Bus protection mechanism of low-voltage power distribution cabinet

By designing a busbar protection mechanism for low-voltage distribution cabinets, strengthening the frame structure, and combining heat dissipation holes and protection components, the problem of insufficient protection at bends in the busbar protection mechanism was solved, thus achieving safe and stable operation of the busbar.

CN224006394UActive Publication Date: 2026-03-17CHANGCHUN GUANGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing busbar protection mechanism is not strong enough at bends, and the busbar is easily damaged by impacts.

Method used

The design incorporates a busbar protection mechanism for low-voltage distribution cabinets, including straight sections and bends, a reinforced frame structure, and combines heat dissipation holes and protection components. It utilizes a combination of dampers and springs to absorb impact energy.

Benefits of technology

It improves the busbar's resistance to impact and seismic activity, ensuring its safe operation in complex environments, preventing damage, and enhancing the overall performance of busbar protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of low-voltage power distribution cabinet bus protection, in particular to a low-voltage power distribution cabinet bus protection mechanism, which comprises a bus protection mechanism linear section, a bus protection mechanism turning section, heat dissipation holes, a primary reinforcing rib frame, a secondary reinforcing rib frame, a first protection assembly and a secondary protection assembly, the right end of the bus protection mechanism linear segment is fixedly connected with a bus protection mechanism turning segment. The front and rear sides of the bus protection mechanism linear segment and the front, rear, left and right sides of the bus protection mechanism turning segment are provided with heat dissipation holes. Through the design that the first-stage reinforcing rib frame and the second-stage reinforcing rib frame are combined with the protrusions, the structural strength is remarkably enhanced, direct abrasion is avoided, the impact resistance and the shock resistance are improved, the first protection assembly and the second protection assembly are combined through the dampers, the springs and the buffer plates, external impact energy at the internal corner and the external corner is effectively absorbed, and the service life is prolonged. The bus protection strength is significantly improved, and safe operation of the bus in a complex environment is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of low-voltage distribution cabinet busbar protection technology, and in particular to a low-voltage distribution cabinet busbar protection mechanism. Background Technology

[0002] In a power distribution system, the low-voltage busbar distributes electrical energy to different power-consuming units or equipment through branch lines. As a channel for power transmission, it plays the role of a bridge and link in the power system, effectively transmitting electrical energy from the generation end or power source end to various power-consuming points or equipment, ensuring the normal operation of the power system.

[0003] Existing busbar protection mechanisms generally isolate and protect the busbar directly through protective covers. However, this method is not very effective, especially for busbars with bends, where the bends are the most vulnerable and can easily be damaged by impacts.

[0004] Therefore, to address the issue of insufficient protection at bends in existing busbar protection mechanisms, a low-voltage distribution cabinet busbar protection mechanism can be designed. Utility Model Content

[0005] To overcome the problem of insufficient protection at bends in existing busbar protection mechanisms.

[0006] The technical solution of this utility model is as follows: a low-voltage distribution cabinet busbar protection mechanism, including a straight section of the busbar protection mechanism, a turning section of the busbar protection mechanism, heat dissipation holes, a primary reinforcing rib, a secondary reinforcing rib, a first protection component, and a secondary protection component. The right end of the straight section of the busbar protection mechanism is fixedly connected to the turning section of the busbar protection mechanism. Heat dissipation holes are provided on the front and rear sides of the straight section of the busbar protection mechanism and on the front, rear, left, and right sides of the turning section of the busbar protection mechanism. A primary reinforcing rib is welded to the upper end of the straight section of the busbar protection mechanism, and a primary reinforcing rib is welded to the upper end of the turning section of the busbar protection mechanism. The secondary reinforcing rib frame has corner brackets fixed to the top of the inner wall of both the straight section and the turning section of the busbar protection mechanism. Corner fixing rods are fixed to the left and front sides of the turning section of the busbar protection mechanism. A first protection component, including a corner buffer plate, is installed on the side of the corner fixing rod furthest from the turning section of the busbar protection mechanism. An outer corner fixing rod is fixed to the rear and right sides of the turning section of the busbar protection mechanism. A secondary protection component, including an outer corner buffer plate, is installed on the side of the outer corner fixing rod furthest from the turning section of the busbar protection mechanism.

