Intensive bus duct fixing mechanism convenient to connect
By designing transfer and limit components, the problem of low efficiency in busbar bolt connections is solved, enabling rapid connection and disassembly of busbars and improving maintenance efficiency.
Patent Information
- Application Number
- CN202422980875.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The existing bolted connection method for busbar trunking results in low disassembly efficiency between densely packed busbar trunking, reducing the maintenance efficiency of maintenance personnel.
The design employs a transfer component and a limit component. The screw rod is driven by the screw sleeve to move, so that the snap-fit plate is snapped into the position of the busbar trunking. The limit rod is used for quick positioning, which enables the busbar trunking to be quickly connected and disassembled.
It improves the connection efficiency and stability of busbar trunking, simplifies maintenance and replacement operations, and enhances the work efficiency of maintenance personnel.
Smart Images

Figure CN223502527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of busbar technology, specifically to a compact busbar fixing mechanism that facilitates connection. Background Technology
[0002] Busbar trunking is an electrical structure used to fix busbars. It is a closed metal device made of copper or aluminum busbar columns and is used to distribute a large amount of power to various components of a distributed system. Compact busbar trunking is a type of busbar trunking that can be used to fix multiple copper plate busbars. Most compact busbar trunking is divided into multi-section structures, and multiple compact busbar trunkings are generally connected by bolts.
[0003] Existing busbar connections typically rely on bolts, requiring tools for maintenance. When a compact busbar or its copper busbars are damaged, disassembly is necessary. The traditional bolted connection method results in inefficient disassembly, reducing maintenance efficiency. To address this, we propose a more convenient and efficient busbar fixing mechanism. Utility Model Content
[0004] The purpose of this utility model is to provide a compact busbar fixing mechanism that is easy to connect, so as to solve the problem mentioned in the background art that the existing busbar bolt connection method results in low disassembly efficiency between compact busbars and reduces the maintenance efficiency of maintenance personnel.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a compact busbar fixing mechanism for easy connection, comprising a first busbar and a second busbar, wherein both sides of the first and second busbars are provided with symmetrical snap fasteners, and copper busbars are provided on the inner sides of both the first and second busbars, and the first and second busbars are connected by a transfer assembly, wherein the transfer assembly comprises a first snap-fit plate and a second snap-fit plate, wherein a first screw and a second screw are respectively provided on the opposite surfaces of the first and second snap-fit plates, and the first and second screws are connected by a threaded sleeve, wherein the threaded sleeve is provided between the first and second screws, and the threaded sleeve and the first and second screws are all threadedly connected, and the upper ends of the first and second snap-fit plates are provided with limit components facing each other;
[0006] The limiting component includes a support rod, which is inserted into a corresponding snap-fit plate. Each of the opposite ends of an adjacent support rod is provided with an abutment plate. An upper limiting plate and a lower limiting plate are slidably connected to the upper and lower ends of the abutment plates, respectively. A guide rod is movably inserted between the upper and lower limiting plates. A return spring is movably sleeved on the guide rod. The return spring is located between the upper and lower limiting plates. Limiting rods are provided on the opposite sides of the upper and lower limiting plates.
[0007] Preferably, both the first busbar and the second busbar housings are provided with slots for inserting limit rods, and the number of slots corresponds to the number of limit rods.
[0008] Preferably, the upper limit plate and the lower limit plate are symmetrically arranged vertically, and both the upper limit plate and the lower limit plate are located between the first snap-fit plate and the second snap-fit plate.
[0009] Preferably, both the first and second snap-fit plates have protrusions on their opposing surfaces, and the protrusions are in movable contact with the upper limit plate and the lower limit plate.
[0010] Preferably, both the upper limit plate and the lower limit plate have outwardly inclined slopes at their contact points with the protrusion.
[0011] Preferably, the limiting component is inserted between the upper and lower symmetrical buckle members.
[0012] Preferably, the contact plate, the upper limit plate, and the lower limit plate are all located inside the fastener.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This type of compact busbar fixing mechanism, which facilitates connection, utilizes a transfer component and a limiting component. When connecting the first and second busbars, rotating the screw sleeve in the forward direction causes the first and second screws to move simultaneously from the outside to the inside. The first and second locking plates move in the same direction, allowing them to engage with the corresponding sides of the first and second busbars. After the contact plate contacts the fastener, it can no longer move inward. At this point, the first and second locking plates slide from the inside to the outside on the corresponding support rods, causing the protrusion to contact the upper and lower limiting plates. This pushes the upper and lower limiting plates to move simultaneously from the inside to the outside, inserting the limiting rod into the corresponding slot of the busbar. This achieves rapid positioning, convenient operation, and a stable connection, making it easier to maintain and replace the busbars. Attached Figure Description
[0015] Figure 1 This is a first-view structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the second-view structure of the present invention;
[0017] Figure 3 This is a schematic diagram of a half-section of the present invention;
[0018] Figure 4 This is a half-sectional structural diagram of the transfer component of this utility model;
[0019] Figure 5 This is a half-sectional view of the limiting component of this utility model.
