Lapping mechanism of photovoltaic module

Abstract

The utility model aims to provide a lap joint mechanism of photovoltaic modules, the lap joint mechanism of the photovoltaic modules is used for forming a lap joint path between two adjacent groups of photovoltaic modules, the lap joint mechanism of the photovoltaic modules comprises a lap joint part and a fixing part, and the two ends of the lap joint part in the length direction are respectively fixed with the two adjacent groups of photovoltaic modules through the fixing part; a lap joint path is formed on the upper surface of the lap joint part, protruding parts are arranged on the two sides of the lap joint part in the width direction respectively, the protruding parts protrude out of the upper surface of the lap joint part, and the protruding parts are arranged in the length direction of the lap joint part. According to the lap joint mechanism of the photovoltaic module, the stability of the robot in the process of moving to the next photovoltaic module along the lap joint mechanism can be guaranteed, and the situation that the robot laterally slides and even falls off is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic equipment, and in particular to a splicing mechanism for photovoltaic modules. Background Art

[0002] A photovoltaic power station includes multiple groups of photovoltaic modules, each of which includes multiple photovoltaic panels arranged in parallel. When a robot is used to clean the photovoltaic modules, a path needs to be built between adjacent photovoltaic modules so that the robot can move to each photovoltaic module through the path, thereby cleaning all the photovoltaic panels.

[0003] In the prior art, a path is usually built between two adjacent groups of photovoltaic modules using steel plates. When a cleaning robot passes through the path, it is easy to slip due to the inclination of the path surface and other reasons, and the robot may even fall. How to avoid this situation and ensure that the robot can move stably between different photovoltaic modules during the cleaning process to ensure the cleaning effect is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] The purpose of the present application is to provide a photovoltaic module overlap mechanism, which can ensure the stability of a robot during the process of moving along the overlap mechanism to the next photovoltaic module, and prevent the robot from slipping or even falling.

[0005] In order to solve the above-mentioned technical problems, the present application provides a overlapping mechanism of a photovoltaic component, which is used to form an overlapping path between two adjacent groups of photovoltaic components. The overlapping mechanism of the photovoltaic component includes an overlapping portion and a fixing portion, and the two ends of the overlapping portion in the length direction are respectively fixed to the two adjacent groups of photovoltaic components by the fixing portions; the upper surface of the overlapping portion forms the overlapping path, and the two side portions of the overlapping portion in the width direction are respectively provided with raised portions, the raised portions protrude from the upper surface of the overlapping portion, and the raised portions are arranged along the length direction of the overlapping portion.

[0006] When the robot moves along the overlapping path, the raised parts limit the tracks of the robot from both sides to prevent the tracks from sliding sideways on the surface of the overlapping path, thereby ensuring the movement stability of the robot between the two groups of photovoltaic panels and thus ensuring the cleaning effect.

[0007] At the same time, due to the provision of the raised portion, the overall structural strength of the overlapping portion can be enhanced, further enhancing the stability of the path and the stability of the robot movement, and the operator can walk on the overlapping path to ensure safety.

[0008] Optionally, the lap joint includes two lap plates and two connecting plates, both ends of each lap plate are respectively fixed to the two connecting plates, the two connecting plates are respectively fixed to the edges of two adjacent groups of photovoltaic components through the fixing parts, the two lap plates are arranged side by side and spaced apart, and a hollow area is formed between the two lap plates and the two connecting plates.

[0009] Optionally, the protrusions include a first protrusion provided on the lap plate and a second protrusion provided on the connecting plate, and the first protrusions are provided on both sides of the lap plate in the width direction.

[0010] Optionally, the first protrusion is a folding structure provided on the lap plate, and the second protrusion is a folding structure provided on the connecting plate.

[0011] Optionally, the cross-sections of the first protrusion and the second protrusion are both V-shaped structures, and the opening angles and opening directions of the V-shaped structures of the first protrusion and the second protrusion are the same.

[0012] Optionally, the end of the lap plate is overlapped on the top of the connecting plate and fixed, and when the lap plate and the connecting plate are fixed, the top of the second protrusion can be inserted into the opening of the V-shaped structure of the first protrusion.

[0013] Optionally, the lap plate is a glass fiber reinforced plastic plate.

