A high-low voltage distribution cabinet busbar support structure convenient to maintain

Abstract

The utility model relates to busbar structure technical field discloses a high low voltage distribution cabinet busbar support structure convenient to maintain, including two L shape support bars, two L shape support bars outer walls all are fixedly connected with fixed square groove board, fixed square groove board outer wall is fixedly connected with three fixed sliding blocks, and the fixed sliding block outer wall is provided with fixed clamping assembly, the fixed clamping assembly includes fixed plate no.

Description

Technical Field

[0001] This utility model relates to the field of high busbar structure technology, and in particular to a high and low voltage distribution cabinet busbar support structure that is easy to maintain. Background Technology

[0002] In the operation system of high and low voltage switchgear, the busbar, as the core component carrying current transmission, is directly related to the reliability of the power distribution system through its stable installation and safe operation. The busbar support structure, as a key component for fixing the busbar, must not only bear the weight of the busbar itself but also resist the electromagnetic forces generated when current flows through, equipment vibrations, and stresses caused by changes in ambient temperature. Therefore, its structural design must simultaneously meet three core requirements: support stability, insulation safety, and ease of maintenance. This is the foundation for ensuring the long-term efficient operation of the switchgear.

[0003] Currently, traditional busbar support structures mostly adopt a decentralized fixing method: multiple independent metal brackets provide multi-point support for the busbar, and the brackets are rigidly connected to the distribution cabinet body by bolts; insulating gaskets are usually used to achieve insulation between the busbar and the brackets, and the busbar is fixed by bolts that pass through the busbar and the brackets. The pressure generated by tightening the nuts clamps the busbar onto the brackets. Some structures add flat washers or spring washers between the bolts and the busbar to reduce damage to the surface of the busbar and enhance the anti-loosening effect of the connection.

[0004] However, this method of fixing by directly clamping with bolts requires tightening each bolt individually during the installation and removal of the busbars. This is not only cumbersome, but also inconvenient due to the limited space inside the distribution cabinet and the difficulty in using tools, resulting in extremely low installation and removal efficiency during maintenance. At the same time, the tightening force of the bolts depends entirely on manual experience. If the force is insufficient, the busbars are prone to loosening under long-term vibration, affecting the stability of current transmission. If the force is too great, it may cause deformation of the busbar surface or damage to the insulation gaskets, which may exacerbate safety hazards. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high and low voltage distribution cabinet busbar support structure that is easy to maintain. It aims to improve the problems of traditional equipment support being scattered, busbars being easy to loosen, relying on bolts for installation and removal, cumbersome operation, and clamping force relying on manual control.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high and low voltage distribution cabinet busbar support structure that is easy to maintain, including two L-shaped support rods, each of the two L-shaped support rods having a fixed square groove plate fixedly connected to its outer wall, and three fixed sliders having a fixed clamping assembly provided on the outer wall of each fixed square groove plate.

[0007] The fixed clamping assembly includes a fixed plate, a fixed slider fixedly connected to the outer wall of the fixed plate, a supporting rod fixedly connected to the outer wall of the fixed plate, a ceramic insulator fixedly connected to the outer wall of the supporting rod, a fixed plate fixedly connected to one end of the supporting rod, a clamp mounting plate fixedly connected to the outer wall of the supporting rod, damping rubber fixedly connected to both sides of the outer wall of the clamp mounting plate, a connecting rod fixedly connected to the outer wall of the clamp mounting plate, a double-ended screw fixedly connected to the outer wall of the connecting rod, two limiting plates fixedly connected to the middle of the double-ended screw, springs provided on the outer walls of the two limiting plates, guide sleeves fixedly connected to the outer walls of the two springs, a protective circular plate fixedly connected to one side of the outer wall of the double-ended screw, and a handle rotatably connected to the other side of the outer wall of the double-ended screw.

