Purline and photovoltaic structure

Abstract

The utility model discloses a purline and a photovoltaic structure, the purline comprises a first open slot and two second open slots distributed at two sides of the first open slot, the openings of the first open slot and the second open slots are upward, and the width and the depth of the second open slots are respectively smaller than the width and the depth of the first open slot; the photovoltaic structure comprises a limiting shaft, an elastic piece and a purline, at least part of the assembly frame of the photovoltaic assembly is located in the second open groove of the purline, the limiting shaft penetrates through the purline and the assembly frame, and the elastic piece is arranged on the periphery of the limiting shaft in a sleeving mode and located in the first open groove of the purline. Through cooperation of the purlines, the limiting shafts and the elastic pieces, the efficiency and convenience of mounting and dismounting the photovoltaic module are improved, the photovoltaic module can be mounted by using a robot, the structure is simple, the labor cost is reduced, and the module processing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power station technology, and in particular to a purlin and photovoltaic structure. Background Technology

[0002] The construction of photovoltaic power stations mainly involves bracket installation and module installation. The module installation and fixing is basically done by using bolts to fix the module frame to the purlin. This method requires manual installation, which is inefficient and poses construction safety hazards.

[0003] Therefore, it is necessary to provide a new purlin and photovoltaic structure to solve the above problems, especially one that is suitable for automated installation operations of photovoltaic robots. Utility Model Content

[0004] The purpose of this utility model is to provide a purlin and photovoltaic structure that facilitates the installation of photovoltaic modules.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A purlin includes a first opening groove and two second opening grooves distributed on both sides of the first opening groove. The openings of the first opening groove and the second opening grooves are both upward. The width and depth of the second opening grooves are smaller than the width and depth of the first opening groove, respectively.

[0007] As a further improvement of the present invention, the first opening groove includes a first bottom wall and two first side walls disposed on opposite sides of the first bottom wall, and the first bottom wall is connected to the two first side walls. The second opening groove includes a second bottom wall and two second side walls disposed on opposite sides of the second bottom wall, and the second bottom wall is connected to the two second side walls. The height of the second bottom wall is higher than that of the first bottom wall.

[0008] As a further improvement of the present invention, the first opening groove and the second opening groove are connected by a connecting part, and the connecting part connects the first sidewall and the adjacent second sidewall.

[0009] To achieve the above objectives, the present invention also adopts the following technical solution:

[0010] A photovoltaic structure includes a limiting shaft, an elastic element, and a purlin as described in any of the above. The frame of the photovoltaic module is at least partially located within a second opening groove of the purlin. The limiting shaft passes through the purlin and the frame of the module. The elastic element is sleeved on the outer periphery of the limiting shaft and located within the first opening groove of the purlin.

[0011] As a further improvement of the present invention, the first opening groove includes a first bottom wall and two first side walls, the first side wall having a first through hole, the second opening groove includes a second bottom wall and two second side walls, the second side walls having a second through hole, the limiting shaft passing through the first through hole and the second through hole, and the elastic member being located between the two first side walls.

[0012] As a further improvement of the present invention, the width of the second opening groove is equivalent to the width of the component frame, the component frame is provided with a third through hole, the third through hole is coaxial with the center of the first through hole and the second through hole, and the limiting shaft passes through the first through hole, the second through hole and the third through hole.

[0013] As a further improvement of the present invention, the limiting shaft includes a circular shaft portion and limiting portions disposed at both ends of the circular shaft portion, the elastic element is sleeved on the outer periphery of the circular shaft portion, and the limiting portions pass through the first through hole, the second through hole and the third through hole.

[0014] As a further improvement of the present invention, the projection of the circular shaft portion on the limiting portion is located within the outer contour of the limiting portion, the outer diameter of the elastic element is larger than the diameter of the first through hole, and the limiting portion is adapted to the first through hole, the second through hole and the third through hole.

[0015] As a further improvement of the present invention, the limiting part includes an extension part, the height of the extension part gradually decreases toward the side away from the circular shaft part, and the upper surface of the extension part is formed as an inclined surface.

