Photovoltaic grounding system

Abstract

A photovoltaic grounding system comprises photovoltaic modules and a metal support fixed below the photovoltaic modules, the metal support comprises cross beams extending transversely, the number of the photovoltaic modules is M * N, M and N are natural numbers, the photovoltaic modules are arranged in a matrix of M rows and N columns, N photovoltaic modules in each row are arranged left and right in the transverse direction, and N is a natural number. The M photovoltaic modules in each column are arranged front and back in the longitudinal direction perpendicular to the transverse direction; the N photovoltaic assemblies in each row are fixedly connected into a whole through the cross beams, and each cross beam is provided with a main body supporting part located below each photovoltaic assembly in the row and a plurality of bridging parts integrally extending between two adjacent photovoltaic assemblies from the main body supporting part. And a grounding component is arranged at the position of each bridging part. The photovoltaic grounding system provided by the utility model has stability and can provide favorable guarantee for PV (photovoltaic) power generation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a photovoltaic grounding system and belongs to the photovoltaic technical field. BACKGROUND

[0002] PV is the abbreviation of "Photovoltaic", which represents a technology that uses solar energy to generate electricity. Photovoltaic technology converts solar energy into electrical energy through the photoelectric effect, has the advantages of environmental protection, renewable energy, etc., and is one of the important directions of future energy development. The stability of the photovoltaic grounding system is a red line for protecting workers and roof photovoltaic assets. Once this red line is stepped on, i.e., the stability of the photovoltaic grounding system cannot be guaranteed, and once an extreme situation is encountered, there will be a loss of personnel or photovoltaic equipment assets. Therefore, in the process of converting solar energy into electrical energy by each photovoltaic module, it is necessary to consider how to ground to ensure the stability of the photovoltaic grounding system. SUMMARY

[0003] The utility model aims at providing a photovoltaic grounding system, which has stability and can provide favorable guarantee for PV (photovoltaic) power generation.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a photovoltaic grounding system, which comprises a photovoltaic module and a metal support fixed below the photovoltaic module, the metal support comprises a transversely extending crossbeam, the photovoltaic module is M*N, M and N are natural numbers, the photovoltaic module is arranged in the form of a matrix of M rows and N columns, N photovoltaic modules in each row are arranged left and right in the transverse direction, and M photovoltaic modules in each column are arranged front and back in the longitudinal direction perpendicular to the transverse direction; the N photovoltaic modules in each row are fixedly connected as a whole by the crossbeam, the crossbeam has a main support part located below each photovoltaic module in the row and a plurality of bridging parts integrally extended between adjacent two photovoltaic modules from the main support part, and each bridging part is provided with a grounding component.

[0005] As a further improved technical scheme of the utility model, the grounding component is a grounding sheet, the grounding sheet has a positioning part located on the bottom surface and a piercing part located on the top surface and on both sides of the positioning part, the grounding sheet is welded with the bridging part at the position of the positioning part, and the grounding sheet pierces the frame of adjacent two photovoltaic modules through the piercing part to conduct the photovoltaic module and the crossbeam to ground.

[0006] As a further improved technical scheme of the present utility model, the grounding component is a grounding cable, the bridging portion is provided with a grounding hole, the frames of two adjacent photovoltaic modules are provided with grounding holes respectively, the grounding cable passes through the grounding hole and is assembled into the two grounding holes respectively, thereby grounding the photovoltaic module and the cross beam.

[0007] As a further improved technical scheme of the present utility model, the opposite ends of the cross beam are provided with a first grounding hole and a second grounding hole respectively, the two opposite photovoltaic modules in each row are provided with a first grounding hole and a second grounding hole respectively, the first grounding hole is arranged corresponding to the first grounding hole, the second grounding hole is arranged corresponding to the second grounding hole, and the first grounding hole and the corresponding grounding hole are electrically connected.

[0008] As a further improved technical scheme of the present utility model, the opposite ends of the cross beam are provided with a first grounding hole and a second grounding hole respectively, the two opposite photovoltaic modules in each row are provided with a first grounding hole and a second grounding hole respectively, the first grounding hole is arranged corresponding to the first grounding hole, the second grounding hole is arranged corresponding to the second grounding hole, and the first grounding hole and the corresponding grounding hole are electrically connected.

