Power bus duct interposer

Abstract

The invention relates to the technical field of electric power, in particular to an electric power bus duct interpolator which comprises a connecting box and is characterized in that a plurality of insulating sheets are slidably connected in the connecting box, conducting sheets are fixedly connected in the insulating sheets and are made of precious metal platinum, the conductivity of platinum is good, and the conductivity is about 9.4 * 10 < 6 > S / m; the platinum conducting strip has excellent high-temperature resistance and high melting point, the platinum conducting strip can work normally without softening or performance reduction in a bus duct connector in some high-temperature environments, platinum also has very strong corrosion resistance, can resist corrosion of various strong acids and strong alkalis, and has a very good application prospect in some special industrial environments. The platinum conducting strip can guarantee the stability and reliability of power transmission, greatly improves the operation safety of a power system, does not need manual intervention in the whole process, operates depending on physical characteristics, is quick and reliable in response, and greatly reduces the fault processing time and labor cost.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and particularly to an insertion device for a power busbar. Background Art

[0002] In modern power transmission architectures, busbars are key components to ensure efficient power distribution and are widely used in various buildings and industrial facilities. Their connection relies on insertion devices. However, current insertion devices have frequent problems during actual operation. Due to the inevitable contact resistance at the connection points, and the contacts are vulnerable to oxidation due to current impact, mechanical friction, and environmental factors, resulting in an increase in contact resistance. The connection parts of the busbars are extremely prone to heat generation;

[0003] Continuous high temperatures pose great hazards to the power system. It will accelerate the aging of insulating materials, severely weaken the insulation performance, greatly increase the risks of electric leakage and short circuits. Once a short circuit occurs, it will not only cause local power outages, disrupting production and living order, but may also trigger uncontrollable electrical fires, causing huge casualties and property losses. According to relevant statistics, such electrical failures caused by heat generation at the connection parts of busbars account for a relatively high proportion in overall electrical accidents;

[0004] The functions of existing busbar insertion devices have obvious shortcomings. On the one hand, they lack an automatic temperature monitoring and power-off protection mechanism. In the face of abnormal temperatures, they can only rely on manual power-off by humans, making it difficult to respond to emergencies in a timely manner. On the other hand, commonly used copper and silver conductive sheets are prone to oxidation and corrosion in complex environments, resulting in an increase in contact resistance, affecting the conductivity and connection stability. Therefore, developing an insertion device that can automatically cut off power and uses high-performance conductive sheet materials is extremely crucial for ensuring the safe and stable operation of the power system.

[0005] Chinese Patent (Publication No. CN208904597U), this patented technology discloses an adjustable joint for a busbar, including a busbar. Four conductive connection heads are fixedly installed at the bottom of the busbar. An installation groove is opened at the bottom of the conductive connection head. A protective cover is fixedly installed outside the conductive connection head. A perforation is opened at the bottom of the protective cover. A conductive block is slidably connected in the installation groove. A connection plug block that penetrates the perforation is fixedly installed at the bottom of the conductive block. An installation hole is opened on the connection plug block. A thickened copper sheet is movably installed in the installation hole. This adjustable joint for a busbar, through the provided connection plug block and the installation hole opened on the connection plug block, realizes inserting thickened copper sheets with different thicknesses into the installation hole according to the connection gap distance of the busbar connector, thus ensuring the stable connection of the busbar joint and avoiding the phenomenon of falling off, and further facilitating the purpose of making the busbar joint adjustable.

