Current collector for slide wire

Abstract

The current collector comprises a junction box, a dust removal assembly and a heat dissipation assembly, a current collector assembly is installed on the outer side of the lower end of the junction box, a sliding contact line body is arranged on the outer side of the lower end of the current collector assembly, and a fixing frame is installed on the outer side of the lower end of the sliding contact line body in a clamped mode; a current-conducting plate is embedded in the lower end of the sliding contact line body, a fixing plate is installed on the outer side of one end of the current collector assembly, and extension plates are fixedly installed at the front end and the rear end of the fixing plate; a dust removal assembly located in the slide wire body is arranged on the inner side of the lower end of the extension plate. A heat dissipation assembly is arranged in the fixing frame. The invention belongs to the technical field of sliding contact lines, and aims to solve the problem that the prior art does not have a relatively good dust removal function and a relatively good heat dissipation function at the same time. The dust removal and heat dissipation device has the advantages of having a good dust removal function and a good heat dissipation function at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of busbars, and in particular to a current collector for busbars. Background Art

[0002] The busbar is a device used for power transmission in mobile equipment. It is widely used in cranes, automated production lines, electric vehicles and other occasions. The performance of the current collector, as a key component of the busbar system, directly affects the stability and service life of the entire system. The traditional current collector is usually a rectangular block structure, with one end of the brush installed in the collector housing, and the other end of the brush exposed outside the collector housing. A compression spring is installed between the collector housing and the brush. The compression spring pushes the brush toward the busbar outside the collector housing, so that a certain contact pressure is maintained between the contact surface of the brush and the busbar, thereby realizing the connection and power supply between the brush and the busbar.

[0003] For example, a busbar collector for a construction elevator with a Chinese authorization publication number of CN 221262923 U discloses a busbar collector that can not only ensure the power density, but also save the workload of arranging multiple square tube guide rails side by side, saving labor costs; at the same time, it can also make the brushes move more smoothly on the guide rails, and can also make the brushes work uniformly and consistently, which is conducive to stable and reliable power supply.

[0004] However, most of the current collectors for busbars do not have a good dust removal function, which means that once dust enters, it will not only affect the contact performance between the brush head and the busbar body, resulting in poor contact and increased resistance, which can easily cause electrical faults such as short circuits and arcs, but also do not have a good heat dissipation function, which means that the heat generated when the brush head contacts the busbar body and the conductive plate cannot be effectively discharged, which results in certain defects. Summary of the invention

[0005] To this end, the present invention provides a current collector for a busbar to solve the problem that the existing current collector does not have a good dust removal function and does not have a good heat dissipation function.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A current collector for a busbar, comprising a junction box, a dust removal assembly and a heat dissipation assembly, wherein a current collector assembly is installed on the outer side of the lower end of the junction box, a busbar body is arranged on the outer side of the lower end of the current collector assembly, a fixing frame is clamped and installed on the outer side of the lower end of the busbar body, a conductive plate is inlaid inside the lower end of the busbar body, a fixing plate is installed on the outer side of one end of the current collector assembly, and extension plates are fixedly installed at both the front and rear ends of the fixing plate;

[0008] A dust removal component located inside the busbar body is arranged on the inner side of the lower end of the extension plate;

[0009] A heat dissipation component is arranged inside the fixing frame, and a prefabricated through hole is penetrated inside the upper end of the fixing frame, a partition is installed inside the lower end of the prefabricated through hole, and a torsion spring shaft is fixedly installed inside the partition.

[0010] Furthermore, the collector assembly includes a swing arm, a connecting block, a buffer spring, a fixed block and a brush head. The swing arm is respectively installed on the front and rear sides of the lower end of the junction box, and a connecting block is installed on the outer side of the lower end of the swing arm, and a buffer spring is installed through the interior of the connecting block.

[0011] Furthermore, a fixing block is fixedly installed on the outer side of the lower end of the buffer spring, and a brush head is fixedly installed on the outer side of the fixing block by screws, and the lower end of the brush head is located inside the busbar body and contacts the conductive plate.

