Sliding contact type bus duct with T-shaped conducting bars

Abstract

The utility model discloses a sliding contact type bus duct with a T-shaped conducting bar, which comprises an inverted U-shaped bus duct and a middle conducting bar integrally formed at the central position of the top of the inverted U-shaped bus duct, and I-shaped ribs are integrally formed on the left outer wall and the right outer wall of the middle conducting bar. An upper conductive concave seat and a lower conductive concave seat are integrally formed on the outer wall of the middle conductive bar on one side of the I-shaped rib, T-shaped wire supporting cavities for storing cables are formed between the top end and the bottom end of the I-shaped rib and the upper conductive concave seat and between the top end and the bottom end of the I-shaped rib and the lower conductive concave seat, and supporting plates are fixed to the outer walls of the sides, away from the middle conductive bar, of the I-shaped rib and the lower conductive concave seat. According to the utility model, an operator is allowed to complete the installation of a cable and a bus duct without power failure, the T-shaped wire supporting cavity can effectively accommodate the cable, and after the cable is placed in, the baffle plate is automatically reset through the reset torsion spring structure, so that the cable is ensured to be stably contacted with the conducting bar, and power supply is not required to be interrupted.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically a sliding bus tray with T-shaped conductive bars. Background Technology

[0002] Busbar trunking with insulated conductors is a highly efficient and safe power transmission device widely used in industrial and commercial buildings. Its main function is to effectively transmit large amounts of current to meet the power supply needs of large equipment and power systems. The structure of a busbar trunking mainly consists of conductors, insulating material, a casing, and connectors. The conductors are typically made of copper or aluminum, possessing excellent conductivity, while the insulating material covers the outside of the conductors to ensure that current does not leak into the external environment. The casing provides mechanical protection and shielding, while also aiding in heat dissipation and preventing overheating. Connectors are used to connect multiple busbar segments together to ensure continuous current transmission. In terms of working principle, the busbar relies on the conductivity of the conductive busbar and the insulation of the insulating material to ensure uniform current distribution within the busbar and reduce energy loss. For example, a sliding busbar with a T-shaped conductive busbar disclosed in patent announcement number CN214674188U includes a device body with internal grooves and several mounting slots arranged symmetrically on both sides of the device body. A conductive rail is fixed inside each mounting slot, and a pressing component is installed on the conductive busbar. During the movement of the conductive busbar, a spring presses the conductive block and the fixing block firmly against the conductive rail and the fixed block. Inside the mounting trough, the movement of the conductive busbar will prevent the conductive busbar from creating a loose connection with the conductive rail. The fixing rod and sliding groove also prevent the spring from detaching from the conductive busbar during movement. However, in this technical solution, the cable to be supported needs to be threaded between the conductive rail and the conductive busbar. This is still possible for unconnected cables, but for cables that have already been installed and are energized, one end of the cable needs to be disconnected before it can be introduced. Directly introducing the cable while it is energized can lead to arcing, short circuits, or other electrical faults, posing a risk of electric shock to operators. This also means that when the busbar trough is used to maintain or expand energized and laid-out cables, the entire power system needs to be shut down, causing production interruption. Utility Model Content

[0003] The purpose of this utility model is to provide a sliding busbar trunking with a T-shaped conductive bar. The inverted U-shaped busbar trunking is equipped with a central conductive bar. The left and right outer walls of the central conductive bar are integrally formed with an I-shaped rib, an upper conductive recess, and a lower conductive recess. The upper and lower conductive recesses and the I-shaped rib form a T-shaped cable support cavity for storing cables. After the cable is placed into the T-shaped cable support cavity, the torsion spring reset structure in the support plate resets the baffle and closes the T-shaped cable support cavity to prevent the cable from falling out and ensure stable contact between the cable and the central conductive bar, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sliding busbar trunking with a T-shaped conductive bar, comprising an inverted U-shaped busbar trunking and a centrally located conductive bar integrally formed at the top center of the inverted U-shaped busbar trunking. I-beams are integrally formed on both the left and right outer walls of the centrally located conductive bar. An upper conductive recess and a lower conductive recess are integrally formed on the outer wall of the centrally located conductive bar on one side of the I-beam. A T-shaped cable support cavity for cable storage is provided between the top and bottom ends of the I-beam and the upper and lower conductive recesses. A support plate is fixed on the outer wall of the I-beam and the lower conductive recess away from the centrally located conductive bar, and a baffle is hinged to the outer wall of the support plate away from the centrally located conductive bar. A torsion spring reset structure is provided between the baffle and the support plate. The torsion spring reset structure and the baffle are used to control the opening and closing of the T-shaped cable support cavity.

