Bus duct

Abstract

The utility model discloses a bus duct, which comprises a hollow shell and a conducting bar arranged in an inner cavity of the shell, an insulating layer is arranged between the inner wall of the shell and the conducting bar, a stiffening beam is arranged on the outer wall of the shell, a hollow cavity is arranged in the stiffening beam, and the extension direction of the stiffening beam is parallel to the extension direction of the inner cavity of the shell. The multiple stiffening beams are sequentially arranged in the direction perpendicular to the extending direction. The reinforcing beams are arranged on the outer wall of the shell, and the hollow cavities are formed in the reinforcing beams, so that the bus duct has high strength and rigidity and can resist external collision and extrusion, the cavities can enhance the strength, impact force is absorbed through deformation of the cavities during mechanical collision of external force, and therefore, the bus duct is protected, and the service life of the bus duct is prolonged. Meanwhile, the cavity can be used as a channel for other wires, so that the wires are convenient to manage and protect. Deformation and damage of the shell in an extreme environment are avoided, and the safety and the service life of the bus duct are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electrical equipment, in particular to a bus duct. BACKGROUND

[0002] As an important part of power transmission equipment, bus ducts are widely used in modern high-rise buildings and large workshops that require huge power. A bus duct includes a shell and a conductive bar installed inside the shell. However, the shell needs to have high strength, corrosion resistance, and high protection level during use in various harsh external environments such as humidity, corrosion, and collision.

[0003] Although the traditional bus duct shell material meets these needs to some extent, it may still deform or be damaged in extreme environments, affecting the safety and service life of the bus duct.

[0004] Therefore, how to provide a high-strength bus duct is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0005] The utility model aims at providing a bus duct, which has a hollow cavity inside the reinforcing beam to improve the strength of the shell and prevent deformation and damage.

[0006] To solve the above technical problems, the utility model provides a bus duct, which includes a hollow shell and a conductive bar arranged in the internal cavity of the shell. An insulating layer is arranged between the inner wall of the shell and the conductive bar. A reinforcing beam is arranged on the outer wall of the shell. A hollow cavity is arranged inside the reinforcing beam. The extension direction of the reinforcing beam is parallel to the extension direction of the internal cavity of the shell. Multiple reinforcing beams are arranged in sequence perpendicular to the extension direction.

[0007] Preferably, the shell includes two oppositely arranged side plates and two oppositely arranged cover plates. The two side edges of one cover plate are respectively connected to one side edge of two side plates. The two side edges of the other cover plate are respectively connected to the other side edge of two side plates. Two side plates and two cover plates form the internal cavity of the shell. The conductive bar is arranged between two side plates and two cover plates.

[0008] Preferably, the reinforcing beam is a rectangular groove profile. The groove of the rectangular groove profile is fastened to the outer wall of the side plate. The inner wall of the rectangular groove profile and the outer wall of the side plate form the cavity. The extension direction of the rectangular groove profile is parallel to the length direction of the side plate. Multiple rectangular groove profiles are arranged in sequence along the width direction of the side plate.

[0009] Preferably, the two side long edge edges of the side plate are provided with outwardly protruding wing plates, and the two side long edge edges of the cover plate are provided with flanges wrapping the edges of the wing plates.

[0010] Preferably, the insulation layer is specifically an organic weather-resistant insulation pouring layer, and the inner wall of the side plate is provided with a plurality of T-shaped beams embedded in the insulation layer.

[0011] Preferably, the side plate, the reinforcing beam and the T-shaped beam are integrally formed.

[0012] Preferably, the shell is an aluminum alloy plate member including aluminum, silicon, copper, magnesium, titanium, scandium and zirconium, and the surface of the shell is provided with a corrosion-resistant coating or an anodic oxidation layer.

[0013] Preferably, the outer side of the reinforcing beam is provided with a wedge-shaped notch communicating with the cavity.

[0014] Preferably, the outer wall of the cover plate is provided with corrugated teeth.

[0015] Preferably, the shell is internally provided with a temperature monitoring device.

