A connectorless busbar arrangement

Abstract

The utility model discloses a busbar device without connector for the hoisting of flexible busbar, comprising a plurality of pairs of Z-shaped hangers, round steel hanger poles matched with each Z-shaped hanger and a plurality of U-shaped support frames, each round steel hanger pole is hung and connected on each Z-shaped hanger, and the top side of each U-shaped support frame is hung and connected on the lower end of a pair of round steel hanger poles after being fastened by nuts. The plurality of U-shaped support frames are provided with busbar limiting locking pieces for the parallel arrangement of the plurality of flexible busbars, the single-layer or at least two-layer parallel superposition installation after the upper and lower side limiting and fixing, and the single-column fixing or at least two-column parallel arrangement. The side of the busbar limiting locking piece along the width direction is also vertically and parallelly provided with a PE protective conductor in a flat sheet structure. The above structure in combination with the flexible laying mode of the busbar effectively reduces the joint of the butt joint, reduces the installation difficulty, improves the convenience and reliability of the installation.

Description

Technical Field

[0001] This utility model relates to the field of busbar installation technology, and in particular to a connectorless busbar device. Background Technology

[0002] In current technology, power transmission trunk lines generally use cables or busbars. Cables are widely used because they are flexible, can be coiled, and can be manufactured in long lengths. However, for high-current power transmission, due to the high construction difficulty, poor heat dissipation of round cables, and high cost, most cables are limited to 240 square millimeters or less. Multi-span cables are generally not used due to high risk, and the significant reduction in heat dissipation and current carrying capacity when laid in enclosed cable trays. Tray-type, wire-type, and mesh-type cable trays are also aesthetically unappealing when viewed from below.

[0003] Therefore, relevant standards clearly stipulate that busbar trunking should be used for loads above 400A. Thus, busbar trunking is an indispensable part of modern buildings, often suspended under the ceiling. As a rigid structure, due to transportation and space constraints within the building, each section of busbar trunking cannot be very long; it is custom-made based on site measurements. This results in a long manufacturing period, and currently, the longest single section of busbar trunking does not exceed 6 meters. Furthermore, connectors are needed to connect sections to meet project requirements. According to current statistics, over 80% of busbar trunking accidents occur at connection points, causing significant losses to projects.

[0004] This is because, in the connection section, if the axes of the two busbar trunking sections are not strictly aligned, or the bolt holes of the busbar and the insulation plate are not fully aligned, the insulation sleeve will be damaged by shear force when the bolts are tightened, resulting in a decrease in insulation performance.

[0005] Therefore, it is urgent to optimize the existing busbar structure and hoisting method to effectively reduce the installation difficulty of the busbar and improve the reliability of the connection. Utility Model Content

[0006] This utility model provides a connectorless busbar device, which facilitates the flexible laying of busbars, effectively reduces the number of joints, lowers the installation difficulty, and improves the convenience and reliability of installation.

[0007] The technical solution adopted by this utility model to solve its technical problem is: A connectorless busbar device for suspending flexible busbars includes multiple pairs of Z-shaped hangers, round steel hangers that cooperate with each Z-shaped hanger, and multiple U-shaped support frames. The Z-shaped hangers are symmetrically arranged in pairs and are supported and installed on the ceiling by expansion bolts. Each of the round steel rods is fastened with a nut at its upper end and then hung and connected to each Z-shaped hanging component. The top two ends of each U-shaped support bracket are fastened with nuts and then hung and connected to the lower ends of a pair of round steel rods; The U-shaped support frame with multiple intervals is provided with busbar limiting and locking components for multiple flexible busbars arranged in parallel and fixed on the upper and lower sides, installed in a single layer or at least two layers in parallel superposition, and fixed in a single row or arranged in at least two rows in a single layer; The flexible busbars are all flat, thin sheet-like structures, and multiple flexible busbars are arranged vertically side by side along the width direction and fixed between the busbar limiting and locking components. The busbar limiting and locking component also has a PE protective conductor with a flat, thin sheet structure installed vertically side by side along its width direction.

[0008] Preferably, the busbar limiting and locking component includes an upper snap-fit ​​plate and a bottom tray plate. The upper snap-fit ​​plate and the bottom tray plate have U-shaped curved groove structures on their corresponding sides, which are U-shaped grooves used to snap and limit the upper and lower ends of multiple vertically arranged flexible busbars. After the upper snap-fit ​​plate and the bottom tray plate are joined, the two ends are respectively fitted with locking screws and nuts to fix multiple flexible busbars together or to fix the bottom side of the entire busbar limiting and locking component to the U-shaped support frame.

[0009] Preferably, shock-absorbing strips are embedded in the corresponding U-shaped grooves of the upper buckle plate and the bottom tray plate to limit and fix the upper and lower ends of the flexible busbar.

[0010] Preferably, the upper buckle plate is a fixing clip integrally formed from aluminum alloy material.

