Prefabricated bus duct connector

Abstract

The invention relates to the technical field of bus ducts, in particular to a prefabricated bus duct connector which comprises shells and three copper bars located at the tail ends of the shells, conductive plates and insulating plates are arranged on the two sides of each copper bar, a first pouring mold assembly is arranged between the two shells in a matched mode, and a second pouring mold assembly is installed on one side of the first pouring mold assembly. And a fastener is fixedly mounted in the center of one inner side wall of the pouring mold assembly. According to the invention, through accurate alignment and clamping of bus duct joints, by utilizing the assembly of the first pouring mold assembly and the second pouring mold assembly and the design of a clamping piece in a fastener, uniform and tight contact among a copper bar, a current-conducting plate and an insulating plate is ensured; the bus duct joint is filled with the electric power compounded grease, so that the bus duct joint is protected from environmental corrosion, and meanwhile, the electric power compounded grease can reduce the contact resistance of the bus duct joint and reduce the electric energy loss and heat productivity, so that the service life of the bus duct is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of bus ducts, and in particular to a prefabricated bus duct connector. Background Art

[0002] The bus duct connector is a device specially used to connect the various sections of the bus duct. It is usually composed of a connector housing, a connecting insulating sleeve, a conductor connection assembly, a ground connection assembly and an end structure. A through chamber is formed inside the bus duct connector to accommodate and fix the conductive bars of the bus duct. The connecting insulating sleeve is a key component. It adopts a multi-layer frame structure with multiple sets of slots arranged in parallel, and the bus conductors can be easily inserted into them. The conductor connection assembly is responsible for connecting the conductive bars of adjacent bus duct sections to ensure the continuous transmission of current. The ground connection assembly is used to connect the grounding conductor of the bus duct to ensure the safe operation of the equipment. The connector housing and the end structure not only play a protective role, but also ensure the overall strength and stability of the connector.

[0003] In order to simplify the on-site installation process and ensure that the connector has excellent conductivity and insulation performance, the bus duct connector uses a prefabrication method. First, clean the copper busbar surface to ensure that it is free of oil and oxides, then fit the conductive plate tightly to one side of the copper busbar and fix it with bolts of appropriate tightening force, and then install the insulating plate on the other side of the conductive plate and fix it in the same way. After that, install the matching mold at the predetermined position of the bus duct, pour the evenly mixed power compound grease into the mold, remove the mold after the power compound grease cools and solidifies to form a connector, and finally measure the insulation resistance and check the conductivity with a megohmmeter to ensure that the connector is intact and meets the design requirements.

[0004] Power compound grease has good resistance to high temperature, moisture, mildew and chemical corrosion. It also has the characteristics of not flowing at high temperature, not cracking at low temperature, stable physical and chemical properties and long service life. In order to adapt to various harsh environments, the multiple copper bars of the connector need to be installed with conductive plates and insulating plates in sequence through multiple bolts, and then the power compound grease is filled in the connection part of the bus duct. The ordinary connector aligns the ends of the two sections of the bus duct with each other and inserts them into the alternating conductive plates and insulating plates. After ensuring that the holes are concentric, tighten a joint bolt to complete the assembly. Compared with ordinary connectors, prefabricated connectors can be installed on-site according to the needs of different power transmission and distribution systems, but new problems will arise. When multiple bolts are used to install the conductive plate and the insulating plate on one side of the copper busbar at the same time, the copper busbar is subjected to the tension and pressure generated by the tightening of the bolts in one direction, which will cause uneven distribution of contact pressure between the surfaces of the copper busbar and the conductive plate and the insulating plate. In addition, the installation of bolts is mostly manual, and it is difficult to control the tightening force of each bolt to be uniform and appropriate. If the fastening area of ​​the copper busbar is subjected to uneven force, it will deform, causing its contact surface with the conductive plate and the insulating plate to become uneven, reducing the actual contact area, thereby reducing the contact effect, increasing the contact resistance, and may cause local overheating and reduced insulation performance, affecting the current transmission efficiency.

[0005] To this end, a prefabricated bus duct connector is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a prefabricated bus duct connector. In order to solve the problem that if the fastening area of ​​the copper bar is subjected to uneven force, the contact surface between the copper bar and the conductive plate and the insulating plate becomes uneven, the copper bars of two sections of the bus duct are aligned and inserted into the mold, and then calibrated, clamped, poured with an electric composite grease solution and cooled to shape, so as to achieve the closure of the connection.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A prefabricated bus duct connector, comprising a shell and three copper bars at the end of the shell, each group of copper bars are provided with conductive plates and insulating plates on both sides, a casting mold assembly 1 is matched between the two shells, a casting mold assembly 2 is installed on one side of the casting mold assembly 1, a fastener is fixedly installed in the center of the inner side wall of the casting mold assembly 1, positioning transverse grooves are opened on the two side surfaces of the shell, a horizontal mounting strip is installed in the center of the vertical surface of the casting mold assembly 2 and one side of the casting mold assembly, the horizontal mounting strip matches the positioning transverse groove, the fastener comprises a vertical strip and a clamping piece, the vertical strip moves through In the center of the conductive plate and the insulating plate, the clamping part is located inside the vertical strip, and the clamping part includes six push rods, extrusion blocks and two sliding columns. The extrusion blocks are arranged on the side surfaces of both ends of the push rods, and the sliding columns are installed inside the vertical strips. The push rods are sleeved on the surfaces of the two sliding columns. By assembling the casting mold component 1 and the casting mold component 2, the two sliding columns are controlled to move in the positive and negative directions respectively. The six push rods are equidistantly displaced after being pulled, and the conductive plate and the insulating plate are pressed and in tight contact with the copper busbar. The assembly of the casting mold component 1 and the casting mold component 2 forms a mold cavity with an upper opening.

