Copper bar assembly with high stability
By employing an adjustable copper busbar design and multiple protection measures, the adaptability of copper busbar components in diverse installation environments has been addressed, enabling flexible installation and stable connection, while improving safety and service life.
Patent Information
- Application Number
- CN202520202905.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing copper busbar assemblies are designed as a single unit, which makes it difficult to adapt to diverse installation environments and distance requirements, resulting in complex and inconvenient installation.
The adjustable copper busbar design connects two copper busbars via a wiring assembly. It is equipped with protective insulating cloth and elastic plastic insulating cloth, combined with a fastening rod and fixing nut structure, which allows for flexible bending and stable fixation of the copper busbars.
It improves ease of installation and applicability, enhances safety and reliability, extends service life, simplifies the installation process, and reduces costs.
Smart Images

Figure CN223898614U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, and in particular to a copper busbar assembly with high stability. Background Technology
[0002] Three-phase copper busbar assemblies are conductive connection devices used in three-phase power systems. They are typically made of highly conductive copper and their main function is to transmit and distribute three-phase electrical energy, playing a crucial role in connection and conduction within the power system. Copper busbar assemblies are usually made of pure copper or tin-plated copper to ensure good conductivity and corrosion resistance. Their cross-sectional shape can be rectangular, trapezoidal, or other optimized designs to adapt to different current loads and installation environments. In three-phase power systems, copper busbar assemblies are used to connect the three-phase circuits between generators, transformers, distribution cabinets, motors, and other equipment, and are widely used in power plants, substations, industrial plants, and commercial buildings. Copper busbar assemblies possess high conductivity, good mechanical strength and thermal stability, and excellent corrosion resistance. Using copper busbars can reduce resistance losses in the circuit, improve energy efficiency, and simultaneously, their large current carrying capacity allows them to withstand high current loads, ensuring the safety and reliability of power transmission.
[0003] Existing copper busbar assemblies typically employ a one-piece structure, meaning the connection points at both ends are fixed, lacking flexibility. In practical applications, if the installation space inside a distribution box or other electrical equipment has specific distance requirements or layout constraints, this fixed design of copper busbar assemblies proves inadequate, failing to adapt to diverse installation environments and distance needs. Therefore, this one-piece copper busbar assembly has significant limitations in practical use, often leading to complex installation processes that are difficult to adjust, causing considerable inconvenience to users.
[0004] Therefore, those skilled in the art have provided a copper busbar assembly with high stability to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly stable copper busbar assembly that is adjustable and more flexible.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A highly stable copper busbar assembly includes two copper busbars, each of which has a wire connector fixedly installed at one end opposite to the other. A wiring assembly is wound around the two wire connectors, and a protective insulating cloth is wound around the two wire connectors. A protective outer shell is fixedly installed on the middle of the outer surface of each of the two copper busbars, and an elastic plastic insulating cloth is fixedly installed between the two protective outer shells.
[0008] Both of the protective shells have threaded heads fixedly installed on the front side near the elastic plastic insulating cloth. Each of the two threaded heads has a fastening rod movably fitted inside it, and a fixing nut is threadedly fitted on the threaded head located in front of the fastening rod.
[0009] Furthermore, each of the two copper busbars is fixedly provided with a bent joint at opposite ends, with one bent at the front end and the other bent at the rear end.
[0010] Furthermore, both of the elbow joints have mounting holes on their surfaces.
[0011] Furthermore, the two fastening rods are hinged together, and the wiring assembly is wrapped inside a protective insulating cloth.
[0012] Furthermore, the protective shell is made of polyetheretherketone (PEEK) material.
[0013] Furthermore, the fixing nut, fastening rod, and threaded head are all made of polyimide material.
[0014] Furthermore, both the copper busbar and the wiring assembly are made of copper.