[0014] Optionally, the connecting plate is further provided with a positioning structure, and the positioning structure is located between the two overlapping plates.

[0015] Optionally, the lap plate is provided with a first mounting hole, and the connecting plate is provided with a second mounting hole. The lap plate and the connecting plate are fixed by fasteners passing through the first mounting hole and the second mounting hole. At least one of the first mounting hole and the second mounting hole is a first strip hole, and the length direction of the first strip hole is parallel to the length direction of the lap plate.

[0016] Optionally, the connecting plate is provided with a third mounting hole, and the fixing part is provided with a fourth mounting hole. The connecting plate and the fixing part are fixed by fasteners passing through the third mounting hole and the fourth mounting hole. At least one of the third mounting hole and the fourth mounting hole is a second strip hole, and the length direction of the second strip hole is perpendicular to the length direction of the lap plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the photovoltaic assembly overlap mechanism provided in the embodiment of the present application in the installed state;

[0018] Figure 2yes Figure 1 A partial enlarged view of the

[0019] Figure 3 yes Figure 1 A schematic diagram of the structure of the overlapping mechanism;

[0020] Figure 4 yes Figure 3 A schematic diagram of the structure of the lap plate in FIG.

[0021] Figure 5 yes Figure 3 Structural diagram of the middle connecting plate;

[0022] Figure 6 It is a structural schematic diagram of the fixed part;

[0023] Figure 7 It is a deformation cloud diagram of a simulated overlap;

[0024] Figure 8 It is the deformation cloud diagram of the simulated second lap joint;

[0025] Fig. 9 It is the deformation cloud diagram of the simulated three-lap plate.

[0026] Attached Figure 1-Figure 9 In the figure, the reference numerals are described as follows:

[0027] 10 overlapping portion; 20 fixing portion, 201 first fixing member, 202 second fixing member, 203 fourth mounting hole; 30 photovoltaic module;

[0028] 1 raised portion, 11 a first raised portion, 12 a second raised portion;

[0029] 2 lap plate, 21 first mounting hole;

[0030] 3 connecting plate, 31 second mounting hole, 32 third mounting hole, 33 positioning structure;

[0031] 4 hollow areas. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] A photovoltaic power station includes multiple groups of photovoltaic components, each group of photovoltaic components includes multiple photovoltaic panels arranged in parallel. An embodiment of the present application provides a overlapping mechanism for photovoltaic components, which is used to form an overlapping path between two adjacent groups of photovoltaic components. When the photovoltaic components are cleaned by a robot, the robot can move to different photovoltaic components through the overlapping path, thereby achieving comprehensive cleaning of the photovoltaic panels of all photovoltaic components.

[0034] Specifically, as Figure 1 shown, the lapping mechanism includes a lapping part 10 and a fixing part 20. Among them, both ends of the lapping part 10 in the length direction are respectively fixed to adjacent two groups of photovoltaic modules 30 through the fixing part 20. A lapping path is formed on the upper surface of the lapping part 10, and the robot can move from one group of photovoltaic modules 30 to another group of photovoltaic modules 30 through the lapping path.

[0035] On both sides of the lapping part 10 in the width direction, there are respectively provided protruding parts 1. The protruding parts 1 protrude from the upper surface of the lapping part 10, and the protruding parts 1 are arranged along the length direction of the lapping part 10.

[0036] During the process of the robot moving along the lapping path, the tracks of the robot are limited from both sides by the protruding parts 1 respectively, preventing the tracks from slipping on the surface of the lapping path, ensuring the moving stability of the robot between the two groups of photovoltaic modules 30, and further ensuring the cleaning effect.

[0037] At the same time, due to the setting of the protruding parts 1, the overall structural strength of the lapping part 10 can also be enhanced, further enhancing the stability of the path and the moving stability of the robot. Moreover, the operator can walk on the lapping path to ensure safety.

[0038] As Figure 1 and Figure 3 shown, the lapping part 10 includes two lapping plates 2 and two connecting plates 3. Among them, both ends of each lapping plate 2 are respectively connected and fixed to the two connecting plates 3. Each connecting plate 3 is respectively fixed to the frame of the photovoltaic module 30 through the fixing part 20. The two lapping plates 2 are arranged in parallel at intervals, and a hollow area is formed between the two lapping plates 2 and the two connecting plates 3. That is to say, the lapping plates 2 and the connecting plates 3 form a frame structure similar to a Chinese character 'hui' (回), and a hollow area 4 is formed in the middle. In this way, the overall weight of the lapping part 10 can be simplified, thereby effectively reducing the cost.

