Aluminum alloy cable mounting bracket combination

Abstract

The utility model provides an aluminum alloy cable installation support combination which comprises at least two longitudinal assemblies which are fixedly arranged in the vertical direction of a fan tower drum, each longitudinal assembly comprises a plurality of longitudinal bases which can be fixedly connected with the fan tower drum, and a connecting piece is arranged between any two adjacent longitudinal bases for series connection. The side end of the longitudinal assembly is connected with a plurality of cable fixing devices which are perpendicular to the length direction of the longitudinal assembly and are parallel to one another. According to the utility model, the continuous longitudinal assembly formed by connecting the longitudinal base and the connecting piece in series is constructed, and the side end of the continuous longitudinal assembly is provided with the special parallel cable fixing device; the problems that in the prior art, aluminum alloy cables droop due to discontinuous supporting during long-distance vertical laying in a fan tower drum, and a plurality of cables are difficult to manage and fix are systematically solved, and a special solution which is firm in structure and high in installation adaptability is provided for replacing a traditional bus duct with more economical and reliable aluminum alloy cables.

Description

[Technical Field]

[0002] This utility model relates to the field of wind power generation equipment technology, and in particular to an aluminum alloy cable mounting bracket assembly. [Background Technology]

[0004] Vertical power transmission within wind turbine towers often utilizes air-supported busbars, but these inherently suffer from drawbacks such as susceptibility to burnout, sagging, and high maintenance costs. To reduce costs and increase efficiency, aluminum alloy cables have become an ideal alternative due to their cost and reliability advantages. However, in the unique environment of towers—high-altitude and subject to vibration—long-distance vertical laying of aluminum alloy cables requires addressing the crucial issues of effective support and fixation to prevent sagging, displacement, and wear caused by cable weight or vibration.

[0005] Existing simple cable fixing methods or general-purpose cable trays often fail to provide sufficient support to accommodate the complex internal structure of towers. Firstly, there is a lack of continuous and effective vertical support. Long-distance vertically laid cables, relying solely on scattered fixing points (such as simple clamps), cannot effectively distribute the overall weight, easily leading to sagging between fixing points, resulting in uneven cable stress and posing a risk in long-term operation. A structure that can provide continuous and stable support along the tower height is needed. Secondly, managing and fixing multiple cables is difficult. Multiple cables are typically laid inside the tower. Existing general-purpose fasteners often struggle to achieve a neat and reliable arrangement of these cables securely and systematically. [Utility Model Content]

[0007] The purpose of this utility model is to provide an aluminum alloy cable mounting bracket assembly, which aims to solve the problems in the prior art of discontinuous support and easy sagging of aluminum alloy cables laid vertically over long distances inside wind turbine towers, as well as the difficulty in neatly and reliably fixing multiple cables.

[0008] This utility model is achieved through the following technical solution:

[0009] An aluminum alloy cable mounting bracket assembly includes at least two longitudinal components fixedly arranged vertically along the wind turbine tower. Each longitudinal component includes multiple longitudinal bases that can be fixedly connected to the wind turbine tower. Connectors are provided between any two adjacent longitudinal bases for series connection. Multiple cable fixing devices perpendicular to the length direction and parallel to each other are connected to the side end of the longitudinal component.

[0010] As described above, an aluminum alloy cable mounting bracket assembly includes a cable clamp bracket detachably connected to the side end of the longitudinal component, with a cable clamp connected to one side of the cable clamp bracket.

[0011] As described above, in an aluminum alloy cable mounting bracket assembly, the wind turbine tower includes a flange connection located on its inner wall, and the longitudinal assembly is provided with a cable tray for protecting the cable corresponding to the position of the flange connection.

[0012] As described above, an aluminum alloy cable mounting bracket assembly includes a cable tray comprising two bent rods on both sides, the two ends of which are connected to the longitudinal bases at both ends via connectors, and a plurality of crossbeams are evenly arranged between the two bent rods along their contour paths.

[0013] As described above, an aluminum alloy cable mounting bracket assembly includes a wind turbine tower with an operating platform extending from its inner wall. The operating platform has a clearance hole for cables to pass through, and a surrounding plate is provided around the clearance hole. A protective cover is provided at the upper end of the surrounding plate.