[0016] The utility model provides a bus duct, including hollow shell and setting in the conductive row of shell inner chamber, be provided with insulation layer between the shell inner wall and conductive row, be provided with reinforcing beam on the shell outer wall, be provided with hollow cavity in the reinforcing beam, the extension direction of reinforcing beam is parallel to the extension direction of shell inner chamber, a plurality of reinforcing beam perpendicularly to extension direction arrange in proper order.

[0017] The reinforcing beam is arranged on the outer wall of the shell, and the hollow cavity is arranged in the reinforcing beam. By the above-mentioned mode, high strength and rigidity are achieved, external collision and extrusion can be resisted, the cavity can enhance the strength, and in the case of external mechanical collision, the impact force can be absorbed through the deformation of the cavity, so as to protect the bus duct. At the same time, the cavity can be used as a channel for other wires, facilitating the management and protection of the wires. The deformation and damage of the shell in extreme environments are avoided, and the safety and service life of the bus duct are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of one specific embodiment of the bus duct provided by the utility model;

[0019] Figure 2 It is a structure schematic view of the side plate in one specific embodiment of the bus duct provided by the utility model;

[0020] Figure 3 It is a main view schematic view of the side plate in one specific embodiment of the bus duct provided by the utility model;

[0021] Figure 4A partial enlarged view of the cover plate in one specific embodiment of the bus duct provided by the utility model.

[0022] The conductive row 1, the side plate 2, the reinforcing beam 21, the wing plate 22, the T-shaped beam 23, the wedge-shaped gap 24, the cover plate 3, the corrugated tooth 31, and the organic weather-resistant insulation pouring material layer 4. Specific embodiment

[0023] The core of the utility model is to provide a bus duct, which is provided with a reinforcing beam on the outer wall of the shell, and a hollow cavity is arranged in the reinforcing beam, so that the strength of the shell is improved, and deformation damage is prevented.

[0024] In order to enable personnel in the technical field to better understand the utility model scheme, the utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0025] Please refer to Figures 1 to 4 , Figure 1 The structural schematic diagram of one specific embodiment of the bus duct provided by the utility model; Figure 2 The structural schematic diagram of the side plate in one specific embodiment of the bus duct provided by the utility model; Figure 3 The main view schematic diagram of the side plate in one specific embodiment of the bus duct provided by the utility model; Figure 4 A partial enlarged view of the cover plate in one specific embodiment of the bus duct provided by the utility model.

[0026] The utility model specific embodiment provides a kind of bus duct, including shell, conductive row 1 and insulation layer, wherein, shell is hollow structure, internal cavity is same with the extension direction of wire, and two ends are provided with opening, and conductive row 1 is set in shell internal cavity, can be copper row, aluminum row or composite conductor, while, insulation layer is arranged between shell inner wall and conductive row 1.The reinforcing beam 21 is arranged on the outer wall of the shell, the hollow cavity is arranged in the reinforcing beam 21, the extension direction of the reinforcing beam 21 is parallel to the extension direction of the internal cavity of the shell, and the reinforcing beam 21 is arranged in sequence perpendicular to the extension direction.

[0027] The reinforcing beam 21 is arranged on the outer wall of the shell, and the hollow cavity is arranged in the reinforcing beam 21, which has high strength and rigidity by the above-mentioned mode, can resist external collision and extrusion, the cavity can enhance the strength, and the impact force can be absorbed by the deformation of the cavity when the shell is mechanically collided by external force, so as to protect the bus duct and reduce the vibration of the bus. The cavity can be used as a channel for other wires, such as optical fiber, temperature measuring wire, communication wire and network cable, etc., which is convenient for the management and protection of the wires. The deformation and damage of the shell in extreme environment are avoided, and the safety and service life of the bus duct are improved.

