A kind of slide rail type small busbar and plug-in box

Abstract

The present invention belongs to the technical field of small busbars, and in particular, relates to a slide rail type small busbar and a plug-in box, including a busbar assembly and a plug-in box assembly, wherein the busbar assembly is used to connect a power source, and the plug-in box assembly is used to electrically connect the busbar assembly to a device load. In the present invention, the arc extinguishing assembly of the electrical connection assembly of the plug-in box assembly is located at the lower end of one branch of the insulating sleeve, which can block the arc generated between the first copper bar and the first electric contact during the process of the first electric contact being separated from the first copper bar. At the same time, the tooth angle of the arc extinguishing assembly end of the first electric contact can concentrate the generated arc within the insulating layer range in the middle of the arc extinguishing plate, and the other end of the first electric contact is shorter than the tooth angle end and is less likely to generate an arc relative to the tooth angle end, so that the arc extinguishing assembly has an effective arc extinguishing function.

Description

Technical Field

[0001] The invention belongs to the technical field of small busbars, and in particular relates to a slide rail type small busbar and a plug-in box. Background Art

[0002] The rail-type busbar is a power distribution system used in data centers and other electronic equipment. It consists of a series of copper busbar conductors, which are arranged in a circular manner to form a continuous space channel in the middle and a continuous slot at the bottom, which supports plugging in and taking power at any point. The design of the rail-type busbar allows the plug-in box to be installed below the bus duct, which is plug-and-play. The bus duct can be plugged in and out online without powering off. This design enables the rail-type busbar to have the characteristics of full-range and full-point access to branch circuits, support step-by-step implementation, continuation, expansion and reconstruction, and support on-demand and itemized procurement and deployment of components.

[0003] Advantages of the sliding rail type busbar The advantages of the sliding rail type busbar include small space occupation, strong and weak electricity separation area, arbitrary point access, intelligent management, nearby installation of plug-in boxes, overall beautiful symmetry, and convenient and simple operation and maintenance. These characteristics make the sliding rail type busbar particularly suitable for the needs of power distribution at the end of the data center cabinet. For example, the patent with application number 201910238666.3 introduces the entire busbar system.

[0004] The electrical contacts on the copper busbar in the sliding rail type busbar that match the plug-in box often oxidize or other conditions that affect power supply occur due to high temperature, resulting in higher resistance. The high resistance further causes high temperature to be generated at the electrical contacts. Currently, temperature measuring sheets are added near the electrical contacts to detect the temperature at the electrical contacts to prevent the generation of high temperature at the electrical contacts.

[0005] If a fault occurs in the plug-in box and the micro-breaker cannot turn off the load and the temperature of the electrical contacts is too high, it is generally necessary to shut down the main bus to prevent the temperature of the electrical contacts from continuing to rise. However, this will inevitably cause all equipment to lose power and cause unnecessary trouble. If the bus is powered on and the plug-in box cannot turn off the load, forcibly disconnecting the electrical connection between the plug-in box and the bus will cause an arc and fire to burn components.

[0006] The present invention designs a slide rail type small busbar and a plug-in box to solve the above problems. Summary of the invention

[0007] Based on this, it is necessary to provide a sliding rail type small busbar and a plug-in box to address the problems existing in the current small busbars. The present invention uses four polishing assemblies in the plug-in box assembly to polish the four first copper bars in the busbar assembly and then allows the four electrical connection assemblies to be inserted into the polished areas on the corresponding first copper bars, ensuring that the first electrical contacts in the electrical connection assembly can form good electrical contact with the corresponding first copper bars. When the first electrical contacts in the electrical connection assembly and the first copper bars are oxidized due to long-term contact with high temperature, the controller in the box body can control the start of the first motor to drive the polishing assembly to replace the electrical connection assembly to interact with the oxidized area on the first copper bar and effectively polish it, so that the electrical connection assembly can have good electrical contact with the first copper bar again, reducing the resistance between the first electrical contact in the electrical connection assembly and the first copper bar, and further avoiding high temperature and oxidation between the first copper bar and the first electrical contact. The blades on the synchronous belt in the grinding assembly of the plug-in box assembly in the present invention can effectively dissipate the heat of the first copper bar being polished. In addition, the blades on the synchronous belt in the grinding assembly can effectively dissipate the heat of the part of the first copper bar that is in electrical contact with the first electric contact in the electrical connection assembly under the drive of the second motor, so as to prevent the part of the first copper bar that is in electrical contact with the electrical connection assembly from generating high temperature, and delay the oxidation of the part of the first copper bar that is in electrical contact with the electrical connection assembly. The arc extinguishing assembly of the electrical connection assembly of the plug-in box assembly in the present invention, which is located at the lower end of one of the insulating sleeves, can block the arc generated between the first copper bar and the first electric contact during the process of the first electric contact being separated from the first copper bar. At the same time, the tooth angle of the arc extinguishing assembly end of the first electric contact can concentrate the arc generated within the insulating layer range of the middle part of the arc extinguishing plate, and the other end of the first electric contact is shorter than the tooth angle end and is not easy to generate an arc relative to the tooth angle end, so that the arc extinguishing assembly has an effective arc extinguishing function. In addition, the second heat sinks on both sides of the arc extinguishing plate can effectively dissipate the heat and cool the arc, further achieving the purpose of arc extinguishing.

