A photovoltaic panel connection structure

Abstract

The present invention relates to the technical field of photovoltaic panel cleaning equipment and its accessory devices, and specifically provides a photovoltaic panel connection structure. The photovoltaic panel connection structure includes a first connection part and a second connection part; the first end of the first connection part is fixedly connected to a first frame, the position of the first frame relative to the first photovoltaic panel remains unchanged, and the second end of the first connection part extends towards the second photovoltaic panel; the first end of the second connection part is hinged to a second frame, the position of the second frame relative to the second photovoltaic panel remains unchanged, and the second end of the second connection part overlaps with the first connection part. The present invention is particularly applicable to the connection between the aisles of a photovoltaic panel array with a light-tracking system. When there is an angular difference or height misalignment between the photovoltaic panels on both sides of the aisle, it can also achieve an effective connection of the aisle between the photovoltaic panels, facilitating the passage of a photovoltaic panel cleaning robot on the photovoltaic panel connection structure.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic panel cleaning equipment and its accessory devices, and more particularly, to a photovoltaic panel connection structure. Background Art

[0002] To achieve efficient cleaning of a photovoltaic panel array, generally a photovoltaic panel cleaning robot is used to clean the photovoltaic panel array currently. The photovoltaic panel cleaning robot walks on the surface of the photovoltaic panel while sweeping away dust and sand. However, there are gaps and aisles between photovoltaic panel arrays. If the robot is to walk from one photovoltaic panel array to an adjacent photovoltaic panel array, a connection structure must be provided between adjacent photovoltaic panels with gaps or aisles to allow the robot to pass through.

[0003] However, with the development of optoelectronic technology, the photovoltaic panel array has also been improved: a light-tracking system is generally provided for the photovoltaic panel array, that is, the photovoltaic panel rotates following the direction of light. Since each photovoltaic panel array rotates independently, there will be an angular difference and a height drop between adjacent photovoltaic panel arrays. Existing photovoltaic panel connection structures cannot meet the aisle connection requirements between photovoltaic panel arrays with such a light-tracking system. Summary of the Invention

[0004] To solve at least one aspect of the above technical problems to a certain extent, the present invention provides a photovoltaic panel connection structure, including a first connection part and a second connection part; the first end of the first connection part is fixedly connected to a first frame, the position of the first frame relative to the first photovoltaic panel remains unchanged, and the second end of the first connection part extends towards the second photovoltaic panel; the first end of the second connection part is hinged to a second frame, the position of the second frame relative to the second photovoltaic panel remains unchanged, and the second end of the second connection part is lapped with the first connection part.

[0005] The connection structure of the present invention is particularly suitable for connecting the aisles between photovoltaic panel arrays with a light-tracking system. Since the first connection part and the second connection part are independent of each other, they can rotate respectively following the first photovoltaic panel or the second photovoltaic panel (there is an aisle between the first photovoltaic panel and the second photovoltaic panel). The first connection part is fixedly installed, and the second connection part is hingedly assembled. In this way, when there is an angular difference or a height misalignment between the first photovoltaic panel and the second photovoltaic panel, the second connection part can well overlap on the first connection part, thus forming an effective connection of the aisle between the first photovoltaic panel and the second photovoltaic panel, facilitating the passage of the photovoltaic panel cleaning robot on the photovoltaic panel connection structure. The present invention ingeniously solves the aisle connection problem between photovoltaic panel arrays with a light-tracking system through a very simple structure, and has high technical value and economic value.

[0006] Optionally, the sum of the lengths of the first connecting portion and the second connecting portion is greater than the maximum distance between the opposite edges of the first photovoltaic panel and the second photovoltaic panel.

[0007] Optionally, the second connecting portion includes a second bridge plate, and the second bridge plate is a structure that bulges upward. The second bridge plate having an upwardly bulging structure can be achieved by setting the second bridge plate as a curved surface with a certain curvature. The second bridge plate is provided with an upward bulge, so that when the second bridge plate is placed on the first connecting portion, there is preferably no excessive step between the first connecting portion and the second connecting portion. For example, if the height of the second photovoltaic panel is lower than that of the first photovoltaic panel, if the second bridge plate does not bulge upward, there will be a relatively steep uphill section from the second bridge plate to the first bridge plate, which is equivalent to increasing the obstacle-crossing requirement for the cleaning robot.