[0006] According to the above solution, when the above solution is used, the connection of the mother groove can be strengthened to prevent loosening caused by long-term use, resulting in detachment, or gaps caused by contact, resulting in poor contact. However, it is impossible to cut off the power supply to protect against short circuits caused by long-term use, which has limitations. To solve the problem of being unable to cut off the power supply to protect against short circuits caused by long-term use, for this reason, we propose an in-sert for a power busbar trough. Summary of the Invention

[0007] The purpose of the present invention is to provide an in-sert for a power busbar trough to solve the problems raised in the above background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] An in-sert for a power busbar trough, including a connection box, inside which a plurality of insulating sheets are slidably connected. Inside the insulating sheets, conductive sheets are fixedly connected. The conductive sheets are made of platinum noble metal. Platinum has good electrical conductivity, and its conductivity is about 9.4×10 6 S / m. It has excellent high-temperature resistance, with a high melting point. In busbar connectors in some high-temperature environments, the platinum conductive sheets can work normally without softening or performance degradation. Platinum also has strong corrosion resistance and can resist the corrosion of various strong acids and alkalis. In some special industrial environments, the platinum conductive sheets can ensure the stability and reliability of power transmission. The outer wall of the connection box is fixedly connected with a first connecting plate and a second connecting plate;

[0010] At both ends of the connection box close to the first connecting plate and the second connecting plate, a plurality of mating ports are provided. Between the first connecting plate and the connection box, a power-off protection mechanism for powering off the connection box and the busbar trough is fixedly installed. At the bottom of the connection box, a fixing mechanism for fixedly connecting the busbar trough connecting piece is also fixedly installed. At the bottom of the connection box, a triggering mechanism for triggering the power-off protection mechanism is also fixedly installed. At the upper end of the second connecting plate, two connecting blocks are rotatably connected through pins.

[0011] As a further improvement of this solution, the fixing mechanism includes an installation round frame, the bottom of which is fixedly connected to the bottom of the connection box. Inside the installation round frame, a ratchet wheel is rotatably connected, and a plurality of connection boxes are also fixedly connected inside the installation round frame.

[0012] As a further improvement of this solution, inside each connection box, a slant tooth with a reset function is slidably connected. The outer wall of the slant tooth is engaged with the outer wall of the ratchet wheel. The bottom of the ratchet wheel is fixedly connected with a second recovery wheel, the bottom of the second recovery wheel is fixedly connected with a first recovery wheel, and a first pulling rope is wound around the outer wall of the second recovery wheel.

[0013] As a further improvement of this solution, two third pulling ropes are wound around the outer wall of the first recovery wheel. The free end of each third pulling rope is fixedly connected to two second pulling ropes. Each pair of second pulling ropes is fixedly connected to a corresponding insulating sheet. The outer wall of each third pulling rope slidably penetrates inside the corresponding insulating sheet.

[0014] As a further improvement of this solution, the power-off protection mechanism includes a third elastic telescopic rod. The third elastic telescopic rod is rotatably connected to the upper end of the second connecting plate, and a second spring is fixedly connected inside the third elastic telescopic rod.

[0015] As a further improvement of this solution, the upper end of the third elastic telescopic rod is fixedly connected to a first spring. The upper end of the first spring is fixedly connected to a mating round block. A plurality of folding arms are rotatably connected between the mating round block and the third elastic telescopic rod.

[0016] As a further improvement of this solution, the free end of the first pulling rope is fixedly connected to the bottom of the mating round block. The outer wall of the first pulling rope slidably penetrates inside the third elastic telescopic rod. Two second elastic telescopic rods are also fixedly connected to the bottom end inner wall of the connection box.

[0017] As a further improvement of this solution, the triggering mechanism includes a plurality of fourth elastic telescopic rods. The fourth elastic telescopic rods are fixedly connected to the lower end of the connection box.

[0018] As a further improvement of this solution, a mating ring is fixedly connected between all the fourth elastic telescopic rods. The mating ring and each helical tooth are fixedly connected by a mating pulling rope. Two first folding sleeves are fixedly connected inside the connection box. Each first folding sleeve is fixedly connected between the corresponding two insulating sheets. The two first folding sleeves are fixedly connected by a copper pipe.