[0016] As a further improvement of this utility model, the length of the limiting shaft is less than the distance between the two second sidewalls that are far from the first opening groove.

[0017] Compared to existing technologies, the advantages of this utility model's purlin and photovoltaic structure are as follows: By designing a novel purlin including a first opening slot and two second opening slots, along with a limiting shaft and elastic element used in conjunction with it, installing photovoltaic modules only requires fixing the module frame in the second opening slot. The limiting shaft and elastic element then connect the photovoltaic module frame to the novel purlin, eliminating the need for bolts to fix the module frame to the purlin, thus reducing aluminum frame material and lowering module processing costs. This purlin and photovoltaic structure is simple in structure and low in cost, improving the efficiency and convenience of photovoltaic module installation and disassembly, and is particularly suitable for automated installation operations using photovoltaic robots. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the assembly of the purlin, limiting shaft, and elastic element according to a specific embodiment of the present utility model.

[0019] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0020] Figure 3 for Figure 1 Front view diagram;

[0021] Figure 4 This is a schematic diagram of the installation of a photovoltaic module according to a specific embodiment of the present invention;

[0022] Figure 5 for Figure 4 A magnified structural diagram of region A in the middle. Detailed Implementation

[0023] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0024] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0025] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this utility model are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. In this utility model, the word "several" means two or more.

[0026] Please see Figures 1 to 5 As shown, this embodiment discloses a photovoltaic structure, including a purlin 10, a limiting shaft 20, and an elastic element 30. The limiting shaft 20 passes through the purlin 10, and the elastic element 30 is sleeved on the outer periphery of the limiting shaft 20. This photovoltaic structure allows the photovoltaic module 40 to be installed by a robot without manual operation. The robot only needs to press down on the photovoltaic module 40 to secure the module frame 41 to the purlin 10, making installation and disassembly convenient.

[0027] Please see Figures 1 to 3 As shown, the purlin 10 includes a first opening groove 11, a second opening groove 12, and a connecting portion 13. One first opening groove 11 and two second opening grooves 12 are provided, distributed on both sides of the first opening groove 11, with both openings facing upwards. Further, the first opening groove 11 includes a first bottom wall 111 and two first side walls 112 disposed on opposite sides of the first bottom wall 111, with the first bottom wall 111 connected to the two first side walls 112. The second opening groove 12 includes a second bottom wall 121 and two second side walls 122 disposed on opposite sides of the second bottom wall 121, with the second bottom wall 121 connected to the two second side walls 122. The first bottom wall 111 and the second bottom wall 121 are parallel, and the first side walls 112 and the second side walls 122 are parallel. In this embodiment, in its natural state, the first side wall 112 is perpendicular to the first bottom wall 111, and the second side wall 122 is perpendicular to the second bottom wall 121. The first opening groove 11 and the second opening groove 12 are connected by a connecting part 13. The two ends of the connecting part 13 are respectively connected to the first side wall 112 and the adjacent second side wall 122. Specifically, the two ends of the connecting part 13 are respectively connected to the end of the first side wall 112 away from the first bottom wall 111 and the end of the second side wall 122 away from the second bottom wall 121. Further, the width and depth of the second opening groove 12 are smaller than the width and depth of the first opening groove 11, that is, the width of the second bottom wall 121 is smaller than the width of the first bottom wall 111, and the height of the second side wall 122 is smaller than the height of the first side wall 112; thus, the first opening groove 11 can effectively support the second opening groove 12.

[0028] In some implementations, please refer to Figures 1 to 3 As shown, the upper end of the second opening groove 12 is flush with the upper end of the first opening groove 11, and the height of the second bottom wall 121 is higher than that of the first bottom wall 111. In this way, the first opening groove 11 provides stronger support for the second opening groove 12.

[0029] In other embodiments, the upper end of the second opening groove 12 may be higher or lower than the upper end of the first opening groove 11, and the second bottom wall 121 may be lower than the first bottom wall 111 or flush with the first bottom wall 111. The width and depth of the second opening groove 12 need to be set accordingly to meet the support stability of the first opening groove 11 on the second opening groove 12.