[0012] Furthermore, the dust removal assembly includes a mounting rod, a connecting side plate, a connecting bottom plate, a first scraper and a second scraper. The mounting rod is rotatably mounted inside the extension plate, and a fixing bolt is provided at the connection between the mounting rod and the extension plate. The connecting side plate is fixedly mounted on the outer side of the lower end of the mounting rod.

[0013] Furthermore, a connecting base plate is fixedly installed at the lower end of the connecting side plate by screws, and a first scraper blade is fixedly installed on one side of the connecting base plate close to the port of the fixing frame, and a second scraper blade is integrally fixedly installed on both the front and rear sides of the first scraper blade, and the cross-section of the first scraper blade is "V" shaped.

[0014] Furthermore, a guide wheel is rotatably mounted on the outer side of one end of the middle portion of the extension plate close to the busbar body, and a prefabricated groove matched with the guide wheel is opened inside the side of the busbar body.

[0015] Furthermore, the heat dissipation assembly includes a heat dissipation cavity, a fan, a heat conductive block and an air inlet. The interior of the fixed frame is provided with a heat dissipation cavity, and heat conductive blocks are installed at equal intervals inside the heat dissipation cavity. The upper end of the heat conductive block extends to the outer side of the lower end of the conductive plate.

[0016] Furthermore, a fan is installed on the outside of the fixing frame, and an air inlet is opened through the middle lower end of the fixing frame, and dust filters are installed inside the fixing frame and in the middle of the lower end of the fixing frame respectively.

[0017] Furthermore, a transmission rack is fixedly mounted on the lower end of the extension plate, and the lower end of the transmission rack extends to the interior of the fixing frame, and the transmission rack is connected to the busbar body and the fixing frame in a sliding manner.

[0018] Furthermore, a transmission gear is fixedly mounted on the outer side of the torsion spring shaft, and the transmission gear is connected to the transmission rack in a meshing manner, and the torsion spring shaft forms a rotating structure in the fixed frame.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. A first scraper is fixedly installed on one side of the bottom plate near the port of the fixed frame, and a second scraper is fixedly installed on both the front and rear sides of the first scraper. The first scraper contacts the conductive plate, and the second scraper contacts the inner wall of the busbar body. When the brush head moves back and forth in the busbar body, the first scraper and the second scraper can scrape off the dust adhering to the outer side of the upper end of the conductive plate and the inner wall of the busbar body, respectively, to prevent the dust from affecting the contact performance between the brush head and the busbar body and the conductive plate. The cross section of the first scraper is "V" shaped, which is convenient for increasing its contact area with the conductive plate and improving the dust removal effect;

[0021] 2. The heat generated by the contact between the brush head and the conductive plate is conducted to the inside of the heat dissipation cavity through the heat conduction block. The fan is turned on. At this time, the partition is closed to the prefabricated through hole, so that the fan draws air into the heat dissipation cavity through the air inlet, speeding up the air flow speed inside the heat dissipation cavity, thereby facilitating the heat dissipation work of the heat conducted by the heat conduction block, and then playing a better heat dissipation function for the conductive plate, avoiding the heat generated when the brush head contacts the busbar body and the conductive plate cannot be effectively discharged, affecting the conductive effect of the brush head;

[0022] 3. The transmission rack is first meshed with the transmission gear, thereby driving the transmission gear and the torsion spring shaft to rotate in the fixed frame. At this time, the torsion spring shaft drives the partition to rotate downward, so that the prefabricated through hole is in an open state. At the same time, the partition can block the heat dissipation cavity, so that the heat dissipation cavity is in a non-circulating state. After the prefabricated through hole is opened, the connecting bottom plate, the first scraper and the second scraper are moved to the top of the prefabricated through hole. At this time, the fan can suck the airflow near the prefabricated through hole downward into the fixed frame, and suck the dust on the outer surface of the first scraper and the second scraper to avoid the accumulation of cleaned dust, thereby facilitating the first scraper and the second scraper to play the role of non-stop cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, and dimensional ratios of certain units based on the technical concepts and exemplary drawings disclosed in the present application.

