Copper bar conversion structure of low-voltage switch cabinet

By adjusting the components and angle control components, the problems of low installation efficiency and difficulty in angle adjustment of copper busbars in low-voltage switchgear are solved, realizing rapid adjustment of copper busbar position and angle adaptation, thus improving installation efficiency and reliability.

CN224264478UActive Publication Date: 2026-05-19河南豫开电气有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河南豫开电气有限公司
Filing Date
2025-08-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The copper busbar conversion structure in existing low-voltage switchgear has low installation efficiency, is prone to mechanical performance degradation due to repeated bending, and is difficult to quickly adjust the angle to adapt to complex internal space layout.

Method used

An adjustment component and an angle control component are used to quickly adjust the position of the copper busbar by meshing the adjustment rod and rack, and the angle of the copper busbar is adjusted by the rotating column and the angle control component to adapt to the internal structure of the switch cabinet.

Benefits of technology

It enables rapid and stable installation of copper busbars, avoids bending and deformation, improves conductivity and long-term reliability, and adapts to installation requirements of different internal layouts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a copper bar conversion structure of a low voltage switch cabinet, belonging to the copper bar field, the copper bar conversion structure of the low voltage switch cabinet comprises a copper bar 1 and a copper bar 2, the top end of the copper bar 1 is provided with a connecting groove, the bottom end of the copper bar 2 is fixedly connected with a connecting block, the connecting block is I-shaped, and the connecting groove is provided with a groove. And the connecting blocks are movably connected with the interiors of the connecting grooves, limiting strips are fixedly connected to the two sides of the connecting blocks, and adjusting assemblies are arranged in the connecting grooves. The second adjusting rod is rotated inwards through the adjusting assembly until the rack on the other side is engaged with the second limiting strip, so that the current position of the connecting block can be kept unchanged through clamping of the two adjusting rods, and the relative position of the first copper bar and the second copper bar is rapidly adjusted; the first copper bar and the second copper bar can conveniently adapt to the internal structure of the low-voltage switch cabinet in the installation process, so that the arrangement path of the copper bars does not need to be changed in a bending deformation mode, and workers can conveniently install the copper bars.
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Description

Technical Field

[0001] This utility model relates to the field of copper busbars, and more specifically, to a copper busbar conversion structure for a low-voltage switchgear. Background Technology

[0002] Low-voltage switchgear is an important device in power systems used for distributing, controlling, and protecting electrical energy. It typically uses copper busbars as conductive elements to achieve current transmission and connection. The copper busbar conversion structure, as a key component inside the switchgear, is mainly used to realize the electrical connection and position adjustment between different copper busbars to adapt to the internal spatial layout and electrical requirements of the switchgear.

[0003] Currently, most copper busbar transition structures in low-voltage switchgear employ fixed connections or adjustments made through bending and deformation. This method is not only inefficient but also prone to degrading the mechanical properties of the copper busbar due to repeated bending, affecting conductivity and long-term reliability. Furthermore, when internal space is limited or the layout is unusual, traditional copper busbar structures struggle to quickly adjust their angles, increasing installation difficulty. Therefore, we propose a copper busbar transition structure for low-voltage switchgear to address these issues. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a copper busbar conversion structure for a low-voltage switchgear. This structure involves adjusting the adjusting rod two inwards until the rack on the other side engages with the limiting strip two. The clamping action of the two adjusting rods allows the connecting block to maintain its current position, thus quickly adjusting the relative positions of copper busbar one and copper busbar two. This facilitates the adaptation of copper busbar one and copper busbar two to the internal structure of the low-voltage switchgear during installation, eliminating the need to change the copper busbar layout path through bending or deformation. This makes installation between copper busbars easier for operators.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A copper busbar conversion structure for a low-voltage switchgear includes a copper busbar 1 and a copper busbar 2. The top of the copper busbar 1 is constructed with a connecting groove, and the bottom of the copper busbar 2 is fixedly connected with a connecting block. The connecting block is I-shaped and movably connected to the interior of the connecting groove. Limiting strips are fixedly connected to both sides of the connecting block. An adjusting component is provided inside the connecting groove and is movably connected to the limiting strips. Supporting blocks 1 and 2 are fixedly connected to the ends of both copper busbar 1 and copper busbar 2. A rotating column is movably connected to the opposite side of the supporting block 1, and the outer side of the rotating column is movably fitted to the ends of both copper busbar 1 and copper busbar 2. A copper busbar 3 is fixedly connected to the outer side of the rotating column. An angle control component is movably connected to the supporting block 2 and is connected to the end of the rotating column.

