Photovoltaic module mounting and fastening structure

Abstract

The utility model relates to the technical field of photovoltaic modules, in particular to a photovoltaic module mounting and fastening structure which comprises a limiting plate and a fastening module, one end of the limiting plate is provided with a clamping protrusion, the other end of the limiting plate is provided with a clamping groove, and the two ends of the limiting plate extend towards each other and are connected end to end through the clamping protrusion and the clamping groove. And a limiting bulge is arranged on the limiting plate. After the photovoltaic assembly is placed in place, the frame of the photovoltaic assembly is pressed on the limiting plate through the fastening assembly, and the frame can be limited through the limiting protrusion so as to prevent the frame from being separated from the fastening assembly. Compared with a single-layer limiting plate structure, the limiting plate is of a double-layer plate structure, on one hand, the bearing capacity in the direction perpendicular to the limiting plate can be increased, and on the other hand, due to the clamping effect of the clamping protrusions and the clamping grooves, the lateral bearing capacity of the limiting plate can be enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module technical field especially relates to a photovoltaic module mounting fastening structure. BACKGROUND

[0002] At present, the installation mode of photovoltaic module mainly adopts pressing block or bolt, for example, the frame of two adjacent photovoltaic modules is pressed by pressing block, and the pressing block installation mode has the problem that the photovoltaic module slips from the pressing block, in order to improve the stability of connection, at present, mainly through increasing the thickness of glass or frame of photovoltaic module, increasing fastening point etc., but these modes will increase material and labor cost, thereby leading to the overall cost increase.

[0003] Therefore, how to provide a kind of photovoltaic module installation fastening structure with simple structure and can guarantee installation stability is the technical problem of the technical personnel in the prior art to be solved urgently. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of photovoltaic module installation fastening structure, can effectively reduce the installation cost of photovoltaic module and guarantee the installation stability of photovoltaic module.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of photovoltaic module installation fastening structure, comprising: limit board and fastening component, one end of the limit board is equipped with the joint protrusion, the other end is equipped with joint recess, the two ends of the limit board respectively extend towards each other, and are connected by the joint protrusion and the joint recess, limit protrusion is equipped on the limit board, the fastening component is used to press the frame of photovoltaic module on the limit board, and the limit protrusion is used to limit the frame.

[0007] In some embodiments, the bottom of the limit board is provided with a positioning plate, the limit board is used to be placed on the crossbeam, and the positioning plate is used to contact with the outer side wall of the crossbeam to limit the relative position of the limit board and the crossbeam.

[0008] In some embodiments, the bottom of the limit board is provided with at least a pair of the positioning plate, and the positioning plate is clamped on the two sides of the crossbeam.

[0009] In some embodiments, the limit board is made of steel plate.

[0010] In some embodiments, the joint protrusion is a protruding structure with gradually increasing width from the root to the tip, and the joint recess is a recess structure with gradually decreasing slot width from inside to outside.

[0011] In some embodiments, the joint protrusion is a dovetail protrusion, and the joint recess is a dovetail recess.

[0012] In some embodiments, the two ends of the limiting plate are connected head to tail to form an upper flat plate and a lower flat plate, the two sides of the upper flat plate are respectively provided with one limiting protrusion, the cross section of the limiting protrusion is a right triangle, and the opposite sides of the two limiting protrusions are both perpendicular to the upper flat plate.

[0013] In some embodiments, the limiting protrusion is a structure formed by bending the limiting plate.

[0014] In some embodiments, the fastening assembly comprises a pressing block, a U-shaped bolt, a baffle and a nut, the pressing block is pressed on the frame of the photovoltaic module, the U-shaped bolt is arranged through the pressing block and the limiting plate and across the beam, the baffle is arranged below the beam and connected to the U-shaped bolt, and the nut is connected to the U-shaped bolt to fix the pressing block and press the frame of the photovoltaic module on the limiting plate.

[0015] In some embodiments, the cross section of the pressing block is T-shaped, the pressing block comprises wing plates on both sides of the upper part and a connecting block at the lower part, the wing plates are used to press on the two adjacent frames, the connecting block is arranged in the spacing space between the two adjacent frames, and a through hole extending along the length direction of the spacing space is arranged in the connecting block.