[0009] From the above scheme, we can know that: through the innovative casting mold component design, combined with the push rod, extrusion block and sliding column structures in the fasteners, the conductive plate and the insulating plate can be evenly clamped on the copper busbar, ensuring the reliability of the electrical connection. At the same time, the matching of the horizontal mounting strip and the positioning transverse groove effectively ensures the horizontal alignment of the shell and the copper busbar, simplifying the installation process. In addition, the upper open mold cavity formed by the assembly of the mold component is convenient for the pouring and cooling of the electric composite grease solution, realizing the closure and protection of the busbar connection, and the overall structure is compact and practical.

[0010] Preferably, the fastener also includes a movable side groove, an installation inner groove and a matching notch. The movable side grooves penetrate left and right and are opened on the side surface of the vertical strip. Three groups of movable side grooves are arranged. One end of the vertical strip is connected with the horizontal installation strip bolt of the casting mold assembly. The matching notch is opened at the other end of the vertical strip. The installation inner groove is opened inside the vertical strip. The movable side grooves, the installation inner groove and the matching notch are connected.

[0011] From the above scheme, it can be seen that by adding structures such as movable side grooves, mounting inner grooves and matching notches, not only the flexibility and installation convenience of fasteners are enhanced, but also the vertical strips can be more firmly connected to the casting mold assembly. At the same time, these structures cooperate with push rods, extrusion blocks and sliding columns to achieve precise clamping of conductive plates and insulating plates, further improving the stability and safety of bus duct connection. The overall design is ingenious and easy to operate, which effectively improves the practicality and reliability of bus duct connectors.

[0012] Preferably, the horizontality mounting strip includes a strip body and mounting bolts. The strip body is mounted at the center of the vertical surface of the casting mold component 2 and one side of the casting mold component. The mounting bolts are arranged at both ends of the strip body. The two strip bodies are connected to the positioning transverse groove through the mounting bolts. An adjusting piece is arranged on one side of the mounting bolt of the casting mold component 2, and two adjusting pieces are correspondingly installed on one side of the mounting bolt.

[0013] From the above scheme, we can know that: through the innovative fastener design, combined with the movable side groove, the installation inner groove, the matching notch, and the strip body and the installation bolts in the horizontal installation strip, not only the precise clamping of the conductive plate and the insulating plate is achieved, but also the horizontal alignment of the shell and the copper bar is ensured, which greatly improves the stability and safety of the bus duct connection. At the same time, the setting of the adjustment piece makes the installation process more flexible and convenient, the overall structure is compact and practical, and effectively improves the installation efficiency and reliability of the bus duct connector.

[0014] Preferably, the levelness mounting strip further comprises a traction bar and a docking block, one end of the traction bar passes through the two adjusting members, the docking block is arranged between the two traction bars, the docking end faces of the traction bar and the docking block are inclined surfaces, and the inclinations of the two inclined surfaces are consistent.

[0015] From the above solution, it can be seen that by integrating innovative elements such as traction bars and docking blocks into the horizontal installation bar, the flexibility and accuracy of the installation process are significantly enhanced. The inclined design of the traction bar and the docking block ensures the stability and smoothness of the adjustment process, and effectively improves the horizontal alignment of the bus duct housing and copper bar. Combined with the optimization of fasteners and other structures, this solution not only greatly improves the stability and safety of the bus duct connection, but also simplifies the installation process, shortens the construction time, and has excellent overall performance, providing new ideas and technical support for the design of bus duct connectors.

[0016] Preferably, a transverse slide groove is opened transversely inside the strip body, the transverse slide groove matches the traction bar, a longitudinal slide groove is opened longitudinally in the center of the transverse slide groove, the longitudinal slide groove matches the docking block, an extrusion column is opened at the end of the longitudinal slide groove, an adjustment groove is opened on the surface of the extrusion column, the adjustment groove is connected with the longitudinal slide groove, and one end of the docking block matches the adjustment groove.

[0017] From the above scheme, it can be seen that the cleverly designed horizontal and longitudinal grooves in the strip body, as well as the matching traction bars and docking blocks, achieve precise adjustment and stable fixation during installation. The setting of the extrusion column and the adjustment slot further enhances the adjustment flexibility and stability of the docking block, ensures the high-precision horizontal alignment of the bus duct housing and the copper bar, and improves the stability and safety of the bus duct connection. It also simplifies the installation process and improves the construction efficiency, bringing significant improvements and optimizations to the design and application of bus duct connectors.

