Photovoltaic cable support device and photovoltaic installation

Abstract

The present application relates to photovoltaic power generation technical field, disclose photovoltaic cable support device and photovoltaic equipment, photovoltaic cable support device, including support beam, clamping piece and cable slot box, support beam is horizontally arranged, support beam is suitable for abutting with photovoltaic main structure, clamping piece is detachably installed on support beam, one end of clamping piece is suitable for abutting with photovoltaic main structure, cable slot box is installed on support beam, cable slot box is suitable for cable, the present application provides the photovoltaic cable support device structure light and the stress is clear, can give full play to the strength stiffness and stability of material;Convenient to install, whether land or sea installation, bolt installation is needed without electric welding operation;Strong adjustment ability, the distance between the clamp is freely adjusted according to the size of the slot box and the scene, the adjustment space is large;Not only suitable for the support of the slot box, for the support of inverter, monitoring (wind measurement, light measurement and other equipment or camera, etc.), other photovoltaic electrical equipment can be used.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, specifically to photovoltaic cable support devices and photovoltaic equipment. Background Technology

[0002] Photovoltaic energy is a clean energy source with the advantage of lower development costs compared to wind power. In energy-intensive coastal areas, offshore (tidal flats) or surface photovoltaic (PV) systems have significant development potential. Offshore (tidal flats) or surface photovoltaic systems that complement fisheries do not negatively impact the ecosystem or aquaculture environment. Regardless of whether it's onshore, offshore (tidal flats), or surface photovoltaic systems, cables are required to collect electricity from inverters to transformer substations and ultimately to the substation.

[0003] In existing technologies, onshore photovoltaic systems typically use direct burial or cable trenches to lay cables, and the civil engineering structure of the power collection lines is flexible and easy to implement. However, for offshore (tidal flat) or surface photovoltaic systems, due to their location in water, it is difficult to lay cables using direct burial or cable trench methods. Summary of the Invention

[0004] This invention provides a photovoltaic cable support device and photovoltaic equipment to solve the problem that it is difficult to lay cables in water areas using direct burial and cable trench methods in the prior art.

[0005] In a first aspect, the present invention provides a photovoltaic cable support device, comprising: The support beam is horizontally positioned and is designed to abut against the main photovoltaic structure. The clamping component is detachably mounted on the support beam, and one end of the clamping component is adapted to abut against the main photovoltaic structure. Cable trays are installed on support beams and are suitable for cable routing.

[0006] Beneficial effects: This invention uses clamping components to clamp and install the support beam with the cable tray onto the main photovoltaic structure, eliminating the need to excavate cable trenches in water areas. The cable tray can be used to store and arrange the cables above the water surface. For large-span photovoltaic equipment piles, there is no need to set up large-span connecting beams between the piles. The support beam with the cable tray can be directly installed on the main photovoltaic structure, which has the advantages of simple structure and convenient installation.

[0007] In one alternative embodiment, the support beam is provided with a first mounting hole, and the clamping member is provided with a second mounting hole, and fasteners are installed in the first mounting hole and the second mounting hole.

[0008] In one optional embodiment, the photovoltaic cable support device further includes: A pad is provided with a third mounting hole. The pad is located on the side of the support beam opposite to the clamping member, and the fastener passes through the third mounting hole.

[0009] In one alternative embodiment, the clamping member includes a horizontal portion and a vertical portion, with the vertical portion disposed at both ends of the horizontal portion. The horizontal portion and the vertical portion are connected to form a U-shape, and the height of the vertical portion on the side of the clamping member that abuts against the support beam is less than the height of the vertical portion on the other side.

[0010] In one alternative implementation, there are two first mounting holes, two second mounting holes, and two third mounting holes.

[0011] In one alternative implementation, the pad is L-shaped.

[0012] In one alternative embodiment, a fourth mounting hole is provided on the support beam, and a fifth mounting hole is provided at the bottom of the cable tray. Fasteners are installed in the fourth and fifth mounting holes.