[0008] The above purpose is achieved through the following technical solutions:

[0009] A slide rail type small busbar and plug-in box, used for distributing power to equipment loads, comprising:

[0010] A busbar assembly is used to connect a power source; the busbar assembly comprises a busbar duct with a first slot at the lower end, wherein the busbar duct is provided with a second copper bar located at the top thereof and two pairs of first copper bars located at both sides of the first slot.

[0011] A plug-in box assembly is used to electrically connect a busbar assembly to an equipment load; the plug-in box assembly includes a box body, the top of the box body is connected to a middle seat through a connecting plate, a top rod is vertically slid in a second slide groove at the top of the middle seat, a second electrical contact cooperating with a second copper bar is arranged at the top of the top rod, a reset spring for driving the second electrical contact to move upward is arranged on the top rod, two guide seats for synchronously moving toward or away from each other are symmetrically arranged on both sides of the middle seat, the lower side of the guide seat moves horizontally in a direction perpendicular to the movement of the guide seat and has two slide seats synchronously driven by a first motor and vertically distributed, a polishing assembly for polishing the connecting plate side of the corresponding first copper bar and an electrical connection assembly for electrically contacting the polished part of the first copper bar after the polishing assembly finishes polishing the first copper bar, the electrical connection assembly has an arc extinguishing assembly for effectively extinguishing an arc generated by its separation from the first copper bar, and the polishing assembly can effectively dissipate heat and cool the polished part of the first copper bar during the process of polishing the first copper bar.

[0012] In one embodiment, the first copper busbar is disposed in a first socket, which is fixed to an inner wall of the bus duct, and the second copper busbar is disposed in a second socket, which is fixed to a top of the bus duct.

[0013] In one embodiment, the first socket has a ventilation groove running through both ends thereof, the upper end of the first socket is provided with a groove, the bottom of the groove is provided with a second slot for inserting the first copper bar, and the two side walls of the first copper bar are provided with two first card slots that cooperate with the second slot.

[0014] In one embodiment, a plurality of first heat sinks are disposed at the lower end of the first copper bar.

[0015] In one of the embodiments, the guide seat is provided with two symmetrically distributed racks and two symmetrically distributed guide rods, the racks and guide rods slide in the first slide groove and guide hole on the middle seat respectively, the two racks on the same side of the two guide seats are meshed with the first gear in the middle seat, the second gear is installed on the first rotating shaft where the first gear is located, the second rotating shaft is arranged in the middle seat, two third gears are installed at both ends of the second rotating shaft, the two third gears are meshed with the second gear one by one, the third rotating shaft is arranged in the connecting plate, the fifth gear and the sixth gear are respectively installed at the upper and lower ends of the third rotating shaft, the fifth gear is meshed with the fourth gear on the second rotating shaft, the side wall of the box is arranged, the inner end of the fourth rotating shaft is installed with the seventh gear meshed with the sixth gear, and the outer end of the fourth rotating shaft is installed with a manual twist wheel.

[0016] In one embodiment, the guide seat is provided with a screw which is threadedly connected to the corresponding slide seat and transmission connected to the output shaft of the first motor. The first motor is installed at one end of the guide seat, and the two slide seats corresponding to the guide seat are integrally connected by two connecting rods.

[0017] In one embodiment, the grinding assembly includes a first rotating sleeve, which is rotatably set on a first fixed pin at one end of a corresponding slide seat, a first vortex spring is connected between the first rotating sleeve and the first fixed pin, a first clamping block is set on the outer side of the first rotating sleeve, the first clamping block cooperates with the second clamping block on the corresponding slide seat, a rocker arm is set on the first rotating sleeve, two roller shafts parallel to the movement of the slide seat are rotatably set on the rocker arm, the roller shafts are transmission-connected to the output shaft of a second motor mounted on the rocker arm, a belt roller is set on the roller shaft, a synchronous belt is mounted on the two belt rollers, a grinding layer is set on the surface of the synchronous belt, blades evenly distributed circumferentially are set at both ends of the synchronous belt, the rocker arm cooperates with a driving rod fixed to the guide seat, and two support forks cooperating with the first copper bar are set at both ends of the guide seat.

[0018] In one embodiment, the electrical connection component includes a fork-shaped insulating sleeve, which is installed on the lower end of the slide seat through a third socket, and the inner wall of the insulating sleeve is provided with a fork-shaped first electrical contact, the two branches of the first electrical contact are different in length, and the end of the longer branch of the first electrical contact is provided with three tooth angles, a temperature sensor is provided between the longer branch of the first electrical contact and the insulating sleeve, and the end of one branch of the insulating sleeve where the longer branch of the first electrical contact is located is hinged with an arc extinguishing component for extinguishing the arc generated by the tooth angle.

[0019] In one embodiment, the arc extinguishing assembly includes a copper arc extinguishing plate, the width of the arc extinguishing plate is greater than the width of the insulating sleeve, second rotating sleeves on both sides of the arc extinguishing plate are rotatably set on second fixing pins on both sides of the insulating sleeve, a second vortex spring is connected between the second rotating sleeve and the corresponding second fixing pin, the third clamping block on the second fixing pin moves in the second clamping groove on the inner wall of the corresponding second rotating sleeve, an insulating layer is provided on the surface of the arc extinguishing plate located within the range of the insulating sleeve, and a plurality of second heat sinks are provided on both sides of the arc extinguishing plate.

