Photovoltaic panel connecting purline, photovoltaic panel mounting device and mounting method

Abstract

The invention provides a photovoltaic panel connecting purline, a photovoltaic panel mounting device and a photovoltaic panel mounting method. The photovoltaic panel connecting purline comprises a base plate, a first side plate connected to one side of the base plate and a second side plate connected to the other side of the base plate, and a U-shaped groove is defined by the base plate, the first side plate and the second side plate; the top of the first side plate extends towards one side of the base plate to form a first extension section, the first extension section is folded back towards the U-shaped groove to form a first folded-back section, and the first folded-back section and the first extension section form a first edge locking groove; the top of the second side plate extends towards the other side of the base plate to form a second extending section, the second extending section is folded back towards the U-shaped groove to form a second folded-back section, and the second folded-back section and the second extending section form a second lockrand groove. According to the invention, the stress area of the mounting part is increased, the phenomenon of stress concentration at a certain point or local part is avoided, and the use number of bolts is correspondingly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of solar power generation, and particularly to a photovoltaic panel connecting purlin, a photovoltaic panel installation device and an installation method. Background Art

[0002] Photovoltaic power generation equipment is a device that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. It usually consists of three main parts: a photovoltaic panel, a controller, and an inverter. Among them, the photovoltaic panel is fixed in a place with sufficient sunlight through a photovoltaic installation structure.

[0003] In the prior art, the fixation of the photovoltaic panel is generally to lock it with a support purlin by a bolt fastener group. In order to increase the connection stability, the number of fasteners used for each photovoltaic panel can reach 8 groups, resulting in a high installation cost. At the same time, the bolt connection also causes the bottom edge and the purlin to independently bear all the loads on the photovoltaic module, causing stress concentration at the connection point and being prone to damage. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art, and provide a photovoltaic panel connecting purlin, a photovoltaic panel installation device and an installation method.

[0005] To achieve the above and other purposes, on the one hand, the present invention provides a photovoltaic panel connecting purlin, which includes a base plate, a first side plate connected to one side of the base plate, and a second side plate connected to the other side of the base plate. The base plate, the first side plate and the second side plate enclose a U-shaped groove; the top of the first side plate extends towards the base plate to form a first extended section, the first extended section bends back towards the U-shaped groove to form a first folded section, and the first folded section and the first extended section form a first edge-locking groove; the top of the second side plate extends towards the other side of the base plate to form a second extended section, the second extended section bends back towards the U-shaped groove to form a second folded section, and the second folded section and the second extended section form a second edge-locking groove; wherein, the lengths of the first extended section and the second extended section are greater than or equal to 24 mm and less than or equal to 34 mm, the lengths of the first folded section and the second folded section are greater than or equal to 18 mm and less than or equal to 26 mm; the first extended section and the second extended section are symmetric about the axial center plane of the U-shaped groove; the first folded section and the second folded section are symmetric about the axial center plane of the U-shaped groove.

[0006] By providing the first edge-locking groove and the second edge-locking groove, the photovoltaic panel is cooperatively assembled with the purlin through the first edge-locking groove and the second edge-locking groove, increasing the connection area between the photovoltaic module and the photovoltaic panel connecting purlin, avoiding the occurrence of stress concentration at a certain point or locally, and correspondingly reducing the number of bolts used.

[0007] In one or more embodiments, free edges of the first folding section and the second folding section both extend upward to form guiding inclined surfaces.

[0008] In one or more embodiments, the first extension section, the first folding section, the second extension section, and the second folding section are all arranged along a direction parallel to the substrate.

[0009] In one or more embodiments, reinforcing portions are provided on both the first extension section and the second extension section. The reinforcing portions are in a groove shape and extend along the length direction of the U-shaped groove.

[0010] In one or more embodiments, the reinforcing portions are located outside the first edge-locking groove and the second edge-locking groove and are adjacent to openings of the first edge-locking groove and the second edge-locking groove.

[0011] In one or more embodiments, a first extension section through hole is provided on the first extension section, and a first folding section through hole is provided at a corresponding position on the first folding section;

[0012] A second extension section through hole is provided on the second extension section, and a second folding section through hole is provided at a corresponding position on the second folding section.