[0005] Preferably, through holes are provided at the corner positions at the top of the inverted U-shaped busbar trough.

[0006] Preferably, both ends of the baffle surface are provided with hollowed-out portions.

[0007] Preferably, the torsion spring reset structure includes multiple bearing seats integrally formed on the top of the support plate, a support shaft fixed between the multiple bearing seats, and a torsion spring unit fitted onto one end of the surface of the support shaft, wherein the torsion spring unit is located in the hollow part.

[0008] Preferably, a groove is provided between the bearing seat and the support plate, and a through post is integrally formed on the upper surface of the baffle on one side of the hollow part. One end of the torsion spring unit extends into the groove, and the other end of the torsion spring unit extends into the through post.

[0009] Preferably, one end of the inverted U-shaped busbar trunking is provided with a T-shaped cutting groove that extends downward and penetrates to the outside of the inverted U-shaped busbar trunking, and the other end of the inverted U-shaped busbar trunking is provided with a T-shaped docking block for engaging with the T-shaped cutting groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This sliding busbar trunking with T-shaped conductive bar overcomes the complexity and safety hazards of traditional designs that require power disconnection and cable disconnection. It adopts an inverted U-shaped busbar trunking and is equipped with a structure that includes a central conductive bar, I-beams, an upper conductive recess, a lower conductive recess, and other mutually cooperating components. This allows operators to complete the installation of cables and busbar trunking without power interruption. The T-shaped cable support cavity can effectively accommodate cables, and after the cables are inserted, the baffle automatically resets through a reset torsion spring structure, ensuring stable cable contact with the conductive bar without interrupting the power supply. This design provides higher operational safety during power system operation, avoids electrical accidents caused by power outages, reduces the risk of electric shock, and ensures the safety of operators.

[0011] Furthermore, the centrally located conductive busbar and T-shaped cable support cavity design of the inverted U-shaped busbar trunking allow for cable installation or replacement during power system operation by avoiding power outage operations, greatly reducing downtime and ensuring continuous operation and stability of the system.

[0012] Furthermore, the inverted U-shaped busbar trunking is optimized in design. After the cable is placed into the T-shaped cable tray, the reset torsion spring automatically resets the baffle. This process is simple and efficient. Operators only need to place the cable in the cable tray without worrying about cable power failure or poor contact, thus avoiding the risk of cable falling off or poor contact. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a three-dimensional structural diagram of the support plate and baffle of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0019] In the diagram: 1. Inverted U-shaped busbar trough; 101. Central conductive busbar; 102. Through hole; 2. I-beam rib; 3. Upper conductive recess; 4. Lower conductive recess; 5. T-shaped cable support cavity; 6. Support shaft; 7. Support plate; 701. Shaft seat; 702. Groove; 8. Baffle; 801. Through column; 802. Hollowed-out part; 803. Torsion spring unit; 9. T-shaped cut-out groove; 10. T-shaped connecting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-6 This utility model provides an embodiment of a sliding busbar trunking with a T-shaped conductive bar, comprising an inverted U-shaped busbar trunking 1 and a central conductive bar 101 integrally formed at the top center of the inverted U-shaped busbar trunking 1. I-beam ribs 2 are integrally formed on both the left and right outer walls of the central conductive bar 101. An upper conductive recess 3 and a lower conductive recess 4 are integrally formed on the outer wall of the central conductive bar 101 on one side of the I-beam rib 2. T-shaped cable support cavities 5 for storing cables are provided between the top and bottom ends of the I-beam rib 2 and the upper conductive recess 3 and the lower conductive recess 4. Cables can be stored in the T-shaped cable support cavities 5 on both the left and right sides inside the inverted U-shaped busbar trunking 1, thereby increasing the cable capacity of the busbar trunking.