[0016] Compared with the prior art, the above technical scheme has the following advantages:

[0017] The photovoltaic module mounting and fastening structure comprises a limiting plate and a fastening assembly, one end of the limiting plate is provided with a clamping protrusion, the other end is provided with a clamping groove, the two ends of the limiting plate extend towards each other, and are connected head to tail through the clamping protrusion and the clamping groove. The limiting plate is provided with a limiting protrusion, the photovoltaic module is placed on the limiting plate during assembly, the contact area of the back of the frame of the photovoltaic module and the limiting plate can be increased through the limiting plate, and stress concentration of the frame of the photovoltaic module when bearing load can be reduced. After the photovoltaic module is placed in place, the frame of the photovoltaic module is pressed on the limiting plate through the fastening assembly. Compared with the single-layer limiting plate structure, the limiting plate of the utility model is a double-layer plate structure, which can increase the bearing capacity perpendicular to the limiting plate on the one hand, and can enhance the lateral bearing capacity of the limiting plate on the other hand due to the clamping effect of the clamping protrusion and the clamping groove. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the provided drawings without creative labor.

[0019] Figure 1 A structure schematic view of the photovoltaic module mounting and fastening structure provided by the embodiment of the present application when being mounted on a photovoltaic module is shown in the figure.

[0020] Figure 2 A partial structure schematic view of the photovoltaic module mounting and fastening structure provided by the embodiment of the present application when being mounted on a photovoltaic module is shown in the figure.

[0021] Figure 3 A structure schematic view of the photovoltaic module mounting and fastening structure provided by the embodiment of the present application when being mounted on a photovoltaic module is shown in the figure.

[0022] Figure 4 A structure schematic view of the photovoltaic module mounting and fastening structure provided by the embodiment of the present application when being mounted on a photovoltaic module is shown in the figure.

[0023] Figure 5 A structure schematic view of the limiting plate of the photovoltaic module mounting and fastening structure provided by the embodiment of the present application is shown in the figure.

[0024] The reference signs are as follows:

[0025] 10-photovoltaic module, 11-frame;

[0026] 20-cross beam;

[0027] 30-fastening structure, 31-limiting plate, 3101-upper flat plate, 3102-lower flat plate, 311-clamping protrusion, 312-clamping groove, 313-limiting protrusion, 314-positioning plate, 32-fastening assembly, 321-pressing block, 3211-wing plate, 3212-connecting block, 3213-through hole, 322-U-shaped bolt, 323-baffle, 324-nut, 325-flat washer, 326-spring washer. EMBODIMENT

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0029] Please refer to Figures 1 to 5 .

[0030] The fastening structure 30 comprises a limiting plate 31 and a fastening assembly 32. One end of the limiting plate 31 is provided with a clamping protrusion 311, and the other end is provided with a clamping groove 312. The clamping protrusion 311 and the clamping groove 312 are preferably provided at the two ends of the limiting plate 31 by means of integral molding. For example, the clamping protrusion 311 and the clamping groove 312 can be formed by cutting. The two ends of the limiting plate 31 extend towards each other, and are connected head to tail by the clamping protrusion 311 and the clamping groove 312. For example, the two ends of the limiting plate 31 are bent downward, and then horizontally bent. The two ends can be clamped by the clamping protrusion 311 and the clamping groove 312. The limiting plate 31 is provided with a limiting protrusion 313. When assembling, the photovoltaic module 10 is placed on the limiting plate 31. The limiting plate 31 can increase the contact area between the back of the frame 11 of the photovoltaic module 10 and the limiting plate 31, and can reduce the stress concentration of the frame 11 of the photovoltaic module 10 when bearing load. There is a certain gap between the frame 11 of the photovoltaic module 10 and the limiting protrusion 313. When the photovoltaic module 10 bears a certain load, the frame 11 is in contact with the limiting protrusion 313 to limit the sliding of the frame 11, thereby improving the installation stability of the photovoltaic module 10. After the photovoltaic module 10 is placed in place, the frame 11 of the photovoltaic module 10 is pressed on the limiting plate 31 by the fastening assembly 32. The limiting protrusion 313 can limit the frame 11 to prevent the frame 11 from being separated from the fastening assembly 32. Compared with the single-layer limiting plate 31 structure, the limiting plate 31 of the present application is a double-layer plate structure. On the one hand, it can increase the bearing capacity perpendicular to the limiting plate 31. On the other hand, due to the clamping action of the clamping protrusion 311 and the clamping groove 312, the lateral bearing capacity of the limiting plate 31 can be enhanced.

