A mounting structure of a copper busbar
By setting mounting holes at both ends of the copper busbar body and using a plug-in assembly and expansion blocks, the problem of cumbersome installation of traditional copper busbars is solved, achieving fast and reliable plug-in installation and enhancing the convenience and safety of installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINJIA SHAPED COPPER CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional copper busbar installation methods are cumbersome, requiring fasteners such as bolts for fixation, which complicates the installation process.
The design employs plug-in components and expansion blocks. The copper busbar has mounting holes at both ends. By inserting the plug-in components into the connection holes and reinforcing them with expansion blocks, quick plug-in installation can be achieved.
It enables quick plug-in installation of copper busbars, ensuring tight fit, easy disassembly and assembly, reliable fixation, and protection blocks to prevent them from coming loose, thus enhancing the convenience and safety of installation.
Smart Images

Figure CN224537358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of copper busbars, and in particular to an installation structure for copper busbars. Background Technology
[0002] Copper busbars are key conductors used for high-current transmission and distribution in power systems. They are typically made of high-purity copper and possess low resistance, high conductivity, and excellent mechanical strength. In industrial and electrical fields, copper busbars are important conductive connection materials with good electrical and thermal conductivity. In power systems, copper busbars can stably transmit powerful currents, ensuring a smooth power supply. In electronic equipment, copper busbars ensure the accurate transmission of electronic signals. However, traditional copper busbars are usually bolted to brackets, a method that requires tools for secure installation, making the process relatively cumbersome.
[0003] Chinese Patent Publication No. CN203326381U, published on December 4, 2013, discloses a copper busbar installation structure for an electrical cabinet, including a frame, copper busbars, and connectors. The copper busbars are located inside the cabinet and are assembled with the frame via connectors, which are generally stepped. A drawback of this invention is that the copper busbars are fixed using bolts and other fasteners, making the installation process rather cumbersome. Utility Model Content
[0004] The present invention aims to overcome the shortcomings of the existing technology, which is cumbersome when fixed by fasteners, and provides an installation structure for copper busbars that allows for quick plug-in installation.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: An installation structure for a copper busbar includes: The copper busbar body has mounting holes at both ends; A plug-in assembly, wherein the plug-in assembly is mounted on the copper busbar body and corresponds to the mounting hole; An expansion block is mounted on the plug-in assembly.
[0006] The copper busbar body is the main structure for conducting electricity. Both ends of the copper busbar are connected to the pins of the distribution cabinet. The plug-in components installed on the copper busbar are assembled during processing and production. The plug-in components are installed in the mounting holes of the copper busbar body. When installing the copper busbar body on site, the plug-in components are inserted into the corresponding connection holes to fix both ends of the copper busbar body. Then, the plug-in components are reinforced by expansion blocks, achieving the purpose of quick plug-in installation when installing the copper busbar.
[0007] Preferably, both ends of the copper busbar body are fitted with fitting grooves, and the mounting holes are located on the bottom surface of the fitting grooves. With fitting grooves at both ends of the copper busbar body, and the plug-in components corresponding to the fitting grooves, the protrusions of the plug-in components align with the fitting grooves during copper busbar body installation. This does not affect the fit between the copper busbar and the pins, increasing the contact area between the copper busbar and the pins. This design ensures a tight fit.
[0008] Preferably, the plug-in assembly includes a mounting block and a plug-in block. A connecting post is installed on one side of the mounting block, and the mounting block is fitted to the side of the copper busbar body. The connecting post matches the mounting hole. The plug-in block is fitted to the other side of the copper busbar body. A screw hole is installed on the connecting post, and a stud is installed on the plug-in block. The plug-in block is detachably connected to the connecting post through a threaded connection between the screw hole and the stud. A limiting plate is installed on the plug-in block, and the limiting plate is fitted to the copper busbar body. When installing the plug-in assembly, insert the connecting post on one side of the mounting block into the mounting hole, ensuring the connecting post matches the mounting hole. Then, mount the bottom surface of the plug-in block onto the bottom surface of the limiting plate and the fitting groove, ensuring the limiting plate is flush with the fitting groove. Next, connect the mounting blocks on both sides of the copper busbar to the plug-in block. The screws installed on the plug-in block are threaded into the screw holes. The detachable connection between the mounting block and the plug-in block allows for pre-installation of the plug-in assembly. The mounting block has a disassembly groove corresponding to the disassembly tool. When it is necessary to disassemble the copper busbar, the mounting block and the plug-in block can be separated for disassembly. This design facilitates the assembly and disassembly of the plug-in assembly.
