Bus duct connector structure

By using DuPont insulating paper and bolt fixing structure in the bus trunking connector, the short circuit problem caused by loosening of the bus trunking connector is solved, achieving efficient current transmission and improved insulation performance, thus ensuring the stable operation of the power system.

CN224153932UActive Publication Date: 2026-04-21FUMI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUMI ELECTRIC CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Busbar connectors are prone to short circuits due to loose connections after a period of operation. Existing insulation materials have poor thermal conductivity, which leads to heat accumulation, increases resistance, and forms a cycle.

Method used

DuPont insulating paper is used as the insulating material for the connection parts, and the copper busbars are fixed with bolts to ensure that the connector copper busbars and the connecting copper busbars overlap on one side. Combined with structural designs such as blocking blocks, inclined ramps, and connecting aluminum plates, the electrical insulation performance and mechanical strength are improved.

Benefits of technology

It improves current transmission capacity, reduces heat buildup, enhances insulation performance and mechanical strength, reduces the risk of electrical faults caused by loosening, and ensures the stability and safety of power transmission.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of bus duct connectors, and particularly relates to a bus duct connector structure, which comprises two opposite side plates, multiple layers of connecting copper bar groups are arranged between the two side plates, bus ducts are connected to two sides of the connecting copper bar groups, each connecting copper bar group is composed of two connecting copper bars arranged side by side, and the connecting copper bars are arranged in parallel. Bus copper bars are inserted into the two sides of each connecting copper bar, Dupont insulation paper is arranged on the upper face and the lower face, inserted with the bus copper bars, of each layer of connecting copper bar set, and the side plates, the connecting copper bar sets, the Dupont insulation paper and the bus copper bars sequentially penetrate through first bolts to be fixed to nuts in a threaded mode; the connecting copper bar has the advantages that the electric insulation performance, the heat resistance and the mechanical strength are excellent, the connecting copper bar is simple and reliable, the connection among the components can be ensured, and the electric fault risk caused by looseness is reduced.
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Description

Technical Field

[0001] This utility model belongs to the technical field of busbar trunking connectors, specifically relating to a busbar trunking connector structure. Background Technology

[0002] With the development of technology and the increasing demand for electricity, busbar trunking, as the main power transmission line in construction projects, has become a growing trend, replacing existing cables. Therefore, busbar trunking, as the main power transmission line, is crucial in construction projects, and short circuits in it have a wide impact, seriously affecting production and daily life. The most common short circuits in busbar trunking occur at the connectors. Most often, after the busbar trunking has been in operation for a period of time, the bolts at the connectors loosen, causing the connectors to overheat and leading to a short circuit, resulting in a power outage on the entire main power transmission line. Moreover, most short circuits occur after a period of operation. The main reason for this is the loosening of the connectors connecting the busbar trunking. The original connectors used unsaturated polyester fiber as insulation material, with a copper busbar on each side. Single-phase connections used double overlap, and there was a hole in the middle of the connecting copper busbar through which the bolt passed. Therefore, once the insulation was damaged, a short circuit was easily caused. The low thermal conductivity of unsaturated polyester fiber makes it difficult for heat from the middle two phases to be conducted to the outer shell, causing heat accumulation. The higher the temperature of the copper busbar, the greater the resistance, creating a cycle. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a busbar connector structure that uses DuPont insulating paper for insulation of the connection parts. The connector copper busbars are plugged into each other, allowing for single-sided overlap between the connector copper busbars and the connecting copper busbars, thereby solving the problem that short circuits can easily occur once the insulation is damaged.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a busbar trunking connector structure, including two oppositely arranged side plates, with multiple layers of connecting copper busbars arranged between the two side plates, and busbar trunking connected to both sides of the connecting copper busbars. Each connecting copper busbar group consists of two parallel connecting copper busbars, with busbars inserted into both sides of each connecting copper busbar. DuPont insulating paper is provided on the upper and lower surfaces of each layer of connecting copper busbar group and the busbars. The side plates, connecting copper busbar groups, DuPont insulating paper, and busbars are sequentially passed through by a first bolt and threaded with a nut. A gap groove is provided at the interval between the two parallel connecting copper busbars for the first bolt to pass through.

[0005] Preferably, each of the two parallel busbar troughs is provided with a plug-in slot for plugging in the copper busbar, and clearance slots are provided on both sides of the busbar trough, with the width of the two clearance slots being equal to the width of the spacing slot.

