Bus duct and power distribution system

Abstract

The embodiment of the utility model provides a bus duct and a power distribution system. A first cover body of the bus duct is arranged between two side plates, and the first cover body comprises a first cross beam and two first end plates. The first cross beam extends transversely between the two side plates. The two first end plates are oppositely arranged at the two ends of the first cross beam and are integrally formed with the first cross beam. The first part of the first end plate is located on the side, adjacent to the busbar, of the first cross beam. The second part of the first end plate is located on the side, away from the busbar, of the first cross beam, and the second part is fixed to the side plate on the corresponding side. The second cover body is arranged between the first parts of the two first end plates and comprises a second cross beam and two second end plates, and the two second end plates are coupled to the first parts on the corresponding sides and the side plates respectively. In this way, the first cover body is directly fixed to the two side plates through the second parts of the two first end plates, additional supporting pieces and assembling steps are reduced, and the overall assembling cost of the bus duct is reduced.

Description

Technical Field

[0001] The embodiments of the present disclosure generally relate to the field of electrical equipment, and more particularly to a bus duct and a power distribution system. Background Art

[0002] Bus ducts take up less space, which is conducive to dense and orderly power distribution in a limited space. They are suitable for shafts in high-rise buildings, narrow equipment rooms, or places where hidden wiring is required. In conventional bus ducts, the busbar is supported and fixed by a metal upper cover and a metal lower cover, and then the upper cover is fixed by additional supports and bolts. Although this structure ensures the stable support of the busbar, it increases the assembly steps and the number of parts of the bus duct, thereby increasing the overall assembly cost. When the upper cover is installed in reverse, larger aluminum or copper side plates are required to provide the necessary support and protection, which not only increases the weight of the bus duct, but also increases the material cost. Utility Model Content

[0003] An object of the embodiments of the present disclosure is to provide a bus duct and a power distribution system to at least partially solve the above-mentioned problems and other potential problems.

[0004] In a first aspect of the present disclosure, a bus duct is provided. The bus duct comprises: two side plates arranged opposite to each other; a first cover body arranged between the two side plates and comprising: a first beam extending transversely between the two side plates; and two first end plates arranged opposite to each other at both ends of the first beam and formed integrally with the first beam, each of the first end plates comprising a first portion and a second portion, the first portion being located on a side of the first beam adjacent to the bus bar, the second portion being located on a side of the first beam away from the bus bar, and the second portion being fixed to the side plates on the corresponding side; and a second cover body arranged between the first portions of the two first end plates and comprising: a second beam extending transversely between the first portions of the two first end plates and spaced apart from the first beam; and two second end plates arranged opposite to each other at both ends of the second beam and located on a side of the second beam away from the first beam, and formed integrally with the second beam, the two second end plates being respectively coupled to the first portion and the side plates on the corresponding side, and the first beam, the second beam and the first portions of the two first end plates forming a mounting area for the bus bar.

[0005] In some embodiments, the second portions of the two first end plates are riveted to the side plates on corresponding sides, respectively.

[0006] In some embodiments, the first cross beam and the two first end plates are an integral structure formed by extrusion.

[0007] In some embodiments, the first cover body also includes: two third end plates, which are arranged opposite to each other at the two ends of the first beam and are located on the side of the first beam away from the second beam, the third end plate is a structure bent from the end of the first beam, and the first end plate is a structure bent from the end of the third end plate away from the first beam.

[0008] In some embodiments, the side plate is provided with a first through hole, the first end plate on the corresponding side is provided with a second through hole, and the third end plate on the corresponding side is provided with a third through hole, so as to form a drainage channel through the third through hole, the second through hole and the first through hole.

[0009] In some embodiments, the third end plate includes: a first annular protrusion, which is arranged around the edge of the third through hole and is arranged on the side of the third end plate facing the side plate, and the first annular protrusion is inserted into the second through hole and the first through hole to form the drainage channel on the inner surface of the first annular protrusion.

[0010] In some embodiments, the center of the second through hole and the center of the third through hole are located on the same axis, and the diameter of the second through hole is larger than the diameter of the third through hole, so as to form a first annular notch on the side of the third end plate facing the first end plate, and the side plate also includes: a second annular protrusion, arranged around the edge of the first through hole and disposed on the side of the side plate facing the first end plate, and the second annular protrusion abuts against the first annular notch to limit the position of the side plate and the first end plate.

