Bus duct arrangement with protection against electric leakage
Patent Information
- Application Number
- CN202522527607.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-28
AI Technical Summary
[0003]目前母线槽连接多采用连接器,而连接器通过单个螺栓锁紧导电排,牢固性不足易致接触不良,而接触不良使接触点电阻骤增,通电时剧烈发热,高温易引发电弧,破坏接头处绝缘层,还会导致接地异常,继而使金属外壳带电,难以有效屏蔽漏电风险,给配电系统带来安全隐患,难以满足高安全标准的配电需求,因此为解决以上问题,我们提供了具备防漏电保护的母线槽装置
该具备防漏电保护的母线槽装置,通过两个母线槽主体的导电板对齐后套上导电连接套,并使螺纹孔与固定通孔对位,以及两个固定螺钉分别拧入并与螺纹固定槽配合,能够对导电板形成双重锁紧,相比传统单个螺栓固定,能够让导电板与导电连接套贴合更紧密,避免长期使用中因震动等导致的松动,并且后续母线槽主体的限位凸起插入支撑底板的限位孔,可以限制母线槽主体移位,确保连接稳定性,能够从根源降低接触不良引发的电阻骤增、发热及电弧问题,保障导电性能稳定,有效屏蔽漏电风险,并且该装置通过保护盖板紧密贴合母线槽主体与支撑底板,能够形成全封闭防护空间,隔绝外部环境对内部导电部件的影响,提高防护效果。
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Figure CN224909035U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of busbar technology, and more particularly to a busbar device with leakage protection. Background Technology
[0002] Busbar trunking is a closed metal conductor device that collects and distributes electrical energy. It consists of conductive bars, insulating materials, and a metal shell. It replaces traditional cables to achieve high current transmission and is widely used in power distribution scenarios such as buildings and industrial plants. It has advantages such as large current carrying capacity, flexible wiring, and convenient maintenance. It can adapt to complex power distribution needs and improve the reliability of power supply systems.
[0003] Currently, busbar trunking connections mostly use connectors. However, connectors tighten the conductive busbars with a single bolt, which is not secure enough and can easily lead to poor contact. Poor contact causes a sudden increase in contact resistance, resulting in intense heat generation when energized. High temperatures can easily cause electric arcs, damaging the insulation layer at the joint and leading to abnormal grounding. This can cause the metal casing to become electrified, making it difficult to effectively shield against leakage risks and posing safety hazards to the power distribution system. This makes it difficult to meet the high safety standards required for power distribution. Therefore, to solve the above problems, we provide a busbar trunking device with leakage protection. Utility Model Content
[0004] The purpose of this invention is to provide a busbar trunking device with leakage protection to solve the problems mentioned in the background art.
[0005] The embodiments of this application adopt the following technical solutions: A busbar trunking device with leakage protection includes two busbar trunking bodies, two protective cover plates between the two busbar trunking bodies, a support base plate below the two busbar trunking bodies, two support side plates fixedly connected to both sides of the support base plate, conductive plates fixedly connected to both ends of the two busbar trunking bodies, and a conductive connecting sleeve fitted on the outer surface of the two conductive plates. The inner wall of the conductive connecting sleeve has two threaded fixing grooves, and one side of the conductive connecting sleeve has a threaded hole. A fixing screw is threadedly connected to the inner wall of each of the two threaded holes. One side of each of the two conductive plates has a fixing through hole, and one end of the fixing screw extends into the interior of the fixing through hole, with the outer surface of the fixing screw matching the threaded inner wall of the threaded fixing groove.
[0006] Preferably, each of the two supporting side plates has a threaded opening on one side, and a locking screw is provided on one side of each of the two threaded openings. The protective cover plate has threaded fixing holes on both sides, and the outer surface of the locking screw is adapted to the inner thread of the threaded fixing hole.
[0007] Preferably, the protective cover has positioning recesses on both sides, and the outer surface of the top of the supporting side plate is adapted to the inner wall of the positioning recess.
[0008] Preferably, the bottom surface of each of the two busbar trunking bodies is provided with two limiting protrusions, and one side of the supporting base plate is provided with two sets of limiting holes. The bottom ends of the two sets of limiting protrusions extend into the interior of the two sets of limiting holes, and the outer surface of the limiting protrusions contacts the inner wall of the limiting holes.
[0009] Preferably, the inner wall of the protective cover plate is in contact with the two sides of the supporting base plate and the outer surface of the two busbar trunking bodies, and two sets of heat-conducting strips are fixedly embedded on the upper surface of each of the two busbar trunking bodies.
[0010] Preferably, a warning sign is fixedly connected to one side of each of the two busbar trunking bodies, and an insulating protective sleeve is wrapped around the outer surface of the conductive connection sleeve.