[0014] As described above, an aluminum alloy cable mounting bracket assembly includes a protective cover plate comprising a front cover plate and a rear cover plate detachably connected to the surrounding plate. A cable passes through the space between the front cover plate and the rear cover plate. The rear cover plate faces the longitudinal base and has a corresponding clearance groove. The two ends of the rear cover plate are provided with first connecting portions that can be fixed to the surrounding plate. The rear cover plate has a first flange on the side facing the cable. The two ends of the front cover plate are provided with second connecting portions that can be fixed to the surrounding plate. The side of the front cover plate facing the cable has a second flange. The first flange and the second flange are respectively fitted with protective rubber.

[0015] As described above, in an aluminum alloy cable mounting bracket assembly, the sides of the first flange and the second flange are inverted V-shapes.

[0016] As described above, in an aluminum alloy cable mounting bracket assembly, the wind turbine tower is provided with a plurality of connecting columns that are detachably connected to the longitudinal components.

[0017] As described above, in an aluminum alloy cable mounting bracket assembly, the longitudinal base is a U-shaped channel steel, with multiple second mounting holes evenly provided on both sides along the length direction, and multiple third mounting holes evenly provided in the middle along the length direction.

[0018] The connector is a U-shaped channel steel, with multiple fourth assembly holes evenly provided along the length of both sides, which can be connected to the second assembly hole, and a fifth assembly hole provided in the middle, which can be connected to the third assembly hole and the connecting column.

[0019] As described above, in an aluminum alloy cable mounting bracket assembly, a U-shaped reinforcement is provided between the two sides of the connector at the fifth mounting hole, and the U-shaped reinforcement has a sixth mounting hole that is clearance-fitted with the connecting column.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] This utility model systematically solves the problems of discontinuous support leading to sagging and difficulty in managing and fixing multiple cables when aluminum alloy cables are laid vertically over long distances in wind turbine towers. It constructs a continuous longitudinal component formed by a longitudinal base and connectors connected in series, and sets a special parallel cable fixing device on its side end. It provides a special solution with a robust structure and strong installation adaptability for replacing traditional busbar trunking with more economical and reliable aluminum alloy cables. [Attached Image Description]

[0023] To more clearly illustrate the technical solutions in the embodiments of the utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0024] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0025] Figure 2 This is a schematic diagram of the arrangement on the wind turbine tower in this embodiment;

[0026] Figure 3 This is a three-dimensional structural diagram of the cable bracket in this embodiment;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the cable clamp in this embodiment. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the cable clamp in this embodiment. Figure 2 ;

[0029] Figure 6 This is the three-dimensional structure of the cable tray in this embodiment;

[0030] Figure 7 for Figure 2 A partial side section diagram of the flange connection part of the wind turbine tower;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the protective cover in this embodiment. Figure 1 ;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the protective cover in this embodiment. Figure 2 ;

[0033] Figure 10 for Figure 2 A partial side cross-sectional view of the protective cover plate at the operating platform of the wind turbine tower;

[0034] Figure 11This is a three-dimensional structural diagram of the longitudinal base in this embodiment;

[0035] Figure 12 This is a schematic diagram of the three-dimensional structure of the connector in this embodiment. Figure 1 ;

[0036] Figure 13 This is a schematic diagram of the three-dimensional structure of the connector in this embodiment. Figure 2 .

Detailed Implementation Methods

[0038] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0039] To address the problems of easy burnout, sagging, and high maintenance costs of existing air-type busbar trunking in wind turbine towers, and to align with the cost reduction and efficiency improvement trend in the wind power industry, this embodiment provides an installation bracket assembly suitable for replacing existing air-type busbar trunking with aluminum alloy cables. This assembly aims to leverage the advantages of low cost and reliable operation of aluminum alloy cables, while providing a solution for conveniently and securely laying aluminum alloy cables on the inner wall of the wind turbine tower 1, particularly in scenarios involving the replacement of existing air-type busbar trunking.

[0040] Please see Figures 1 to 13 This embodiment relates to an aluminum alloy cable mounting bracket assembly, applied inside a wind turbine tower 1. The assembly includes at least two longitudinal components 2 fixed vertically along the inner wall of the wind turbine tower 1, and the number of components can be selected to be two, three or more depending on the inner diameter of the tower 1 and the number of cables.