[0009] Preferably, a fixing block is installed at the end of the plug-in block away from the limiting plate. The fixing block is shaped like a frustum and has a pressing groove in the shape of a cross. The fixing block is installed at one end of the plug-in block, and the frustum-shaped fixing block passes through the hole on the connector to fix the plug-in assembly. To facilitate the insertion of the frustum-shaped fixing block into the hole, a cross-shaped pressing groove is formed on the fixing block. The depth of the pressing groove exceeds the length of the fixing block. The pressing groove extends deep into the plug-in block, which can increase the deformation angle of the fixing block. When the fixing block is pushed in, the fixing block bends inward toward the pressing groove, thereby inserting into the hole. This design can fix the plug-in assembly.
[0010] Preferably, the expansion block is placed inside the extrusion groove, and the shape of the expansion block matches the shape of the extrusion groove. In order to prevent the deformation of the fixed block after bending from affecting the fixing effect of the fixed block, after the fixed block passes through the hole, the expansion block is inserted into the extrusion groove. The expansion block corresponding to the shape of the extrusion groove is inserted into the extrusion groove to fix the fixed block and prevent the fixed block from deforming. This design can support the shape of the fixed block.
[0011] Preferably, wedges are installed on the sides of the expansion block, and the wedges have a triangular cross-sectional shape. To prevent the expansion block from coming out, wedges are installed on the sides of the expansion block. The triangular wedges will squeeze the side wall of the extrusion groove when they are carried into the extrusion groove, thereby ensuring that the expansion block is firmly fixed in the extrusion groove. This design can prevent the expansion block from coming out.
[0012] Preferably, the fixing block is provided with a protective sleeve, which is installed on the fixing block and matches the fixing block. Since the end of the fixing block protrudes, the protective sleeve is installed on the fixing block to protect it. The protective sleeve is made of insulating material, which can insulate the fixing block and prevent contact with external conductive materials. This design can protect the fixing block.
[0013] The beneficial effects of this utility model are: it can be quickly plugged in and installed when installing copper busbars, can ensure tight fit, facilitates disassembly and assembly of plug-in components, can fix plug-in components, can support the shape of the fixing block, can prevent the expansion block from coming out, and can protect the fixing block. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Cross-sectional view of the middle plug-in assembly; Figure 3 yes Figure 1 A schematic diagram of the structure of the plug-in assembly; Figure 4 yes Figure 1 A schematic diagram of the structure of the central expansion block.
[0015] In the diagram: 1. Copper busbar body; 11. Mounting hole; 12. Fitting groove; 2. Plug-in assembly; 21. Mounting block; 22. Plug-in block; 23. Connecting post; 24. Screw hole; 25. Screw stud; 26. Limiting plate; 27. Fixing block; 28. Extrusion groove; 3. Tightening block; 31. Wedge block; 4. Protective sleeve. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0017] like Figure 1 In the illustrated embodiment, a copper busbar mounting structure includes: The copper busbar body 1 has mounting holes 11 at both ends; Plug-in component 2 is installed on the copper busbar body 1 and corresponds to the mounting hole 11; Expansion block 3 is installed on plug-in assembly 2.
[0018] Both ends of the copper busbar body 1 are fitted with fitting grooves 12, and the mounting holes 11 are located on the bottom surface of the fitting grooves 12.
[0019] like Figure 2 As shown, the plug-in assembly 2 includes a mounting block 21 and a plug-in block 22. A connecting post 23 is installed on one side of the mounting block 21. The mounting block 21 fits against the side of the copper busbar body 1. The connecting post 23 matches the mounting hole 11. The plug-in block 22 fits against the other side of the copper busbar body 1. A screw hole 24 is installed on the connecting post 23. A stud 25 is installed on the plug-in block 22. The plug-in block 22 is detachably connected to the connecting post 23 through the threaded connection between the screw hole 24 and the stud 25. A limiting plate 26 is installed on the plug-in block 22. The limiting plate 26 fits against the copper busbar body 1.
