A kind of slide rail busbar capable of freely arranging electrical cabinets under power

Abstract

The present invention belongs to the technical field of busbars, and in particular, relates to a slide rail busbar capable of freely arranging an electrical cabinet with power, comprising a busbar assembly and a plug-in box assembly, wherein the busbar assembly is used to provide power to the electrical cabinet, and the plug-in box assembly is used to establish an electrical connection between the busbar assembly and the electrical cabinet. The busbar assembly in the present invention connects the first copper bar, the second copper bar, the third copper bar and the fourth copper bar in parallel in each live wire assembly to achieve that four plug-in box assemblies in parallel rather than in series can be plugged in the busbar assembly at the same time, ensuring that the plug-in box assembly in the busbar assembly that is electrically connected to the busbar assembly will not experience current or voltage fluctuations when the plug-in box assembly is disassembled or installed.

Description

Technical Field

[0001] The invention belongs to the technical field of busbars, and in particular relates to a slide rail type busbar capable of freely arranging electrical cabinets under power. Background Art

[0002] A sliding rail busbar is an electrical component commonly used in data centers and other electronic equipment systems, which allows electricity to be transmitted through sliding rails inside the bus duct, such as patent application number 201611129237.5.

[0003] Generally, multiple plug-in boxes are arranged in a single bus duct. These plug-in boxes are arranged in series. This series arrangement of the plug-in boxes will cause current or voltage fluctuations when some of the plug-in boxes are inserted or removed from the bus duct, which is not conducive to protecting the electronic equipment in the electrical cabinet that is electrically connected to the bus duct through the plug-in boxes.

[0004] The present invention redesigns the bus duct and reduces the influence of the plug-in box on other plug-in boxes in electrical connection when the plug-in box is removed or inserted by connecting a plurality of copper bars in parallel therein. Summary of the invention

[0005] Based on this, it is necessary to provide a sliding rail busbar in which electrical cabinets can be freely arranged with power on, in order to address the problems existing in the current bus duct. The busbar assembly in the present invention realizes that four plug-in box assemblies in parallel rather than in series can be simultaneously plugged into the busbar assembly by connecting the first copper bar, the second copper bar, the third copper bar and the fourth copper bar in parallel in each live wire assembly, thereby ensuring that the plug-in box assembly in the busbar assembly that is electrically connected to the busbar assembly will not experience current or voltage fluctuations when the plug-in box assembly is removed or installed, thereby protecting the plug-in box assembly electrically connected to the busbar assembly from damage due to large fluctuations in current and voltage, and thereby protecting the equipment in the electrical cabinet electrically connected to the busbar assembly through the plug-in box assembly from damage due to large fluctuations in current and voltage. The present invention realizes blind insertion of the plug-in box assembly into the busbar assembly by cooperating with the positioning assembly slidably arranged in the slot at the lower end of the busbar duct and the plug-in box assembly, ensuring that the plug-in box assembly still has high efficiency and accuracy in plugging with the busbar assembly after the four wired assemblies in the busbar assembly are arranged with the first copper bar, the second copper bar, the third copper bar and the fourth copper bar. The electric plug assembly of the plug-in box assembly in the present invention has an effective arc extinguishing function when it is plugged in or separated from the first copper bar, the second copper bar, the third copper bar or the fourth copper bar of the wired assembly, further protecting the busbar assembly from fire caused by the generation of strong electric arcs when the plug-in box assembly is disassembled, and has a good safety protection function.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A slide rail busbar capable of freely arranging an electrical cabinet with power supply, used for providing power to electronic equipment in the electrical cabinet, comprising:

[0008] A busbar assembly is used to provide power for an electrical cabinet, the busbar assembly comprising a busbar trough, a slot is provided on the lower end surface of the busbar trough, a ground wire assembly is arranged on the top of the busbar trough, two pairs of live wire assemblies symmetrically distributed on both sides of the slot are arranged in the busbar trough, the two live wire assemblies in each pair are vertically spaced apart, the live wire assembly comprises a first copper bar and a second copper bar and a third copper bar and a fourth copper bar which are evenly divided into upper and lower layers and arranged in parallel, the first copper bar and the second copper bar of the upper layer are aligned one by one with the third copper bar and the fourth copper bar of the lower layer, and the copper bars with the same number in the two live wire assemblies on the same layer are located on the same side.

[0009] A plug-in box assembly is used to establish an electrical connection between a busbar assembly and an electrical cabinet, the plug-in box assembly comprising a box body, a plug-in column is arranged on the top of the box body, an electric contact cooperating with a grounding assembly is slidably arranged in a circular groove at the upper end of the plug-in column, two pairs of hanging ears corresponding to the live wire assemblies are arranged on the plug-in column, the hanging ears are provided with an electric plug assembly cooperating with the first copper bar, the second copper bar, the third copper bar, or the fourth copper bar in the corresponding live wire assembly and having an arc extinguishing function, the center distance of the electric plug assemblies on the two hanging ears located on the same layer is equal to the center distance of the copper bars with the same number in the two live wire assemblies on the same layer.

[0010] In one embodiment, the ground wire assembly includes a square tubular copper sleeve parallel to the bus duct, a ground wire copper bar parallel to the copper sleeve is welded on the upper surface of the copper sleeve, the ground wire copper bar is fixed to the top of the bus duct through a first mounting seat, a first electric plug is provided at one end of the ground wire copper bar, the first electric plug is plugged into and matched with the corresponding ground wire copper bar in the adjacent bus duct assembly, a docking groove is provided on the end surface of the bus duct for facilitating the insertion of the first electric plug into the adjacent bus duct, a plurality of circular holes evenly distributed along its length are provided at the lower end of the copper sleeve, copper columns electrically connected to the ground wire copper bar are vertically slidably arranged in the circular holes, the upper ends of the copper columns are respectively provided with limit blocks to prevent them from escaping from the circular holes, and the lower ends are provided with long strip-shaped first electric contact plates that cooperate with the electric contacts in the plug-in box assembly, a first spring is provided on the copper column to reset it, and the upper and lower ends of the first spring are respectively connected to the lower surface of the copper sleeve and the first electric contact plate.

[0011] In one embodiment, the ground wire assembly includes a second electric contact plate in the shape of a long strip, a ground wire copper busbar is welded on the upper surface of the second electric contact plate, the ground wire copper busbar is fixed to the top of the bus duct through a first mounting base, a first electric plug is provided at one end of the ground wire copper busbar, the first electric plug is plugged into and cooperates with the corresponding ground wire copper busbar in the adjacent bus duct, and a docking groove is provided on the end surface of the bus duct to facilitate the insertion of the first electric plug into the adjacent bus duct.