[0028] Specifically, the shell is a rectangular tube structure surrounded by four plate members, the cross section is rectangular, including two oppositely arranged side plates 2 and two oppositely arranged cover plates 3, the two side plates 2 are parallel to each other and have a spacing between them, and the two cover plates 3 are parallel to each other and have a spacing between them, the side plates 2 are perpendicular to the cover plates 3, that is, the two side edges of one cover plate 3 are respectively connected to one side edge of the two side plates 2, and the two side edges of the other cover plate 3 are respectively connected to the other side edge of the two side plates 2, and the Figure 1 In the embodiment, the two side plates 2 are located on the left and right sides, the two cover plates 3 are located on the upper and lower sides, and the two side plates 2 and the two cover plates 3 surround the cavity inside the shell, and the conductive row 1 is arranged between the two side plates 2 and the two cover plates 3. The relative positions of the plate members can also be adjusted according to the situation, such as a trapezoidal cross section, or more plate members are arranged, such as a hexagonal or octagonal cross section, which are all within the protection scope of the present application.

[0029] Further, the reinforcing beam 21 is specifically a rectangular groove profile, the notch of the rectangular groove profile is buckled on the outer wall of the side plate 2, and the inner wall of the rectangular groove profile and the outer wall of the side plate 2 form a cavity, that is, the rectangular groove profile includes a bottom plate and side plates arranged on both sides of the bottom plate, forming a groove structure, and the opening ends of the two side plates are buckled and connected to the outer wall of the side plate 2 to form a cavity with the outer wall of the side plate 2. The extension direction of the rectangular groove profile is parallel to the length direction of the side plate 2, and a plurality of rectangular groove profiles are arranged in sequence along the width direction of the side plate 2, wherein a heat dissipation interval is arranged between the two adjacent reinforcing beams 21.

[0030] In the bus duct provided in the specific embodiment of the present application, in order to improve the installation strength, the two long side edges of the side plate 2 are provided with outwardly protruding wing plates 22, and the two long side edges of the cover plate 3 are provided with flanges, and the flanges wrap the edges of the wing plates 22. The cover plate 3 locks the two wing plates 22 on the same side of the two side plates 2, and further, a limiting protrusion can be arranged on the inner wall of the cover plate 3 to abut against the inner wall edge of the side plate 2. During processing, the two side edges of the cover plate 3 can be bent inward to lock the wing plates 22, and corresponding bolts can also be arranged.

[0031] The insulation layer is specifically an organic weather-resistant insulation pouring material layer 4 filled in the internal cavity of the shell, tightly wrapping the conductive row 1, and after adding a certain catalyst for reaction, it can be solidified within a certain time and still has a certain elasticity, so that it does not separate from the conductive row 1 and the shell during high-temperature thermal expansion and low-temperature contraction, and is not aged by ultraviolet radiation due to the protection of the shell, and has a longer service life. The inner wall of the side plate 2 is provided with a plurality of T-shaped beams 23, and the T-shaped beams 23 are embedded in the insulation layer. It can be better combined with the organic weather-resistant insulation pouring material layer 4 and not separated during the later operation process. Specifically, the plurality of T-shaped beams 23 are arranged in sequence along the width direction of the side plate 2 and correspond to the heat dissipation intervals between the two reinforcing beams 21. The side plate 2, the reinforcing beam 21 and the T-shaped beam 23 are integrally formed. Other layout methods can also be used, which are within the protection scope of the present application.

[0032] The shell is an aluminum alloy plate member including aluminum, silicon, copper, magnesium, titanium, scandium and zirconium, which includes the following components by mass percentage: Si 3.5%-4.5%, Cu 0.5%-1.5%, Mg 0.3%-0.9%, Ti 0.5%-1%, Sc 0.05%-0.1%, Zr 0.1%-0.2%, and the balance is aluminum. In addition, the surface of the shell is also subjected to special treatment, such as spraying anticorrosive paint or anodizing treatment, to further improve its corrosion resistance and protection level. Of course, other high-strength, corrosion-resistant metal materials can also be used, or PE materials can be used, or the component ratio of the aluminum alloy can be adjusted, which are within the protection scope of the present application.

[0033] In order to improve the heat dissipation effect, the reinforcing beam 21 is provided with a wedge-shaped notch 24, and the wedge-shaped notch 24 is communicated with the cavity. The operating temperature of the bus duct can be improved to improve the service life of the bus duct, and the high temperature in the cavity and the low temperature of the wedge-shaped notch 24 can form a breathing effect to improve the heat exchange capacity and improve the performance of the bus duct. Specifically, a plurality of wedge-shaped notches 24 are arranged on the reinforcing beam 21 and arranged in sequence along the extension direction of the reinforcing beam 21, and the wedge-shaped notches 24 on the plurality of reinforcing beams 21 can be arranged in alignment or staggered. Further, the outer wall of the cover plate 3 is provided with corrugated teeth 31 to strengthen the structure and increase the heat dissipation area.