[0019] As a further improvement of this solution, two second folding sleeves are fixedly connected to both ends of the inner wall of the connection box. Each second folding sleeve is fixedly connected and communicated with the corresponding first folding sleeve by a copper pipe. Each fourth elastic telescopic rod is fixedly connected to the corresponding second folding sleeve.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. When the present invention is in use, when the first pulling rope is continuously pulled until the first spring contracts to the limit state. At this time, the third elastic telescopic rod begins to contract. As the operation progresses, when the outer walls of all the folding arms tightly abut against the inner wall of the busbar chute, the limit fixation is achieved, and the limit fixation installation of the connection box is completed immediately. The entire installation process is convenient and efficient, and can be easily achieved;

[0022] 2. When the present invention is used, the conductive sheet is made of platinum precious metal. Platinum has good conductivity and the conductivity is about 9.4×10 6 S / m, it has excellent high temperature resistance and high melting point. In some bus duct connectors under high temperature environment, platinum conductive sheet can work normally without softening or performance degradation;

[0023] 3. When the present invention is used, when high temperature is generated at the connection part of the bus duct, the first folding sleeve and the second folding sleeve expand and extend due to the heat, and act on the conductive sheet with a gentle squeezing force. The connection box rotates along the connection block by relying on its own weight and internal weight, so that the conductive sheet is separated from the bus duct plug. At the same time, the second elastic telescopic rod increases the rotation force of the connection box with the help of a roller, and quickly completes the separation and power off. This design has significant advantages. It can automatically and quickly cut off power when the high temperature is abnormal, effectively avoiding serious accidents such as insulation aging, short circuit and fire, and greatly improving the safety of power system operation. No human intervention is required throughout the process, and it operates based on physical properties, with rapid and reliable responses, which greatly reduces fault handling time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic diagram of the structure of a power bus duct interposer.

[0025] Figure 2 The figure is a schematic diagram of the internal structure of a bottom protective cover in a power bus duct interposer.

[0026] Figure 3 This is a schematic diagram of the disassembly of a power bus duct interposer.

[0027] Figure 4 The figure is a schematic diagram of the interior of a connection box in a power bus duct interposer.

[0028] Figure 5 The present invention is a schematic diagram of the internal structure of a third elastic telescopic rod in a power bus duct interposer.

[0029] Figure 6 The present invention is a schematic diagram of the bottom structure of a connection box in a power bus duct interposer.

[0030] Figure 7 The present invention is a schematic diagram of the position structure of a knock rod in an electric bus duct interposer.

[0031] Figure 8 The present invention is a schematic diagram of the position of a handle in an electric bus duct inserter.

[0032] Figure 9 The figure is a schematic diagram of the position structure of a ratchet in a power bus duct interposer.

[0033] Figure 10 The figure is a schematic diagram of the position structure of a matching ring in an electric bus duct interposer.

[0034] In the figure: 1. Connection box; 2. First connecting plate; 3. Bottom protection cover; 4. Second connecting plate; 5. Matching port; 6. Mounting nut; 7. Connecting block; 8. Conductive sheet; 9. Insulating sheet; 10. First elastic telescopic rod; 11. Second folding sleeve;

[0035] 12. Roller; 13. Slide bar; 14. Second elastic telescopic rod; 15. First folding sleeve; 17. Matching round block; 18. First spring; 19. Folding arm; 20. Third elastic telescopic rod; 21. Second spring; 22. Rotating handle; 23. Fourth elastic telescopic rod; 24. First pull rope; 25. Connecting ring; 26. First recovery wheel; 27. Second recovery wheel; 28. Second pull rope; 29. Rotating sleeve; 30. Ring; 31. Third spring;