[0008] Optionally, a second vertical plate is provided on the outer edge of the second bridge plate, and the second vertical plate is bent downward relative to the second bridge plate. The second vertical plate and the second bridge plate form a bent structure, which can enhance the support strength of the second bridge plate.

[0009] Optionally, the second vertical plate is parallel to the side surface of the second photovoltaic panel. For a photovoltaic panel cleaning robot provided with hanging wheels, a vertical plate parallel to the side wall of the photovoltaic panel can provide a walking support surface equivalent to the side wall of the photovoltaic panel for the hanging wheels, preventing the photovoltaic panel cleaning robot from slipping off the photovoltaic panel.

[0010] Optionally, the first connecting portion includes a first bridge plate, and one end of the first bridge plate facing the second connecting portion is inclined downward. On the one hand, the end of the first bridge plate is inclined downward, facilitating the lapping of the second bridge plate; on the other hand, after the second bridge plate is lapped with the first bridge plate, since the lapping portion moves downward along with the end of the first bridge plate, it is avoided that there is an excessive step between the first bridge plate and the second bridge plate, which affects the passage of the photovoltaic panel cleaning robot.

[0011] Optionally, the width of the second bridge plate is greater than the width of the first bridge plate. This ensures that the second bridge plate and the second vertical plate connected to the second bridge plate respectively overlap outside the first bridge plate and the first vertical plate, avoiding the failure situation of lapping and jamming due to large differences in the positions of the two photovoltaic panels after rotation.

[0012] Optionally, a first vertical plate is provided on the outer edge of the first bridge plate, and the first vertical plate is bent downward relative to the first bridge plate. The first vertical plate and the first bridge plate form a bent structure, which can enhance the support strength of the first bridge plate.

[0013] Optionally, the first vertical plate is parallel to the side surface of the first photovoltaic panel. The first vertical plate is used to receive the second vertical plate, facilitating the passage of the hanging wheels of the photovoltaic panel cleaning robot and preventing the photovoltaic panel cleaning robot from slipping off the photovoltaic panel.

[0014] Optionally, the second bridge plate includes a hinge portion, a lapping portion, and at least one extension portion disposed between the hinge portion and the lapping portion. The hinge portion is used for hinging with the second frame, the lapping portion is used for overlapping on the first connecting portion, and the extension portion is bent with respect to both the hinge portion and the lapping portion. The structure with the hinge portion, at least one extension portion, and the lapping portion bent with respect to each other ensures that the second bridge plate has a certain arc as a whole (the bent portions of each section share the central angle corresponding to the arc); on the other hand, it ensures that the second connecting portion has a simple process, low cost, and is convenient to manufacture.

[0015] Optionally, one end of the lapping portion facing the first connecting portion is inclined downward. The function of the end of the lapping portion being inclined downward is basically the same as the principle of the end of the first bridge plate being inclined downward, which moves the contact portion between the first bridge plate and the second bridge plate downward, avoiding a large step after the first bridge plate and the second bridge plate overlap.

[0016] Optionally, a damping component is provided at the hinged portion between the second connecting portion and the second frame. Providing the damping component can, on the one hand, prevent strong collision between the second connecting portion and the first connecting portion and extend the service life of the components; on the other hand, the second connecting portion can be slowly lapped on the first connecting portion to ensure the lapping effect. Description of the Drawings

[0017] Figure 1 is the lapping state diagram of the photovoltaic panel connection structure according to the embodiment of the present invention;

[0018] Figure 2 is the enlarged view of the photovoltaic panel connection structure according to the embodiment of the present invention;

[0019] Figure 3 is the structural schematic diagram of the second connecting portion according to the embodiment of the present invention;

[0020] Figure 4 is Figure 3 the sectional view taken along the direction of A - A in

[0021] Figure 5 is the structural schematic diagram of the first connecting portion from the outer side view according to the embodiment of the present invention;

[0022] Figure 6 is the structural schematic diagram of the first connecting portion from another view according to the embodiment of the present invention;

[0023] Figure 7 is the outer side orthographic projection schematic diagram of the photovoltaic panel connection structure according to another embodiment of the present invention.

