Improved bus duct with stable connection

The design of the upper and lower clamps and the pressure plate solves the problem of inconvenient busbar trunking connection, enabling rapid installation and convenient maintenance of the busbar trunking, ensuring stable electrical conduction, and improving the stability of the connection.

CN224218079UActive Publication Date: 2026-05-08JIANGSU ZHENGKAI ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ZHENGKAI ELECTRIC APPLIANCE CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing busbar trunking connections mainly rely on welding or bolting, which makes installation inconvenient and difficult to maintain and replace later.

Method used

The busbar end is pressurized by an upper and lower clamping structure, combined with a pressure plate and an inclined plate. The busbar end is precisely connected by using a limit groove and a positioning groove, guided by a pin and a hole, and then fixed with a nut to ensure tight contact between the busbar ends.

Benefits of technology

It enables rapid installation and convenient maintenance of busbar trunking, better ensures stable electrical conduction, avoids gaps, and improves the stability and convenience of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an improved bus duct with stable connection, which belongs to the technical field of bus ducts and comprises a bus duct body. The busbar end is arranged on the outer side wall of the bus duct body in a penetrating and protruding manner; the positioning groove and the limiting groove are formed in the top of the bus duct body, and the positioning groove is located on one side of the limiting groove; the upper clamp and the lower clamp are arranged between two adjacent bus duct bodies, and the upper clamp is located above the lower clamp; the first compression plate is arranged at the top of the interior of the upper clamp; the inclined plate I is arranged at the bottom of the compression plate I; the guide groove is formed in the position, close to one side of the first pressing plate, of the top of the interior of the upper clamp; according to the utility model, the upper clamp and the lower clamp are clamped at the joint of the adjacent bus duct bodies, so that on one hand, one bus duct body is pulled to move towards the other bus duct body by utilizing thrust, busbar ends needing to be connected are ensured to be in a precise dislocation butt joint state, and the subsequent close connection of the busbar ends is facilitated;
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Description

Technical Field

[0001] This utility model belongs to the field of busbar technology, specifically relating to an improved busbar with a stable connection. Background Technology

[0002] Busbar trunking is a closed metal device made of copper or aluminum busbar columns, used to distribute a large amount of power to various components of a distributed system.

[0003] Since the length of a single busbar trunking is limited, multiple busbar trunkings need to be connected when laying busbar trunkings. In the existing technology, the connection method for adjacent busbar trunkings is generally to use welding or bolts to make the busbar ends contact tightly. However, this connection method is not convenient for later maintenance and replacement, and is also inconvenient to install.

[0004] Therefore, an improved busbar trunking with a stable connection is proposed. Summary of the Invention

[0005] This invention provides an improved busbar trunking with a stable connection, the purpose of which is to solve the problems mentioned above.

[0006] This utility model embodiment provides an improved busbar trunking with a stable connection, including a busbar trunking body; a busbar end protruding through the outer wall of the busbar trunking body; a positioning groove and a limiting groove formed on the top of the busbar trunking body, the positioning groove being located on one side of the limiting groove; an upper clamp and a lower clamp provided between two adjacent busbar trunking bodies, the upper clamp being located above the lower clamp; a pressure plate one provided on the top of the upper clamp; an inclined plate one provided at the bottom of the pressure plate one; a guide groove formed on the top of the upper clamp near the pressure plate one; a guide frame sliding on the inner wall of the guide groove; a limiting block provided at the bottom of the guide frame; a positioning block provided on the top of the upper clamp near the other side of the pressure plate one; a boss provided on the top of the upper clamp; an adjusting screw threaded to the outer wall of the boss, the adjusting screw being rotatably connected to the guide frame; a second pressure plate two provided on the top of the lower clamp; and a second inclined plate two provided on the top of the pressure plate two.