[0012] In one embodiment, the ground wire assembly includes a third electric contact plate with a wave shape that is consistent with the length direction of the bus duct and has elasticity. The upper parts of both sides of each wave crest of the third electric contact plate are equipped with two support rollers for clamping and supporting it. The support rollers are fixed to the top of the bus duct through a bracket. Ground wire copper bars are welded to both ends of the third electric contact plate. The ground wire copper bar is fixed to the top of the bus duct through a first mounting seat. A first electric plug is provided on the ground wire copper bar at one end of the third electric contact plate. The first electric plug is plugged into the corresponding ground wire copper bar in the adjacent bus assembly. A docking groove is provided on the end surface of the bus duct to facilitate the insertion of the first electric plug into the adjacent bus duct.

[0013] In one of the embodiments, the first copper bar, the second copper bar, the third copper bar and the fourth copper bar in the wire assembly are fixed to the inner wall of the bus duct through a second mounting base, and the two ends of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar are respectively connected through a fourth electric contact plate, and a second electric plug is provided on one of the fourth electric contact plates, and the second electric plug passes through the docking groove on the end face of the bus duct and is plugged into and matched with the corresponding fourth electric contact plate in the adjacent bus assembly.

[0014] In one of the embodiments, a second spring is disposed in the circular groove at the upper end of the plug-in column, and two ends of the second spring are respectively connected to the electric contact and the inner wall of the circular groove.

[0015] In one of the embodiments, a positioning assembly is slidably provided in the slot at the bottom of the bus duct along its length direction, which enables the four electrical plug assemblies in the plug-in box assembly to be accurately blind-plugged into the four copper bars with the same numbers in the four wired assemblies.

[0016] In one of the embodiments, the positioning assembly includes a first slide seat, the first slide seat is slidably arranged in a slot at the bottom of the bus duct, a first guide seat is arranged at the lower end of the first slide seat, a first locking bolt which is threadedly connected to the first guide seat and cooperates with the outer wall of the bus duct, a second torsion wheel is arranged at the end of the first locking bolt, a second slide seat is horizontally slidable in the first guide seat along a direction perpendicular to the length of the bus duct, a first screw rod which is threadedly connected to the second slide seat is rotatably arranged in the first guide seat, a first torsion wheel is arranged at one end of the first screw, a vertical rod is arranged on the second slide seat, the vertical rod moves in the first slide groove on the first slide seat and the sliding amplitude of the vertical rod in the first slide groove is equal to the center distance between two copper bars on the same layer in the wire assembly, and two pairs of cross rods are symmetrically arranged on the vertical rod, one pair of The two cross bars are respectively located above the two layers of copper bars in the wire assembly, and the ends of the cross bars are provided with positioning strips that cooperate with the ends of the hanging ears. The center distance between the two positioning strips on the same layer is greater than the center distance between the two copper bars with the same number on the same layer in the two wire assemblies on the same layer. The side wall of the first guide seat is provided with a second guide seat, and a third slide seat is vertically slidable in the second guide seat, and the sliding amplitude of the third slide seat in the second guide seat is equal to the center distance of the two wire assemblies on the same side. A second screw rod threadedly connected to the third slide seat is rotatably provided in the second guide seat, and a third torsion wheel is provided at the end of the second screw rod. The third slide seat is connected to a U-shaped frame that cooperates with the lower sides of the two hanging ears on the same layer through a connecting rod, and the U-shaped frame moves between above the upper wire assembly and above the lower wire assembly.

[0017] In one embodiment, the electrical plug assembly includes two N-type insulating sockets with flared openings on both sides at the lower end, the insulating sockets are arranged on corresponding hanging ears, and the insulating sockets are provided with N-type electrical contacts that are plugged and matched with the first copper bar, the second copper bar, the third copper bar, or the fourth copper bar in the wire assembly. The lower end of the electrical contact is higher than the lower end of the insulating socket. The two lower ends of the insulating sockets are hinged with arc-extinguishing plates that match the side walls of the first copper bar, the second copper bar, the third copper bar, or the fourth copper bar in the wire assembly through round pins, and a vortex spring is connected between the round pin and the insulating socket.

[0018] In one of the embodiments, the two bus ducts are connected via a connecting sleeve, and the connecting sleeve is fixedly connected to the two bus ducts via a plurality of second locking bolts.

[0019] The beneficial effects of the present invention are:

[0020] 1. The busbar assembly in the present invention realizes that four plug-in box assemblies in parallel rather than in series can be simultaneously plugged into the busbar assembly by connecting the first copper bar, the second copper bar, the third copper bar and the fourth copper bar in parallel in each live wire assembly, ensuring that the plug-in box assembly in the busbar assembly that is electrically connected to the busbar assembly will not experience large current or voltage fluctuations when the plug-in box assembly is disassembled or installed, protecting the plug-in box assembly electrically connected to the busbar assembly from damage due to large fluctuations in current and voltage, and freely arranging the electrical cabinet with power on without causing damage to the equipment in the electrical cabinet that is electrically connected to the busbar assembly through the plug-in box assembly due to large fluctuations in current and voltage.

[0021] 2. The present invention realizes blind insertion of the plug-in box assembly into the busbar assembly by cooperating with the positioning assembly slidably arranged in the slot at the lower end of the busbar duct, thereby ensuring that the plug-in box assembly can still be plugged into the busbar assembly with high efficiency and accuracy after the four wired assemblies in the busbar assembly are arranged with the first copper bar, the second copper bar, the third copper bar and the fourth copper bar.

[0022] 3. The electric plug assembly of the plug-in box assembly in the present invention has an effective arc extinguishing function when it is plugged in or separated from the first copper bar, the second copper bar, the third copper bar, or the fourth copper bar with the wire assembly, further protecting the busbar assembly from fire caused by strong electric arcs when the plug-in box assembly is disassembled, and has a good safety protection function. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the connection between the busbar components and the plug-in box components in the present invention.

[0024] Figure 2 It is a schematic diagram of the plug-in box assembly in the present invention.

[0025] Figure 3 It is a cross-sectional view of the structural arrangement inside the bus duct of the busbar assembly in the present invention.

[0026] Figure 4 It is a schematic diagram of the bus duct of the busbar assembly in the present invention.

[0027] Figure 5 It is a schematic structural diagram of the first scheme of the ground wire assembly of the busbar assembly in the present invention.

[0028] Figure 6 It is a schematic structural diagram of the second scheme of the ground wire assembly of the busbar assembly in the present invention.

