A connector for bus ducts

Abstract

The application provides a connector for bus duct, belonging to the technical field of power transmission equipment, comprising a connector main body and an extrusion mechanism. The connector main body comprises an outer shell, an inner cavity and a connecting cavity, a plurality of fixed insulation plates are installed in the connecting cavity, a clamping groove is arranged on the left side to accurately fit the bus bar, a movable insulation plate slides through a limiting rod, a fixed connecting piece and a wave spring group are arranged on the right side to ensure low contact resistance and stable connection; the fixed insulation plate and the movable insulation plate are provided with heat dissipation holes to improve the heat dissipation efficiency in cooperation with the circulating gap. The extrusion mechanism comprises a pressing plate, a connecting plate, a trapezoidal block and a positioning assembly, the trapezoidal groove slope is linked with the clamping strip, the automatic locking is realized in cooperation with the extension spring and the square groove, and the moving plate and the roller ensure smooth driving. The application solves the problems of insufficient mechanical stability, high contact resistance and poor heat dissipation performance of the existing connector, improves the reliability and efficiency of power transmission, and is suitable for various bus duct connection scenes.

Description

Technical Field

[0001] This invention relates to the field of power transmission equipment technology, and in particular to a connector for busbar trunking. Background Technology

[0002] With the rapid development of modern construction and industry, the continuous growth in electricity demand places higher demands on the safety and efficiency of power transmission systems. Busbar trunking, as a highly efficient and reliable main power transmission line, is widely used in high-rise buildings, data centers, industrial plants, and other locations to replace traditional cables and achieve high-current, high-reliability power transmission. Busbar trunking connectors, as one of the core components of the busbar trunking system, are used to connect the busbars between busbar trunking sections, ensuring stable power transmission and the mechanical stability of the system. Their performance directly affects the operational safety, heat dissipation, and installation and maintenance efficiency of the power system.

[0003] Existing busbar connectors typically consist of two side plates, multiple insulating partitions, and connecting plates, all secured together by bolts. The busbar is inserted between adjacent connecting plates to achieve electrical connection. However, existing connectors rely primarily on bolts for fixation, which are prone to loosening during long-term operation due to vibration, thermal expansion and contraction, or bolt fatigue. This can lead to poor contact or structural loosening, increasing the risk of short circuits and overheating. The contact surface between the busbar and connecting plates often exhibits high contact resistance due to uneven pressure distribution or surface oxidation, causing localized overheating, accelerating material aging, and even posing a fire hazard. Furthermore, existing connector designs lack effective heat dissipation structures; heat accumulation during high-current operation can easily lead to temperature rise, affecting the performance of insulation materials and system lifespan. This invention overcomes these shortcomings through an integrated connecting frame, wedge-shaped self-locking mechanism, wave spring assembly, and circulating gap design, improving mechanical stability, electrical performance, and heat dissipation efficiency, providing a safer and more efficient solution for power transmission systems. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] Therefore, the present invention aims to solve the problems of insufficient mechanical stability, overheating risk caused by high contact resistance, and insufficient heat dissipation performance of existing busbar connectors due to loose fastening bolts.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a connector for busbar trunking, comprising: The connector body includes a housing, an internal connecting cavity, and a cavity above the connecting cavity. Multiple fixed insulating plates are installed inside the connecting cavity. Each of the multiple fixed insulating plates has a movable insulating plate symmetrically arranged at its left end. Connecting pieces are fixedly installed on the right side walls of each of the multiple movable insulating plates, and wave spring assemblies are symmetrically installed at both the front and rear ends of the right side walls of each of the multiple connecting pieces. The extrusion mechanism includes a pressure plate disposed above the outer shell. The bottom end of the pressure plate extends into the cavity and is fixedly connected to multiple connecting plates. The number of the multiple connecting plates is consistent with the number of the movable insulating plates. The bottom end of each of the multiple connecting plates is fixedly connected to a trapezoidal block. A positioning component is drivenly connected between the multiple connecting plates.

[0008] In a preferred embodiment of the connector for busbar trunking described in this invention, the wave spring assembly includes a plurality of wave springs fixedly connected to the right side wall of the connecting piece, and each of the plurality of wave springs has a contact piece fixedly installed at its right end.

