Photovoltaic cable bridge

Abstract

The utility model relates to a photovoltaic cable bridge which is applied to the field of photovoltaic power generation. The cable connector comprises a body, the body is hollow to form a threading hole for a cable to penetrate through, and the cable connector is characterized in that a limiting assembly is arranged in the threading hole, the limiting assembly is arranged in the threading hole in a penetrating mode and abuts against the inner wall of the threading hole, a limiting groove is formed in the inner wall of the threading hole in the length direction of the threading hole, and the limiting groove is matched with the limiting assembly. The end, abutting against the inner wall of the threading hole, of the limiting assembly is inserted into the limiting groove. The limiting assembly comprises a plurality of limiting plates, one sides of the limiting plates are inserted into the limiting grooves, the other sides of the limiting plates abut against one another and are fixed through the fixing assembly, the limiting plates divide the threading hole into a plurality of threading areas, and each threading area is used for allowing a cable to penetrate through. The installation structure has the effect of being more convenient to install.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power generation, and particularly to a photovoltaic cable tray. Background Art

[0002] During the process of photovoltaic power generation, the electric energy generated by photovoltaic modules is first transmitted to the intelligent busbar trunking through the roof cables, and then from the intelligent busbar trunking to the DC cabinet or inverter through the cables. When laying the power cables from the intelligent busbar trunking to the DC cabinet or inverter, it is generally laid through the cable tray. At the same time, the communication cables from the intelligent busbar trunking to the communication manager also need to be laid in the cable tray. The fact that the communication cables and power cables are laid in the cable tray at the same time increases the electromagnetic interference received by the communication cables, resulting in unstable communication signals of the communication cables.

[0003] In order to reduce electromagnetic interference, a photovoltaic cable tray in the related art will add partitions in the wire trough of the cable tray and wrap a shielding layer on the corresponding cables when in use. Specifically, the shielding layer can be to set multiple independent metal pipes in the cable tray according to the number of power cables and communication cables and let the metal pipes be threaded in the cable tray along the cable's running direction. Only one cable is threaded through each metal pipe. Or according to the application category of the cables, for example, the power cables share one metal pipe and the communication cables share one metal pipe. At this time, there are only two metal pipes along the laying direction of the cables in the cable tray, which can reduce the volume of the cable tray. However, although threading the cables in the metal pipes can shield interference, the installation process between the metal pipes and the original cable tray is complex, indirectly slowing down the construction efficiency. Summary of the Utility Model

[0004] In order to improve the problem of complex installation, this application provides a photovoltaic cable tray.

[0005] In a first aspect, a photovoltaic cable tray provided by this application adopts the following technical solutions:

[0006] A photovoltaic cable tray includes a body. The body is hollow to form a threading hole for threading cables. A limiting component is arranged in the threading hole. The limiting component is threaded through the threading hole and abuts against the inner wall of the threading hole. A limiting groove is arranged on the inner wall of the threading hole along the length direction of the threading hole. One end of the limiting component abutting against the inner wall of the threading hole is inserted into the limiting groove.

[0007] The limiting component includes a plurality of limiting plates. One side of the limiting plate is inserted into the limiting groove, and the other sides of the limiting plates abut against each other and are fixed by a fixing component. The plurality of limiting plates divide the threading hole into a plurality of threading areas, and each threading area is used for threading cables.

[0008] By adopting the above technical solution, the limiting component is detachably fixed inside the bridge body. By using the original cavity structure of the bridge body, the cavity structure is divided into several wire threading areas, and the wire threading areas are enclosed by the limiting component and the inner wall of the cavity, which has good shielding performance. Cables with different functions can be arranged in different wire threading areas, and the interference between the cables is small. At the same time, due to the detachable structure, disassembly and assembly can be carried out conveniently, and the installation is more convenient.

[0009] Optionally, the fixing component includes a fixing rod, a chute is formed on the fixing rod for inserting the limiting plate, a pair of flanges are arranged at the opening of the chute, the pair of flanges are symmetrically arranged along the length direction of the chute, and a limiting slit for the limiting plate to pass through is formed between the pair of flanges. A slider is arranged on one side of the limiting plate inserted into the chute, and the slider is inserted into the chute along the length direction of the chute.

[0010] By adopting the above technical solution, during installation, through the cooperation of the chute and the limiting slit, when installing other limiting plates, the installed limiting plates will not be separated from the fixing rod, and the installation is more convenient and fast.