[0020] like Figure 3 As shown, a fixing block 27 is installed at the end of the plug-in block 22 away from the limiting plate 26. The fixing block 27 is shaped like a frustum and has an extrusion groove 28, which is shaped like a cross.
[0021] like Figure 4 As shown, the tension block 3 is placed inside the extrusion groove 28, and the shape of the tension block 3 matches the shape of the extrusion groove 28.
[0022] Each side of the tensioning block 3 is equipped with a wedge 31, the cross-sectional shape of which is triangular. The fixing block 27 is provided with a protective sleeve 4, which is installed on the fixing block 27 and matches the fixing block 27.
[0023] When installing the copper busbar body 1, before the production or installation of the copper busbar body 1, the plug-in block 22 and the mounting block 21 are connected together by the screw 24 and the screw hole 25, and the plug-in assembly 2 is fixed on the mounting hole of the copper busbar body 1 to complete the assembly of the copper busbar body 1.
[0024] Then, the copper busbar body 1 is installed in the distribution cabinet. The fixing block 27 on the plug-in block 22 is pressed against the corresponding connection hole. When the fixing block 27 is pressed, the compression groove 28 shrinks until the fixing block 27 is completely pushed past the connection hole, and the plug-in block 22 is fixed on the pin. The distance between the fixing block 27 and the upper limit plate 26 of the plug-in block 22 corresponds to the pin. Under the action of the fitting groove 12, the width of the limit plate 26 is less than the depth of the fitting groove 12, and the pin will squeeze the copper busbar body 1 to ensure the fitting of the pin and the copper busbar body 1, thus completing the installation of the copper busbar body 1.
[0025] Then, a tightening block 3 is hammered into the inner extrusion groove 28. The tightening block 3, through a wedge block 31, presses against the side of the extrusion groove 28, fixing the wedge block 31 in the extrusion groove 28 to support the fixing block 27 and prevent deformation of the fixing block 27. Then, a protective sleeve 4 is installed on the fixing block 27 to protect and insulate it.
Claims
1. An installation structure for a copper busbar, characterized in that it comprises: The copper busbar body (1) has mounting holes (11) at both ends. A plug-in assembly (2) is mounted on the copper busbar body (1) and corresponds to the mounting hole (11); An expansion block (3) is mounted on the plug assembly (2).
2. The installation structure of a copper busbar according to claim 1, characterized in that, Both ends of the copper busbar body (1) are fitted with grooves (12), and the mounting holes (11) are located on the bottom surface of the fitting grooves (12).
3. The installation structure of a copper busbar according to claim 1, characterized in that, The plug-in assembly (2) includes a mounting block (21) and a plug-in block (22). A connecting post (23) is installed on one side of the mounting block (21). The mounting block (21) is in contact with the side of the copper busbar body (1). The connecting post (23) matches the mounting hole (11). The plug-in block (22) is in contact with the other side of the copper busbar body (1). A screw hole (24) is installed on the connecting post (23). A stud (25) is installed on the plug-in block (22). The plug-in block (22) is detachably connected to the stud (25) and the connecting post (23) through the threaded connection of the screw hole (24) and the stud (25). A limiting plate (26) is installed on the plug-in block (22). The limiting plate (26) is in contact with the copper busbar body (1).
4. The installation structure of a copper busbar according to claim 3, characterized in that, The plug-in block (22) is equipped with a fixing block (27) at one end away from the limiting plate (26). The fixing block (27) is shaped like a frustum and has an extrusion groove (28) on it. The extrusion groove (28) is shaped like a cross.
5. The installation structure of a copper busbar according to claim 4, characterized in that, The expansion block (3) is placed in the extrusion groove (28), and the shape of the expansion block (3) matches the shape of the extrusion groove (28).
6. The installation structure of a copper busbar according to claim 5, characterized in that, Each of the expansion blocks (3) has a wedge (31) installed on its side, and the cross-sectional shape of the wedge (31) is triangular.
7. The installation structure of a copper busbar according to claim 4, characterized in that, The fixing block (27) is provided with a protective sleeve (4), which is installed on the fixing block (27) and matches the fixing block (27).