Copper bar structure for incoming line cabinet
The design of copper busbar components and splicing assemblies solves the problem of the difficulty in adjusting traditional copper busbar structures, enabling flexible deformation of the copper busbar structure and adaptation to various installation requirements, and simplifying expansion and renovation operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东澳江电气有限公司
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional incoming line cabinets have a fixed copper busbar structure, making it difficult to adjust the routing or connection points, resulting in complicated expansion and renovation operations and insufficient flexibility.
It adopts copper busbar components and splicing components, including a support frame, a first slot and a second slot, and uses bolt connections to realize the deformation adjustment of the copper busbar, supporting the conversion of T-shaped and L-shaped structures and angle adjustment.
It enables flexible deformation of the copper busbar structure, adapts to various installation needs, simplifies the expansion and renovation process, and improves the flexibility of use.
Smart Images

Figure CN224438251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper busbar structure for power distribution cabinets, and more specifically, to a copper busbar structure for incoming line cabinets. Background Technology
[0002] In power distribution systems, incoming line cabinets serve as critical nodes in power distribution, undertaking the core functions of main power supply access, current distribution, and short-circuit protection. Copper busbars, due to their excellent conductivity, mechanical strength, and corrosion resistance, are widely used inside incoming line cabinets as the main conductive connectors, responsible for transmitting large currents between electrical components such as circuit breakers, disconnectors, and transformers. However, the traditional copper busbar structure of incoming line cabinets has significant drawbacks in practical applications. Copper busbars are typically rigid designs with fixed shapes, such as straight or L-shaped busbars. The copper busbars matched to a particular model of incoming line cabinet are fixed, making it difficult to share them. During later expansion and renovation, it is difficult to adjust the routing or connection points of existing copper busbars, requiring customized production or on-site cutting and welding, which is cumbersome and lacks overall flexibility, requiring improvement. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a copper busbar structure for incoming line cabinets, which has a simple structure, can be deformed and adjusted, is flexible in use, and can meet a variety of installation requirements.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] This utility model provides a copper busbar structure for an incoming line cabinet, including copper busbar components and a splicing assembly for connecting the copper busbar components; the splicing assembly includes a support frame, a first slot and a second slot; the first slot is inserted through one end side wall of the support frame and locked by a first bolt; the end of the support frame away from the first slot is provided with a bayonet, and the second slot is installed at the bayonet, which can be adjusted and swung after unlocking; both the first slot and the second slot can be used to insert copper busbar components and are fixedly connected by a second bolt.
[0006] In a preferred embodiment of this utility model, one end of the support frame is provided with a first through hole penetrating both side walls, the shape of the first through hole being adapted to the shape of the first slot; a first threaded hole is provided at the center of the top and bottom ends of the first through hole; multiple second threaded holes are provided on the two wall surfaces corresponding to the first slot; the first slot is inserted through the first through hole and locked by a first bolt inserted through the first threaded hole and the second threaded hole.
[0007] In a preferred embodiment of this invention, the first slot has three second threaded holes on the same wall surface, distributed at both ends and the middle of the wall surface; the other two opposite walls of the first slot are provided with multiple first circular holes, which are distributed in three groups of two and correspond to the positions of the second threaded holes; the two ends of the copper busbar are provided with second circular holes, and when the end of the copper busbar is inserted into the first slot, it is fixed by second bolts passing through the first and second circular holes; the two opposite side walls of the second slot are provided with fourth circular holes, and when the end of the copper busbar is inserted into the second slot, it is fixed by second bolts passing through the first and fourth circular holes.
[0008] In a preferred embodiment of this invention, both ends of the bayonet are provided with a third threaded hole and a fourth threaded hole; the two opposite walls of the second slot near the first through hole are provided with a third circular hole, and the two opposite walls of the other end are provided with a fifth threaded hole; the position of the third circular hole corresponds to the position of the third threaded hole, and the position of the fifth threaded hole corresponds to the position of the fourth threaded hole; the second slot is placed inside the bayonet and is rotatably connected by a third bolt inserted through the third threaded hole and the third circular hole; when the second slot swings to a position where the slot opening is perpendicular to the first slot, the fourth threaded hole and the fifth threaded hole are aligned, and the second slot can be fixed by the fourth bolt inserted through the fourth threaded hole and the fifth threaded hole.