[0011] Optionally, heat dissipation holes are formed at the end of the fixing rod along the length direction of the fixing rod, and a plurality of flow guiding grooves are arranged on the inner wall of the heat dissipation holes. The plurality of flow guiding grooves are arranged along the length direction of the heat dissipation holes and adjacent flow guiding grooves are parallel to each other.

[0012] By adopting the above technical solution, heat dissipation holes are formed in the length direction of the fixing rod, so that the fixing rod forms a hollow tubular structure. When air flows, it can pass through the heat dissipation holes, playing a role in heat dissipation, and having good heat dissipation performance when the cable generates heat.

[0013] Optionally, a limiting block is arranged on one side of the limiting plate inserted into the limiting groove. The limiting block is inserted into the limiting groove along the length direction of the limiting groove and slides in the limiting groove. A limiting edge is arranged at the opening of the limiting groove, and a through groove is formed on the limiting edge for the limiting plate to pass through.

[0014] By adopting the above technical solution, the combination of the limiting groove and the limiting edge enables the fixing rod not to break away from the inner wall of the wire threading hole by using the combination of the limiting groove, the limiting block and the limiting edge when installing the fixing rod, and the installation is more convenient and fast.

[0015] Optionally, the limiting plate includes a plurality of plate bodies, and each of the plate bodies is provided with the limiting block and the sliding block. When the plate bodies are inserted into the main body, adjacent plate bodies are fixedly connected through a plugging part. The plugging part includes a plugging member, a receiving member, and a self-locking member. The plugging member is fixed at one end of the plate body, the receiving member is fixed at the other end of the plate body, and the self-locking member is arranged on the receiving member. When the plate body is inserted into the main body, the plugging member on the plate body is inserted into the receiving member of the adjacent plate body, and the self-locking member locks the plugging member and the receiving member.

[0016] By adopting the above technical solution, the limiting plate is fixedly formed by combining a plurality of plate bodies, so it can be spliced according to cable trays of different lengths, and has a wider application range.

[0017] Optionally, the plugging member includes a plugging column, and a positioning hole is provided at the end of the plugging column. When the plugging column is inserted into the receiving member, the self-locking member is inserted into the plugging column.

[0018] By adopting the above technical solution, when two plate bodies are spliced with each other, the plugging column is inserted into the receiving hole, and the plugging and positioning are more convenient.

[0019] Optionally, the receiving member includes a positioning column, a receiving hole for inserting the plugging column is formed on the plate body, the positioning column is fixed at the bottom of the receiving hole and is perpendicular to the bottom of the receiving hole, and when the plugging column is inserted into the receiving hole, the positioning column abuts against the bottom of the positioning hole.

[0020] By adopting the above technical solution, after the plugging is in place, the positioning column is inserted into the positioning hole, making it more difficult for the two plate bodies to shake.

[0021] Optionally, the self-locking member includes a locking tongue and a compression spring. A receiving hole is formed on the side wall of the receiving hole, a limiting ring is arranged on the inner wall of the receiving hole, the locking tongue is inserted into the receiving hole, one end of the compression spring is fixed on the locking tongue, and the other end of the compression spring is fixed at the bottom of the receiving hole;

[0022] An abutting block is arranged on the side wall of the locking tongue, and when the compression spring pushes the locking tongue to extend out of the receiving hole, the abutting block abuts against the end face of the limiting ring;

[0023] A locking hole is formed through the side wall of the plugging column, a guiding surface is arranged at the end of the locking tongue facing the plugging column, a jack communicating with the receiving hole is formed on the side wall of the plate body, and when the plugging column is inserted into the receiving hole, the locking hole is coaxial with the jack.

[0024] By adopting the above technical solution, after being inserted into place, the lock tongue is inserted into the lock hole to lock the plug-in column in the receiving hole. When disassembly is required, the lock tongue is pushed out of the lock hole by inserting the ejector pin into the plug hole until the lock tongue retracts into the receiving hole, so that disassembly can be conveniently performed. Even if the cable tray needs to be replaced, the plate body can be recycled and reused, saving resources.