[0024] Description of the Reference Numerals:

[0025] 1 - First connecting part; 11 - First bridge plate; 111 - Receiving part; 112 - Fixing part; 2 - Second connecting part; 21 - Second bridge plate; 211 - Hinge part; 212 - Extension part; 213 - Overlapping part; 22 - Second vertical plate; 3 - First photovoltaic panel; 4 - Second photovoltaic panel; 5 - First frame; 6 - Second frame; 71 - First hinge assembly; 72 - Second hinge assembly. Detailed implementation mode

[0026] To make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0027] In addition, the directional indications mentioned in the embodiments of the present invention are explained as follows: Up and down refer to the upper and lower directions in the conventional sense after the connection structure is assembled with the photovoltaic panel array system in the normal use state. When this specific posture changes, the directional indication also changes accordingly. However, the up - and - down directions are broad concepts of up and down, and are not necessarily on the same straight line in the up - and - down direction. In this specification, the X - direction refers to the outer direction of the photovoltaic panel connection structure (or each component of the photovoltaic panel connection structure), and the Y - direction refers to the inner direction of the photovoltaic panel connection structure (or each component of the photovoltaic panel connection structure).

[0028] If there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0029] There is an aisle or gap between the first photovoltaic panel 3 and the second photovoltaic panel 4 in the accompanying drawings, which causes the photovoltaic panel cleaning robot not to be able to walk through the aisle or gap. Among them, the first photovoltaic panel 3 and the second photovoltaic panel 4 belong to two photovoltaic panel arrays, and each photovoltaic panel array has an independent light - tracking system. The light - tracking system can drive the photovoltaic panels in the same array to rotate. Therefore, the planes where the first photovoltaic panel 3 and the second photovoltaic panel 4 are located often have an angular difference due to their different rotation angles and / or there is a large height difference between the relative edges of the first photovoltaic panel 3 and the second photovoltaic panel 4. However, the existing connection structures cannot be applied to the connection between the photovoltaic panels or photovoltaic panel arrays on both sides of the aisle with independent light - tracking systems. The present invention can well solve this technical problem.

[0030] Such as Figure 1As shown in the figure, a photovoltaic panel connection structure according to an embodiment of the present invention includes a first connection portion 1 and a second connection portion 2. The first end of the first connection portion 1 is fixedly connected to the first frame 5, the first frame 5 is fixedly installed relative to the first photovoltaic panel 3, and the second end of the first connection portion 1 extends in the direction of the second photovoltaic panel 4; the first end of the second connection portion 2 is hinged to the second frame 6, the second frame 6 is fixedly installed relative to the second photovoltaic panel 4, and the second end of the second connection portion 2 overlaps with the first connection portion 1. The first end and the second end of the first connection portion 1 are opposite ends of the first connection portion 1. Similarly, the first end and the second end of the second connection portion 2 are opposite ends of the second connection portion 2.

[0031] Specifically, there can be various specific implementation manners in which the position of the first frame 5 relative to the first photovoltaic panel 3 remains unchanged and the position of the second frame 6 relative to the second photovoltaic panel 4 remains unchanged. By way of example, the first frame 5 is the frame of the first photovoltaic panel 3, and the second frame 6 is the frame of the second photovoltaic panel 4, then the first frame 5 rotates synchronously with the first photovoltaic panel 3, and the second frame 6 rotates synchronously with the second photovoltaic panel 4. By way of example, the first frame 5 is fixedly connected to the light-tracking system of the first photovoltaic panel 3 to ensure that the first frame 5 rotates synchronously with the first photovoltaic panel 3; the second frame 6 is fixedly connected to the light-tracking system of the second photovoltaic panel 4 to ensure that the second frame 6 rotates synchronously with the second photovoltaic panel 4, but it is necessary to ensure that the first frame 5 and the second frame 6 are respectively close to the relative edges of the first photovoltaic panel 3 and the second photovoltaic panel 4. By way of example, the first frame 5 and the second frame 6 are respectively installed on the rotating shafts of the light-tracking systems of the first photovoltaic panel 3 and the second photovoltaic panel 4. Those skilled in the art can design specific structures by themselves under the guidance of the present invention, which will not be elaborated herein.

