Novel bus duct with two-section-bar structure

Abstract

A novel bus duct with a two-piece profile structure comprises a shell structure and a busbar structure arranged in the shell structure. The shell structure comprises a first shell and a second shell, and the first shell protrudes in a bent shape and comprises a first clamping part protruding towards the second shell and first connecting parts arranged on the two sides of the first clamping part; the second shell comprises second connecting parts arranged on the two sides and a second clamping part connected with the second connecting parts, and the end face, facing the first shell, of the second clamping part and the second connecting parts on the two sides form a containing groove for containing the busbar structure; and after the busbar structure enters the placement groove, the first clamping part enters the placement groove and is matched with the second clamping part to clamp the busbar structure. Through the two-piece shell structure, the processing efficiency of busbars with different thicknesses is greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of power transmission, and in particular relates to a novel two-piece profile structure bus duct. Background Art

[0002] Bus duct is an electrical device used for power transmission and distribution. It achieves efficient and safe power transmission from power source to power-consuming equipment by encapsulating multiple conductive copper or aluminum bars in a protective shell. Bus duct is widely used in industrial, commercial buildings, data centers and other places, especially in scenarios that require high current transmission and flexible wiring. Compared with traditional cables, bus duct has the advantages of large capacity, good heat dissipation, and easy installation and maintenance.

[0003] Most existing bus duct casings adopt a four-piece structure design with two cover plates and two side plates. Although this design has certain advantages in the versatility of parts and ease of assembly, it has obvious defects in processing efficiency and drainage design. The four-piece structure needs to be spliced ​​and fixed in multiple parts, which increases assembly time and labor costs and reduces production efficiency. In addition, the drainage design of the four-piece structure in horizontal installation scenarios is also insufficient. The drainage holes of existing bus ducts usually need to pass through two layers of shells. This design creates a potential connection path between the drainage hole and the internal conductor space. Once external moisture enters the bus duct through these paths, it may cause a short circuit or other electrical failures, seriously affecting the safety and reliability of the system.

[0004] At the same time, the current busbar conductor insulation material is mainly PET polyester film. PET polyester film has the advantages of light weight and high insulation strength, but its thickness is relatively low, generally only 0.15mm. Even with multi-layer coating, it is still difficult to completely avoid the risk of breakdown. In order to ensure the insulation performance, manufacturers need to perform high-precision grinding on the burrs on the surface of the conductor, which not only increases production costs, but may also affect the quality and consistency of the product. Further busbar insulation uses a new epoxy powder vulcanization solution for the bus duct, but the vulcanized insulation layer has the problem of uneven thickness and cannot be installed in the hole, which requires improvements in the shell design and upgrades in the assembly process. Summary of the invention

[0005] The present invention aims to provide a novel bus duct with two-piece profile structure to solve the technical problem of the assembly process efficiency of the existing bus duct for vulcanized busbars.

[0006] To achieve the above purpose, the specific technical solution of a novel two-piece profile structure bus duct of the present invention is as follows:

[0007] A novel two-piece profile structure bus duct comprises a shell structure and a busbar structure arranged in the shell structure;

[0008] The housing structure comprises a first housing and a second housing, wherein the first housing is convex in a bent shape and comprises a first clamping portion protruding toward the second housing, and first connecting portions arranged on both sides of the first clamping portion;

[0009] The second shell includes second connecting parts arranged on both sides, and second clamping parts connecting the second connecting parts. The second clamping parts face the end surface of the first shell and form a placement groove for accommodating the busbar structure with the second connecting parts on both sides. After the busbar structure enters the placement groove, the first clamping part enters the placement groove and cooperates with the second clamping part to clamp the busbar structure.

[0010] As a further improvement of the present invention, the first connecting part enters the placement groove along the inner side of the second connecting part, and the second connecting part penetrates the outer side of the placement groove to form a connecting hole. The connecting hole is also formed corresponding to the part where the first connecting part enters the placement groove, and the assembly of the first shell and the second shell is achieved by installing bolts in the connecting hole.

[0011] As a further improvement of the present invention, the busbar structure includes a plurality of busbars, and the surfaces of the busbars are subjected to epoxy vulcanization insulation treatment.

[0012] As a further improvement of the present invention, the first connecting portion is vertically bent, the first clamping portion is vertically connected to the two first connecting portions, and the second clamping portion is vertically connected to the middle portions of the two second connecting portions.

[0013] As a further improvement of the present invention, a plurality of drainage holes are formed penetrating through the second connecting portion along the end surface of the second clamping portion opposite to the outer side of the placement groove.

[0014] As a further improvement of the present invention, a convex heat dissipation structure is provided on the outer sides of the first clamping portion and the second clamping portion relative to the placement groove.

[0015] As a further improvement of the present invention, during assembly, the second shell is placed at the bottom to support the busbar structure, and when placed horizontally, the second shell is placed at the top to facilitate drainage.