[0031] In some embodiments, as shown in Figure 3 , the bottom of the limiting plate 31 is provided with a positioning plate 314. The number of the positioning plate 314 is preferably multiple. When installing, the limiting plate 31 is placed on the cross beam 20. The positioning plate 314 is in contact with the outer side wall of the cross beam 20 to limit the relative position of the limiting plate 31 and the cross beam 20, thereby facilitating the installation of the limiting plate 31.

[0032] In some embodiments, as shown in Figure 3 The bottom of the limiting plate 31 is provided with at least one pair of positioning plates 314, which can be folded downward by the structure on the limiting plate 31. For example, a square plate can be cut on the limiting plate 31, and the square plate is bent downward to form the structure of the positioning plate 314. Each pair of positioning plates 314 is clamped on both sides of the cross beam 20. For example, two pairs of positioning plates 314 are arranged on the bottom of the limiting plate 31. The positioning plates 314 on both sides can effectively improve the convenience of installing the limiting plate 31 on the cross beam 20. One pair of positioning plates 314 is arranged on the limiting plate 31 near the clamping protrusion 311, and the other pair of positioning plates 314 is arranged on the limiting plate 31 near the clamping groove 312.

[0033] In some embodiments, the limiting plate 31 is preferably made of a steel plate, and the limiting protrusion 313 and the positioning plate 314 are formed by bending the structure on the limiting plate 31. Compared with the traditional aluminum structure, the material cost can be reduced. In addition, the limiting plate 31 can be processed by cutting, hole opening and bending process. The cutting and hole opening can be processed in large quantities at the same time, and the bending speed is better than that of aluminum cutting. Therefore, the processing cost is lower. When the photovoltaic module 10 located at the edge needs to be installed, only one limiting protrusion 313 can be arranged on the limiting plate 31.

[0034] In some embodiments, as shown in Figure 3 The clamping protrusion 311 is a protrusion structure with gradually increasing width from the root to the tip, and the clamping groove 312 is a groove structure with gradually decreasing width from the inside to the outside. The clamping protrusion 311 and the clamping groove 312 can prevent the limiting plate 31 from falling off. The clamping protrusion 311 is preferably a dovetail protrusion, and the clamping groove 312 is preferably a dovetail groove. In addition, the clamping protrusion 311 and the clamping groove 312 can also select other structures, such as T-shaped protrusion and T-shaped groove.

[0035] In some embodiments, as shown in Figure 4 The two ends of the limiting plate 31 are connected to form an upper flat plate 3101 and a lower flat plate 3102. The two sides of the upper flat plate 3101 are respectively provided with a limiting protrusion 313. The cross section of the limiting protrusion 313 is a right triangle, and the opposite sides of the two limiting protrusions 313 are perpendicular to the upper flat plate 3101. The structure of the right triangle limiting protrusion 313 can effectively improve the lateral bearing capacity of the photovoltaic module 10. The limiting protrusion 313 is preferably a bending structure of the limiting plate 31 to ensure the structural strength and reduce the manufacturing cost.

[0036] In some embodiments, as shown in Figure 3As shown, the fastening assembly 32 comprises a pressing block 321, a U-shaped bolt 322, a baffle 323 and a nut 324, the pressing block 321, the limiting plate 31 and the baffle 323 are respectively provided with connecting holes, when installing, the photovoltaic module 10 is placed on the limiting plate 31, then the pressing block 321 is pressed on the frame 11 of the photovoltaic module 10, the U-shaped bolt 322 is arranged on the pressing block 321 and the limiting plate 31 and crosses the beam 20, the baffle 323 is below the beam 20 and is connected to the U-shaped bolt 322, the nut 324 is connected to the U-shaped bolt 322 to fix the pressing block 321 and press the frame 11 of the photovoltaic module 10 on the limiting plate 31, wherein in order to improve the connection stability of the nut 324, flat washers 325 and spring washers 326 can be arranged between the nut 324 and the baffle 323.