[0039] The connecting plate 3 is directly fixed to the photovoltaic module 30 through the fixing part 20, and then the connecting plate 3 is fixed to the lapping plate 2. Compared with the scheme of fixing the whole lapping part 10 to the photovoltaic module 30, since the connecting plate 3 has a small size, it is convenient to fix the connecting plate 3 to the photovoltaic module 30 through the fixing part 20, effectively reducing the on-site construction difficulty.

[0040] On the upper surface of each lapping plate 2, a sub-path is respectively formed. The sub-paths of the two lapping plates 2 are arranged in parallel. The robot has two rows of tracks arranged in parallel. When the robot passes through this path, the two rows of tracks respectively walk along the two sub-paths.

[0041] Specifically, the raised portion 1 includes a first raised portion 11 and a second raised portion 12, wherein the first raised portion 11 is arranged on the lap plate 2, and the second raised portion 12 is arranged on the connecting plate 3, and the first raised portions 11 are respectively arranged on both sides of the lap plate 2 in the width direction, that is, each sub-path limits the corresponding track through two groups of first raised portions 11, further ensuring the stability of the robot moving along the lap path.

[0042] In this embodiment, the first protrusion 11 is a folding structure provided on the lap plate 2, and the second protrusion 12 is a folding structure provided on the connecting plate 3. That is to say, in this embodiment, all the protrusions 1 are formed by a folding structure. Of course, this embodiment does not limit the structure of the protrusion 1, and the upper surface of the lap portion 10 can also be provided with integrally formed or mutually fixed ridges to form the protrusion 1, and the protrusion 1 formed by folding can further simplify the overall structure and effectively reduce the overall weight.

[0043] The cross-section of the raised portion 1 is V-shaped. Specifically, the cross-sections of the first raised portion 11 and the second raised portion 12 are both V-shaped, and the openings of the V-shaped structures are arranged downward, that is, the plate is first folded upward and then folded downward to form a raised portion 1. In this way, the upper surface of the raised portion 1 can be ensured to be smooth, so that when the robot passes through the overlapping path, the cleaning components of the robot (such as a support, a brush, etc.) are prevented from being damaged by the action of the raised portion 1.

[0044] Among them, the plate parts include lap plates 2 and connecting plates 3 and structural parts of the lap plates 2 and connecting plates 3 before molding. Taking the structural parts of the lap plates 2 before molding as an example, the two sides of the width direction of an entire plate part are folded to form a first protrusion 11, and then the plate part is processed into multiple lap plates 2 of required sizes. This can simplify the molding process of each lap plate 2 and reduce costs.

[0045] Of course, in this embodiment, there is no restriction on the cross-sectional shape of the protrusion 1, such as a U-shaped structure, a circular structure, etc. When the cross-sectional shape of the protrusion 1 is set to a V-shaped structure, the protrusion 1 can be formed by folding twice in different directions, which can simplify the folding operation. Of course, there is no restriction on the number of protrusions 1, such as when two or more groups of protrusions 1 are provided on the same side of the upper surface of the lap joint 10, they can be formed by folding multiple times, so that each protrusion is arranged in parallel or at intervals, forming a W-shaped, wavy structure, etc.

[0046] In this embodiment, all the protrusions 1 have the same folding angle and folding direction, so that the materials can be stacked and arranged, effectively reducing the storage and transportation space, while ensuring the stacking stability. Specifically, there is no restriction on the folding angle, such as 45°, 60°, etc. For example, when the folding angle is 45°, the edge of the plate is first bent 45° to one side, and then bent 45° to the other side to form a V-shaped protrusion 1. When installing, the protrusion 1 is facing upward, that is, the opening of the V-shaped structure is facing downward.

[0047] When the opening of the V-shaped structure of the raised portion 1 is set downward, a groove structure can be formed on the lower surface of the plate. During transportation and storage, the plates are stacked and the raised portion 1 of the lower plate can extend into the groove structure of the upper plate. In this way, the overall space occupied in the height direction can be reduced. At the same time, the raised portion 1 can also be used to limit the position of each plate to prevent displacement, thereby ensuring stability during transportation and storage.

