Reinforced shell and busbar integrated dense bus duct

Abstract

The utility model discloses reinforced shell keeps integrated intensive bus duct, including upper cover, lower cover, front side plate, back side plate and female row conductor, the inside middle of upper cover and lower cover all is provided with the inner baffle that extends along the height direction between upper cover and lower cover, and the inner baffle is used as the inside PE line of entire bus duct shell body inside independent dispersion when single -phase ground, and upper cover, lower cover, front side plate and back side plate jointly constitute the shell PE line when single -phase ground as the shell accident current dispersion, and front side plate and back side plate all adopt the integrative forming of color coated steel sheet, still install a plurality of vertical placement's semicircular reinforcing rib on the outer side wall of front side plate and back side plate, and effectively improve the mechanical strength of entire bus duct, and the shell PE line is realized with inside PE line entire bus duct shell keeps integrated protection, and simultaneously because only both sides adopt color coated steel sheet, and the electromagnetic eddy current problem of entire bus duct is solved by the isolation of shell keeps integrated upper cover and lower cover.

Description

Technical Field

[0001] This utility model relates to the field of busbar trunking technology in power cables, and in particular to reinforced integrated shell and protection dense busbar trunking. Background Technology

[0002] With the development of industrial automation, factories are becoming larger and larger, and their electricity consumption is also increasing. Busbar trunking has become a development trend to replace cables. As an important piece of equipment in the power system, busbar trunking plays an important role in the transmission and distribution of electricity. Busbar trunking is a closed metal device made of copper and aluminum busbar columns, used to distribute a large amount of power to various components of the distributed system.

[0003] Existing busbar assembly structures suffer from problems such as simple structure and poor wind and earthquake resistance. In addition, due to the high temperature and fire resistance requirements of the power environment, existing busbars are unable to meet the usage needs.

[0004] Especially in large-span industrial plants, the horizontal installation of busbar trunking requires greater mechanical strength. The existing all-aluminum alloy casing busbar trunking is insufficient to meet the engineering requirements. If an all-steel casing busbar trunking is used, electromagnetic eddy currents will be generated on the busbar trunking, affecting its current carrying capacity and producing noise during operation. Furthermore, the surface treatment during the production of steel casing busbar trunking will cause environmental pollution.

[0005] Therefore, it is imperative to improve the assembly structure of the existing busbar trunking as needed. Utility Model Content

[0006] The reinforced integrated shell and insulation busbar trunking provided by this utility model improves the assembly structure on both sides by adopting a reinforcing rib structure of color-coated steel plate, which not only improves mechanical strength, but also solves the electromagnetic eddy current problem through the isolation of the cover plate, effectively improving the insulation performance between busbars and the stability of electrical connection, and effectively improving the reliability of the busbar trunking.

[0007] The technical solution adopted by this utility model to solve its technical problem is: A reinforced integrated housing busbar trunking system is used to increase the structural strength of the conductive busbars, including at least one row of upper cover plates, at least one row of lower cover plates, at least one row of front side plates, at least one row of rear side plates, and at least one row of busbar conductors. The upper cover plate and the lower cover plate are respectively placed on the upper and lower sides of the single-row, double-row, or triple-row stacked busbar conductors for sealing the upper and lower sides. The front side plate and the rear side plate are arranged in a single row, double row or triple row and are respectively placed on the front and rear sides of each row of busbar conductors in a single row, double row or triple row stack, for sealing the front and rear sides of each row. Both the upper cover plate and the lower cover plate have an inner partition plate extending along the height direction between them. The inner partition plate and the upper cover plate or the lower cover plate form a "T" shaped structure. The upper cover plate and the lower cover plate are connected by a pair of symmetrical "T" shaped structures to form an "I" shaped structure that separates the front and back of each row of busbar conductors. The inner partition plate on the "I" shaped structure corresponding to the middle part of the front and back of each pair of busbar conductors is used as an internal PE line for independent evacuation of the fault current inside the entire busbar trunking when a single phase is grounded. The upper cover plate, the lower cover plate, the front side plate, and the rear side plate together form the PE line of the enclosure, which serves as the evacuation line for the enclosure fault current in the event of a single phase grounding. Both the front and rear side plates are integrally formed from color-coated steel plates, and are folded at both ends to form "]" shaped flange structures that facilitate sealing and fastening of the upper and lower sides. Multiple vertically placed semi-circular reinforcing ribs are also evenly installed on the outer side walls of the front and rear side plates along the length direction to increase the strength of the front or rear side plates.