[0036] 32. Knocking rod; 33. Ratchet; 34. Mounting round frame; 35. Helical teeth; 36. Fourth spring; 38. Matching pull rope; 39. Matching ring; 40. Third pull rope; 101. Power-off protection mechanism; 201. Fixing mechanism; 301. Trigger mechanism. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Embodiment 1: Please refer to Figures 1 to 4 As shown, in the embodiment of the present invention, an in-line inserter for a power busbar includes a connection box 1. A plurality of insulating sheets 9 are slidably connected inside the connection box 1. A conductive sheet 8 is fixedly connected inside the insulating sheet 9. Every two insulating sheets 9 are fixedly connected by two first elastic telescopic rods 10. The first elastic telescopic rod 10 can ensure a normal interval between every two insulating sheets 9, facilitating the better insertion of the connection inserts of the busbar into the corresponding two conductive sheets 8 later, so that the conductive sheet 8 can better abut against the outer wall of the busbar insert. Specifically, two slide bars 13 are fixedly connected to the bottom end of the inner wall of the connection box 1. The two slide bars 13 are symmetrically distributed front and back at the bottom end of the inner wall of the connection box 1. Each insulating sheet 9 is slidably connected to the outer wall of the slide bar 13. A conductive sheet 8 is also fixedly installed inside the insulating sheet 9. The insulating sheet 9 is made of alumina ceramic material, which has a high melting point and can maintain good mechanical properties and insulating properties in a high-temperature environment. When the staff repairs the conductive sheet 8 later, it is convenient to take the conductive sheet 8 through the insulating sheet 9 to avoid accidental conduction. The conductive sheet 8 is made of platinum noble metal material. Platinum has good electrical conductivity, and the conductivity is about 9.4×106 S / m. It has excellent high-temperature resistance, with a high melting point. In busbar connectors in some high-temperature environments, the platinum conductive sheet 8 can operate normally without softening or performance degradation. Platinum also has strong corrosion resistance and can resist the corrosion of various strong acids and alkalis. In some special industrial environments, the platinum conductive sheet 8 can ensure the stability and reliability of power transmission and effectively avoid the occurrence of high-temperature short circuits. The outer wall of the connection box 1 is fixedly connected with a first connecting plate 2 and a second connecting plate 4. Both ends of the connection box 1 close to the first connecting plate 2 and the second connecting plate 4 are provided with a plurality of mating ports 5, and the plurality of mating ports 5 are arranged in an array from left to right on the outer wall of the connection box 1;

[0039] A power-off protection mechanism 101 that can cut off the power supply between the connection box 1 and the busbar is fixedly installed between the first connecting plate 2 and the connection box 1. A fixing mechanism 201 that can fixedly connect the busbar connection piece is also fixedly installed at the bottom of the connection box 1. A triggering mechanism 301 that triggers the power-off protection mechanism 101 is also fixedly installed at the bottom of the connection box 1. Two connecting blocks 7 are rotatably connected to the upper end of the second connecting plate 4 through pins. A return torsion spring is sleeved on the outer wall of the pin, and both ends of the return torsion spring are clamped with the outer wall of the connecting block 7 and the upper end of the second connecting plate 4 respectively. An installation nut 6 is threadedly connected inside each connecting block 7, and the connecting block 7 can be threadedly connected to the bottom of the corresponding busbar through the installation nut 6;

[0040] Embodiment 2: Please refer to Figure 3 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9As shown, the fixing mechanism 201 includes an installation circular frame 34. The bottom of the installation circular frame 34 is fixedly connected to the bottom of the connection box 1. Inside the installation circular frame 34, a ratchet wheel 33 is rotatably connected through a rotating shaft. Inside the installation circular frame 34, a plurality of connection boxes are also fixedly connected. Inside each connection box, a bevel tooth 35 with a reset function is slidably connected. The bevel tooth 35 has the same tooth shape as the teeth on the outer wall of the ratchet wheel 33. A sliding column is also fixedly connected to the outer wall of the bevel tooth 35. A fourth spring 36 is fixedly connected between each bevel tooth 35 and the corresponding connection box. Each fourth spring 36 is sleeved on the corresponding connection column. The outer wall of the bevel tooth 35 is mutually engaged with the outer wall of the ratchet wheel 33. The bottom of the ratchet wheel 33 is fixedly connected to a second recovery wheel 27. The bottom of the second recovery wheel 27 is fixedly connected to a first recovery wheel 26. A plurality of weight reduction openings are respectively formed inside the ratchet wheel 33, the second recovery wheel 27, and the first recovery wheel 26. The plurality of weight reduction openings are respectively distributed in a circular pattern inside the ratchet wheel 33, the second recovery wheel 27, and the first recovery wheel 26. The bottom of the first recovery wheel 26 is fixedly connected to a turning handle 22 through a main shaft. The turning handle 22 facilitates the staff to rotate the first recovery wheel 26. A first pulling rope 24 is wound around the outer wall of the second recovery wheel 27. Two third pulling ropes 40 are wound around the outer wall of the first recovery wheel 26. The free end of each third pulling rope 40 is fixedly connected to two second pulling ropes 28. Each two second pulling ropes 28 are fixedly connected to a corresponding insulating sheet 9. The two fixed insulating sheets 9 are located on the left and right sides inside the connection box 1. Please refer to Figure 3 , the outer wall of each third pulling rope 40 slidably penetrates through the corresponding insulating sheet 9. Three guiding blocks are fixedly connected to the bottom of the connection box 1. A sliding opening is formed inside each guiding block. The inside of each sliding opening is in contact with the outer wall of the corresponding first pulling rope 24 and the third pulling rope 40. The inner diameter of the sliding opening is large enough for the two third pulling ropes 40 to pass through simultaneously;