[0041] Each longitudinal component 2 is the main structure for vertical support and fixation of the cable. It consists of multiple longitudinal bases 21 and connectors 22. The longitudinal base 21 is the basic unit that is directly or indirectly fixedly connected to the inner wall of the wind turbine tower 1.

[0042] In this embodiment, the mounting holes and connecting parts left after the original air-type busbar trunking is removed, or holes are re-drilled on the inner wall of the tower 1, and multiple longitudinal bases 21 are firmly fixed to the inner wall of the tower 1 by bolts and other fasteners, ensuring that they are distributed along the vertical direction of the tower 1, i.e., the height direction.

[0043] To form a continuous longitudinal support structure, any two vertically adjacent longitudinal bases 21 are connected in series via connectors 22. Connectors 22 can be simple connecting plates, connecting rods, or other suitable structural components. They ensure that multiple dispersed longitudinal bases 21 can be combined into a single longitudinal assembly 2 with sufficient length and rigidity to accommodate the installation requirements of towers 1 at different heights. This segmented design also facilitates transportation and on-site installation, allowing for flexible adjustment of the number of longitudinal bases 21 based on the required total length.

[0044] Multiple cable fixing devices 3 are connected to the side end of the longitudinal component 2. These cable fixing devices 3 are arranged perpendicular to the length direction of the longitudinal component 2, and the multiple cable fixing devices 3 are parallel to each other. The cable fixing devices 3 can be clamps, clips, or other structures suitable for fixing aluminum alloy cables. They directly perform the function of fixing the aluminum alloy cables, ensuring that the cables are laid along a predetermined path and maintaining the necessary safe distance. By setting the cable fixing devices 3 on the side end of the longitudinal component 2, the aluminum alloy cables can be easily installed and secured.

[0045] By setting up the longitudinal component 2 and the cable fixing device 3 on it, a stable and reliable support and fixation is provided for the vertical laying of aluminum alloy cables inside the wind turbine tower 1. The longitudinal base 21 of this bracket assembly can be directly fixed to the inner wall of the tower 1, which is especially suitable for renovation projects that replace the original air-type busbar trunking. It can utilize the original installation foundation or easily establish a new installation point. The longitudinal component 2 is composed of the base 21 and the connector 22 connected in series. Its length can be flexibly adjusted to adapt to different tower heights 1.

[0046] Multiple longitudinal components 2 are set vertically along the tower 1, and together with the cable fixing device 3 set vertically thereto, they form a solid support system that can effectively bear the weight of the aluminum alloy cable, prevent the cable from shifting or sagging due to its own weight or vibration during operation, ensure the long-term stable operation of the power transmission system, and avoid problems such as burnout and sagging that may occur in air-type busbar trunking.

[0047] By providing reliable aluminum alloy cable installation solutions, wind farm operators can smoothly replace air-type busbars, which have high failure rates and maintenance costs, with lower-cost and more reliable aluminum alloy cables. Compared with copper cables or tubular busbars, this directly reduces initial investment and subsequent operation and maintenance costs, improves the power generation efficiency and overall economic benefits of wind turbines, and extends equipment lifespan, which is in line with the current trend of cost reduction and efficiency improvement in the wind power industry.

[0048] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the cable fixing device 3 includes a cable clamp bracket 31 and one or more cable clamps 32 connected thereto.

[0049] The cable clamp bracket 31 serves as a bridge structure connecting the longitudinal components 2 and the cable clamps 32. In this embodiment, the cable clamp bracket 31 is connected to the side ends of two adjacent or opposite longitudinal components 2 via mounting seats 311 at both ends. This connection method is preferably detachable, for example, using bolts or snap-fit ​​structures, allowing the cable clamp bracket 31 to be easily installed onto or removed from the longitudinal components 2. The two mounting seats 311 are connected as a whole by one or more support strips 312. The support strips 312 can be metal strips or profiles of a certain strength, spanning between the two longitudinal components 2, providing a stable platform for installing the cable clamps 32. Compared to a cantilever structure, this spanning support structure 31 can better distribute the weight and lateral forces of the cable, improving the overall structural stability and load-bearing capacity.