[0011] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects: This busbar trunking device with leakage protection works by aligning the conductive plates of two busbar trunking bodies, fitting a conductive connecting sleeve, aligning the threaded holes with the fixing through holes, and screwing in two fixing screws that engage with the threaded fixing grooves. This creates a double locking mechanism for the conductive plates, allowing for a tighter fit between the conductive plates and the conductive connecting sleeve compared to traditional single-bolt fixing. This prevents loosening due to vibration during long-term use. Furthermore, the limiting protrusions of the busbar trunking bodies insert into the limiting holes of the supporting base plate, restricting displacement of the busbar trunking bodies and ensuring connection stability. This reduces the risk of sudden increases in resistance, overheating, and arcing caused by poor contact, ensuring stable conductivity and effectively shielding against leakage risks. Additionally, the device's protective cover fits tightly against the busbar trunking bodies and the supporting base plate, forming a fully enclosed protective space that isolates the internal conductive components from the external environment, enhancing the protective effect. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 4 This is a side view of the three-dimensional structure of the present invention; Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.
[0013] In the diagram: 1. Busbar trunking body; 2. Protective cover plate; 3. Support base plate; 4. Support side plate; 5. Conductive connecting sleeve; 6. Conductive plate; 7. Fixing through hole; 8. Threaded opening; 9. Locking screw; 10. Threaded fixing groove; 11. Threaded hole; 12. Fixing screw; 13. Limiting hole; 14. Limiting protrusion; 15. Threaded fixing hole; 16. Warning sign; 17. Heat-conducting strip; 18. Positioning recess. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0015] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.
[0016] Please see Figure 1-5 This utility model provides a technical solution for a busbar trunking device with leakage protection: A busbar trunking device with leakage protection includes two busbar trunking bodies 1, two protective cover plates 2 between the two busbar trunking bodies 1, a support base plate 3 below the two busbar trunking bodies 1, two support side plates 4 fixedly connected to both sides of the support base plate 3, conductive plates 6 fixedly connected to both ends of the two busbar trunking bodies 1, conductive connecting sleeves 5 commonly fitted on the outer surfaces of the two conductive plates 6, two threaded fixing grooves 10 formed on the inner wall of the conductive connecting sleeve 5, threaded holes 11 formed on one side of the conductive connecting sleeve 5, and fixing screws 12 threadedly connected to the inner walls of the two threaded holes 11. The conductive plates 6 also have threaded holes 10 on one side of the conductive connecting sleeve 5. A fixing through hole 7 is provided, and one end of the fixing screw 12 extends into the interior of the fixing through hole 7. The outer surface of the fixing screw 12 is adapted to the inner thread of the threaded fixing groove 10. Specifically, the two conductive plates 6 are fitted together by the conductive connecting sleeve 5 to achieve docking. The conductive plates 6 can be firmly fixed by double locking through the threaded hole 11, the fixing screw 12 and the threaded fixing groove 10 to ensure stable current transmission. The fixing through hole 7 provides a passage for the fixing screw 12 to ensure stable locking. The supporting base plate 3 supports the weight of the busbar trunking body 1, and the supporting side plate 4 forms an installation support for the protective cover plate 2, improving the overall structural stability.
[0017] In this embodiment, each of the two supporting side plates 4 has a threaded opening 8 on one side, and a locking screw 9 is provided on one side of each of the two threaded openings 8. The protective cover plate 2 has threaded fixing holes 15 on both sides, and the outer surface of the locking screw 9 is adapted to the inner thread of the threaded fixing hole 15. The protective cover plate 2 has positioning recesses 18 on both sides, and the outer surface of the top of the supporting side plate 4 is adapted to the inner wall of the positioning recesses 18. The bottom surface of each of the two busbar trunking bodies 1 is provided with two limiting protrusions 14. The supporting base plate 3 has two sets of limiting holes 13 on one side, and the bottom ends of the two sets of limiting protrusions 14 are respectively... Extending into the interior of the two sets of limiting holes 13, and the outer surface of the limiting protrusion 14 contacts the inner wall of the limiting hole 13; specifically, the protective cover plate 2 and the supporting side plate 4 can be fixed by the threaded port 8 of the supporting side plate 4 and the locking screw 9. The threaded fixing hole 15 ensures reliable locking. The positioning recess 18 of the protective cover plate 2 is fitted with the top of the supporting side plate 4 to achieve quick alignment. In addition, the limiting protrusion 14 of the busbar trunking body 1 is inserted into the limiting hole 13 of the supporting base plate 3 to limit the horizontal displacement of the busbar trunking body 1, avoid the connection part from being misaligned under force, and ensure the connection stability of the conductive connecting sleeve 5 and the conductive plate 6.