[0029] Figure 7 It is a schematic structural diagram of the third scheme of the ground wire assembly of the busbar assembly in the present invention.

[0030] Figure 8 It is a schematic diagram of the structure of the live wire assembly of the busbar assembly in the present invention.

[0031] Fig. 9 It is a cross-sectional view of the cooperation between the second electric plug and the fourth electric contact plate of the two busbar assemblies in the present invention.

[0032] Fig.10 It is a cross-sectional view of the cooperation between the first electric plug and the ground copper busbar of the two busbar assemblies in the present invention.

[0033] Fig.11 It is a longitudinal section view of the connection box assembly of the present invention and the ground wire assembly of the first solution.

[0034] Fig.12 It is a cross-sectional view of the connection box assembly of the present invention and the ground wire assembly of the first solution.

[0035] Fig.13 It is a longitudinal section view of the connection box assembly of the present invention and the ground wire assembly of the second scheme.

[0036] Fig.14 It is a cross-sectional view of the connection box assembly of the present invention and the ground wire assembly of the second scheme.

[0037] Fig.15 It is a longitudinal section view of the connection box assembly of the present invention and the ground wire assembly of the third scheme.

[0038] Fig.16 It is a cross-sectional view of the connection box assembly of the present invention and the ground wire assembly of the third scheme.

[0039] Fig.17 It is a schematic diagram of an electric plug assembly of a plug box assembly in the present invention.

[0040] Fig.18 These are two cross-sectional views of the electrical plug assembly and the wire assembly in the present invention.

[0041] Fig.19 It is a cross-sectional view of the positioning slat driving structure of the positioning assembly in the present invention.

[0042] Fig. 20 It is a cross-sectional view of the U-shaped frame driving structure of the positioning assembly in the present invention.

[0043] Fig.21 It is a top-sectional view of the cooperation between the U-shaped frame of the positioning assembly and the plug-in box assembly in the present invention.

[0044] Fig. 22 It is a schematic diagram of four states of cooperation among the positioning assembly, the plug-in box assembly and the busbar assembly in the present invention.

[0045] Fig.23 It is a schematic diagram of the state of the ground wire assembly of the third solution and the electrical contacts in the plug-in box assembly.

[0046] Name of the label in the figure:

[0047] 100, busbar assembly; 101, busbar duct; 102, slot; 103, docking slot;

[0048] 200, ground wire assembly; 201, first mounting seat; 202, ground wire copper bar; 203, first electric plug; 204, copper sleeve; 205, copper column; 206, limit block; 207, first electric contact plate; 208, first spring; 209, second electric contact plate; 210, third electric contact plate; 211, bracket; 212, support roller;

[0049] 300, wire assembly; 301, second mounting base; 302, first copper bar; 303, second copper bar; 304, third copper bar; 305, fourth copper bar; 306, fourth electric contact plate; 307, second electric plug;

[0050] 400, positioning assembly; 401, first slide; 402, first slide slot; 403, second slide; 404, first guide; 405, first screw; 406, first torsion wheel; 407, first locking bolt; 408, second torsion wheel; 409, vertical rod; 410, horizontal rod; 411, positioning slat; 412, second guide; 413, third slide; 414, connecting rod; 415, U-shaped frame; 416, second screw; 417, third torsion wheel;

[0051] 500, plug-in box assembly; 501, plug-in column; 502, hanging ear; 503, electric contact; 504, second spring; 505, box body;

[0052] 600, electric plug assembly; 601, insulating socket; 602, electric contact; 603, arc extinguishing plate; 605, round pin; 606, vortex spring;

[0053] 701, connecting sleeve; 702, second locking bolt. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0055] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] like Figure 1-21 As shown, a slide rail busbar capable of freely arranging an electrical cabinet with power supply is used to provide power to electronic equipment in the electrical cabinet, comprising:

[0058] A busbar assembly 100 is used to provide power for an electrical cabinet, the busbar assembly 100 includes a busbar duct 101, a slot 102 is provided on the lower end surface of the busbar duct 101, a ground wire assembly 200 is provided at the top of the busbar duct 101, two pairs of wire assemblies 300 symmetrically distributed on both sides of the slot 102 are provided in the busbar duct 101, the two wire assemblies 300 in each pair are vertically spaced, the first copper bar 302 and the second copper bar 303 and the third copper bar 304 and the fourth copper bar 305 are evenly divided into upper and lower layers and arranged in parallel in the wire assembly 300, and the first copper bar 302 and the second copper bar 303 of the upper layer are aligned one by one with the third copper bar 304 and the fourth copper bar 305 of the lower layer, and the copper bars with the same number in the two wire assemblies 300 on the same layer are located on the same side.

[0059] The plug-in box assembly 500 is used to establish an electrical connection between the busbar assembly 100 and the electrical cabinet. The plug-in box assembly 500 includes a box body 505, and a plug-in column 501 is arranged on the top of the box body 505. An electric contact 503 that cooperates with the ground wire assembly 200 is slidably arranged in the upper circular groove of the plug-in column 501. Two pairs of hanging ears 502 that correspond to the wire assemblies 300 are arranged on the plug-in column 501. The hanging ears 502 are provided with an electric plug assembly 600 that cooperates with the first copper bar 302 or the second copper bar 303 or the third copper bar 304 or the fourth copper bar 305 in the corresponding wire assembly 300 and has an arc extinguishing function. The center distance of the electric plug assemblies 600 on the two hanging ears 502 located on the same layer is equal to the center distance of the copper bars with the same number in the two wire assemblies 300 on the same layer.

[0060] In a further embodiment, Figure 5 , 10 As shown in , 11 and 12, the ground wire assembly 200 includes a square tubular copper sleeve 204 parallel to the bus duct 101, and a ground wire copper bar 202 parallel to the bus duct is welded on the upper surface of the copper sleeve 204. The ground wire copper bar 202 is fixed to the top of the bus duct 101 through a first mounting seat 201. One end of the ground wire copper bar 202 is provided with a first electric plug 203, and the first electric plug 203 is plugged with the corresponding ground wire copper bar 202 in the adjacent bus assembly 100. The end surface of the bus duct 101 is provided with a pair of plugs that facilitate the first electric plug 203 to be inserted into the adjacent bus duct 101. The connecting groove 103, the lower end of the copper sleeve 204 is provided with a plurality of circular holes evenly distributed along its length direction, and a copper column 205 electrically connected to the ground copper bus 202 is vertically slidably arranged in the circular hole, and the upper ends of the copper columns 205 are respectively provided with limit blocks 206 to prevent them from escaping from the circular holes, and the lower ends are provided with long strips of first electrical contact plates 207 that cooperate with the electrical contacts 503 in the plug-in box assembly 500, and the copper columns 205 are sheathed with a first spring 208 for resetting them, and the upper and lower ends of the first spring 208 are respectively connected to the lower surface of the copper sleeve 204 and the first electrical contact plate 207.