[0037] In some embodiments, as Figures 2-4 As shown, the cross section of the pressing block 321 is T-shaped, the pressing block 321 comprises wing plates 3211 on both sides of the upper part and a connecting block 3212 at the lower part, the wing plates 3211 are used to press on the adjacent two frames 11, the connecting block 3212 is located in the spacing space between the adjacent two frames 11, the connecting block 3212 is provided with a through hole 3213 extending along the length direction of the spacing space, the cross section of the through hole can be circular or square, etc., wherein the through hole 3213 can play a role in weight reduction, and also can play a role in water flow channel, for example, the rainwater in the spacing space can be drained through the through hole to avoid the accumulation of rainwater in the spacing space.

[0038] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0039] The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0040] The photovoltaic module installation fastening structure provided by the present application is described in detail above. In this paper, the principle and implementation mode of the present application are described by applying specific examples, and the description of the above embodiments is only used to help understand the core idea of the present application. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A photovoltaic module mounting and fastening structure, characterized in that, include: The limiting plate (31) and the fastening assembly (32) are provided. One end of the limiting plate (31) is provided with a snap-fit ​​protrusion (311) and the other end is provided with a snap-fit ​​groove (312). The two ends of the limiting plate (31) extend toward each other and are connected end to end by the snap-fit ​​protrusion (311) and the snap-fit ​​groove (312). The limiting plate (31) is provided with a limiting protrusion (313). The fastening assembly (32) is used to press the frame (11) of the photovoltaic module (10) onto the limiting plate (31). The limiting protrusion (313) is used to limit the frame (11).

2. The photovoltaic module mounting and fastening structure according to claim 1, characterized in that, The bottom of the limiting plate (31) is provided with a positioning plate (314). The limiting plate (31) is used to be placed on the crossbeam (20). The positioning plate (314) is in contact with the outer wall of the crossbeam (20) to limit the relative position of the limiting plate (31) and the crossbeam (20).

3. The photovoltaic module mounting and fastening structure according to claim 2, characterized in that, The bottom of the limiting plate (31) is provided with at least one pair of positioning plates (314), which are used to clamp the two sides of the crossbeam (20).

4. The photovoltaic module mounting and fastening structure according to claim 2, characterized in that, The limiting plate (31) is made of steel plate.

5. The photovoltaic module mounting and fastening structure according to claim 1, characterized in that, The snap-fit ​​protrusion (311) is a protrusion structure whose width gradually increases from the root to the end, and the snap-fit ​​groove (312) is a groove structure whose groove width gradually decreases from the inside to the outside.

6. The photovoltaic module mounting and fastening structure according to claim 5, characterized in that, The snap-fit ​​protrusion (311) is a dovetail protrusion, and the snap-fit ​​groove (312) is a dovetail groove.

7. The photovoltaic module mounting and fastening structure according to claim 1, characterized in that, The two ends of the limiting plate (31) are connected to form an upper plate (3101) and a lower plate (3102). The upper plate (3101) has a limiting protrusion (313) on each side. The cross-section of the limiting protrusion (313) is a right triangle. The opposite sides of the two limiting protrusions (313) are perpendicular to the upper plate (3101).

8. The photovoltaic module mounting and fastening structure according to any one of claims 1 to 7, characterized in that, The fastening assembly (32) includes a pressure block (321), a U-bolt (322), a baffle (323), and a nut (324). The pressure block (321) is pressed onto the frame (11) of the photovoltaic module (10). The U-bolt (322) passes through the pressure block (321) and the limiting plate (31) and spans across the crossbeam (20). The baffle (323) is located below the crossbeam (20) and is connected to the U-bolt (322). The nut (324) is connected to the U-bolt (322) to fix the pressure block (321) and press the frame (11) of the photovoltaic module (10) onto the limiting plate (31).

9. The photovoltaic module mounting and fastening structure according to claim 8, characterized in that, The cross-section of the pressure block (321) is T-shaped. The pressure block (321) includes wing plates (3211) located on both sides of its upper part and a connecting block (3212) located at its lower part. The wing plates (3211) are used to press against two adjacent frame plates (11). The connecting block (3212) is located in the space between two adjacent frame plates (11). The connecting block (3212) is provided with a through hole (3213) extending along the length direction of the space.

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