[0020] In one embodiment, three plug connectors are arranged on the wall of the box body, and an inductive power supply module, five circuit breakers, four current transformers, a controller and a transmitting module are arranged in the box body. The five circuit breakers divide the wires introduced from the four first electrical contacts and the second electrical contacts into three and respectively lead them to the three plug connectors. The inductive power supply module is arranged on the four wires connecting the four first electrical contacts and the corresponding four circuit breakers. The four current transformers are respectively arranged on the guides led out of the four circuit breakers corresponding to the first electrical contacts. The inductive power supply module is electrically connected to the controller through wires, and the transmitting module and the controller are respectively electrically connected to the temperature sensor, the first motor and the second motor through wires.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention grinds the four first copper bars in the busbar assembly through four grinding assemblies in the plug-in box assembly and then inserts the four electrical connection assemblies into the grinded places on the corresponding first copper bars, so as to ensure that the first electrical contacts in the electrical connection assemblies can form good electrical contact with the corresponding first copper bars. When the first electrical contacts in the electrical connection assemblies and the first copper bars are oxidized due to long-term contact with high temperature, the controller in the box body can control the start of the first motor to drive the grinding assembly to replace the electrical connection assembly to interact with the oxidized parts on the first copper bars and effectively grind them, so that the electrical connection assembly can have good electrical contact with the first copper bars again, reduce the resistance between the first electrical contacts in the electrical connection assemblies and the first copper bars, and further avoid the generation of high temperature and oxidation between the first copper bars and the first electrical contacts.

[0023] 2. The blades on the synchronous belt in the polishing assembly of the plug-in box assembly in the present invention can effectively dissipate the heat of the first copper bar being polished. In addition, the blades on the synchronous belt in the polishing assembly can effectively dissipate the heat of the portion of the first copper bar that is in electrical contact with the first electrical contact in the electrical connection assembly when driven by the second motor, thereby preventing the portion of the first copper bar that is in electrical contact with the electrical connection assembly from generating high temperature and delaying the oxidation of the portion of the first copper bar that is in electrical contact with the electrical connection assembly.

[0024] 3. The arc extinguishing assembly of the electrical connection assembly of the plug-in box assembly in the present invention, which is located at the lower end of one of the insulating sleeves, can block the arc generated between the first copper bar and the first electrical contact during the process of the first electrical contact being separated from the first copper bar. At the same time, the tooth angle of the arc extinguishing assembly end of the first electrical contact can concentrate the arc within the insulating layer range in the middle of the arc extinguishing plate, and the other end of the first electrical contact is shorter than the tooth angle end and is less likely to generate an arc relative to the tooth angle end, so that the arc extinguishing assembly has an effective arc extinguishing function. In addition, the second heat sinks on both sides of the arc extinguishing plate can effectively dissipate heat and cool the arc, further achieving the purpose of arc extinguishing.

[0025] 4. The ventilation groove on the first socket where the first copper bar of the busbar assembly is located can pass cold air to take away the heat emitted by the first heat sink on the first copper bar, thereby effectively cooling the part of the first copper bar that contacts the electrical connection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the present invention;

[0027] Figure 2 These are two cross-sectional views of the busbar assembly and the plug-in box assembly in the present invention;

[0028] Figure 3 It is a busbar assembly and a cross-sectional view thereof in the present invention;

[0029] Figure 4 It is a schematic diagram of the first socket structure of the busbar assembly in the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the first copper bar of the busbar assembly in the present invention;

[0031] Figure 6 are two schematic diagrams of the plug-in box assembly of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure on the guide seat of the plug-in box assembly in the present invention;

[0033] Figure 8 It is a sectional view of the transmission connection of two guide seats in the plug-in box assembly of the present invention;

[0034] Fig. 9 It is a cross-sectional view of the synchronous driving structure of two guide seats in the plug-in box assembly of the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of the middle seat of the plug-in box assembly of the present invention;

[0036] Fig.11 It is a cross-sectional view of the structure on the guide seat in the plug-in box assembly of the present invention;

[0037] Fig.12 It is a top cross-sectional view of the coordination between the swing rod and the driving rod in the plug-in box assembly of the present invention;

[0038] Fig.13 It is a cross-sectional view of the structure of the first rotating sleeve in the plug-in box assembly of the present invention;

[0039] Fig.14 It is a cross-sectional view of the electrical connection assembly and the first copper bar in the plug-in box assembly of the present invention and the structure of the electrical connection assembly;

[0040] Fig.15 are two cross-sectional views of the electrical connection assembly in the plug-in box assembly of the present invention;

[0041] Fig.16 It is a structural diagram of the arc extinguishing component of the electrical connection component in the plug-in box component of the present invention;

[0042] Fig.17 It is a structural diagram of a first electrical contact of an electrical connection assembly in a plug-in box assembly of the present invention;

[0043] Fig.18 It is a grinding component in the plug-in box component of the present invention and its cross-sectional view;

[0044] Fig.19 It is a cross-sectional view of the plug-in box assembly and the busbar assembly of the present invention;

[0045] Fig. 20 It is a longitudinal section view of the plug-in box assembly and the busbar assembly of the present invention;

[0046] Fig.21 It is a schematic diagram of the steps of disassembling the plug-in box assembly and the busbar assembly of the present invention;

[0047] Name of the label in the figure:

[0048] 100, busbar assembly; 101, busbar duct; 102, first slot; 103, first socket; 104, venting slot; 105, groove; 106, second slot; 107, first copper bar; 108, first card slot; 109, first heat sink; 110, second socket; 111, second copper bar;