[0061] In a further embodiment, Figure 6 , 10 As shown in FIGS. 13 and 14 , the ground wire assembly 200 includes a second electric contact plate 209 in a long strip shape, a ground wire copper bus 202 is welded on the upper surface of the second electric contact plate 209, the ground wire copper bus 202 is fixed to the top of the bus duct 101 through a first mounting seat 201, a first electric plug 203 is provided at one end of the ground wire copper bus 202, the first electric plug 203 is plugged into and matched with the corresponding ground wire copper bus 202 in the adjacent bus assembly 100, and a docking groove 103 is provided on the end surface of the bus duct 101 for facilitating the insertion of the first electric plug 203 into the adjacent bus duct 101.

[0062] In a further embodiment, Figure 7 , 10 As shown in Figures 15 and 16, the ground wire assembly 200 includes a third electric contact plate 210 with a wave shape that is consistent with the length direction of the bus duct 101 and has elasticity. The upper parts of both sides of each crest of the third electric contact plate 210 are equipped with two support rollers 212 for clamping and supporting it. The support rollers 212 are fixed to the top of the bus duct 101 through brackets 211. Ground copper bars 202 are welded to both ends of the third electric contact plate 210. The ground copper bar 202 is fixed to the top of the bus duct 101 through a first mounting seat 201. A first electric plug 203 is provided on the ground copper bar 202 at one end of the third electric contact plate 210. The first electric plug 203 is plugged with the corresponding ground copper bar 202 in the adjacent bus assembly 100. A docking groove 103 is provided on the end surface of the bus duct 101 to facilitate the insertion of the first electric plug 203 into the adjacent bus duct 101.

[0063] In a further embodiment, Figure 8 , 9 As shown, the first copper bar 302, the second copper bar 303, the third copper bar 304 and the fourth copper bar 305 in the wire assembly 300 are fixed to the inner wall of the bus duct 101 through the second mounting base 301, and the two ends of the first copper bar 302, the second copper bar 303, the third copper bar 304 and the fourth copper bar 305 are respectively connected through the fourth electric contact plate 306, and a second electric plug 307 is provided on one of the fourth electric contact plates 306, and the second electric plug 307 passes through the docking groove 103 on the end face of the bus duct 101 and is plugged into and matched with the corresponding fourth electric contact plate 306 in the adjacent bus assembly 100.

[0064] In a further embodiment, Figure 2 , 12 As shown, a second spring 504 is disposed in the circular groove at the upper end of the plug post 501 , and two ends of the second spring 504 are respectively connected to the electric contact 503 and the inner wall of the circular groove.

[0065] In a further embodiment, Figure 1 , 11 As shown in FIGS. 13 and 15 , a positioning assembly 400 is slidably provided in the slot 102 at the bottom of the bus duct 101 along its length direction so that the four electric plug assemblies 600 in the plug-in box assembly 500 can be accurately blind-plugged into the four copper bars with the same number in the four wire assemblies 300 .

[0066] In a further embodiment, Fig.12 , 14, 16, 19, and 20, the positioning assembly 400 includes a first slide 401, the first slide 401 is slidably set in the slot 102 at the bottom of the bus duct 101, the lower end of the first slide 401 is provided with a first guide seat 404, the first guide seat 404 is threadedly connected with a first locking bolt 407 that cooperates with the outer wall of the bus duct 101, the end of the first locking bolt 407 is provided with a second torsion wheel 408, the first guide seat 404 is horizontally rotated in a direction perpendicular to the length of the bus duct 101 A second slide seat 403 is provided for sliding, a first screw rod 405 which is threadedly connected to the second slide seat 403 is rotatably provided in the first guide seat 404, a first torsion wheel 406 is provided at one end of the first screw rod 405, a vertical rod 409 is provided on the second slide seat 403, the vertical rod 409 moves in the first slide groove 402 on the first slide seat 401, and the sliding amplitude of the vertical rod 409 in the first slide groove 402 is equal to the center distance between the two copper bars on the same layer in the wire assembly 300, and two pairs of cross bars are symmetrically provided on the vertical rod 409 410, the two cross bars 410 in each pair are respectively located above the two layers of copper bars in the wire assembly 300, the ends of the cross bars 410 are provided with positioning strips 411 that cooperate with the ends of the hanging ears 502, the center distance between the two positioning strips 411 located on the same layer is greater than the center distance between the two copper bars with the same number in the same layer of the two wire assemblies 300 on the same layer, the side wall of the first guide seat 404 is provided with a second guide seat 412, and a third slide seat 413 is vertically slidable in the second guide seat 412, and the third slide seat 413 is provided. 13 The sliding amplitude in the second guide seat 412 is equal to the center distance between the two wire-carrying assemblies 300 on the same side, and a second screw rod 416 threadedly connected to the third slide seat 413 is rotatably arranged in the second guide seat 412, and a third torsion wheel 417 is arranged at the end of the second screw rod 416. The third slide seat 413 is connected to a U-shaped frame 415 cooperating with the lower sides of two hanging ears 502 on the same layer through a connecting rod 414, and the U-shaped frame 415 moves between above the upper wire-carrying assembly 300 and above the lower wire-carrying assembly 300.

[0067] In a further embodiment, Fig.17 , 18As shown, the electric plug assembly 600 includes two N-type insulating sockets 601 with flared openings on both sides at the lower end, the insulating sockets 601 are arranged on the corresponding hanging ears 502, and an N-type electric contact 602 is arranged in the insulating socket 601 for plugging and matching with the first copper bar 302 or the second copper bar 303 or the third copper bar 304 or the fourth copper bar 305 in the wire assembly 300. The lower end of the electric contact 602 is higher than the lower end height of the insulating socket 601, and the two lower ends of the insulating socket 601 are hinged with arc-extinguishing plates 603 that match the side walls of the first copper bar 302 or the second copper bar 303 or the third copper bar 304 or the fourth copper bar 305 in the wire assembly 300 through round pins 605, and a vortex spring 606 is connected between the round pin 605 and the insulating socket 601.

[0068] In a further embodiment, Figure 1 , 9 As shown in FIG. 10 , the two bus ducts 101 are connected via a connecting sleeve 701 , and the connecting sleeve 701 is fixedly connected to the two bus ducts 101 via a plurality of second locking bolts 702 .