[0024] Figure 1A front cross-sectional view of a current collector for a busbar provided in some embodiments of the present invention.

[0025] Figure 2 A side cross-sectional view of a current collector for a busbar provided in some embodiments of the present invention.

[0026] Figure 3 A top view of the connection between a partition and a torsion spring shaft of a current collector for a busbar provided in some embodiments of the present invention.

[0027] Figure 4 A top view of the connection between a brush head of a current collector for a bus bar and a bus bar body provided in some embodiments of the present invention.

[0028] Figure 5 A side cross-sectional view of the connection between a trolley bar collector's extension plate and a mounting rod provided in some embodiments of the present invention.

[0029] Figure 6 A top view of a first scraper of a busbar collector provided in some embodiments of the present invention in a cleaning state.

[0030] Figure 7 A side cross-sectional view showing the connection between a transmission rack and a transmission gear of a current collector for a busbar provided in some embodiments of the present invention.

[0031] Figure 8 A front cross-sectional view of a prefabricated through hole of a current collector for a busbar provided in some embodiments of the present invention in an open state.

[0032] Fig. 9 A current collector for a busbar provided in some embodiments of the present invention Figure 1 Enlarged view of point A in the middle.

[0033] Fig.10 A current collector for a busbar provided in some embodiments of the present invention Figure 2 Enlarged view of point B in the middle.

[0034] Fig.11 A current collector for a busbar provided in some embodiments of the present invention Figure 3 Enlarged view of center C.

[0035] Description of reference numerals:

[0036] 1. Junction box; 2. Swing arm; 3. Connection block; 4. Buffer spring; 5. Fixed block; 6. Brush head; 7. Busbar body; 8. Fixed frame; 9. Conductive plate; 10. Fixed plate; 11. Extension plate; 12. Mounting rod; 13. Connecting side plate; 14. Connecting bottom plate; 15. First scraper; 16. Second scraper; 17. Prefabricated groove; 18. Guide wheel; 19. Fixing bolt; 20. Transmission rack; 21. Prefabricated through hole; 22. Heat dissipation cavity; 23. Fan; 24. Dust filter; 25. Guide groove; 26. Collection box; 27. Partition; 28. Torsion spring shaft; 29. ​​Transmission gear; 30. Heat conduction block; 31. Air inlet. DETAILED DESCRIPTION

[0037] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0038] like Figures 1 to 11 As shown, a current collector for a busbar in an embodiment of the present invention comprises a junction box 1, a dust removal assembly and a heat dissipation assembly, a current collector assembly is installed on the outer side of the lower end of the junction box 1, a busbar body 7 is arranged on the outer side of the lower end of the current collector assembly, a conductive plate 9 is inlaid inside the lower end of the busbar body 7, the current collector assembly comprises a swing arm 2, a connecting block 3, a buffer spring 4, a fixing block 5 and a brush head 6, the swing arm 2 is respectively installed on the front and rear sides of the lower end of the junction box 1, and a connecting block 3 is installed on the outer side of the lower end of the swing arm 2, and a buffer spring 4 is installed through the inside of the connecting block 3.

[0039] Among them, a fixing block 5 is fixedly installed on the outer side of the lower end of the buffer spring 4, and a brush head 6 is fixedly installed on the outer side of the fixing block 5 by screws. The lower end of the brush head 6 is located inside the busbar body 7 and contacts with the conductive plate 9. A compression spring is provided at the connection between the junction box 1 and the swing arm 2. The compression spring pushes the connecting block 3, the buffer spring 4, the fixing block 5 and the brush head 6 toward the busbar body 7, so that a certain contact pressure is maintained between the contact surface of the brush head 6 and the busbar body 7 and the conductive plate 9, thereby realizing the connection and power supply between the brush head 6 and the busbar body 7. The brush head 6 moves back and forth on the conductive plate 9 to lead electricity to the external device. Specifically, the brush head 6 is connected to the junction box 1 through a wire, and then the wire is connected to the external device. This part belongs to the prior art and will not be elaborated here.