[0041] Please refer to Figures 3 to 6 , Figure 8 , Figure 9As shown, the power-off protection mechanism 101 includes a third elastic telescopic rod 20, which is rotatably connected to the upper end of the second connecting plate 4 through a rotating shaft, a reset torsion spring is clamped between the third elastic telescopic rod 20 and the upper end of the second connecting plate 4, and a second spring 21 is fixedly connected inside the third elastic telescopic rod 20, and a first spring 18 is fixedly connected to the upper end of the third elastic telescopic rod 20, and a matching round block 17 is fixedly connected to the upper end of the first spring 18, and a plurality of folding arms 19 are rotatably connected between the matching round block 17 and the third elastic telescopic rod 20, and the plurality of folding arms 19 are distributed in a circle between the matching round block 17 and the third elastic telescopic rod 20, and the elastic coefficient of the second spring 21 is greater than the elastic coefficient of the first spring 18, and the free end of the first pull rope 24 is fixedly connected to the bottom of the matching round block 17, and the outer wall of the first pull rope 24 is slidably penetrated through the third elastic telescopic rod. 20, two second elastic telescopic rods 14 are also fixedly connected to the bottom end of the inner wall of the connection box 1, and a roller 12 is rotatably connected between the two second elastic telescopic rods 14 through a rotating shaft. Specifically, when the two bus duct plug-ins are separated from the corresponding conductive sheets 8, it is noted that the roller 12 is in contact with the bottom of the bus duct plug-in, and the second elastic telescopic rod 14 is in a compressed and force-accumulating state. Relying on the overall gravity of the connection box 1, it rotates downward through the connecting block 7 and the second connecting plate 4. At this time, the second elastic telescopic rod 14 will release the stored force, and the two second elastic telescopic rods 14 will drive the roller 12 to reset. The resetting of the second elastic telescopic rod 14 will generate a thrust on the bus duct plug-in through the roller 12, thereby accelerating the rotation speed of the connection box 1, so that the conductive sheet 8 quickly separates from the abutment with the outer wall of the bus duct plug-in, accelerating the speed of power failure, and avoiding a short circuit time of too long and a fire.

[0042] See also Figures 3 to 4 , Figure 6 , Figure 10As shown, the triggering mechanism 301 includes a plurality of fourth elastic telescopic rods 23. The fourth elastic telescopic rods 23 are fixedly connected to the lower end of the connection box 1. The plurality of fourth elastic telescopic rods 23 are circumferentially distributed at the bottom of the connection box 1. A matching ring 39 is fixedly connected between all the fourth elastic telescopic rods 23. Each matching ring 39 and each helical tooth 35 are fixedly connected by a matching pull rope 38. All the matching pull ropes 38 are circumferentially distributed on the outer wall of the matching ring 39. Two first folding sleeves 15 are fixedly connected inside the connection box 1. Each first folding sleeve 15 is fixedly connected to the corresponding two insulating sheets 9. The two first folding sleeves 15 are fixedly connected by a copper pipe. Two second folding sleeves 11 are fixedly connected to both ends of the inner wall of the connection box 1. It should be noted that each second folding sleeve 11 is located below the outermost insert of the busbar insert. The extension distance of the second folding sleeve 11 is limited. When the second folding sleeve 11 extends, it can only make an auxiliary abutment against the corresponding conductive sheet 8. The second folding sleeve 11 and the first folding sleeve 15 are made of silicone rubber material, and the silicone rubber material can withstand a temperature of about three degrees. Each second folding sleeve 11 is fixedly connected and communicated with the corresponding first folding sleeve 15 by a copper pipe. Each fourth elastic telescopic rod 23 is fixedly connected to the corresponding second folding sleeve 11;