[0069] The busbar assembly 100 in the present invention realizes that four plug-in box assemblies 500 in parallel rather than in series can be simultaneously plugged into the busbar assembly 100 by connecting the first copper bar 302, the second copper bar 303, the third copper bar 304 and the fourth copper bar 305 in parallel in each wire assembly 300, thereby ensuring that the plug-in box assembly 500 in the busbar assembly 100 that is electrically connected to the busbar assembly 100 will not experience current or voltage fluctuations when the plug-in box assembly 500 is removed or installed, thereby protecting the plug-in box assembly 500 electrically connected to the busbar assembly 100 from damage due to large fluctuations in current and voltage, and thereby protecting the equipment in the electrical cabinet that is electrically connected to the busbar assembly 100 through the plug-in box assembly 500 from damage due to large fluctuations in current and voltage. The present invention realizes blind insertion of the plug-in box assembly 500 into the busbar assembly 100 by cooperating with the positioning assembly 400 slidably disposed in the slot 102 at the lower end of the busbar 101 and the plug-in box assembly 500, ensuring that the plug-in box assembly 500 still has high efficiency and accuracy in plugging with the busbar assembly 100 after the four wired assemblies 300 in the busbar assembly 100 are arranged with the first copper bar 302, the second copper bar 303, the third copper bar 304 and the fourth copper bar 305. The electric plug assembly 600 of the plug-in box assembly 500 in the present invention has an effective arc extinguishing function when it is plugged in or separated from the first copper bar 302, the second copper bar 303, the third copper bar 304 or the fourth copper bar 305 of the wired assembly 300, further protecting the busbar assembly 100 from fire caused by the generation of strong electric arcs when the plug-in box assembly 500 is disassembled, and has a good safety protection function.

[0070] The operation process of the present invention is as follows:

[0071] In the present invention, the first scheme of the ground wire assembly 200 with the first electric contact plate 207 and the second scheme of the ground wire assembly 200 with the second electric contact plate 209 are suitable for installing the plug-in box assembly 500 at any position of the bus duct 101, and the third scheme of the ground wire assembly 200 with the wavy third electric contact plate 210 can only install the plug-in box assembly 500 at a specific position of the bus duct 101.

[0072] like Fig. 22 As shown in (a), the positions of the U-shaped frame 415 and the four positioning strips 411 in the positioning assembly 400 are adjusted so that the four plug connector assemblies in the plug-in box assembly 500 can be accurately blind-plugged onto the first copper bars 302 of the four wired assemblies 300 respectively.

[0073] First, loosen the first locking bolt 407 through the second twist wheel 408, move the positioning assembly 400 to a suitable position, and then re-tighten the first locking bolt 407 to lock the positioning assembly 400, rotate the first twist wheel 406, and the first twist wheel 406 drives the four positioning slats 411 to move horizontally to the extreme position through the first screw 405, the second slide seat 403, the vertical rod 409 and the two pairs of cross rods 410, so that the two first copper bars 302 in the two wired assemblies 300 on the same layer are located within the range between the two positioning slats 411 on the corresponding layer.

[0074] Then, the third twist wheel 417 is rotated, and the third twist wheel 417 drives the U-shaped frame 415 to move to its highest limit position through the second screw 416, the third slide 413 and the connecting rod 414 without interfering with the ground wire assembly 200, ensuring that when the two uppermost hanging ears 502 in the plug-in box assembly 500 are in contact with the U-shaped frame 415, the lower ends of the four electric plug assemblies 600 on the four hanging ears 502 are slightly higher than the first copper bus 302 and the second copper bus 303 on the same layer.

[0075] Next, keeping the ear 502 on the plug-in column 501 of the plug-in box assembly 500 parallel to the bus duct 101, the plug-in column 501 of the plug-in box assembly 500 is inserted upward into the bus duct 101 through the slot 102, so that the two uppermost ears 502 on the plug-in column 501 abut against the U-shaped frame 415, to prevent the plug-in box assembly 500 from being inserted upward into the bus duct 101 and causing the ear 502 and the electric plug assembly 600 on the ear 502 to swing horizontally 90 degrees and enter the position between two vertically adjacent wired components 300 or two layers of copper bars of the same wired component 300, and the electric contact 503 at the upper end of the plug-in column 501 is pressed against the trough of the first electric contact plate 207 or the second electric contact plate 209 or the third electric contact plate 210 in the ground wire assembly 200 under the action of the second spring 504.

[0076] Then, rotate the plug-in box assembly 500 90 degrees so that the four hanging ears 502 on the plug-in column 501 reach above the four first copper bars 302 respectively. Under the limiting action of the corresponding side positioning strips 411, the electric plugs on the hanging ears 502 are located just above the first copper bars 302. Then, pull the box body 505 of the plug-in box assembly 500 downward so that the electric plug assembly 600 on the four hanging ears 502 on the plug-in column 501 is accurately inserted into the corresponding first copper bars 302 and the electric contact piece 602 in the electric plug assembly 600 forms a good electrical contact with the first copper bar 302. The two arc-extinguishing plates 603 at the lower end of the insulating sleeve 601 in the electric plug assembly 600 swing up under the action of the first copper bar 302 and compress the vortex spring 606. The upward swing of the arc-extinguishing plate 603 can effectively block the arc generated between the electric contact piece 602 and the first copper bar 302. When the plug-in box assembly 500 moves downward and the electrical plug assembly 600 is inserted into the first copper bus 302 , the electrical contact 503 at the upper end of the plug-in column 501 moves upward under the action of the second spring 504 and continues to maintain good electrical contact with the first electrical contact plate 207 or the second electrical contact plate 209 or the third electrical contact plate 210 in the ground wire assembly 200 .

[0077] like Fig. 22 As shown in (b), the positions of the U-shaped frame 415 and the four positioning strips 411 in the positioning assembly 400 are adjusted so that the four plug connector assemblies in the plug-in box assembly 500 can be accurately blind-plugged onto the second copper bars 303 of the four wired assemblies 300 respectively.

[0078] First, loosen the first locking bolt 407 through the second twist wheel 408, move the positioning assembly 400 to a suitable position, and then re-tighten the first locking bolt 407 to lock the positioning assembly 400, rotate the first twist wheel 406, and the first twist wheel 406 drives the four positioning slats 411 to move horizontally to another extreme position through the first screw 405, the second slide seat 403, the vertical rod 409 and the two pairs of cross rods 410, so that the two second copper bars 303 in the two wired assemblies 300 on the same layer are located within the range between the two positioning slats 411 on the corresponding layer.

