body (211) is a tubular structural component or a plate structural component; And / or, The second bridge frame (212) is a tubular or plate-shaped structural component.
7. The cable tray unit as described in claim 6, characterized in that, The first bridge body (211) and / or the second bridge body (212) are polygonal tubes, and the first bridge body (211) and / or the second bridge body (212) have chamfered edges at least adjacent to the corners of the walking wheels and limit wheels of the photovoltaic cleaning robot.
8. The cable tray unit as described in any one of claims 1-7, characterized in that, The second cable tray (212) is disposed on the target side of the first cable tray (211); or, The second cable tray body (212) is disposed on at least one side of the first cable tray body (211) other than the target side. The target side of the first cable tray body (211) is provided with a shielding member (214), which can shield the gap between any two adjacent first cable tray bodies (211). The target side of the first bridge frame (211) is the side facing the limiting wheel of the photovoltaic cleaning robot.
9. The cable tray unit as described in claim 8, characterized in that, The shielding member (214) is one and is fixed on one of the first cable tray bodies (211), and slides in cooperation with the other first cable tray bodies (211); or, The shielding member (214) is one, and it is slidably engaged with each of the first bridge frame bodies (211); or, Any two adjacent first cable tray bodies (211) are connected by the shielding member (214), and at least one of the two first cable tray bodies (211) connected to the shielding member (214) is slidably connected to the shielding member (214).
10. The cable tray unit as described in claim 8, characterized in that, The shielding member (214) has a first guide surface (2142) at both ends. Along the direction from the end of the shielding member (214) to the middle, the distance from the first guide surface (2142) to the first bridge body (211) gradually increases. And / or, The two ends of the second bridge body (212) are disposed on the second guide surface (2122). Along the direction from the end of the second bridge body (212) to the middle, the distance from the second guide surface (2122) to the first bridge body (211) gradually increases.
11. The cable tray unit as described in claim 8, characterized in that, The first cable tray body (211) is provided with a first sliding part, the second cable tray body (212) is provided with a second sliding part, and the shielding member (214) is provided with a third sliding part (2141). The first sliding part and the second sliding part are in sliding engagement; The first sliding part and the third sliding part (2141) slide in cooperation.
12. A cable tray assembly, characterized in that, The system includes cable tray units, and a cable tray mounting area is formed between the two target mounting bodies, with the cable tray units arranged at both ends of the cable tray mounting area. The cable tray unit includes a cable tray unit (210) and a rotating arm (220), wherein the cable tray unit (210) is the cable tray unit (210) as described in any one of claims 1-11. The two first cable tray bodies (211) located at the ends are connected to the rotating arm (220) by universal joint (240). The first end of the rotating arm (220) is connected to the first cable tray body (211) by the universal joint (240), and the second end of the rotating arm (220) is used to hinge to the target mounting body.
13. The cable tray assembly as claimed in claim 12, characterized in that, The rotating arm (220) is connected to the target mounting body through a support beam (230), and the support beam (230) is provided on the target mounting body on both sides of the cable tray mounting area. The second end of the rotating arm (220) is hinged to the support beam (230).
14. The cable tray assembly as claimed in claim 13, characterized in that, The support beam (230) includes a bottom wall (231) and side walls (232) located on both sides of the bottom wall (231). The bottom wall (231) of the support beam and the two side walls (232) of the support beam form an open groove structure. The rotating arm (220) is hinged inside the support beam (230) and can swing out from the open side of the support beam (230).
15. The cable tray assembly as claimed in claim 14, characterized in that, In the direction from the bottom wall side of the support beam (230) to the opening side, the distance between the two support beam sidewalls (232) gradually increases; And / or, The side wall (232) of the support beam is bent outward at the end away from the bottom wall (231) of the support beam, forming a folded plate (2321).
16. The cable tray assembly as claimed in claim 14, characterized in that, The bottom wall (231) of the support beam is provided with a fixing hole (2311) and / or a sand drop hole (2312).
17. The cable tray assembly as claimed in claim 12, characterized in that, One of the universal joints (240) connected to the two first cable tray bodies (211) is the first universal joint and the other is the second universal joint; or, both of the universal joints (240) connected to the two first cable tray bodies (211) are either the first universal joint or the second universal joint. Both the first universal joint and the second universal joint include a first rotating part (241) and a second rotating part (242). The first rotating part (241) and the second rotating part (242) of the first universal joint are fixedly connected, and the first rotating part (241) and the second rotating part (242) of the second universal joint are rotatably connected by a rotating shaft (243). The first rotating part (241) is hinged to the first bridge body (211) via a first hinge axis, and the second rotating part (242) is hinged to the rotating arm (220) via a second hinge axis. Both the first hinge axis and the second hinge axis are perpendicular to the rotating shaft (243).
18. The cable tray assembly as claimed in claim 17, characterized in that, Both the first rotating part (241) and the second rotating part (242) are U-shaped groove structures, and the groove depth of the first rotating part (241) is greater than the groove depth of the second rotating part (242).
19. The cable tray assembly as claimed in claim 12, characterized in that, The first bridge frame body (211) is located on the outer side of the end of the rotating arm (220); or, The extension line of the first bridge frame (211) intersects with the rotating arm (220).
20. A photovoltaic power station, characterized in that, It includes at least one column of photovoltaic modules, the column of photovoltaic modules including at least two photovoltaic module groups (100) arranged at intervals in sequence, each of the photovoltaic module groups (100) being equipped with an independent tracking system; In the same photovoltaic module column, any two adjacent photovoltaic module groups (100) are connected by a bridge assembly (200), and / or, the photovoltaic module group (100) and the parking position are connected by a bridge assembly (200), the bridge assembly (200) being the bridge assembly (200) as described in any one of claims 12-19.