[0013] In one optional embodiment, there are two clamping members, which are symmetrically arranged on both sides of the photovoltaic main structure.

[0014] In one optional embodiment, the photovoltaic cable support device further includes: The clamp is installed on the outside of the main photovoltaic structure, and the clamping parts abut against the two sides of the clamp.

[0015] Secondly, the present invention also provides a photovoltaic device, comprising: The main photovoltaic structure is suitable for installation in water. Photovoltaic panels are installed on the main photovoltaic structure. Cables, connecting the cables to the photovoltaic panels; The aforementioned photovoltaic cable support device has its top support beam abutting against the bottom of the main photovoltaic structure, and the cable is threaded through the cable tray.

[0016] Beneficial effects: The photovoltaic cable support device provided by this invention has a lightweight structure and clear force distribution, which can fully utilize the strength, rigidity and stability of the materials; it is easy to install, whether on land or at sea, it is all bolt installation and does not require electric welding; it has strong adjustment capability, the clamp spacing can be freely adjusted according to the specifications of the cable tray and the site conditions, and the adjustment space is large; it is not only suitable for cable tray support, but can also be used for supporting inverters, monitoring (wind and light measuring equipment or cameras, etc.), and other photovoltaic electrical equipment. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a front view of a photovoltaic cable support device according to an embodiment of the present invention; Figure 2 This is a top view of a photovoltaic cable support device according to an embodiment of the present invention; Figure 3 This is a side view of a photovoltaic cable support device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a clamping component in a photovoltaic cable support device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the pad in a photovoltaic cable support device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a support beam in a photovoltaic cable support device according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Support beam; 101. First mounting hole; 2. Clamping component; 201. Second mounting hole; 202. Horizontal part; 203. Vertical part; 3. Cable tray; 4. Fastener; 5. Pad; 501. Third mounting hole; 6. Photovoltaic main structure. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In related technologies, when offshore (tidal flat) or surface photovoltaic systems are located in water, cables must be laid above the water level or design tide level. The large spacing between surface photovoltaic piles makes it difficult for collector lines to cross directly. Typical self-stabilizing structures have a span of less than 2 meters, much smaller than the pile spacing. Therefore, cable support devices must be attached to the support structure. However, the purlins and support structures of the support structure are relatively fixed, and the design does not consider loads other than those required for the photovoltaic modules. If loads are considered, different loads will lead to different photovoltaic support structures. Furthermore, refined design and on-site implementation with professional coordination are very difficult; therefore, cable support devices are generally not designed to be attached to photovoltaic purlins, columns, or support structures. In fact, for piles with a span of less than 10 meters, the cable support device can be designed as a support beam supported between the piles and based on the piles. This type of support beam structure can solve some of the structural support problems of offshore (tidal flat) or water surface photovoltaics. However, for large-span structures with a span of more than 10 meters, such as portal frames, trusses, space frames, and flexible supports, designing beams supported between piles is neither economical nor reasonable. The following problems will exist: 1. Large spans lead to high material costs for beam structure sections; 2. Large-span components are difficult to install at sea; 3. Large-span beams will generate large transmission forces on the pile foundations, requiring redesign of the pile foundations; 4. Poor on-site construction conditions for offshore (tidal flat) or water surface photovoltaics make it impossible to fabricate and install large or numerous components at sea. For these large-span offshore (tidal flat) or water surface photovoltaic structures, the main support structure under the photovoltaic modules (and purlins) is almost always prefabricated on land, and large mechanical vessels are used for installation at sea.

[0022] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0023] According to embodiments of the present invention, in one aspect, such as Figures 1 to 6 As shown, a photovoltaic cable support device is provided, including a support beam 1, a clamping member 2, and a cable tray 3. The support beam 1 is horizontally arranged and is adapted to abut against the main photovoltaic structure 6. The clamping member 2 is detachably installed on the support beam 1, and one end of the clamping member 2 is adapted to abut against the main photovoltaic structure 6. The cable tray 3 is installed on the support beam 1 and is adapted to run cables through it.