[0040] A fixing frame 8 is mounted on the outer side of the lower end of the busbar body 7, a heat dissipation component is arranged inside the fixing frame 8, and a prefabricated through hole 21 is penetrated through the upper end of the fixing frame 8, a partition 27 is installed inside the lower end of the prefabricated through hole 21, and a torsion spring shaft 28 is fixedly installed inside the partition 27.

[0041] Among them, the fixing frame 8 plays a role in fixing and installing multiple groups of busbar bodies 7, which facilitates the installation of two collector components at both ends of each group through the busbar body 7, so that the two brush heads 6 are pressed into the same busbar body 7, which is convenient for improving the overall conductive effect.

[0042] At the same time, it is convenient to collect and clean the dust scraped off by the subsequent dust removal components through the prefabricated through hole 21 to avoid dust accumulation affecting the overall conductive effect, and it is convenient to open and close the prefabricated through hole 21 through the partition 27 and the torsion spring shaft 28 to avoid dust flying and causing secondary impact on the busbar body 7.

[0043] The heat dissipation assembly includes a heat dissipation cavity 22, a fan 23, a heat conductive block 30 and an air inlet 31. The heat dissipation cavity 22 is opened inside the fixed frame 8, and the heat conductive blocks 30 are installed at equal intervals inside the heat dissipation cavity 22. The upper end of the heat conductive block 30 extends to the outer side of the lower end of the conductive plate 9. The fan 23 is installed on the outer side of the fixed frame 8, and the air inlet 31 is opened through the middle lower end of the fixed frame 8.

[0044] Among them, dust filters 24 are installed inside the fixing frame 8 and in the middle of the lower end of the fixing frame 8, respectively, and the dust filters 24 are respectively located outside the fan 23 and the air inlet 31, so as to filter the tiny particles and pollutants in the air and prevent foreign matter from entering and affecting the normal operation of the fan 23. The outside air is sucked into the heat dissipation cavity 22 through the air inlet 31 by the fan 23, and the width of the heat dissipation cavity 22 is larger than the width of the heat conduction block 30, so that the air can flow in the heat dissipation cavity 22, taking away the heat of the conductive plate 9 derived from the heat conduction block 30, and avoiding the heat generated when the brush head 6 contacts the busbar body 7 and the conductive plate 9 cannot be effectively discharged.

[0045] At the same time, a guide groove 25 is opened inside the lower end of the fixing frame 8 and is located directly below the prefabricated through hole 21, and a collection box 26 located below the guide groove 25 is fixedly installed on the outer side of the lower end of the fixing frame 8 by screws, so that the dust scraped off by the dust removal assembly can be guided to the collection box 26 through the guide groove 25, thereby facilitating collection.

[0046] A fixing plate 10 is installed on the outer side of one end of the collector assembly, and extension plates 11 are fixedly installed on both front and rear ends of the fixing plate 10. A dust removal assembly located in the busbar body 7 is arranged on the inner side of the lower end of the extension plate 11. The dust removal assembly includes a mounting rod 12, a connecting side plate 13, a connecting bottom plate 14, a first scraper 15 and a second scraper 16. A connecting side plate 13 is fixedly installed on the outer side of the lower end of the mounting rod 12.

[0047] Among them, the lower end of the connecting side plate 13 is fixed with a connecting bottom plate 14 by screws, the fixing plate 10 is plugged and arranged on the outer side of the upper end of the connecting block 3, and screws are arranged at the connection between the fixing plate 10 and the connecting block 3, so as to better fix the fixing plate 10 and the extension plate 11, thereby facilitating the installation of the connecting side plate 13 and the connecting bottom plate 14 on the outer side of the ports of the two groups of brush heads 6 close to the fixing frame 8 respectively.