[0009] As a preferred embodiment of the connector for busbar trunking described in this invention, the front and rear ends of the left side wall of the fixed insulating plate are both openly provided with slots adapted to the busbar trunking, and the two sets of wave springs on the right end of the connecting piece are symmetrically arranged on the left side of the two slots.

[0010] In a preferred embodiment of the connector for busbar trunking described in this invention, a limiting rod is fixedly installed at the center of the connecting cavity, and multiple movable insulating plates are slidably connected to the outer surface of the limiting rod.

[0011] In a preferred embodiment of the connector for busbar trunking described in this invention, heat dissipation holes are provided inside the plurality of fixed insulating plates and movable insulating plates.

[0012] As a preferred embodiment of the connector for busbar trunking described in this invention, a square groove is provided on the upper side inside the connecting plate, and a trapezoidal groove is provided on the lower side inside the connecting plate, wherein the top wall of the trapezoidal groove is set as an inclined surface.

[0013] As a preferred embodiment of the connector for busbar trunking described in this invention, the positioning component includes a horizontal plate slidably connected inside the cavity, and the horizontal plate has multiple through slots, the same number as the connecting plates, and the multiple connecting plates longitudinally penetrate the multiple through slots. A retaining strip is fixedly installed on the left side wall of each of the multiple through slots. The right end of the retaining strip is arc-shaped and extends into the trapezoidal groove, abutting against the inclined surface at its top. A telescopic spring is fixedly connected to the right end of the horizontal plate, and the right end of the telescopic spring is fixedly connected to the right inner wall of the cavity. A handle is fixedly connected to the left end of the horizontal plate, penetrating the left side wall of the cavity and extending to its outside.

[0014] As a preferred embodiment of the connector for busbar trunking described in this invention, the cavity has symmetrically provided limiting grooves at both ends, and each of the two limiting grooves is slidably connected to a support plate, and the opposite surfaces of the two support plates are fixedly connected to the outer wall of the horizontal plate.

[0015] As a preferred embodiment of the connector for busbar trunking described in this invention, the bottom surface of the trapezoidal block is provided with a guide groove, a sliding groove is provided between the connecting cavity and the cavity, a movable plate is fixedly connected to the top of the movable insulating plate, and the top of the movable plate passes through the sliding groove and extends into the guide groove to abut against its inclined surface.

[0016] As a preferred embodiment of the connector for busbar trunking described in this invention, a rotating rod is provided through the center of the movable plate, and rollers are symmetrically installed at the front and rear ends of the rotating rod, with both rollers being tactilely connected to slide rails opened at the front and rear ends of the cavity.

[0017] The beneficial effects of this invention are: (1) This invention significantly improves the performance and reliability of power transmission systems through innovative mechanical linkage design. Compared with traditional connectors that rely on fastening bolts, this invention uses a pressing mechanism and a self-locking positioning component, which can accurately clamp the busbar with a single pressing operation, simplifying the installation process and reducing construction difficulty and time costs. Especially in confined spaces or high-altitude operations, the operating efficiency is improved, effectively solving the defects of complex installation in existing technologies. (2) This invention achieves uniform elastic contact pressure through a wave spring assembly, dynamically compensating for thermal expansion and contraction and mechanical vibration, ensuring a constant contact force between the busbar and the connecting piece, significantly reducing contact resistance, minimizing the risk of local overheating, and extending the service life of the materials. Simultaneously, the circulating gap formed between the connecting piece and the busbar, along with the heat dissipation holes on the fixed and movable insulation plates, jointly promote airflow, increase the heat dissipation area, and reduce the operating temperature, effectively solving the problem of insufficient heat dissipation performance in existing technologies and enhancing the long-term stability of the system.