[0009] As a further improved technical scheme of the present utility model, the opposite ends of the cross beam are provided with a first grounding hole and a second grounding hole respectively, the two opposite photovoltaic modules in each row are provided with a first grounding hole and a second grounding hole respectively, the first grounding hole is arranged corresponding to the first grounding hole, the second grounding hole is arranged corresponding to the second grounding hole, and the first grounding hole and the corresponding grounding hole are electrically connected.

[0010] As a further improved technical scheme of the present utility model, the opposite ends of the cross beam are provided with a first grounding hole and a second grounding hole respectively, the two opposite photovoltaic modules in each row are provided with a first grounding hole and a second grounding hole respectively, the first grounding hole is arranged corresponding to the first grounding hole, the second grounding hole is arranged corresponding to the second grounding hole, and the first grounding hole and the corresponding grounding hole are electrically connected.

[0011] As a further improved technical scheme of the present utility model, the opposite ends of the cross beam are provided with a first grounding hole and a second grounding hole respectively, the two opposite photovoltaic modules in each row are provided with a first grounding hole and a second grounding hole respectively, the first grounding hole is arranged corresponding to the first grounding hole, the second grounding hole is arranged corresponding to the second grounding hole, and the first grounding hole and the corresponding grounding hole are electrically connected.

[0012] As a further improved technical scheme of the present utility model, the opposite ends of the cross beam are provided with a first grounding hole and a second grounding hole respectively, the two opposite photovoltaic modules in each row are provided with a first grounding hole and a second grounding hole respectively, the first grounding hole is arranged corresponding to the first grounding hole, the second grounding hole is arranged corresponding to the second grounding hole, and the first grounding hole and the corresponding grounding hole are electrically connected.

[0013] As a further improved technical scheme of the present utility model, the opposite ends of the cross beam are provided with a first grounding hole and a second grounding hole respectively, the two opposite photovoltaic modules in each row are provided with a first grounding hole and a second grounding hole respectively, the first grounding hole is arranged corresponding to the first grounding hole, the second grounding hole is arranged corresponding to the second grounding hole, and the first grounding hole and the corresponding grounding hole are electrically connected.

[0014] Compared with the prior art, the utility model discloses the effect of grounding is realized through the mode that the metal support fixed below the photovoltaic module, the metal support includes the multiple bridging portions of setting between the adjacent two photovoltaic modules on the cross beam extending and the position of each bridging portion is equipped with the grounding component, the photovoltaic grounding system has stability and can provide the advantageous guarantee of PV (photovoltaic) power generation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of one embodiment of the utility model photovoltaic grounding system;

[0016] Figure 2 It is Figure 1 The enlarged view of A part in it;

[0017] Figure 3 It is the partial top view of one embodiment of the utility model photovoltaic grounding system;

[0018] Figure 4 It is Figure 3 The enlarged view of B part in it;

[0019] Figure 5 It is Figure 3 The enlarged view of C part in it;

[0020] Figure 6 It is the structure schematic diagram of one embodiment of the utility model photovoltaic grounding system;

[0021] Figure 7 It is Figure 6 The enlarged view of D part in it;

[0022] Figure 8 It is the structure schematic diagram of another embodiment of the utility model photovoltaic grounding system;

[0023] Figure 9 It is Figure 8 The enlarged view of E part in it;

[0024] Figure 10 It is the top view of one embodiment of the utility model photovoltaic grounding system;

[0025] Figure 11 It is Figure 10 The enlarged view of F part in it;

[0026] Figure 12 It is the structure schematic diagram of the metal support in the utility model photovoltaic grounding system. DETAILED DESCRIPTION

[0027] The exemplary embodiments of this application will be described in detail below with reference to the attached drawings. If there are several embodiments, the features in these embodiments can be combined with each other when there is no conflict. When the description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise specified. The description in the following exemplary embodiments does not represent all the embodiments consistent with this application; rather, they are merely examples of devices, products and / or methods consistent with some aspects of this application as recited in the claims of this application.