[0049] 200, plug box assembly; 201, box body; 202, plug connector; 203, connecting plate; 204, middle seat; 205, guide hole; 206, first slide slot; 207, guide seat; 208, guide rod; 209, rack; 210, first gear; 211, first rotating shaft; 212, second gear; 213, third gear; 214, second rotating shaft; 215, fourth gear; 216, fifth gear wheel; 217, third rotating shaft; 218, sixth gear; 219, seventh gear; 220, fourth rotating shaft; 222, torsion wheel; 223, first motor; 224, screw rod; 225, slide seat; 226, connecting rod; 227, first fixing pin; 228, first vortex spring; 229, first rotating sleeve; 230, first clamping block; 231, second clamping block; 232, swing rod; 233, roller shaft; 234 , second motor; 235, belt roller; 236, synchronous belt; 237, blade; 238, grinding layer; 239, driving rod; 240, grinding assembly; 241, supporting fork; 242, electrical connection assembly; 243, third socket; 244, insulating sleeve; 245, first electrical contact; 246, tooth angle; 247, temperature sensor; 248, arc extinguishing assembly; 249, arc extinguishing plate; 250, second heat sink; 251, second rotating sleeve; 252, second slot; 253, second fixing pin; 254, third block; 255, insulating layer; 256, second vortex spring; 257, push rod; 258, second electrical contact; 259, reset spring; 260, induction power module; 261, circuit breaker; 262, current transformer; 263, controller; 264, transmitting module; 265, second slide slot. DETAILED DESCRIPTION

[0050] 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.

[0051] 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.

[0052] 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.

[0053] like Figure 1-21 As shown, a slide rail type small busbar and a plug-in box are used to distribute power to equipment loads, including:

[0054] The busbar assembly 100 is used to connect a power source; the busbar assembly 100 includes a busbar duct 101 with a first slot 102 at the lower end, and the busbar duct 101 is provided with a second copper busbar 111 located at the top thereof and two pairs of first copper busbars 107 located on both sides of the first slot 102.

[0055] The plug-in box assembly 200 is used to electrically connect the busbar assembly 100 with the equipment load; the plug-in box assembly 200 includes a box body 201, the top of the box body 201 is connected to a middle seat 204 through a connecting plate 203, a top rod 257 is vertically slid in a second slide groove 265 at the top of the middle seat 204, a second electrical contact 258 cooperating with the second copper bar 111 is arranged at the top of the top rod 257, a reset spring 259 for driving the second electrical contact 258 to move upward is arranged on the top rod 257, two guide seats 207 that move synchronously toward or away from each other are symmetrically arranged on both sides of the middle seat 204, and the lower side of the guide seat 207 moves along the guide seat 207. There are two slides 225 synchronously driven by the first motor 223 and distributed vertically for horizontal movement in the vertical direction. The slide 225 is provided with a grinding component 240 for grinding the side of the connecting plate 203 of the corresponding first copper bar 107 and an electrical connection component 242 for electrically contacting the polished part of the first copper bar 107 after the grinding component 240 finishes grinding the first copper bar 107. The electrical connection component 242 has an arc extinguishing component 248 for effectively extinguishing the arc generated by its separation from the first copper bar 107. The grinding component 240 can effectively dissipate heat and cool the polished part of the first copper bar 107 during the process of grinding the first copper bar 107.

[0056] In a further embodiment, Figure 3 , 4As shown, the first copper busbar 107 is disposed in the first socket 103 , the first socket 103 is fixed to the inner wall of the bus duct 101 , and the second copper busbar 111 is disposed in the second socket 110 , and the second socket 110 is fixed to the top of the bus duct 101 .

[0057] In a further embodiment, Figure 3 , 4 As shown in FIG. 5 , the first socket 103 has a venting groove 104 running through both ends thereof, a groove 105 is provided at the upper end of the first socket 103, a second slot 106 for inserting a first copper busbar 107 is provided at the bottom of the groove 105, and two first card slots 108 cooperating with the second slot 106 are provided on the two side walls of the first copper busbar 107.

[0058] In a further embodiment, Figure 3 , 4 As shown in FIG. 5 , a plurality of first heat sinks 109 are provided at the lower end of the first copper bar 107 .

[0059] In a further embodiment, Figure 2 , 7 As shown in , 8 and 9, the guide seat 207 is provided with two symmetrically distributed racks 209 and two symmetrically distributed guide rods 208, the racks 209 and the guide rods 208 slide in the first slide groove 206 and the guide hole 205 on the middle seat 204 respectively, the two racks 209 on the same side of the two guide seats 207 are meshed with the first gear 210 in the middle seat 204, the first rotating shaft 211 where the first gear 210 is located is installed with a second gear 212, the middle seat 204 is provided with a second rotating shaft 214, and two third gears 214 are installed at both ends. 13, the two third gears 213 are meshed with the second gear 212 in a one-to-one correspondence, a third rotating shaft 217 is provided in the connecting plate 203, a fifth gear 216 and a sixth gear 218 are respectively installed on the upper and lower ends of the third rotating shaft 217, the fifth gear 216 is meshed with the fourth gear 215 on the second rotating shaft 214, a fourth rotating shaft 220 is provided in the side wall of the box body 201, a seventh gear 219 meshed with the sixth gear 218 is installed at the inner end of the fourth rotating shaft 220, and a manual twist wheel 222 is installed at the outer end of the fourth rotating shaft 220.