[0006] Preferably, a blocking block is provided in the middle of the connecting copper busbar, and inclined slopes are provided on both sides of the connecting copper busbar.

[0007] Preferably, the upper and lower surfaces of the middle section of the busbar copper bus are provided with connecting aluminum plates, and the two connecting aluminum plates are provided with protrusions facing each other in the middle.

[0008] Preferably, a connector guard plate is provided on the outside of the busbar copper busbar, and a waterproof strip is provided between the connector guard plate and the side plate.

[0009] Preferably, the connector guard plate has a second bolt hole, and a second bolt is threaded into the second bolt hole and inserted into the clearance groove.

[0010] Preferably, two positioning grooves are arranged side by side on the outer side of the side plate, and a first bolt hole is opened in the positioning groove.

[0011] Preferably, a spring steel sheet is provided inside the positioning groove, and the first bolt passes through the spring steel sheet, the first bolt hole and is threaded and fixed by the nut in sequence.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: DuPont insulating paper is used for insulation of the connection parts, and the connector copper busbar is plugged into the connecting copper busbar, so that the connector copper busbar is overlapped on one side. There is no need to punch holes in the middle of the connector copper busbar, and the current transmission is smoother. It has excellent electrical insulation performance, heat resistance and mechanical strength. It is simple and reliable, and can ensure a tight connection between the components, reducing the risk of electrical failure caused by loosening.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a busbar trunking connector.

[0015] Figure 2 This is a side view of a busbar connector structure.

[0016] Figure 3 This is an exploded three-dimensional view of a busbar connector structure.

[0017] In the diagram: 1. Side plate; 11. Positioning groove; 12. First bolt hole; 13. Spring steel sheet; 2. Connecting copper busbar assembly; 21. Connecting copper busbar; 211. Blocking block; 212. Inclined slope; 3. Busbar trunking; 31. Plug-in groove; 32. Clearance groove; 4. Busbar copper busbar; 41. Connector guard plate; 411. Second bolt hole; 412. Second bolt; 5. DuPont insulating paper; 6. First bolt; 7. Nut; 8. Spacer groove; 9. Connecting aluminum plate; 91. Protrusion. Detailed Implementation

[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0019] Combination Figure 1 , Figure 2 and Figure 3 As shown, a busbar trunking connector structure includes two opposing side plates 1, with multiple layers of connecting copper busbar groups 2 between the two side plates 1. Busbar trunking 3 is connected to both sides of the connecting copper busbar groups 2. Each connecting copper busbar group 2 consists of two parallel connecting copper busbars 21. Busbar copper busbars 4 are inserted into both sides of each connecting copper busbar 21. DuPont insulating paper 5 is provided on the upper and lower surfaces where each layer of connecting copper busbar group 2 and busbar copper busbar 4 is inserted. The side plates 1, connecting copper busbar groups 2, DuPont insulating paper 5 and busbar copper busbar 4 are sequentially passed through by first bolts 6 and threadedly fixed with nuts 7. Spacing grooves 8 are provided at the intervals between the two parallel connecting copper busbars 21 for the first bolts 6 to pass through.

[0020] This utility model proposes a busbar trunking connector structure that significantly improves insulation performance and ease of installation while ensuring electrical connection stability.

[0021] The busbar connector structure is mainly supported by two opposing side plates 1, providing a stable mounting base for the entire connector. Between the two side plates 1, there are multiple layers of connecting copper busbars 2. These connecting copper busbars 2 act as bridges for power transmission, undertaking the crucial task of stably transmitting electrical energy from one side of the busbar 3 to the other side of the busbar 3.

[0022] Each connecting copper busbar group 2 is composed of two connecting copper busbars 21 arranged side by side, which effectively increases the current carrying area and significantly improves the current transmission capability of the connector, meeting the needs of high-power power transmission. At the same time, the side-by-side structure also helps to disperse the heat generated by the current, reduce local temperature rise, and improve the thermal stability of the connector.

[0023] Each connecting copper busbar 21 has a busbar copper busbar 4 inserted on both sides. The busbar copper busbar 4 serves as the electrical connection link between the busbar trunking 3 and the connecting copper busbar 21, ensuring stable electrical contact during long-term operation, reducing contact resistance, and lowering energy loss.

[0024] To ensure electrical safety and prevent short circuits or leakage within the connector, DuPont insulating paper 5 is installed on both the top and bottom surfaces of each layer of copper busbar assembly 2 and busbar copper busbar 4 where they are plugged in. DuPont insulating paper 5 is a high-performance insulating material with excellent electrical insulation, heat resistance, and mechanical strength. It effectively isolates conductors at different potentials, preventing current from flowing along unintended paths, while also withstanding certain mechanical pressure and temperature changes, ensuring the connector operates safely and reliably in various harsh environments.