[0028] The terms used in this application are merely for the purpose of describing the embodiments, and are not intended to limit the scope of protection of this application. The singular forms "a", "an" and "the" as used in the specification and claims of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should be understood that the terms "first", "second" and similar terms used in the specification and claims of this application do not represent any order, number or importance, but are merely used to distinguish the features. Similarly, "one" or "a" and similar terms do not represent a quantity limitation, but represent the existence of at least one. Unless otherwise specified, the terms "before", "after", "left", "right", "up", "down" and similar terms appearing in this application are merely for the purpose of illustration, and are not limited to a specific position or a spatial orientation. The terms "include" or "contain" and similar terms are an open-ended expression, meaning that the elements appearing before "include" or "contain" cover the elements appearing after "include" or "contain" and their equivalents, which does not exclude the possibility that the elements appearing before "include" or "contain" can also contain other elements. If "several" appears in this application, it means two or more.

[0030] Please refer to Figures 1 to 12As shown, the utility model discloses a photovoltaic grounding system, it includes photovoltaic module 100 and the metal support 1 fixed below the photovoltaic module 100. The metal support 1 includes the transverse beam 11 of lateral extension, the photovoltaic module 100 is M * N, M and N are natural number, the photovoltaic module 100 is M row and N column matrix setting. The N of each row photovoltaic module 100 is left and right setting in the transverse, the M of each column photovoltaic module 100 is front and rear setting in the longitudinal perpendicular with the transverse. The N of each row photovoltaic module 100 is fixedly connected as an organic whole through the transverse beam 11, the transverse beam 11 has the main body support part 111 located below each photovoltaic module 100 in the row and the multiple bridging portion 112 of the integral extension between adjacent two photovoltaic modules 100 from the main body support part 111, the position of each bridging portion 112 is equipped with grounding component 2. The utility model discloses the metal support 1 fixed below the photovoltaic module 100, the metal support 1 includes the transverse beam 11 of lateral extension and is provided with the multiple bridging portion 112 between adjacent two photovoltaic modules 100 and the position of each bridging portion 112 is equipped with grounding component 2's mode and realizes the effect of grounding, and the photovoltaic grounding system has stability, can provide the advantageous guarantee of PV (photovoltaic) power generation.

[0031] Please refer to Figures 3 to 7 As shown, the grounding component 2 embodiment one is ground sheet 21. The ground sheet 21 has the positioning part 211 located bottom surface and the puncture part 212 located top surface and both sides of the positioning part 211, and the ground sheet 21 is welded in the positioning part 211 at. The ground sheet 21 punctures the frame of adjacent two photovoltaic modules 100 through the puncture part 212 respectively and makes the photovoltaic module 100 and the transverse beam 11 conductive grounding. The series grounding of adjacent two photovoltaic modules 100 is realized through the ground sheet 21, so that the operator only needs to ensure the interval between two photovoltaic modules 100, installs two photovoltaic modules 100 to the left and right positions of ground sheet 21 correspondingly, and presses puncture, and the operation process is convenient.

[0032] Please refer to Figure 8 And Figure 9As shown, the grounding component 2 is a grounding cable 22, the bridge 112 is provided with a grounding hole 10, the frames of the two adjacent photovoltaic modules 100 are provided with grounding holes 110, the grounding cable 22 passes through the grounding hole 10 and is assembled into the two adjacent grounding holes 110 at both ends to conduct the photovoltaic module 100 and the cross beam 11. The series connection of the two adjacent photovoltaic modules 100 is realized by the grounding cable 22, and welding or other assembly operations are required at the interval position between the two photovoltaic modules 100. The method is slightly more complicated than the above-mentioned grounding sheet 21, but it is still widely used in the industry due to its low cost.

[0033] In Figure 9 In the specific embodiment shown, the bridge 112 at the interval position between the two adjacent photovoltaic modules 100 is provided with one grounding hole 10, and the two photovoltaic modules 100 on the left and right sides are assembled into the same grounding hole 10 to realize grounding. In other embodiments not shown, the bridge 112 at the interval position between the two adjacent photovoltaic modules 100 can also be provided with two grounding holes 10, and the two photovoltaic modules 100 on the left and right sides are respectively assembled into two different grounding holes 10 to realize grounding. It is only necessary to ensure that the interval between the two adjacent photovoltaic modules 100 is large enough to facilitate personnel operation.