[0048] The end of the lap plate 2 can be overlapped on the upper surface of the connecting plate 3 and fixed by fasteners. When the lap plate 2 and the connecting plate 3 are in an overlapped and fixed state, the second protrusion 12 can be inserted into the groove structure corresponding to the V-shaped structure of the first protrusion 11, that is, the first protrusion 11 and the second protrusion 12 are also in an overlapped state, so that the structural strength can be ensured at the connection between the lap plate 2 and the connecting plate 3. At the same time, the first protrusion 11 and the second protrusion 12 can also realize the installation positioning between the lap plate 2 and the connecting plate 3, which is convenient for improving the installation efficiency.

[0049] Of course, in this embodiment, there is no limitation on the materials of the lap plate 2 and the connection plate 3, and they may be natural fiber plates, synthetic fiber plates, metal plates, etc.

[0050] Preferably, the lap plate 2 is set as a fiberglass plate. Since the spacing between two adjacent groups of photovoltaic components 30 is different, the length of the lap plate 2 can be cut on site to meet actual needs. Since the material of the lap plate 2 is fiberglass, it is convenient to cut on site, and since the density of fiberglass is much lower than that of steel, the material weight is greatly reduced and the construction difficulty is reduced.

[0051] The connecting plate 3 can be directly fixed to the frame of the photovoltaic panel through the fixing part 20, and there is no requirement for its material. The connecting plate 3 can be made of galvanized magnesium aluminum steel plate. In this way, the lap joint mechanism has good anti-corrosion performance and light overall weight, which is convenient for transportation and can reduce the difficulty of construction operation, thereby reducing costs. Compared with the solution in the prior art that directly overlaps two groups of photovoltaic modules 30 through steel plates, the weight of the lap joint mechanism provided in this embodiment can be reduced by about 70%.

[0052] That is, the substrate, the connecting plate 3 and the fixing part 20 are transported to the site, wherein the upper surface of the substrate already has the above-mentioned protrusion 1, and then the substrate is cut on site according to the spacing between the photovoltaic modules 30 to form the overlapping plate 2 of the required length.

[0053] Of course, after the photovoltaic assembly 30 is installed on site, the required lap plate 2 can be formed by actual measurement and processing, and then the processed lap plate 2 can be transported to the site for installation. In this case, there is no restriction on the material of the lap plate 2. When the lap plate 2 is processed on site to meet the length requirement, the installation operation can be simplified, and the installation efficiency can be improved, the operation process can be simplified, thereby reducing manpower and material resources and reducing costs.

[0054] like Figure 3 and Figure 5 As shown, the connecting plate 3 is also provided with a positioning structure 33, and the positioning structure 33 is located between the two overlapping plates 2. The positioning structure 33 can be a hole structure, a groove structure or a protrusion, etc., and a MARK point is formed by the positioning structure 33, so that when the robot establishes a cleaning map, it determines the straight line between the two points by identifying the MARK point, and then determines the cleaning path of the robot, thereby minimizing the path deviation caused in the process of establishing the map and improving the positioning accuracy of the robot.

[0055] Of course, when determining the cleaning path of the robot, the raised portion 1 can also be used as an identification marker, which has good flexibility.

[0056] like Figure 4 and Figure 5 As shown, the lap plate 2 is provided with a first mounting hole 21. When the lap plate 2 is processed on site to a desired length, the first mounting hole 21 can be processed on site. The connecting plate 3 is provided with a second mounting hole 31. The lap plate 2 and the connecting plate 3 are fixed by fasteners passing through the first mounting hole 21 and the second mounting hole 31. At least one of the first mounting hole 21 and the second mounting hole 31 is a first strip hole, and the length direction of the first strip hole is parallel to the length direction of the lap plate 2. In this way, the processing error of the lap plate 2 and the measurement error of the spacing between two adjacent groups of photovoltaic modules 30 can be balanced to ensure smooth installation.

[0057] In this embodiment, preferably, the second mounting hole 31 is set as a second strip hole, and the first mounting hole 21 is set as a round hole, so as to facilitate on-site processing.