[0048] At the same time, a first scraper 15 is fixedly installed on one side of the connecting bottom plate 14 close to the port of the fixing frame 8, and a second scraper 16 is integrally fixedly installed on both the front and rear sides of the first scraper 15. The first scraper 15 contacts the conductive plate 9, and the second scraper 16 contacts the inner side wall of the busbar body 7, so that when the brush head 6 moves back and forth in the busbar body 7, the first scraper 15 and the second scraper 16 can respectively scrape off the dust adhering to the outer side of the upper end of the conductive plate 9 and the inner side wall of the busbar body 7, so as to prevent the dust from affecting the contact performance between the brush head 6 and the busbar body 7 and the conductive plate 9. The cross section of the first scraper 15 is "V" shaped, which is convenient for increasing its contact area with the conductive plate 9 and improving the dust removal effect.

[0049] The mounting rod 12 is rotatably mounted inside the extension plate 11, and a fixing bolt 19 is provided at the connection between the mounting rod 12 and the extension plate 11, so that the mounting rod 12 can be fixed by the fixing bolt 19. The fixing bolt 19 is rotated to make it lose its fixing effect on the mounting rod 12, and then the mounting rod 12 is rotated to make the connecting bottom plate 14, the first scraper 15 and the second scraper 16 unscrewed from the busbar body 7, so that the first scraper 15 and the second scraper 16 can be easily disassembled and replaced. After the installation is completed, the connecting bottom plate 14, the first scraper 15 and the second scraper 16 are screwed into the busbar body 7, and the fixing bolt 19 is rotated in the opposite direction to fix the mounting rod 12.

[0050] A guide wheel 18 is rotatably installed on the outer side of one end of the middle part of the extension plate 11 close to the busbar body 7, and a prefabricated groove 17 compatible with the guide wheel 18 is opened inside the side of the busbar body 7, so that the brush head 6 can drive the extension plate 11 to move synchronously when moving, and the guide wheel 18 can roll in the prefabricated groove 17, thereby guiding the brush head 6 and further improving the movement effect of the brush head 6.

[0051] A transmission rack 20 is fixedly installed at the lower end of the extension plate 11, and the lower end of the transmission rack 20 extends to the inside of the fixed frame 8, and the transmission rack 20 is connected to the busbar body 7 and the fixed frame 8 in a sliding manner, and a transmission gear 29 is fixedly installed on the outer side of the torsion spring shaft 28, and the transmission gear 29 is connected to the transmission rack 20 in a meshing manner.

[0052] Among them, the torsion spring shaft 28 constitutes a rotating structure in the fixed frame 8, which is convenient for driving the extension plate 11 and the transmission rack 20 to move synchronously in the busbar body 7 and the fixed frame 8 through the brush head 6, and the partition 27 and the torsion spring shaft 28 are located near the port of the fixed frame 8. When the brush head 6 moves to the vicinity of the port, the transmission rack 20 first meshes with the transmission gear 29, thereby driving the transmission gear 29 and the torsion spring shaft 28 to rotate in the fixed frame 8. At this time, the torsion spring shaft 28 drives the partition 27 to rotate downward, so that the prefabricated through hole 21 is in an open state. At this time, the partition 27 can block the heat dissipation cavity 22, and at the same time, the connecting bottom plate 14, the first scraper 15 and the second scraper 16 are moved to the top of the prefabricated through hole 21, so that the fan 23 can suck the airflow near the prefabricated through hole 21 downward into the fixed frame 8, and suck the dust on the outer surface of the first scraper 15 and the second scraper 16, so as to facilitate the first scraper 15 and the second scraper 16 to play a role in non-stop cleaning;

[0053] At the same time, the size of the prefabricated through hole 21 is larger than the size of the widest part of the middle of the first scraper 15 , so as to improve the cleaning effect of the first scraper 15 and enable the dust cleaned by the first scraper 15 to fully fall into the prefabricated through hole 21 .

[0054] How it works

[0055] First, multiple groups of busbar bodies 7 are sequentially snap-fitted and installed inside the upper end of the fixing frame 8, and then the fixing frame 8 is fixedly installed at the designated position by screws. The brush head 6 is fixedly installed on the outer side of the lower end of the fixing block 5 by screws, and the compression spring pushes the connecting block 3, the buffer spring 4, the fixing block 5 and the brush head 6 toward the busbar body 7, so that a certain contact pressure is maintained between the brush head 6 and the contact surface of the busbar body 7 and the conductive plate 9, thereby realizing the connection and power supply between the brush head 6 and the busbar body 7, and the brush head 6 moves back and forth on the conductive plate 9 to lead electricity to external devices.