[0018] (3) The connecting frame structure of this invention, combined with the design of limiting rods and rollers, ensures the smooth movement and precise alignment of the movable insulating plate. Combined with a self-locking mechanism, it achieves reliable locking, completely eliminating mechanical instability caused by loose bolts and improving vibration resistance. The collaborative design of the fixed and movable insulating plates increases the insulation distance, reduces creepage and breakdown risks, and enhances electrical safety. Through the above comprehensive improvements, this invention provides an efficient, stable, and safe solution for busbar connections, suitable for various power transmission scenarios. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a three-dimensional orthographic sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a three-dimensional side sectional view of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 6 This is a three-dimensional top sectional view of the present invention; Figure 7 This is a perspective view of the connecting plate and trapezoidal block of the present invention; Figure 8 This is a perspective view of the positioning component of the present invention; Figure 9 This is a perspective view of a portion of the structure at the movable insulating plate of the present invention; Figure 10 This is a perspective view of the fixed insulating plate of the present invention; In the picture: 100. Connector body; 101. Outer shell; 101a. Connecting cavity; 101b. Cavity; 101c. Limiting groove; 101d. Slide groove; 101e. Slide rail; 102. Fixed insulating plate; 102a. Slot; 103. Movable insulating plate; 104. Connecting piece; 105. Wave spring assembly; 105a. Wave spring; 105b. Contact piece; 106. Limiting rod; 107. Heat dissipation hole; 108. Moving plate; 109. Rotating rod; 110. Roller; 200. Extrusion mechanism; 201. Pressure plate; 202. Connecting plate; 202a. Square groove; 202b. Trapezoidal groove; 203. Trapezoidal block; 203a. Guide slant groove; 204. Positioning assembly; 204a. Horizontal plate; 204b. Through groove; 204c. Locking strip; 204d. Telescopic spring; 204e. Handle; 204f. Support plate. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example Reference Figures 1-10 This embodiment provides a connector for busbar trunking. Through an innovative mechanical linkage design, it achieves efficient and stable busbar connection, improving mechanical stability, electrical performance, and heat dissipation efficiency, while simplifying the installation and disassembly process. The main components include a connector body 100 (including an outer shell 101, a fixed insulating plate 102, a movable insulating plate 103, a connecting piece 104, a wave spring assembly 105, and a limiting rod 106), a pressing mechanism 200 (including a pressure plate 201, a connecting plate 202, a trapezoidal block 203, and a positioning assembly 204), and auxiliary moving parts (a moving plate 108, a rotating rod 109, and rollers 110), which together achieve precise alignment, uniform pressing, reliable locking, and excellent heat dissipation.

[0024] Specifically, the connector body 100 includes an outer shell 101, which is made of high-strength aluminum alloy, possessing excellent mechanical rigidity and corrosion resistance to ensure structural stability during long-term operation. An internal connecting cavity 101a is provided to accommodate the busbar and connecting components, resulting in a compact and rationally laid-out structure. Above the connecting cavity 101a, a cavity 101b is provided to provide movement space for the extrusion mechanism 200, optimizing the overall design. Multiple fixed insulating plates 102 are installed inside the connecting cavity 101a. These fixed insulating plates 102 are made of high-temperature resistant polyimide material, and their number is customized according to the busbar model to ensure reliable electrical isolation. The left side wall of the fixed insulating plate 102 has open slots 102a at both ends. The dimensions of the slots 102a are precisely matched to the cross-section of the busbar, and the spacing between adjacent slots 102a is consistent with the busbar spacing, ensuring smooth insertion and accurate positioning of the busbar, reducing installation errors, and improving connection stability.

[0025] Multiple fixed insulating plates 102 are symmetrically arranged with movable insulating plates 103 on their left ends. The movable insulating plates 103 are also made of polyimide, possessing high insulation and heat resistance. Their sliding design allows for dynamic adjustment of contact pressure, enhancing connection flexibility. A connecting piece 104 is fixedly installed on the right side wall of the movable insulating plate 103. The connecting piece 104 is made of highly conductive copper, ensuring excellent current transmission performance. Wave spring assemblies 105 are symmetrically installed at both ends of the right side wall of the connecting piece 104. The wave spring assembly 105 includes multiple wave springs 105a, made of high-temperature resistant stainless steel, providing uniform elastic clamping force, dynamically compensating for thermal expansion and contraction and mechanical vibration, and maintaining constant contact pressure. A contact piece 105b is fixedly installed on the right end of the wave spring 105a. The contact piece 105b is made of silver-plated copper, further reducing contact resistance and improving electrical connection reliability. Two sets of wave spring assemblies 105 on the right end of the connecting piece 104 are symmetrically arranged on the left side of the slot 102a, forming a circulation gap with the busbar to promote airflow, significantly improve heat dissipation efficiency, and reduce operating temperature.