[0008] Furthermore, an upper support plate is fixedly connected to the outer wall of the L-shaped support rod, a fixed square rod is fixedly connected to the outer wall of the upper support plate, a lower support plate two is fixedly connected to the bottom of the upper support plate, a base is fixedly connected to the outer wall of the lower support plate two, and a lower support plate one is fixedly connected to the outer wall of the two L-shaped support rods.

[0009] Furthermore, the double-ended screw is rotatably connected to the inner wall of the guide sleeve, and the double-ended screw is fixedly connected to the top of the second fixing plate.

[0010] Furthermore, both guide sleeves are fixedly connected to L-shaped clamps on their outer walls, and both L-shaped clamps are provided with conductive busbars on their outer walls.

[0011] Furthermore, both L-shaped clamps have mounting holes inside.

[0012] Furthermore, the base is fixedly connected to the bottom of the conductive busbar, and the conductive busbar is fixedly connected to the top of the fixed square rod.

[0013] Furthermore, both of the aforementioned damping rubber outer walls are disposed on one side of the L-shaped clamp.

[0014] This utility model has the following beneficial effects:

[0015] In this invention, the double-ended screw and the handle, in conjunction with the guide sleeve, enable the L-shaped clamp to open and close quickly, allowing the busbar to be installed and removed without the need for bolts, thus significantly improving maintenance efficiency. The combination of spring and damping rubber ensures stable clamping force through elastic buffering, preventing both loosening of the busbar due to excessive looseness and damage to the busbar due to excessive tightness. At the same time, the damping rubber also reduces friction and wear between the clamp and the busbar, extending the service life of the components.

[0016] In this invention, a rigid, integrated support frame is formed by combining an L-shaped support rod, an upper support plate, a lower support plate, and a base. This frame can evenly transfer the weight and force of the busbar to the base, avoiding the deformation problem caused by the dispersed force in traditional structures. At the same time, the fixed connection between the fixed square groove plate and the L-shaped support rod provides a stable installation foundation for the busbar clamping assembly, ensuring that the busbar does not shift during long-term use and reducing safety hazards such as poor contact and overheating caused by unstable support. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a high- and low-voltage distribution cabinet busbar support structure that is easy to maintain, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the support structure of the busbar support structure of a high and low voltage distribution cabinet that is easy to maintain, as proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the clamp assembly of a high- and low-voltage distribution cabinet busbar support structure that is easy to maintain, as proposed in this utility model.

[0020] Figure 4 This is a structural breakdown diagram of the clamp assembly of a high- and low-voltage distribution cabinet busbar support structure that is easy to maintain, as proposed in this utility model.

[0021] Figure 5 This is a structural breakdown diagram of the clamp assembly of a high- and low-voltage distribution cabinet busbar support structure that is easy to maintain, as proposed in this utility model.

[0022] Legend:

[0023] 1. L-shaped support rod; 2. Fixed square rod; 3. Upper support plate; 4. Base; 5. Lower support plate one; 6. Lower support plate two; 7. Fixed square channel plate; 8. Fixed slider; 9. Conductive busbar; 10. Fixed plate one; 11. Ceramic insulator; 12. Support round rod; 13. Clamp mounting plate; 14. Damping rubber; 15. L-shaped clamp; 16. Guide sleeve; 17. Fixed plate two; 18. Spring; 19. Handle; 20. Double-ended screw; 21. Protective round plate; 22. Mounting hole; 23. Connecting rod; 24. Limiting plate. Detailed Implementation

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

[0025] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a high and low voltage distribution cabinet busbar support structure that is easy to maintain, including two L-shaped support rods 1. The outer walls of the two L-shaped support rods 1 are fixedly connected to fixed square groove plates 7. The fixed square groove plates 7 are fixed to the outer walls of the L-shaped support rods 1 to provide an installation carrier for the busbar clamping assembly. The outer walls of the fixed square groove plates 7 are fixedly connected to three fixed sliders 8. The outer walls of the fixed sliders 8 are provided with fixed clamping assemblies.