[0018] Preferably, the clamping member also includes a pressure block, a fixing ring and a traction rocker arm, the pressure block is located on the inner side of the matching groove, one end of a sliding column is connected to the pressure block, and the opposite end of another sliding column is connected to the inner side surface of the installation inner groove, one sliding column is fixedly connected to three push rods, another sliding column is movably connected to the three push rods, and the six push rods are alternately movably connected to two sliding columns, the fixing ring is arranged on the inner bottom surface of the installation inner groove, and the fixing ring is located between the two sliding columns, the traction rocker arm is arranged inside the fixing ring, the center of the traction rocker arm is connected to the movable shaft of the fixing ring, and the two ends of the traction rocker arm are respectively connected to the movable shafts of the two sliding columns.

[0019] It can be seen from the above scheme that the innovative design of the pressure block, fixed ring and traction swing rod in the clamping part significantly enhances the stability and uniformity of the clamping process. The ingenious connection between the pressure block and the sliding column, as well as the alternating active connection between the push rod and the sliding column, ensures the uniform clamping of the copper busbar by the conductive plate and the insulating plate. The coordination of the fixed ring and the traction swing rod further enhances the flexibility and accuracy of the clamping force adjustment. This scheme not only greatly improves the reliability and safety of the bus duct connection, but also optimizes the installation process, providing new technological breakthroughs and practical value for the design of bus duct connectors.

[0020] Preferably, wide-diameter slide grooves are provided at both ends of the strip body, a narrow-diameter slide groove is provided at one end of the wide-diameter slide groove, and a connecting spring is provided at the connecting position of the wide-diameter slide groove and the narrow-diameter slide groove.

[0021] From the above scheme, it can be seen that the wide-diameter and narrow-diameter slide grooves designed at both ends of the strip body, as well as the clever use of the connecting springs, significantly improve the flexibility and stability of installation and adjustment. The wide-diameter slide groove facilitates the rapid positioning and preliminary fixation of the installation bolts, while the narrow-diameter slide groove enhances the tightening effect after installation. The setting of the connecting spring not only provides the necessary buffer and adjustment space, but also ensures the close fit of various components during the installation process. This scheme not only simplifies the installation process and improves construction efficiency, but also significantly enhances the stability and safety of the bus duct connection, providing new innovative ideas for the design of bus duct connectors.

[0022] Preferably, the adjusting member includes a narrow column, a wide column and a reserved groove. The narrow column and the wide column are an integrated structure. The narrow column matches the narrow diameter slide groove, and the wide column matches the wide diameter slide groove. The connecting spring is sleeved on the surface of the narrow column. The reserved groove is opened at the middle end of the wide column, and the reserved groove corresponds to the traction bar.

[0023] From the above scheme, it can be seen that the innovative design of the narrow column, wide column and reserved groove in the adjustment part perfectly matches the wide-diameter slide groove, narrow-diameter slide groove and connecting spring of the strip body, significantly improving the installation adjustment accuracy and stability of the bus duct connector. The matching of the narrow column with the narrow-diameter slide groove, and the wide column with the wide-diameter slide groove ensures precise positioning and stable support during the installation process. The connection between the connecting spring and the narrow column, and the correspondence between the reserved groove and the traction bar, further enhance the flexibility of installation and the convenience of adjustment. This scheme not only simplifies the installation process, but also significantly improves the reliability and safety of the bus duct connection.

[0024] Preferably, a limit slider is installed on the side surface of the traction bar, and the limit slider is connected to the side surface of the reserved groove in a limit position.

[0025] It can be seen from the above scheme that accurate positioning and stable fixation during installation are achieved through the limiting connection between the limiting slider installed on the side surface of the traction bar and the side surface of the reserved groove. This design not only enhances the stability and accuracy of the traction bar during adjustment, but also avoids the dislocation or damage of components caused by improper operation. Combined with other innovative elements, such as narrow columns, wide columns, wide-diameter slides, narrow-diameter slides and connecting springs, this scheme significantly improves the installation efficiency, stability and safety of the bus duct connector, and provides a strong guarantee for the reliability and safety of the power transmission system.

[0026] Preferably, two disassembly bolts 2 are provided on the side surface of the casting mold component 2, and the casting mold component 2 is connected to the horizontality mounting bar through the disassembly bolts 2. A disassembly bolt 1 is provided in the center of the casting mold component 1, and the casting mold component 1 is connected to the horizontality mounting bar through the disassembly bolt 1.

[0027] It can be seen from the above scheme that convenient connection and disassembly with the horizontal mounting strip is achieved by disassembly bolts 1 and 2 respectively provided on casting mold assembly 1 and casting mold assembly 2. This design not only simplifies the installation and disassembly process of the mold assembly and improves the construction efficiency, but also ensures the stability of the mold assembly during the casting process. At the same time, the flexible application of disassembly bolts facilitates the subsequent inspection and maintenance of the bus duct connection, significantly improves the practicality and reliability of the bus duct connector, and provides strong support for the stable operation of the power transmission system.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. A prefabricated bus duct connector ensures uniform and close contact between the copper busbar, the conductive plate and the insulating plate through precise alignment and clamping of the bus duct connection, assembly of the casting mold assembly 1 and the casting mold assembly 2, and the design of the clamping piece in the fastener, thereby avoiding the problems of poor contact and increased resistance.