[0007] Preferably, the low-voltage distribution cabinet busbar protection mechanism includes straight sections and turning sections, which can adapt to the layout requirements of busbar turning, while ensuring the safety protection of the busbar system. The heat dissipation holes effectively improve the heat dissipation performance of the busbar protection mechanism, ensuring the temperature stability of the busbar during long-term operation. The design of primary and secondary reinforcing ribs enhances the overall structural strength of the busbar protection mechanism, improving its impact and seismic resistance. The primary protection component effectively absorbs external impact energy at the corners, and the secondary protection component also effectively absorbs external impact energy at the corners, thereby protecting the busbar from damage and improving the impact resistance of the mechanism.

[0008] As a preferred option, the primary reinforcing rib frame consists of horizontal reinforcing bars and U-shaped vertical reinforcing bars, with the horizontal reinforcing bars and U-shaped vertical reinforcing bars being distributed in a crisscross pattern.

[0009] As a preferred option, the secondary reinforcing rib frame consists of small horizontal bars, medium horizontal bars, L-shaped horizontal bars, and vertical bars.

[0010] As a preferred embodiment, a protrusion is fixed on the straight section of the primary reinforcing rib away from the busbar protection mechanism and on the turning section of the secondary reinforcing rib away from the busbar protection mechanism, and several protrusions are provided.

[0011] Preferably, the corner support plate has a triangular structure and is evenly spaced.

[0012] Preferably, the first protection component also includes a first damper. The first damper is fixedly installed on the side of the corner fixing rod away from the turning section of the busbar protection mechanism. There are two first dampers. A corner buffer plate is fixed to the end of the first damper away from the corner fixing rod. A first spring is fixed between the corner buffer plate and the corner fixing rod.

[0013] Preferably, the secondary protection component also includes a second damper. The second damper is fixedly installed on the side of the corner fixing rod away from the turning section of the busbar protection mechanism. There are two second dampers. A corner buffer plate is fixed to the end of the second damper away from the corner fixing rod. A second spring is fixed between the corner buffer plate and the corner fixing rod.

[0014] The beneficial effects of this utility model are:

[0015] This low-voltage distribution cabinet busbar protection mechanism, through the design of straight sections and turning sections, can adapt to the layout requirements of busbar phase changes. The setting of several heat dissipation holes effectively stabilizes the busbar operating temperature. The combination of primary and secondary reinforcing ribs with raised design significantly enhances structural strength and avoids direct wear, improving impact and seismic resistance. Furthermore, the first and second protection components, using a combination of dampers, springs, and buffer plates, effectively absorb external impact energy at inside and outside corners, significantly improving the busbar protection strength and ensuring the safe operation of the busbar in complex environments, thus solving the problem of insufficient strength in traditional protection methods. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the busbar protection mechanism of this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the busbar protection mechanism of this utility model. Figure 2 ;

[0018] Figure 3 This is a cross-sectional view of the busbar protection mechanism of this utility model;