[0022] A support plate 7 is fixed on the outer wall of the I-shaped rib 2 and the lower conductive recess 4 on the side away from the central conductive busbar 101, and a baffle 8 is hinged on the outer wall of the support plate 7 on the side away from the central conductive busbar 101. A torsion spring reset structure is provided between the baffle 8 and the support plate 7. The torsion spring reset structure and the baffle 8 are used to control the opening and closing of the T-shaped wire support cavity 5.

[0023] Both ends of the surface of the baffle 8 are provided with hollowed-out portions 802. The torsion spring reset structure includes multiple bearing seats 701 integrally formed on the top of the support plate 7, a support shaft 6 fixed between the multiple bearing seats 701, and a torsion spring unit 803 fitted on one end of the surface of the support shaft 6. The torsion spring unit 803 is located at the hollowed-out portion 802.

[0024] A groove 702 is provided between the bearing seat 701 and the support plate 7. A through post 801 is integrally formed on the upper surface of the baffle 8 on one side of the hollow part 802. One end of the torsion spring unit 803 extends into the groove 702, and the other end of the torsion spring unit 803 extends into the through post 801. The operator first places the cable on the support platform integrally formed at the bottom of the inverted U-shaped busbar trough 1 and pushes the cable upward so that the cable passes through the baffle 8. At this time, the baffle 8 will deflect around the support shaft 6. Since the two ends of the torsion spring unit 803 are located in the through post 801 and the groove 702 respectively, the torsion spring unit 803 is deformed by force due to the deflection of the baffle 8. When the cable is sent into the T-shaped cable support cavity 5, the baffle 8 is not externally blocked, so the torsion spring unit 803 forces the baffle 8 to reset itself.

[0025] Example 2, based on Example 1, is... Figure 5 and Figure 6 As shown, through holes 102 are provided at the corner positions of the top of the inverted U-shaped busbar 1, and the through holes 102 at the corner positions of the upper surface of the inverted U-shaped busbar 1 can be connected to the plane to be installed by bolts.

[0026] One end of the inverted U-shaped busbar trough 1 is provided with a T-shaped cutting groove 9 that extends downward and penetrates to the outside of the inverted U-shaped busbar trough 1. The other end of the inverted U-shaped busbar trough 1 is provided with a T-shaped connecting block 10 for engaging with the T-shaped cutting groove 9. In order to allow the inverted U-shaped busbar trough 1 to be set according to the cable length, the beginning and end ends of two adjacent inverted U-shaped busbar troughs 1 are opened and closed through the T-shaped cutting groove 9 and the T-shaped connecting block 10 to achieve the purpose of the length of the inverted U-shaped busbar trough 1. Operators can adjust and expand it according to the cable length.