[0013] A second aspect of the present invention further provides a photovoltaic panel installation device, including the photovoltaic panel connecting purlin described in the first aspect, and further including a photovoltaic panel frame for installing a photovoltaic panel. The photovoltaic panel frame is connected to the photovoltaic panel connecting purlin. The photovoltaic panel frame includes a support plate. A receiving groove is provided on a first side surface of the support plate, and two clamping plates are provided on a second side surface of the support plate. A clamping plate through hole is provided on the clamping plate; one clamping plate is inserted into the first edge-locking groove on one photovoltaic panel connecting purlin, and the other clamping plate is inserted into the second edge-locking groove on another photovoltaic panel connecting purlin adjacent to one photovoltaic panel connecting purlin; a first fastener that passes through the first extension section through hole, the first folding section through hole, and the clamping plate through hole to fasten the photovoltaic panel frame to one photovoltaic panel connecting purlin; a second fastener that passes through the second extension section through hole, the second folding section through hole, and the clamping plate through hole to fasten the photovoltaic panel frame to another photovoltaic panel connecting purlin; a third fastener and a main bracket, and the third fastener fixes the photovoltaic panel connecting purlin on the main bracket.

[0014] In one or more embodiments, the support plate is a square body. Two opposite edges on the second side surface of the support plate extend downward to form L-shaped plates. The L-shaped plates include vertical sections and horizontal sections connected to the vertical sections. The vertical sections are connected to the support plate, and the horizontal sections form the clamping plates.

[0015] In one or more embodiments, the snap-in plate and the first folded section and the first extended section, or the second folded section and the second extended section are in surface-to-surface cooperation.

[0016] The third aspect of the present invention further provides an installation method for the photovoltaic panel installation device described in the second aspect. The photovoltaic panel is loaded into the accommodation groove of the photovoltaic panel frame, and the accommodation groove is encapsulated by glass to form a photovoltaic panel assembly; the main bracket is fixedly installed; a plurality of photovoltaic panel connecting purlins are installed on the main bracket through fasteners; the photovoltaic panel assembly is placed between two adjacent photovoltaic panel connecting purlins, one snap-in plate is inserted into the first locking groove on one photovoltaic panel connecting purlin, and the other snap-in plate is inserted into the second locking groove on the adjacent other photovoltaic panel connecting purlin; the two snap-in plates are fixedly connected to the corresponding first locking groove or second locking groove through fasteners. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It shows a schematic structural diagram of the first perspective of the photovoltaic panel connecting purlin of the present invention.

[0018] Figure 2 It shows a schematic structural diagram of the second perspective of the photovoltaic panel connecting purlin of the present invention.

[0019] Figure 3 It shows a schematic structural diagram of the connection between the photovoltaic panel connecting purlin and the photovoltaic panel frame of the present invention.

[0020] Figure 4 is Figure 3 a partial enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Please refer to Figures 1 to 4 . The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. It should be noted that many specific details are set forth in the following description to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] Such as Figure 3As shown in the figure, 20 is a photovoltaic panel. The photovoltaic panel installation device of the present invention includes a photovoltaic panel connecting purlin 10 and a photovoltaic panel frame 30 for installing the photovoltaic panel 20. The photovoltaic panel 20 is installed on the photovoltaic panel frame 30, and the photovoltaic panel frame 30 is connected to the photovoltaic panel connecting purlin 10. The photovoltaic panel connecting purlin 10 is provided with a first edge locking groove 104 and a second edge locking groove 105, and the first edge locking groove 104 and the second edge locking groove 105 are used to connect two adjacent photovoltaic panel frames 30. Two adjacent photovoltaic panel frames 30 are respectively connected to the photovoltaic panel connecting purlin 10 through one of the first edge locking groove 104 and the second edge locking groove 105, and so on to realize the installation of all photovoltaic panels 20.