[0016] As a further improvement of the present invention, a drainage groove connected to the drainage hole is provided on the surface of the second clamping portion in the heat dissipation structure.

[0017] As a further improvement of the present invention, the drainage holes are symmetrically and evenly spaced along the second connection portion, and the drainage grooves are connected between the corresponding drainage holes on the second connection portions on both sides.

[0018] As a further improvement of the present invention, the first clamping portion matches the second clamping portion in size, and when the first clamping portion enters the placement groove, the first connecting portion enters closely against the inner side of the second connecting portion.

[0019] Beneficial effects:

[0020] The bus duct of the present invention adopts a two-piece structural design, which simplifies the assembly process and reduces the splicing parts, thereby significantly improving the production efficiency and assembly speed. The connection method is not only simple and fast, but also ensures the stability and sealing of the structure. The matching clamping mechanism of the first shell and the second shell ensures the stable fixation of the busbar structure, thereby enhancing the overall stability and reliability of the bus duct.

[0021] The busbars are made of epoxy-vulcanized insulation, which has high insulation strength and heat resistance, can effectively prevent the risk of breakdown and improve the safety and reliability of the bus duct. Compared with traditional PET polyester film insulation materials, epoxy-vulcanized insulation materials are thicker, which can better protect the busbars, reduce the requirements for high-precision grinding of surface burrs, reduce production costs, and improve the consistency of product quality.

[0022] A plurality of drainage holes are formed along the second connection portion along the end surface of the second clamping portion relative to the outer side of the slot. These drainage holes are independent of the internal conductor space, ensuring effective drainage of the bus duct in horizontal installation scenarios, preventing moisture from entering the interior through the gap between the shells, and avoiding the occurrence of short circuits and other electrical faults.

[0023] The drainage holes are symmetrically and evenly spaced along the second connection part, and drainage grooves are connected between the corresponding drainage holes on the second connection parts on both sides. This design not only improves the drainage efficiency, but also ensures the smoothness of the drainage path, further enhancing the waterproof performance.

[0024] The heat dissipation structure can effectively increase the surface area, improve the heat dissipation efficiency, and reduce the temperature rise of the bus duct during operation, thereby extending its service life. This design not only helps to drain water, but also further enhances the heat dissipation effect, ensuring the stability and safety of the bus duct during high-load operation.

[0025] During assembly, the second shell is placed at the bottom to support the busbar structure. When placed horizontally, the second shell is placed at the top to facilitate drainage. This design allows the bus duct to maintain good performance in different installation scenarios, with strong adaptability and a wide range of applications.

[0026] In summary, the novel two-piece profile structure bus duct provided by the present invention significantly improves production efficiency, assembly convenience, insulation performance, waterproof performance and heat dissipation performance by optimizing structural design and material selection, and has broad application prospects and market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of a novel two-piece profile structure bus duct structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the shell structure and busbar structure;

[0029] Figure 3 is a schematic diagram of the outer surface structure of the second clamping part;

[0030] Explanation of marks in the figure: 100, shell structure; 110, first shell; 111, first clamping part; 112, first connecting part; 120, second shell; 121, second clamping part; 122, second connecting part; 123, placement groove; 200, busbar structure; 210, busbar; 300, connecting hole; 400, drainage hole; 500, drainage groove; 600, heat dissipation structure. DETAILED DESCRIPTION

[0031] In order to better understand the purpose, structure and function of the present invention, a novel two-piece profile structure bus duct of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] Implementation example:

[0033] like Figure 1 A novel two-piece profile structure bus duct shown includes a busbar structure 200 as a conductor and a shell structure 100 that supports the busbar structure 200. The shell structure 100 is composed of a first shell 110 and a second shell 120. The busbar structure 200 is formed by stacking a number of busbars 210. The insulating layer of the busbar 210 in this embodiment is treated by epoxy powder vulcanization, which avoids the breakdown risk of the existing PET polyester film material covering the busbar. At the same time, the vulcanized busbars are stacked layer by layer and placed in the placement groove 123 in the second shell 120. Finally, the busbar 210 is placed in the bus duct by clamping the first shell 110 and the second shell 120.

[0034] like Figure 2As shown in the figure, the first housing 110 is a "冂"-shaped bent protrusion. The protruding part facing the second housing 120 is the first clamping portion 111, and the first connecting portions 112 connected to both sides of the first clamping portion 111 are vertically bent. The second housing 120 is in an "H" shape. Second connecting portions 122 are vertically arranged on both sides of the second clamping portion 121 in the middle. The concave opening facing the first housing 110 formed by the second clamping portion 121 and the second connecting portions 122 on both sides is the placement groove 123. During assembly, the second housing 120 is placed below with the placement groove 123 opening upward. The vulcanized busbars are neatly stacked layer by layer in the placement groove 123. Finally, the first connecting portion 112 enters the placement groove 123 closely against the inner side of the second connecting portion 122, and the first clamping portion 111 presses the busbar structure 200 downward onto the second clamping portion 121. After clamping, punching is performed along the outer surface of the second connecting portion 122 at the position overlapping the first connecting portion 112 to form a row of connecting holes 300, and the first housing 110 and the second housing 120 are assembled with bolts in the connecting holes 300.

