Special-shaped bus passing bridge

Abstract

The utility model relates to a special-shaped bus passing bridge, and belongs to the technical field of electrical equipment. A space for accommodating copper bars is formed by piers fixed at the top end of a low-voltage cabinet and a bridge body connected with the piers, and the copper bars with different currents are arranged in the piers and the bridge body. The utility model has the advantages of ingenious conception, convenience in installation and low cost. The special-shaped bus is good in heat dissipation performance, high in strength and stable in operation. The generation of eddy current can be effectively prevented; assembly can be adjusted according to on-site installation environment, and assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a special-shaped busbar wire-passing bridge and belongs to the technical field of electrical equipment. BACKGROUND

[0002] The wire-passing bridge is connected with two or more low-voltage cabinets arranged in different ways and is used for power transmission through the internal conductive copper bars. Usually, due to the limited space of the power distribution room, one system cannot be placed with one arrangement, and two arrangements need to be placed face to face. Therefore, the wire-passing bridge / dense busbar slot needs to be connected. In the early stage of design, the design institute usually marks the distance between the two arrangements of the cabinet. However, when the construction of the low-voltage cabinet channel steel is carried out, some errors often occur, which often leads to the inaccurate distance between the wire-passing bridges, and the bridges designed in advance cannot be installed on site. In addition, the traditional wire-passing bridge is connected with a rectangular busbar, which is installed in the closed bridge body. It has the following disadvantages: 1. poor heat dissipation, 2. small adjustment distance of the rectangular busbar, some errors on site will lead to installation failure, 3. high cost of the rectangular busbar, and 4. low installation efficiency. SUMMARY

[0003] The utility model aims at the problems existing in the prior art and provides a special-shaped busbar wire-passing bridge to improve the assembly efficiency.

[0004] In order to achieve the above purpose, the special-shaped busbar wire-passing bridge comprises a bridge pier fixed at the top end of a low-voltage cabinet and a bridge body connected with the bridge pier to form a space for accommodating copper bars, and different current copper bars are arranged in the bridge pier and the bridge body.

[0005] The bridge pier is arranged with staggered rectangular bars, and the bridge body is arranged with mutually parallel special-shaped bars. Because the copper bars in the bridge pier are bent, the rectangular copper bars have higher flexibility. The special-shaped bars in the bridge body have high strength, large current capacity, good heat dissipation performance, and lower cost.

[0006] The bridge body is provided with a supporting bracket, and the special-shaped bars are fixed on the supporting bracket through special-shaped bar clamps. The special-shaped bars are connected without holes, and the interval can be easily adjusted if there is a difference in the interval on site.

[0007] The special-shaped bar clamp comprises a body with a cross section in the shape of "L" which is composed of a vertical face and a horizontal face bent along the bottom edge of the vertical face, a first through hole for fixing an insulating sheath of the special-shaped bar is arranged on the vertical face, a second through hole for fixing a hoisting reinforcing beam is arranged on the upper part of the first through hole, and a third through hole for fixing a bridge body supporting bracket is arranged on the horizontal face. The stable connection of the busbar in the bridge body can be ensured. The material of the special-shaped bar clamp is an aluminum plate, which can effectively prevent the generation of eddy current.

[0008] The bridge body has at least two sections, and the length and the number of sections of the bridge body are matched with the distance between the low-voltage cabinets. The number of the bridge body can be increased or decreased according to the needs.

[0009] Each section of the bridge is equipped with a hoisting reinforcement beam, which is connected to a special-shaped busbar clamp.

[0010] The rectangular and irregularly shaped rows are connected by T-bolts. Each T-bolt consists of a flat nut and a shank, with a boss between the nut and shank that engages with the slot of the irregularly shaped row to limit its movement, ensuring that the bolt does not rotate when the nut is tightened.

[0011] A rectangular busbar clamp is fixed at the connection between the pier and the bridge body.

[0012] The rectangular busbar clamps are used to secure the rectangular busbars together with bolts connected in alternating phases, ensuring a firm connection.

[0013] This invention features an ingenious design, offering advantages such as convenient installation, low cost, excellent heat dissipation, high strength of the irregularly shaped busbar, and stable operation. It effectively prevents the generation of eddy currents and allows for assembly adjustments based on the on-site installation environment, improving assembly efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0016] Figure 2 for Figure 1 A partially enlarged structural diagram.

[0017] Figure 3 for Figure 1 Top view.

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the irregular-shaped busbar clamp.

[0019] Figure 5 for Figure 1 A schematic diagram of the structure of the irregular-shaped row.