[0043] Please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, a bottom protection cover 3 is also fixedly connected to the bottom of the connection box 1. The rotary handle 22 is located at the bottom of the bottom protection cover 3. The main shaft rotates through the inside of the bottom protection cover 3 (not shown in the figure). A connection ring 25 is fixedly connected to the bottom end of the inner wall of the bottom protection cover 3 of the rotary handle 22. A plurality of third springs 31 are fixedly connected inside the connection ring 25. The plurality of third springs 31 are circumferentially distributed inside the connection ring 25. One end of each third spring 31 away from the connection ring 25 is fixedly connected to a bell 30. The bell 30 is in the shape of a "hemisphere". A rotating sleeve 29 is fixedly connected to the outer wall of the main shaft. The rotating sleeve 29 is located inside the bottom protection cover 3. A plurality of knocking rods 32 are fixedly connected to the outer wall of the rotating sleeve 29. The knocking rods 32 and the bells 30 are on the same horizontal plane. When a short circuit occurs between the insert of the busbar and the conductive sheet 8, when the first recovery wheel 26 rotates, the first recovery wheel 26 will drive the rotating sleeve 29 and all the knocking rods 32 to rotate through the main shaft. The knocking rods 32 will knock on all the bells 30 to give an alarm, indicating that a short circuit has occurred, which is more convenient for the staff to identify the location.

[0044] The working principle of the present invention is:

[0045] When the present invention is in use, align each mating port 5 with the inserts of two fixed busbars, and insert the busbar inserts into the connection box 1. At this time, the busbar inserts will be located between the corresponding two conductive sheets 8, and the outer walls of each busbar insert will be in contact with the outer walls of the corresponding conductive sheets 8. Then, thread the mounting nuts 6 onto the outer walls of the adjacent busbars. Next, pass all the mating round blocks 17, folding arms 19, and the third elastic telescopic rod 20 through another busbar socket, and then rotate the turning handle 22. The turning handle 22 will drive the first recovery wheel 26 and the second recovery wheel 27 to rotate simultaneously. The second recovery wheel 27 drives the ratchet wheel 33 to rotate. When the ratchet wheel 33 rotates, its outer wall will be in contact with the outer walls of all the inclined teeth 35. It should be noted that when the ratchet wheel 33 rotates, the inclined walls of the teeth on its outer wall will be in contact with the inclined walls of the inclined teeth 35. When the inclined teeth 35 are squeezed, the inclined teeth 35 will move into the connection box, compressing the fourth spring 36. When the teeth on the outer wall of the ratchet wheel 33 disengage from the outer wall of the inclined teeth 35, the fourth spring 36 will drive the inclined teeth 35 to quickly reset. When the ratchet wheel 33 rotates, it will also rotate and store energy for the second return torsion spring;