[0024] Specifically, such as Figures 1 to 3As shown, this embodiment does not specifically limit the photovoltaic main structure 6. For example, in this embodiment, the photovoltaic main structure 6 is a vertically arranged H-shaped steel, and the support beam 1 is horizontally arranged at the bottom of the photovoltaic main structure 6. The axis of the support beam 1 is perpendicular to the axis of the photovoltaic main structure 6. Two clamping members 2 abut against the two sides of the bottom flange plate of the photovoltaic main structure 6. The clamping members 2 are detachably connected to the top of the support beam 1. The cable tray 3 is installed on the top of the support beam 1 for cable routing. In this embodiment, the support beam 1 is not specifically limited. For example, in this embodiment, the support beam 1 is a C-shaped steel.

[0025] This invention uses clamping member 2 to clamp and install the support beam with cable tray box 3 onto the photovoltaic main structure 6, eliminating the need to excavate cable trenches in water areas. The cable tray box 3 can store and arrange the cables above the water surface. For large-span photovoltaic equipment piles, there is no need to set up a large-span connecting beam between the piles. The support beam 1 with cable tray box 3 can be directly installed on the photovoltaic main structure, which has the advantages of simple structure and convenient installation.

[0026] In one embodiment, such as Figure 4 and Figure 6 As shown, the support beam 1 is provided with a first mounting hole 101, and the clamping member 2 is provided with a second mounting hole 201. Fasteners 4 are installed in the first mounting hole 101 and the second mounting hole 201.

[0027] Specifically, in this embodiment, the fastener 4 is a bolt containing a nut and a lock washer. The bolt passes through the first mounting hole 101 and the second mounting hole 201 to fix the clamping member 2 to the support beam 1.

[0028] In one embodiment, such as Figure 1 , Figure 3 and Figure 5 As shown, the photovoltaic cable support device also includes a pad 5, which has a third mounting hole 501. The pad 5 is located on the side of the support beam 1 opposite to the clamping member 2, and the fastener 4 passes through the third mounting hole 501.

[0029] Specifically, in this embodiment, the clamping member 2 and the pad 5 are located on the upper and lower sides of the support beam 1, and the fastener 4 passes through the pad 5, the support beam 1 and the clamping member 2 in sequence to fix the clamping member 2 and the pad 5 on the support beam 1.

[0030] The invention provides a pad 5 to increase the contact area between the fastener 4 and the support beam 1. When the support beam 1 is thin, it can disperse the pressure of the fastener 4 on the surface of the support beam 1, preventing crushing or plastic deformation.

[0031] In one embodiment, such as Figure 4As shown, the clamping member 2 includes a horizontal part 202 and a vertical part 203. The vertical part 203 is disposed at both ends of the horizontal part 202. The horizontal part 202 and the vertical part 203 are connected to form a U-shape. The height of the vertical part 203 on the side of the clamping member 2 that abuts against the support beam 1 is less than the height of the vertical part 203 on the other side.

[0032] Specifically, in this embodiment, the clamping member 2 can be made of channel steel. The vertical part 203 on one side of the channel steel is processed to be smaller than the other side. During installation, the vertical part 203 on the side with the smaller height abuts against the upper part of the lower flange plate of the photovoltaic main structure 6, and the vertical part 203 on the other side abuts against the top of the support beam 1. Then, the fastener 4 is passed through the second mounting hole 201 provided on the horizontal part 202.

[0033] In one embodiment, such as Figures 4 to 6 As shown, there are two of each of the first mounting hole 101, the second mounting hole 201, and the third mounting hole 501.

[0034] Specifically, in this embodiment, two first mounting holes 101 are arranged along the length of the clamping member 2, and the number and position of the second mounting holes 201 and the third mounting holes 501 correspond to the first mounting holes 101.