[0026] The fixed clamping assembly includes a fixed plate 10, a fixed slider 8 fixedly connected to the outer wall of the fixed plate 10, a supporting round rod 12 fixedly connected to the outer wall of the fixed plate 10, a ceramic insulator 11 fixedly connected to the outer wall of the supporting round rod 12, a fixed plate 10 fixedly connected to one end of the supporting round rod 12, and a clamp mounting plate 13 fixedly connected to the outer wall of the supporting round rod 12. The ceramic insulator 11 fixed to the outer wall of the supporting round rod 12 can isolate the conductive busbar 9 from the metal support frame to prevent leakage current from the busbar from being conducted to the support structure. Damping rubber 14 is fixedly connected to both sides of the outer wall of the clamp mounting plate 13. A connecting rod 23 is fixedly connected to the wall, and a double-ended screw 20 is fixedly connected to the outer wall of the connecting rod 23. Two limiting plates 24 are fixedly connected to the middle of the double-ended screw 20. Springs 18 are provided on the outer walls of the two limiting plates 24. The springs 18 in the middle of the double-ended screw 20 are sleeved on the outside of the two limiting plates 24. When the L-shaped clamp 15 clamps the busbar, the springs 18 are compressed, generating a reverse elastic force, so that the clamp applies continuous pressure to the busbar. Guide sleeves 16 are fixedly connected to the outer walls of the two springs 18. A protective circular plate 21 is fixedly connected to one side of the outer wall of the double-ended screw 20, and a handle 19 is rotatably connected to the other side of the outer wall of the double-ended screw 20.

[0027] Reference Figure 1 - Figure 5 An upper support plate 3 is fixedly connected to the outer wall of an L-shaped support rod 1. A fixed square rod 2 is fixedly connected to the outer wall of the upper support plate 3. The upper support plate 3 and the fixed square rod 2 are connected to form a horizontally stable structure at the top. A lower support plate 2 6 is fixedly connected to the bottom of the upper support plate 3. A base 4 is fixedly connected to the outer wall of the lower support plate 2 6. A lower support plate 1 5 is fixedly connected to the outer wall of two L-shaped support rods 1. A double-ended screw 20 is rotatably connected to the inner wall of a guide sleeve 16. The double-ended screw 20 is fixedly connected to the top of a fixed plate 2 17. Each guide sleeve 16 has an L-shaped clamp 15 fixedly connected to its outer wall. Each L-shaped clamp 15 has a conductive busbar 9 on its outer wall. The damping rubber 14 on one side of the L-shaped clamp 15 can buffer the impact force during clamping, reduce the wear on the surface of the L-shaped clamp 15, and extend its service life. Each L-shaped clamp 15 has a mounting hole 22 inside. The base 4 is fixedly connected to the bottom of the conductive busbar 9, and the conductive busbar 9 is fixedly connected to the top of the fixed square rod 2. The outer walls of the two damping rubbers 14 are all located on one side of the L-shaped clamp 15.

[0028] Working principle: First, the L-shaped support rod 1 is used as the main load-bearing component. It is connected to the fixed square rod 2 through the upper support plate 3 to form a horizontally stable structure at the top. The bottom is fixed to the base 4 through the lower support plate 1 5 and the lower support plate 2 6, so that the weight of the entire structure is transferred to the base 4, ensuring that the whole structure does not shake when installed in the distribution cabinet. The fixed square channel plate 7 is fixed to the outer wall of the L-shaped support rod 1 to provide an installation carrier for the busbar clamping assembly.