[0056] When the brush head 6 moves back and forth on the conductive plate 9, it drives the extension plate 11, the junction box 1, the connecting side plate 13 and the connecting bottom plate 14 to move synchronously, so that the connecting bottom plate 14 and the connecting side plate 13 drive the first scraper 15 and the second scraper 16 to move synchronously while moving. At this time, the first scraper 15 contacts the conductive plate 9, and the second scraper 16 contacts the inner wall of the busbar body 7, so that the first scraper 15 and the second scraper 16 can respectively scrape off the dust adhered to the outer side of the upper end of the conductive plate 9 and the inner wall of the busbar body 7, so as to prevent the dust from affecting the contact performance between the brush head 6 and the busbar body 7 and the conductive plate 9.

[0057] When the brush head 6 moves, the heat generated by the contact between the brush head 6 and the conductive plate 9 is conducted to the inside of the heat dissipation cavity 22 through the heat conductive block 30, and the fan 23 is turned on. At this time, the partition 27 is in a closed state with respect to the prefabricated through hole 21, so that the fan 23 draws air into the inside of the heat dissipation cavity 22 through the air inlet 31, thereby accelerating the air flow speed inside the heat dissipation cavity 22, thereby facilitating the heat dissipation of the heat conducted out by the heat conductive block 30, and further achieving a better heat dissipation function for the conductive plate 9, thereby avoiding the heat generated when the brush head 6 contacts the busbar body 7 and the conductive plate 9 cannot be effectively discharged, thereby affecting the conductive effect of the brush head 6.

[0058] When the brush head 6 drives the extension plate 11 to move to the vicinity of the port of the fixed frame 8, the transmission rack 20 first meshes with the transmission gear 29, thereby driving the transmission gear 29 and the torsion spring shaft 28 to rotate in the fixed frame 8. At this time, the torsion spring shaft 28 drives the partition 27 to rotate downward, so that the prefabricated through hole 21 is in an open state. At the same time, the partition 27 can block the heat dissipation cavity 22, so that the heat dissipation cavity 22 is in a non-circulating state. After the prefabricated through hole 21 is opened, the connecting bottom plate 14, the first scraper 15 and the second scraper 16 move to the top of the prefabricated through hole 21. At this time, the fan 23 can suck the airflow near the prefabricated through hole 21 downward into the fixed frame 8, and suck the dust on the outer surface of the first scraper 15 and the second scraper 16 to avoid the accumulation of cleaned dust, thereby facilitating the first scraper 15 and the second scraper 16 to play the role of non-stop cleaning.

[0059] When the brush head 6 is away from the port of the fixed frame 8, the transmission rack 20 meshes with the transmission gear 29 in the reverse direction, driving the partition 27 and the torsion spring shaft 28 to rotate to their original state. At the same time, the torsion spring restores its deformation to support the torsion spring shaft 28 and the partition 27, so that the partition 27 can tightly close the prefabricated through hole 21. At this time, the fan 23 can accelerate the air flow speed in the heat dissipation cavity 22 again to perform heat dissipation work, so that the whole can control the different states of the partition 27 and combine the fan 23 to achieve alternating dust removal and heat dissipation. This not only improves the overall reliability and durability, but also reduces maintenance costs and energy consumption.

[0060] After the inhaled dust enters the heat dissipation cavity 22, the dust filter 24 filters the dust and causes the dust to fall downward into the guide groove 25. The guide groove 25 guides the dust scraped by the dust removal assembly to the collection box 26, thereby facilitating collection.