[0030] Please see Figures 1 to 3 As shown, the first sidewall 112 has a first through hole 1121, the second sidewall 122 has a second through hole 1221, the first through hole 1121 and the second through hole 1221 are coaxial, the limiting shaft 20 passes through the first through hole 1121 and the second through hole 1221, and the elastic member 30 is located between the two first sidewalls 112.

[0031] Please see Figure 4 and Figure 5 As shown, the component frame 41 is at least partially located within the second opening groove 12. Furthermore, the width of the second opening groove 12 is approximately equal to the width of the component frame 41, so that the component frame 41 can be stably secured in the second opening groove 12. The component frame 41 is provided with a third through hole 411, which is coaxial with the center of the first through hole 1121 and the second through hole 1221. The limiting shaft 20 passes through the first through hole 1121, the second through hole 1221 and the third through hole 411, so that the component frame 41 is fixedly connected to the purlin 10.

[0032] Further, please refer to Figure 1 and Figure 5 As shown, the first bottom wall 111 is provided with a fourth through hole 1111 to facilitate the installation of the purlin 10 on the main shaft of the photovoltaic structure.

[0033] In this embodiment, the connections between the various parts of the purlin 10 are all rounded, specifically including the connections between the first bottom wall 111 and the first side wall 112, the connections between the second bottom wall 121 and the second side wall 122, the connections between the first side wall 112 and the connecting part 13, and the connections between the second side wall 122 and the connecting part 13. This arrangement can prevent the purlin 10 from damaging other components during the installation of the photovoltaic structure or photovoltaic module, and at the same time improves the strength of the purlin 10 itself to a certain extent.

[0034] Please see Figures 1 to 3As shown, the limiting shaft 20 includes a circular shaft portion 21 and a limiting portion 22. The limiting portion 22 is disposed at both ends of the circular shaft portion 21, and the elastic member 30 is sleeved on the outer periphery of the circular shaft portion 21. The limiting portion 22 has a first through hole 1121, a second through hole 1221, and a third through hole 411. Furthermore, the projection of the circular shaft portion 21 onto the limiting portion 22 is located within the outer contour of the limiting portion 22, that is, the radial dimension of the circular shaft portion 21 is smaller than the radial dimension of the limiting portion 22. Furthermore, the radial cross-section of the circular shaft portion 21 is circular, and the radial cross-section of the limiting portion 22 is square. The limiting portion 22 is adapted to the first through hole 1121, the second through hole 1221, and the third through hole 411. That is, the shapes of the first through hole 1121, the second through hole 1221, and the third through hole 411 are the same as the shape of the radial cross-section of the limiting portion 22. In other embodiments, the radial cross-section of the limiting portion 22 can also be other shapes, including any shape other than circular, so that the limiting shaft 20 can be fixedly inserted through the first through hole 1121, the second through hole 1221, and the third through hole 411 without rotation, thus ensuring the stability of the fixed photovoltaic module 40.

[0035] In some implementations, please refer to Figures 1 to 3 As shown, the limiting part 22 includes an extension part 221, which is disposed at the end of the limiting part 22 away from the circular shaft part 21. The height of the extension part 221 gradually decreases toward the side away from the circular shaft part 21, and the upper surface of the extension part 221 is formed as an inclined surface. Specifically, in this embodiment, as can be seen from the figure, the extension part 221 can be regarded as being formed by extending the limiting part 22 axially as a whole and then cutting off a portion obliquely. Therefore, its upper surface is an inclined surface, and its lower surface is flush with the lower surface of the limiting part 22 as a whole. In this way, when installing the photovoltaic module 40, the module frame 41 can slide obliquely downward along the inclined surface of the extension part 221 until it is locked in the second opening groove 12. Furthermore, the length of the limiting shaft 20 is less than the distance between the two second sidewalls 122 that are far from the first opening slot 11, and there is a certain distance between the two ends of the limiting shaft 20 and the two second sidewalls 122 respectively; in this way, space is provided for the component frame 41 to be pressed down and installed, and the deformation of the purlin 10 caused by the extrusion is within a certain range.