[0050] The cable clamp 32 is specifically responsible for clamping and fixing the aluminum alloy cable. The cable clamp 32 consists of a front clamping block 321 and a rear clamping block 322. The front clamping block 321 is fixedly connected to or integrally formed with the support strip 312 of the cable clamp bracket 31. The rear clamping block 322 works in conjunction with the front clamping block 321. To connect the two clamping blocks and apply clamping force, multiple corresponding first mounting holes 323 are provided on both the front clamping block 321 and the rear clamping block 322. These first mounting holes 323 are through holes, allowing fasteners such as bolts to pass through. During installation, the aluminum alloy cable is placed in a pre-set groove or area on the front clamping block 321 or the rear clamping block 322 to accommodate the cable. These grooves or areas together form a clamping hole 324 when the two clamping blocks are closed. Then, the rear clamping block 322 is aligned with the front clamping block 321, aligning the first mounting holes 323 on both. Next, fasteners are passed through the aligned first mounting holes 323, and the front clamp 321 and rear clamp 322 are brought close together by tightening the fasteners. When the front clamp 321 and rear clamp 322 are assembled by fastening them through the first mounting holes 323, a clamping hole 324 is formed between them for securely holding the aluminum alloy cable. The shape and size of the clamping hole 324 are designed to match the outer diameter of the aluminum alloy cable to be secured. The cable is reliably secured within the clamping hole 324 by the pressure applied by the fasteners. Multiple clamping holes 324 can be designed on a single cable clamp 32 to simultaneously secure multiple cables.

[0051] By connecting the front and rear clamping blocks with fasteners passing through the corresponding first mounting holes 323 as described above, a controllable and sufficient clamping force can be applied to ensure that the cable is firmly fixed in the formed clamping holes 324 as described above, effectively preventing slippage. This structure allows for precise control of the cable's position and spacing. Furthermore, the multiple formed clamping holes 324 facilitate parallel, equidistant, and neat cable laying.

[0052] In practical applications, wind turbine tower 1 is typically composed of multiple sections connected by flanges, resulting in annular flange connections 11 on its inner wall. These flange connections 11 usually protrude radially into the tower 1 by a certain distance. If the aluminum alloy cable is laid vertically close to the inner wall of the tower 1, it may come into contact with, rub against, or even be damaged by the sharp edges of the flange connections 11 when passing through them, or it may need to be bent unnecessarily to avoid them, affecting the safety of the cable and the smoothness of installation.

[0053] To address this issue, this embodiment includes a cable tray 4 on the longitudinal component 2, specifically designed to protect the cables at locations where they need to cross the flange connection 11. Specifically, the cable tray 4 includes bent rods 41 located on both sides of its structure. Here, "bent" refers to the fact that the shape of these two rods 41 is designed to protrude outwards from the inner wall of the tower 1 towards the center of the tower, forming an arc-shaped or zigzag profile that crosses the lower obstacle, the flange connection 11. In this way, the cables laid on the cable tray 4 can safely cross the flange connection 11 without direct contact.

[0054] In the configuration of the longitudinal component 2, when encountering the flange connection 11, the conventional connector 22 originally used to connect two adjacent longitudinal bases 21 is replaced or combined with this special cable tray 4. The two ends of the bent rod 41 are respectively connected to the two longitudinal bases 21 located above and below the flange connection 11 via connectors 22 (here, the connector 22 can be a standard or special fastener / connection structure for fixing the ends of the bent rod 41 to the longitudinal base 21). In this way, the cable tray 4 is seamlessly embedded into the continuous structure of the longitudinal component 2, ensuring the integrity and support strength of the longitudinal component 2.

[0055] To support the cable, multiple crossbeams 42 are evenly arranged between the two opposing bent bars 41. These crossbeams 42 are arranged along the contour path of the bent bars 41, i.e., the curved or zigzag path, and together they form a sturdy bearing surface with a certain width. The aluminum alloy cable can be placed or fixed smoothly on these crossbeams 42, thereby smoothly and safely crossing the flange connection 11 of the inner wall of the tower 1.