[0032] The first end of the first connection portion 1 is fixedly connected to the first frame 5, and the second end of the first connection portion 1 extends in the direction of the second photovoltaic panel 4; the first end of the second connection portion 2 is hinged to the second frame 6, and the second end of the second connection portion 2 can be placed on the second end of the first connection portion 1 to form an overlapping state. Since the first connection portion 1 and the second connection portion 2 are independent of each other, they can respectively follow the rotation of the first photovoltaic panel or the second photovoltaic panel. When the photovoltaic panel rotates, the self-structure of the photovoltaic panel connection structure will not be damaged.

[0033] The sum of the lengths of the first connecting part 1 and the second connecting part 2 is greater than the maximum distance between the opposite edges of the first photovoltaic panel 3 and the second photovoltaic panel 4. And the first connecting part 1 and the second connecting part 2 are opposite to each other, that is, the line connecting the first connecting part 1 and the second connecting part 2 is parallel to the edge of the first photovoltaic panel 3 or the second photovoltaic panel 4 (the edge refers to the edge parallel to the width direction of the aisle between the first photovoltaic panel 3 and the second photovoltaic panel 4, which is different from the opposite edges of the first photovoltaic panel 1 and the second photovoltaic panel 2). That is to say, even when the first photovoltaic panel 3 and the second photovoltaic panel 4 rotate independently, resulting in the maximum distance between the opposite edges of the first photovoltaic panel 3 and the second photovoltaic panel 4 (the edges of the first photovoltaic panel 3 and the second photovoltaic panel 4 adjacent to the aisle), it can ensure that the second connecting part 2 overlaps on the first connecting part 1. The rotating shaft of the second connecting part 2 hinged to the second frame 6 is parallel to the edge of the second photovoltaic panel 4 in the aisle. Therefore, when the second connecting part 2 is hinged to the second frame 6, no matter what the angle difference and height difference between the first photovoltaic panel 3 and the second photovoltaic panel 4 are, the end of the second connecting part 2 can always overlap above the first connecting part 1 and is fixedly connected to the first connecting part 1, playing a good supporting role, so that the photovoltaic panel connection structure forms an effective connection channel in the aisle between the photovoltaic panels for the photovoltaic panel cleaning robot to walk. The present invention cleverly solves the aisle connection problem between the photovoltaic panel arrays with a light chasing system through a very simple structure, and has high technical value and economic value.

[0034] Generally, the photovoltaic panel cleaning robot includes upper traveling wheels and lower traveling wheels. Therefore, two sets of photovoltaic panel array connection structures are arranged on the aisle between the photovoltaic panels to respectively allow the upper and lower traveling wheels to pass through.

[0035] Such as Figure 2 、 Figure 3 shown, preferably, the second connecting part 2 includes a second bridge plate 21, and the second bridge plate 21 is used to carry the traveling wheels of the photovoltaic panel cleaning robot. The second bridge plate 21 is a structure that bulges upward, that is, the second bridge plate 21 is not a flat plate. For example, in the front projection view of the side surface of the second bridge plate 21 (the so-called side surface, see Figure 1 in which the X direction is the outer side surface direction of the second bridge plate 21 and the Y direction is the inner side surface direction of the second bridge plate 21), the second bridge plate 21 is a regular or irregular arc, and the irregular arc can also be a curved line formed by connecting several straight line segments. Among them, the central angle corresponding to the arc of the second bridge plate 21 is below the second bridge plate 21 to ensure that the second bridge plate 21 is a structure that bulges upward.