[0023] Specifically, as Figure 1 and 2 shown in the figure, the photovoltaic panel connecting purlin 10 includes a base plate 101, a first side plate 102 connected to one side of the base plate 101, and a second side plate 103 connected to the other side of the base plate 101. The base plate 101, the first side plate 102 and the second side plate 103 enclose a U-shaped groove. The U-shaped groove can be used as a drainage groove. The top of the first side plate 102 extends towards the base plate 101 to form a first extension section 1021, and the first extension section 1021 bends back towards the U-shaped groove to form a first folding section 1023. The first folding section 1023 and the first extension section 1021 form the first edge locking groove 104. The top of the second side plate 103 extends towards the other side of the base plate 101 to form a second extension section 1031, and the second extension section 1031 bends back towards the U-shaped groove to form a second folding section 1033. The second folding section 1033 and the second extension section 1031 form the second edge locking groove 105. It should be noted that in this embodiment, the lengths of the first extension section 1021 and the second extension section 1031 are greater than or equal to 24 mm and less than or equal to 34 mm, and the lengths of the first folding section 1023 and the second folding section 1033 are greater than or equal to 18 mm and less than or equal to 26 mm. The photovoltaic panel connecting purlin 10 designed according to these two data ranges has increased shear strength, is not easily deformed, and at the same time ensures the contact area with the photovoltaic panel, reasonably disperses the stress generated by bolt installation, and ensures the safety and reliability of the equipment.

[0024] In one of the embodiments, the length of the first folding section 1023 is less than or equal to the length of the first extending section 1021, and the length of the second folding section 1033 is less than or equal to the length of the second extending section 1031. Since the length of the first folding section 1023 is less than or equal to the length of the first extending section 1021, and the length of the second folding section 1033 is less than or equal to the length of the second extending section 1031, it is convenient for the photovoltaic panel frame 30 to be smoothly inserted into the first edge-locking groove 104 and the second edge-locking groove 105.

[0025] By providing the first edge-locking groove and the second edge-locking groove, the photovoltaic panel is cooperatively assembled with the purlin through the first edge-locking groove and the second edge-locking groove, increasing the connection area between the photovoltaic module and the purlin for connecting the photovoltaic panel, avoiding the occurrence of stress concentration at a certain point or in a local area, and correspondingly reducing the number of bolts used.

[0026] In this embodiment, the first extending section 1021 and the second extending section 1031 are symmetric about the axial center plane of the U-shaped groove; the first folding section 1023 and the second folding section 1033 are symmetric about the axial center plane of the U-shaped groove, that is, the first edge-locking groove 104 and the second edge-locking groove 105 are symmetric about the axial center plane of the U-shaped groove. Such a setting facilitates the processing and forming of the purlin for connecting the photovoltaic module on the one hand, and on the other hand, due to the symmetric arrangement, the stress conditions on both sides of the purlin for connecting the photovoltaic module are equal, and it is not easy to deform, making the installation of the photovoltaic panel more stable.

[0027] To facilitate the installation of the photovoltaic panel frame 30, the free edges of the first folding section 1023 and the second folding section 1033 both extend upward to form a guiding inclined surface 106. In other embodiments, the first extending section 1021, the first folding section 1023, the second extending section 1031, and the second folding section 1033 are all arranged along a direction parallel to the substrate. To improve the structural strength of the purlin 10 for connecting the photovoltaic panel, reinforcing portions 107 are provided on both the first extending section 1021 and the second extending section 1031. The reinforcing portion 107 is in a groove shape and extends along the length direction of the U-shaped groove. In one of the embodiments, for the convenience of process requirements, the reinforcing portion 107 can be provided outside the first edge-locking groove 104 and the second edge-locking groove 105 and adjacent to the openings of the first edge-locking groove 104 and the second edge-locking groove 105.

[0028] As Figure 3 and 4As shown, the photovoltaic panel frame 30 includes a support plate 301 which is a square body. Four edges of the first side of the support plate 301 extend upward to form L-shaped plates, and the four L-shaped plates enclose the accommodation groove 302. The photovoltaic panel 20 is installed in the accommodation groove 302, and the accommodation groove 302 is encapsulated by glass to protect the photovoltaic panel 20. A clamping plate 303 is arranged on the second side of the support plate 301. When installing the photovoltaic panel 20, the clamping plate 303 is inserted into the first edge locking groove 104 or the second edge locking groove 105 to realize the connection with one of the photovoltaic panel connecting purlins 10.