[0015] This utility model has the following beneficial effects:
[0016] This utility model proposes a highly stable copper busbar assembly. The assembly employs a unique design where two copper busbars are connected by a wiring harness, allowing them to bend vertically and horizontally to a certain extent. This design overcomes the limitations of traditional fixed-connection integrated copper busbar assemblies, better adapting to distance requirements and layout constraints in different equipment and installation environments, greatly improving installation convenience and applicability. Protective insulating cloth is installed outside the wiring harness between the two copper busbars, and elastic plastic insulating cloth is fixed between the protective shells. These protective measures not only prevent damage to the copper busbars and wiring harness during bending but also effectively prevent short circuits and electric shock accidents, enhancing overall safety and reliability.
[0017] This invention presents a highly stable copper busbar assembly. By rotating the fixing nut to secure the fastening rod, a limiting effect is achieved after the copper busbar is bent, preventing loosening and deformation due to external forces during use. This ensures the stability and long-term safety of the copper busbar assembly. Both the copper busbar and the wiring assembly are made of highly conductive copper, ensuring excellent conductivity. The protective shell is made of polyetheretherketone (PEEK), while the fixing nut, fastening rod, and threaded head are made of polyimide. These materials not only possess excellent mechanical strength and thermal stability but also good corrosion resistance, extending the service life of the copper busbar assembly. The overall design of this copper busbar assembly is compact, and fastening and limiting can be achieved simply by rotating the fixing nut, simplifying the installation process, reducing installation time and costs, and improving maintenance convenience. Attached Figure Description
[0018] Figure 1 This is a frontal axonometric schematic diagram of the present invention;
[0019] Figure 2 This is a frontal axonometric view of the copper busbar of this utility model;
[0020] Figure 3 This is an isometric schematic diagram of the wiring assembly of this utility model;
[0021] Figure 4 This is a schematic diagram of the isometric projection of the fastening rod of this utility model.
[0022] Legend:
[0023] 1. Protective outer shell; 2. Elastic plastic insulating cloth; 3. Fixing nut; 4. Fastening rod; 5. Bend joint; 6. Wire connector; 7. Wiring assembly; 8. Protective insulating cloth; 9. Copper busbar; 10. Threaded head. Detailed Implementation
[0024] 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.
[0025] Reference Figures 1-4 An embodiment of this utility model is provided: a copper busbar assembly with high stability, including two copper busbars 9, each of the two copper busbars 9 having a wire connector 6 fixedly provided at one end opposite to the other, a wiring group 7 being wound between the two wire connectors 6, a protective insulating cloth 8 being wound between the two wire connectors 6, a protective shell 1 being fixedly provided in the middle of the outer surface of each of the two copper busbars 9, and an elastic plastic insulating cloth 2 being fixedly provided between the two protective shells 1.
[0026] Both protective shells 1 have threaded heads 10 fixedly installed on the front side near the elastic plastic insulating cloth 2. Both threaded heads 10 have fastening rods 4 movably fitted inside them. Each threaded head 10 located in front of the fastening rods 4 has a fixing nut 3 threadedly fitted on it.
[0027] Two copper busbars 9 are each fixedly fitted with a bend 5 at opposite ends, one bends towards the front and the other towards the rear. Both bend 5 have mounting holes on their surfaces. Two fastening rods 4 are hinged together, and the wiring assembly 7 is encased in a protective insulating cloth 8. The protective housing 1 is made of polyetheretherketone (PEEK). The fixing nut 3, fastening rod 4, and threaded head 10 are all made of polyimide. Both the copper busbars 9 and the wiring assembly 7 are made of copper.
[0028] Specifically, two independent copper busbars are connected by a wiring assembly 7, instead of a traditional fixed integrated connection, thus allowing for a certain degree of vertical and horizontal bending. Wire connectors 6 are fixed at both ends of the copper busbars for connecting external devices; this structural design ensures that the connection stability is not affected when the copper busbars are bent. The wiring assembly 7 is encased in protective insulating cloth 8, maintaining connection reliability during bending and increasing overall flexibility.
[0029] The protective insulating cloth 8 wrapped around the outside of the wiring assembly 7 prevents mechanical damage during bending and provides electrical insulation to prevent short circuits and electric shocks. The elastic plastic insulating cloth 2 fixed between the two protective housings 1 provides additional protection and insulation when the copper busbar 9 is bent, ensuring the safety of the internal conductive parts. The protective housing 1 is made of polyetheretherketone (PEEK), which not only provides physical protection but also effectively prevents corrosion and moisture intrusion from the environment, extending the service life of the copper busbar assembly.