[0035] In one embodiment, such as Figure 4 As shown, pad 5 is L-shaped.

[0036] Specifically, in this embodiment, the pad 5 can be made of angle steel.

[0037] In one embodiment, a fourth mounting hole is provided on the support beam 1, and a fifth mounting hole is provided at the bottom of the cable tray 3. Fasteners 4 are installed in the fourth and fifth mounting holes.

[0038] Specifically, in this embodiment, four fourth mounting holes are symmetrically opened on the side of the photovoltaic main structure 6 on the support beam 1, and a fifth mounting hole is correspondingly opened at the bottom of the cable tray 3. Fasteners 4 are installed in the fourth and fifth mounting holes to install the cable tray 3 on the support beam 1.

[0039] In one embodiment, such as Figure 1 and Figure 2 As shown, there are two clamping components 2, which are symmetrically arranged on both sides of the photovoltaic main structure 6.

[0040] Specifically, in this embodiment, two clamping members 2 are symmetrically arranged on both sides of the bottom flange plate of the photovoltaic main structure 6, used to clamp the support beam 1 onto the photovoltaic main structure 6. Correspondingly, there are also two pads 5, each pad 5 corresponding to a clamping member 2.

[0041] In one embodiment, the photovoltaic cable support device further includes a clamp, which is disposed outside the photovoltaic main structure 6, and the clamping member 2 abuts against both sides of the clamp.

[0042] Specifically, in this embodiment, the photovoltaic main structure 6 can be an open member of an H-shaped steel structure or a closed member such as a steel pipe. For open members, special attention should be paid to the structural safety of unilateral torsion. For closed members, structures such as clamps can be used to achieve a transition between the photovoltaic main structure 6 and the clamping member 2.

[0043] In this embodiment, when the photovoltaic main structure 6 is a circular tube structure, a clamp is installed on the outside of the photovoltaic main structure 6. The clamp adopts two semi-circular structures with ears at both ends, and the ears are fixedly connected by bolts. The clamp has a first mounting hole 101, and the clamping member 2 and the pad 5 are installed on the ears on both sides by fasteners.

[0044] Specifically, the clamping component 2 needs to have its dimensions verified to fit the specific photovoltaic main structure 6 being clamped. The wall thickness of the clamping component 2 and the bolt dimensions need to be verified for stress resistance based on the specific project conditions. A wall thickness of 8mm to 10mm for the clamping component 2 can generally meet the requirements, and high-strength bolts with anti-loosening washers are used.

[0045] The photovoltaic cable support device provided by this invention has a lightweight structure and clearly defined force distribution, which can fully utilize the strength, rigidity and stability of the materials; it is easy to install, whether on land or at sea, it is all bolted and does not require welding; it has strong adjustment capability, the spacing of the clamping parts 2 can be freely adjusted according to the specifications of the cable tray 3 and the site conditions, and the adjustment space is large; the support beam 1 is not only suitable for supporting and installing the cable tray 3, but can also be used for supporting and installing inverters, monitoring (wind and light measuring equipment or cameras, etc.), and other photovoltaic electrical equipment.

[0046] According to an embodiment of the present invention, another aspect provides a photovoltaic device, including a photovoltaic main structure 6, a photovoltaic panel, a cable, and a photovoltaic cable support device as described in the above embodiment. The photovoltaic main structure 6 is adapted to be installed in water, the photovoltaic panel is installed on the photovoltaic main structure 6, the cable is connected to the photovoltaic panel, the top of the support beam 1 abuts against the bottom of the photovoltaic main structure 6, and the cable is passed through the cable tray 3.

[0047] Specifically, in this embodiment, the photovoltaic main structure 6 is installed in the sea, the photovoltaic panel is installed on the photovoltaic main structure 6, one end of the cable is connected to the photovoltaic panel, and the other end is used to connect to the inverter. The photovoltaic cable support device is installed on the photovoltaic main structure 6, and the cable is run through the cable tray 3.