[0018] In this embodiment, the inner wall of the protective cover plate 2 is in contact with the two sides of the supporting base plate 3 and the outer surfaces of the two busbar trunking bodies 1. Two sets of heat-conducting strips 17 are fixedly embedded on the upper surface of each of the two busbar trunking bodies 1. The heat-conducting strips 17 are made of aluminum alloy, which can quickly conduct the heat generated by the busbar trunking body 1 during operation, avoid high temperature damage to the insulation layer, and meet the heat dissipation and protection requirements of the device. Warning signs 16 are fixedly connected to one side of each of the two busbar trunking bodies 1. The outer surface of the conductive connecting sleeve 5 is wrapped with an insulating protective sleeve. Specifically, the protective cover plate 2 fits the busbar trunking body 1 and the supporting base plate 3 to form a closed space to isolate external dust and moisture and protect the internal conductive components. The heat-conducting strips 17 of the busbar trunking body 1 accelerate heat dissipation and prevent high temperature from affecting the insulation performance. The warning signs 16 clearly warn of safety and improve operational safety. The insulating protective sleeve outside the conductive connecting sleeve 5 directly isolates the conductive components and avoids the risk of leakage.
[0019] Working principle: During connection, align the conductive plates 6 at both ends of the two busbar trunking bodies 1, and put the conductive connecting sleeve 5 on the outer surface of the two conductive plates 6, so that the threaded hole 11 of the conductive connecting sleeve 5 is aligned with the fixing through hole 7 of the conductive plate 6. Then, screw the fixing screw 12 into the threaded hole 11, pass through the fixing through hole 7, and thread it into the threaded fixing groove 10 on the inner wall of the conductive connecting sleeve 5. The conductive plate 6 is double-locked by the two fixing screws 12, which replaces the traditional single bolt fixing and improves the connection firmness. Then, align the limiting protrusion 14 on the bottom surface of the busbar trunking body 1 with the limiting hole 13 of the support base plate 3 and insert it. Then, install the protective cover plate 2, so that the top of the support side plate 4 is embedded in the positioning recess 18 of the protective cover plate 2 to achieve alignment. Then, screw the locking screw 9 into the threaded port 8 of the support side plate 4 and lock it in place with the threaded fixing hole 15 of the protective cover plate 2. This allows the protective cover plate 2 to completely fit the busbar trunking body 1 and the support base plate 3, forming a closed protection and preventing leakage current conduction.
[0020] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A busbar trunking device with leakage protection, comprising two busbar trunking bodies (1), characterized in that: Two protective cover plates (2) are provided between the two busbar trunking bodies (1). A support base plate (3) is provided below the two busbar trunking bodies (1). Two support side plates (4) are fixedly connected to both sides of the support base plate (3). Conductive plates (6) are fixedly connected to both ends of the two busbar trunking bodies (1). Conductive connecting sleeves (5) are fitted together on the outer surfaces of the two conductive plates (6). Two threaded fixing grooves (10) are opened on the inner wall of the conductive connecting sleeve (5). Threaded holes (11) are opened on one side of the conductive connecting sleeve (5). Fixing screws (12) are threadedly connected to the inner walls of the two threaded holes (11). Fixing through holes (7) are opened on one side of the two conductive plates (6). One end of the fixing screw (12) extends into the interior of the fixing through hole (7), and the outer surface of the fixing screw (12) is threaded to the inner wall of the threaded fixing groove (10).
2. The busbar trunking device with leakage protection according to claim 1, characterized in that: One side of each of the two support side plates (4) is provided with a threaded opening (8), and one side of each of the two threaded openings (8) is provided with a locking screw (9). Both sides of the protective cover plate (2) are provided with threaded fixing holes (15), and the outer surface of the locking screw (9) is adapted to the inner wall thread of the threaded fixing hole (15).
3. The busbar trunking device with leakage protection according to claim 1, characterized in that: The protective cover (2) has positioning recesses (18) on both sides, and the outer surface of the top of the supporting side plate (4) is adapted to the inner wall of the positioning recesses (18).
4. The busbar trunking device with leakage protection according to claim 1, characterized in that: Two limiting protrusions (14) are provided on the bottom surface of the two busbar trunking bodies (1). Two sets of limiting holes (13) are provided on one side of the supporting base plate (3). The bottom ends of the two sets of limiting protrusions (14) extend into the interior of the two sets of limiting holes (13), and the outer surface of the limiting protrusions (14) contacts the inner wall of the limiting holes (13).
5. The busbar trunking device with leakage protection according to claim 1, characterized in that: The inner wall of the protective cover (2) is in contact with the two sides of the supporting base plate (3) and the outer surface of the two busbar trunk bodies (1). Two sets of heat-conducting strips (17) are fixedly embedded on the upper surface of the two busbar trunk bodies (1).
6. The busbar trunking device with leakage protection according to claim 1, characterized in that: Warning signs (16) are fixedly connected to one side of each of the two busbar trunking bodies (1), and the outer surface of the conductive connecting sleeve (5) is covered with an insulating protective sleeve.