[0008] Preferably, a double-row connector with a square tube structure is provided between the lower cover plate and the upper cover plate corresponding to the upper and lower layer docking ends of the double-row or triple-row stacked busbar conductors, for nesting and locking between the upper and lower cover plates.

[0009] Preferably, the two sides of the semi-circular reinforcing rib also extend integrally as riveting positions, forming a flat plate that is fastened to the front or rear side plate without nails.

[0010] Preferably, the upper cover plate and the lower cover plate are folded at both ends to form a U-shaped platform structure that facilitates heat dissipation.

[0011] Preferably, the end connections of the upper cover plate, the lower cover plate, the front side plate, and the rear side plate are respectively provided with a V-shaped aluminum-magnesium alloy auxiliary side plate for sealing the end side covers, an angle iron plate for end mating and locking connection, and connecting screws.

[0012] Preferably, the V-shaped aluminum-magnesium alloy side plate is further provided with an L-shaped sealing strip for sealing connection at the mating end face of the front side plate and the rear side plate, respectively.

[0013] The beneficial effects of this utility model are: This utility model provides a reinforced, integrated protective busbar trunking system. The outer and inner PE wires provide integrated protection for the entire busbar trunking. The assembly structure on both sides is improved, with the front and rear side plates using color-coated steel plates and semi-circular reinforcing ribs, effectively enhancing the mechanical strength of the entire busbar trunking. Furthermore, since only the sides use color-coated steel plates, the integrated upper and lower cover plates effectively isolate and resolve the electromagnetic eddy current problem of the entire busbar trunking, significantly improving the insulation performance between busbars and the stability of electrical connections, thus enhancing the reliability of the busbar trunking. Additionally, the color-coated steel plate outer shells on both sides are finished products from the steel plate factory, directly assembled after processing without surface treatment, thus preventing environmental pollution.

[0014] Furthermore, the sides of the color-coated steel plates on both sides of the front and rear side plates are double-layered with rolled edges, which can improve the mechanical strength of the side plates, better protect the cross-section, prevent rust, and reduce corrosion. The bending of the ends of the side plates and their assembly with the attached side plates can effectively improve the protection level.

[0015] In addition, the semi-circular reinforcing rib structure is also made of color-coated steel plate and integrally formed by cold bending machine. The middle is a semi-circular structure, which makes the stress more uniform, reduces stress concentration, and improves longitudinal strength. The flat plates on the left and right sides of the semi-circular reinforcing rib are used as riveting positions for nail-free riveting fastening with the front or rear side plate.

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure after removing the semi-circular reinforcing rib in Embodiment 1 of this utility model; Figure 2 This is an enlarged three-dimensional structural diagram of the front or rear side plate and reinforcing ribs in Embodiment 1 of this utility model; Figure 3 This is an enlarged cross-sectional view of the front or rear side plate in Embodiment 1 of this utility model; Figure 4 This is an enlarged schematic diagram of the cross-sectional structure of the semi-circular reinforcing rib in Embodiment 1 of this utility model; Figure 5 This is a three-dimensional structural diagram of the assembly structure in Embodiment 1 of this utility model; Figure 6 yes Figure 5 A magnified structural diagram of part A in the diagram; Figure 7 This is a schematic diagram of the cross-sectional structure after removing the semi-circular reinforcing rib in Embodiment 2 of this utility model; Figure 8 This is a three-dimensional enlarged structural diagram of the double-row connector in Embodiment 2 of this utility model; Figure 9 This is a three-dimensional structural diagram of the assembly structure in Embodiment 2 of this utility model. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0022] Example 1 Reinforced integrated shell and shield busbar trunking is used to increase the structural strength of the conductive busbars, such as... Figures 1 to 6 As shown, it includes an upper cover plate 1, a lower cover plate 2, a front side plate 3, a rear side plate 4, and four-phase busbar conductors 5. The upper cover plate 1 and the lower cover plate 2 are respectively placed on the upper and lower sides of a single row of four-phase busbar conductors 5 for sealing the upper and lower sides. The two ends of the upper cover plate 1 and the lower cover plate 2 are folded to form a U-shaped platform structure for easy heat dissipation. The front side plate 3 and the rear side plate 4 are arranged in a single row on the front and rear sides of a single row of four-phase busbar conductors 5 for sealing the front and rear sides of each row. The inner middle of the upper cover plate 1 and the lower cover plate 2 is provided with a vent extending along the height direction between the upper cover plate 1 and the lower cover plate 2. The inner partition 6, together with the upper cover plate 1 or the lower cover plate 2, forms a "T" shaped structure. The upper cover plate 1 and the lower cover plate 2 are connected by a pair of symmetrical "T" shaped structures to form an "I" shaped structure that separates the front and rear of the four-phase busbar conductors 5. The inner partition 6 on the "I" shaped structure in the middle of the front and rear of the four-phase busbar conductors 5 is used as an internal PE line for independent evacuation of the internal fault current of the entire busbar trunking when a single phase ground occurs. The upper cover plate 1, the lower cover plate 2, the front side plate 3 and the rear side plate 4 together form the outer shell PE line for evacuation of the outer shell fault current when a single phase ground occurs.