[0011] In some embodiments, the side plate also includes: a second annular notch, which is arranged on a side of the side plate away from the first end plate and is arranged around the edge of the first through hole, and the first annular protrusion includes: a third annular protrusion, which is arranged at an end of the first annular protrusion away from the third through hole and is arranged around the outer edge of the first annular protrusion, and the third annular protrusion abuts against the second annular notch to limit the first annular protrusion from sliding relative to the first through hole.

[0012] In some embodiments, the first annular protrusion and the third annular protrusion are structures formed by stamping the third end plate; and the second annular protrusion and the second annular notch are structures formed by stamping the side plate.

[0013] In some embodiments, each of the side panels comprises: a connection groove, which is arranged on a side of the side panel away from the first cover body and the second cover body, for placing a connection portion of a lifting machinery.

[0014] In a second aspect of the present disclosure, a power distribution system is provided, comprising: a bus duct according to the first aspect of the present disclosure; and a busbar arranged in an installation area between a first cover and a second cover of the bus duct.

[0015] In an embodiment of the present disclosure, the bus duct includes a first cover, a second cover and two side plates. The two side plates are arranged opposite to each other, the first cover is arranged between the two side plates, and the first cover includes a first beam and two first end plates. The first beam extends transversely between the two side plates. The two first end plates are arranged opposite to each other at both ends of the first beam and are integrally formed with the first beam. Each first end plate includes a first part and a second part. The first part of the first end plate is located on a side of the first beam adjacent to the busbar. The second part of the first end plate is located on a side of the first beam away from the busbar, and the second part is fixed to the side plate on the corresponding side. The second cover is arranged between the first parts of the two first end plates, and the second cover includes a second beam and two second end plates. The second beam extends transversely between the first parts of the two first end plates and is spaced apart from the first beam. The two second end plates are arranged opposite to each other at both ends of the second beam, are located on a side of the second beam away from the first beam, and are integrally formed with the second beam. The two second end plates are respectively coupled to the first part and the side plate of the corresponding side, and the first crossbeam, the second crossbeam and the first parts of the two first end plates form a busbar installation area. In this way, the first cover can be directly fixed to the two side plates through the second parts of the two first end plates, reducing additional support members and assembly steps, and reducing the overall assembly cost of the bus duct. At the same time, the first crossbeam, the second crossbeam and the first parts of the two first end plates can provide electrical isolation and structural support on the outside of the busbar, without the need to configure larger aluminum side plates or copper side plates, which can reduce the weight and material cost of the bus duct.

[0016] It should be understood that the content described in this content section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0018] Figure 1 A three-dimensional diagram of a bus duct according to an embodiment of the present disclosure is shown;

[0019] Figure 2 A cross-sectional view of a bus duct according to an embodiment of the present disclosure is shown, wherein a drainage channel is not shown;

[0020] Figure 3 A cross-sectional view of a bus duct according to an embodiment of the present disclosure is shown, wherein a rivet is shown;

[0021] Figure 4 A cross-sectional view of a bus duct according to an embodiment of the present disclosure is shown, wherein two side panels, a first cover body, and a second cover body are shown in a disassembled state;

[0022] Figure 5 Shows Figure 4 A local enlarged view of point A;

[0023] Figure 6 A cross-sectional view of a bus duct according to an embodiment of the present disclosure is shown, wherein the side plate and the third end plate are shown in a disassembled state; and

[0024] Figure 7 A cross-sectional view of a bus duct according to an embodiment of the present disclosure is shown, wherein a drainage channel is shown.

[0025] Description of reference numerals:

[0026] 100. Bus duct;

[0027] 10. side plate; 11. first through hole; 12. second annular protrusion; 13. second annular notch; 14. connecting groove;

[0028] 20. second cover body; 21. second cross beam; 22. second end plate;

[0029] 30. first cover; 31. first crossbeam; 32. first end plate; 320. second through hole; 321. first part; 322. second part; 33. third end plate; 330. third through hole;

[0030] 34, drainage channel; 341, first annular protrusion; 342, first annular notch; 343, third annular protrusion;

[0031] 40. Rivets;

[0032] 200. Busbar. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0034] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0035] As mentioned above, in conventional bus ducts, the busbar is supported and fixed by a metal upper cover and a metal lower cover, and then the upper cover is fixed by additional supports and bolts. Although this structure ensures the stable support of the busbar, it increases the assembly steps and the number of parts of the bus duct, thereby increasing the overall assembly cost. When the upper cover is installed in reverse, a larger aluminum side plate or copper side plate is required to provide the necessary support and protection, which not only increases the weight of the bus duct, but also increases the material cost.