[0026] A limiting rod 106 is fixedly installed at the center of the connecting cavity 101a. The limiting rod 106 is made of high-strength steel with an anti-corrosion treatment. Multiple movable insulating plates 103 are slidably connected to its outer surface to ensure stability during horizontal movement, prevent displacement or tilting, and improve mechanical reliability. Both the fixed insulating plate 102 and the movable insulating plate 103 have heat dissipation holes 107 inside. The heat dissipation holes 107 are arranged in an array to increase the heat dissipation area, promote rapid heat dissipation, reduce the risk of overheating during high current operation, and extend the life of the insulating materials and connectors.

[0027] The pressing mechanism 200 includes a pressure plate 201 disposed above the outer shell 101. The pressure plate 201 is made of high-rigidity steel plate with a non-slip coating on the surface for easy application of force by the operator. Its bottom end extends into the cavity 101b and is fixedly connected to multiple connecting plates 202. The number of connecting plates 202 is the same as that of the movable insulating plate 103 to ensure uniform driving force. A square groove 202a is formed on the upper side of the connecting plate 202 for locking with the positioning component 204; a trapezoidal groove 202b is formed on the lower side, and its inclined top wall facilitates pressing with the locking strip 204c of the positioning component 204 to drive horizontal movement. A trapezoidal block 203 is fixedly connected to the bottom end of the connecting plate 202. The trapezoidal block 203 is made of high-strength alloy and has a guide groove 203a on its bottom surface. The inclined surface design ensures that the movable insulating plate 103 moves accurately and smoothly horizontally. A sliding groove 101d is opened above the movable insulating plate 103, and a movable plate 108 is fixedly connected to the top. The top of the movable plate 108 passes through the sliding groove 101d and extends into the guide inclined groove 203a, abutting against the inclined surface. Horizontal driving is achieved by the pressure of the inclined surface.

[0028] A rotating rod 109 is installed through the center of the movable plate 108. Rollers 110 are symmetrically installed at both ends of the rotating rod 109. The rollers 110 are made of wear-resistant nylon material and are rolled within the slide rails 101e opened at both ends of the cavity 101b. This significantly reduces the frictional resistance of the horizontal movement of the movable plate 108 and the movable insulating plate 103, ensuring smooth movement, avoiding jamming, and improving operational reliability and service life. The positioning component 204 includes a horizontal plate 204a slidably connected within the cavity 101b. The horizontal plate 204a is made of lightweight, high-strength aluminum alloy and has multiple through slots 204b inside. The number of through slots 204b is the same as that of the connecting plate 202, and the cross-section is twice that of the connecting plate 202. This ensures that the horizontal movement of the horizontal plate 204a is unobstructed when the connecting plate 202 moves downward, maintaining structural stability. A retaining strip 204c is fixedly installed on the left side wall of the through groove 204b. The retaining strip 204c is made of high-toughness steel and has an arc-shaped right end, which facilitates smooth compression with the inclined surface of the trapezoidal groove 202b. It extends into the trapezoidal groove 202b and abuts against its top inclined surface to achieve compression drive.

[0029] A telescopic spring 204d is fixedly connected to the right end of the horizontal plate 204a. The telescopic spring 204d is made of high-elasticity alloy steel, and its right end is fixedly connected to the inner wall of the right side of the cavity 101b, providing a rebound force to achieve automatic reset of the horizontal plate 204a. The left end of the horizontal plate 204a passes through the left side wall of the cavity 101b and extends to the outside, where a handle 204e is fixedly connected. The handle 204e is ergonomically designed with an anti-slip texture on the surface, making it easy for operators to apply force and simplifying disassembly. Limiting grooves 101c are symmetrically opened at both the front and rear ends of the cavity 101b. A support plate 204f is slidably connected within the limiting grooves 101c. The support plate 204f is made of high-strength plastic and is fixedly connected to the outer wall of the horizontal plate 204a, stably supporting the horizontal plate 204a within the cavity 101b, ensuring smooth horizontal movement and not affecting the sliding function.