[0058] like Figure 5 and Figure 6As shown, the connecting plate 3 is provided with a third mounting hole 32, and the fixing part 20 is provided with a fourth mounting hole 203. The connecting plate 3 and the fixing part 20 are fixed by fasteners passing through the third mounting hole 32 and the fourth mounting hole 203. At least one of the third mounting hole 32 and the fourth mounting hole 203 is a second strip hole, and the length direction of the second strip hole is perpendicular to the length direction of the lap plate 2. Each connecting plate 3 can be provided with two third mounting holes 32 respectively, and fixed to the frame of the photovoltaic module 30 through two fixing parts 20. The spacing between the two third mounting holes 32 is constant. During on-site installation, it is inevitable that the fixing part 20 will be displaced within a small range when fixed to the frame of the photovoltaic module 30 due to the need to avoid interference with some structures. At this time, the setting of the second strip hole can flexibly realize the fixing of the connecting plate 3 to the photovoltaic module 30 through the fixing part 20.

[0059] In this embodiment, there is no limitation on the specific structure of the fixing portion 20, for example, the fixing portion 20 may be fixed to the frame by a clamping structure, or may be fixed to the frame by a snap-fit ​​structure, or may be fixed to the frame by a fastener. Figure 6 As shown, the fixing part 20 includes a first fixing member 201 and a second fixing member 202, wherein the first fixing member 201 and the second fixing member 202 are respectively provided with a fourth mounting hole 203. By sequentially passing through the third mounting hole 32 and the fourth mounting hole 203 of the first fixing member 201 and the second fixing member 202, the fixing part 20 and the connecting plate 3 can be fixed, and the first fixing member 201 and the second fixing member 202 can be clamped and fixed to the frame. The fixing part has a simple structure and is convenient to disassemble and assemble.

[0060] The construction operation of the lap joint mechanism of the photovoltaic module provided in this embodiment is relatively simple. Since the fixing part 20 is fixed to the frame, the installation does not need to rely on the roof substrate or other building materials (such as purlins, etc.), and it is directly overlapped on the frame of the photovoltaic module 30, which greatly reduces the requirements for the installation working environment. In addition, under actual working conditions, there are often engineering materials such as cable ducts between the photovoltaic modules 30. Since the lap joint mechanism is located near the upper surface of the photovoltaic module 30 panel as a whole, it can effectively avoid obstacles on the site. The lap joint mechanism can be directly built without additional processing, reducing the amount of on-site modification engineering.

[0061] Three sets of simulation experiments were conducted for the overlapping mechanism of the photovoltaic modules provided in this embodiment, with the spacing between the two sets of photovoltaic modules 30 being the same (all 1500 mm), and the material, thickness, and load conditions of the overlapping portion 10 being the same:

[0062] Experiment 1: The overlap portion 10 is a whole plate-like structure with a width of 800 mm. The two side edges of the overlap portion 10 in the width direction are folded upward by 90° to form a raised portion 1. The simulation results of the overlap portion 10 are shown in FIG. Figure 6As shown, the maximum deformation of the overlap portion 10 is 45.3 mm;

[0063] Experiment 2: The overlapped portion 10 is a whole plate-like structure with a width of 800 mm. The two side edges of the overlapped portion 10 in the width direction are folded twice at 45° to form a convex portion 1 with a V-shaped cross section. The simulation results of the overlapped portion 10 are shown in FIG. Figure 7 As shown, the maximum deformation of the overlap portion 10 is 38.4 mm;

[0064] Experiment 3: The overlapped portion 10 is Figure 3 As shown, the structure includes two lap plates 2 and two connecting plates 3, the overall width of the lap portion 10 is 800 mm, the width of a single lap plate 2 is 250 mm, and the two side edges of the lap plate 2 are folded twice by 45° to form a first raised portion 11 with a V-shaped cross section. The simulation results of the lap plate 2 are shown in FIG. Figure 8 As shown, the maximum deformation of the lap plate 2 is 11.15 mm.

[0065] By comparing Experiment 1 with Experiment 2, it can be seen that the raised portion 1 with a V-shaped cross-section formed by two 45° folding can reduce the deformation of the lap joint 10 by about 15% compared with the raised portion 1 formed by 90° flanging. By comparing Experiment 2 with Experiment 3, it can be seen that when the lap joint 10 is set to a structure including two lap plates 2 and two connecting plates 3, and each lap plate 2 is provided with a first raised portion 11 on both sides in the width direction, the deformation of a single lap plate 2 can be further reduced.