[0056] By configuring the cable tray 4, its bending rods 41, and crossbeams 42, the aluminum alloy cables can be raised and safely bypassed when passing through the flange connection 11 on the inner wall of the tower 1. This avoids wear, scratches, or compression that may occur from direct contact between the cable and the flange, significantly improving the safety and service life of the cable operation. Furthermore, the cable tray 4 provides a smooth transition channel for the cable, avoiding the need for sharp bends or complex detours at the flange, simplifying the installation process and reducing the need for additional connections. The cable tray 4 is connected to the longitudinal base 21 via connectors 22, organically integrating into the overall structure of the longitudinal component 2 without compromising the continuity and load-bearing capacity of the longitudinal component, ensuring both functionality and structural strength of the entire support system. This design is specifically optimized for the common flange structures inside wind turbine towers, allowing this aluminum alloy cable mounting bracket assembly to better adapt to actual installation environments.

[0057] In practical applications, one or more operating platforms 12 are typically installed inside the large wind turbine tower 1 for equipment maintenance and personnel operation. These operating platforms 12 usually extend horizontally from the inner wall of the tower 1. When aluminum alloy cables need to be laid from the bottom to the top of the tower, they must pass through these operating platforms 12. The operating platforms 12 are usually pre-drilled with clearance holes 121 for the vertical passage of the cables.

[0058] Therefore, to prevent people or objects from accidentally falling and to guide and protect cables passing through the hole, in this embodiment, a surrounding plate 122 of a certain height is provided along the circumference (edge) of the clearance hole 121, forming a raised edge or "threshold". A protective cover plate 123 is further provided at the upper end of the surrounding plate 122. The protective cover plate 123 can be composed of a front cover plate 1231 and a rear cover plate 1232. Both cover plates 1231 and 1232 can be detachably connected to the surrounding plate 122 via bolts or clips through the connecting structures at their respective ends (the front cover plate 1231 corresponds to the second connecting part 1236, and the rear cover plate 1232 corresponds to the first connecting part 1234), facilitating installation and maintenance.

[0059] After the front cover plate 1231 and the rear cover plate 1232 are installed in place, they are not completely closed, but there is an appropriate gap, which is just enough for the aluminum alloy cable to pass through.

[0060] To better accommodate the longitudinal component 2, the rear cover plate 1232, i.e., the cover plate near the inner wall of the tower or the side of the longitudinal component 2, is designed to accommodate the presence of the longitudinal base 21. Specifically, the rear cover plate 1232 is installed facing the longitudinal base 21, and a corresponding clearance groove 1233 is specially provided on its plate. The shape and position of this clearance groove 1233 match the contour of the longitudinal base 21 as it passes through the vicinity of the platform 12, so that the rear cover plate 1232 can fit tightly against or avoid the longitudinal base 21 after installation, ensuring the stability and airtightness of the installation, and avoiding the inability to install the cover plate or leaving excessive gaps due to the presence of the longitudinal base 21.

[0061] To protect the passing cables, the rear cover plate 1232 has a first flange 1235 formed by bending upwards or downwards on one edge facing the cable passage gap. Similarly, the front cover plate 1231 also has a second flange 1237 on one edge facing the cable passage gap. Flexible protective rubber 1238 is respectively fitted onto these two opposing first flanges 1235 and second flanges 1237.

[0062] Therefore, when the aluminum alloy cable passes through the gap between the two cover plates, it comes into direct contact with the smooth, flexible flange covered with protective rubber 1238, rather than any potentially sharp metal edge.

[0063] By incorporating a first flange 1235 and a second flange 1237 with protective rubber 1238, the insulation layer of the aluminum alloy cable is effectively prevented from being worn or damaged due to friction with the edge of the cover plate when passing through the operating platform 12, ensuring the safe operation of the cable. Furthermore, the protective cover plate 123 largely covers the clearance hole 121, significantly reducing the opening area and effectively preventing tools and debris from falling in. It also reduces the risk of personnel accidentally stepping into the hole, improving the overall safety of the operating platform 12. In addition, the clearance groove 1233 on the rear cover plate 1232 solves the spatial interference problem between the protective cover plate and the longitudinal cable support, especially the longitudinal base 21, allowing the cover plate to be installed more effectively and improving the overall fit and aesthetics of the installation.