[0034] Please refer to Figure 10 and Figure 11 As shown, the opposite ends of the cross beam 11 are respectively provided with a first grounding hole 101 and a second grounding hole 102, and the two opposite photovoltaic modules 100 in each row are respectively provided with a first grounding hole 1101 and a second grounding hole 1102. The first grounding hole 101 is arranged corresponding to the first grounding hole 1101, and the second grounding hole 102 is arranged corresponding to the second grounding hole 1102. The electrical connection between each grounding hole 10 and its corresponding grounding hole 110. Please refer to Figures 1 to 12 As shown, the electrical connection between the opposite ends of the cross beam 11 usually adopts a method that also includes a grounding cable 22, and each grounding hole 10 and its corresponding grounding hole 110 are connected by the grounding cable 22. That is, the connection between the end of the cross beam 11 and the photovoltaic module 100 still adopts the traditional connection method of the grounding cable 22, because the end is more convenient for welding and other assembly operations and has low cost.

[0035] Please refer to Figure 1 , Figure 2 and Figure 12As shown, the photovoltaic grounding system further comprises a fixing bolt 3. The metal support 1 comprises a longitudinal beam 12 extending along the longitudinal direction, and opposite ends of the cross beam 11 are connected to the corresponding longitudinal beam 12 through the fixing bolt 3, so that the photovoltaic module 100 is in conduction with the longitudinal beam 12. That is, the photovoltaic grounding system only connects the grounding signals of the photovoltaic modules 100 in the same row through the cross beam 11, and the unified effect can be achieved through the longitudinal beam 12. The fixing bolt 3 has the functions of conduction and grounding, and facilitates the disassembly and replacement of the cross beam 11 and the longitudinal beam 12.

[0036] Please refer to Figures 1 to 2 、 Figure 11 As shown, the cross beam 11, the longitudinal beam 12 and the fixing bolt 3 are made of hot-dipped galvanized material, and the hot-dipped galvanized material is used to ensure the effective transmission of the grounding signal; please refer to Figure 9 and Figure 11 As shown, the grounding cable 22 is made of copper core polyvinyl chloride BVR material, and the copper core polyvinyl chloride BVR material is also used to ensure the long-term transmission of the grounding signal.

[0037] Please refer to Figure 2 and Figure 12 As shown, the M rows of photovoltaic modules 100 arranged in front and back are fixedly connected to form a whole through the two longitudinal beams 12 arranged left and right. As described above, the photovoltaic grounding system connects the grounding signals of the photovoltaic modules 100 in the same row through the cross beam 11, and the unified effect can be achieved through the longitudinal beam 12.

[0038] Please refer to Figure 10 As shown, each row of the N photovoltaic modules 100 is fixedly connected to form a whole through the two cross beams 11 arranged in front and back. Such arrangement is to achieve balanced support and double grounding effect.

[0039] Please refer to Figures 1 to 12 As shown, the photovoltaic grounding system further comprises a plurality of metal columns 4 supported below the longitudinal beam 12, and the metal columns 4 are fixed to the ground to conduct the photovoltaic module 100. As described above, the photovoltaic grounding system connects the grounding signals of the photovoltaic modules 100 in the same row through the cross beam 11, and the unified effect can be achieved through the longitudinal beam 12. Then, the metal columns 4 fixed to the ground guide the static electricity of the photovoltaic module 100 to the ground, so as to achieve the grounding purpose.

[0040] In summary, the utility model discloses a metal support 1 fixed below the photovoltaic module 100, the metal support 1 includes the transverse beam 11 of extending and is provided with multiple bridging portions 112 between the adjacent two photovoltaic modules 100, and the position of each bridging portion 112 is equipped with the grounding component 2, which realizes the grounding effect, because the stability of the metal support 1, the photovoltaic grounding system also has the grounding stability, and can provide the advantageous guarantee of PV (photovoltaic) power generation.