[0020] In the diagram: 1. First busbar trunking; 2. Second busbar trunking; 3. Transfer assembly; 31. First snap-fit plate; 32. Second snap-fit plate; 33. Limiting assembly; 331. Support rod; 332. Contact plate; 333. Upper limit plate; 334. Guide rod; 335. Reset spring; 336. Lower limit plate; 337. Limiting rod; 34. First screw; 35. Second screw; 36. Screw sleeve; 4. Fastener; 5. Copper busbar. Detailed Implementation
[0021] 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.
[0022] Example: Please refer to Figure 1-5 This utility model provides a technical solution: a compact busbar trunking fixing mechanism that is easy to connect, including a first busbar trunking 1 and a second busbar trunking 2. Both sides of the first busbar trunking 1 and the second busbar trunking 2 are provided with symmetrical buckle members 4. The buckle members 4 are fixed on the corresponding first busbar trunking 1 and the second busbar trunking 2. The inner side of the first busbar trunking 1 and the second busbar trunking 2 are provided with copper busbars 5. The first busbar trunking 1 and the second busbar trunking 2 are connected by a transfer component 3.
[0023] Please see Figure 2 and Figure 3The transfer component 3 includes a first snap-fit plate 31 and a second snap-fit plate 32. A first screw 34 and a second screw 35 are respectively disposed on opposite sides of the first snap-fit plate 31 and the second snap-fit plate 32. The first screw 34 and the second screw 35 are connected by a threaded sleeve 36, which is positioned between the first screw 34 and the second screw 35. The threaded sleeve 36 is threaded to both the first screw 34 and the second screw 35. Rotating the threaded sleeve 36 in the forward direction allows the first screw 34 and the second screw 35 to move simultaneously from the outside to the inside, thereby driving the first snap-fit plate 32. When plate 31 and the second locking plate 32 move simultaneously from the outside to the inside, they can engage with the corresponding sides of the first busbar groove 1 and the second busbar groove 2. Similarly, after rotating the screw sleeve 36 in the opposite direction, the first screw 34 and the second screw 35 can move simultaneously from the inside to the outside, thereby disengaging the first locking plate 31 and the second locking plate 32 from the sides of the first busbar groove 1 and the second busbar groove 2. This allows the first busbar groove 1 and the second busbar groove 2 to be separated, facilitating maintenance of the internal components of the busbar groove.
[0024] Please see Figure 4 and Figure 5 In this case, the upper ends of the first snap-fit plate 31 and the second snap-fit plate 32 are provided with limiting components 33 facing each other; the limiting components 33 are inserted between the upper and lower symmetrical snap fasteners 4.
[0025] Specifically, the limiting component 33 includes a support rod 331, which is inserted into the corresponding snap-fit plate. Each of the opposite ends of the adjacent support rods 331 is provided with an abutment plate 332. The opposite surfaces of the abutment plates 332 are glued with flexible rubber. By providing flexible rubber on the opposite surfaces of the abutment plates 332, the flexible rubber can further protect the busbar trunking from damage to the surface of the busbar trunking caused by the transfer component 3 during the connection, thus further ensuring the quality of the busbar trunking.
[0026] Furthermore, an upper limit plate 333 and a lower limit plate 336 are slidably connected to the upper and lower ends of the contact plate 332, respectively. The contact plate 332, the upper limit plate 333, and the lower limit plate 336 are all located inside the fastener 4. The upper limit plate 333 and the lower limit plate 336 are symmetrically arranged vertically, and both the upper limit plate 333 and the lower limit plate 336 are located between the first latching plate 31 and the second latching plate 32.
[0027] It is worth noting that a "T"-shaped groove is provided on the contact plate 332 for the upper limit plate 333 and the lower limit plate 336 to slide. The groove allows the upper limit plate 333 and the lower limit plate 336 to slide up or down on the contact plate 332.
[0028] Furthermore, both the first latching plate 31 and the second latching plate 32 have protrusions 311 on their opposing surfaces, and the protrusions 311 are in movable contact with the upper limit plate 333 and the lower limit plate 336. A guide rod 334 is movably inserted between the upper limit plate 333 and the lower limit plate 336, wherein the guide rod 334 passes through the abutment plate 332, and the diameter of the slot in the abutment plate 332 into which the guide rod 334 is inserted is larger than the outer diameter of the guide rod 334.
[0029] Furthermore, a return spring 335 is movably sleeved on the guide rod 334. The guide rod 334 guides the return spring 335, which passes through the contact plate 332 and is positioned between the upper limit plate 333 and the lower limit plate 336. The return spring 335 is welded to both the upper limit plate 333 and the lower limit plate 336 on the corresponding sides. The return spring 335 ensures that the initial distance between the upper limit plate 333 and the lower limit plate 336 is minimized, facilitating their engagement with the corresponding busbar.
[0030] Furthermore, both the upper limit plate 333 and the lower limit plate 336 have outwardly inclined slopes at their contact points with the protrusion 311. With these slopes, the first locking plate 31 and the second locking plate 32 drive the corresponding protrusion 311 to move inward. This allows the upper limit plate 333 and the lower limit plate 336 to move outward simultaneously, stretching the return spring 335.