[0030] 2. A prefabricated bus duct connector simplifies the installation process through the design of prefabricated connectors and mold components. Construction workers only need to align the ends of the two sections of bus duct and insert the connector, and then assemble the mold components and pour the power compound grease to complete the connection.

[0031] 3. A prefabricated bus duct connector, in which the bus duct connection is filled with electrical composite grease. This material has good chemical corrosion resistance and can protect the bus duct connection from environmental corrosion. At the same time, the electrical composite grease can reduce the contact resistance of the bus duct connection, reduce power loss and heat generation, thereby extending the service life of the bus duct. In addition, the design of the horizontal mounting strip increases the stability of the connection between the two shells, further enhancing the durability and reliability of the bus duct connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the overall split structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the assembly structure of the casting mold component 1 and the casting mold component 2 of the present invention;

[0035] Figure 4 It is a schematic diagram of the overall structure of the fastener of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the present invention in a non-clamping state;

[0037] Figure 6 It is a schematic diagram of the structure of the horizontal installation bar of the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the clamping member of the present invention;

[0039] Figure 8 It is a schematic diagram of the clamping state structure of the present invention;

[0040] Fig. 9 It is a plane cross-sectional view of the adjusting member of the present invention;

[0041] Fig.10 It is a schematic diagram of the connection of the present invention being sealed by composite electrical grease.

[0042] In the figure: 1, shell; 2, copper bar; 3, conductive plate; 4, insulating plate; 5, casting mold component 1; 51, disassembly bolt 1; 6, casting mold component 2; 61, disassembly bolt 2; 7, fastener; 71, vertical strip; 72, movable side groove; 73, installation inner groove; 74, matching notch; 75, clamping piece; 751, push rod; 752, extrusion block; 753, sliding column; 754, pressure block; 755, fixing ring; 756, traction pendulum Rod; 8, positioning horizontal groove; 9, horizontal installation strip; 91, strip plate body; 911, horizontal slide groove; 912, longitudinal slide groove; 913, extrusion column; 914, adjustment slot; 915, wide-diameter slide groove; 916, narrow-diameter slide groove; 917, connecting spring; 92, adjustment piece; 921, narrow column; 922, wide column; 923, reserved slot; 924, warning strip; 93, installation bolt; 94, traction bar; 941, limit slider; 95, docking block. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 10 The present invention provides a prefabricated bus duct connector, and the technical solution is as follows:

[0045] A prefabricated busbar connector, comprising a housing 1 and three copper bars 2 at the end of the housing 1, each group of copper bars 2 is provided with a conductive plate 3 and an insulating plate 4 on both sides, a casting mold assembly 1 5 is matched between the two housings 1, a casting mold assembly 2 6 is installed on one side of the casting mold assembly 1 5, a fastener 7 is fixedly installed in the center of the inner side wall of the casting mold assembly 1 5, positioning transverse grooves 8 are provided on both side surfaces of the housing 1, and horizontal mounting strips 9 are installed in the center of the side elevations of the casting mold assembly 2 6 and the casting mold assembly 1 5, and the horizontal mounting strips 9 match the positioning transverse grooves 8, and the fastener 7 includes a vertical strip 71 and a clamping member 75, the vertical strip 71 movably runs through the center of the conductive plate 3 and the insulating plate 4, the clamping member 75 is located inside the vertical strip 71, and the clamping member 75 includes six push-pull holes. Rod 751, extrusion block 752 and two sliding columns 753, the extrusion block 752 is arranged on the side surfaces of the two ends of the push rod 751, the sliding column 753 is installed inside the vertical strip 71, the push rod 751 is sleeved on the surface of the two sliding columns 753, and the two sliding columns 753 are controlled to move in the positive and negative directions respectively through the assembly of the casting mold component 1 5 and the casting mold component 2 6. The six push rods 751 are equidistantly displaced after being pulled, and the conductive plate 3 and the insulating plate 4 are pressed and in tight contact with the copper bus 2. The assembly of the casting mold component 1 5 and the casting mold component 2 6 forms a mold cavity with an open upper end. The casting mold component 1 5 is a side U-shaped structure with an open groove on the upper surface. The casting mold component 2 6 is a straight plate structure. The sizes of the casting mold component 1 5 and the casting mold component 2 6 match.