[0060] In a further embodiment, Figure 6 , 7 As shown in Figure 11, the guide seat 207 is provided with a screw rod 224 which is threadedly connected to the corresponding slide seat 225 and is transmission-connected to the output shaft of the first motor 223. The first motor 223 is installed at one end of the guide seat 207. The two slide seats 225 corresponding to the guide seat 207 are integrally connected by two connecting rods 226.

[0061] In a further embodiment, Fig.11 , 12 As shown in 14 and 18, the grinding assembly 240 includes a first rotating sleeve 229, which is rotatably arranged on a first fixing pin 227 at one end of a corresponding slide 225, a first vortex spring 228 is connected between the first rotating sleeve 229 and the first fixing pin 227, a first clamping block 230 is arranged on the outer side of the first rotating sleeve 229, and the first clamping block 230 cooperates with a second clamping block 231 on the corresponding slide 225, a swing rod 232 is arranged on the first rotating sleeve 229, and two swing rods rotatably arranged on the swing rod 232 to move with the slide 225 A parallel roller shaft 233 is connected to the output shaft of a second motor 234 installed on a rocker arm 232, and a belt roller 235 is provided on the roller shaft 233. A synchronous belt 236 is installed on the two belt rollers 235. A grinding layer 238 is provided on the surface of the synchronous belt 236. Blades 237 uniformly distributed in the circumferential direction are provided at both ends of the synchronous belt 236. The rocker arm 232 cooperates with a driving rod 239 fixed to a guide seat 207. Two support forks 241 cooperating with the first copper bar 107 are provided at both ends of the guide seat 207.

[0062] In a further embodiment, Fig.14 , 15 As shown in Figures 16 and 17, the electrical connection component 242 includes a fork-shaped insulating sleeve 244, and the insulating sleeve 244 is installed on the lower end of the slide 225 through a third socket 243. A fork-shaped first electrical contact 245 is provided on the inner wall of the insulating sleeve 244. The two branches of the first electrical contact 245 are of different lengths. The end of the longer branch of the first electrical contact 245 is provided with three tooth angles 246. A temperature sensor 247 is provided between the longer branch of the first electrical contact 245 and the insulating sleeve 244. An arc extinguishing component 248 for extinguishing the arc generated by the tooth angle 246 is hinged at the end of one branch of the insulating sleeve 244 where the longer branch of the first electrical contact 245 is located.

[0063] In a further embodiment, Fig.14 , 15As shown in Figures 16 and 17, the arc extinguishing assembly 248 includes a copper arc extinguishing plate 249, the width of the arc extinguishing plate 249 is greater than the width of the insulating sleeve 244, and second rotating sleeves 251 on both sides of the arc extinguishing plate 249 are rotatably set on second fixing pins 253 on both sides of the insulating sleeve 244, and a second vortex spring 256 is connected between the second rotating sleeve 251 and the corresponding second fixing pin 253, and the third clamping block 254 on the second fixing pin 253 moves in the second clamping groove 252 on the inner wall of the corresponding second rotating sleeve 251, and the surface of the arc extinguishing plate 249 located within the range of the insulating sleeve 244 is provided with an insulating layer 255, and a plurality of second heat sinks 250 are provided on both sides of the arc extinguishing plate 249.

[0064] In a further embodiment, Figure 2 , 6 As shown, three plug connectors 202 are arranged on the wall of the box 201, and an inductive power supply module 260, five circuit breakers 261, four current transformers 262, a controller 263 and a transmitting module 264 are arranged in the box 201. The five circuit breakers 261 divide the wires introduced from the four first electrical contacts 245 and the second electrical contacts 258 into three and respectively lead them to the three plug connectors 202. The inductive power supply module 260 is arranged on the four wires connecting the four first electrical contacts 245 and the corresponding four circuit breakers 261. The four current transformers 262 are respectively arranged on the guides led out from the four circuit breakers 261 corresponding to the first electrical contacts 245. The inductive power supply module 260 is electrically connected to the controller 263 through wires, and the transmitting module 264 and the controller 263 are respectively electrically connected to the temperature sensor 247, the first motor 223 and the second motor 234 through wires.

[0065] The present invention polishes the four first copper bars 107 in the busbar assembly 100 through the four polishing assemblies 240 in the plug-in box assembly 200, and then inserts the four electrical connection assemblies 242 into the polished places on the corresponding first copper bars 107, so as to ensure that the first electrical contacts 245 in the electrical connection assemblies 242 can form good electrical contact with the corresponding first copper bars 107. When the first electrical contacts 245 in the electrical connection assemblies 242 and the first copper bars 107 are oxidized due to long-term contact with high temperature, the controller 263 in the box body 201 can control the start of the first motor 223 to drive the polishing assembly 240 to replace the electrical connection assembly 242 to interact with the oxidized parts on the first copper bars 107 and effectively polish them, so that the electrical connection assemblies 242 can have good electrical contact with the first copper bars 107 again, reduce the resistance between the first electrical contacts 245 in the electrical connection assemblies 242 and the first copper bars 107, and further avoid the generation of high temperature and oxidation between the first copper bars 107 and the first electrical contacts 245. The blades 237 on the synchronous belt 236 in the polishing assembly 240 of the plug-in box assembly 200 in the present invention can effectively dissipate the heat of the first copper bar 107 being polished thereby. In addition, the blades 237 on the synchronous belt 236 in the polishing assembly 240, driven by the second motor 234, can effectively dissipate the heat of the portion of the first copper bar 107 that is in electrical contact with the first electrical contact 245 in the electrical connection assembly 242, thereby preventing the portion of the first copper bar 107 that is in electrical contact with the electrical connection assembly 242 from generating high temperature and delaying oxidation of the portion of the first copper bar 107 that is in electrical contact with the electrical connection assembly 242. The arc extinguishing assembly 248 of the electrical connection assembly 242 of the plug box assembly 200 of the present invention, which is located at the lower end of the insulating sleeve 244, can block the arc generated between the first copper bar 107 and the first electrical contact 245 during the process of the first electrical contact 245 being separated from the first copper bar 107. At the same time, the tooth angle 246 at the end of the arc extinguishing assembly 248 of the first electrical contact 245 can concentrate the generated arc within the range of the insulating layer 255 in the middle of the arc extinguishing plate 249, and the other end of the first electrical contact 245 is shorter than the tooth angle 246 end and is not easy to generate an arc relative to the tooth angle 246 end, so that the arc extinguishing assembly 248 has an effective arc extinguishing function. In addition, the second heat sinks 250 on both sides of the arc extinguishing plate 249 can effectively dissipate heat and cool the arc, further achieving the purpose of arc extinguishing.