[0064] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the sides of the first flange 1235 and the second flange 1237 (i.e., the surfaces of the flanges perpendicular to the plane of the cover plate when viewed along the cable travel direction) are designed to be inverted V-shapes.

[0065] Specifically, the "inverted V-shaped" side profile means that from the root of the flange (near the main body of the cover plate) to its top (the edge covered with protective rubber 1238), its side profile is not a straight line perpendicular to the plane of the cover plate, but rather an outward-opening slope. When the first flange 1235 and the second flange 1237 are arranged opposite each other, their inverted V-shaped sides together form a funnel-shaped or flared guide slope at the cable entry and exit points of the gap, i.e., at the upper and lower surfaces of the cover plate. In other words, the channel through which the cable enters or exits the gap of the protective cover plate 123 has a gradually narrowing transition area in the vertical direction, either from the outside to the inside or from the inside to the outside.

[0066] This inverted V-shaped side design provides significant guidance. During installation, when a thicker, stiffer aluminum alloy cable needs to be threaded through the gap in the protective cover 123 on the operating platform 12, this "flared" inlet effectively guides the cable end smoothly into the center of the gap. Even if the angle of the cable insertion is slightly off, it is less likely to be stuck or scratched by the edges of the cover, greatly reducing the difficulty of cable threading and improving installation efficiency. Furthermore, for minor vibrations or displacements that may occur during operation, the inverted V-shaped transition side, compared to a right-angled edge, can more smoothly disperse the stress at the contact point between the cable and the cover, helping to extend the service life of both the cable and the protective structure.

[0067] Furthermore, to minimize on-site construction work, especially avoiding hot work such as welding and cutting inside tower 1, thereby reducing on-site operational risks, shortening the construction period, and controlling renovation costs, this embodiment prioritizes and utilizes existing installation columns or fixed connection points on the inner wall of wind turbine tower 1 along the original equipment's laying path, such as the air-type busbar trunking to be replaced. These existing tower installation structures are defined as connecting columns 5 in this embodiment. They serve as readily available, structurally strong load-bearing and connection interfaces, enabling detachable connections between the new longitudinal component 2 and tower 1. This reuse of existing facilities is a significant advantage of this solution in replacement and renovation scenarios.

[0068] Next, the constituent units of the vertical component 2 will be described in detail:

[0069] In this embodiment, the longitudinal base 21 is made of U-shaped channel steel. This profile has good structural strength and open sides, which facilitates the subsequent installation of the cable fixing device 3. To achieve connection, multiple rows of second mounting holes 211 are evenly opened along the length direction on the two side flanges of the U-shaped channel steel. At the same time, multiple third mounting holes 212 are also evenly opened along the length direction on the web of the middle part of the U-shaped channel steel.

[0070] The connector 22 used to connect adjacent longitudinal bases 21 is also made of U-shaped channel steel in this embodiment, and its size can be designed to fit or connect with the ends of the longitudinal bases 21. In order to achieve the connection with the longitudinal bases 21, a plurality of fourth mounting holes 221 are also evenly provided on the two side flanges of the connector 22. The position and diameter of these holes are designed to be precisely aligned with the second mounting holes 211 at the ends of the longitudinal bases 21. In addition, one or more fifth mounting holes 222 are provided at key positions in the middle web of the connector 22.

[0071] When assembling the longitudinal assembly 2, a connector 22 is sleeved or mated to the ends of two adjacent longitudinal bases 21. At this time, the fourth mounting hole 221 on the side flange of the connector 22 is aligned with the second mounting hole 211 on the side flange of the longitudinal base 21. By inserting and tightening fasteners such as bolts into these aligned holes, the connector 22 and the two longitudinal bases 21 are securely connected to each other on the side to form a continuous longitudinal assembly 2.