[0009] Furthermore, the adjusting assembly includes a rack, a return spring, and a guide post. The return spring and the guide post are symmetrically arranged. A set of symmetrical limiting grooves are opened on the inner side of the connecting groove. A set of symmetrical guide posts are fixedly connected inside the limiting grooves. A set of symmetrical return springs are fixedly connected inside the limiting grooves. The return springs are respectively sleeved on the outer side of the guide posts. The ends of the return springs away from the guide posts are all fixedly connected to the back side of the rack.

[0010] Furthermore, the limiting strips are respectively in movable engagement with the limiting grooves, the racks are respectively in movable engagement with the limiting grooves, and the limiting strips are respectively meshed with the racks.

[0011] Furthermore, the adjustment assembly also includes an adjustment rod one and an adjustment rod two. The adjustment rod one has a thread on its outer side and is movably connected to one side of the copper busbar one via the thread. The front end of the adjustment rod one abuts against the back side of the rack. The adjustment rod two has a thread on its outer side and is movably connected to the other side of the copper busbar one via the thread. The front end of the adjustment rod two abuts against the back side of another rack.

[0012] Furthermore, the angle control component includes a first gear, a second gear, and an adjusting column. The first gear is fixedly connected to the end of the rotating column, the second gear is movably connected to the inside of the second support block, and the first gear and the second gear mesh with each other. The adjusting column has a thread on its outer side, and the adjusting column is movably connected to the second support block through the thread, and the front end of the adjusting column abuts against the back side of the second gear.

[0013] Furthermore, the angle control component also includes a compression spring, which is sleeved on the outside of the adjusting column. One end of the compression spring is fixedly connected to the back side of the second tooth, and the other end of the compression spring is fixedly connected to the inside of the second support block.

[0014] 3. Beneficial Effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) In this scheme, by adjusting the component, the adjusting rod 2 is rotated inward until the rack on the other side meshes with the limiting strip 2. Thus, by clamping the two adjusting rods, the connecting block can maintain its current position, thereby quickly adjusting the relative position of copper busbar 1 and copper busbar 2. This facilitates the adaptation of copper busbar 1 and copper busbar 2 to the internal structure of the low-voltage switch cabinet during installation, so that the copper busbar layout path does not need to be changed by bending and deformation. This makes it convenient for workers to install the copper busbars.

[0017] (2) In this scheme, by using the angle control component, the adjusting column is rotated outward so that the adjusting column is away from the second tooth. Under the action of the compression spring, the second tooth is pulled away from the first tooth. At this time, the third copper busbar can be rotated so that the rotating column rotates around its axis. This can change the angle between the third copper busbar and the first copper busbar. Thus, when the two copper busbars are switched and connected, it helps the third copper busbar to pass through the low-voltage switch cabinet smoothly at a suitable angle, making it convenient for the third copper busbar to be connected to the inside of another switch cabinet. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the adjustment component and its connecting parts of the present invention;

[0020] Figure 3 This is a schematic diagram of the angle control component structure of this utility model;

[0021] Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0022] Explanation of the labels in the diagram:

[0023] 1. Copper busbar one; 2. Copper busbar two; 3. Connecting groove; 4. Connecting block; 5. Limiting strip; 6. Adjusting assembly; 601. Rack; 602. Return spring; 603. Guide post; 604. Adjusting rod one; 605. Adjusting rod two; 7. Support block one; 8. Support block two; 9. Rotating column; 10. Copper busbar three; 11. Angle control assembly; 1101. Alignment gear one; 1102. Alignment gear two; 1103. Adjusting post; 1104. Compression spring; 12. Limiting groove. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Example 1:

[0026] like Figure 1-4 As shown, this utility model provides a technical solution: a copper busbar conversion structure for a low-voltage switchgear, including a copper busbar 1 and a copper busbar 2. The top of the copper busbar 1 has a connecting groove 3, and the bottom of the copper busbar 2 is fixedly connected to a connecting block 4. The connecting block 4 is I-shaped and is movably connected to the interior of the connecting groove 3. The cross-section of the connecting groove 3 is also I-shaped. The connecting groove 3 and the connecting block 4 are movably fitted, allowing the connecting block 4 to move along the length direction of the copper busbar 1 and along the width direction of the copper busbar. Limiting strips 5 are fixedly connected to both sides of the connecting block 4. An adjusting component 6 is provided inside the connecting groove 3, which can change the relative positions of the copper busbar 1 and the copper busbar 2, allowing the copper busbar 1 to move more freely. Copper busbar 1 and copper busbar 2 can be staggered to adapt to the internal structure of the low-voltage switchgear during connection. Adjustment component 6 is movably connected to limit bar 5. Support block 1 and support block 2 are fixedly connected to the ends of copper busbar 1 and copper busbar 2, respectively. Rotary column 9 is movably connected to the opposite side of support block 1. The outer side of rotary column 9 is movably fitted to the ends of copper busbar 1 and copper busbar 2. Copper busbar 3 10 is fixedly connected to the outer side of rotary column 9. Rotary column 9 is movably connected between the two copper busbars, allowing current to flow between them. An angle control component 11 is movably connected to support block 2.8 and is connected to the end of rotary column 9.

[0027] like Figure 1 , Figure 2 and Figure 4As shown, the adjusting assembly 6 includes a rack 601, a return spring 602, and a guide post 603. The return spring 602 and the guide post 603 are symmetrically arranged. A set of symmetrical limiting grooves 12 are provided on the inner side of the connecting groove 3. A set of symmetrical guide posts 603 are fixedly connected inside the limiting grooves 12, and a set of symmetrical return springs 602 are fixedly connected inside the limiting grooves 12. The return springs 602 are respectively sleeved on the outer side of the guide posts 603. The ends of the return springs 602 away from the guide posts 603 are fixedly connected to the back side of the rack 601. The limiting strips 5 are respectively movably engaged with the limiting grooves 12, and the rack 601 is respectively movably engaged with the limiting grooves 12. The adjustment assembly 6 also includes an adjustment rod 604 and an adjustment rod 605. The outer side of the adjustment rod 604 is threaded and is movably connected to one side of the copper busbar 1. The front end of the adjustment rod 604 abuts against the back side of the rack 601. The outer side of the adjustment rod 605 is threaded and is movably connected to the other side of the copper busbar 1. The front end of the adjustment rod 605 abuts against the back side of another rack 601. The ends of both the adjustment rod 604 and the adjustment rod 605 can be rotated with an octagonal screwdriver.

[0028] The connecting block 4 moves along the length of copper busbar 1 (direction one) and along the width of copper busbar 2 (direction two). Based on the internal layout of the low-voltage switchgear, the relative positions of copper busbar 1 and copper busbar 2 are adjusted. First, controlling copper busbar 2 to move along direction one adjusts the overall length of copper busbar 1 and copper busbar 2. Then, controlling copper busbar 2 to move along direction two allows copper busbar 1 and copper busbar 2 to be staggered. The connecting block 4 and connecting groove 3 are movable, allowing current to flow between copper busbar 1 and copper busbar 2. Finally, the adjusting rod is rotated inward... 604 pushes rack 601 forward until rack 601 engages with limit bar 5. Similarly, rotate adjusting rod 605 inward until rack 601 on the other side engages with limit bar 5. Thus, the connecting block 4 can maintain its current position by clamping the two adjusting rods, thereby quickly adjusting the relative position of copper busbar 1 and copper busbar 2. This facilitates the adaptation of copper busbar 1 and copper busbar 2 to the internal structure of the low-voltage switchgear during installation, eliminating the need to change the arrangement path of the copper busbars by bending or deforming. This makes it easier for workers to install the copper busbars.

[0029] In addition, when the control adjustment rod moves away from the rack 601, the return spring 602 shortens along the guide post 603 under the action of the return spring 602, thereby pulling the rack 601 away from the limit bar 5.

[0030] Example 2:

[0031] like Figure 1 and Figure 3As shown, the angle control assembly 11 includes a first gear 1101, a second gear 1102, and an adjusting column 1103. The first gear 1101 is fixedly connected to the end of the rotating column 9, and the second gear 1102 is movably connected to the inside of the second support block 8. The first gear 1101 and the second gear 1102 mesh with each other. The outer side of the adjusting column 1103 is threaded, and the adjusting column 1103 is movably connected to the second support block 8 through the thread. The front end of the adjusting column 1103 abuts against the back side of the second gear 1102. The angle control assembly 11 also includes a compression spring 1104. The compression spring 1104 is sleeved on the outer side of the adjusting column 1103. One end of the compression spring 1104 is fixedly connected to the back side of the second gear 1102, and the other end of the compression spring 1104 is fixedly connected to the inside of the second support block 8.