[0036] The embodiments of the present disclosure provide a bus duct 100 and a power distribution system including the bus duct 100. In the bus duct 100, the first cover body 30 includes a first crossbeam 31 and two first end plates 32, and the second portion 322 of the first end plate 32 is directly fixed to the side plate 10 on the corresponding side. In this way, the additional support members and assembly steps between the side plate 10 and the first cover body 30 are reduced, thereby reducing the overall assembly cost of the bus duct 100. At the same time, the first crossbeam 31, the second crossbeam 21, and the first portions 321 of the two first end plates 32 can provide electrical isolation and structural support on the outside of the busbar 200, without the need to configure larger aluminum side plates or copper side plates, thereby reducing the weight and material cost of the bus duct 100. The following will be combined with Figures 1 to 7 To describe the principles of the present disclosure in detail.

[0037] like Figure 1 As shown, the bus duct 100 is responsible for protecting the internal conductors and providing necessary mechanical support. The basic structure of the bus duct 100 includes a first cover body 30, a second cover body 20 and two side panels 10. The two side panels 10 are arranged opposite to each other to form a longitudinal frame of the bus duct 100, and the length of the side panels 10 can be set. The second cover body 20 and the first cover body 30 are both located between the two side panels 10, and are coupled to the two side panels 10 by mechanical means, playing a supporting role. One of the second cover body 20 and the first cover body 30 is an upper cover, and the other cover body of the second cover body 20 and the first cover body 30 is a lower cover. In the implementation of the present disclosure, the principle of the present disclosure is described in detail with the first cover body 30 as the upper cover.

[0038] like Figure 1 and Figure 2As shown, the first cover 30 includes a first crossbeam 31 and two first end plates 32. The first crossbeam 31 extends transversely between the two side plates 10. The two first end plates 32 are arranged oppositely at the two ends of the first crossbeam 31 and are integrally formed with the first crossbeam 31. In other words, the first crossbeam 31 and the two first end plates 32 are designed and manufactured as a single entity and are inseparable. Each first end plate 32 includes a first portion 321 and a second portion 322. The first portion 321 of the first end plate 32 is located on a side of the first crossbeam 31 adjacent to the busbar 200, and the second portion 322 of the first end plate 32 is located on a side of the first crossbeam 31 away from the busbar 200. In this way, the first crossbeam 31 and the two first end plates 32 form an integrated H-shaped structure, the second portions 322 of the two first end plates 32 are respectively fixed to the side plates 10 on the corresponding sides, and an area where the busbar 200 and the second cover 20 can be placed is formed between the first portions 321 of the two first end plates 32.

[0039] like Figure 1 and Figure 2 As shown, the second cover 20 is disposed between the first portions 321 of the two first end plates 32, and the second cover 20 includes a second cross beam 21 and two second end plates 22. The second cross beam 21 extends transversely between the first portions 321 of the two first end plates 32, and is spaced apart from the first cross beam 31. In this way, the first cross beam 31 does not directly contact the second cross beam 21, and an installation space can be reserved between the first cross beam 31 and the second cross beam 21 for the busbar 200.

[0040] The two second end plates 22 are arranged opposite to each other at the two ends of the second cross beam 21, and are located on the side of the second cross beam 21 away from the first cross beam 31, and are integrally formed with the second cross beam. In this way, the second cover 20 forms an integral inverted U-shaped structure. The two second end plates 22 are respectively coupled to the first portion 321 of the corresponding side and the side plate 10, and a mounting area for the busbar 200 can be formed between the first cross beam 31, the second cross beam 21 and the first portions 321 of the two first end plates 32.

[0041] In this way, the first cover 30 can be directly fixed to the two side plates 10 through the second parts 322 of the two first end plates 32, reducing additional support members and assembly steps, and reducing the overall assembly cost of the bus duct 100. At the same time, the first crossbeam 31, the second crossbeam 21 and the first parts 321 of the two first end plates 32 can provide electrical isolation and structural support on the outside of the busbar 200, without the need to configure large aluminum side plates or copper side plates, which can reduce the weight and material cost of the bus duct 100.