[0007] Furthermore, the bottom of the upper clamp is provided with a plug, and the top of the lower clamp is provided with a hole located directly below the plug. The outer side wall of the upper clamp is provided with a vertically downward fastening screw, and the outer side wall of the lower clamp is provided with a vertically upward through hole.

[0008] Furthermore, the inner length of the positioning groove is less than the inner length of the limiting groove, and the positioning groove and the positioning block are compatible, and the limiting block can be inserted into the limiting groove.

[0009] By adopting the above technical solution, a larger area can be provided for the insertion of the limiting block 55 through the large-range limiting groove.

[0010] Furthermore, the first and second pressure plates are respectively tightly attached to the outer side wall of the busbar end on the two adjacent busbar trunking bodies;

[0011] By adopting the above technical solution, pressure can be applied to the ends of adjacent busbars using pressure plate one and pressure plate two, ensuring close contact between the ends of adjacent busbars, avoiding gaps, and thus ensuring stable electrical conduction.

[0012] Furthermore, the top of the guide frame passes through the top of the upper clamp, and the top of the upper clamp is provided with a through slot that allows the guide frame to move linearly.

[0013] By adopting the above technical solution, the guide frame can be moved easily.

[0014] Furthermore, the insertion post and the insertion hole are compatible, the fastening screw can pass through the through hole, and a nut is threaded onto the outer wall of the fastening screw near the lower part of the through hole;

[0015] By adopting the above technical solution, the upper and lower clamps can be guided by inserting the pin into the insertion hole during the docking process, ensuring that the upper and lower clamps are accurately docked. By gradually tightening the nut, the upper and lower clamps can be firmly docked.

[0016] Furthermore, the included angle between the first pressing plate and the first inclined plate is 150 degrees, and the included angle between the second pressing plate and the second inclined plate is also 150 degrees.

[0017] By adopting the above technical solution, the inclined plates 1 and 2, which are tilted at 150 degrees, can provide guidance when the pressure plates 1 and 2 are inserted to the outside of the adjacent busbar ends, so as to gradually apply forces that move closer to each other to the busbar ends, thereby ensuring that the adjacent busbar ends are in close contact.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model uses upper and lower clamps to engage at the connection points of adjacent busbar trunking bodies. On one hand, it uses thrust to pull one busbar trunking body towards the other, ensuring that the busbar ends to be connected are in a precisely misaligned docking state, facilitating a tight connection of the subsequent busbar ends. On the other hand, pressure plates one and two can apply pressure to the adjacent busbar ends, ensuring tight contact between the adjacent busbar ends and preventing gaps, thereby ensuring stable electrical conduction. The clamps quickly fix the two busbar trunking sections, making it suitable for temporary or on-site rapid installation and also facilitating later maintenance and replacement.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the upper clamp structure according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the lower clamp structure according to an embodiment of the present utility model;

[0025] Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A in the diagram;

[0026] Figure 5 This is a bottom view of the upper clamp according to an embodiment of the present utility model;