[0066] The plug connector 202 in the present invention is an industrial quick plug.

[0067] The connection and installation process of the plug-in box assembly 200 and the busbar assembly 100 in the present invention is as follows:

[0068] In the initial state, Fig.16 , 21As shown in (c), the second electrical contact 258 in the plug-in box assembly 200 has a maximum distance from the middle seat 204, the reset spring 259 is in a compressed state, the lateral distance between the two guide seats 207 is smaller than the width of the first slot 102, the polishing assembly 240 in the plug-in box assembly 200 is located in the middle position of the guide seat 207, the swing rod 232 in the polishing assembly 240 contacts the straight section of the corresponding driving rod 239 and is in a vertical state for polishing the first copper bar 107, the first vortex spring 228 is in a compressed state, the first clamping block 230 and the second clamping block 231 are circumferentially abutted, the arc extinguishing plate 249 in the electrical connection assembly 242 is in a horizontal state under the action of the corresponding second vortex spring 256, the third clamping block 254 is abutted against the extreme position of the corresponding second slot 252, and the arc extinguishing plate 249 completely blocks the lower end opening of the corresponding insulating sleeve 244.

[0069] like Fig.16 , 21 As shown in (c), the portion above the box body 201 of the plug-in box assembly 200 is extended into the box body 201 of the busbar assembly 100 through the first slot 102, so that the second electrical contact 258 abuts against the second copper bus 111 and further compresses the reset spring 259, so that the top rod 257 contracts to a certain extent into the second slide groove 265, so that the lowest ends of the four electrical connection components 242 and the polishing component 240 are all higher than the top ends of the corresponding first copper bus 107.

[0070] Then, if Fig.21 As shown in (b), the twist wheel 222 is rotated, and the twist wheel 222 drives the two third gears 213 to rotate a certain amplitude through the fourth shaft 220, the seventh gear 219, the sixth gear 218, the third shaft 217, the fifth gear 216, the fourth gear 215, and the second shaft 214. The two third gears 213 drive the two guide seats 207 to move horizontally in opposite directions by a certain amplitude through the corresponding second gear 212, the first shaft 211, the first gear 210 and the corresponding two racks 209, so that the first electrical contact 245 in the electrical connection component 242 is exactly opposite to the corresponding first copper bus 107 in the upper and lower directions.

[0071] Then, if Fig.21As shown in (a), the plug-in box assembly 200 is pulled downward so that the four first electrical contacts 245 are inserted downward into the four first copper bars 107 at the same time, and the support forks 241 at both ends of each guide seat 207 are inserted into the first copper bar 107 and support the plug-in box assembly 200 as a whole. At the same time, the grinding layer 238 of the grinding assembly 240 under each slide seat 225 is tightly attached to the side wall of the corresponding first copper bar 107 under the action of the corresponding first vortex spring 228, and then, the four second motors 234 in the four grinding assemblies 240 are started, and the second motors 234 drive the corresponding synchronous belts 236 to move and grind the corresponding first copper bars 107. After the grinding of the first copper bars 107 is completed, the second motors 234 are stopped and The first motor 223 is started to run. The first motor 223 drives the guide seat 207 to move along the length direction of the first copper bar 107 through the screw 224. The guide seat 207 drives the polishing assembly 240 and the electrical connection assembly 242 to move synchronously. When the polishing assembly 240 leaves the polished portion of the first copper bar 107, the swing rod 232 in the polishing assembly 240 swings inward at a small angle under the guidance of the corresponding driving rod 239 and disengages from the first copper bar 107. When the first electrical contact 245 in the electrical connection assembly 242 completely reaches the position on the first copper bar 107 where the polishing assembly 240 has completed polishing, the first motor 223 is stopped, and good electrical contact is formed between the first electrical contact 245 and the first copper bar 107.

[0072] During the process of inserting the first electrical contact 245 onto the first copper bar 107 , the arc extinguishing plate 249 at the lower end of the corresponding insulating sleeve 244 swings upward under the action of the first copper bar 107 and further compresses the second vortex spring 256 and always maintains contact with the side wall of the first copper bar 107 .

