A new type of fire-resistant bus duct

Abstract

The utility model discloses a novel fire -resistant bus duct belongs to bus duct technical field. The fire -resistant bus duct, include: conductor, side plate is located in the left and right sides of conductor, cover plate is located in the upper and lower both ends of conductor, first fire -resistant board is located between conductor and cover plate, the upper and lower both ends of side plate are equipped with first edge folding, the both sides of cover plate are equipped with second edge folding respectively, and the second edge folding is backfolding and forms the mounting groove, and first edge folding stretches into the mounting groove, and the both sides of first fire -resistant board stretch into the mounting groove, and be between first edge folding and second edge folding. The mounting groove formed by the second edge folding of the cover plate of the application is used to install the edge folding of first fire -resistant board and side plate, so that the similar buckle fixed mode can be formed, and the second edge folding also plays the role of supporting side plate, first fire -resistant board when using, and the cover plate, side plate is convenient for the installation and overhauling of bus duct and the dismounting of side plate, and the second edge folding is split type with bus duct, and can be connected through the fixing piece, and is convenient to dismount.

Description

Technical Field

[0001] This utility model belongs to the field of busbar technology, specifically relating to a new type of fire-resistant busbar. Background Technology

[0002] Fire-resistant busbar trunking consists of a shell coated with fire-retardant paint, busbars wrapped with fire-resistant mica tape, and a support structure made of fire-resistant insulating material. Fire-resistant busbar trunking requires excellent insulation performance, enabling it to operate continuously not only in normal environments but also for more than one hour in a fire.

[0003] Chinese patent document CN203434566U discloses an ultra-thin, densely packed fire-resistant busbar trunking. The busbar trunking includes an outer shell and a conductor assembly placed within the outer shell. The outer shell is formed by fixing two opposing, bow-shaped first and second side bodies with steel rivets. The conductor assembly includes a first fire-resistant insulation layer and multiple layers of conductor sheets tightly arranged within the first fire-resistant insulation layer. Each conductor sheet is covered with a second fire-resistant insulation layer. An asbestos rope, which provides fire resistance and reduces the volume of the busbar trunking, is placed between the conductor assembly and the filler. A filler for high-temperature insulation is placed between the conductor assembly and the outer shell. This busbar trunking features high protection level, good mechanical strength, compact and ultra-thin design, small size, good heat dissipation, low temperature rise, and good dynamic and thermal stability. It also boasts high mechanization in production, simple process, high production efficiency, high material utilization, low production cost, good fire resistance, strong practicality, safe and reliable use, and high energy efficiency.

[0004] In the above-mentioned patented solution, the first side body and the second side body are fixed by rivets. Rivet fixing is a common fixing connection method for bus trunking shells, but it is troublesome to operate when the bus trunking needs to be disassembled, repaired, or replaced. Utility Model Content

[0005] This utility model provides a novel fire-resistant busbar trunking to solve the above-mentioned technical problems.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: A novel fire-resistant busbar trunking includes: a conductor; side plates disposed on the left and right sides of the conductor; a cover plate disposed on the upper and lower ends of the conductor; a first fire-resistant plate disposed between the conductor and the cover plate; the upper and lower ends of the side plates are provided with first folded edges; the cover plate is provided with second folded edges on both sides, and the second folded edges are folded back to form an installation groove; the first folded edges extend into the installation groove; the two sides of the first fire-resistant plate extend into the installation groove and are located between the first folded edges and the second folded edges.

[0007] Furthermore, the height of the mounting groove is equal to the sum of the thickness of the first folded edge and the side of the first fire-resistant board; the connecting parts of the first folded edge, the second folded edge, and the first fire-resistant board are connected and fixed by fasteners.

[0008] Furthermore, the height of the side plate is greater than the height of the conductor; the first fire-resistant plate is provided with a protrusion that matches the groove formed by the height difference between the conductor and the side plate.

[0009] Furthermore, the fire-resistant busbar trunking also includes: a second fire-resistant plate, which is disposed between the conductor and the side plate; the upper and lower ends of the second fire-resistant plate are connected to the first fire-resistant plate.

[0010] Furthermore, the outer surface of the side plate is provided with protruding strips; the protruding strips are provided at intervals in the height direction of the side plate.

[0011] Furthermore, the height of the convex strip is 0.3-0.5 times the width of the first folded edge.