[0046] In this embodiment, an electric composite grease solution is loaded into the mold cavity. After cooling and forming, the casting mold component 1 5 and the casting mold component 2 6 are removed, and the levelness mounting bar 9 remains in place. The levelness mounting bar 9 is used to connect the two shells 1. The cooled and formed electric composite grease is filled in the connection between the two sections of the bus duct. The solidified electric composite grease is integrally formed with the shells 1 on both sides, which can not only reduce the contact resistance at the connection of the bus duct, but also the electric composite grease has good chemical corrosion resistance, which can protect the bus duct connection from environmental corrosion and extend the service life of the equipment. In addition, the assembly of the copper busbar 2, the conductive plate 3 and the insulating plate 4 is located in the center of the solidified electric composite grease. The two sides of the conductive plate 3 are respectively subjected to uniform extrusion force from the conductive plate 3 and the insulating plate 4, and there is no need to use bolts to open holes in the copper busbar 2, which effectively increases the contact area and improves the current transmission efficiency.

[0047] As an embodiment of the present invention, refer to Figure 1 - Figure 3The fastener 7 also includes a movable side groove 72, an installation inner groove 73 and a matching notch 74. The movable side groove 72 runs through the side surface of the vertical strip 71 from left to right. The movable side groove 72 is provided with three groups. One end of the vertical strip 71 is bolted to the horizontal mounting strip 9 of the casting mold assembly 5. The matching notch 74 is opened at the other end of the vertical strip 71. The installation inner groove 73 is opened inside the vertical strip 71. The movable side groove 72, the installation inner groove 73 and the matching notch 74 are connected.

[0048] In this embodiment, before installation, the fastener 7 is bolted to the casting mold assembly 5. When the casting mold assembly 5 is installed at the connection between the two sections of the bus duct, it is convenient for the copper bus 2 to smoothly enter the sandwich area formed by the conductive plate 3 and the insulating plate 4, and the displacement of the conductive plate 3 and the insulating plate 4 is controlled by the movement of the clamping member 75.

[0049] As an embodiment of the present invention, refer to Figure 3 The horizontality mounting strip 9 includes a strip body 91 and mounting bolts 93. The strip body 91 is mounted in the center of the side elevations of the casting mold assembly 2 6 and the casting mold assembly 1 5. The mounting bolts 93 are arranged at both ends of the strip body 91. The two strip bodies 91 are connected to the positioning transverse groove 8 through the mounting bolts 93. An adjusting piece 92 is arranged on one side of the mounting bolt 93 of the casting mold assembly 2 6, and two adjusting pieces 92 are correspondingly installed on one side of the mounting bolt 93.

[0050] In this embodiment, the two ends of the horizontal mounting strip 9 of the casting mold component 1 5 only have mounting bolts 93. When the mounting bolts 93 of the casting mold component 2 6 are connected to the corresponding positioning transverse groove 8, the mounting bolts 93 of the casting mold component 1 5 are then connected to the corresponding positioning transverse groove 8 to complete the installation of the casting mold component 1 5 and the casting mold component 2 6 at the bus duct connection.

[0051] As an embodiment of the present invention, refer to Figure 3 and Figure 4 The horizontal mounting strip 9 also includes a traction bar 94 and a docking block 95. One end of the traction bar 94 passes through the two adjusting members 92. The docking block 95 is arranged between the two traction bars 94. The docking end surfaces of the traction bar 94 and the docking block 95 are inclined surfaces, and the inclinations of the two inclined surfaces are consistent.

[0052] In this embodiment, when the mounting bolts 93 of the casting mold assembly 6 are connected to the bolt grooves of the corresponding positioning transverse grooves 8, the adjusting member 92 of the casting mold assembly 6 is squeezed by the inner plane of the positioning transverse grooves 8. Through the squeezing force, the two traction bars 94 move toward the middle and contact with the docking block 95. By utilizing the guiding effect of the inclined surface, the docking block 95 slides outward along the longitudinal slide groove 912 to control the displacement of the docking block 95.

[0053] As an embodiment of the present invention, refer to Figure 5 and Figure 6 A transverse slide groove 911 is opened transversely inside the strip body 91, and the transverse slide groove 911 matches the traction bar 94. A longitudinal slide groove 912 is opened longitudinally in the center of the transverse slide groove 911, and the longitudinal slide groove 912 matches the docking block 95. An extrusion column 913 is opened at the end of the longitudinal slide groove 912, and an adjustment groove 914 is opened on the surface of the extrusion column 913. The adjustment groove 914 is connected to the longitudinal slide groove 912, and one end of the docking block 95 matches the adjustment groove 914.

[0054] In this embodiment, as the docking block 95 is displaced, it moves along the adjustment slot 914, and when the casting mold assembly 2 6 is installed, the extrusion column 913 is used to push one end of the clamping member 75.

[0055] As an embodiment of the present invention, refer to Figure 7 The clamping member 75 also includes a pressure block 754, a fixing ring 755 and a traction swing rod 756. The pressure block 754 is located on the inner side of the matching groove 74. One end of a sliding column 753 is connected to the pressure block 754, and the opposite end of the other sliding column 753 is connected to the inner side surface of the mounting inner groove 73. One sliding column 753 is fixedly connected to three push rods 751, and another sliding column 753 is movably connected to these three push rods 751, and the six push rods 751 are alternately movably connected to two sliding columns 753. The fixing ring 755 is arranged on the inner bottom surface of the mounting inner groove 73, and the fixing ring 755 is located between the two sliding columns 753. The traction swing rod 756 is arranged inside the fixing ring 755. The center of the traction swing rod 756 is connected to the movable shaft of the fixing ring 755, and the two ends of the traction swing rod 756 are respectively connected to the movable shafts of the two sliding columns 753.

