A photovoltaic module interconnect structure and photovoltaic system

Abstract

This invention discloses a photovoltaic module purlin structure and its photovoltaic system, relating to the field of photovoltaic power generation technology. It solves the problems of inconvenient nut operation within the purlin due to its small internal space, and the tendency for screws to tilt when passing through the purlin when fixing it to the photovoltaic panel due to its large thickness, thus affecting the construction efficiency of the photovoltaic structure. The photovoltaic module purlin structure includes a purlin body with two symmetrically distributed guide strips fixed to its inner side. Multiple mounting locking grooves are provided through the bottom of the purlin body, linearly arrayed along its length. This invention eliminates the need for manual anti-deflection operation of the nuts when fixing the purlin body to the inclined beam, as the purlin body is connected to the inclined beam.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, specifically to a photovoltaic module purlin structure and its photovoltaic system. Background Technology

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy. It mainly consists of three parts: solar panels (modules), controllers, and inverters. The main components are made of electronic components. Solar cells are connected in series and then encapsulated for protection to form large-area solar cell modules. Combined with power controllers and other components, a photovoltaic power generation device is formed. Photovoltaic panels for photovoltaic power generation are installed on photovoltaic brackets. The photovoltaic brackets mainly consist of main beams, inclined beams, bases, and purlins. The purlins are installed horizontally on the inclined beams and are parallel to the main beams. They are the connecting parts and bases for fixing the photovoltaic panels.

[0003] However, when connecting purlins to inclined beams, the small internal space of the purlins makes it extremely inconvenient to operate the nuts inside the purlins. When fixing purlins to photovoltaic panels, the large thickness of the purlins makes it easy for screws to tilt when passing through them, affecting the construction efficiency of the photovoltaic structure. Therefore, it does not meet the existing requirements. To address this, we propose a photovoltaic module purlin structure and its photovoltaic system. Summary of the Invention

[0004] The purpose of this invention is to provide a photovoltaic module purlin structure and its photovoltaic system, in order to solve the problems mentioned in the background art, such as the inconvenience of operating the nut inside the purlin when connecting the purlin to the inclined beam due to the small internal space of the purlin, and the easy tilting of the screw when passing through the purlin when fixing the purlin to the photovoltaic panel due to the large thickness of the purlin, which affects the construction efficiency of the photovoltaic structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic module purlin structure, comprising a purlin body, wherein two symmetrically distributed guide strips are fixed on the inner side of the purlin body, and a plurality of mounting locking grooves are provided through the bottom of the purlin body, wherein the mounting locking grooves are linearly arrayed along the length direction of the purlin body; A sliding adjustment seat is provided between the two guide strips. A cover is detachably installed on the top of the sliding adjustment seat. Two symmetrically distributed guide slides are fixed on the surface of the sliding adjustment seat. The guide slides are slidably engaged with the mounting locking groove.

[0006] Preferably, the sliding adjustment seat includes a movable plate with a screw hole at its center and six vertical positioning strips fixed on its surface, the vertical positioning strips being arranged in a circular array around the screw hole.

[0007] Preferably, the guide slide includes a fixed plate, the bottom end of which is fixedly connected to the movable plate, a transition plate is fixed to the top end of the fixed plate, and a curved connecting plate is fixed to the side of the transition plate near the guide strip. The fixed plate, the transition plate, and the curved connecting plate form a U-shaped structure.

[0008] Preferably, a guide plate is fixed to the bottom of the curved connecting plate. The guide plate is L-shaped and forms a U-shaped locking groove between the guide plate and the bottom edge of the curved connecting plate. The guide strip is locked inside the U-shaped locking groove.

[0009] Preferably, the cover includes a cover plate with a through hole in the center, the inner surface of the through hole being threaded, and six symmetrically distributed snap-fit ​​blocks fixed to the bottom of the cover plate.