[0030] During installation, the workers insert the busbars of the two busbar trunking sections to be connected into the slots 102a at the front or rear of multiple fixed insulating plates 102. The precise fitting design of the slots 102a ensures smooth insertion and accurate positioning of the busbars, reducing installation errors. Subsequently, the workers press down on the pressure plate 201, which drives multiple connecting plates 202 and trapezoidal blocks 203 to move vertically downward. The high rigidity of the connecting plates 202 ensures uniform force transmission. When the connecting plates 202 move downward, the inclined surface of their trapezoidal grooves 202b compresses the clamping strips 204c to the left. The arc design of the clamping strips 204c reduces frictional resistance, making the compression smooth. The clamping strips 204c drive the horizontal plate 204a to move to the left, and the horizontal plate 204a stretches the telescopic spring 204d, generating a rightward rebound force. After the locking strip 204c moves out of the trapezoidal groove 202b, the connecting plate 202 continues to move downward. When the square groove 202a and the locking strip 204c are on the same horizontal plane, the rebound force of the telescopic spring 204d pulls the horizontal plate 204a back to its initial position. The locking strip 204c inserts into the square groove 202a, locking the connecting plate 202 and preventing it from moving upward, thus ensuring structural stability.

[0031] During the downward movement of the connecting plate 202, the trapezoidal block 203 moves vertically downwards simultaneously. The inclined surface of its bottom guide groove 203a presses against the moving plate 108, causing it to move to the right. The moving plate 108 slides smoothly within the slide rail 101e via the rotating rod 109 and roller 110, driving the movable insulating plate 103, connecting piece 104, and wave spring assembly 105 to move to the right. When the moving plate 108 moves to the rightmost end of the guide groove 203a, the contact pieces 105b of the two wave spring assemblies 105 abut against the left side wall of the busbar, compressing the wave springs 105a and generating elastic clamping force to achieve a stable connection. The elastic design of the wave springs 105a ensures that a constant contact pressure is maintained during equipment vibration, reducing contact resistance. The circulation gap and heat dissipation holes 107 between the busbar and the movable insulating plate 103 promote air circulation, significantly improving heat dissipation efficiency and reducing operating temperature.

[0032] During disassembly, the operator pulls handle 204e to the left, causing the horizontal plate 204a and retaining strip 204c to move horizontally to the left. Retaining strip 204c moves out of the square slot 202a, releasing the limiting position of connecting plate 202. The elastic force of wave spring 105a springs the movable insulating plate 103 to the left. The movable insulating plate 103, through moving plate 108, presses the trapezoidal block 203 upward, causing connecting plate 202 and pressure plate 201 to move upward. After releasing handle 204e, the rebound force of telescopic spring 204d causes the horizontal plate 204a and retaining strip 204c to return to their original position to the right. Retaining strip 204c re-inserts into trapezoidal slot 202b, completing the reset. The operator can then pull out the busbar, completing the disassembly. The operation is simple and efficient.