[0036] In this embodiment, the elastic element 30 is a spring with an outer diameter larger than the diameter of the first through hole 1121, ensuring that the elastic element 30 is always located between the two first sidewalls 112. Furthermore, the length of the elastic element 30 in its natural state is not less than the distance between the two first sidewalls 112, meaning that when the elastic element 30 is installed in the first opening slot 11, its two ends abut against the two first sidewalls 112 respectively. Thus, when the component frame 41 is pressed down, the purlin 10 deforms under pressure, the two first sidewalls 112 move closer together and tilt, and the elastic element 30 contracts; after the component frame 41 is pressed into place, the elastic element 30 rebounds, restoring the purlin 10 to its original shape, thereby stabilizing and fixing the component frame 41.

[0037] Please see Figures 3 to 5 As shown, in this embodiment, when installing the photovoltaic module 40, the elastic element 30 is first placed in the first opening groove 11. The limiting shaft 20 passes sequentially from one side through two second through holes 1221, the first through hole 1121, the elastic element 30, the first through hole 1121, and the second through hole 1221 of the second opening groove 12 on the other side, close to the first opening groove 11, until both ends of the limiting shaft 20 are a certain distance from the outer second sidewall 122, completing the installation of the limiting shaft 20 and the elastic element 30 on the purlin 10. Then, the photovoltaic module 40 can be installed on the purlin 10. The module frame 41 is pressed down at the second opening groove 12. When the lower end of the module frame 41 contacts the limiting shaft 20, it slides obliquely downward along the inclined surface of the extension 221. The module frame 41 is close to the second sidewall 122 away from the first opening groove 11 and gradually moves away from it. The second sidewall 122 adjacent to the first opening slot 11 slides from the lower end of the component frame 41 away from the limiting shaft 20 and along the side of the component frame 41 to the third through hole 411. At the same time, the two first sidewalls 112 approach each other and tilt, squeezing the elastic member 30. The elastic member 30 contracts under force. At this time, the squeezing of the component frame 41 by the limiting shaft 20 on the component frame 41 causes the squeezing of the component frame 41 on the purlin 10 to disappear. The elastic member 30 rebounds, causing the purlin 10 to return to its original position. The extension 221 of the limiting shaft 20 is inserted into the third through hole 411. The second sidewall 122 away from the first opening slot 11 returns to its original position, causing the component frame 41 to approach the second sidewall 122 adjacent to the first opening slot 11. This makes the two sides of the component frame 41 tightly attached to the two second sidewalls 122, so as to fix the component frame 41 in the second opening slot 12, thereby completing the installation and fixation of the photovoltaic module 40.

[0038] When installing the photovoltaic module 40, only a simple pressing action is required; no bolts are needed for fixing. Furthermore, only corresponding holes need to be drilled in the module frame 41, eliminating the need for additional fixing connections. This reduces the width of the module frame 41 and the amount of aluminum frame material, lowering processing costs and improving installation efficiency. Because the installation process is simple, the photovoltaic robot can complete the designated actions without manual operation, saving labor costs.

[0039] In this embodiment, when disassembling the photovoltaic module 40, simply pull out the limiting shaft 20 to remove the fixing of the module frame 41, and the photovoltaic module 40 can be removed directly.

[0040] In other embodiments, the length of the limiting shaft 20 of the photovoltaic structure is set to be greater than or equal to the distance between the two second sidewalls 122 on both sides of the purlin 10. In this case, the installation of the photovoltaic module 40 cannot be achieved by direct pressing. Instead, the module frame 41 needs to be placed in the second opening slot 12 first, and then the limiting shaft 20 is passed through the purlin 10 and the module frame 41 to fix the photovoltaic module 40 on the photovoltaic structure.

[0041] In this embodiment, each purlin 10 is provided with two sets of limiting shafts 20 and elastic elements 30 to achieve the strength and stability of the installed photovoltaic module 40. In other embodiments, each purlin 10 may also be provided with two or more sets of limiting shafts 20 and elastic elements 30 as needed. The number of limiting shafts 20 and elastic elements 30 provided for each purlin 10 is not limited in this application.