[0023] like Figures 1 to 6 As shown, both the front side plate 3 and the rear side plate 4 are integrally formed from color-coated steel plates, and are folded at both ends to form a "]" shaped flange structure that facilitates sealing and fastening of the upper and lower sides. Multiple vertically placed semi-circular reinforcing ribs 7 are evenly installed on the outer side walls of the front side plate 3 and the rear side plate 4 along the length direction to increase the strength of the front side plate 3 or the rear side plate 4. The semi-circular reinforcing ribs 7 also have integrally extended protrusions on both sides as riveting positions, and are fastened to the front side plate 3 or the rear side plate 4 without nails.

[0024] Among them, such as Figure 5 and Figure 6 As shown, at the end connections of the upper cover plate 1, lower cover plate 2, front side plate 3, and rear side plate 4, a V-shaped aluminum-magnesium alloy auxiliary side plate 8 for sealing the end side covers, an angle iron plate 9 for end mating and locking connections, and a connecting screw 10 are respectively provided; at the mating end faces of the V-shaped aluminum-magnesium alloy auxiliary side plate with the front side plate 3 and the rear side plate 4, an L-shaped sealing strip 11 for sealing connections is also provided. In this embodiment, the V-shaped aluminum-magnesium alloy auxiliary side plate 8 adopts a V-shaped structure, close to the large bend of the conductor, to reduce the internal space of the connector. It is made of aluminum-magnesium alloy material, with serrated heat sinks on the outer side to improve heat dissipation performance; a semi-circular groove is provided on the inner side of the V-shaped aluminum-magnesium alloy auxiliary side plate 8 near the conductor and at the corner of the V-shaped aluminum-magnesium alloy auxiliary side plate 8, so that the right-angle L-shaped sealing strip 11 can be inserted to press the copper busbar conductor on one side and the main body side plate on the other side to improve the waterproofness of the bus end.

[0025] In this embodiment, the outer PE line and the inner PE line achieve integrated protection for the entire busbar trunking. At the same time, the assembly structure on both sides is improved. The front side plate 3 and the rear side plate 4 adopt color-coated steel plates and semi-circular reinforcing ribs 7 on both sides, which effectively improves the mechanical strength of the entire busbar trunking. Since only the two sides are made of color-coated steel plates, the electromagnetic eddy current problem of the entire busbar trunking is solved by the integrated upper cover plate 1 and lower cover plate 2, which effectively improves the insulation performance between busbars and the stability of electrical connections, thus effectively improving the reliability of the busbar trunking.

[0026] Example 2 like Figures 7 to 9 As shown, the difference between this embodiment and Embodiment 1 is that the upper cover plate 1 and the lower cover plate 2 are respectively placed on the upper and lower sides of the double-row stacked four-phase busbar conductors 5 for sealing the upper and lower sides; the front side plate 3 and the rear side plate 4 are arranged in two rows and respectively placed on the front and rear sides of each row of double-row stacked four-phase busbar conductors 5 for sealing the front and rear sides of each row; a double-row connector 12 with a square tube structure is also provided between the lower cover plate 2 and the upper cover plate 1 at the upper and lower connecting ends of the double-row stacked four-phase busbar conductors 5 for nesting and locking between the upper and lower cover plates 2.

[0027] In this embodiment, the double-row connector 12 is applied to double-row, triple-row, or higher busbar trunking to connect and fix multiple single-row busbars. It is made of aluminum-magnesium alloy and designed as a square tube. Semi-circular slots are provided at the front ends of both the top and bottom surfaces. When the double-row connector 12 is applied to both ends, long, circular sealing strips are fitted to improve the waterproofness of the ends. The single-row busbars on the upper and lower sides are fastened to the upper and lower surfaces of the double-row connector 12 with flange bolts. After the double-row connector 12 is fixed with rivet nuts on the sides, the V-shaped aluminum-magnesium alloy side plate 8 is fastened with screws, thereby improving the mechanical reliability and waterproofness of the busbar ends. The middle position of the busbars is set at fixed intervals according to length. The application of the double-row connector 12 differs from traditional busbars; it features a layered perforated design to allow for high-current double-row or higher busbars, improving heat dissipation, reducing heat accumulation, and enhancing power transmission reliability.

