Vehicle end connection junction box

Abstract

The utility model relates to the technical field of railway traffic, in particular to a vehicle end connection junction box which comprises a box body, supporting plates are fixed to the tops of the two sides of the inner wall of the box body, installation tables distributed at equal intervals are installed at the bottoms of the two supporting plates, and insulating ceramic bases are installed in the middles of the bottoms of the installation tables. Copper bars are mounted at the bottoms of the insulating ceramic seats, and first mounting holes are formed in the tops of the two ends of the box body. According to the utility model, airflow generated when a railway vehicle runs can be blown into the whole junction box, ventilation and heat dissipation processing can be effectively carried out on the interior of the junction box, normal work of the junction box is ensured, transverse wind in the same direction as the running direction is changed into longitudinal wind perpendicular to the running direction, and thus the service life of the junction box is prolonged. The problem that parts in the junction box are damaged due to the fact that impact force of transverse wind is too large is solved, impurities and water accompanied by the transverse wind are prevented from entering the junction box to affect normal work of the parts, and the use efficiency of the junction box is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of railway transportation, in particular to a vehicle end connection distribution box. Background Art

[0002] The lower part of existing railway vehicles requires a large number of cables and signal lines to ensure the normal operation of the vehicle. The undercarriage junction box is a facility used to route and protect these cables so that the cables and signal lines can be distributed to the required parts of the vehicle. The junction box is connected to the metal pipe for laying cables with a flange, and the metal pipe is fixed to the main beam with a pipe clamp. The junction box will add a lifting lug to the side without the metal pipe to fix it to the main beam to increase safety and stability, and an inspection cover will be opened at the bottom of the junction box to facilitate the operation and inspection of wiring.

[0003] After searching, a high-voltage distribution box under a subway vehicle with a patent publication number of CN208401519U is found. The utility model has a simple structure, low cost and strong practicality, and comprises a box body, a cover plate A is arranged on the side of the box body, a cover plate B is arranged on the other side of the box body, a copper bus A is arranged on one side of the box body, a copper bus B is arranged on the other side of the box body, a rubber strip is arranged at one corner of the box body, an insulator is arranged on one side of the copper bus A, a terminal A is arranged on one side of the insulator, a terminal B is arranged on one side of the terminal A, a cover plate C is arranged on the bottom end of the rubber strip, a hexagonal head bolt is arranged on one side of the insulator, and a washer is arranged on one side of the hexagonal head bolt.

[0004] In the process of implementing the above solution, it was found that the following problems existed in the prior art and have not been well solved: when the under-vehicle junction box works for a long time, a certain temperature will be generated inside it, and the existing junction box does not have a good heat dissipation structure inside, which will affect the normal use of the junction box. Therefore, it is urgent to design a vehicle-end connection junction box to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a vehicle-end connection distribution box to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vehicle-end connection junction box comprises a box body, support plates are fixed to the tops of both sides of the inner wall of the box body, and mounting platforms with equal distances are installed at the bottoms of the two support plates, insulating ceramic seats are installed at the middle positions of the bottoms of the mounting platforms, and copper bars are installed at the bottoms of the insulating ceramic seats, first mounting holes are opened at the tops of both ends of the box body, and a transverse air duct consistent with the driving direction of the vehicle is installed on the inner wall of the first mounting hole, and two second mounting holes are opened on the other side of the box body, and the inner walls of the second mounting holes are installed between the outer walls of the transverse air duct There is a longitudinal wind tube perpendicular to the direction of vehicle travel, a connecting hole is opened in the middle position of one end of the longitudinal wind tube, and two through holes communicating with the connecting hole are opened on the transverse wind tube, and ventilation holes distributed at equal distances are opened on the outer wall of the longitudinal wind tube close to the transverse wind tube, a second mounting frame is fixed to one side of the inner wall of the longitudinal wind tube, and the inner wall of the second mounting frame is rotatably connected to the inner wall of the connecting hole by a transmission shaft passing through the through hole through a bearing, and fan blades are installed on the outer walls of the two transmission shafts, and the blowing directions of the two fan blades are opposite, and the same driving assembly is arranged at one end of the two transmission shafts.

[0008] Furthermore, the driving assembly includes a first mounting frame installed at both ends of the inner wall of the transverse wind tube, and the middle position of the first mounting frame is rotatably connected to the main shaft, turbine blades are installed on both sides of the outer wall of the main shaft, mounting shells are installed on both sides of the inner wall of the transverse wind tube, and the mounting shells are connected to the through hole, one end of the transmission shaft extends to the interior of the mounting shell, one end of the transmission shaft and the outer wall of the main shaft are installed with bevel gears, and two adjacent bevel gears are meshed, the bevel gears are located inside the mounting shell, and the mounting shell is provided with a through hole for the main shaft to pass through.

[0009] Furthermore, a dustproof net is installed at the other end of the longitudinal air duct.