[0042] In some embodiments, Figure 1 and Figure 3As shown, the second parts 322 of the two first end plates 32 are riveted to the two side plates 10, respectively. In this way, the first end plates 32 are connected to the two side plates 10 by riveting, which can ensure structural strength and assembly efficiency. The riveting method can be piercing riveting, where the rivet directly passes through the first workpiece and forms a fixed connection point in the second workpiece without pre-forming holes in the material in advance. Piercing riveting simplifies preparation work, reduces processes, and thus speeds up assembly.

[0043] In some embodiments, Figure 1 As shown, the second portion 322 of the first end plate 32 and the side plate 10 are connected by rivets 40, and the spacing between the rivets 40 can be set as required. For example, the arrangement density of the rivets 40 can be adjusted according to the requirements of structural strength.

[0044] In some alternative embodiments, multiple rows of rivets 40 may be provided between the second portion 322 of the first end plate 32 and the side plate 10 along the longitudinal extension direction of the bus duct 100. In this way, the structural strength between the side plate 10 and the first end plate 32 may be increased.

[0045] In some embodiments, the first crossbeam 31 and the two first end plates 32 are an integral structure formed by extrusion. For example, the first cover body 30 of the integral structure can be directly produced by aluminum extrusion process. In this way, the aluminum extrusion process can form the heated and softened aluminum through a mold, which speeds up the production speed and can continuously output the profile, which is suitable for mass production of small-volume components and greatly shortens the production cycle. Secondly, there is relatively little material waste in the extrusion process, especially for closed-section extrusions, which can better utilize raw materials and help reduce costs.

[0046] In some embodiments, Figure 2 and Figure 3 As shown, the first cover body 30 further includes two third end plates 33. The two third end plates 33 are arranged at both ends of the first cross beam 31 opposite to each other, and are located on the side of the first cross beam 31 away from the second cross beam 21. One end of the third end plate 33 is connected to the first cross beam 31, and the other end of the third end plate 33 is connected to the first end plate 32. In this way, the first cross beam 31 is indirectly connected to the first end plate 32. Under the support of the third end plate 33, the relative position between the first cross beam 31 and the first end plate 32 can be maintained.

[0047] In some embodiments, Figure 2 and Figure 3 As shown, the third end plate 33 is a structure bent from the end of the first cross beam 31 , and the first end plate 32 is a structure bent from an end of the third end plate 33 away from the first cross beam 31 .

[0048] like Figure 2 and Figure 3 As shown, the first cover body 30 is formed by bending the same plate material, and the plate material can be an aluminum plate or a copper plate, etc. A certain width is reserved in the center of the plate material as the first crossbeam 31. The plates at both ends of the first crossbeam 31 are bent in a direction away from the second cover body 20 to form a third end plate 33. The third end plate 33 is bent again to form the first end plate 32. With this arrangement, the product consistency of the first cover body 30 is higher, and the dimensional accuracy and performance are more stable and reliable, which is conducive to ensuring the overall quality and service life of the product. Secondly, compared with the traditional assembly method, the one-piece molding process can reduce the production steps, simplify the manufacturing process, shorten the production cycle, and improve production efficiency, thereby reducing costs.

[0049] In some embodiments, Figures 4 to 7 As shown, in order to prevent rainwater or building seepage from gathering at the bus duct 100 , a drainage channel 34 may be provided on the bus duct 100 , and the drainage channel 34 is used to drain the accumulated water on the top of the first cross beam 31 .

[0050] In some embodiments, Figures 4 to 7 As shown, the side plate 10 is provided with a first through hole 11, the first end plate 32 on the corresponding side is provided with a second through hole 320, and the third end plate 33 on the corresponding side is provided with a third through hole 330, and a drainage channel 34 can be formed through the third through hole 330, the second through hole 320 and the first through hole 11. With this arrangement, when there is water accumulation on the top of the first crossbeam 31, the accumulated water can be discharged out of the bus duct 100 along the drainage channel 34, and the side plate 10 and the first cover 30 of the bus duct 100 can be prevented from being corroded due to long-term contact with the accumulated water.