[0020] Figure 6 for Figure 1 A schematic diagram of the structure of a T-bolt. Detailed Implementation

[0021] Example

[0022] The structure of this embodiment is as follows: Figures 1-5As shown, the special-shaped busbar overline bridge is assembled by the pier 1, the bridge body 2, the pier rectangular row 3, the bridge body special-shaped row 4, the special-shaped row busbar clamp 5, the hoisting reinforcing beam 6, the rectangular row busbar clamp 7, the bridge body supporting bracket 8, the T-shaped connecting bolt 9, the special-shaped row insulation sheath 10 and the special-shaped row connecting row 11. The overline bridge is composed of two piers 1 and N bridge bodies 2 (the length of the bridge body and the number of sections are determined according to the length of the low-voltage cabinet interval), the pier 1 is fixed on the top of the low-voltage cabinet, the bridge body 2 spans two bridge bodies, and the piers 1 and the bridge bodies 2 are internally provided with copper bars of different currents. The pier 1 internally adopts the pier rectangular row 3, because the copper bar inside the pier is involved in elbow bending, the rectangular copper bar has higher flexibility, the straight section bridge body 2 internally adopts the special-shaped row 4, and the special-shaped row has the advantages of high strength, large current-carrying capacity, good heat dissipation performance and lower cost. The special-shaped row adopts a non-hole lap joint, and if there is a difference in the interval on site, the adjustment is very convenient. The straight section special-shaped row 4 is fixed on the bridge body supporting bracket 8 through the 5-3 holes in the special-shaped row busbar clamp 5, and the hoisting reinforcing beam 6 is also arranged on each bridge body, the holes 5-2 in the special-shaped row busbar clamp 5 can be fixed on the hoisting reinforcing beam 6 at the same time, so that the stability of the busbar inside the bridge body is ensured. The connecting position of the pier 1 to the bridge body is fixed on the pier through the rectangular row busbar clamp 7, the busbar clamp is clamped through the bolts between the phases, the copper bar is ensured to be firm, the lap joint of the rectangular row and the special-shaped row is connected through the special T-shaped bolt 9, the T-shaped bolt nut 9-1 is in the form of "one", and the screw rod 9-2 is in the form of T structure. There is a boss 9-3 between the nut 9-1 and the screw rod 9-2 for limiting with the special-shaped row slot, so that the bolt cannot rotate when the nut is tightened. The connecting position of the straight section special-shaped row inside the bridge body is connected through the special-shaped row connecting row 11, and is also fixed by the T-shaped bolt 9. The 5-1 hole is used for fixing the insulation sheath of the special-shaped busbar, so as to ensure the insulation of the special-shaped busbar and the bridge body.

[0023] In use, the number of bridge bodies and the position of the special-shaped row can be adjusted as required.

[0024] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners. Any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A profiled busbar crossover bridge, characterized in that: The space containing copper bars is composed of piers fixed on the top of low-voltage cabinet and bridge body connecting the piers, the piers and the bridge body contain copper bars of different current; the piers contain staggered rectangular rows, and the bridge body contains parallel special-shaped rows; the bridge body is provided with a supporting bracket, and the special-shaped rows are fixed on the supporting bracket by special-shaped row bus clamps; the bridge body has at least one section, and the length and the number of sections of the bridge body are matched with the spacing of the low-voltage cabinet.

2. The special-shaped busbar passing bridge according to claim 1, characterized in that: The special-shaped row bus clamp is composed of a vertical surface and a horizontal surface formed by bending the bottom edge of the vertical surface, the cross section of the body is "L" shape, the vertical surface is provided with a first through hole for fixing the insulating sheath of the special-shaped row, the upper part of the first through hole is provided with a second through hole for fixing the hoisting reinforcing beam, and the horizontal surface is provided with a third through hole for fixing the supporting bracket of the bridge body.

3. The special-shaped busbar bridge according to claim 1, characterized in that: Each section of the bridge body is provided with a hoisting reinforcing beam, and the hoisting reinforcing beam is connected with the special-shaped row bus clamp.

4. The special-shaped busbar bridge according to claim 1, characterized in that: The rectangular rows and the special-shaped rows, and the special-shaped rows are connected by T-shaped bolts.

5. The special-shaped busbar passing bridge according to claim 4, characterized in that: The T-shaped bolt is composed of a "one" shaped nut and a screw rod, and the nut and the screw rod have a boss for limiting the special-shaped row slot.

6. The special-shaped busbar passing bridge according to claim 1, characterized in that: The rectangular row bus clamp is fixed at the connection between the pier and the bridge body.

7. The special-shaped busbar passing bridge according to claim 6, characterized in that: The rectangular row bus clamp clamps the rectangular row by the bolt connected in phase.

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