[0010] Preferably, a guide is detachably installed on the inner side of the mounting locking groove. The guide includes a support plate, which is U-shaped and bent inward at 90 degrees at both ends. Anti-detachment plates are fixed at both ends of the support plate, and the bottom end of the anti-detachment plate is L-shaped.

[0011] Preferably, a guide cylinder is fixed through the middle of the support plate, and a rubber liner is embedded on the inner side of the guide cylinder.

[0012] A photovoltaic system includes a photovoltaic module purlin structure, a photovoltaic panel, a main beam, inclined beams, a photovoltaic conversion module, and an energy storage and transmission module. The inclined beams are installed on both sides of the main beam. The photovoltaic module purlin structure is installed on the surface of the inclined beams, which are linearly arrayed along the main beam, and is locked with bolts. The photovoltaic panel is fixed to the photovoltaic module purlin structure by screws and nuts. The photovoltaic panel is connected to the energy storage and transmission module through the photovoltaic conversion module.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention positions and prevents deflection of the fastening nut by means of a sliding adjustment seat, and covers the screw after placement by means of a cover. When fixing the purlin body to the inclined beam, there is no need to manually prevent the nut from deflecting. The sliding adjustment seat slides between two mounting locking slots by means of a guide slide, which makes it easy to adjust the nut position according to the screw position, reducing the operation difficulty during purlin construction and improving the construction efficiency of purlin. 2. This invention, when locking the photovoltaic panel and purlin, involves engaging a guide member inside the mounting and locking groove where the screw is placed, and then passing the screw through the guide member. This ensures that the screw will not tilt when it aligns with the nut on the photovoltaic panel, reducing operational difficulty and improving the connection efficiency between the photovoltaic panel and the purlin. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the purlin body of the present invention; Figure 3 This is a schematic diagram of the structure of the cover of the present invention; Figure 4 This is a schematic diagram of the structure of the cover of the present invention; Figure 5 This is a schematic diagram of the structure of the guide slide of the present invention; Figure 6 This is a schematic diagram of the installation of the guide component of the present invention; Figure 7 This is a schematic diagram of the structure of the guide component of the present invention; Figure 8 This is a cross-sectional view of the guide cylinder of the present invention.

[0015] In the diagram: 1. Purlin body; 2. Guide strip; 3. Mounting locking groove; 4. Sliding adjustment seat; 41. Moving plate; 42. Vertical positioning strip; 43. Screw through hole; 5. Guide slide; 51. Fixing plate; 52. Adapter plate; 53. Bending connecting plate; 54. Guide plate; 55. U-shaped snap-fit ​​groove; 6. Cover; 61. Cover plate; 62. Snap-fit ​​block; 63. Through hole; 7. Guide; 71. Support plate; 72. Guide cylinder; 73. Anti-detachment plate; 74. Rubber liner. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] like Figure 1 As shown, a photovoltaic module purlin structure includes a purlin body 1, with two symmetrically distributed guide bars 2 fixed on the inner side of the purlin body 1, and a plurality of mounting locking grooves 3 penetrating through the bottom of the purlin body 1, the mounting locking grooves 3 being linearly arrayed along the length direction of the purlin body 1.

[0018] like Figures 2 to 5 As shown, a sliding adjustment seat 4 is provided between the two guide bars 2. A cover 6 is detachably installed on the top of the sliding adjustment seat 4. Two symmetrically distributed guide slides 5 are fixed on the surface of the sliding adjustment seat 4. The guide slides 5 are slidably engaged with the mounting locking groove 3. The fastening nut is positioned and anti-deflection is limited by the sliding adjustment seat 4. At the same time, the cover 6 is used to cover the screw after placement. When fixing the purlin body 1 to the inclined beam, there is no need to manually anti-deflect the nut.

[0019] The sliding adjustment seat 4 includes a movable plate 41, with a screw hole 43 at the center of the movable plate 41. Six vertical positioning strips 42 are fixed on the surface of the movable plate 41. The vertical positioning strips 42 are arranged in a circular array around the screw hole 43. The six vertical positioning strips 42 are used to guide and position the nut and prevent the nut from rotating during the screw connection process.