[0012] Furthermore, the fire-resistant busbar trunking also includes: an outer side plate, disposed on the outer side of the side plate; the inner side of the outer side plate is connected to the protruding strip.

[0013] Furthermore, the outer side plate is I-shaped; the inner sides of the upper and lower ends of the outer side plate extend into the second groove formed between the two protruding strips near the second folded edge, and the outer side is connected and fixed to the second folded edge, the first fire-resistant plate, and the first folded edge via a fixing member.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The mounting groove formed by the second fold of the cover plate is used to install the fold of the first fire-resistant plate and the side plate. In this way, a snap-fit-like fixing method can be formed, which facilitates the installation of the busbar trunking and the disassembly and assembly of the cover plate and the side plate during maintenance. The second fold and the busbar trunking are separate, and there is partial overlap during assembly. They can be connected and fixed by fasteners, which makes it convenient and quick to disassemble and assemble the busbar trunking when needed.

[0015] 2. The height of the side plate is higher than the height of the conductor. The groove formed by the height difference between the two matches the raised structure of the first fire-resistant plate, which makes the installation of the first fire-resistant plate more stable.

[0016] 3. The second fire-resistant board is located inside the side plate and provides fire protection in the vertical direction. When used in combination with the first fire-resistant board, it can make the busbar trunking achieve better fire resistance and improve its fire resistance performance.

[0017] 4. The raised strips on the outer side of the side plate help to conduct the heat generated by the conductor to the side plate, and then dissipate the heat outward through the raised strips, thus improving the heat dissipation effect. The outer side plate can prevent dust and other debris from accumulating on the raised strips and side plate during use, so as not to affect the heat dissipation effect. The side plate, cover plate, first fireproof plate and side plate are connected and fixed by fasteners, which facilitates disassembly, meets the needs of maintenance and replacement, and improves efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the front view of the present invention.

[0020] Figure 2 This is a longitudinal sectional view of the present invention.

[0021] Figure 3 for Figure 2 An unfolded diagram.

[0022] Figure 4 This is a top view of the present invention.

[0023] Figure 5 This is the left view of the present invention.

[0024] Figure 6 This is the front view of the present invention (with outer side panels).

[0025] Reference numerals: 1-Conductor, 2-Side plate, 21-First fold, 22-Raised strip, 23-Second groove, 3-Cover plate, 31-Second fold, 32-Mounting groove, 4-First fire-resistant plate, 41-Protrusion, 5-Second fire-resistant plate, 6-Outer side plate Detailed Implementation To facilitate a better understanding of this utility model, the following examples are provided in conjunction with the accompanying drawings. These examples fall within the protection scope of this utility model, but do not limit the protection scope of this utility model.

[0026] Example 1 A new type of fire-resistant busbar trunking, such as Figures 1-5As shown, it includes: a conductor 1; side plates 2, disposed on the left and right sides of the conductor 1; a cover plate 3, disposed on the upper and lower ends of the conductor 1; a first fire-resistant plate 4, disposed between the conductor 1 and the cover plate 3; the upper and lower ends of the side plates 2 are provided with first folded edges 21; the two sides of the cover plate 3 are respectively provided with second folded edges 31, and the second folded edges 31 are folded back to form a mounting groove 32; the first folded edges 21 extend into the mounting groove 32; the two sides of the first fire-resistant plate 4 extend into the mounting groove 32 and are located between the first folded edges 21 and the second folded edges 31.

[0027] The conductors are arranged in several blocks along the width of the cover plate, and the outside is covered with existing insulating material to meet the insulation requirements between adjacent conductors.

[0028] The cover plate and side plates are made of existing conventional materials. Together, they form a protective shell for the conductor, which protects the conductor.

[0029] The first fire-resistant board has high temperature resistance properties, which can create a relatively safe operating environment for the conductors of the busbar in the event of an accident such as a fire, and meet the usage requirements of fire scenarios; the first fire-resistant board is made of existing materials, such as ceramic fiber.

[0030] The second fold of the cover plate forms an open mounting groove on one side, which can be used to install the fold of the first fire-resistant plate and the side plate. This creates a snap-fit-like fixing method, and the second fold also supports the side plate and the first fire-resistant plate when in use. At the same time, it also facilitates the installation of the busbar trunking and the disassembly and assembly of the cover plate and the side plate during maintenance.