[0019] Figure 4 This is an exploded view of the busbar protection mechanism of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Straight section of busbar protection mechanism; 2. Turning section of busbar protection mechanism; 3. Heat dissipation hole; 4. Primary reinforcing rib; 5. Secondary reinforcing rib; 6. Protrusion; 7. Corner support plate; 8. Internal corner fixing rod; 9. First protection component; 10. External corner fixing rod; 11. Secondary protection component; 901. First damper; 902. First spring; 903. Internal corner buffer plate; 1101. Second damper; 1102. Second spring; 1103. External corner buffer plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-3This utility model provides an embodiment of a low-voltage distribution cabinet busbar protection mechanism, comprising a straight section 1, a turning section 2, heat dissipation holes 3, a primary reinforcing rib 4, a secondary reinforcing rib 5, a first protection component 9, and a secondary protection component 11. The right end of the straight section 1 is fixedly connected to the turning section 2. Heat dissipation holes 3 are provided on both the front and rear sides of the straight section 1 and on all four sides of the turning section 2. The upper end of the straight section 1 is welded with a primary reinforcing rib 4, and the upper end of the turning section 2 is welded with a secondary reinforcing rib 5. Angle brackets 7 are fixedly connected to the top of the inner wall of both the straight section 1 and the turning section 2. An inside corner fixing rod 8 is fixed to the left and front of the turning section 2. The first protection component 9 is provided on the side of the inside corner fixing rod 8 away from the turning section 2. The first protection component 9 includes an inside corner buffer. The busbar protection mechanism has corner fixing rods 10 fixed on both the rear and right sides of the turning section 2. A secondary protection component 11 is set on the side of the corner fixing rod 10 away from the turning section 2 of the busbar protection mechanism. The secondary protection component 11 includes a corner buffer plate 1103. This low-voltage distribution cabinet busbar protection mechanism includes straight sections and turning sections, which can adapt to the layout requirements of the busbar turning, while ensuring the safety protection of the busbar system. The heat dissipation performance of the busbar protection mechanism is effectively improved by the setting of heat dissipation holes 3, ensuring the temperature stability of the busbar under long-term operation. The design of the primary reinforcing rib 4 and the secondary reinforcing rib 5 enhances the overall structural strength of the busbar protection mechanism and improves its impact and seismic resistance. The primary protection component 9 can effectively absorb the external impact energy at the inside corner, and the secondary protection component 11 can also effectively absorb the external impact energy at the inside corner, thereby protecting the busbar from damage and improving the impact resistance of the mechanism.

[0023] Please see Figures 2-4In this embodiment, the primary reinforcing frame 4 consists of horizontal reinforcing bars and U-shaped vertical reinforcing bars, which are distributed in a crisscross pattern. The primary reinforcing frame 4 enhances the structural strength of the straight section 1 of the busbar protection mechanism, improving its impact and seismic resistance, and ensuring the safe operation of the busbar at that location. The secondary reinforcing frame 5 consists of small horizontal reinforcing bars, medium horizontal reinforcing bars, L-shaped horizontal reinforcing bars, and vertical reinforcing bars. The primary reinforcing frame 4 enhances the structural strength of the turning section 2 of the busbar protection mechanism, improving its impact and seismic resistance, and ensuring the safe operation of the busbar at that location. For safe operation, protrusions 6 are fixed on both the side of the primary reinforcing rib 4 away from the straight section 1 of the busbar protection mechanism and the side of the secondary reinforcing rib 5 away from the turning section 2 of the busbar protection mechanism. Several protrusions 6 are provided. This design increases the contact area between the reinforcing rib and the surrounding structure, preventing direct wear on the reinforcing rib. The corner support plates 7 have a triangular structure and are evenly spaced. The triangular corner support plates 7 increase the stability of the straight section 1 and the turning section 2 of the busbar protection mechanism. The first protection component 9... It also includes a first damper 901. A first damper 901 is fixedly installed on the side of the corner fixing rod 8 away from the turning section 2 of the busbar protection mechanism. Two first dampers 901 are provided. A corner buffer plate 903 is fixed to the end of the first damper 901 away from the corner fixing rod 8. A first spring 902 is fixed between the corner buffer plate 903 and the corner fixing rod 8. Through the combination of the first damper 901, the first spring 902, and the corner buffer plate 903, external impact energy is effectively absorbed, protecting the busbar from damage and improving the equipment's resistance. In terms of impact performance, the secondary protection component 11 also includes a second damper 1101. The second damper 1101 is fixedly installed on the side of the corner fixing rod 10 away from the turning section 2 of the busbar protection mechanism. There are two second dampers 1101. A corner buffer plate 1103 is fixed to the end of the second damper 1101 away from the corner fixing rod 10. A second spring 1102 is fixed between the corner buffer plate 1103 and the corner fixing rod 10. The secondary protection component 11 has the same structure as the first protection component 9 and also has excellent impact absorption and buffering capabilities.

[0024] During operation, several protrusions 6 prevent direct wear of the surrounding structure on the reinforcing ribs. The primary reinforcing ribs 4 and secondary reinforcing ribs 5 respectively enhance the structural strength of the straight section 1 and the turning section 2 of the busbar protection mechanism. When an external force impacts the inside corner of the turning section 2 of the busbar protection mechanism, the first damper 901 provides resistance to movement and the spring force of the first spring 902, allowing the inside corner buffer plate 903 to buffer within a certain range, effectively absorbing the external impact. Similarly, when an external force impacts the outside corner of the turning section 2 of the busbar protection mechanism, the outside corner buffer plate 1103 can buffer within a certain range to provide protection.