[0031] Furthermore, both the upper limit plate 333 and the lower limit plate 336 have limit rods 337 on their back sides. The housings of the first busbar trough 1 and the second busbar trough 2 are provided with slots for the insertion of the limit rods 337, with the number of slots corresponding to the number of limit rods 337. When the upper limit plate 333 and the lower limit plate 336 move outward simultaneously, the limit rods 337 on their back sides can be inserted into the slots on the corresponding busbar troughs, achieving rapid positioning. Without the need for screw installation, the first busbar trough 1 and the second busbar trough 2 can be quickly connected, making operation convenient and further improving the connection efficiency of the busbar troughs.
[0032] Working principle: In the initial state, this type of compact busbar fixing mechanism, which facilitates connection, achieves its minimum distance between the upper limit plate 333 and the lower limit plate 336 through the connection action of the return spring 335. This allows the transfer component 3 to easily engage with the buckle 4 of the busbar. During the engagement operation, rotating the screw sleeve 36 in the forward direction causes the first screw 34 and the second screw 35 to move simultaneously from the outside to the inside, which in turn causes the first engaging plate 31 and the second engaging plate 32 to move simultaneously from the outside to the inside. This allows the first engaging plate 31 and the second engaging plate 32 to engage with the first busbar 1 and the second busbar 1. On the corresponding side of 2; as the screw sleeve 36 continues to rotate, the distance between the first snap-fit plate 31 and the second snap-fit plate 32 gradually decreases. After the contact plate 332 contacts the buckle 4, the contact plate 332 can no longer move inward. At this time, the first snap-fit plate 31 and the second snap-fit plate 32 slide from the inside to the outside on the corresponding support rod 331, so that the protrusion 311 contacts the upper limit plate 333 and the lower limit plate 336, thereby causing the upper limit plate 333 and the lower limit plate 336 to move from the inside to the outside at the same time, so that the limit rod 337 is inserted into the corresponding hole of the busbar groove, realizing quick positioning, convenient operation, and stable connection.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A compact busbar trunking fixing mechanism for easy connection, comprising a first busbar trunking (1) and a second busbar trunking (2), wherein both sides of the first busbar trunking (1) and the second busbar trunking (2) are provided with symmetrically arranged buckles (4), and both the first busbar trunking (1) and the second busbar trunking (2) are provided with copper busbars (5) on their inner sides, characterized in that: The first busbar trough (1) and the second busbar trough (2) are connected by a transfer assembly (3). The transfer assembly (3) includes a first snap-fit plate (31) and a second snap-fit plate (32). The first snap-fit plate (31) and the second snap-fit plate (32) are respectively provided with a first screw (34) and a second screw (35) on their opposite sides. The first screw (34) and the second screw (35) are connected by a threaded sleeve (36). The threaded sleeve (36) is located between the first screw (34) and the second screw (35), and the threaded sleeve (36) is threaded to the first screw (34) and the second screw (35). The upper ends of the first snap-fit plate (31) and the second snap-fit plate (32) are provided with limit components (33) facing each other. The limiting component (33) includes a support rod (331), which is inserted into a snap-fit plate on the corresponding side. Each of the adjacent support rods (331) has a contact plate (332) at its opposite ends. The upper and lower ends of the contact plate (332) are slidably connected to an upper limit plate (333) and a lower limit plate (336). A guide rod (334) is movably inserted between the upper limit plate (333) and the lower limit plate (336). A return spring (335) is movably sleeved on the guide rod (334). The return spring (335) is located between the upper limit plate (333) and the lower limit plate (336). Limiting rods (337) are provided on the opposite sides of the upper limit plate (333) and the lower limit plate (336).
2. The compact busbar trunking fixing mechanism for easy connection according to claim 1, characterized in that: The first busbar groove (1) and the second busbar groove (2) are provided with holes and slots for inserting the limiting rods (337), and the number of holes and slots corresponds to the number of limiting rods (337).
3. The compact busbar trunking fixing mechanism according to claim 1, characterized in that: The upper limit plate (333) and the lower limit plate (336) are arranged symmetrically, and both the upper limit plate (333) and the lower limit plate (336) are located between the first snap-fit plate (31) and the second snap-fit plate (32).
4. The compact busbar trunking fixing mechanism for easy connection according to claim 1, characterized in that: The first snap-fit plate (31) and the second snap-fit plate (32) are provided with protrusions (311) on their opposite surfaces. The protrusions (311) are in contact with the upper limit plate (333) and the lower limit plate (336).
5. The compact busbar trunking fixing mechanism for easy connection according to claim 1, characterized in that: The upper limit plate (333) and the lower limit plate (336) are both provided with outward inclined surfaces at the contact points with the protrusion (311).
6. The compact busbar trunking fixing mechanism according to claim 1, characterized in that: The limiting component (33) is inserted between the upper and lower symmetrical buckles (4).
7. The compact busbar trunking fixing mechanism according to claim 1, characterized in that: The contact plate (332), the upper limit plate (333) and the lower limit plate (336) are all located inside the fastener (4).