[0056] In this embodiment, six push rods 751 are grouped in pairs, and each group of two adjacent push rods 751 corresponds to a movable side groove 72. The extrusion blocks 752 installed on the two push rods 751 of the group are relatively positioned, and are respectively used to extrude and push the conductive plate 3 and the insulating plate 4. A group of sliding columns 753 is fixedly connected to three push rods 751 of different groups, and the three push rods 751 are movably connected to another group of sliding columns 753. The installation method of the other three different groups of push rods 751 is similar. The installation position of the fixed ring 755 is staggered with the movable side groove 72, and the two ends of the traction rocker 756 are connected to the movable shafts of the two sliding columns 753 to control the displacement of the two sliding columns 753 to be equal and in opposite directions.

[0057] As an embodiment of the present invention, refer to Fig. 9A wide-diameter slide groove 915 is provided at both ends of the strip body 91, a narrow-diameter slide groove 916 is provided at one end of the wide-diameter slide groove 915, and a connecting spring 917 is provided at the connecting position of the wide-diameter slide groove 915 and the narrow-diameter slide groove 916.

[0058] In this embodiment, the movable displacement of the adjusting member 92 is controlled by the size difference between the wide-diameter slide groove 915 and the narrow-diameter slide groove 916 .

[0059] As an embodiment of the present invention, refer to Figure 8 - Fig.10 The adjusting member 92 includes a narrow column 921, a wide column 922 and a reserved groove 923. The narrow column 921 and the wide column 922 are an integrated structure. The narrow column 921 matches the narrow diameter slide groove 916, and the wide column 922 matches the wide diameter slide groove 915. The connecting spring 917 is sleeved on the surface of the narrow column 921. The reserved groove 923 is opened at the middle end of the wide column 922, and the reserved groove 923 corresponds to the traction bar 94.

[0060] In this embodiment, one end of the wide column 922 contacts the inner plane of the positioning transverse groove 8. Only when the wide column 922 is completely squeezed into the wide diameter slide groove 915, the limiting slider 941 can be separated from the limiting groove set on one side of the reserved groove 923. The reserved groove 923 has a sufficient width. When the limiting slider 941 is separated from the limiting groove, the traction bar 94 can slide left and right unimpeded, and the protruding part of the traction bar 94 in the bolt groove of the mounting bolt 93 will not hinder the mounting bolt 93.

[0061] As an embodiment of the present invention, refer to Figure 3 and Fig. 9 A limiting slider 941 is installed on the side surface of the traction bar 94, and the limiting slider 941 is limitedly connected to the side surface of the reserved groove 923.

[0062] In this embodiment, the limiting slider 941 has a sufficient length, and when the wide column 922 is not completely received in the wide-diameter sliding groove 915 , it will still be engaged and connected with the side surface of the reserved groove 923 .

[0063] As an embodiment of the present invention, refer to Figure 1 - Figure 3 Two disassembly bolts 61 are provided on the side surface of the casting mold component 6, and the casting mold component 6 is connected to the horizontal mounting bar 9 through the disassembly bolts 61. A disassembly bolt 51 is provided in the center of the casting mold component 5, and the casting mold component 5 is connected to the horizontal mounting bar 9 through the disassembly bolt 51.

[0064] In this embodiment, the casting mold assembly 1 5 and the casting mold assembly 2 6 can be removed by removing the disassembly bolt 2 61 and the disassembly bolt 1 51, and one end of the fastener 7 is connected to the casting mold assembly 1 5 and the level mounting strip 9 through the disassembly bolt 1 51. When the disassembly bolt 2 61 and the disassembly bolt 1 51 are removed, both ends of the fastener 7 are fitted and connected with the level mounting strip 9. The fastener 7 and the level mounting strip 9 are both made of insulating materials. The connection between the two sections of the bus duct is composed of a copper bus 2, a conductive plate 3, an insulating plate 4, a level mounting strip 9 and an electrical composite grease. A warning strip 924 is provided at the outer end of the narrow column 921, and a matching movable groove is opened in the adjacent narrow column 921. When the bus duct connection is deformed during subsequent use, the connection between the warning strip 924 and the matching movable groove will change, and the fault can be judged intuitively without measurement.

[0065] Working principle: The copper bars 2 of the two sections of bus duct are aligned with each other and then inserted into the inner side of the casting mold assembly 5, so that the copper bar 2 is located between the conductive plate 3 and the insulating plate 4. The casting mold assembly 2 6 is assembled on one side of the casting mold assembly 5. First, check whether the outer shells 1 of the two sections of bus duct are horizontally aligned. Secondly, the conductive plate 3 and the insulating plate 4 corresponding to the copper bar 2 are evenly clamped. Finally, the casting mold assembly 1 5 and the casting mold assembly 2 6 are assembled to form a mold cavity with an upper opening. The mixed electric composite grease solution is poured into the mold cavity. After cooling and shaping, the mold is disassembled and the bus duct connection is closed.