[0073] The process of polishing the first copper bar 107 after long-term use is as follows:

[0074] The first motor 223 is started, and the first motor 223 drives the grinding assembly 240 and the electrical connection assembly 242 to move to the initial position. The electrical connection assembly 242 is separated from the electrical contact with the first copper bar 107, and the grinding assembly 240 reaches the position on the first copper bar 107 that is in electrical contact with the electrical connection assembly 242. The grinding assembly 240 swings back and resets under the joint action of the corresponding first vortex spring 228 and the driving rod 239 and is tightly attached to the wall surface of the first copper bar 107. Then, the second motor 234 is started to drive the synchronous belt 236 in the grinding assembly 240 and the grinding layer 238 thereon to grind the first copper bar 107. After the grinding is completed, the first motor 223 is restarted to drive the grinding assembly 240 and the electrical connection assembly 242 to move toward one end of the guide seat 207. Under the action of the driving rod 239 and the first vortex spring 228, the grinding assembly 240 breaks away from the first copper bar 107, and the electrical connection assembly 242 reaches the grounded part of the first copper bar 107 again, and the electrical connection assembly 242 completes electrical contact with the first copper bar 107.

[0075] The separation and disassembly process of the plug-in box assembly 200 and the busbar assembly 100 in the present invention is as follows:

[0076] In the initial state, Fig.14 , 21 As shown in (a), the second electrical contact 258 in the plug-in box assembly 200 is spaced a certain distance from the middle seat 204, the reset spring 259 is in a compressed state, the lateral spacing between the two guide seats 207 is greater than the width of the first slot 102, the grinding assembly 240 in the plug-in box assembly 200 is located near the end side of the guide seat 207, the swing rod 232 in the grinding assembly 240 is in contact with the curved section of the corresponding driving rod 239 and is in a slightly inclined state of non-grinding with respect to the first copper bar 107, the first vortex spring 228 is in a compressed state, the first clamping block 230 and the second clamping block 231 are circumferentially spaced a certain distance apart, the arc extinguishing plate 249 in the electrical connection assembly 242 is located in the corresponding insulating sleeve 244 under the action of the corresponding second vortex spring 256 and is laterally against the first copper bar 107, and the third clamping block 254 is located near the other extreme position of the corresponding second clamping slot 252.

[0077] Then, if Fig.21 As shown in (a), the plug-in box assembly 200 is pushed upward, so that the four first electrical contacts 245 are simultaneously separated from the four first copper bars 107, the top rod 257 shrinks to a certain extent into the second slide groove 265 and further compresses the reset spring 259, the support forks 241 at both ends of each guide seat 207 are separated from the first copper bar 107 and the support for the plug-in box assembly 200 is released as a whole, and at the same time, the grinding assembly 240 under each slide seat 225 is separated from the side wall of the corresponding first copper bar 107.

[0078] In the process of the first electrical contact 245 upwardly separating from the first copper busbar 107, the arc extinguishing plate 249 at the lower end of the corresponding insulating sleeve 244 swings down and resets under the action of the second vortex spring 256 and always maintains contact with the side wall of the first copper busbar 107. When the arc extinguishing plate 249 is completely separated from the first copper busbar 107, the arc extinguishing plate 249 returns to a horizontal state, and the arc extinguishing plate 249 blocks the arc generated by the tooth angle 246 at the end of the longer branch of the first electrical contact 245, thereby achieving the purpose of arc extinguishing, and the second heat sinks 250 on both sides of the arc extinguishing plate 249 moderately dissipate heat and cool the arc, thereby further achieving the purpose of arc extinguishing.

[0079] Then, if Fig.21 As shown in (b), the twist wheel 222 is rotated, and the twist wheel 222 drives the two third gears 213 to rotate a certain amplitude through the fourth shaft 220, the seventh gear 219, the sixth gear 218, the third shaft 217, the fifth gear 216, the fourth gear 215, and the second shaft 214. The two third gears 213 drive the two guide seats 207 to move horizontally toward each other by a certain amplitude through the corresponding second gear 212, the first shaft 211, the first gear 210 and the corresponding two racks 209, so that the electrical connection component 242 completely enters the upper part within the range of the first slot 102.

[0080] Then, if Fig.21 As shown in (c), the portion above the box body 201 of the plug-in box assembly 200 is downwardly separated from the box body 201 of the busbar assembly 100 through the first slot 102 .

Claims

1. A slide rail type small busbar and plug-in box, used for distributing power to equipment loads, characterized in that: include: A busbar assembly is used to connect a power source; the busbar assembly includes a busbar duct with a first slot at the lower end, wherein the busbar duct is provided with a second copper bar located at the top thereof and two pairs of first copper bars located at both sides of the first slot; A plug-in box assembly is used to electrically connect a busbar assembly to an equipment load; the plug-in box assembly includes a box body, the top of the box body is connected to a middle seat through a connecting plate, a top rod is vertically slid in a second slide groove at the top of the middle seat, a second electrical contact cooperating with a second copper bar is arranged at the top of the top rod, a reset spring for driving the second electrical contact to move upward is arranged on the top rod, two guide seats for synchronously moving toward or away from each other are symmetrically arranged on both sides of the middle seat, the lower side of the guide seat moves horizontally in a direction perpendicular to the movement of the guide seat and has two slide seats synchronously driven by a first motor and vertically distributed, a polishing assembly for polishing the connecting plate side of the corresponding first copper bar and an electrical connection assembly for electrically contacting the polished part of the first copper bar after the polishing assembly finishes polishing the first copper bar, the electrical connection assembly has an arc extinguishing assembly for effectively extinguishing an arc generated by its separation from the first copper bar, and the polishing assembly can effectively dissipate heat and cool the polished part of the first copper bar during the process of polishing the first copper bar.