[0025] Side plate 1, as the external support structure of the connector, not only provides protection for the internal components, but also secures the entire connector structure through its cooperation with the first bolt 6 and nut 7. The first bolt 6 passes sequentially through side plate 1, connecting copper busbar assembly 2, DuPont insulation paper 5, and busbar copper busbar 4, and is then threaded onto nut 7. This simple and reliable method ensures a tight connection between components and reduces the risk of electrical faults caused by loosening.

[0026] Two parallel connecting copper busbars 21 are spaced with a slot 8 for the first bolt 6 to pass through. This not only solves the space problem during the installation of the first bolt 6, allowing the bolt to pass smoothly through the connecting copper busbar assembly 2 for fixing, but also avoids the potential impact on the conductivity and mechanical strength of the copper busbars caused by directly drilling holes in the connecting copper busbars 21. The width and depth of the slot 8 are precisely calculated to ensure that the bolt installation requirements are met without affecting the electrical isolation and heat dissipation performance between the connecting copper busbars 21.

[0027] This busbar connector structure, through reasonable design and high-quality component selection, achieves advantages in many aspects such as stable electrical connection, reliable insulation performance, and convenient installation and maintenance, providing an efficient and safe connection solution for power transmission and distribution systems.

[0028] Combination Figure 1 , Figure 2 and Figure 3 As shown, each of the two parallel busbar troughs 3 is equipped with a insertion slot 31 for connecting the busbar copper busbar 4. The insertion slot 31 acts as a precise "positioning track," providing a reliable and stable installation environment for the connection between the busbar copper busbar 4 and the busbar trough 3. The depth and width of the insertion slot 31 match the dimensions of the busbar copper busbar 4, ensuring that the busbar copper busbar 4 can be easily and accurately inserted. This not only guarantees the reliability of the electrical connection and reduces problems such as increased resistance and overheating caused by poor contact, but also effectively prevents the busbar copper busbar 4 from shaking or shifting within the busbar trough 3, avoiding loosening of the connection due to mechanical vibration or external forces.

[0029] The busbar trunking 3 has clearance grooves 32 on both sides, the width of which is equal to the width of the spacer groove 8. When the busbar trunking 3 is assembled with the busbar trunking connector, the clearance grooves 32 and the spacer groove 8 can be aligned to form a continuous channel. The first bolt 6 can smoothly pass through this channel, sequentially through the side plate 1, the connecting copper busbar assembly 2, the DuPont insulation paper 5, and the busbar copper busbar 4, and finally be threaded and fixed with the nut 7. This ensures smooth bolt installation and avoids installation difficulties or unstable connections caused by insufficient space or structural interference.

[0030] From an electrical safety perspective, the cooperation between the clearance slot 32 and the spacer slot 8 provides additional protection for electrical insulation. Because the bolts pass through these slots, the space around the slots forms a certain electrical isolation zone. DuPont insulating paper 5 can better cover and wrap the relevant components, further enhancing the insulation performance between conductors at different potentials, reducing the risk of short circuits or leakage that may be introduced by bolt installation, and ensuring the safe and reliable operation of the entire power transmission system.

[0031] Combination Figure 1 , Figure 2 and Figure 3 As shown, a blocking block 211 is provided in the middle of the connecting copper busbar 21, and inclined slopes 212 are provided on both sides of the connecting copper busbar 21.

[0032] Specifically, in the production and installation of busbar connectors, the presence of the blocking block 211 provides a clear reference for the installation position of the connecting copper busbar 21 within the connector. During connector assembly, operators simply place the connecting copper busbar 21 in the appropriate position, and through the contact between the blocking block 211 and other internal structures of the connector (such as the positioning groove on the side plate 1 or the mating surfaces of adjacent components), the installation orientation of the connecting copper busbar 21 can be quickly and accurately determined, effectively avoiding problems such as poor electrical connection and increased contact resistance caused by installation position deviations.