[0046] When the first recovery wheel 26 rotates, it will pull back and recover two third pulling ropes 40. Each third pulling rope 40 will pull two corresponding second pulling ropes 28, and every two second pulling ropes 28 will pull a corresponding insulating sheet 9. At this time, the two insulating sheets 9 will move towards each other, squeezing and clamping the corresponding conductive sheets 8. The two moving conductive sheets 8 will squeeze the corresponding first folding sleeve 15. The silicone oil inside the first folding sleeve 15 will enter the corresponding second folding sleeve 11. The extension of the second folding sleeve 11 will abut and squeeze the outer wall of the adjacent conductive sheet 8, and the squeezing force is small. It should be noted that at this time, the elastic coefficient of the fourth elastic telescopic rod 23 is greater than the internal pressure, and it will not extend, strengthening the fixation of the conductive sheet 8 and the insulating sheet 9, and completing the contact force between the conductive sheet 8 and the busbar insert. At the same time, when the second recovery wheel 27 also rotates together, the second recovery wheel 27 will pull the first pulling rope 24, and the first pulling rope 24 will pull the mating round block 17. Since the elastic coefficient of the first spring 18 is less than that of the second spring 21, the first spring 18 will contract first. When the mating round block 17 moves downward, it will bend all the folding arms 19. When the first pulling rope 24 continues to pull the first pulling rope 24, and the first spring 18 contracts to the limit, at this time, the third elastic telescopic rod 20 contracts. When the outer walls of all the folding arms 19 abut against the inner wall of the busbar, the limit fixation can be completed, and the limit fixation installation of the connection box 1 can be completed. It should be noted that when the outer walls of all the folding arms 19 abut against the inner wall of the busbar, the lengths of the second pulling rope 28, the third pulling rope 40, and the first pulling rope 24 when being pulled are just right and not affected;

[0047] When there is high temperature before a short circuit occurs between the busbar slot insert and the conductive sheet 8, or when abnormal high temperature occurs during daily use, the temperature will be transmitted to the first folding sleeve 15 and the second folding sleeve 11. When the silicone oil inside the first folding sleeve 15 and the second folding sleeve 11 expands due to high temperature, the silicone oil will enter the inside of the fourth elastic telescopic rod 23. At this time, the pressure is greater than the elastic coefficient of the fourth elastic telescopic rod 23. The fourth elastic telescopic rod 23 at this time will drive the mating ring 39 to move upward. The mating ring 39 will pull the helical teeth 35 through all the mating pull ropes 38. When the helical teeth 35 disengage from the outer wall of the ratchet wheel 33, the second reset torsion spring drives the ratchet wheel 33 to reset and rotate. The ratchet wheel 33 drives the first recovery wheel 26 and the second recovery wheel 27 to reset and rotate. At this time, the first pull rope 24 will lose the pull on the mating round block 17. The second spring 21 will drive the third elastic telescopic rod 20 to quickly reset, and the first spring 18 drives the mating round block 17 and the folding arm 19 to reset. When the folding arm 19 straightens, at this time, the folding arm 19, the first spring 18 and the mating round block 17 will disengage from the busbar socket. And at this time, when the second folding sleeve 11 and the first folding sleeve 15 expand due to heat, both the first folding sleeve 15 and the second folding sleeve 11 extend. The force they exert on the corresponding conductive sheet 8 is slight. The connection box 1 can rotate along the connection block 7 by its own and internal weight. The conductive sheet 8 will disengage from the abutment with the busbar slot insert. The second elastic telescopic rod 14 will also increase the force for the connection box 1 to rotate through the roller 12, completing disconnection and power-off;

[0048] When it is necessary to reconnect the connection box 1 to the two busbars, according to the above working principle, the connection can be completed, and the operation is simple and fast.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An in-line connector for a power busbar, comprising a connection box (1), characterized in that, A plurality of insulating sheets (9) are slidably connected inside the connection box (1). A conductive sheet (8) is fixedly connected inside the insulating sheet (9). The conductive sheet (8) is made of platinum noble metal. Platinum has good electrical conductivity, and its conductivity is about 9.4×10 6 S / m. It has excellent high-temperature resistance, with a high melting point. In the busbar connectors in some high-temperature environments, the platinum conductive sheet (8) can work normally without softening or performance degradation. Platinum also has strong corrosion resistance and can resist the corrosion of various strong acids and alkalis. In some special industrial environments, the platinum conductive sheet (8) can ensure the stability and reliability of power transmission. A first connecting plate (2) and a second connecting plate (4) are fixedly connected to the outer wall of the connection box (1); The connection box (1) is provided with a plurality of mating ports (5) at both ends close to the first connecting plate (2) and the second connecting plate (4). A power-off protection mechanism (101) capable of powering off the connection box (1) and the bus duct is fixedly installed between the first connecting plate (2) and the connection box (1). A fixing mechanism (201) capable of fixedly connecting the bus duct connecting piece is also fixedly installed at the bottom of the connection box (1). A triggering mechanism (301) for triggering the power-off protection mechanism (101) is also fixedly installed at the bottom of the connection box (1). Two connecting blocks (7) are rotatably connected to the upper end of the second connecting plate (4) by pins.