[0020] The guide slide 5 includes a fixed plate 51, the bottom end of which is fixedly connected to the movable plate 41. A transition plate 52 is fixed to the top of the fixed plate 51. A curved connecting plate 53 is fixed to the side of the transition plate 52 near the guide bar 2. The fixed plate 51, the transition plate 52, and the curved connecting plate 53 form a U-shaped structure. A guide plate 54 is fixed to the bottom of the curved connecting plate 53. The guide plate 54 is bent in an L-shape. A U-shaped locking groove 55 is formed between the bottom edge of the guide plate 54 and the curved connecting plate 53. The guide bar 2 is locked inside the U-shaped locking groove 55. The guide slide 5 is used to lock the sliding adjustment seat 4 between the two guide bars 2. The sliding adjustment seat 4 can slide between the two guide bars 2 by relying on the guide slide 5, thereby changing the position of the screw installed on the sliding adjustment seat 4.

[0021] The cover 6 includes a cover plate 61 with a through hole 63 through its center. The inner surface of the through hole 63 is threaded. Six symmetrically distributed snap-fit ​​blocks 62 are fixed to the bottom of the cover plate 61. The cover plate 61 is used to fix the threads between the six vertical positioning bars 42 from above, preventing the nut from being pushed upward from between the six vertical positioning bars 42 due to contact with the screw. The snap-fit ​​blocks 62 ensure that after the screw passes through the nut and enters the through hole 63, the through hole 63 is prevented from rotating simultaneously due to the rotation of the screw.

[0022] like Figures 6 to 8 As shown, a guide 7 is detachably installed on the inner side of the mounting locking groove 3. The guide 7 includes a support plate 71, which is U-shaped and bent inward at 90 degrees at both ends. Anti-detachment plates 73 are fixed at both ends of the support plate 71. The bottom end of the anti-detachment plate 73 is L-shaped. By pressing the two ends of the support plate 71 inward, the distance between the two guide cylinders 72 can be changed, making it convenient for the guide 7 to be engaged with or removed from the inner side of the mounting locking groove 3.

[0023] A guide tube 72 is fixed through the middle of the support plate 71. A rubber liner 74 is embedded on the inner side of the guide tube 72. The guide tube 72 guides the screw and prevents the screw from tilting when passing through the mounting locking groove 3. The presence of the rubber liner 74 prevents the screw from shaking between the guide tube 72.

[0024] Working principle: When installing the purlin body 1, first place the purlin body 1 on the surface of the inclined beam that has been fixed to the main beam, and ensure that a certain installation locking groove 3 at the bottom of the purlin body 1 is aligned with the inclined beam. At this time, push the sliding adjustment seat 4 so that the sliding adjustment seat 4 slides between the two guide strips 2 by the guide slide 5 until the moving plate 41 moves to the position of the installation locking groove 3 aligned with the inclined beam. At this time, place the fastening nut between the six vertical positioning strips 42, and cover the screw with the cover plate 61 and the snap block 62. Then, pass the fastening screw through the inclined beam, the installation locking groove 3 and the vertical positioning strips 42 and connect it with the nut. During the tightening of the screw and nut, there is no need for manual anti-deflection restriction operation of the nut, which reduces the operation difficulty during purlin construction and improves the construction efficiency of purlin. When installing the photovoltaic panel on the surface of the purlin body 1, place the nut at the position where the photovoltaic panel needs to be locked, and then press the two ends of the support plate 71 inward so that the two anti-detachment plates 73 approach each other and pass through the installation locking groove 3. At this time, release the end of the support plate 71, and the support plate 71 drives the anti-detachment plates 73 to reset and lock into the inside of the installation locking groove 3. Then, pass the screw through the installation locking groove 3 and the guide cylinder 72 and connect it with the nut on the photovoltaic panel. During this process, the screw will not tilt, which reduces the operation difficulty of installing the photovoltaic panel and the purlin and improves the connection efficiency between the photovoltaic panel and the purlin.