[0030] The hinged fastening rod 4 allows for bending of the copper busbar 9 in both directions. Rotating the fixing nut 3 secures the fastening rod 4 to the threaded head 10, further enhancing the stability and reliability of the copper busbar assembly. The threaded head 10, fixed to the front of the protective housing 1, provides the mounting position for the fastening rod 4, ensuring reliable fastening and positioning.
[0031] Both the copper busbar 9 and the wiring assembly 7 are made of highly conductive copper, ensuring excellent conductivity, reducing resistance loss, and improving energy efficiency. The protective housing 1 is made of polyetheretherketone (PEEK), a material with excellent mechanical strength, high-temperature resistance, and corrosion resistance, enhancing the overall protective effect. The fixing nut 3, fastening rod 4, and threaded head 10 are all made of polyimide, a material with good mechanical strength and thermal stability, as well as excellent insulation properties, ensuring the safety and reliability of the components.
[0032] The design of the protective shell 1 and the elastic plastic insulating cloth 2 makes the copper busbar assembly more compact, reducing its space occupation. The fastening rod 4 and the fixing nut 3 work together to achieve fastening and positioning with a simple rotation, greatly simplifying the installation process and reducing installation time and cost. The mounting holes on the surface of the elbow joint 5 facilitate the connection of the copper busbar 9 to external equipment, making installation more convenient. In summary, the high-stability copper busbar assembly provided by this utility model not only achieves greater flexibility and adjustability in design, but also significantly improves the safety, stability, and service life of the copper busbar assembly through multiple protection measures and the selection of superior materials. These features enable it to perform excellently in various power equipment and installation environments, meeting diverse needs.
[0033] Working principle: When in use, since the two copper busbars 9 are connected by the wiring group 7, the two copper busbars 9 can be bent up and down and back and forth to a certain extent. In this process, in order to cooperate with the bending, elastic plastic insulating cloth 2 and protective insulating cloth 8 are also provided, which can protect the copper busbars 9 and the wiring group 7 while being able to bend synchronously.
[0034] Secondly, after bending up and down, the fixing nut 3 can be rotated to fix the fastening rod 4, thereby limiting its position and increasing its stability.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A copper busbar assembly with high stability, comprising two copper busbars (9), characterized in that: A wire connector (6) is fixedly provided at one end of each of the two copper busbars (9), a wiring group (7) is wound between the two wire connectors (6), a protective insulating cloth (8) is wrapped between the two wire connectors (6), a protective shell (1) is fixedly provided in the middle of the outer surface of each of the two copper busbars (9), and an elastic plastic insulating cloth (2) is fixedly provided between the two protective shells (1). Both of the protective shells (1) are fixedly provided with threaded heads (10) near the elastic plastic insulating cloth (2) on the front side. Both of the threaded heads (10) are movably fitted with fastening rods (4), and the threaded heads (10) located in front of the fastening rods (4) are threaded with fixing nuts (3).
2. The copper busbar assembly with high stability according to claim 1, characterized in that: Both copper busbars (9) are fixedly provided with elbow joints (5) at opposite ends. One of the elbow joints (5) is bent at the front end and the other is bent at the rear end.
3. A highly stable copper busbar assembly according to claim 2, characterized in that: Both of the elbow joints (5) have mounting holes on their surfaces.
4. A copper busbar assembly with high stability according to claim 1, characterized in that: The two fastening rods (4) are hinged together, and the wiring assembly (7) is wrapped inside the protective insulating cloth (8).
5. A copper busbar assembly with high stability according to claim 1, characterized in that: The protective shell (1) is made of polyetheretherketone material.
6. A highly stable copper busbar assembly according to claim 1, characterized in that: The fixing nut (3), fastening rod (4), and threaded head (10) are all made of polyimide material.
7. A highly stable copper busbar assembly according to claim 1, characterized in that: Both the copper busbar (9) and the wiring group (7) are made of copper.