[0066] That is, the overlapping portion 10 is set as follows Figure 3 As shown, the structure includes two lap plates 2 and two connecting plates 3, and the two side edges of the lap plates 2 are folded twice by 45 degrees to form a first raised portion 11 with a V-shaped cross-section. While reducing the overall weight and cost, it can also effectively reduce the deformation of the lap portion 10.

[0067] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A photovoltaic module overlap mechanism, used to form an overlap path between two adjacent groups of photovoltaic modules (30), characterized in that: The photovoltaic assembly overlap mechanism comprises an overlap portion (10) and a fixing portion (20), and both ends of the overlap portion (10) in the length direction are respectively fixed to two adjacent groups of photovoltaic assemblies (30) via the fixing portion (20); The upper surface of the overlapping portion (10) forms the overlapping path, and protrusions (1) are respectively provided on both sides of the overlapping portion (10) in the width direction, the protrusions (1) protrude from the upper surface of the overlapping portion (10), and the protrusions (1) are arranged along the length direction of the overlapping portion (10).

2. The photovoltaic module overlapping mechanism according to claim 1, characterized in that: The lap joint (10) comprises two lap joint plates (2) and two connecting plates (3), the two ends of each lap joint plate (2) being respectively fixed to the two connecting plates (3), the two connecting plates (3) being respectively fixed to the edges of two adjacent groups of photovoltaic modules (30) via the fixing portion (20), the two lap joint plates (2) being arranged in parallel and spaced apart, and a hollow area (4) being formed between the two lap joint plates (2) and the two connecting plates (3).

3. The photovoltaic module overlapping mechanism according to claim 2, characterized in that: The protruding portion (1) comprises a first protruding portion (11) provided on the lap plate (2) and a second protruding portion (12) provided on the connecting plate (3), and the first protruding portion (11) is provided on both sides of the lap plate (2) in a width direction.

4. The photovoltaic module overlapping mechanism according to claim 3, characterized in that: The first protruding portion (11) is a folding structure provided on the overlapping plate (2), and the second protruding portion (12) is a folding structure provided on the connecting plate (3).

5. The photovoltaic assembly splicing mechanism according to claim 4, characterized in that: The cross-sections of the first raised portion (11) and the second raised portion (12) are both V-shaped structures, and the opening angles and opening directions of the V-shaped structures of the first raised portion (11) and the second raised portion (12) are the same.

6. The photovoltaic assembly overlapping mechanism according to claim 5, characterized in that: The end of the lap plate (2) is overlapped and fixed on top of the connecting plate (3), and when the lap plate (2) and the connecting plate (3) are fixed, the top of the second protruding portion (12) can be inserted into the opening of the V-shaped structure of the first protruding portion (11).

7. The photovoltaic module splicing mechanism according to any one of claims 2 to 6, characterized in that: The overlapping plate (2) is a glass fiber reinforced plastic plate.

8. The photovoltaic module splicing mechanism according to any one of claims 2 to 6, characterized in that: The connecting plate (3) is further provided with a positioning structure (33), and the positioning structure (33) is located between the two overlapping plates (2).

9. The photovoltaic module splicing mechanism according to any one of claims 2 to 6, characterized in that: The lap plate (2) is provided with a first mounting hole (21), and the connecting plate (3) is provided with a second mounting hole (31). The lap plate (2) and the connecting plate (3) are fixed by fasteners passing through the first mounting hole (21) and the second mounting hole (31). At least one of the first mounting hole (21) and the second mounting hole (31) is a first strip hole, and the length direction of the first strip hole is parallel to the length direction of the lap plate (2).

10. The photovoltaic module splicing mechanism according to any one of claims 2 to 6, characterized in that: The connecting plate (3) is provided with a third mounting hole (32), and the fixing portion (20) is provided with a fourth mounting hole. The connecting plate (3) and the fixing portion (20) are fixed by means of a fastener passing through the third mounting hole (32) and the fourth mounting hole. At least one of the third mounting hole (32) and the fourth mounting hole is a second strip hole, and the length direction of the second strip hole is perpendicular to the length direction of the lap plate (2).

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