[0079] Then, the third twist wheel 417 is rotated, and the third twist wheel 417 drives the U-shaped frame 415 to move to its highest limit position through the second screw 416, the third slide 413 and the connecting rod 414 without interfering with the ground wire assembly 200, ensuring that when the two uppermost hanging ears 502 in the plug-in box assembly 500 are in contact with the U-shaped frame 415, the lower ends of the four electric plug assemblies 600 on the four hanging ears 502 are slightly higher than the first copper bus 302 and the second copper bus 303 on the same layer.

[0080] Next, keeping the ear 502 on the plug-in column 501 of the plug-in box assembly 500 parallel to the bus duct 101, the plug-in column 501 of the plug-in box assembly 500 is inserted upward into the bus duct 101 through the slot 102, so that the two uppermost ears 502 on the plug-in column 501 abut against the U-shaped frame 415, to prevent the plug-in box assembly 500 from being inserted upward into the bus duct 101 and causing the ear 502 and the electric plug assembly 600 on the ear 502 to swing horizontally 90 degrees and enter the position between two vertically adjacent wired components 300 or two layers of copper bars of the same wired component 300, and the electric contact 503 at the upper end of the plug-in column 501 is pressed against the trough of the first electric contact plate 207 or the second electric contact plate 209 or the third electric contact plate 210 in the ground wire assembly 200 under the action of the second spring 504.

[0081] Then, rotate the plug-in box assembly 500 90 degrees so that the four hanging ears 502 on the plug-in column 501 reach above the four second copper bars 303 respectively. Under the limiting action of the corresponding side positioning strips 411, the electric plugs on the hanging ears 502 are located just above the second copper bars 303. Then, pull the box body 505 of the plug-in box assembly 500 downward so that the electric plug assembly 600 on the four hanging ears 502 on the plug-in column 501 is accurately inserted into the corresponding second copper bars 303 and the electric contact piece 602 in the electric plug assembly 600 forms a good electrical contact with the second copper bar 303. The two arc-extinguishing plates 603 at the lower end of the insulating sleeve 601 in the electric plug assembly 600 swing up under the action of the second copper bar 303 and compress the vortex spring 606. The upward swing of the arc-extinguishing plate 603 can effectively block the arc generated between the electric contact piece 602 and the second copper bar 303. When the plug-in box assembly 500 moves downward and the electrical plug assembly 600 is inserted into the second copper bus 303 , the electrical contact 503 at the upper end of the plug-in column 501 moves upward under the action of the second spring 504 and continues to maintain good electrical contact with the first electrical contact plate 207 , the second electrical contact plate 209 , or the third electrical contact plate 210 in the ground wire assembly 200 .

[0082] like Fig. 22 As shown in (c), the positions of the U-shaped frame 415 and the four positioning strips 411 in the positioning assembly 400 are adjusted so that the four plug connector assemblies in the plug-in box assembly 500 can be accurately blind-plugged onto the third copper bars 304 of the four wire assemblies 300 .

[0083] First, loosen the first locking bolt 407 through the second twist wheel 408, move the positioning assembly 400 to a suitable position, and then re-tighten the first locking bolt 407 to lock the positioning assembly 400, rotate the first twist wheel 406, and the first twist wheel 406 drives the four positioning slats 411 to move horizontally to the extreme position through the first screw 405, the second slide seat 403, the vertical rod 409 and the two pairs of cross rods 410, so that the two third copper bars 304 in the two wired assemblies 300 on the same layer are located within the range between the two positioning slats 411 on the corresponding layer.

[0084] Then, the third twist wheel 417 is rotated, and the third twist wheel 417 drives the U-shaped frame 415 to move to its lowest limit position through the second screw 416, the third slide 413 and the connecting rod 414 without interfering with the ground wire assembly 200, ensuring that when the two uppermost hanging ears 502 in the plug-in box assembly 500 are in contact with the U-shaped frame 415, the lower ends of the four electric plug assemblies 600 on the four hanging ears 502 are slightly higher than the third copper busbar 304 and the fourth copper busbar 305 on the same layer.

[0085] Next, keeping the ear 502 on the plug-in column 501 of the plug-in box assembly 500 parallel to the bus duct 101, the plug-in column 501 of the plug-in box assembly 500 is inserted upward into the bus duct 101 through the slot 102, so that the two uppermost ears 502 on the plug-in column 501 abut against the U-shaped frame 415, to prevent the plug-in box assembly 500 from being inserted upward into the bus duct 101 and causing the ear 502 and the electric plug assembly 600 on the ear 502 to swing horizontally 90 degrees and enter the space above the third copper bus 304 and the fourth copper bus 305 in the live wire assembly 300. The electric contact 503 at the upper end of the plug-in column 501 is in electrical contact with the trough of the first electric contact plate 207, the second electric contact plate 209 or the third electric contact plate 210 in the ground wire assembly 200 under the action of the second spring 504.

[0086] Then, the plug-in box assembly 500 is rotated 90 degrees so that the four hanging ears 502 on the plug-in column 501 reach above the four third copper bars 304 respectively. Under the limiting action of the corresponding side positioning strips 411, the electric plugs on the hanging ears 502 are located just above the third copper bars 304. Then, the box body 505 of the plug-in box assembly 500 is pulled downward so that the electric plug assembly 600 on the four hanging ears 502 on the plug-in column 501 is accurately inserted into the corresponding third copper bars 304 and the electric contact piece 602 in the electric plug assembly 600 forms a good electrical contact with the third copper bar 304. The two arc-extinguishing plates 603 at the lower end of the insulating sleeve 601 in the electric plug assembly 600 swing up under the action of the third copper bar 304 and compress the vortex spring 606. The upward swing of the arc-extinguishing plate 603 can effectively block the arc generated between the electric contact piece 602 and the third copper bar 304. When the plug-in box assembly 500 moves downward and the electrical plug assembly 600 is inserted into the third copper bus 304 , the electrical contact 503 at the upper end of the plug-in column 501 moves upward under the action of the second spring 504 and continues to maintain good electrical contact with the first electrical contact plate 207 or the second electrical contact plate 209 or the third electrical contact plate 210 in the ground wire assembly 200 .

[0087] like Fig. 22 As shown in (d), the positions of the U-shaped frame 415 and the four positioning strips 411 in the positioning assembly 400 are adjusted so that the four plug connector assemblies in the plug-in box assembly 500 can be accurately blind-plugged onto the fourth copper bars 305 of the four wire assemblies 300 .