[0072] Simultaneously, at the location of the connector 22, the fifth mounting hole 222 on its web is used to connect the entire longitudinal assembly 2 to the existing connecting columns 5 on the tower 1. Specifically, the longitudinal assembly 2 is positioned so that the fifth mounting hole 222 on the web of the connector 22 aligns with the connecting hole or fitting connection point on the corresponding connecting column 5. Furthermore, the fifth mounting hole 222 is also aligned with the third mounting hole 212 on the web of the end of the longitudinal base 21. Then, suitable fasteners, such as long bolts, are passed through the fifth mounting hole 222 and the third mounting hole 212, and finally secured to the existing connecting column 5. In this way, the longitudinal assembly 2, composed of the longitudinal base 21, is securely and detachably fixed to the original mounting point 5 of the tower 1 via the connector 22.

[0073] By utilizing the existing connecting columns 5 within tower 1, hot work such as cutting and welding, as well as extensive drilling, are avoided inside the tower. This greatly simplifies the on-site installation process, shortens the construction period, and reduces the safety risks associated with working at heights and in confined spaces. It is particularly suitable for retrofitting existing wind turbines.

[0074] Utilizing existing facilities and simplifying on-site operations significantly reduces installation costs and total project costs, perfectly aligning with the wind power industry's need for cost reduction.

[0075] As mentioned earlier, the connector 22 is made of U-shaped channel steel, and its central web plate has a fifth mounting hole 222 for connecting to the existing connecting column 5 on the tower 1 via fasteners. In order to achieve more precise positioning, more convenient installation, and potentially more optimized force transmission, this embodiment further features a special design for the interface structure between the connector 22 and the connecting column 5.

[0076] Specifically, a U-shaped reinforcement 223 is provided on the web of the connector 22, between its two sides, corresponding to the fifth mounting hole 222. Its main function is to form a structured channel or positioning seat for the connecting post 5 to pass through. It can be a U-shaped member or similar structure with a specific internal profile attached to the web of the connector 22.

[0077] A sixth mounting hole 224 is provided on this U-shaped reinforcement 223. Unlike the fifth mounting hole 222, this sixth mounting hole 224 is not mainly used for fasteners to pass through, but its size and shape are designed to allow the main body or specific part of the corresponding original tower connecting column 5 to pass through it.

[0078] Furthermore, the sixth mounting hole 224 and the connecting post 5 passing through it are designed for a clearance fit. This means that the diameter of the sixth mounting hole 224 is slightly larger than the diameter of the connecting post 5, leaving a certain gap.

[0079] When installing the longitudinal component 2 onto the tower 1, the worker aligns the connector 22 with the existing connecting post 5 at the predetermined position. At this time, the connecting post 5 is first guided through the sixth mounting hole 224 on the U-shaped reinforcement 223. Due to the clearance fit, this insertion process is relatively easy and can tolerate a certain degree of alignment deviation. After the connecting post 5 has passed through the sixth mounting hole 224 and the connector 22 has reached the predetermined installation position, the fifth mounting hole 222 on the web of the connector 22 is then used to insert a fastener, such as a bolt. By tightening this fastener, the connector 22 is finally securely fixed to the connecting post 5.

[0080] The U-shaped reinforcement 223 and its sixth mounting hole 224 constitute a physical guide and positioning device. This ensures that the connector 22 can accurately fit onto the connecting post 5 during installation, guaranteeing the positional accuracy of the longitudinal component 2 relative to the tower 1. Furthermore, after the connecting post 5 passes through the sixth mounting hole 224, the connector 22 is to some extent "fitted" onto the connecting post 5 by the U-shaped reinforcement 223. Besides relying on the fasteners at the fifth mounting hole 222 for securing the connection, this structure itself helps resist lateral forces or torsional loads, improving the overall stability of the connection.

[0081] Working principle of this utility model:

[0082] This embodiment provides an assembly of mounting brackets for aluminum alloy cables inside wind turbine towers, designed to replace traditional air-supported busbars which are prone to damage and have high maintenance costs, thereby reducing costs and increasing efficiency. Its core working principle involves constructing a modular longitudinal support assembly fixed vertically along the inner wall of the tower. This assembly consists of a base and connectors connected in series, and its length is flexibly adjustable. This solution utilizes existing mounting columns or fixing points within the tower, achieving rapid and non-destructive installation and connection through specially designed connectors, effectively avoiding on-site hot work, simplifying the construction process, and reducing costs. The aluminum alloy cables are securely laid using dedicated cable fixing devices installed on the longitudinal assembly. To adapt to the complex environment inside the tower, the assembly also includes cable trays to guide the cables safely across the tower flanges, and protective covers with rubber protective edges and guiding functions at the operating platform through-holes, comprehensively ensuring cable safety and personnel safety. Overall, this bracket assembly provides a robust, reliable, easy-to-install, and cost-effective solution for upgrading wind turbine tower cable systems.