[0034] On the basis of the bus duct provided in the above embodiments, a temperature monitoring device is arranged in the shell. The temperature monitoring device is used to monitor the temperature inside the bus duct in real time. When the temperature exceeds the preset value, the temperature monitoring device will issue an alarm to remind the staff to take timely measures to avoid accidents.

[0035] Among them, the bus duct can be customized according to the needs in the conductor configuration, which can be a three-phase five-wire system, or a double-loop lighting system, or used in a direct current power supply system. In the three-phase five-wire system, the conductors are arranged in phase and zero and ground interval (i.e. A-N-B-PE-C), which is safer and can effectively avoid conductor heating in three-phase power supply, solving the problem of high temperature of the middle phase line.

[0036] In addition to the bus duct described above, the specific embodiment of the utility model further provides a power transmission device comprising the bus duct, and the structures of other parts of the power transmission device refer to the prior art, which will not be described herein.

[0037] The bus duct provided by the utility model is described in detail above. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above examples are only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A busbar trunking system, characterized in that, The device includes a hollow shell and a conductive bar (1) disposed in the cavity inside the shell. An insulating layer is disposed between the inner wall of the shell and the conductive bar (1). A reinforcing beam (21) is disposed on the outer wall of the shell. The reinforcing beam (21) has a hollow cavity inside. The extension direction of the reinforcing beam (21) is parallel to the extension direction of the cavity inside the shell. Multiple reinforcing beams (21) are arranged in sequence perpendicular to the extension direction.

2. The busbar trunking according to claim 1, characterized in that, The housing includes two side plates (2) arranged opposite to each other and two cover plates (3) arranged opposite to each other. The two side edges of one cover plate (3) are respectively connected to one side edge of the two side plates (2), and the two side edges of the other cover plate (3) are respectively connected to the other side edge of the two side plates (2). The two side plates (2) and the two cover plates (3) surround to form a cavity inside the housing. The conductive bus (1) is disposed between the two side plates (2) and the two cover plates (3).

3. The busbar trunking according to claim 2, characterized in that, The reinforcing beam (21) is specifically a rectangular channel profile. The groove of the rectangular channel profile is fastened to the outer wall of the side plate (2). The inner wall of the rectangular channel profile and the outer wall of the side plate (2) form the cavity. The extension direction of the rectangular channel profile is parallel to the length direction of the side plate (2). Multiple rectangular channel profiles are arranged sequentially along the width direction of the side plate (2).

4. The busbar trunking according to claim 3, characterized in that, The side plate (2) has outwardly protruding wing plates (22) on both long sides, and the cover plate (3) has flanges on both long sides, which wrap around the edge of the wing plate (22).

5. The busbar trunking according to claim 2, characterized in that, The insulation layer is specifically an organic weather-resistant insulating filler layer (4), and the inner wall of the side plate (2) is provided with multiple T-shaped beams (23), which are embedded in the insulation layer.

6. The busbar trunking according to claim 5, characterized in that, The side plate (2), the reinforcing beam (21) and the T-beam (23) are integrally formed.

7. The busbar trunking according to claim 2, characterized in that, The housing is an aluminum alloy plate comprising aluminum, silicon, copper, magnesium, titanium, scandium and zirconium, and the surface of the housing is provided with an anti-corrosion coating or an anodized layer.

8. The busbar trunking according to claim 2, characterized in that, The outer side of the reinforcing beam (21) is provided with a wedge-shaped notch (24), which connects to the cavity.

9. The busbar trunking according to claim 2, characterized in that, The outer wall of the cover plate (3) is provided with corrugated teeth (31).

10. The busbar trunking according to any one of claims 1 to 9, characterized in that, A temperature monitoring device is installed inside the housing.

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