[0036] By providing an upward protrusion on the second bridge plate 21 of the second connecting portion 2, when the second bridge plate 21 is placed on the first connecting portion 1, the first connecting portion 1 and the second connecting portion 2 will not have a large step as much as possible. For example, if the height of the second photovoltaic panel 4 is lower than that of the first photovoltaic panel 3, if the second bridge plate 21 has no curvature, there will be a relatively steep uphill section from the second bridge plate 21 to the first bridge plate 11, which is equivalent to increasing the obstacle-crossing requirement for the cleaning robot.

[0037] As Figure 3 and Figure 4 shown, preferably, a second vertical plate 22 is provided at the outer edge of the second bridge plate 21 (for the concept of the outer side, see the X direction shown in Figure 1 ). The second vertical plate 22 is bent downward relative to the second bridge plate 21. Let the bending angle be α, then 90° ≤ α < 180°. The top of the second vertical plate 22 is fixedly connected or integrally formed with the outer edge of the second bridge plate 21. The second vertical plate 22 extends downward from the second bridge plate 21.

[0038] The second vertical plate 22 and the second bridge plate 21 form a bent structure, which can strengthen the supporting strength of the second bridge plate 21.

[0039] Preferably, the second vertical plate 22 is parallel to the side surface of the second photovoltaic panel 4. Alternatively, the included angle between the second vertical plate 22 and the second bridge plate is 90°. For a photovoltaic panel cleaning robot provided with hanging wheels, the hanging wheels travel along the side surface of the photovoltaic panel. When the photovoltaic panel cleaning robot passes through the passage between the photovoltaic panel arrays, the vertical plate parallel to the side wall of the photovoltaic panel can provide a walking support surface equivalent to the side surface of the photovoltaic panel for the hanging wheels, preventing the photovoltaic panel cleaning robot from slipping off the photovoltaic panel.

[0040] As Figure 5 and Figure 6 shown, the first connecting portion 1 includes a first bridge plate 11. The first bridge plate 11 includes a fixing portion 112 and a receiving portion 111. The fixing portion 112 is fixedly connected to the first frame 5, and the implementation manner of the fixed connection can be welding, screw connection, etc. The receiving portion 111 is fixedly connected to the fixing portion 112 or integrally formed. The end of the receiving portion 111 facing the second connecting portion is inclined downward. In this embodiment, the receiving portion 111 is a flat plate. In fact, the receiving portion 111 can also be an arc-shaped plate, and the center of the circle corresponding to the arc-shaped plate is located below the first bridge plate 11; or the receiving portion 111 can also be multiple flat plates fixedly connected, and at least the flat plate closest to the second connecting portion 2 has its end facing the second connecting portion 2 inclined downward.

[0041] The end of the first bridge plate 11 facing the second connecting portion 2 slopes downward. On the one hand, it is convenient for the second bridge plate 21 to overlap on the top of the first bridge plate 11. On the other hand, after the second bridge plate 21 overlaps with the first bridge plate 11, since the overlapping portion moves downward along with the end of the first bridge plate 11, it is avoided that an excessive step appears between the first bridge plate 11 and the second bridge plate 21, which affects the passage of the photovoltaic panel cleaning robot.

[0042] Preferably, a first vertical plate 12 is provided on the outer edge of the first bridge plate 11. The outer side of the first bridge plate 11 is shown in the X direction in the figure. The first vertical plate 12 is fixedly connected or integrally formed with the first bridge plate. The first vertical plate 12 is bent downward relative to the first bridge plate 11. Preferably, the bending angle is greater than 0° and less than or equal to 90°. The bent structure of the first vertical plate 12 and the first bridge plate 11 can strengthen the supporting strength of the first bridge plate 11. Figure 1 Preferably, the first vertical plate 12 is parallel to the side surface of the first photovoltaic panel 3. Alternatively, the included angle between the first vertical plate 12 and the first bridge plate is 90°. When the photovoltaic panel cleaning robot is provided with hanging wheels, if the first vertical plate 12 is parallel to the side surface of the first photovoltaic panel 3, the first vertical plate 12 can be used as an extension of the second vertical plate 22. When the photovoltaic panel cleaning robot passes through the passage between the photovoltaic panel arrays, the first vertical plate 12 parallel to the side wall of the photovoltaic panel can also provide a walking support surface for the hanging wheels, avoiding the photovoltaic panel cleaning robot from slipping off the photovoltaic panel.