[0031] The first fold of the side panel is straight, which makes it easy to install directly into the mounting groove. At the same time, the width of the first fold should be equal to or slightly less than the width of the mounting groove so that the first fold can be fully installed into the mounting groove.

[0032] like Figures 1-5 As shown, the height of the mounting groove 32 is equal to the sum of the thickness of the first folded edge 21 and the side of the first fire-resistant plate 4; the connecting parts of the first folded edge 21, the second folded edge 31, and the first fire-resistant plate 4 are connected and fixed by fasteners.

[0033] To ensure the stability of the busbar trunking installation, fasteners are needed to secure the contact points of components such as the cover plate and side plates. Existing fasteners such as rivets and bolts can be used; however, bolts are preferred for easy installation and disassembly.

[0034] Since the second fold is U-shaped, in order to facilitate the installation and disassembly of the various components of the busbar trunking, the second fold can be designed to be a separate connection with the cover plate; the two connecting parts overlap and are fixed by fasteners. When disassembly and maintenance are required, the separate second fold is easier and faster to disassemble and assemble.

[0035] Holes are pre-drilled at corresponding positions on the second fold, cover plate, first fire-resistant plate, and side plate of the busbar trunking. Before assembly, install all components of the busbar trunking, and then use fasteners, such as bolts, to pass through the second fold, cover plate, first fire-resistant plate, and first fold of the side plate in sequence, and then tighten them with nuts to fix them. When disassembly is required, unscrew the nuts of each bolt, remove the bolts, and then remove each component. The external joint where the second fold connects to the cover plate can be treated with existing fireproof sealant.

[0036] Example 2 The busbar trunking in this application also has the following technical features: like Figures 1-5 As shown, the height of the side plate 2 is greater than the height of the conductor 1; the first fire-resistant plate 4 is provided with a protrusion 41, which matches the groove formed by the height difference between the conductor 1 and the side plate 2.

[0037] The mounting groove is used to install the first folded edge and the first fire-resistant edge of the side panel. Therefore, the height of the mounting groove should meet certain requirements to ensure smooth installation.

[0038] The height of the side plate is higher than the height of the conductor, and the height difference between the two forms a groove, which makes the installation of the first fire-resistant plate more stable.

[0039] Example 3 The busbar trunking in this application also has the following technical features: like Figures 1-5 As shown, the fire-resistant busbar trunking also includes: a second fire-resistant plate 5, which is disposed between the conductor 1 and the side plate 2; the upper and lower ends of the second fire-resistant plate 5 are connected to the first fire-resistant plate 4.

[0040] like Figures 1-5 As shown, a raised strip 22 is provided on the outer side surface of the side plate 2; the raised strip 22 is provided at intervals along the height direction of the side plate 2.

[0041] like Figures 1-5 As shown, the height of the protrusion 22 is 0.3-0.5 times the width of the first folded edge 21; the length of the protrusion is 0.2-0.5 times the length of the side plate.

[0042] The second fire-resistant plate is located on the inner side of the side plate and provides fire protection for the conductor in the vertical direction. When used in conjunction with the first fire-resistant plate, it enhances the fire resistance of the busbar trunking. There are four second fire-resistant plates, arranged in groups of two, connecting to the sides of the first fire-resistant plates at the top and bottom of the busbar trunking. The two groups of second fire-resistant plates are staggered and installed side-to-side during installation. Figure 2 , Figure 3 As shown, at this time, two second fire-resistant plates are installed on each side of the busbar trunking; the second fire-resistant plates, the first fire-resistant plates at the upper end and the first fire-resistant plates at the lower end of the busbar trunking can be integrated into a U-shaped structure, as shown. Figure 3 As shown; the second refractory board can be made of existing refractory materials, such as ceramic fiber.

[0043] Multiple sets of raised strips can be equidistantly arranged along the height direction of the side plate. The length of the raised strips is set along the length direction of the side plate, and the lengths of both can be the same. This helps to conduct the heat generated by the conductor during operation to the outside and dissipate the heat from the side plate to the outside, thereby achieving a better heat dissipation effect. Both the raised strips and the side plate are made of existing metal materials with good thermal conductivity, such as aluminum alloy materials with good thermal conductivity.