[0027] In this embodiment, when using the cable tray, first ensure that all tools and equipment are ready, including cables, insulating gloves, safety shoes, etc., and inspect the overall structure of the inverted U-shaped busbar 1 to ensure that components such as the central conductive busbar 101, I-beam rib 2, upper conductive recess 3, and lower conductive recess 4 are intact. Pay particular attention to the cleanliness and unobstructedness of the T-shaped cable support cavity 5 to ensure the cable can be smoothly inserted. Simultaneously check the cable insulation layer for damage or signs of aging to ensure personal safety during operation. Then, bolt and fix the inverted U-shaped busbar 1 to the mounting plane where the cable is located to secure it. Next, remove the cable from its storage location and check its length and specifications to ensure it meets the requirements of the busbar. After confirming the cable is ready, the operator gently lifts the cable and places it at the entrance of the T-shaped cable support cavity 5. At this point, it is necessary to... Manually push the baffle 8 upwards, forcing it to deflect around the support plate 7. This creates an opening in the T-shaped cable support cavity 5 for the cable to be inserted. To avoid damage to the cable during placement, the operator should operate gently and avoid excessive force. Once the cable is placed in the entrance of the T-shaped cable support cavity 5, the operator needs to gently push the cable to fully enter the cavity, ensuring the cable's flatness and stability within the cavity and good contact between the cable and the I-beam rib 2, upper conductive recess 3, or lower conductive recess 4 for subsequent electrical connection. After the cable is fully inserted into the T-shaped cable support cavity 5, the torsion spring reset structure automatically resets the baffle 8, ensuring the T-shaped cable support cavity 5 is closed. At this point, the T-shaped cable support cavity 5 forms a relatively enclosed space, preventing the cable from coming out. After the baffle 8 resets, the operator needs to check the connection between the cable and the central conductive busbar 101. Ensure good contact between the cable end and components such as the central conductive busbar 101 and the I-beam rib 2, without any looseness or poor contact.

Claims

1. A sliding busbar trunking system with T-shaped conductive bars, characterized in that: The system includes an inverted U-shaped busbar (1) and a centrally located conductive busbar (101) integrally formed at the top center of the inverted U-shaped busbar (1). I-beams (2) are integrally formed on both the left and right outer walls of the centrally located conductive busbar (101). An upper conductive recess (3) and a lower conductive recess (4) are integrally formed on the outer wall of the centrally located conductive busbar (101) on one side of the I-beam (2). The top and bottom ends of the I-beam (2) are connected to the upper conductive recess (3) and the lower conductive recess (4). 4) A T-shaped cable tray (5) is provided between the cable trays. A support plate (7) is fixed on the outer wall of the I-shaped rib (2) and the lower conductive recess (4) away from the central conductive busbar (101). A baffle (8) is hinged on the outer wall of the support plate (7) away from the central conductive busbar (101). A torsion spring reset structure is provided between the baffle (8) and the support plate (7). The torsion spring reset structure and the baffle (8) are used to control the opening and closing of the T-shaped cable tray (5).

2. The sliding busbar trunking with T-shaped conductive bars according to claim 1, characterized in that: Each of the inverted U-shaped busbar trunking (1) has a through hole (102) at the corner of its top.

3. A sliding busbar trunking with T-shaped conductive bars according to claim 1, characterized in that: Both ends of the surface of the baffle (8) are provided with hollow parts (802).

4. A sliding busbar trunking with T-shaped conductive bars according to claim 3, characterized in that: The torsion spring reset structure includes multiple bearing seats (701) integrally formed on the top of the support plate (7), a support shaft (6) fixed between the multiple bearing seats (701), and a torsion spring unit (803) fitted on one end of the surface of the support shaft (6). The torsion spring unit (803) is located at the hollow part (802).

5. A sliding busbar trunking with T-shaped conductive bars according to claim 4, characterized in that: A groove (702) is provided between the bearing seat (701) and the support plate (7). A through post (801) is integrally formed on the upper surface of the baffle (8) on one side of the hollow part (802). One end of the torsion spring unit (803) extends into the groove (702), and the other end of the torsion spring unit (803) extends into the through post (801).

6. A sliding busbar trunking with T-shaped conductive bars according to claim 1, characterized in that: One end of the inverted U-shaped busbar (1) is provided with a T-shaped cutting groove (9) that extends downward and penetrates to the outside of the inverted U-shaped busbar (1), and the other end of the inverted U-shaped busbar (1) is provided with a T-shaped docking block (10) for engaging with the T-shaped cutting groove (9).

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