[0043] Preferably, the width of the second bridge plate 21 is greater than the width of the first bridge plate 11. Since the second bridge plate 21 needs to overlap on the top of the first bridge plate 11, when the width of the second bridge plate 21 is larger, it can effectively ensure that the second bridge plate 21 and the second vertical plate 22 connected to the second bridge plate 21 respectively overlap on the outside of the first bridge plate 11 and the first vertical plate 12, avoiding the failure situation of jamming when overlapping due to the large difference in the positions of the two photovoltaic panel arrays after rotation. And when the first bridge plate 11 overlaps with the second bridge plate 21, the second vertical plate 22 is located outside the first vertical plate 12, avoiding the situation where the first bridge plate 11 and the second bridge plate 21 cannot overlap.

[0044] Preferably, the width of the second bridge plate 21 is greater than the width of the first bridge plate 11. Since the second bridge plate 21 needs to overlap on the top of the first bridge plate 11, when the width of the second bridge plate 21 is larger, it can effectively ensure that the second bridge plate 21 and the second vertical plate 22 connected to the second bridge plate 21 respectively overlap on the outside of the first bridge plate 11 and the first vertical plate 12, avoiding the failure situation of jamming when overlapping due to the large difference in the positions of the two photovoltaic panel arrays after rotation. And when the first bridge plate 11 overlaps with the second bridge plate 21, the second vertical plate 22 is located outside the first vertical plate 12, avoiding the situation where the first bridge plate 11 and the second bridge plate 21 cannot overlap.

[0045] Optionally, refer to Figure 2 and Figure 3As shown in the figure, the second bridge plate 21 includes a hinge portion 211, a lapping portion 213, and at least one extension portion 212 disposed between the hinge portion 211 and the lapping portion 213. The extension portion 212 is bent relative to the hinge portion 211 and the lapping portion 213 respectively, so as to share the central angle corresponding to the arc formed by the second bridge plate 21. Among them, the hinge portion 211, the lapping portion 213, and the extension portion 212 are all flat plate structures, and the extension portion 212 is fixedly connected to the hinge portion 211 and the lapping portion 213 respectively, or the extension portion 212 is integrally formed with the hinge portion 211 and the lapping portion 213 and then bent to form. When the aisle between the photovoltaic panel arrays is relatively wide, the length of the extension portion 212 in the aisle width direction can be increased, or the number of segments of the extension portion 212 can be increased.

[0046] Since the hinge portion 211, the lapping portion 213, and the extension portion 212 are all flat plate structures, the manufacturing process of the second bridge plate 21 as a whole is relatively simple. For example, a flat plate can be used to bend out the hinge portion 211, the lapping portion 213, and the extension portion 212, and then the edge of one side of the flat plate is cut and slightly adjusted to form the second vertical plate. It can be seen that it is not only simple in structure, but also low in cost and convenient to manufacture.

[0047] The hinge portion 211 is used to be hinged with the second frame 6. Exemplarily, the hinge portion 211 is fixedly connected to the second hinge assembly 72, and the first hinge assembly 71 is fixedly connected to the second frame 6, and the first hinge assembly 71 and the second hinge assembly 72 are hinged. It should be noted that only an exemplary description of a hinge connection method is given in this embodiment, and it cannot be used as an adverse limitation to the present invention.