[0048] This invention employs clamping components 2 and pads 5, and applies pre-tightening force through fasteners 4 to achieve two-point fixation in the vertical direction. The support beam 1 serves as the supporting structure for the cable tray 3, and the cable tray 3 can be designed to meet specific cable dimensions. Under the combined action of multiple clamping components 2, the cable tray 3 provides stable support to the support beam 1 along its direction. The cable tray 3 primarily bears the weight of the vertical cable and the tray itself, as well as the horizontal load along the vertical axis. The horizontal load is primarily environmental wind load. Both loads are borne by the clamping components 2 and the pads 5 and transferred to the photovoltaic main structure 6.

[0049] Support beam 1 is connected to the main photovoltaic structure 6 through two mounting points to form a structure resistant to vertical loads. The photovoltaic cable support device is installed after the photovoltaic equipment is built, and the bolts should be able to be prestressed. Because the photovoltaic cable support device is installed later, it has a strong position adjustment capability. The application of prestress and anti-loosening measures ensure that the photovoltaic cable support device can remain firm for a long time. The strength design of the support points and support beam 1 can improve the overall strength and rigidity of the photovoltaic cable support device, effectively resisting bending moment, axial force, shear force and deformation, and effectively resisting various loads borne by the offshore cable trough 3.

[0050] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A photovoltaic cable support device, characterized in that, include: A support beam (1) is provided horizontally and is adapted to abut against the main photovoltaic structure (6). Clamping member (2), the clamping member (2) is detachably installed on the support beam (1), and one end of the clamping member (2) is adapted to abut against the photovoltaic main structure (6); Cable tray (3) is installed on the support beam (1) and is suitable for cable routing.

2. The photovoltaic cable support device according to claim 1, characterized in that, The support beam (1) is provided with a first mounting hole (101), and the clamping member (2) is provided with a second mounting hole (201). Fasteners (4) are installed in the first mounting hole (101) and the second mounting hole (201).

3. The photovoltaic cable support device according to claim 2, characterized in that, Also includes: A pad (5) is provided with a third mounting hole (501). The pad (5) is located on the side opposite to the clamping member (2) of the support beam (1). The fastener (4) passes through the third mounting hole (501).

4. The photovoltaic cable support device according to claim 1, characterized in that, The clamping member (2) includes a horizontal part (202) and a vertical part (203). The vertical part (203) is disposed at both ends of the horizontal part (202). The horizontal part (202) and the vertical part (203) are connected to form a U-shape. The height of the vertical part (203) on the side of the clamping member (2) that abuts against the support beam (1) is less than the height of the vertical part (203) on the other side.

5. The photovoltaic cable support device according to claim 3, characterized in that, The number of the first mounting hole (101), the second mounting hole (201) and the third mounting hole (501) is two.

6. The photovoltaic cable support device according to claim 3, characterized in that, The pad (5) is L-shaped.

7. The photovoltaic cable support device according to claim 1, characterized in that, The support beam (1) has a fourth mounting hole, and the cable tray (3) has a fifth mounting hole at the bottom. Fasteners (4) are installed in the fourth mounting hole and the fifth mounting hole.

8. The photovoltaic cable support device according to claim 1, characterized in that, The number of clamping members (2) is two, and the two clamping members (2) are symmetrically arranged on both sides of the photovoltaic main structure (6).

9. The photovoltaic cable support device according to claim 8, characterized in that, Also includes: The clamp is located outside the main photovoltaic structure (6), and the clamping member (2) abuts against both sides of the clamp.

10. A photovoltaic device, characterized in that, include: A photovoltaic main structure (6) is suitable for installation in water; A photovoltaic panel, which is installed on the main photovoltaic structure (6); Cable, which is connected to the photovoltaic panel; According to any one of claims 1 to 9, the top of the support beam (1) abuts against the bottom of the photovoltaic main structure (6), and the cable passes through the cable tray (3).

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