[0033] The presence of the blocking block 211 alters the airflow path inside the connecting copper busbar 21. When air flows inside the connector, the blocking block 211 guides the airflow more evenly across the surface of the connecting copper busbar 21, increasing the convective heat transfer area between the air and the connecting copper busbar 21 and improving heat dissipation efficiency. The blocking block 211 itself also has a certain thermal conductivity, enabling it to quickly conduct heat from a localized area of ​​the connecting copper busbar 21 to the surrounding environment or other heat dissipation components, further promoting heat dissipation, effectively reducing the operating temperature of the connecting copper busbar 21, and ensuring the stable operation of the power transmission system.

[0034] When the busbar copper bus 4 is inserted into the connecting copper bus 21, the inclined surface structure of the sloped ramp 212 provides a gradually guiding force for the busbar copper bus 4. Even if there is a slight angular deviation or positional shift in the busbar copper bus 4 during insertion, the sloped ramp 212 can guide the busbar copper bus 4 to the correct insertion position through its inclined surface. This greatly reduces the installation personnel's requirements for insertion accuracy, reduces the time spent on repeated attempts and adjustments due to insertion difficulties, and significantly improves installation efficiency. At the same time, the smooth surface of the sloped ramp 212 can also reduce the friction when the busbar copper bus 4 is inserted, making the insertion process smoother and avoiding damage to the surfaces of the busbar copper bus 4 and the connecting copper bus 21 due to excessive friction.

[0035] Combination Figure 2 and Figure 3 As shown, the upper and lower surfaces of the middle section of the busbar copper busbar 4 are provided with connecting aluminum plates 9, and the two connecting aluminum plates 9 are provided with protruding blocks 91 facing each other in the middle.

[0036] Specifically, the connecting aluminum plate 9 is attached to the upper and lower surfaces of the busbar copper bus 4, providing additional structural support through its rigidity and strength. When the busbar copper bus 4 is subjected to external forces, the connecting aluminum plate 9 can disperse and bear some of the stress, reducing stress concentration in local areas of the busbar copper bus 4, thereby effectively reducing the risk of bending deformation. This structural reinforcement ensures that the busbar copper bus 4 maintains a straight and stable geometric shape during long-term operation, providing a reliable mechanical foundation for electrical connections and ensuring the stability of power transmission.

[0037] Aluminum has excellent thermal conductivity. When the connecting aluminum plate 9 contacts the busbar copper bus 4, it can quickly conduct the heat generated by the busbar copper bus 4 to itself. Simultaneously, the large surface area of ​​the connecting aluminum plate 9 increases the contact area with the surrounding environment, which is beneficial for heat dissipation. In actual operation, air can flow more freely across the surface of the connecting aluminum plate 9, carrying away heat through convection heat transfer. Furthermore, in some large power equipment, forced air cooling or water cooling methods may be used; the presence of the connecting aluminum plate 9 can better cooperate with these cooling systems, improving heat dissipation efficiency. By optimizing heat dissipation performance, the connecting aluminum plate 9 effectively reduces the operating temperature of the busbar copper bus 4, ensuring the safe and stable operation of the power transmission system and extending the service life of the equipment.

[0038] When assembling the busbar copper busbar 4 with the connecting aluminum plate 9, the operator only needs to place the busbar copper busbar 4 between the connecting aluminum plates 9. The protrusion 91 engages with the corresponding positioning structure on the busbar copper busbar 4 to quickly and accurately determine its installation position. This avoids problems such as poor electrical connection and increased contact resistance caused by installation position deviations, greatly improving the accuracy and efficiency of installation. Simultaneously, the presence of the protrusion 91 facilitates subsequent fixing operations, ensuring a firm connection between the busbar copper busbar 4 and the connecting aluminum plate 9, forming a stable overall structure.

[0039] Combination Figure 2 and Figure 3 As shown, a connector guard plate 41 is provided on the outside of the busbar copper busbar 4, and a waterproof strip 42 is provided between the connector guard plate 41 and the side plate 1.

[0040] Specifically, the connector guard plate 41 has good impact resistance and mechanical strength, capable of withstanding a certain degree of external impact without deformation or damage. When an external object collides with the busbar copper bus 4, the connector guard plate 41 will initially absorb the impact force, dispersing and absorbing the impact energy through its own deformation or elastic buffering, thereby protecting the busbar copper bus 4 from direct damage. For example, in industrial plants, there may be situations where large equipment moves or materials are handled; the connector guard plate 41 can effectively prevent accidental collisions to the busbar copper bus 4 caused by these activities, ensuring the continuity of power transmission.

[0041] In humid environments, moisture can easily penetrate the busbar copper busbar 4 and its connections, leading to electrical faults such as decreased insulation performance and short circuits. The waterproof strip 42 installed between the connector guard plate 41 and the side plate 1 can effectively prevent moisture intrusion.