[0048] The lapping portion 213 is used to overlap on the first connecting portion 1. And, one end of the lapping portion 213 facing the first connecting portion 1 is inclined downward. The principle of the end of the lapping portion 213 being inclined downward is basically the same as that of the end of the first bridge plate 11 being inclined downward. On the one hand, it is convenient for the second bridge plate 21 to lap on the top of the lapping portion 213 of the first bridge plate 11; on the other hand, it makes the contact part between the first bridge plate 11 and the second bridge plate 21 move downward, avoiding a too large step after the first bridge plate 11 and the second bridge plate 21 are lapped and affecting the passage of the photovoltaic panel cleaning robot.

[0049] Preferably, a damping component is provided at the part where the second connecting portion 2 is hinged to the second frame 6. Exemplarily, a damping rotating shaft hinge can be used to connect the second frame 6 and the second connecting portion 2. Setting the damping component can, on the one hand, avoid strong collision between the second connecting portion 2 and the first connecting portion 1 and extend the service life of the components; on the other hand, the second connecting portion 2 slowly laps on the first connecting portion 1 to ensure the lapping effect.

[0050] Such as Figure 7As shown, another photovoltaic panel connection structure provided by an embodiment of the present invention. The second bridge plate 21 is an arc-shaped plate, and the center of the circle corresponding to the second bridge plate 21 is below the second bridge plate 21. The first bridge plate 11 is also an arc-shaped plate, and the center of the circle corresponding to the first bridge plate 11 is below the first bridge plate 11. The ends of the first bridge plate 11 and the second bridge plate 21 that are close to each other are inclined downward.

[0051] For the first connection part 1 and the second connection part 2 in the above embodiment, metal plates can be selected, such as aluminum plates, stainless steel plates, etc. The first frame 5 and the second frame 6 can be rod-shaped metal frames or aluminum profiles, etc.

[0052] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A photovoltaic panel connection structure, characterized in that, it includes a first connection part (1) and a second connection part (2); the first end of the first connection part (1) is fixedly connected to a first frame (5), the position of the first frame (5) relative to the first photovoltaic panel (3) remains unchanged, and the second end of the first connection part (1) extends towards the second photovoltaic panel (4); the first end of the second connection part (2) is hinged to a second frame (6), the position of the second frame (6) relative to the second photovoltaic panel (4) remains unchanged, and the second end of the second connection part (2) is used to overlap above the first connection part (1), so that the photovoltaic panel connection structure forms an effective connection channel in the aisle between the first photovoltaic panel (3) and the second photovoltaic panel (4) for a photovoltaic panel cleaning robot to walk; the sum of the lengths of the first connection part (1) and the second connection part (2) is greater than the maximum distance between the relative edges of the first photovoltaic panel (3) and the second photovoltaic panel (4); the second connection part (2) includes a second bridge plate (21), and the second bridge plate (21) is a upward convex structure; the outer edge of the second bridge plate (21) is provided with a second vertical plate (22), and the second vertical plate (22) is bent downward relative to the second bridge plate (21); the second vertical plate (22) is parallel to the side surface of the second photovoltaic panel (4); the first connection part (1) includes a first bridge plate (11), and one end of the first bridge plate (11) facing the second connection part (2) is inclined downward; the width of the second bridge plate (21) is greater than the width of the first bridge plate (11); the outer edge of the first bridge plate (11) is provided with a first vertical plate (12), and the first vertical plate (12) is bent downward relative to the first bridge plate (11).

2. The photovoltaic panel connection structure according to claim 1, characterized in that, the first vertical plate (12) is parallel to the side surface of the first photovoltaic panel (3).

3. The photovoltaic panel connection structure according to claim 2, characterized in that, the second bridge plate (21) includes a hinge part (211), a lapping part (213) and at least one extension part (212) arranged between the hinge part (211) and the lapping part (213), the hinge part (211) is used for hinging with the second frame (6), the lapping part (213) is used for overlapping on the first connection part (1), and the extension part (212) is bent relative to the hinge part (211) and the lapping part (213) respectively.

4. The photovoltaic panel connection structure according to claim 2, characterized in that, a damping component is arranged at the part where the second connection part (2) is hinged to the second frame (6).

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