[0044] The raised strips can also be set longitudinally, with the orientation consistent with the height direction of the side plate, and multiple sets are set at intervals along their length.

[0045] Example 4 The busbar trunking in this application also has the following technical features: like Figure 6 As shown, the fire-resistant busbar trunking also includes: an outer side plate 6, which is disposed on the outer side of the side plate 2; the inner side of the outer side plate 6 is connected to the protrusion 23.

[0046] like Figure 6 As shown, the outer side plate 6 is I-shaped; the inner sides of the upper and lower ends of the outer side plate 6 extend into the second groove 23 formed between the two protruding strips 22 near the second fold 3, and the outer side is connected and fixed to the second fold 31, the first fire-resistant plate 4, and the first fold 21 by a fastener.

[0047] The outer side plates are respectively set on the outer side of the two side plates, which can prevent external dust and other debris from accumulating on the sides of the protrusions and side plates during operation, thus affecting the heat dissipation effect; the outer side plates can be made of existing materials with good thermal conductivity, such as aluminum alloy materials with good thermal conductivity.

[0048] The side plates, cover plates, first fire-resistant plates, and outer side plates are connected and fixed by fasteners. Holes are drilled at appropriate positions along the length of both sides of the side plates, cover plates, first fire-resistant plates, and outer side plates, and existing fasteners, such as bolts, are used to fix them through the holes. When maintenance and disassembly are required, the nuts of the bolts are loosened so that the side plates and other components can be removed, which meets the needs of maintenance and replacement and improves efficiency.

[0049] A heat dissipation zone can also be started on the outer side plate. The heat dissipation zone has heat dissipation holes, which facilitate the heat generated by the conductor to be conducted to the outer side plate and then dissipated outward through the heat dissipation holes. The heat dissipation zone can be long and narrow, consistent with the height direction of the side plate.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel fire-resistant busbar trunking system, characterized in that, include: Conductor (1); Side plates (2) are provided on the left and right sides of the conductor (1); Cover plate (3) is provided at the upper and lower ends of the conductor (1); The first fire-resistant plate (4) is disposed between the conductor (1) and the cover plate (3); The side plate (2) has a first folded edge (21) at both the top and bottom ends; The cover plate (3) has a second folded edge (31) on both sides, and the second folded edge (31) is folded back to form an installation groove (32); The first folded edge (21) extends into the mounting groove (32); The two sides of the first fire-resistant plate (4) extend into the mounting groove (32) and are located between the first folded edge (21) and the second folded edge (31).

2. The novel fire-resistant busbar trunking according to claim 1, characterized in that, The height of the mounting groove (32) is equal to the sum of the thickness of the first folded edge (21) and the side of the first fire-resistant plate (4); The first folded edge (21), the second folded edge (31), and the connecting parts of the first fire-resistant plate (4) are connected and fixed by fasteners.

3. The novel fire-resistant busbar trunking according to claim 2, characterized in that, The height of the side plate (2) is greater than the height of the conductor (1); The first fire-resistant plate (4) is provided with a protrusion (41) that matches the groove formed by the height difference between the conductor (1) and the side plate (2).

4. A novel fire-resistant busbar trunking system according to claim 3, characterized in that, Also includes: The second fire-resistant plate (5) is respectively disposed between the conductor (1) and the side plate (2); The upper and lower ends of the second fire-resistant board (5) are connected to the first fire-resistant board (4).

5. A novel fire-resistant busbar trunking system according to claim 4, characterized in that, The side plate (2) has a raised strip (22) on its outer side surface; The convex strips (22) are provided at intervals in the height direction of the side plate (2).

6. A novel fire-resistant busbar trunking system according to claim 5, characterized in that, The height of the protrusion (22) is 0.3-0.5 times the width of the first fold (21).

7. A novel fire-resistant busbar trunking system according to any one of claims 5 or 6, characterized in that, Also includes: An outer side plate (6) is provided on the outside of the side plate (2); The inner side of the outer side plate (6) is connected to the protrusion (22).

8. A novel fire-resistant busbar trunking system according to claim 7, characterized in that, The outer side plate (6) is I-shaped; The inner sides of the upper and lower ends of the outer plate (6) extend into the second groove (23) formed between the two protrusions (22) near the second fold (31), and the outer side is connected and fixed to the second fold (31), the first fire-resistant plate (4), and the first fold (21) by a fixing member.

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