[0042] The waterproof sealing strip 42 possesses excellent water resistance, weather resistance, and aging resistance, maintaining a good sealing effect during long-term use. When the connector guard plate 41 is installed together with the side plate 1, the waterproof sealing strip 42 is compressed and deformed, filling the gap between them to form a continuous waterproof barrier. Even if rainwater or moisture is present in the external environment, the waterproof sealing strip 42 can effectively prevent them from entering the area where the busbar copper busbar 4 is located, ensuring the safety and reliability of the electrical connection.

[0043] Combination Figure 2 and Figure 3 As shown, a second bolt hole 411 is provided on the connector guard plate 41, and a second bolt 412 is threaded into the second bolt hole 411 and inserted into the relief groove 32.

[0044] Specifically, the layout of the second bolt hole 411 fully considers the assembly relationship between the connector guard plate 41 and surrounding components such as the busbar copper busbar 4 and the side plate 1. When the operator places the connector guard plate 41 in the designated position, the second bolt hole 411 can be precisely aligned with the corresponding mounting hole on the side plate 1. This greatly simplifies the installation process. The operator does not need to perform complex adjustments and calibrations; they only need to pass the second bolt 412 through the second bolt hole 411 and the mounting hole on the side plate 1 in sequence to quickly and accurately complete the initial positioning and fixing of the connector guard plate 41. This not only improves installation efficiency but also reduces rework and maintenance costs caused by installation errors, ensuring the quality controllability of the busbar copper busbar 4 system during the assembly process.

[0045] The recess 32 provides additional installation space for the second bolt 412, ensuring that it secures the connector guard plate 41 to the side plate 1 without obstructing other surrounding components. For example, in some compact busbar trunking systems, cables, sensors, and other equipment may need to be installed close to the busbar copper busbar 4. Without the recess 32, the second bolt 412 might protrude from the surface of the connector guard plate 41, interfering with these devices and causing installation difficulties or affecting their normal operation. By inserting the second bolt 412 into the recess 32, its space occupation is effectively reduced, making the layout of the entire busbar copper busbar 4 system more compact and rational, and improving space utilization.

[0046] Combination Figure 1 , Figure 2 and Figure 3 As shown, two positioning grooves 11 are arranged side by side on the outer side of the side plate 1, and a first bolt hole 12 is opened in the positioning groove 11.

[0047] Specifically, when operators perform installation, they only need to align the positioning protrusions of the relevant components with the positioning slots 11 and gently push them in to achieve quick and accurate positioning. This avoids errors caused by manual measurement and adjustment that may occur during traditional installation, greatly improving installation efficiency and accuracy.

[0048] During installation, the sidewall of the positioning groove 11 guides the installation components to move along a predetermined trajectory, making the installation process smoother and more stable. Operators do not need to spend a lot of time and effort adjusting the position and orientation of the components; they only need to operate in the direction of the positioning groove 11.

[0049] Once the positioning protrusion on the connector guard plate 41 enters the positioning groove 11, the sidewall of the positioning groove 11 restricts the horizontal and vertical offset of the connector guard plate 41, allowing it to move only along the length of the positioning groove 11. This guided installation method reduces the difficulty of installation and is especially suitable for installation in environments with limited space and inconvenient operation. At the same time, it also reduces the risk of component damage due to improper installation, improving the safety and reliability of the installation.

[0050] The first bolt hole 12 can perfectly match the matching bolt, ensuring the strength and reliability of the connection. The threaded connection between the bolt and the first bolt hole 12 has good self-locking performance, which can effectively prevent the bolt from loosening due to vibration during equipment operation. At the same time, by reasonably selecting the bolt specifications and tightening torque, the strength of the connection can be further enhanced, so that the component and the side plate 1 form a stable integral structure.

[0051] Combination Figure 1 , Figure 2 and Figure 3 As shown, a spring steel sheet 13 is provided inside the positioning groove 11, and the first bolt 6 passes through the spring steel sheet 13 and the first bolt hole 12 in sequence and is threaded to the nut 7.