[0025] Through the above steps, the straight and turning sections of the mechanism are protected by the corresponding primary and secondary reinforcing ribs. The primary protection component effectively absorbs the external impact energy at the inside corner, and the secondary protection component also effectively absorbs the external impact energy at the inside corner, improving the impact resistance of the mechanism and thus protecting the busbar from damage. This solves the problem of insufficient protection at the turning points in existing busbar protection mechanisms.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. Low-voltage switchgear busbar protection mechanism, comprising a busbar protection mechanism straight section (1); characterized in that: The bus protection mechanism also comprises a turning section (2), heat dissipation holes (3), a first reinforcing rib rack (4), a second reinforcing rib rack (5), a first protection assembly (9) and a second protection assembly (11). The right end of the bus protection mechanism straight section (1) is fixedly connected with the bus protection mechanism turning section (2). The front and back sides of the bus protection mechanism straight section (1) and the front, back and left and right four sides of the bus protection mechanism turning section (2) are all provided with heat dissipation holes (3). The upper end of the bus protection mechanism straight section (1) is welded with the first reinforcing rib rack (4). The upper end of the bus protection mechanism turning section (2) is welded with the second reinforcing rib rack (5). The inner wall top end of the bus protection mechanism straight section (1) and the inner wall top end of the bus protection mechanism turning section (2) are both fixedly connected with the angle support plate (7). The left side and the front of the bus protection mechanism turning section (2) are both fixedly provided with the female angle fixed rod (8). The side, away from the bus protection mechanism turning section (2), of the female angle fixed rod (8) is provided with the first protection assembly (9). The first protection assembly (9) comprises a female angle buffer plate (903). The back side and the right side of the bus protection mechanism turning section (2) are both fixedly provided with the male angle fixed rod (10). The side, away from the bus protection mechanism turning section (2), of the male angle fixed rod (10) is provided with the second protection assembly (11). The second protection assembly (11) comprises a male angle buffer plate (1103).

2. The low voltage switchgear busbar protection mechanism of claim 1, wherein: The first reinforcing rib rack (4) is composed of large horizontal steel bars and U-shaped vertical steel bars, and the horizontal steel bars and the U-shaped vertical steel bars are longitudinally and transversely distributed.

3. The low voltage switchgear busbar protection mechanism of claim 1, wherein: The second reinforcing rib rack (5) is composed of small horizontal steel bars, middle horizontal steel bars, L-shaped horizontal steel bars and straight vertical steel bars.

4. The low voltage switchgear busbar protection mechanism of claim 2, wherein: The side, away from the bus protection mechanism straight section (1), of the first reinforcing rib rack (4) and the side, away from the bus protection mechanism turning section (2), of the second reinforcing rib rack (5) are both fixedly provided with the protrusion (6), and the protrusion (6) is provided with a plurality of protrusions.

5. The low voltage switchgear busbar protection mechanism of claim 1, wherein: The angle support plate (7) is triangular in structure and is equidistantly distributed.

6. The low voltage switchgear busbar protection mechanism of claim 1, wherein: The first protection assembly (9) further comprises a first damper (901), and the side, away from the bus protection mechanism turning section (2), of the female angle fixed rod (8) is fixedly provided with the first damper (901). The first damper (901) is provided with two first dampers (901). The end, away from the female angle fixed rod (8), of the first damper (901) is fixedly provided with the female angle buffer plate (903). The female angle buffer plate (903) and the female angle fixed rod (8) are fixedly provided with the first spring (902).

7. The low voltage switchgear busbar protection mechanism of claim 1, wherein: The second protection assembly (11) further comprises a second damper (1101), and the side, away from the bus protection mechanism turning section (2), of the male angle fixed rod (10) is fixedly provided with the second damper (1101). The second damper (1101) is provided with two second dampers (1101). The end, away from the male angle fixed rod (10), of the second damper (1101) is fixedly provided with the male angle buffer plate (1103). The male angle buffer plate (1103) and the male angle fixed rod (10) are fixedly provided with the second spring (1102).