[0028] In the two embodiments above, the upper cover plate, lower cover plate, front side plate, and rear side plate are effectively fixed and connected at the four corners by V-shaped aluminum-magnesium alloy side plates, angle iron plates, and connecting screws, effectively sealing and fixing the corresponding busbar conductors. The double busbar PE shell-protection integrated structure, composed of the outer shell PE line and the inner PE line, effectively increases the leakage current flow rate inside and outside the shell, avoiding insufficient flow rate that prevents leakage current from being discharged in time, avoiding uncertainty in the overcurrent capacity between the shell and the independent PE, effectively avoiding uneven three-phase voltage drop, ensuring temperature rise in all parts, and effectively improving grounding protection. At the same time, color-coated steel plates are used on both sides, and the upper and lower cover plates, which are integrated with the shell, isolate and solve the electromagnetic eddy current problem of the entire busbar trunking, effectively improving the insulation performance and electrical connection stability between the busbars.

[0029] 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 reinforced, integrated, high-density busbar trunking system, used to increase the structural strength of conductive busbars, characterized in that... It includes at least one row of upper cover plates, at least one row of lower cover plates, at least one row of front side plates, at least one row of rear side plates, and at least one row of busbar conductors; The upper cover plate and the lower cover plate are respectively placed on the upper and lower sides of the single-row, double-row, or triple-row stacked busbar conductors for sealing the upper and lower sides. The front side plate and the rear side plate are arranged in a single row, double row or triple row and are respectively placed on the front and rear sides of each row of busbar conductors in a single row, double row or triple row stack, for sealing the front and rear sides of each row. Both the upper cover plate and the lower cover plate have an inner partition plate extending along the height direction between them. The inner partition plate and the upper cover plate or the lower cover plate form a "T" shaped structure. The upper cover plate and the lower cover plate are connected by a pair of symmetrical "T" shaped structures to form an "I" shaped structure that separates the front and rear of each row of busbar conductors. The inner partition plate on the "I" shaped structure corresponding to the middle part of the front and rear of each pair of busbar conductors is used as an internal PE line for independent evacuation of the fault current inside the entire busbar trunking when a single phase is grounded. The upper cover plate, the lower cover plate, the front side plate, and the rear side plate together form the PE line of the enclosure, which serves as the evacuation line for the enclosure fault current in the event of a single phase grounding. Both the front and rear side plates are integrally formed from color-coated steel sheets, and are folded at both ends to form "]" shaped flange structures that facilitate sealing and fastening of the upper and lower sides. The outer walls of the front and rear side plates are also uniformly equipped with multiple vertically placed semi-circular reinforcing ribs along the length direction to increase the strength of the front or rear side plates.

2. The reinforced integrated shell-protection dense busbar trunking according to claim 1, characterized in that: Between the lower cover plate and the upper cover plate corresponding to the upper and lower layer docking ends of the double-row or triple-row stacked busbar conductors, a double-row connector with a square tube structure is also provided for nesting and locking between the upper and lower cover plates.

3. The reinforced integrated shell-protection dense busbar trunking according to claim 1, characterized in that: The semi-circular reinforcing rib also extends integrally on both sides as a riveting position, forming a flat plate that is fastened to the front or rear side plate without nails.

4. The reinforced integrated shell-protection dense busbar trunking according to claim 1, characterized in that: The upper cover and the lower cover are folded at both ends to form a "U"-shaped platform structure that facilitates heat dissipation.

5. The reinforced integrated shell-protection dense busbar trunking according to claim 1, characterized in that: The upper cover plate, the lower cover plate, the front side plate, and the rear side plate are also provided with V-shaped aluminum-magnesium alloy side plates for sealing the end side covers, angle iron plates for end mating and locking connections, and connecting screws at the end connection points.

6. The reinforced integrated shell-protected dense busbar trunking according to claim 5, characterized in that: The V-shaped aluminum-magnesium alloy side plate is further provided with L-shaped sealing strips for sealing connection at the mating end faces of the front side plate and the rear side plate, respectively.

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