[0066] Specifically, align the copper bars 2 of the two sections of the bus duct with each other, and plug them in along the openings on both sides of the casting mold component 5 until the corresponding positioning transverse grooves 8 match and dock with the two ends of the horizontal mounting strips 9. At this time, the three copper bars 2 are respectively inserted between the corresponding conductive plates 3 and insulating plates 4, and then the matching connection of the positioning transverse grooves 8 and the horizontal mounting strips 9 is used to install the casting mold component 2 6 on one side of the casting mold component 5, press the casting mold component 2 6, and try to make the horizontal mounting strip 9 at this position completely match the positioning transverse grooves 8. If the outer shells 1 of the two sections of the bus duct are in a non-horizontally aligned state, a narrow column 921 cannot be completely retracted into the inner side of the wide-diameter slide groove 915, and the corresponding limit slider 941 cannot be completely separated from the limit groove of the reserved groove 923, and the traction bar 94 is in a locked state, then the traction bar The protruding part at one end of the rod 94 will not slip, and the installation bolt 93 cannot be installed, which means that the installation connection of the bus duct does not meet the requirements, and the operation should be performed again according to the installation guide; if the outer shells 1 of the two sections of the bus duct are in a horizontally aligned state, when the casting mold assembly 2 6 is pressed, by adjusting the elastic force of the slot 914, the two narrow columns 921 are retracted inward along the wide diameter slide groove 915, and the limiting slider 941 will be separated from the limiting groove of the reserved groove 923. When the mounting bolt 93 is installed, one end of the traction bar 94 in the bolt hole groove will slide along the horizontal slide groove 911 after being subjected to the force, and the installation of the casting mold assembly 2 6 is successfully completed. The casting mold assembly 1 5 is then installed through the corresponding mounting bolts 93, and the casting mold assembly 1 5 and the casting mold assembly 2 6 are assembled.

[0067] During the assembly of the casting mold assembly 1 5 and the casting mold assembly 2 6, the extrusion column 913 passes through the matching notch 74 and is connected to the pressure block 754. After being squeezed, the pressure block 754 moves along the inner side of the installation inner groove 73, and the corresponding sliding column 753 is synchronously displaced. The three push rods 751 fixedly connected to the sliding column 753 are displaced in the same direction. The traction swing rod 756 swings after being subjected to the traction force. The axial position of the traction swing rod 756 is fixed, and the other sliding column 753 is equidistantly displaced in the opposite direction. The three push rods 751 fixedly connected to the sliding column 753 are synchronously displaced in the opposite direction. The two push rods 751 corresponding to the inner side of each movable side groove 72 respectively squeeze the conductive plate 3 and the insulating plate 4 through the squeezing block 752. The extrusion force applied to the conductive plate 3 and the insulating plate 4 is equivalent, so that the two sides of the copper busbar 2 are subjected to uniform force, thereby completing the clamping operation of the copper busbar 2.

[0068] After the clamping operation of the copper busbar 2 is completed, the casting mold component 2 6 is fitted with the side edge of the casting mold component 1 5. The assembly of the casting mold component 1 5 and the casting mold component 2 6 forms a mold cavity with an upper opening. The copper busbar 2, the conductive plate 3 and the insulating plate 4 are located in the center of the mold cavity. The electric composite grease solution is poured into the mold cavity. After it is cooled and formed, the disassembly bolts 2 61 and the disassembly bolts 1 51 are removed respectively. The casting mold component 1 5 and the casting mold component 2 6 are separated from the corresponding horizontal mounting strips 9, and the demolding is completed. The connection of the bus duct is sealed by the solidified electric composite grease. After the casting mold component 1 5 and the casting mold component 2 6 are disassembled, the horizontal mounting strips 9 remain in place to increase the stability of the connection between the two shells 1.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated bus duct connector, comprising a housing (1), a copper bar (2), a conductive plate (3) and an insulating plate (4), characterized in that: A casting mold assembly (5) is matched between the two shells (1), a casting mold assembly (6) is installed on one side of the casting mold assembly (5), a fastener (7) is fixedly installed in the center of the inner side wall of the casting mold assembly (5), positioning transverse grooves (8) are opened on both side surfaces of the shell (1), and a horizontal installation strip (9) is installed in the center of the side elevations of the casting mold assembly (6) and the casting mold assembly (5), the fastener (7) includes a vertical strip (71) and a clamping piece (75), the vertical strip (71) movably passes through the center of the conductive plate (3) and the insulating plate (4), and the clamping piece (75) is located inside the vertical strip (71). The clamping member (75) comprises a push rod (751), a small extrusion block (752) and a sliding column (753). The small extrusion block (752) is arranged on the side surfaces of both ends of the push rod (751). The sliding column (753) is installed inside the vertical strip (71). By assembling the casting mold component 1 (5) and the casting mold component 2 (6), the two sliding columns (753) are controlled to move in positive and negative directions respectively. The six push rods (751) are equidistantly displaced after being pulled. The conductive plate (3) and the insulating plate (4) are pressed and tightly contacted with the copper busbar (2). The assembly of the casting mold component 1 (5) and the casting mold component 2 (6) forms a mold cavity with an upper end opening.