[0035] As Figure 3 shown in the figure, when the busway is placed horizontally, the second housing 120 is placed upward. Uniformly distributed heat dissipation teeth are provided on the outer side of the second clamping portion 121 relative to the inside of the busway as the heat dissipation structure 600. Heat dissipation teeth are also provided on the outer side of the first clamping portion 111. Drainage holes 400 are symmetrically formed on the second connecting portions 122 on both sides along the outer surface of the second clamping portion 121. The drainage holes 400 are connected by drainage grooves 500 formed by concave portions on the heat dissipation teeth. The concave portions on the heat dissipation teeth collect the accumulated water into the drainage grooves 500 and discharge it from the side of the busway through the drainage holes 400, quickly taking away the heat while flowing through the heat dissipation structure. Compared with the existing busway in which the drainage holes pass through two or more layers of the outer shell, the drainage holes 400 of the present invention only pass through one layer of the housing, avoiding the risk of accumulated water entering the inside of the busway through the gaps between the housings, and the fast drainage method greatly reduces the possibility of water seepage.

[0036] The busway of the present invention simplifies the complexity of the traditional four-piece structure through a two-piece structure, reduces the processing steps, and improves the production efficiency and assembly speed. The surface of the busbar is treated with epoxy vulcanized insulation, improving the insulation performance of the busbar, reducing the breakdown risk, and enhancing the electrical safety of the busway. Through the cooperation and clamping mechanism of the first housing and the second housing, the stable fixation of the busbar structure is ensured, enhancing the overall stability and reliability of the busway. The drainage holes and drainage grooves form an effective drainage system, ensuring effective drainage when placed horizontally, preventing water accumulation and penetration, and improving the waterproof performance of the busway.

[0037] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A new type of two-piece profile structure bus duct, characterized in that: It comprises a shell structure and a busbar structure arranged in the shell structure; The housing structure comprises a first housing and a second housing, wherein the first housing is convex in a bent shape and comprises a first clamping portion protruding toward the second housing, and first connecting portions arranged on both sides of the first clamping portion; The second shell includes second connecting parts arranged on both sides, and second clamping parts connecting the second connecting parts. The second clamping parts face the end surface of the first shell and form a placement groove for accommodating the busbar structure with the second connecting parts on both sides. After the busbar structure enters the placement groove, the first clamping part enters the placement groove and cooperates with the second clamping part to clamp the busbar structure.

2. The novel two-piece profile structure bus duct according to claim 1 is characterized in that: The first connecting part enters the placement groove along the inner side of the second connecting part, and the second connecting part penetrates the outer side of the placement groove to form a connecting hole. The connecting hole is also formed corresponding to the part where the first connecting part enters the placement groove. The assembly of the first shell and the second shell is achieved by installing bolts in the connecting hole.

3. The novel two-piece profile structure bus duct according to claim 1 is characterized in that: The busbar structure comprises a plurality of busbars, and the surfaces of the busbars are treated with epoxy vulcanization insulation.

4. The novel two-piece profile structure bus duct according to claim 1 is characterized in that: The first connection portion is vertically bent, the first clamping portion is vertically connected to the two first connection portions, and the second clamping portion is vertically connected to the middle portions of the two second connection portions.

5. The novel two-piece profile structure bus duct according to claim 1 is characterized in that: A plurality of drainage holes are formed through the second connection portion along an end surface of the second clamping portion opposite to the outer side of the placement groove.

6. The novel two-piece profile structure bus duct according to claim 1 is characterized in that: The first clamping portion and the second clamping portion are provided with a convex heat dissipation structure on the outer sides relative to the placement groove.

7. The novel two-piece profile structure bus duct according to claim 5 is characterized in that: During assembly, the second shell is placed at the bottom to support the busbar structure. When placed horizontally, the second shell is placed at the top to facilitate drainage.

8. The novel two-piece profile structure bus duct according to claim 6 is characterized in that: A drainage groove connected to the drainage hole is arranged on the surface of the second clamping portion in the heat dissipation structure.

9. The novel two-piece profile structure bus duct according to claim 8 is characterized in that: The drainage holes are symmetrically and evenly spaced along the second connection portion, and the drainage grooves are connected between the corresponding drainage holes on the second connection portions at both sides.

10. The novel two-piece profile structure bus duct according to claim 4 is characterized in that: The first clamping portion and the second clamping portion match in size, and when the first clamping portion enters the placement groove, the first connecting portion closely adheres to the inner side of the second connecting portion and enters.

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