[0051] In some embodiments, Figure 4 and Figure 5 As shown, the third end plate 33 includes a first annular protrusion 341. The first annular protrusion 341 is arranged around the edge of the third through hole 330, and the first annular protrusion 341 is arranged on the side facing the side plate 10, and the first annular protrusion 341 is inserted into the second through hole 320 and the first through hole 11, and a drainage channel 34 can be formed on the inner surface of the first annular protrusion 341. In this way, the accumulated water on the top surface of the first crossbeam 31 can flow into the first annular protrusion 341 along the third through hole 330, and then flow out of the bus duct 100 along the inner surface of the first annular protrusion 341.

[0052] In some alternative embodiments, a drain pipe may be provided in the third through hole 330, the second through hole 320 and the first through hole 11, and the drain pipe may be fixed to the side plate 10 and the first end plate 32 by riveting or snap connection, and a drain channel 34 is formed in the drain pipe. In this way, when water accumulates on the top of the first crossbeam 31, the accumulated water can be discharged out of the bus duct 100 along the drain pipe, and the side plate 10 and the first cover 30 of the bus duct 100 can be prevented from being corroded due to long-term contact with the accumulated water.

[0053] In some embodiments, Figure 3 and Figure 4 As shown, the first annular protrusion 341 can be formed by stamping the third end plate 33. That is, through the stamping and bending process, a portion of the plate of the third end plate 33 can be directly stamped and bent to the side facing the first end plate 32, and the stamped and bent portion forms the first annular protrusion 341, and the third through hole 330 is formed on the third end plate 33. With this arrangement, not only the risk of accumulated water leaking along the side plate 10 and the first end plate 32 is reduced, but also the installation process of the drain pipe is reduced.

[0054] In some embodiments, in order to ensure that the accumulated water on the top surface of the first beam 31 can flow out of the bus duct 100 along the third through hole 330 in time, the bottom elevation of the third through hole 330 can be kept consistent with the top surface elevation of the first beam 31 .

[0055] In some embodiments, in order to achieve precise positioning of the side panel 10 and the first end panel 32 , a positioning structure may be provided on the side panel 10 and the first end panel 32 , which helps to increase the assembly efficiency and installation accuracy of the side panel 10 and the first end panel 32 .

[0056] In some embodiments, Figure 4 and Figure 5 As shown, a second annular protrusion 12 is provided on the side plate 10 , and a first annular notch 342 is provided on the first end plate 32 , and positioning is achieved through the cooperation between the first annular notch 342 and the second annular protrusion 12 .

[0057] like Figure 3 and Figure 4As shown, the center of the second through hole 320 and the center of the third through hole 330 are located on the same axis, and the diameter of the second through hole 320 is greater than the diameter of the third through hole 330. In this way, a first annular notch 342 can be formed on the side of the third end plate 33 facing the first end plate 32. With this arrangement, by adjusting the diameters of the second through hole 320 and the third through hole 330, the first annular notch 342 can be directly formed on the first end plate 32 without the need to additionally process the first annular notch 342 on the first end plate 32. The second annular protrusion 12 on the side plate 10 is arranged around the edge of the first through hole 11 and is provided on the side of the side plate 10 facing the first end plate 32. When the side plate 10 abuts against the first end plate 32, the second annular protrusion 12 is inserted into and abuts against the first annular notch 342, which can limit the position of the side plate 10 and the first end plate 32. In this way, the assembly efficiency of the bus duct 100 can be improved, and the structural stability of the bus duct 100 can also be improved.

[0058] In some embodiments, Figure 4 and Figure 5 As shown, the side plate 10 also includes a second annular notch 13. The second annular notch 13 is arranged around the edge of the first through hole 11, and is arranged on the side of the side plate 10 away from the first end plate 32. The outer edge of the first annular protrusion 341 is provided with a third annular protrusion 343, and the third annular protrusion 343 is arranged at an end of the first annular protrusion 341 away from the third through hole 330. After the first annular protrusion 341 is inserted into the first through hole 11, the third annular protrusion 343 is formed on the outer edge of the first annular protrusion 341 by a stamping process, and the third annular protrusion 343 abuts against the second annular notch 13. With this arrangement, the diameter of the third annular protrusion 343 is larger than the diameter of the first through hole 11, and the first annular protrusion 341 can be restricted from sliding relative to the first through hole 11.