[0009] In a preferred embodiment of this invention, the distance from the center of the second threaded hole at the end position to the groove adjacent to the first slot is consistent with half the depth of the first through hole.
[0010] The beneficial effects of this utility model are as follows:
[0011] This utility model provides a copper busbar structure for an incoming line cabinet, including copper busbar components and a splicing assembly for connecting the copper busbar components. The splicing assembly includes a support frame, a first slot, and a second slot. The first slot passes through one end of the side wall of the support frame and is locked by a first bolt. The end of the support frame away from the first slot has a latch, and the second slot is installed at the latch, which can be adjusted and swung after being unlocked. Both the first and second slots can be used to insert copper busbar components and are fixedly connected by a second bolt. The position of the second slot relative to the support frame can be adjusted to achieve T-shaped and L-shaped structures. The angle can also be adjusted by unlocking and adjusting the second slot to adapt to the needs of corner installation. The overall assembly can be deformed and adjusted, making it flexible in use and meeting various installation requirements. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of a copper busbar structure for an incoming line cabinet in a T-shape, provided in a specific embodiment of this utility model;
[0013] Figure 2This is a three-dimensional structural diagram of an L-shaped copper busbar structure for an incoming line cabinet provided in a specific embodiment of this utility model;
[0014] Figure 3 This is a three-dimensional structural diagram of a copper busbar structure for an incoming line cabinet in a bent state, provided in a specific embodiment of this utility model;
[0015] Figure 4 This is a three-dimensional unfolded structural diagram of a copper busbar structure for an incoming line cabinet provided in a specific embodiment of this utility model.
[0016] In the picture:
[0017] 100. Copper busbar; 110. Second round hole;
[0018] 200. Assembly component; 210. First slot; 211. Second threaded hole; 212. First round hole;
[0019] 220. Second slot; 221. Fourth round hole; 222. Third round hole; 223. Fifth threaded hole; 230. Support frame; 231. Bayonet; 232. First through hole; 233. First threaded hole; 234. Third threaded hole; 235. Fourth threaded hole;
[0020] 310, First bolt; 320, Second bolt; 330, Third bolt; 340, Fourth bolt. Detailed Implementation
[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] like Figures 1 to 4 As shown in the figure, a copper busbar structure for an incoming line cabinet is disclosed in a specific embodiment of the present invention, including a copper busbar component 100 and a splicing assembly 200 for connecting the copper busbar component 100; the splicing assembly 200 includes a support frame 230, a first slot 210 and a second slot 220; the first slot 210 passes through one end side wall of the support frame 230 and is locked by a first bolt 310; the support frame 230 is provided with a bayonet 231 at the end away from the first slot 210, and the second slot 220 is installed at the bayonet 231, which can be adjusted and swung after unlocking; both the first slot 210 and the second slot 220 can be used to insert the copper busbar component 100 and are fixedly connected by a second bolt 320.
[0023] The aforementioned copper busbar structure for an incoming line cabinet can be transformed into a T-shaped or L-shaped structure by adjusting the position of the second slot and the support frame; the angle can also be adjusted by unlocking and adjusting the second slot to suit the needs of corner installation; the overall design allows for deformation adjustment, making it flexible and meeting various installation requirements.
[0024] Furthermore, such as Figure 4 As shown, one end of the support frame 230 is provided with a first through hole 232 penetrating both side walls. The shape of the first through hole 232 is adapted to the shape of the first slot 210. A first threaded hole 233 is provided at the top and bottom center of the first through hole 232. A plurality of second threaded holes 211 are provided on the two wall surfaces corresponding to the first slot 210. The first slot 210 passes through the first through hole 232 and is locked by a first bolt 310 passing through the first threaded hole 233 and the second threaded hole 211. The length of the fit can be changed by adjusting the depth of the first slot. More specifically, the number of second threaded holes 211 provided on the same wall surface of the first slot 210 is 3, distributed at both ends and the middle of the wall surface, so as to realize the adjustment and deformation of the T-shaped structure and the L-shaped structure.
[0025] The other two opposite walls of the first slot 210 are provided with a plurality of first circular holes 212, which are distributed in three groups of two and correspond to the positions of the second threaded holes. The two ends of the copper busbar 100 are provided with second circular holes 110. When the end of the copper busbar 100 is inserted into the first slot 210, it is fixed by second bolts 320 passing through the first circular holes 212 and the second circular holes 110. The two opposite side walls of the second slot 220 are provided with fourth circular holes 221. When the end of the copper busbar 100 is inserted into the second slot 220, it is fixed by second bolts 320 passing through the first circular holes 212 and the fourth circular holes 221. This allows both the first slot and the second slot to be inserted into the copper busbar to achieve the required connection and fit.