[0025] In summary, the present application includes at least one of the following beneficial effects:

[0026] 1. The limiter assembly is detachably fixed in the bridge body. The original cavity structure of the bridge body is used to divide the cavity structure into several threading areas, and the threading areas are surrounded by the limiter assembly and the inner wall of the cavity. It has good shielding performance. Cables with different functions can be threaded in different threading areas, and the interference between cables is small. At the same time, due to the detachable structure, it can be easily disassembled and installed, which is more convenient;

[0027] 2. The limit plate can be assembled from multiple plates and self-locked using self-locking parts. It can adapt to bridges of different lengths and has a wider range of adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the photovoltaic cable bridge in the embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of the structure of the plate body in the embodiment of the present application;

[0030] Figure 3 This is a schematic diagram of the cross-sectional structure of the plate body in the embodiment of the present application;

[0031] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0032] In the figure: 1, main body; 11, threading hole; 12, limiting groove; 13, limiting block; 2, limiting assembly; 21, limiting plate; 211, plate body; 212, plug-in part; 2121, plug-in column; 2122, positioning hole; 2123, locking hole; 213, receiving part; 2131, receiving hole; 2132, positioning column; 214, self-locking part; 2141, locking tongue; 2142, compression spring; 2143, plug-in hole; 22, fixing rod; 221, heat dissipation hole; 222, guide groove; 23, slide groove; 24, slider. DETAILED DESCRIPTION

[0033] The following is combined with Figures 1 - 4 This application is described in further detail.

[0034] The present application embodiment discloses a photovoltaic cable bridge. Figure 1 andFigure 2 The photovoltaic cable tray is used to support the power cables and control cables connected to the photovoltaic panels. Specifically, the cable tray includes a body 1. A cavity is formed in the body 1 to form a wire threading hole 11 for threading the cables, and the cables can pass through the wire threading hole 11. In order to reduce electromagnetic interference, a limiting component 2 can be inserted into the wire threading hole 11 to divide the wire threading hole 11 into several wire threading areas, and the power cables and control cables can pass through different wire threading areas. A limiting groove 12 can be formed on the inner wall of the wire threading hole 11 along the length direction of the wire threading hole 11 for installing the limiting component 2. The limiting component 2 is inserted and fixed in the limiting groove 12, realizing the detachable fixed connection between the limiting component 2 and the wire threading hole 11, so that disassembly and assembly can be carried out more conveniently, and the construction efficiency can be improved.

[0035] Refer to Figure 1 and Figure 2 The limiting component 2 includes several limiting plates 21. One side of the limiting plate 21 is inserted into the limiting groove 12, and the other sides of the limiting plates 21 are abutted against each other and can be directly welded and fixed or fixed by a fixing component. The several limiting plates 21 divide the wire threading hole 11 into several wire threading areas, and each wire threading area is used for threading the cables. The power cables and control cables can be threaded in different wire threading areas to achieve the effect of shielding interference.

[0036] Refer to Figure 1 and Figure 2 As shown in

[0037] Refer toFigure 1 and Figure 2 At the end of the fixing rod 22, heat dissipation holes 221 can be formed. The heat dissipation holes 221 penetrate the entire fixing rod 22 and extend along the length direction of the fixing rod 22 coaxially with the fixing rod 22. A plurality of flow guiding grooves 222 are provided on the inner wall of the heat dissipation holes 221. The plurality of flow guiding grooves 222 are arranged along the length direction of the heat dissipation holes 221 and adjacent flow guiding grooves 222 are parallel to each other. The formation of the heat dissipation holes 221 in the length direction of the fixing rod 22 makes the fixing rod 22 form a hollow tubular structure. When air flows, it can pass through the heat dissipation holes 221, playing a role in heat dissipation and having good heat dissipation performance when the cable generates heat. The flow guiding grooves 222 can make the air pass regularly from the inside, improving the heat dissipation performance.

[0038] Refer to Figure 2 and Figure 3 and, the limiting plate 21 can also be formed by splicing a plurality of plate bodies 211 and self-locked by a self-locking member 214, which can adapt to bridge frames of different lengths and has a wider adaptation range. Combining Figure 1 Specifically, the limiting plate 21 realizes the fixed connection between adjacent plate bodies 211 through the cooperation of a plug-in member 212 and a receiving member 213 between the plurality of plate bodies 211. Specifically, a limiting block 13 and a slider 24 are provided on each plate body 211. When the plate body 211 is inserted into the wire threading hole 11, the adjacent plate bodies 211 are fixedly connected through a plug-in portion. The plug-in portion includes a plug-in member 212, a receiving member 213 and a self-locking member 214. The plug-in member 212 is fixed at one end of the plate body 211, the receiving member 213 is fixed at the other end of the plate body 211, and the self-locking member 214 is arranged on the receiving member 213. When the plate body 211 is inserted into the body 1, the plug-in member 212 on the plate body 211 is inserted into the receiving member 213 of the adjacent plate body 211 and the plug-in member 212 and the receiving member 213 are locked by the self-locking member 214.