[0029] Two clamping plates 303 are arranged on the support plate 301. Specifically, L-shaped plates are formed by downward extension of two opposite edges of the second side. The L-shaped plate includes a vertical section and a horizontal section connected to the vertical section. The vertical section is connected to the support plate 301, and the horizontal section forms the clamping plate 303. The clamping plate 303 is provided with a through hole of the clamping plate 303. As Figure 3 shown, the photovoltaic panel frame 30 is installed between two adjacent photovoltaic panel connecting purlins 10 through the two clamping plates 303. One clamping plate 303 is inserted into the first edge locking groove 104 of one of the photovoltaic panel connecting purlins 10, and is in surface-to-surface fit with both the first extended section 1021 and the first folded section 1023; the other clamping plate 303 is inserted into the second edge locking groove 105 of another photovoltaic panel connecting purlin 10 adjacent to one of the photovoltaic panel connecting purlins 10, and is in surface-to-surface fit with both the second extended section 1031 and the second folded section 1033. In other embodiments, in order to improve the installation flexibility, four clamping plates 303 are arranged on the support plate 301, that is, four clamping plates 303 are formed by downward extension of four edges of the second side, and installation can be realized through any two oppositely arranged clamping plates 303.

[0030] Through surface-to-surface fit, the stress-bearing area of the installation part is increased, avoiding the occurrence of stress concentration at a certain point or in a local area. At the same time, all loads on the photovoltaic module are jointly borne by the photovoltaic panel frame 30 and the photovoltaic panel connecting purlin 10, instead of each independently bearing all loads on the photovoltaic module in the prior art. Therefore, the safety and service life of the photovoltaic module are improved. In addition, due to the adoption of surface contact fit for installation, the installation stability is improved, and the number of bolts used is correspondingly reduced.

[0031] To further improve the firmness of the connection, a first extension section through hole 1022 is provided on the first extension section 1021, a first folding section through hole 1024 is provided at the corresponding position on the first folding section 1023, a second extension section through hole 1032 is provided on the second extension section 1031, and a second folding section through hole 1034 is provided at the corresponding position on the second folding section 1033. A first fastener 40 passes through the first extension section through hole 1022, the first folding section through hole 1024, and the through hole of the clamping plate 303 to fasten the photovoltaic panel frame 30 and one of the photovoltaic panel connecting purlins 10. A second fastener 50 passes through the second extension section through hole 1032, the second folding section through hole 1034, and the through hole of the clamping plate 303 to fasten the photovoltaic panel frame 30 and another adjacent photovoltaic panel connecting purlin 10.

[0032] The clamping plate 303 is pressed and fitted between the first extension section 1021 and the first folding section 1023 or the second extension section 1031 and the second folding section 1033 through the first fastener 40 or the second fastener 50, so that the clamping plate 303 fits more closely with the first extension section 1021, the first folding section 1023, or with the second extension section 1031 and the second folding section 1033, and the force is more evenly distributed.

[0033] Furthermore, to install the photovoltaic panel installation device on the roof or the surface of other objects that require solar power generation, a main bracket 60 can be installed on the roof or the surface of the object first. A backing plate is installed on the substrate 101, and through holes communicating with each other are provided on the backing plate and the substrate 101. The substrate 101 is installed on the main bracket by passing a U-shaped bolt through the through holes communicating with each other on the backing plate and the substrate 101. After connecting the circuit, the photovoltaic panel can realize the power generation and power supply work.

[0034] The present invention also provides an installation method for a photovoltaic panel installation device. The photovoltaic panel installation device is the above-mentioned photovoltaic panel installation device, and specifically includes the following steps:

[0035] Place the photovoltaic panel into the accommodation groove of the photovoltaic panel frame, and encapsulate the accommodation groove with glass to form a photovoltaic panel assembly;

[0036] Fix and install the main bracket;

[0037] Install a plurality of photovoltaic panel connecting purlins on the main bracket through fasteners;

[0038] Place the photovoltaic panel assembly between two adjacent photovoltaic panel connecting purlins, insert one clamping plate into the first locking groove on one photovoltaic panel connecting purlin, and insert the other clamping plate into the second locking groove on another photovoltaic panel connecting purlin adjacent to one photovoltaic panel connecting purlin;

[0039] Both of the two snap - connecting plates are fixedly connected in the corresponding first edge - locking groove or the second edge - locking groove through fasteners. Then, the remaining photovoltaic panel components are connected in sequence to complete the installation work of all photovoltaic panels.