[0032] Rotate the adjusting column 1103 outward so that it moves away from the second tooth 1102. Under the action of the compression spring 1104, the second tooth 1102 is pulled away from the first tooth 1101. At this time, the copper busbar 10 can be rotated so that the rotating column 9 rotates around its axis. This can change the angle between the copper busbar 10 and the first copper busbar. Thus, when the two copper busbars are switched and connected, it helps the copper busbar 10 to pass smoothly through the low-voltage switchgear at a suitable angle, making it convenient for the copper busbar 10 to be connected to the interior of another switchgear.

[0033] In addition, it is possible to notify that the two copper busbars 310 are located on the same side of copper busbar 11, or to control the two copper busbars 310 to be located on different sides of copper busbar 11, thereby adapting to different internal layouts of low-voltage switchgear and increasing the practicality of the copper busbar conversion structure.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A copper busbar switching structure for a low-voltage switchgear, comprising copper busbar one (1) and copper busbar two (2), characterized in that: The top of the copper busbar 1 (1) is constructed with a connecting groove (3), and the bottom of the copper busbar 2 (2) is fixedly connected with a connecting block (4). The connecting block (4) is I-shaped and is movably connected to the interior of the connecting groove (3). Limiting strips (5) are fixedly connected to both sides of the connecting block (4). An adjustment component (6) is provided inside the connecting groove (3), and the adjustment component (6) is movably connected to the limiting strip (5). Support block 1 (7) and support block 2 (8) are fixedly connected to the ends of the copper busbar 1 (1) and the copper busbar 2 (2). A rotating column (9) is movably connected to the opposite side of the support block 1 (7), and the outer side of the rotating column (9) is movably fitted to the ends of the copper busbar 1 (1) and the copper busbar 2 (2). A copper busbar 3 (10) is fixedly connected to the outer side of the rotating column (9). An angle control component (11) is movably connected to the support block 2 (8), and the angle control component (11) is connected to the end of the rotating column (9).

2. The copper busbar conversion structure of a low-voltage switchgear according to claim 1, characterized in that: The adjustment assembly (6) includes a rack (601), a return spring (602), and a guide post (603). The return spring (602) and the guide post (603) are symmetrically arranged. A set of symmetrical limiting grooves (12) are opened on the inner side of the connecting groove (3). A set of symmetrical guide posts (603) are fixedly connected inside the limiting groove (12). A set of symmetrical return springs (602) are fixedly connected inside the limiting groove (12). The return springs (602) are respectively sleeved on the outer side of the guide posts (603). The end of the return spring (602) away from the guide post (603) is fixedly connected to the back side of the rack (601).

3. The copper busbar conversion structure of a low-voltage switchgear according to claim 2, characterized in that: The limiting strips (5) are in movable engagement with the limiting grooves (12), the racks (601) are in movable engagement with the limiting grooves (12), and the limiting strips (5) are meshed with the racks (601).

4. The copper busbar conversion structure of a low-voltage switchgear according to claim 3, characterized in that: The adjustment assembly (6) further includes an adjustment rod one (604) and an adjustment rod two (605). The adjustment rod one (604) has a thread on its outer side and is movably connected to one side of the copper busbar one (1) by the thread. The front end of the adjustment rod one (604) abuts against the back side of the rack (601). The adjustment rod two (605) has a thread on its outer side and is movably connected to the other side of the copper busbar one (1) by the thread. The front end of the adjustment rod two (605) abuts against the back side of another rack (601).

5. The copper busbar conversion structure of a low-voltage switchgear according to claim 1, characterized in that: The angle control component (11) includes a first gear (1101), a second gear (1102), and an adjusting column (1103). The first gear (1101) is fixedly connected to the end of the rotating column (9). The second gear (1102) is movably connected to the inside of the second support block (8), and the first gear (1101) and the second gear (1102) mesh with each other. The adjusting column (1103) has a thread on its outer side. The adjusting column (1103) is movably connected to the second support block (8) through the thread, and the front end of the adjusting column (1103) abuts against the back side of the second gear (1102).

6. The copper busbar conversion structure of a low-voltage switchgear according to claim 5, characterized in that: The angle control assembly (11) also includes a compression spring (1104), which is sleeved on the outside of the adjusting column (1103). One end of the compression spring (1104) is fixedly connected to the back side of the gear two (1102), and the other end of the compression spring (1104) is fixedly connected to the inside of the support block two (8).