[0026] Furthermore, both ends of the bayonet 231 are provided with a third threaded hole 234 and a fourth threaded hole 235; the second slot 220 is provided with a third circular hole 222 on two opposite walls near the first through hole, and a fifth threaded hole 223 on two opposite walls at the other end; the position of the third circular hole 222 corresponds to the position of the third threaded hole 234, and the position of the fifth threaded hole 223 corresponds to the position of the fourth threaded hole 235; the second slot 220 is placed inside the bayonet 231 and is rotatably connected by a third bolt 340 inserted at the third threaded hole 234 and the third circular hole 222; it should be noted that the diameter of the third circular hole is smaller than the diameter of the third threaded hole, and the end of the third bolt is a smooth rod structure that is adapted to the diameter of the third circular hole, and can be used as a fulcrum for the swinging rotation of the second slot;
[0027] When the second slot 220 swings to a position where the slot opening is perpendicular to the first slot 210, the fourth threaded hole 235 and the fifth threaded hole 223 are aligned. The second slot 220 can be fixed by the fourth bolt 340 passing through the fourth threaded hole 235 and the fifth threaded hole 223, limiting and maintaining a fixed position, and preventing rotational adjustment.
[0028] Furthermore, the distance from the center of the second threaded hole at the end position to the slot adjacent to the first slot is consistent with half the depth of the first through hole, which allows it to complete the deformation of a more compact L-shaped structure, reduce protruding parts, and prevent it from affecting the installation and layout of other structural components.
[0029] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.
Claims
1. A copper busbar structure for an incoming line cabinet, characterized in that: This includes copper busbars and splicing assemblies for connecting the copper busbars; The splicing components include a support frame, a first slot, and a second slot; The first slot is inserted through one end sidewall of the support frame and locked by the first bolt; The support frame has a bayonet at the end away from the first slot, and the second slot is installed at the bayonet. After unlocking, it can be adjusted to swing. Both the first and second slots can be used to insert copper busbars, which are then fixedly connected by the second bolt.
2. The copper busbar structure for an incoming line cabinet according to claim 1, characterized in that: One end of the support frame is provided with a first through hole that penetrates both side walls, and the shape of the first through hole is adapted to the shape of the first slot. The first threaded hole is provided at the center of the top and bottom ends of the first perforation; Multiple second threaded holes are provided on the two walls corresponding to the first slot; the first slot passes through the first through hole and is locked by the first bolt passing through the first threaded hole and the second threaded hole.
3. The copper busbar structure for an incoming line cabinet according to claim 2, characterized in that: The first slot has three second threaded holes on the same wall surface, distributed at both ends and in the middle of the wall surface; The other two opposite walls of the first slot are provided with multiple first circular holes. The first circular holes are distributed in three groups of two, and correspond to the positions of the second threaded holes. The copper busbar has a second round hole at each end. When the end of the copper busbar is inserted into the first slot, it is fixed by a second bolt that passes through the first round hole and the second round hole. The second slot has a fourth round hole on each of its two opposite sidewalls. When the end of the copper busbar is inserted into the second slot, it is fixed by the second bolts that pass through the first round hole and the fourth round hole.
4. The copper busbar structure for an incoming line cabinet according to claim 3, characterized in that: Both ends of the bayonet are provided with a third threaded hole and a fourth threaded hole; The second slot has a third circular hole on one of its two opposite walls near the first through hole, and a fifth threaded hole on the other two opposite walls; the position of the third circular hole corresponds to the position of the third threaded hole, and the position of the fifth threaded hole corresponds to the position of the fourth threaded hole. The second slot is placed inside the bayonet and is rotatably connected by a third bolt that passes through the third threaded hole and the third round hole; When the second slot swings to a position where the slot opening is perpendicular to the first slot, the fourth threaded hole aligns with the fifth threaded hole, and the second slot can be fixed by the fourth bolt passing through the fourth threaded hole and the fifth threaded hole.
5. The copper busbar structure for an incoming line cabinet according to claim 3, characterized in that: The distance from the center of the second threaded hole at the end position to the slot adjacent to the first slot is consistent with 1 / 2 depth of the first through hole.