2. A slide rail type small busbar and plug-in box according to claim 1, characterized in that: The first copper bar is arranged in a first socket, and the first socket is fixed to the inner wall of the bus duct. The second copper bar is arranged in a second socket, and the second socket is fixed to the top of the bus duct.

3. A slide rail type small busbar and plug-in box according to claim 2, characterized in that: The first socket has a ventilation groove running through both ends thereof, the upper end of the first socket is provided with a groove, the bottom of the groove is provided with a second slot for inserting the first copper bar, and the two side walls of the first copper bar are provided with two first card slots matching the second slot.

4. A slide rail type small busbar and plug-in box according to claim 3, characterized in that: A plurality of first heat sinks are arranged at the lower end of the first copper bar.

5. The slide rail type small busbar and plug-in box according to claim 1, characterized in that: The guide seat is provided with two symmetrically distributed racks and two symmetrically distributed guide rods, the racks and guide rods slide in the first sliding groove and guide hole on the middle seat respectively, the two racks on the same side of the two guide seats are meshed with the first gear in the middle seat, the second gear is installed on the first rotating shaft where the first gear is located, the second rotating shaft is arranged in the middle seat, two third gears are installed at both ends of the second rotating shaft, the two third gears are meshed with the second gear one by one, the third rotating shaft is arranged in the connecting plate, the fifth gear and the sixth gear are respectively installed at the upper and lower ends of the third rotating shaft, the fifth gear is meshed with the fourth gear on the second rotating shaft, the fourth rotating shaft is arranged in the side wall of the box body, the seventh gear meshed with the sixth gear is installed at the inner end of the fourth rotating shaft, and a manual twist wheel is installed at the outer end of the fourth rotating shaft.

6. The slide rail type small busbar and plug-in box according to claim 1, characterized in that: The guide seat is provided with a screw which is threadedly connected to the corresponding slide seat and drivingly connected to the output shaft of the first motor. The first motor is installed at one end of the guide seat. The two slide seats corresponding to the guide seat are integrally connected through two connecting rods.

7. The slide rail type small busbar and plug-in box according to claim 1, characterized in that: The grinding assembly includes a first rotating sleeve, which is rotatably arranged on a first fixed pin at one end of a corresponding slide seat, a first vortex spring is connected between the first rotating sleeve and the first fixed pin, a first clamping block is arranged on the outer side of the first rotating sleeve, the first clamping block cooperates with the second clamping block on the corresponding slide seat, a rocker arm is arranged on the first rotating sleeve, two roller shafts parallel to the movement of the slide seat are rotatably arranged on the rocker arm, the roller shafts are transmission-connected to the output shaft of a second motor installed on the rocker arm, a belt roller is arranged on the roller shaft, a synchronous belt is installed on the two belt rollers, a grinding layer is arranged on the surface of the synchronous belt, blades evenly distributed in the circumferential direction are arranged at both ends of the synchronous belt, the rocker arm cooperates with a driving rod fixed to the guide seat, and two support forks cooperating with the first copper bar are arranged at both ends of the guide seat.

8. A slide rail type small busbar and plug-in box according to claim 7, characterized in that: The electrical connection component includes a fork-shaped insulating sleeve, which is installed on the lower end of the slide seat through a third socket. A fork-shaped first electrical contact is provided on the inner wall of the insulating sleeve. The two branches of the first electrical contact are of different lengths. The end of the longer branch of the first electrical contact is provided with three tooth angles. A temperature sensor is provided between the longer branch of the first electrical contact and the insulating sleeve. An arc extinguishing component for extinguishing the arc generated by the tooth angle is hinged at the end of one branch of the insulating sleeve where the longer branch of the first electrical contact is located.

9. A slide rail type small busbar and plug-in box according to claim 8, characterized in that: The arc extinguishing assembly includes a copper arc extinguishing plate, the width of the arc extinguishing plate is greater than the width of the insulating sleeve, second rotating sleeves on both sides of the arc extinguishing plate are rotatably set on second fixing pins on both sides of the insulating sleeve, a second vortex spring is connected between the second rotating sleeve and the corresponding second fixing pin, the third clamping block on the second fixing pin moves in the second clamping groove on the inner wall of the corresponding second rotating sleeve, an insulating layer is provided on the surface of the arc extinguishing plate located within the range of the insulating sleeve, and a plurality of second heat sinks are provided on both sides of the arc extinguishing plate.

10. A slide rail type small busbar and plug-in box according to claim 1, characterized in that: Three plug connectors are arranged on the wall of the box body, and an inductive power supply module, five circuit breakers, four current transformers, a controller and a transmitting module are arranged in the box body. The five circuit breakers divide the wires introduced from the four first electrical contacts and the second electrical contacts into three and respectively lead them to the three plug connectors. The inductive power supply module is arranged on the four wires connecting the four first electrical contacts and the corresponding four circuit breakers. The four current transformers are respectively arranged on the guides led out of the four circuit breakers corresponding to the first electrical contacts. The inductive power supply module is electrically connected to the controller through wires, and the transmitting module and the controller are electrically connected to the temperature sensor, the first motor and the second motor through wires respectively.

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