[0088] First, loosen the first locking bolt 407 through the second twist wheel 408, move the positioning assembly 400 to a suitable position, and then re-tighten the first locking bolt 407 to lock the positioning assembly 400, rotate the first twist wheel 406, and the first twist wheel 406 drives the four positioning slats 411 to move horizontally to the extreme position through the first screw 405, the second slide seat 403, the vertical rod 409 and the two pairs of cross rods 410, so that the two fourth copper bars 305 in the two wired assemblies 300 on the same layer are located within the range between the two positioning slats 411 on the corresponding layer.

[0089] Then, the third twist wheel 417 is rotated, and the third twist wheel 417 drives the U-shaped frame 415 to move to its lowest limit position through the second screw 416, the third slide 413 and the connecting rod 414 without interfering with the ground wire assembly 200, ensuring that when the two uppermost hanging ears 502 in the plug-in box assembly 500 are in contact with the U-shaped frame 415, the lower ends of the four electric plug assemblies 600 on the four hanging ears 502 are slightly higher than the third copper busbar 304 and the fourth copper busbar 305 on the same layer.

[0090] Next, keeping the ear 502 on the plug-in column 501 of the plug-in box assembly 500 parallel to the bus duct 101, the plug-in column 501 of the plug-in box assembly 500 is inserted upward into the bus duct 101 through the slot 102, so that the two uppermost ears 502 on the plug-in column 501 abut against the U-shaped frame 415, to prevent the plug-in box assembly 500 from being inserted upward into the bus duct 101 and causing the ear 502 and the electric plug assembly 600 on the ear 502 to swing horizontally 90 degrees and enter the space above the third copper bus 304 and the fourth copper bus 305 in the live wire assembly 300. The electric contact 503 at the upper end of the plug-in column 501 is in electrical contact with the trough of the first electric contact plate 207, the second electric contact plate 209 or the third electric contact plate 210 in the ground wire assembly 200 under the action of the second spring 504.

[0091] Then, the plug-in box assembly 500 is rotated 90 degrees so that the four hanging ears 502 on the plug-in column 501 reach above the four fourth copper bars 305 respectively. Under the limiting action of the corresponding side positioning strips 411, the electric plugs on the hanging ears 502 are located just above the fourth copper bars 305. Then, the box body 505 of the plug-in box assembly 500 is pulled downward so that the electric plug assembly 600 on the four hanging ears 502 on the plug-in column 501 is accurately inserted into the corresponding fourth copper bars 305 and the electric contact piece 602 in the electric plug assembly 600 forms a good electrical contact with the fourth copper bar 305. The two arc-extinguishing plates 603 at the lower end of the insulating sleeve 601 in the electric plug assembly 600 swing up under the action of the fourth copper bar 305 and compress the vortex spring 606. The upward swing of the arc-extinguishing plate 603 can effectively block the arc generated between the electric contact piece 602 and the fourth copper bar 305. When the plug-in box assembly 500 moves downward and the electrical plug assembly 600 is inserted into the fourth copper bus 305 , the electrical contact 503 at the upper end of the plug-in column 501 moves upward under the action of the second spring 504 and continues to maintain good electrical contact with the first electrical contact plate 207 or the second electrical contact plate 209 or the third electrical contact plate 210 in the ground wire assembly 200 .

[0092] After the plug-in box is installed, the positioning assembly 400 can be moved to a position where the plug-in box assembly 500 is not installed.

[0093] like Fig.23As shown, when the electric contact 503 of the plug-in box assembly 500 is pressed and electrically contacted with the trough of the wavy third electric contact plate 210 in the third scheme ground wire assembly 200 under the action of the second spring 504, the trough of the third electric contact plate 210 will be elastically deformed and move upward to a certain extent under the action of the electric contact 503, and the two sides of the trough of the third electric contact plate 210 will move upward to a certain extent through the two supporting rollers 212 on the corresponding sides, ensuring that the third electric contact plate 210 is in good electrical contact with the electric contact 503. After the electric contact 503 is disengaged from the third electric contact plate 210 downward, the third electric contact plate 210 returns to its original state under the action of its own elastic force.

[0094] When the plug-in box assembly 500 needs to be removed from the bus duct 101, the plug-in box assembly 500 is pushed up so that the four electric plug assemblies 600 are separated from the first copper bar 302 or the second copper bar 303 or the third copper bar 304 or the fourth copper bar 305, and then the plug-in box assembly 500 is rotated 90 degrees so that the four hanging ears 502 drive the electric plug assembly 600 to separate from the wired assembly 300 and enter the range of the slot 102, and then the plug-in box assembly 500 can be removed downward.

[0095] When the electric plug assembly 600 is detached from the first copper bar 302 or the second copper bar 303 or the third copper bar 304 or the fourth copper bar 305, the two arc extinguishing plates 603 at the lower end of the insulating sleeve 601 of the electric plug swing down under the action of the vortex spring 606 and block the arc generated by the electric contact piece 602 and the first copper bar 302 or the second copper bar 303 or the third copper bar 304 or the fourth copper bar 305, thereby achieving the purpose of arc extinguishing and protecting the bus duct 101 from arc generation and fire.