[0025] A photovoltaic system includes a photovoltaic module purlin structure, a photovoltaic panel, a main beam, inclined beams, a photovoltaic conversion module, and an energy storage and transmission module. The inclined beams are installed on both sides of the main beam. The photovoltaic module purlin structure is installed on the surface of the inclined beams, which are linearly arrayed along the main beam, and is locked with bolts. The photovoltaic panel is fixed to the photovoltaic module purlin structure by screws and nuts. The photovoltaic panel is connected to the energy storage and transmission module through the photovoltaic conversion module.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A purlin structure for a photovoltaic module, comprising a purlin body (1), characterized in that: Two symmetrically distributed guide strips (2) are fixed on the inner side of the purlin body (1), and multiple mounting locking grooves (3) are provided through the bottom of the purlin body (1). The mounting locking grooves (3) are linearly arrayed along the length direction of the purlin body (1). A sliding adjustment seat (4) is provided between the two guide bars (2). A cover (6) is detachably installed on the top of the sliding adjustment seat (4). Two symmetrically distributed guide slides (5) are fixed on the surface of the sliding adjustment seat (4). The guide slides (5) are slidably engaged with the mounting locking groove (3).

2. The photovoltaic module purlin structure according to claim 1, characterized in that: The sliding adjustment seat (4) includes a movable plate (41), with a screw hole (43) at the center of the movable plate (41). Six vertical positioning strips (42) are fixed on the surface of the movable plate (41), and the vertical positioning strips (42) are arranged in a ring array around the screw hole (43).

3. The photovoltaic module purlin structure according to claim 2, characterized in that: The guide slide (5) includes a fixed plate (51), the bottom end of which is fixedly connected to the moving plate (41), and a transition plate (52) is fixed to the top end of the fixed plate (51). A curved connecting plate (53) is fixed to the side of the transition plate (52) near the guide strip (2). The fixed plate (51), the transition plate (52), and the curved connecting plate (53) form a U-shaped structure.

4. The photovoltaic module purlin structure according to claim 3, characterized in that: The bottom of the curved connecting plate (53) is fixed with a guide plate (54), the guide plate (54) is bent in an L shape, and a U-shaped snap-fit ​​groove (55) is formed between the guide plate (54) and the bottom edge of the curved connecting plate (53). The guide strip (2) is snapped into the inside of the U-shaped snap-fit ​​groove (55).

5. The photovoltaic module purlin structure according to claim 4, characterized in that: The cover (6) includes a cover plate (61), a through hole (63) is provided through the center of the cover plate (61), the inner surface of the through hole (63) is provided with threads, and six symmetrically distributed snap-fit ​​blocks (62) are fixed at the bottom of the cover plate (61).

6. The photovoltaic module purlin structure according to claim 5, characterized in that: The inner side of the mounting locking groove (3) is detachably equipped with a guide (7), the guide (7) includes a support plate (71), the support plate (71) is U-shaped and both ends are bent inward at ninety degrees, both ends of the support plate (71) are fixed with anti-detachment plates (73), and the bottom end of the anti-detachment plate (73) is L-shaped.

7. A photovoltaic module purlin structure according to claim 6, characterized in that: A guide tube (72) is fixed through the middle of the support plate (71), and a rubber liner (74) is embedded on the inner side of the guide tube (72).

8. A photovoltaic system, characterized in that: The photovoltaic module includes a purlin structure, a photovoltaic panel, a main beam, an inclined beam, a photovoltaic conversion module, and an energy storage and transmission module as described in any one of claims 1-7. The inclined beams are installed on both sides of the main beam. The photovoltaic module purlin structure is installed on the surface of the inclined beams, which are linearly distributed along the main beam, and is locked with bolts. The photovoltaic panel is fixed to the photovoltaic module purlin structure by screws and nuts. The photovoltaic panel is connected to the energy storage and transmission module through the photovoltaic conversion module.

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