[0083] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. An aluminum alloy cable mounting bracket assembly, characterized by, It includes at least two longitudinal components (2) fixedly arranged vertically along the wind turbine tower (1). Each longitudinal component (2) includes multiple longitudinal bases (21) that can be fixedly connected to the wind turbine tower (1). Connectors (22) are connected in series between any two adjacent longitudinal bases (21). Multiple cable fixing devices (3) perpendicular to its length direction and parallel to each other are connected to the side end of the longitudinal component (2).

2. The aluminum alloy cable mounting bracket assembly according to claim 1, characterized in that, The cable fixing device (3) includes a cable clamp bracket (31) detachably connected to the side end of the longitudinal component (2), and a cable clamp (32) is connected to one side of the cable clamp bracket (31).

3. An aluminum alloy cable support assembly according to claim 1, wherein, The wind turbine tower (1) includes a flange connection (11) located on its inner wall, and the longitudinal assembly (2) is provided with a cable tray (4) for protecting the cable corresponding to the position of the flange connection (11).

4. An aluminum alloy cable support assembly according to claim 3, wherein, The cable tray (4) includes two bent rods (41) on both sides. The two ends of the bent rods (41) are connected to the longitudinal bases (21) at both ends by connectors (22). A plurality of crossbeams (42) are evenly arranged between the two bent rods (41) along their contour paths.

5. An aluminum alloy cable support assembly as defined in claim 1, wherein, The wind turbine tower (1) includes an operating platform (12) extending from its inner wall. The operating platform (12) has a clearance hole (121) for cables to pass through. A surrounding plate (122) is provided around the clearance hole (121), and a protective cover plate (123) is provided at the upper end of the surrounding plate (122).

6. An aluminum alloy cable support assembly according to claim 5, wherein, The protective cover plate (123) includes a front cover plate (1231) and a rear cover plate (1232) detachably connected to the enclosure plate (122). A cable passes through the front cover plate (1231) and the rear cover plate (1232). The rear cover plate (1232) faces the longitudinal base (21) and has a corresponding clearance groove (1233). The two ends of the rear cover plate (1232) are provided with a first connecting part (1234) that can be fixed to the enclosure plate (122). The side end of the rear cover plate (1232) facing the cable is provided with a first flange (1235). The two ends of the front cover plate (1231) are provided with a second connecting part (1236) that can be fixed to the enclosure plate. The side end of the front cover plate (1231) facing the cable is provided with a second flange (1237). The first flange (1235) and the second flange (1237) are respectively covered with protective rubber (1238).

7. An aluminum alloy cable support assembly according to claim 6 wherein, The sides of the first flange (1235) and the second flange (1237) are inverted V-shapes.

8. An aluminum alloy cable support assembly as defined in claim 1, wherein, The wind turbine tower (1) is provided with multiple connecting columns (5) that are detachably connected to the longitudinal component (2).

9. An aluminum alloy cable support assembly according to claim 8, wherein, The longitudinal base (21) is a U-shaped channel steel, with multiple second assembly holes (211) evenly provided on both sides along the length direction, and multiple third assembly holes (212) evenly provided in the middle along the length direction. The connector (22) is a U-shaped channel steel with multiple fourth assembly holes (221) evenly provided along the length of both sides, which can be connected to the second assembly hole (211), and a fifth assembly hole (222) provided in the middle. The fifth assembly hole (222) can be connected to the third assembly hole (212) and the connecting column (5).

10. An aluminum alloy cable support assembly according to claim 9, wherein, A U-shaped reinforcement (223) is provided between the two sides of the connector (22) at the location corresponding to the fifth assembly hole (222). The U-shaped reinforcement (223) has a sixth assembly hole (224) that is clearance-fitted with the connecting post (5).

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