Claims

1. A rail-type busbar capable of freely arranging an electrical cabinet with power, used to provide power for electronic equipment in the electrical cabinet, characterized in that: include: A busbar assembly, used to provide power for an electrical cabinet, the busbar assembly comprising a busbar duct, a slot is provided on the lower end surface of the busbar duct, a ground wire assembly is provided at the top of the busbar duct, two pairs of live wire assemblies symmetrically distributed on both sides of the slot are provided in the busbar duct, the two live wire assemblies in each pair are vertically spaced, the live wire assembly is provided with a first copper bar and a second copper bar and a third copper bar and a fourth copper bar evenly divided into upper and lower layers in parallel, the first copper bar and the second copper bar of the upper layer are aligned one by one with the third copper bar and the fourth copper bar of the lower layer, and the copper bars with the same number in the two live wire assemblies located on the same layer are located on the same side; A plug-in box assembly, used to establish an electrical connection between a busbar assembly and an electrical cabinet, the plug-in box assembly comprising a box body, a plug-in column is arranged on the top of the box body, an electric contact cooperating with a grounding assembly is slidably arranged in a circular groove at the upper end of the plug-in column, two pairs of hanging ears corresponding to the live wire assemblies are arranged on the plug-in column, the hanging ears are provided with an electric plug assembly cooperating with the first copper bar, the second copper bar, the third copper bar, or the fourth copper bar in the corresponding live wire assembly and having an arc extinguishing function, and the center distance of the electric plug assemblies on the two hanging ears located on the same layer is equal to the center distance of the copper bars with the same number in the two live wire assemblies on the same layer; The ground wire assembly comprises a square tubular copper sleeve parallel to the bus duct, a ground wire copper bar parallel to the copper sleeve is welded on the upper surface of the copper sleeve, the ground wire copper bar is fixed to the top of the bus duct through a first mounting seat, a first electric plug is arranged at one end of the ground wire copper bar, the first electric plug is plugged and matched with the corresponding ground wire copper bar in the adjacent bus duct assembly, a docking groove is provided on the end surface of the bus duct for facilitating the first electric plug to be inserted into the adjacent bus duct, a plurality of circular holes evenly distributed along the length direction thereof are arranged at the lower end of the copper sleeve, a copper column electrically connected to the ground wire copper bar is vertically slidably arranged in the circular hole, a limit block is respectively arranged at the upper end of the copper column to prevent it from escaping from the circular hole, and a long strip-shaped first electric contact plate matching with the electric contact in the plug-in box assembly is arranged at the lower end of the copper column, a first spring for resetting it is sleeved on the copper column, and the upper and lower ends of the first spring are respectively connected to the lower surface of the copper sleeve and the first electric contact plate; The ground wire assembly comprises a second electric contact plate in a long strip shape, and a ground wire copper bar is welded on the upper surface of the second electric contact plate; The ground wire assembly comprises an elastic wavy third electric contact plate which is consistent with the length direction of the bus duct, and the upper parts of both sides of each wave crest of the third electric contact plate are equipped with two supporting rollers for clamping and supporting it.

2. A rail-type busbar capable of freely arranging electrical cabinets under power according to claim 1, characterized in that: The ground copper bar is fixed to the top of the bus duct through a first mounting base. A first electrical plug is provided at one end of the ground copper bar. The first electrical plug is plugged into and matched with the corresponding ground copper bar in the adjacent bus assembly. A docking groove is provided on the end surface of the bus duct to facilitate the insertion of the first electrical plug into the adjacent bus duct.

3. The slide rail busbar capable of freely arranging electrical cabinets under power according to claim 1, characterized in that: The support roller is fixed to the top of the bus duct through a bracket, ground copper bars are welded to both ends of the third electric contact plate, and the ground copper bar is fixed to the top of the bus duct through a first mounting base, a first electric plug is provided on the ground copper bar at one end of the third electric contact plate, and the first electric plug is plugged into and matched with the corresponding ground copper bar in the adjacent bus assembly, and a docking groove is provided on the end surface of the bus duct for facilitating the insertion of the first electric plug into the adjacent bus duct.

4. A rail-type busbar capable of freely arranging electrical cabinets under power according to claim 2 or 3, characterized in that: The first copper bar, the second copper bar, the third copper bar and the fourth copper bar in the wire assembly are fixed to the inner wall of the bus duct through a second mounting seat, and the two ends of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar are respectively connected through fourth electric contact plates, and a second electric plug is provided on one of the fourth electric contact plates, and the second electric plug passes through the docking groove on the end face of the bus duct and is plugged into and matched with the corresponding fourth electric contact plate in the adjacent bus assembly.

5. The slide rail busbar capable of freely arranging electrical cabinets under power according to claim 1, characterized in that: A second spring is arranged in the circular groove at the upper end of the plug-in column, and two ends of the second spring are respectively connected to the electric contact and the inner wall of the circular groove.

6. The slide rail busbar capable of freely arranging electrical cabinets under power according to claim 1, characterized in that: A positioning assembly is slidably arranged in the slot at the bottom of the bus duct along its length direction, which enables the four electric plug assemblies in the plug-in box assembly to be accurately blind-plugged into the four copper bars with the same numbers in the four wire assemblies.

7. The slide rail busbar capable of freely arranging electrical cabinets under power according to claim 6, characterized in that: The positioning assembly includes a first slide seat, the first slide seat is slidably arranged in a slot at the bottom of the bus duct, a first guide seat is arranged at the lower end of the first slide seat, a first locking bolt which cooperates with the outer wall of the bus duct is threadedly connected to the first guide seat, a second torsion wheel is arranged at the end of the first locking bolt, a second slide seat is horizontally slidable in the first guide seat along a direction perpendicular to the length of the bus duct, a first screw rod which is rotatably arranged in the first guide seat and is threadedly connected to the second slide seat, a first torsion wheel is arranged at one end of the first screw, a vertical rod is arranged on the second slide seat, the vertical rod moves in the first slide slot on the first slide seat and the sliding amplitude of the vertical rod in the first slide slot is equal to the center distance between the two copper bars on the same layer in the wire assembly, two pairs of cross rods are symmetrically arranged on the vertical rod, and the two of the said The cross bars are respectively located above the two layers of copper bars in the wire assembly, and the ends of the cross bars are provided with positioning strips that cooperate with the ends of the hanging ears. The center distance between the two positioning strips located on the same layer is greater than the center distance between the two copper bars with the same number on the same layer in the two wire assemblies on the same layer. The side wall of the first guide seat is provided with a second guide seat, and a third slide seat is vertically slidable in the second guide seat, and the sliding amplitude of the third slide seat in the second guide seat is equal to the center distance of the two wire assemblies on the same side. A second screw rod threadedly connected to the third slide seat is rotatably provided in the second guide seat, and a third torsion wheel is provided at the end of the second screw rod. The third slide seat is connected to a U-shaped frame that cooperates with the lower sides of the two hanging ears on the same layer through a connecting rod, and the U-shaped frame moves between above the upper wire assembly and above the lower wire assembly.

8. The slide rail busbar capable of freely arranging electrical cabinets under power according to claim 1, characterized in that: The electric plug assembly includes two N-type insulating sockets with flared openings on both sides at the lower ends, the insulating sockets are arranged on corresponding hanging ears, and an N-type electric contact piece is arranged in the insulating socket for plugging and matching with the first copper bar, the second copper bar, the third copper bar, or the fourth copper bar in the live wire assembly, the lower end of the electric contact piece is higher than the lower end height of the insulating socket, and the two lower ends of the insulating socket are hinged with arc-extinguishing plates that match the side walls of the first copper bar, the second copper bar, the third copper bar, or the fourth copper bar in the live wire assembly through round pins, and a vortex spring is connected between the round pin and the insulating socket.

9. The slide rail busbar capable of freely arranging electrical cabinets under power according to claim 1, characterized in that: The two bus ducts are connected via a connecting sleeve, and the connecting sleeve is fixedly connected to the two bus ducts via a plurality of second locking bolts.

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