[0039] Refer to Figure 2 and Figure 3 and, taking a single plate body 211 as an example, the specific connection relationship between the plug-in member 212, the receiving member 213 and the self-locking member 214 will be described below. Combining Figure 4, the connector 212 includes a plug post 2121, and a positioning hole 2122 is provided at the end of the plug post 2121. When the plug post 2121 is inserted into the receiving member 213, the self-locking member 214 is inserted into the plug post 2121. The receiving member 213 only has a positioning post 2132 and a receiving hole 2131 also needs to be opened on the other side of the plate body 211, and the positioning post 2132 is inserted into the receiving hole 2131. The locking member is also installed in the receiving hole 2131. Specifically, the locking member includes a locking tongue 2141 and a compression spring 2142. A receiving hole is opened on the side wall of the receiving hole, and a limiting ring is provided on the inner wall of the receiving hole. The locking tongue 2141 is inserted into the receiving hole, and one end of the compression spring 2142 is fixed on the locking tongue 2141, and the other end of the compression spring 2142 is fixed at the bottom of the receiving hole. A resisting block is fixed on the side wall of the locking tongue 2141 to limit the locking tongue 2141 to prevent the locking tongue 2141 from disengaging from the receiving hole. When the compression spring 2142 pushes the locking tongue 2141 to extend out of the receiving hole, the resisting block abuts against the end face of the limiting ring. A locking hole 2123 is penetrated through the side wall of the plug post 2121, and a guiding surface is provided at the end of the locking tongue 2141 facing the plug post 2121. A jack 2143 communicating with the receiving hole 2131 is opened on the side wall of the plate body 211. When the plug post 2121 is inserted into the receiving hole 2131, the locking hole 2123 is coaxial with the jack 2143. When the plate body 211 needs to be assembled, the plug post 2121 of the plate body 211 can be inserted into the receiving hole 2131 of the adjacent assembled plate. After being inserted in place, the positioning post 2132 is inserted into the positioning hole 2122, making it more difficult for the two plate bodies 211 to shake. The locking tongue 2141 is inserted into the locking hole 2123 to lock the plug post 2121 in the receiving hole 2131. When disassembly is required, the locking tongue 2141 is ejected from the locking hole 2123 by inserting a thimble into the jack 2143 until the locking tongue 2141 retracts into the receiving hole, so that disassembly can be conveniently carried out. Even if the cable tray needs to be replaced, the plate body 211 can be recycled, saving resources. And since the limiting plate 211 is still assembled, it can cope with cable trays of different lengths during use, and the application range is wider.

[0040] The limiting component 2 of the present application is detachably fixed in the cable tray body 1. Utilizing the original cavity structure of the cable tray body 1, the cavity structure is divided into several wire passing areas, and the wire passing areas are enclosed by the limiting component 2 and the inner wall of the cavity, having good shielding performance. Cables with different functions can be arranged in different wire passing areas, and the interference between the cables is small. At the same time, due to the detachable structure, disassembly and assembly can be carried out conveniently, and the installation is more convenient.

[0041] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A photovoltaic cable bridge, comprising a body (1), wherein the body (1) is hollow and has a threading hole (11) for threading a cable, and wherein: A limiting component (2) is provided in the threading hole (11), the limiting component (2) is passed through the threading hole (11) and abuts against the inner wall of the threading hole (11), a limiting groove (12) is provided on the inner wall of the threading hole (11) along the length direction of the threading hole (11), and one end of the limiting component (2) abutting against the inner wall of the threading hole (11) is inserted into the limiting groove (12); The limiting assembly (2) comprises a plurality of limiting plates (21), one side of the limiting plates (21) is inserted into the limiting groove (12), and the other side of the limiting plates (21) is mutually abutted and fixed by a fixing assembly, and the plurality of limiting plates (21) divide the threading hole (11) into a plurality of threading areas, each of which is used for threading a cable.