[0040] Finally, it should be noted that: the above - mentioned embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A photovoltaic panel connecting purlin, characterized in that, It includes a substrate, a first side plate connected to one side of the substrate, and a second side plate connected to the other side of the substrate. The substrate, the first side plate, and the second side plate enclose a U-shaped groove. The top of the first side plate extends towards one side of the substrate to form a first extended section. The first extended section bends back towards the U-shaped groove to form a first folded section. The first folded section and the first extended section form a first edge-locking groove. The top of the second side plate extends towards the other side of the substrate to form a second extended section. The second extended section bends back towards the U-shaped groove to form a second folded section. The second folded section and the second extended section form a second edge-locking groove. Wherein, the lengths of the first extended section and the second extended section are greater than or equal to 24 mm and less than or equal to 34 mm, and the lengths of the first folded section and the second folded section are greater than or equal to 18 mm and less than or equal to 26 mm. The first extended section and the second extended section are symmetric about the axial center plane of the U-shaped groove. The first folded section and the second folded section are symmetric about the axial center plane of the U-shaped groove.

2. The photovoltaic panel connecting purlin according to claim 1, wherein The free ends of the first folded section and the second folded section both extend upward to form guiding inclined surfaces.

3. A photovoltaic panel connecting purlin according to claim 1, characterized in that, The first extended section, the first folded section, the second extended section, and the first folded section are all arranged along a direction parallel to the substrate.

4. A photovoltaic panel connecting purlin according to claim 1, characterized in that, Reinforcing parts extending along the length direction of the U-shaped groove are provided on both the first extended section and the second extended section. The reinforcing parts are in the shape of grooves.

5. A photovoltaic panel connecting purlin according to claim 3, characterized in that, The reinforcing parts are located outside the first edge-locking groove and the second edge-locking groove, adjacent to the openings of the first edge-locking groove and the second edge-locking groove.

6. A photovoltaic panel connecting purlin according to any one of claims 1-5, characterized in that, A first extended section through hole is provided on the first extended section, and a first folded section through hole is provided at the corresponding position on the first folded section. A second extended section through hole is provided on the second extended section, and a second folded section through hole is provided at the corresponding position on the second folded section.

7. A photovoltaic panel installation device, comprising the photovoltaic panel connecting purlin according to any one of claims 1-6, characterized in that, It further includes a photovoltaic panel frame for installing a photovoltaic panel. The photovoltaic panel frame is connected to a photovoltaic panel connecting purlin. The photovoltaic panel frame includes a support plate. A receiving groove is provided on the first side surface of the support plate, and two clamping plates are provided on the second side surface of the support plate. Clamping plate through holes are provided on the clamping plates. One clamping plate is inserted into the first edge-locking groove on one photovoltaic panel connecting purlin, and the other clamping plate is inserted into the second edge-locking groove on another photovoltaic panel connecting purlin adjacent to one photovoltaic panel connecting purlin. A first fastener that passes through the first extended section through hole, the first folded section through hole, and the clamping plate through hole to fasten the photovoltaic panel frame to one photovoltaic panel connecting purlin. A second fastener that passes through the second extended section through hole, the second folded section through hole, and the clamping plate through hole to fasten the photovoltaic panel frame to another photovoltaic panel connecting purlin. A third fastener and a main bracket. The third fastener fixes the photovoltaic panel connecting purlin on the main bracket.

8. A photovoltaic panel installation device according to claim 7, characterized in that, The support plate is a square body. Two edges opposite to the second side of the support plate extend downward to form L-shaped plates. Each L-shaped plate includes a vertical section and a horizontal section connected to the vertical section. The vertical section is connected to the support plate, and the horizontal section forms a clamping plate.

9. A photovoltaic panel installation device according to claim 7, characterized in that, The clamping plate and the first folding section and the first extension section, or the second folding section and the second extension section are in surface-to-surface fit.

10. The installation method of a photovoltaic panel installation device according to any one of claims 7 to 9, characterized in that: Install the photovoltaic panel into the accommodation groove of the photovoltaic panel frame, and encapsulate the accommodation groove through glass to form a photovoltaic panel assembly; Fix and install the main bracket; Install a plurality of photovoltaic panel connecting purlins on the main bracket through fasteners; Place the photovoltaic panel assembly between two adjacent photovoltaic panel connecting purlins. One clamping plate is inserted into the first locking edge groove on one photovoltaic panel connecting purlin, and the other clamping plate is inserted into the second locking edge groove on the adjacent other photovoltaic panel connecting purlin; Fix and connect both clamping plates in the corresponding first locking edge groove or second locking edge groove through fasteners.

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