[0041] The above implementation is only used for describing the utility model and not limiting the technical scheme described by the utility model, and the understanding of the utility model should be based on the technical personnel in the technical field, and although the utility model has been described in detail in the above-mentioned implementation in the specification, the ordinary skilled in the art should understand that the technical personnel in the technical field can still modify or replace the utility model, and all the technical schemes and improvements, which do not deviate from the spirit and scope of the utility model, should be covered in the scope of claims of the utility model.

Claims

1. A photovoltaic grounding system, characterized in that: The system includes photovoltaic modules (100) and a metal bracket (1) fixed below the photovoltaic modules (100). The metal bracket (1) includes a horizontally extending beam (11). The photovoltaic modules (100) are M*N, where M and N are natural numbers. The photovoltaic modules (100) are arranged in a matrix of M rows and N columns. The N photovoltaic modules (100) in each row are arranged left and right in the horizontal direction, and the M photovoltaic modules (100) in each column are arranged front and back in the vertical direction perpendicular to the horizontal direction. The N photovoltaic modules (100) in each row are fixedly connected as a whole by the beam (11). The beam (11) has a main support part (111) located below each photovoltaic module (100) in the row and a plurality of bridging parts (112) extending integrally from the main support part (111) between two adjacent photovoltaic modules (100). Each bridging part (112) is provided with a grounding component (2).

2. The photovoltaic grounding system as described in claim 1, characterized in that: The grounding component (2) is a grounding plate (21). The grounding plate (21) has a positioning part (211) on the bottom surface and piercing parts (212) on both sides of the positioning part (211) on the top surface. The grounding plate (21) is welded to the bridging part (112) at the location of the positioning part (211). The grounding plate (21) pierces the frame of two adjacent photovoltaic modules (100) through the piercing parts (212) to connect the photovoltaic module (100) to the crossbeam (11) for grounding.

3. The photovoltaic grounding system as described in claim 1, characterized in that: The grounding component (2) is a grounding cable (22). The bridging part (112) is provided with a grounding hole (10). The frames of two adjacent photovoltaic modules (100) are provided with grounding through holes (110). The grounding cable (22) passes through the grounding hole (10) and its two ends are respectively assembled into the two adjacent grounding through holes (110) to conduct and ground the photovoltaic module (100) and the crossbeam (11).

4. The photovoltaic grounding system as described in claim 2 or 3, characterized in that: The beam (11) has a first grounding hole (101) and a second grounding hole (102) at opposite ends. The two photovoltaic modules (100) arranged opposite to each other in each row have a first grounding through hole (1101) and a second grounding through hole (1102). The first grounding hole (101) is arranged corresponding to the first grounding through hole (1101), and the second grounding hole (102) is arranged corresponding to the second grounding through hole (1102). Each grounding hole (10) is electrically connected to its corresponding grounding through hole (110).

5. The photovoltaic grounding system as described in claim 4, characterized in that: It also includes a grounding cable (22), and each of the grounding holes (10) is connected to its corresponding grounding hole (110) via the grounding cable (22).

6. The photovoltaic grounding system as described in claim 5, characterized in that: It also includes fixing bolts (3), the metal bracket (1) includes a longitudinal beam (12) extending along the longitudinal direction, and the opposite ends of the crossbeam (11) are respectively connected to the corresponding longitudinal beam (12) by the fixing bolts (3) to conduct and ground the photovoltaic module (100) to the longitudinal beam (12).

7. The photovoltaic grounding system as described in claim 6, characterized in that: The crossbeam (11), the longitudinal beam (12) and the fixing bolt (3) are all made of hot-dip galvanized material, and the grounding cable (22) is made of copper core polyvinyl chloride material.

8. The photovoltaic grounding system as described in claim 6, characterized in that: The photovoltaic modules (100) arranged in the front and rear rows are fixedly connected as one unit by two longitudinal beams (12) arranged on the left and right.

9. The photovoltaic grounding system as described in claim 8, characterized in that: The N photovoltaic modules (100) in each row are fixedly connected as one unit by two crossbeams (11) set at the front and back.

10. The photovoltaic grounding system as described in claim 8, characterized in that: It also includes a plurality of metal columns (4) supported below the longitudinal beam (12), the metal columns (4) being fixed to the ground to conduct and ground the photovoltaic module (100).

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