[0059] In some embodiments, Figure 4 and Figure 5 As shown, the second annular protrusion 12 and the second annular notch 13 are formed by bending the side plate 10. In this way, there is no need to install an independent second annular protrusion 12 on the side plate 10, nor is there any need to additionally process the second annular notch 13. The second annular protrusion 12 and the second annular notch 13 can be simultaneously formed on the side plate 10 by a stamping process, thereby simplifying the processing technology of the side plate 10.

[0060] like Figure 5As shown, when the side plate 10 is butted with the first end plate 32, the third annular protrusion 343 is not processed on the first annular protrusion 341. After the first annular protrusion 341 is inserted into the first through hole 11, the first annular protrusion 341 is punched to form the third annular protrusion 343 at the end edge of the first annular protrusion 341. The diameter of the third annular protrusion 343 is greater than the diameter of the first through hole 11, which can limit the sliding of the first annular protrusion 341 relative to the first through hole 11.

[0061] In some embodiments, Figure 1 and Figure 3 As shown, the side plate 10, the first portion 321 of the first end plate 32 and the second end plate 22 can be fixed together by piercing riveting. In this way, the rivet directly passes through the first two workpieces and forms a fixed connection point in the third workpiece without pre-forming holes in the material in advance. Piercing riveting simplifies preparation work and reduces the number of steps, thereby speeding up assembly.

[0062] In some embodiments, Figure 1 and Figure 2 As shown, a connection groove 14 is provided on one side of the side plate 10 away from the second cover body 20 and the first cover body 30. The connection part of the lifting machinery can cooperate with the connection groove 14, thereby realizing the lifting and transportation of the bus duct 100.

[0063] In some embodiments, Figure 1 and Figure 2 As shown, the connection groove 14 is formed by bending the side plate 10. In this way, not only the processing difficulty of the connection groove 14 is reduced, but also the side plate 10 can include a plurality of bending sections, which helps to increase the lateral bending resistance of the side plate 10.

[0064] In a second aspect of the present disclosure, a power distribution system is provided, which includes a busbar 200 and the bus duct 100 of the first aspect of the present disclosure, wherein the busbar 200 is arranged in a region between a second cover 20 and a first cover 30 of the bus duct 100 .

[0065] In the power distribution system, the bus duct 100 includes a first cover 30, a second cover 20 and two side plates 10. The two side plates 10 are arranged opposite to each other, the first cover 30 is arranged between the two side plates 10, and the first cover 30 includes a first beam 31 and two first end plates 32. The first beam 31 extends transversely between the two side plates 10. The two first end plates 32 are arranged opposite to each other at both ends of the first beam 31, and are respectively coupled to the two ends of the first beam 31. Each first end plate 32 includes a first portion 321 and a second portion 322. The first portion 321 of the first end plate 32 is located on a side of the first beam 31 adjacent to the busbar 200. The second portion 322 of the first end plate 32 is located on a side of the first beam 31 away from the busbar 200, and the second portion 322 is fixed to the side plate 10 on the corresponding side. The second cover 20 is arranged between the first portions 321 of the two first end plates 32, and the second cover 20 includes a second beam 21 and two second end plates 22. The second cross beam 21 extends transversely between the first portions 321 of the two first end plates 32 and is spaced apart from the first cross beam 31. The two second end plates 22 are arranged at the two ends of the second cross beam 21 opposite to each other, and are located on the side of the second cross beam 21 away from the first cross beam 31, and are fixed to the two ends of the second cross beam 21 respectively. The two second end plates 22 are respectively coupled to the first portions 321 and the side plates 10 on the corresponding sides, and the installation area of ​​the busbar 200 is formed between the first cross beam 31, the second cross beam 21 and the first portions 321 of the two first end plates 32. In this way, the first cover 30 can be directly fixed to the two side plates 10 through the second portions 322 of the two first end plates 32, reducing additional support members and assembly steps, and reducing the overall assembly cost of the bus duct 100. At the same time, the first crossbeam 31, the second crossbeam 21 and the first part 321 of the two first end plates 32 can provide electrical isolation and structural support on the outside of the busbar 200, without the need to configure larger aluminum side plates or copper side plates, thereby reducing the weight and material cost of the bus duct.