2. A photovoltaic cable bridge according to claim 1, characterized in that: The fixing assembly comprises a fixing rod (22), a sliding groove (23) is provided on the fixing rod (22) for the limiting plate (21) to be inserted, a pair of flanges are provided at the opening of the sliding groove (23), the pair of flanges are symmetrically arranged along the length direction of the sliding groove (23), a limiting gap is formed between the pair of flanges for the limiting plate (21) to pass through, a sliding block (24) is provided on one side of the limiting plate (21) inserted into the sliding groove (23), and the sliding block (24) is inserted into the sliding groove (23) along the length direction of the sliding groove (23).

3. A photovoltaic cable bridge according to claim 2, characterized in that: A heat dissipation hole (221) is provided at the end of the fixing rod (22) along the length direction of the fixing rod (22); a plurality of guide grooves (222) are provided on the inner wall of the heat dissipation hole (221); the plurality of guide grooves (222) are arranged along the length direction of the heat dissipation hole (221) and adjacent guide grooves (222) are parallel to each other.

4. A photovoltaic cable bridge according to claim 2, characterized in that: A limiting block (13) is provided on one side of the limiting plate (21) inserted into the limiting groove (12); the limiting block (13) is inserted into the limiting groove (12) along the length direction of the limiting groove (12) and slides in the limiting groove (12); a limiting edge is provided at the opening of the limiting groove (12); a through groove is provided on the limiting edge for the limiting plate (21) to pass through.

5. A photovoltaic cable bridge according to claim 4, characterized in that: The limiting plate (21) comprises a plurality of plate bodies (211), each of which is provided with the limiting block (13) and the sliding block (24); when the plate bodies (211) are inserted into the main body (1), adjacent plate bodies (211) are fixedly connected via a plug-in portion, wherein the plug-in portion comprises a plug-in component (212), a receiving component (213) and a self-locking component (214); and the plug-in component (212) is fixed to the plate body (211). The receiving piece (213) is fixed to one end of the plate body (211), the receiving piece (213) is fixed to the other end of the plate body (211), the self-locking piece (214) is arranged on the receiving piece (213), and when the plate body (211) is inserted into the main body (1), the plug-in piece (212) on the plate body (211) is inserted into the receiving piece (213) of the adjacent plate body (211), and the plug-in piece (212) and the receiving piece (213) are locked by the self-locking piece (214).

6. A photovoltaic cable bridge according to claim 5, characterized in that: The plug-in connector (212) comprises a plug-in column (2121), a positioning hole (2122) is provided at the end of the plug-in column (2121), and when the plug-in column (2121) is inserted into the receiving component (213), the self-locking component (214) is inserted into the plug-in column (2121).

7. A photovoltaic cable bridge according to claim 6, characterized in that: The receiving member (213) comprises a positioning column (2132); a receiving hole (2131) for inserting the plug-in column (2121) is provided on the plate body (211); the positioning column (2132) is fixed at the bottom of the receiving hole (2131) and is perpendicular to the bottom of the receiving hole (2131); when the plug-in column (2121) is inserted into the receiving hole (2131), the positioning column (2132) abuts against the bottom of the positioning hole (2122).

8. A photovoltaic cable bridge according to claim 7, characterized in that: The self-locking member (214) comprises a locking tongue (2141) and a compression spring (2142); a receiving hole is provided on the side wall of the bearing hole (2131); a limiting ring is provided on the inner wall of the receiving hole; the locking tongue (2141) is inserted into the receiving hole and one end of the compression spring (2142) is fixed on the locking tongue (2141); and the other end of the compression spring (2142) is fixed to the bottom of the receiving hole; A stop block is provided on the side wall of the locking tongue (2141), and when the compression spring (2142) pushes the locking tongue (2141) to extend out of the receiving hole, the stop block abuts against the end surface of the limiting ring; A locking hole (2123) is provided through the side wall of the plug-in column (2121); a guide surface is provided at the end of the locking tongue (2141) facing the plug-in column (2121); a plug hole (2143) communicating with the bearing hole (2131) is provided on the side wall of the plate body (211); when the plug-in column (2121) is inserted into the bearing hole (2131), the locking hole (2123) and the plug hole (2143) are coaxial.

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