[0011] Preferably, the bottom tray plate also has double-layered folded edge plates on both sides for fixing the PE protective conductor or for fastening to both sides of the U-shaped support frame.

[0012] Preferably, the bottom side pallet is a support component formed by integral stamping and folding of a color-coated steel sheet.

[0013] Preferably, the flexible busbar adopts a flat sheet structure with a thickness of 3.0 mm.

[0014] The beneficial effects of this utility model are: To address the issues of existing methods that use busbar trunking to fix busbars, which result in difficulty in bending the busbars, inconvenient installation and wiring, and reduced reliability and service life, this embodiment employs a flexible busbar laying method. This effectively reduces the number of joints. Through the effective cooperation of U-shaped support brackets and busbar limiting and locking components, multiple flexible busbars can be arranged side by side and fixed on both sides in the busbar installation and fixing structure. This allows for a single-layer single-row, single-layer multi-row, or multi-layer single-row hoisting structure, effectively reducing installation difficulty and improving installation convenience and reliability.

[0015] Meanwhile, since the flexible busbar can be easily bent in the thickness direction and has high rigidity in the width direction, the U-shaped support frame and busbar limiting and locking parts can effectively cooperate with the flexible busbar during the assembly process. It can be bent into any spatial configuration by hand or with simple tools, which facilitates the wiring of the busbar installation, can adapt to complex wiring environments, effectively reduce the difficulty of existing busbar assembly and installation, and improve on-site construction efficiency.

[0016] Moreover, the parallel arrangement of multiple flexible busbars allows the same conductor cross-sectional area to carry a larger current, thereby reducing the amount of conductor material used, which reduces weight and saves layout space.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the single-layer, single-row busbar assembly structure without connectors in Embodiment 1 of this utility model; Figure 2 yes Figure 1 Enlarged schematic diagram of the cross-sectional structure; Figure 3 This is an enlarged structural schematic diagram of the bottom side tray plate in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the hoisting structure of a single-layer, single-row busbar in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the connectorless three-layer single-row busbar hoisting structure in Embodiment 2 of this utility model; Figure 6 yes Figure 5 Enlarged schematic diagram of the cross-sectional structure; Figure 7 This is a schematic diagram of the connectorless single-layer three-row busbar hoisting structure in Embodiment 3 of this utility model; Figure 8 yes Figure 7 Enlarged schematic diagram of the cross-sectional structure. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Terms such as "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, in the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be reasonably determined in conjunction with the specific content of the technical solution.

[0022] Example 1 A connectorless busbar assembly, such as Figures 1 to 4As shown, the hoisting system for the flexible busbar includes multiple pairs of Z-shaped hangers 1, round steel rods 2 that mate with each Z-shaped hanger 1, and multiple U-shaped support frames 3. The Z-shaped hangers 1 are symmetrically arranged in pairs and installed on the ceiling with expansion bolts. The upper end of each round steel rod 2 is fastened with nuts and then hung and connected to each Z-shaped hanger 1. The top two ends of each U-shaped support frame 3 are fastened with nuts and then hung and connected to the lower ends of a pair of round steel rods 2. Multiple U-shaped support frames 3 are spaced apart. The upper part is provided with busbar limiting and locking components 5 for fixing the upper and lower sides of the four flexible busbars 4 arranged in parallel, and for single-layer installation and single-row fixing. The flexible busbars 4 are all flat and thin sheet-like structures. The four flexible busbars 4 are installed and fixed between the busbar limiting and locking components 5 in a vertical parallel arrangement along the width direction. At the side of the busbar limiting and locking components 5 along the width direction, PE protective conductors 6 with flat and thin sheet-like structures are also vertically installed in parallel. In this way, the four flexible busbars 4 and the PE protective conductors 6 form a three-phase five-wire high-current power transmission line.

[0023] Continue as Figures 1 to 4 As shown, the busbar limiting and locking component 5 includes an upper buckle plate 50 and a bottom tray plate 51. The upper buckle plate 50 is a fixing clip integrally formed from aluminum alloy material, and the bottom tray plate 51 is a support component integrally stamped and folded from color-coated steel plate. The bottom tray plate 51 also has double-layered edge folded plates 52 on both sides for fixing the PE protective conductor 6. The corresponding sides of the upper buckle plate 50 and the bottom tray plate 51 have U-shaped curved groove structures for locking and limiting the upper and lower ends of multiple vertically arranged flexible busbars 4. After the upper buckle plate 50 and the bottom tray plate 51 are joined, the two ends are respectively connected with locking screws 7 and nuts 8 to fix the four flexible busbars 4 together and to fix the bottom side of the entire busbar limiting and locking component 5 to the U-shaped support frame 3.

[0024] In this embodiment, shock-absorbing strips 9 for limiting and fixing the upper and lower ends of the flexible busbar 4 are respectively embedded in the corresponding U-shaped grooves 53 of the upper buckle plate 50 and the bottom tray plate 51.