[0061] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A current collector for a busbar, comprising a junction box (1), a dust removal component and a heat dissipation component, characterized in that: A collector assembly is installed on the outer side of the lower end of the junction box (1), a busbar body (7) is arranged on the outer side of the lower end of the collector assembly, a fixing frame (8) is mounted on the outer side of the lower end of the busbar body (7), a conductive plate (9) is embedded inside the lower end of the busbar body (7), a fixing plate (10) is installed on the outer side of one end of the collector assembly, and extension plates (11) are fixedly installed at both the front and rear ends of the fixing plate (10); A dust removal component located inside the busbar body (7) is arranged on the inner side of the lower end of the extension plate (11); A heat dissipation component is arranged inside the fixing frame (8), and a prefabricated through hole (21) is penetrated inside the upper end of the fixing frame (8), a partition (27) is installed inside the lower end of the prefabricated through hole (21), and a torsion spring shaft (28) is fixedly installed inside the partition (27).

2. A current collector for a busbar according to claim 1, characterized in that: The collector assembly comprises a swing arm (2), a connecting block (3), a buffer spring (4), a fixing block (5) and a brush head (6); the swing arm (2) is respectively mounted on the front and rear sides of the lower end of the junction box (1); the connecting block (3) is mounted on the outer side of the lower end of the swing arm (2); and the buffer spring (4) is installed through the interior of the connecting block (3).

3. A current collector for a busbar according to claim 2, characterized in that: A fixing block (5) is fixedly mounted on the outer side of the lower end of the buffer spring (4), and a brush head (6) is fixedly mounted on the outer side of the fixing block (5) by means of screws, wherein the lower end of the brush head (6) is located inside the busbar body (7) and in contact with the conductive plate (9).

4. A current collector for a busbar according to claim 1, characterized in that: The dust removal assembly comprises a mounting rod (12), a connecting side plate (13), a connecting bottom plate (14), a first scraper (15) and a second scraper (16); the mounting rod (12) is rotatably mounted inside the extension plate (11), and a fixing bolt (19) is provided at the connection between the mounting rod (12) and the extension plate (11); the connecting side plate (13) is fixedly mounted on the outer side of the lower end of the mounting rod (12).

5. A current collector for a busbar according to claim 4, characterized in that: The lower end of the connecting side plate (13) is fixedly mounted with a connecting bottom plate (14) by means of screws, and a first scraper (15) is fixedly mounted on one side of the connecting bottom plate (14) close to the port of the fixing frame (8), and a second scraper (16) is integrally fixedly mounted on both the front and rear sides of the first scraper (15), and the cross section of the first scraper (15) is "V"-shaped.

6. A current collector for a busbar according to claim 1, characterized in that: A guide wheel (18) is rotatably mounted on the outer side of one end of the middle portion of the extension plate (11) close to the busbar body (7), and a prefabricated groove (17) adapted to the guide wheel (18) is provided inside the side of the busbar body (7).

7. A current collector for a busbar according to claim 1, characterized in that: The heat dissipation component comprises a heat dissipation cavity (22), a fan (23), a heat conduction block (30) and an air inlet (31); the interior of the fixing frame (8) is provided with a heat dissipation cavity (22), and the heat conduction blocks (30) are installed at equal intervals inside the heat dissipation cavity (22); the upper ends of the heat conduction blocks (30) extend to the outer side of the lower end of the conductive plate (9).

8. A current collector for a busbar according to claim 7, characterized in that: A fan (23) is installed on the outside of the fixing frame (8), and an air inlet (31) is opened through the middle lower end of the fixing frame (8). A dust filter (24) is installed inside the fixing frame (8) and in the middle of the lower end of the fixing frame (8), respectively.

9. A current collector for a busbar according to claim 1, characterized in that: A transmission rack (20) is fixedly mounted on the lower end of the extension plate (11), and the lower end of the transmission rack (20) extends into the interior of the fixing frame (8), and the transmission rack (20) is connected to the busbar body (7) and the fixing frame (8) in a sliding manner.

10. A current collector for a busbar according to claim 1, characterized in that: A transmission gear (29) is fixedly mounted on the outer side of the torsion spring shaft (28), and the transmission gear (29) is connected to the transmission rack (20) in a meshing manner. The torsion spring shaft (28) forms a rotating structure in the fixed frame (8).

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