[0029] Secondly, the force on the busbar is concentrated on the support frame to avoid excessive local stress and deformation. When the handle 19 is turned, the double-ended screw 20 rotates accordingly. Since the inner wall of the guide sleeve 16 is rotatably connected to the double-ended screw 20, and the guide sleeve 16 is restricted to the top of the fixed plate 17, the rotation of the screw will drive the two guide sleeves 16 to move towards or away from each other along the screw. The outer wall of the guide sleeve 16 is connected to the L-shaped clamp 15. Therefore, the movement of the guide sleeve 16 directly drives the L-shaped clamp 15 to open and close, realizing the clamping or loosening of the conductive busbar 9. The spring in the middle of the double-ended screw 20 The 18 springs are set on the outside of the two limit plates 24. When the L-shaped clamp 15 clamps the busbar, the spring 18 is compressed, generating a reverse elastic force, so that the clamp applies continuous pressure to the busbar, avoiding the busbar from loosening due to vibration or temperature changes. The damping rubber 14 on one side of the L-shaped clamp 15 can buffer the impact force during clamping, reduce the wear on the surface of the L-shaped clamp 15, and extend its service life. The outer wall of the support rod 12 is fixed with a ceramic insulator 11, which can isolate the conductive busbar 9 from the metal support frame, prevent the leakage current of the busbar from being conducted to the support structure, and avoid the risk of short circuit or electric shock in the distribution cabinet.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A maintenance-friendly high and low voltage switchgear busbar support structure, comprising two L-shaped support rods (1), characterized in that: The outer walls of the two L-shaped support rods (1) are fixedly connected to fixed square groove plates (7), and the outer walls of the fixed square groove plates (7) are fixedly connected to three fixed sliders (8). The outer walls of the fixed sliders (8) are provided with fixed clamping components. The fixed clamping assembly includes a fixed plate (10), a fixed slider (8) fixedly connected to the outer wall of the fixed plate (10), a supporting round rod (12) fixedly connected to the outer wall of the fixed plate (10), a ceramic insulator (11) fixedly connected to the outer wall of the supporting round rod (12), a fixed plate (10) fixedly connected to one end of the supporting round rod (12), a clamp mounting plate (13) fixedly connected to the outer wall of the supporting round rod (12), and damping rubber (14) fixedly connected to both sides of the outer wall of the clamp mounting plate (13). A connecting rod (23) is fixedly connected to the outer wall of the fixture mounting plate (13). A double-ended screw (20) is fixedly connected to the outer wall of the connecting rod (23). Two limiting plates (24) are fixedly connected to the middle of the double-ended screw (20). Springs (18) are provided on the outer walls of the two limiting plates (24). Guide sleeves (16) are fixedly connected to the outer walls of the two springs (18). A protective circular plate (21) is fixedly connected to one side of the outer wall of the double-ended screw (20). A handle (19) is rotatably connected to the other side of the outer wall of the double-ended screw (20).

2. The easy-to-maintain high and low voltage distribution cabinet busbar support structure according to claim 1, characterized in that: The outer wall of the L-shaped support rod (1) is fixedly connected to an upper support plate (3), the outer wall of the upper support plate (3) is fixedly connected to a fixed square rod (2), the bottom of the upper support plate (3) is fixedly connected to a lower support plate (6), the outer wall of the lower support plate (6) is fixedly connected to a base (4), and the outer walls of the two L-shaped support rods (1) are fixedly connected to a lower support plate (5).

3. The easy-to-maintain high and low voltage distribution cabinet busbar support structure according to claim 1, characterized in that: The double-ended screw (20) is rotatably connected to the inner wall of the guide sleeve (16), and the double-ended screw (20) is fixedly connected to the top of the fixing plate (17).

4. The easy-to-maintain high and low voltage distribution cabinet busbar support structure according to claim 1, characterized in that: Both guide sleeves (16) are fixedly connected to L-shaped clamps (15) on their outer walls, and both L-shaped clamps (15) are provided with conductive busbars (9) on their outer walls.

5. The easy-to-maintain high and low voltage distribution cabinet busbar support structure according to claim 1, characterized in that: Both L-shaped clamps (15) have mounting holes (22) inside.

6. The easy-to-maintain busbar support structure for high and low voltage distribution cabinets according to claim 2, characterized in that: The base (4) is fixedly connected to the bottom of the conductive busbar (9), and the conductive busbar (9) is fixedly connected to the top of the fixed square rod (2).

7. The easy-to-maintain high and low voltage distribution cabinet busbar support structure according to claim 1, characterized in that: Both of the outer walls of the damping rubber (14) are set on one side of the L-shaped clamp (15).

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