2. The prefabricated bus duct connector according to claim 1, characterized in that: The fastener (7) further comprises a movable side groove (72), an installation inner groove (73) and a matching notch (74); the movable side groove (72) penetrates the side surface of the vertical strip (71) from left to right; three groups of movable side grooves (72) are provided; one end of the vertical strip (71) is bolted to the horizontal installation strip (9) of the casting mold assembly (5); the matching notch (74) is provided at the other end of the vertical strip (71); the installation inner groove (73) is provided inside the vertical strip (71); the movable side groove (72), the installation inner groove (73) and the matching notch (74) are connected.

3. The prefabricated bus duct connector according to claim 1, characterized in that: The horizontality mounting strip (9) comprises a strip body (91) and mounting bolts (93); the strip body (91) is mounted at the center of the side elevations of the second casting mold component (6) and the first casting mold component (5); the mounting bolts (93) are arranged at both ends of the strip body (91); the two strip bodies (91) are connected to the positioning transverse groove (8) via the mounting bolts (93); an adjusting member (92) is arranged on one side of the mounting bolt (93) of the second casting mold component (6); and two adjusting members (92) are correspondingly installed on one side of the mounting bolt (93).

4. The prefabricated bus duct connector according to claim 3, characterized in that: The horizontality installation strip (9) further comprises a traction bar (94) and a docking block (95), one end of the traction bar (94) passes through the two adjustment members (92), the docking block (95) is arranged between the two traction bars (94), the docking end surfaces of the traction bar (94) and the docking block (95) are inclined surfaces, and the inclinations of the two inclined surfaces are consistent.

5. The prefabricated bus duct connector according to claim 4, characterized in that: A transverse sliding groove (911) is transversely provided inside the strip body (91), and the transverse sliding groove (911) matches the traction bar (94). A longitudinal sliding groove (912) is longitudinally provided in the center of the transverse sliding groove (911), and the longitudinal sliding groove (912) matches the docking block (95). An extrusion column (913) is provided at the end of the longitudinal sliding groove (912), and an adjustment groove (914) is provided on the surface of the extrusion column (913), and the adjustment groove (914) is connected to the longitudinal sliding groove (912), and one end of the docking block (95) matches the adjustment groove (914).

6. The prefabricated bus duct connector according to claim 2, characterized in that: The clamping member (75) further comprises a pressure block (754), a fixing ring (755) and a traction swing rod (756), wherein the pressure block (754) is located on the inner side of the matching notch (74), one end of one of the sliding columns (753) is connected to the pressure block (754), and the opposite end of the other sliding column (753) is connected to the inner side surface of the mounting inner groove (73), one of the sliding columns (753) is fixedly connected to the three push rods (751), and the other sliding column (753) is fixedly connected to the three push rods (751). 51) are movably connected, and the six push rods (751) are alternately movably connected with the two sliding columns (753), the fixed ring (755) is arranged on the inner bottom surface of the mounting inner groove (73), and the fixed ring (755) is located between the two sliding columns (753), the traction swing rod (756) is arranged inside the fixed ring (755), the center of the traction swing rod (756) is connected to the movable shaft of the fixed ring (755), and the two ends of the traction swing rod (756) are respectively connected to the movable shafts of the two sliding columns (753).

7. The prefabricated bus duct connector according to claim 4, characterized in that: The strip plate body (91) is provided with wide-diameter slide grooves (915) at both ends, a narrow-diameter slide groove (916) is provided at one end of the wide-diameter slide groove (915), and a connecting spring (917) is provided at the connecting position between the wide-diameter slide groove (915) and the narrow-diameter slide groove (916).

8. The prefabricated bus duct connector according to claim 7, characterized in that: The adjusting member (92) comprises a narrow column (921), a wide column (922) and a reserved groove (923); the narrow column (921) and the wide column (922) are an integrated structure; the narrow column (921) matches the narrow-diameter slide groove (916); the wide column (922) matches the wide-diameter slide groove (915); the connecting spring (917) is sleeved on the surface of the narrow column (921); the reserved groove (923) is arranged at the middle end of the wide column (922); and the reserved groove (923) corresponds to the traction bar (94).

9. The prefabricated bus duct connector according to claim 8, characterized in that: A limiting slider (941) is installed on the side surface of the traction bar (94), and the limiting slider (941) is connected to the side surface of the reserved groove (923) in a limiting manner.

10. The prefabricated bus duct connector according to claim 1, characterized in that: The side surface of the second casting mold component (6) is provided with two disassembly bolts (61), and the second casting mold component (6) is connected to the level installation strip (9) through the disassembly bolts (61). The center of the first casting mold component (5) is provided with a disassembly bolt (51), and the first casting mold component (5) is connected to the level installation strip (9) through the disassembly bolt (51).

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