2. The inner inserter of a power busbar according to claim 1, characterized in that The fixing mechanism (201) includes a mounting circular frame (34). The bottom of the mounting circular frame (34) is fixedly connected to the bottom of the connection box (1). A ratchet wheel (33) is rotatably connected inside the mounting circular frame (34). A plurality of connection boxes are also fixedly connected inside the mounting circular frame (34).

3. The inner inserter of a power busbar according to claim 2, characterized in that, A helical tooth (35) with a reset function is slidably connected inside each connection box. The outer wall of the helical tooth (35) is engaged with the outer wall of the ratchet wheel (33). A second recovery wheel (27) is fixedly connected to the bottom of the ratchet wheel (33). A first recovery wheel (26) is fixedly connected to the bottom of the second recovery wheel (27). A first pulling rope (24) is wound around the outer wall of the second recovery wheel (27).

4. The inner inserter of a power busbar according to claim 3, characterized in that, Two third pulling ropes (40) are wound around the outer wall of the first recovery wheel (26). The free end of each third pulling rope (40) is fixedly connected to two second pulling ropes (28). Each two second pulling ropes (28) are fixedly connected to a corresponding insulating sheet (9). The outer wall of each third pulling rope (40) slidably passes through the corresponding insulating sheet (9).

5. The inner inserter of a power busbar according to claim 1, characterized in that, The power-off protection mechanism (101) includes a third elastic telescopic rod (20). The third elastic telescopic rod (20) is rotatably connected to the upper end of the second connecting plate (4). A second spring (21) is fixedly connected inside the third elastic telescopic rod (20).

6. The inner inserter of a power busbar according to claim 5, characterized in that, A first spring (18) is fixedly connected to the upper end of the third elastic telescopic rod (20). A mating circular block (17) is fixedly connected to the upper end of the first spring (18). A plurality of folding arms (19) are rotatably connected between the mating circular block (17) and the third elastic telescopic rod (20).

7. The inner inserter for a power busbar according to claim 3, characterized in that The free end of the first pulling rope (24) is fixedly connected to the bottom of the mating circular block (17). The outer wall of the first pulling rope (24) slidably passes through the inside of the third elastic telescopic rod (20). Two second elastic telescopic rods (14) are also fixedly connected to the bottom end of the inner wall of the connection box (1).

8. The inner inserter of a power busbar according to claim 1, characterized in that, The triggering mechanism (301) includes a plurality of fourth elastic telescopic rods (23). The fourth elastic telescopic rods (23) are fixedly connected to the lower end of the connection box (1).

9. The inner inserter of a power busbar according to claim 8, characterized in that, A cooperation ring (39) is fixedly connected between all the fourth elastic telescopic rods (23). The cooperation ring (39) is fixedly connected with each helical tooth (35) through a cooperation pull rope (38). Two first folding sleeves (15) are fixedly connected inside the connection box (1). Each first folding sleeve (15) is fixedly connected with the corresponding two insulating sheets (9). The two first folding sleeves (15) are fixedly connected through a copper pipe.

10. The inner inserter of a power busbar according to claim 9, characterized in that, Two second folding sleeves (11) are fixedly connected to both ends of the inner wall of the connection box (1). Each second folding sleeve (11) is fixedly connected and communicated with the corresponding first folding sleeve (15) through a copper pipe. Each fourth elastic telescopic rod (23) is fixedly connected with the corresponding second folding sleeve (11).

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