[0052] Specifically, the spring steel sheet 13 possesses good elasticity and toughness, and can undergo elastic deformation to a certain extent when the first bolt 6 passes through it. When faced with a situation where the dimensions of the positioning groove 11 and the mating component are not perfectly matched due to manufacturing errors, the spring steel sheet 13 can fill the gap through its own elastic deformation, ensuring a tight contact between the component and the positioning groove 11. For example, if the width of the positioning groove 11 is slightly larger than the width of the positioning protrusion of the mating component due to manufacturing tolerances, the spring steel sheet 13 will expand to both sides under the pressure of the bolt, filling the excess space and ensuring that the component can be stably fixed within the positioning groove 11. Similarly, during installation, if the component's position deviates slightly due to improper installation angle or force, the spring steel sheet 13 can also adjust itself elastically to automatically adjust the component to the appropriate position within the positioning groove 11, improving installation accuracy and reliability.

[0053] As an effective buffer and protective element, the spring steel sheet 13 can absorb and disperse vibration and impact energy. When the system is subjected to vibration or impact, the spring steel sheet 13 will undergo elastic deformation, converting some of the energy into its own elastic potential energy, thereby reducing the impact force transmitted to the bolts and components. This buffering effect is similar to the shock absorber in a car, effectively protecting the various components of the busbar copper busbar 4 system from damage caused by vibration and impact.

[0054] The threaded connection between the first bolt 6 and the nut 7 is an important way to fasten components in the busbar copper busbar 4 system. The first bolt 6 passes through the spring steel plate 13 and the first bolt hole 12 in sequence, and after being threaded and fixed with the nut 7, it forms a reliable mechanical connection structure.

[0055] During the tightening of nut 7, the first bolt 6 applies pressure to the spring steel sheet 13, causing it to elastically deform, thereby connecting the side plate 1 to the mating component. This connection exhibits high strength and reliability, capable of withstanding significant tensile and shear forces. During the operation of the busbar copper busbar 4 system, current flows through it, generating electromagnetic force. Simultaneously, the system itself is also affected by gravity and external forces. The reliable tightening of the first bolt 6 and nut 7 ensures that each component maintains a stable position under various forces, preventing displacement or detachment, thus guaranteeing the safety of the electrical connection and the stability of the mechanical structure.

[0056] This invention represents a preferred embodiment of the present invention, but its scope of protection is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, shall be covered within the scope of protection of this invention.

Claims

1. A bus duct connector structure, comprising two oppositely arranged side plates (1), a plurality of connecting copper bar groups (2) are arranged between the two side plates (1), and bus ducts (3) are connected on both sides of the connecting copper bar groups (2), characterized in that, Each connecting copper busbar group (2) consists of two connecting copper busbars (21) arranged side by side. Busbars (4) are inserted into both sides of each connecting copper busbar (21). DuPont insulating paper (5) is provided on the upper and lower surfaces where each layer of connecting copper busbar group (2) and busbar (4) are inserted. The side plate (1), connecting copper busbar group (2), DuPont insulating paper (5) and busbar (4) are sequentially threaded through by the first bolt (6) and fixed with the nut (7). A spacer groove (8) is provided at the interval between the two parallel connecting copper busbars (21) for the first bolt (6) to pass through.

2. The busway connector structure of claim 1, wherein, Two parallel busbar troughs (3) are each provided with a plug-in slot (31) for plugging in the busbar copper busbar (4). A clearance slot (32) is provided on both sides of the busbar trough (3). The width of the two clearance slots (32) is equal to the width of the spacing slot (8).

3. The busway connector structure of claim 1 or 2, wherein, A blocking block (211) is provided in the middle of the connecting copper busbar (21), and inclined slopes (212) are provided on both sides of the connecting copper busbar (21).

4. The busway connector structure of claim 3, wherein, The upper and lower sides of the middle section of the busbar copper bus (4) are provided with connecting aluminum plates (9), and the two connecting aluminum plates (9) are provided with protrusions (91) facing each other in the middle.

5. The busbar connector structure according to claim 4, characterized in that, A connector guard plate (41) is provided on the outside of the busbar copper bus (4), and a waterproof strip (42) is provided between the connector guard plate (41) and the side plate (1).

6. The busway connector structure of claim 5, wherein, The connector guard plate (41) has a second bolt hole (411), and a second bolt (412) is threaded into the second bolt hole (411) and inserted into the relief groove (32).

7. The busway connector structure of claim 6, wherein, Two positioning grooves (11) are arranged side by side on the outer side of the side plate (1), and a first bolt hole (12) is opened in the positioning groove (11).

8. The busway connector structure of claim 7, wherein, The positioning groove (11) is provided with a spring steel sheet (13), and the first bolt (6) passes through the spring steel sheet (13) and the first bolt hole (12) in sequence and is threaded to the nut (7).