[0066] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A bus duct (100), characterized in that: include: Two side panels (10) arranged opposite to each other; The first cover body (30) is arranged between the two side plates (10) and comprises: a first cross beam (31) extending transversely between the two side panels (10); and two first end plates (32), which are arranged opposite to each other at two ends of the first crossbeam (31) and are integrally formed with the first crossbeam (31), each of the first end plates (32) comprising a first portion (321) and a second portion (322), the first portion (321) being located on a side of the first crossbeam (31) adjacent to the busbar (200), the second portion (322) being located on a side of the first crossbeam (31) away from the busbar (200), and the second portion (322) being fixed to the side plate (10) on the corresponding side; and The second cover (20) is disposed between the first parts (321) of the two first end plates (32), and comprises: a second cross beam (21) extending transversely between the first portions (321) of the two first end plates (32) and spaced apart from the first cross beam (31); and Two second end plates (22) are arranged at two ends of the second crossbeam (21) opposite to each other, and are located on a side of the second crossbeam (21) away from the first crossbeam (31), and are integrally formed with the second crossbeam (21); the two second end plates (22) are respectively coupled to the first portion (321) and the side plate (10) on the corresponding side; and an installation area of ​​the busbar (200) is formed between the first crossbeam (31), the second crossbeam (21) and the first portion (321) of the two first end plates (32).

2. The bus duct (100) according to claim 1, characterized in that: The second portions (322) of the two first end plates (32) are riveted to the side plates (10) on the corresponding sides, respectively.

3. The bus duct (100) according to claim 1 or 2, characterized in that: The first cross beam (31) and the two first end plates (32) are an integral structure formed by extrusion.

4. The bus duct (100) according to claim 1 or 2, characterized in that: The first cover body (30) further comprises: Two third end plates (33) are arranged at the two ends of the first cross beam (31) opposite to each other and are located on the side of the first cross beam (31) away from the second cross beam (21). The third end plate (33) is a structure bent from the end of the first cross beam (31), and the first end plate (32) is a structure bent from the end of the third end plate (33) away from the first cross beam (31).

5. The bus duct (100) according to claim 4, characterized in that: The side plate (10) is provided with a first through hole (11), the first end plate (32) on the corresponding side is provided with a second through hole (320), and the third end plate (33) on the corresponding side is provided with a third through hole (330), so as to form a drainage channel (34) via the third through hole (330), the second through hole (320) and the first through hole (11).

6. The bus duct (100) according to claim 5, characterized in that: The third end plate (33) comprises: A first annular protrusion (341) is arranged around the edge of the third through hole (330) and is arranged on a side of the third end plate (33) facing the side plate (10), and the first annular protrusion (341) is inserted into the second through hole (320) and the first through hole (11) to form the drainage channel (34) on the inner surface of the first annular protrusion (341).

7. The bus duct (100) according to claim 6, characterized in that: The center of the second through hole (320) and the center of the third through hole (330) are located on the same axis, and the diameter of the second through hole (320) is greater than the diameter of the third through hole (330), so as to form a first annular notch (342) on a side of the third end plate (33) facing the first end plate (32), and the side plate (10) further includes: A second annular protrusion (12) is arranged around the edge of the first through hole (11) and is provided on the side of the side plate (10) facing the first end plate (32), and the second annular protrusion (12) abuts against the first annular notch (342) to limit the position of the side plate (10) and the first end plate (32).

8. The bus duct (100) according to claim 7, characterized in that: The side plate (10) further comprises: The second annular notch (13) is arranged on a side of the side plate (10) away from the first end plate (32) and is arranged around the edge of the first through hole (11), and the first annular protrusion (341) includes: The third annular protrusion (343) is arranged at an end of the first annular protrusion (341) away from the third through hole (330) and is arranged around the outer edge of the first annular protrusion (341), and the third annular protrusion (343) abuts against the second annular notch (13) to limit the first annular protrusion (341) from sliding relative to the first through hole (11).

9. The bus duct (100) according to claim 8, characterized in that: The first annular protrusion (341) and the third annular protrusion (343) are structures formed by stamping the third end plate (33); and The second annular protrusion (12) and the second annular notch (13) are structures formed by stamping the side plate (10).

10. The bus duct (100) according to any one of claims 1, 2, 5 to 9, characterized in that: Each of the side panels (10) comprises: A connecting groove (14) is arranged on a side of the side plate (10) away from the first cover body (30) and the second cover body (20) for placing a connecting portion of a lifting machine.

11. A power distribution system, characterized in that: include: The bus duct (100) according to any one of claims 1 to 10; as well as The busbar (200) is arranged in an installation area between the first cover (30) and the second cover (20) of the bus duct (100).

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