[0033] This embodiment achieves precise alignment, uniform clamping, and reliable locking of the busbar through the coordinated design of the connector body 100 and the pressing mechanism 200, combined with the linkage of the limiting rod 106, roller 110, and positioning component 204. The wave spring assembly 105 and heat dissipation holes 107 effectively reduce contact resistance and operating temperature, while the circulation gap further enhances heat dissipation. The limiting rod 106 and roller 110 ensure smooth movement. The overall structure improves mechanical stability, electrical performance, and installation / disassembly efficiency, making it suitable for various busbar connection scenarios.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A connector for busbar trunking, characterized in that: include, The connector body (100) includes a housing (101), the housing (101) having a connecting cavity (101a) inside, and a cavity (101b) above the connecting cavity (101a). A fixed insulating plate (102) is installed inside the connecting cavity (101a), and multiple fixed insulating plates (102) are provided. A movable insulating plate (103) is symmetrically arranged at the left end of each of the multiple fixed insulating plates (102). A connecting piece (104) is fixedly installed on the right side wall of each of the multiple movable insulating plates (103), and wave spring assemblies (105) are symmetrically installed at both the front and rear ends of the right side wall of each of the multiple connecting pieces (104); and... The extrusion mechanism (200) includes a pressure plate (201) disposed above the outer shell (101). The bottom end of the pressure plate (201) extends into the cavity (101b) and is fixedly connected to a plurality of connecting plates (202). The number of the plurality of connecting plates (202) is consistent with the number of the movable insulating plates (103). The bottom end of each of the plurality of connecting plates (202) is fixedly connected to a trapezoidal block (203). A positioning component (204) is drivenly connected between the plurality of connecting plates (202). The upper side of the connecting plate (202) is provided with a square groove (202a), and the lower side of the connecting plate (202) is provided with a trapezoidal groove (202b), and the top wall of the trapezoidal groove (202b) is set as an inclined surface; The positioning component (204) includes a horizontal plate (204a) slidably connected inside the cavity (101b), and the horizontal plate (204a) has multiple through slots (204b) with the same number as the connecting plates (202) inside. The multiple connecting plates (202) are longitudinally connected through the multiple through slots (204b). The left side wall of the multiple through slots (204b) is fixedly installed with a retaining strip (204c). The right end of the retaining strip (204c) is arc-shaped and extends into the trapezoidal groove (202b) to abut against the inclined surface at its top. The right end of the horizontal plate (204a) is fixedly connected with a telescopic spring (204d), and the right end of the telescopic spring (204d) is fixedly connected to the right inner wall of the cavity (101b). The left end of the horizontal plate (204a) penetrates the left side wall of the cavity (101b) and extends to its outside, where a handle (204e) is fixedly connected.

2. The connector for busbar trunking as described in claim 1, characterized in that: The wave spring assembly (105) includes a plurality of wave springs (105a) fixedly connected to the right side wall of the connecting piece (104), and a contact piece (105b) is fixedly installed at the right end of each of the plurality of wave springs (105a).

3. The connector for busbar trunking as described in claim 2, characterized in that: The front and rear ends of the left side wall of the fixed insulating plate (102) are both openly provided with slots (102a) that are compatible with the busbars of the busbar trunking, and the two sets of wave springs (105) at the right end of the connecting piece (104) are symmetrically arranged on the left side of the two slots (102a).

4. The connector for busbar trunking as described in claim 3, characterized in that: A limiting rod (106) is fixedly installed at the center of the connecting cavity (101a), and multiple movable insulating plates (103) are slidably connected to the outer surface of the limiting rod (106).

5. The connector for busbar trunking as described in claim 4, characterized in that: The interior of each of the fixed insulating plates (102) and movable insulating plates (103) is provided with heat dissipation holes (107).

6. The connector for busbar trunking as described in claim 5, characterized in that: The cavity (101b) has symmetrically provided limiting grooves (101c) at both the front and rear ends. The two limiting grooves (101c) are slidably connected to the interior of each of the two limiting grooves (101c), and the opposite surfaces of the two supporting plates (204f) are fixedly connected to the outer wall of the horizontal plate (204a).

7. The connector for busbar trunking as described in claim 6, characterized in that: The bottom surface of the trapezoidal block (203) is provided with a guide groove (203a), and a sliding groove (101d) is provided between the connecting cavity (101a) and the cavity (101b). The top of the movable insulating plate (103) is fixedly connected to a movable plate (108), and the top of the movable plate (108) passes through the sliding groove (101d) and extends into the guide groove (203a) to abut against its inclined surface.

8. The connector for busbar trunking as described in claim 7, characterized in that: A rotating rod (109) is provided through the center of the movable plate (108). Rollers (110) are symmetrically installed at the front and rear ends of the rotating rod (109), and both rollers (110) are tactilely connected to the slide rails (101e) opened at the front and rear ends of the cavity (101b).

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