[0027] Reference numerals in the attached drawings: 1. Busbar trunking body; 2. Busbar end; 3. Positioning groove; 4. Limiting groove; 5. Upper clamp; 51. Pressure plate one; 52. Inclined plate one; 53. Guide groove; 54. Guide frame; 55. Limiting block; 56. Positioning block; 57. Boss; 58. Adjusting screw; 59. Insertion post; 6. Lower clamp; 61. Pressure plate two; 62. Inclined plate two; 63. Insertion hole; 7. Fastening screw; 8. Through hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Reference Figure 1-5This utility model embodiment proposes an improved busbar trunking with a stable connection, including a busbar trunking body 1. A busbar end 2 is protruding through the outer wall of the busbar trunking body 1. An upper clamp 5 and a lower clamp 6 are provided on one side of the busbar trunking body 1. The upper clamp 5 is located above the lower clamp 6. A pressure plate 51 is provided at the top of the interior of the upper clamp 5. An inclined plate 52 is integrally formed at the bottom of the pressure plate 51. A second pressure plate 61 is provided at the top of the lower clamp 6. The pressure plate 51 and... Pressure plates 61 are respectively attached tightly to the outer walls of the busbar ends 2 on the two adjacent busbar trunking bodies 1. Pressure plates 51 and 61 apply pressure to the adjacent busbar ends 2, ensuring tight contact and preventing gaps, thus guaranteeing stable electrical conduction. An inclined plate 62 is provided at the top of pressure plate 61. The angle between pressure plates 51 and 52 and the angle between pressure plates 61 and 62 are both 150 degrees. The 0-degree inclined plates 52 and 62 provide guidance when the pressure plates 51 and 61 are inserted to the outside of the adjacent busbar ends 2, facilitating the gradual application of forces towards each other to the busbar ends 2, thereby ensuring close contact between the adjacent busbar ends 2. The bottom of the upper clamp 5 is symmetrically provided with four insertion pins 59, and the top of the lower clamp 6 is provided with insertion holes 63 located directly below the four insertion pins 59. Two vertically downward fastening screws are symmetrically provided on the outer wall of the upper clamp 5. 7. Two vertically upward through holes 8 are symmetrically opened on the outer side wall of the lower clamp 6. The insertion post 59 and the insertion hole 63 are matched. The fastening screw 7 can pass through the through hole 8. A nut is threaded on the outer side wall of the fastening screw 7 near the lower part of the through hole 8. The insertion post 59 is inserted into the insertion hole 63 to guide the upper clamp 5 and the lower clamp 6 during the docking process, ensuring that the upper clamp 5 and the lower clamp 6 are accurately docked. By gradually tightening the nut, the upper clamp 5 and the lower clamp 6 can be firmly docked.

[0030] The top of the busbar trunking body 1 is symmetrically provided with two positioning grooves 3 and two limiting grooves 4. The positioning grooves 3 are located on one side of the limiting grooves 4. The top of the upper clamp 5 is provided with a guide groove 53 near the pressure plate 51. A guide frame 54 is slidably connected inside the guide groove 53. The top of the guide frame 54 passes through the top of the upper clamp 5. The top of the upper clamp 5 is provided with a through groove for the guide frame 54 to move linearly, which facilitates the movement of the guide frame 54. Two limiting blocks 55 are symmetrically provided at the bottom of the guide frame 54. The top of the upper clamp 5 is located near the pressure plate 51. Two positioning blocks 56 are symmetrically arranged on the other side. The inner length of the positioning groove 3 is less than the inner length of the limiting groove 4, and the positioning groove 3 and the positioning block 56 are compatible. The limiting block 55 can be inserted into the limiting groove 4. The large-range limiting groove 4 can provide more area for the insertion of the limiting block 55. The top of the upper clamp 5 is provided with a boss 57. An adjusting screw 58 is screwed into the center of one side of the outer wall of the boss 57. One end of the adjusting screw 58 is rotatably connected to one side of the outer wall of the guide frame 54, and the other end of the adjusting screw 58 is provided with a handwheel.

[0031] The specific implementation method is as follows: When connecting adjacent busbar trunking bodies 1, first hoist the adjacent busbar trunking bodies 1 to the same height, cover one side of the adjacent busbar trunking bodies 1 with the upper clamp 5, then insert the positioning block 56 on the upper clamp 5 into the positioning groove 3 on one of the busbar trunking bodies 1, and insert the limiting block 55 into the limiting groove 4 on the other busbar trunking body 1. Rotate the adjusting screw 58, and through the threaded connection between the adjusting screw 58 and the boss 57, one end of the adjusting screw 58 pushes... The guide frame 54 moves and slides within the guide groove 53. When the guide frame 54 moves, the limiting block 55 at the bottom of the guide frame 54 moves synchronously. When the limiting block 55 contacts the inner wall of one side of the limiting groove 4, the limiting block 55 cannot move. At this time, the adjusting screw 58 is rotated continuously. Under the action of thrust, the guide frame 54 pulls one of the busbar trunk bodies 1 toward the other busbar trunk body 1. The two busbar trunk bodies 1 move toward each other and the staggered busbar ends 2 are joined together.