[0042] In summary, compared with existing technologies, the purlin and photovoltaic structure of this utility model have the following advantages: By designing a novel purlin 10 including a first opening groove 11 and two second opening grooves 12, and a limiting shaft 20 and an elastic element 30 used in conjunction with it, installing the photovoltaic module 40 only requires fixing the module frame 41 in the second opening groove 12, and connecting the photovoltaic module frame 41 to the novel purlin 10 through the limiting shaft 20 and the elastic element 30. The module frame 41 does not need to be fixed to the purlin 10 with bolts, reducing aluminum frame material and lowering module processing costs. This purlin and photovoltaic structure is simple in structure and low in cost, improving the efficiency and convenience of photovoltaic module installation and disassembly.

[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A purlin (10), characterized in that: It includes a first opening groove (11) and two second opening grooves (12) distributed on both sides of the first opening groove (11). The openings of the first opening groove (11) and the second opening grooves (12) are both upward. The width and depth of the second opening grooves (12) are smaller than the width and depth of the first opening groove (11), respectively.

2. The purlin (10) according to claim 1, characterized in that: The first opening groove (11) includes a first bottom wall (111) and two first side walls (112) disposed on opposite sides of the first bottom wall (111), and the first bottom wall (111) is connected to the two first side walls (112). The second opening groove (12) includes a second bottom wall (121) and two second side walls (122) disposed on opposite sides of the second bottom wall (121), and the second bottom wall (121) is connected to the two second side walls (122). The height of the second bottom wall (121) is higher than that of the first bottom wall (111).

3. The purlin (10) according to claim 2, characterized in that: The first opening groove (11) and the second opening groove (12) are connected by a connecting part (13), which connects the first side wall (112) and the adjacent second side wall (122).

4. A photovoltaic structure, characterized in that: The photovoltaic module (40) includes a limiting shaft (20), an elastic element (30), and a purlin (10) as described in any one of claims 1 to 3. The module frame (41) of the photovoltaic module (40) is at least partially located in the second opening groove (12) of the purlin (10). The limiting shaft (20) passes through the purlin (10) and the module frame (41). The elastic element (30) is sleeved on the outer periphery of the limiting shaft (20) and located in the first opening groove (11) of the purlin (10).

5. The photovoltaic structure according to claim 4, characterized in that: The first opening groove (11) includes a first bottom wall (111) and two first side walls (112), the first side wall (112) having a first through hole (1121), the second opening groove (12) includes a second bottom wall (121) and two second side walls (122), the second side wall (122) having a second through hole (1221), the limiting shaft (20) passing through the first through hole (1121) and the second through hole (1221), and the elastic member (30) being located between the two first side walls (112).

6. The photovoltaic structure according to claim 5, characterized in that: The width of the second opening groove (12) is equivalent to the width of the component frame (41). The component frame (41) is provided with a third through hole (411). The third through hole (411) is coaxial with the center of the first through hole (1121) and the second through hole (1221). The limiting shaft (20) passes through the first through hole (1121), the second through hole (1221) and the third through hole (411).

7. The photovoltaic structure according to claim 6, characterized in that: The limiting shaft (20) includes a round shaft portion (21) and limiting portions (22) disposed at both ends of the round shaft portion (21). The elastic member (30) is sleeved on the outer periphery of the round shaft portion (21). The limiting portion (22) passes through the first through hole (1121), the second through hole (1221) and the third through hole (411).

8. The photovoltaic structure according to claim 7, characterized in that: The projection of the circular shaft portion (21) on the limiting portion (22) is located within the outer contour of the limiting portion (22), the outer diameter of the elastic element (30) is larger than the diameter of the first through hole (1121), and the limiting portion (22) is adapted to the first through hole (1121), the second through hole (1221) and the third through hole (411).

9. The photovoltaic structure according to claim 7, characterized in that: The limiting part (22) includes an extension part (221), the height of which gradually decreases toward the side away from the circular shaft part (21), and the upper surface of the extension part (221) is formed as an inclined surface.

10. The photovoltaic structure according to claim 9, characterized in that: The length of the limiting shaft (20) is less than the distance between the two second sidewalls (122) that are far from the first opening slot (11).

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