[0025] Example 2 like Figure 5 and Figure 6As shown, the difference between this embodiment and Embodiment 1 is that, through the busbar limiting and locking component 5, the four flexible busbars 4 are arranged side by side and fixed on the upper and lower sides, and then fixed in a single row at each layer, and installed in parallel stacked arrangement in two layers to form a three-phase five-wire high-current power transmission line with a two-layer stacked layout structure, which effectively improves the power transmission capacity. Among them, the bottom busbar limiting and locking component 5 is fixed to the bottom side of the U-shaped support frame 3 by the locking screw 7 and nut 8 on the bottom side. The busbar limiting and locking component 5 of each layer is also connected to the two sides of the U-shaped support frame 3 by riveting or screwing through the side folding plates 52 on both sides to realize the two-layer stacked layout.

[0026] Example 3 like Figure 7 and Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that, through the busbar limiting and locking components 5, four flexible busbars 4 are arranged side by side and fixed at the top and bottom. They are then arranged in four columns on the same layer and fixed side by side, forming a single-layer, four-column, spaced-apart three-phase five-wire high-current power transmission line, which also effectively improves the power transmission capacity. Furthermore, adjacent busbar limiting and locking components 5 are riveted to both sides of the U-shaped limiting frame 10 via side folding plates 52 on both sides. Correspondingly, the outer busbar limiting and locking components 5 are riveted to both sides of the U-shaped support frame 3 via the outer side folding plates 52.

[0027] In the above embodiments, through the effective cooperation of the U-shaped support frame 3 and the busbar limiting and locking component 5, the installation and fixing structure of the busbar, after the four flexible busbars 4 are arranged side by side with upper and lower limiting and fixing and the PE protective conductor 6 is assembled, can adopt a single-layer single-row or single-layer multi-row hoisting structure, or a multi-layer single-row hoisting structure, effectively reducing the installation difficulty and improving the convenience and reliability of installation. At the same time, since the flexible busbar 4 can be easily bent in the thickness direction and has high rigidity in the width direction, during the assembly process, the U-shaped support frame 3 and the busbar limiting and locking component 5 can effectively cooperate with the flexible busbar 4 to bend into any spatial configuration, facilitating the wiring of the busbar installation, adapting to complex wiring environments, effectively reducing the difficulty of existing busbar assembly and installation, and improving on-site construction efficiency.

[0028] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. All equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A connectorless busbar assembly for hoisting flexible busbars, characterized in that, It includes multiple pairs of Z-shaped hanging components, round steel rods that cooperate with each Z-shaped hanging component, and multiple U-shaped support frames. The Z-shaped hanging components are symmetrically arranged in pairs and are supported and installed on the ceiling by expansion bolts. Each of the round steel rods is fastened with a nut at its upper end and then hung and connected to each Z-shaped hanging component. The top two ends of each U-shaped support bracket are fastened with nuts and then hung and connected to the lower ends of a pair of round steel rods; The U-shaped support frame with multiple intervals is provided with busbar limiting and locking components for multiple flexible busbars arranged in parallel and fixed on the upper and lower sides, installed in a single layer or at least two layers in parallel superposition, and fixed in a single row or arranged in at least two rows in a single layer; The flexible busbars are all flat, thin sheet-like structures, and multiple flexible busbars are arranged vertically side by side along the width direction and fixed between the busbar limiting and locking components. The busbar limiting and locking component also has a PE protective conductor with a flat, thin sheet structure installed vertically side by side along its width direction.

2. The connectorless busbar device according to claim 1, characterized in that: The busbar limiting and locking component includes an upper snap-on plate and a bottom tray plate. The upper snap-on plate and the bottom tray plate have U-shaped curved groove structures on their corresponding sides, which are U-shaped grooves used to snap and limit the upper and lower ends of multiple vertically arranged flexible busbars. After the upper snap-on plate and the bottom tray plate are joined together, the two ends are respectively connected with locking screws and nuts to fix multiple flexible busbars together or to fix the bottom side of the entire busbar limiting and locking component to the U-shaped support frame.

3. A connectorless busbar device according to claim 2, characterized in that: The upper buckle plate and the lower tray plate are respectively inlaid with shock-absorbing strips that limit and fix the upper and lower ends of the flexible busbar in the corresponding U-shaped grooves.

4. A connectorless busbar device according to claim 2, characterized in that: The upper buckle plate is a fixing clip made of aluminum alloy in one piece.

5. A connectorless busbar device according to claim 2, characterized in that: The bottom tray plate also has double-layered folded edge plates on both sides, which are used for fixing and connecting the PE protective conductor or for fastening to both sides of the U-shaped support frame.

6. A connectorless busbar device according to claim 5, characterized in that: The bottom side pallet is a support component formed by integral stamping and folding of color-coated steel sheet.

7. A connectorless busbar device according to claim 1, characterized in that: The flexible busbar adopts a flat sheet structure with a thickness of 3.0 mm.

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