[0032] Then, guided by the insertion post 59 and the insertion hole 63, the lower clamp 6 is moved vertically upward and docks with the upper clamp 5. The nut is rotated on the fastening screw 7 to fix the lower clamp 6 and the upper clamp 5. As the lower clamp 6 moves upward, the second pressure plate 61 and the second tilting plate 62 move upward synchronously. The first tilting plate 52 and the second tilting plate 62 guide the misaligned busbar ends 2 to come closer together. The first pressure plate 51 and the second pressure plate 61 can apply pressure to the adjacent busbar ends 2 to ensure close contact between the adjacent busbar ends 2 and avoid gaps, thereby ensuring stable electrical conduction.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved busbar trunking system with a stable connection, characterized in that: Includes the busbar trunking body (1); The busbar end (2) protrudes through the outer wall of the busbar trunking body (1); and A positioning groove (3) and a limiting groove (4) are formed on the top of the busbar trunking body (1), wherein the positioning groove (3) is located on one side of the limiting groove (4); An upper clamp (5) and a lower clamp (6) are provided between two adjacent busbar trunking bodies (1), with the upper clamp (5) located above the lower clamp (6); A pressure plate (51) is provided at the top inside the upper clamp (5); An inclined plate (52) is provided at the bottom of the pressure plate (51); A guide groove (53) is provided inside the upper clamp (5) at the top, near the side of the pressure plate (51); The guide frame (54) slides on the inner wall of the guide groove (53); A limiting block (55) is provided at the bottom of the guide frame (54); A positioning block (56) is located inside the upper clamp (5) at the top, near the other side of the pressure plate (51); A boss (57) is provided on the top of the upper clamp (5); An adjusting screw (58) is threaded onto the outer wall of the boss (57), and the adjusting screw (58) and the guide frame (54) are rotatably connected. A pressure plate 2 (61) is provided on the top of the lower clamp (6); An inclined plate two (62) is provided on top of the pressure plate two (61).

2. The improved busbar trunking with a stable connection according to claim 1, characterized in that: The upper clamp (5) has a pin (59) at its bottom, and the lower clamp (6) has a hole (63) at its top near the pin (59) directly below it. The upper clamp (5) has a vertically downward fastening screw (7) on its outer side wall, and the lower clamp (6) has a vertically upward through hole (8) on its outer side wall.

3. The improved busbar trunking with a stable connection according to claim 1, characterized in that: The inner length of the positioning groove (3) is less than the inner length of the limiting groove (4), and the positioning groove (3) and the positioning block (56) are compatible. The limiting block (55) can be inserted into the limiting groove (4).

4. The improved busbar trunking with a stable connection according to claim 1, characterized in that: The first pressure plate (51) and the second pressure plate (61) are respectively attached to the outer side wall of the busbar end (2) on the two adjacent busbar trunk bodies (1).

5. The improved busbar trunking with a stable connection according to claim 1, characterized in that: The top of the guide frame (54) passes through the top of the upper clamp (5), and the top of the upper clamp (5) is provided with a through groove that allows the guide frame (54) to move linearly.

6. The improved busbar trunking with a stable connection according to claim 2, characterized in that: The insert (59) and the insertion hole (63) are compatible, the fastening screw (7) can pass through the through hole (8), and a nut is threaded on the outer side wall of the fastening screw (7) near the position below the through hole (8).

7. The improved busbar trunking with a stable connection according to claim 1, characterized in that: The angle between the first pressing plate (51) and the first tilting plate (52) is 150 degrees, as is the angle between the second pressing plate (61) and the second tilting plate (62).