[0010] Furthermore, a line inlet is provided on one side of the box body, and a line inlet pipe is installed on one side of the line inlet, and line branching ports distributed at equal distances are provided on the other side of the box body.

[0011] Furthermore, a bottom cover is hingedly connected to the bottom of the box body, and a lock is provided on the bottom cover, and the bottom cover is fixed to the box body through the lock.

[0012] Furthermore, a grounding wire is installed between the inner wall of the box body and the top of the bottom cover.

[0013] Furthermore, a lifting lug is installed on one side of the box body close to the cable inlet.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, the entire vehicle-end connection junction box can be installed on the metal pipe and the main beam for laying cables by using the cooperation of the lifting lug and the inlet pipe, so as to increase safety and stability, realize the performance of easy disassembly and assembly, and the bottom cover is arranged at the bottom of the box body, so that an opening is opened at the bottom of the junction box, which is convenient for operation and inspection of wiring;

[0016] In the utility model, the airflow generated when the railway vehicle is running can be blown into the interior of the entire junction box through the cooperation of the transverse wind tube, the longitudinal wind tube, the fan blades and the driving assembly, etc., which can effectively ventilate and dissipate heat inside the junction box to ensure the normal operation of the junction box. On the other hand, when the railway vehicle is running, the transverse wind in the same direction as the running direction can be converted into the longitudinal wind perpendicular to the running direction, avoiding the problem of damage to the internal parts of the junction box caused by excessive impact of the transverse wind, and preventing impurities and moisture accompanied by the transverse wind from entering the junction box to affect the normal operation of the parts, thereby ensuring the use efficiency of the junction box.

[0017] In the utility model, since the blowing directions of the two fan blades are opposite, the ventilation and heat dissipation functions can be achieved during the reciprocating movement of the railway vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a vehicle-end connection junction box.

[0019] Figure 2 This is a bottom view of a vehicle-end connection junction box.

[0020] Figure 3 This is a diagram of the open box of a vehicle-end connection junction box.

[0021] Figure 4 The present invention is a cross-sectional view of a vehicle-end connection junction box.

[0022] Figure 5 The present invention is a schematic diagram of the structure of a copper busbar and an insulating ceramic base for connecting a junction box at the vehicle end.

[0023] Figure 6 The diagram is a schematic diagram of the turbine blade and vent structure of a vehicle-end connection junction box.

[0024] Figure 7 The present invention is a cross-sectional view of a transverse air duct and a longitudinal air duct of a vehicle-end connection junction box.

[0025] In the figure: 1. Box body; 2. Bottom cover; 3. Inlet pipe; 4. Lifting ear; 5. Horizontal air duct; 6. Longitudinal air duct; 7. Branching port; 8. Dust screen; 9. Support plate; 10. Mounting table; 11. Inlet port; 12. Copper busbar; 13. Grounding wire; 14. First mounting hole; 15. Second mounting hole; 16. Insulating ceramic seat; 17. First mounting frame; 18. Turbine blades; 19. Mounting shell; 20. Main shaft; 21. Ventilation port; 22. Second mounting frame; 23. Transmission shaft; 24. Fan blades; 25. Bevel gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 7In the embodiment of the utility model, a vehicle-end connection junction box includes a box body 1, support plates 9 are fixed to the top of both sides of the inner wall of the box body 1, and the bottom of the two support plates 9 is installed with mounting platforms 10 distributed at equal distances, and the middle position of the bottom of the mounting platform 10 is installed with an insulating ceramic seat 16, and the bottom of the insulating ceramic seat 16 is installed with a copper bar 12, the top of both ends of the box body 1 is opened with a first mounting hole 14, and the inner wall of the first mounting hole 14 is installed with a transverse air duct 5 consistent with the driving direction of the vehicle, and the other side of the box body 1 is opened with two second mounting holes 15, and the inner wall of the second mounting hole 15 is consistent with the vehicle driving direction. A longitudinal wind tube 6 perpendicular to the driving direction of the vehicle is installed between the outer walls of the transverse wind tube 5, a connecting hole is opened in the middle position of one end of the longitudinal wind tube 6, and two through holes communicating with the connecting hole are opened on the transverse wind tube 5, and equidistantly distributed vents 21 are opened on the outer wall of the longitudinal wind tube 6 near the transverse wind tube 5, a second mounting frame 22 is fixed to one side of the inner wall of the longitudinal wind tube 6, and the inner wall of the second mounting frame 22 and the inner wall of the connecting hole are rotatably connected to a transmission shaft 23 passing through the through hole through a bearing, and the outer walls of the two transmission shafts 23 are both installed with fan blades 24, and the blowing directions of the two fan blades 24 are opposite, and the two transmission shafts 23 are The same driving assembly is arranged at one end, and the driving assembly includes a first mounting frame 17 mounted at both ends of the inner wall of the transverse wind tube 5, and the middle position of the first mounting frame 17 is rotatably connected with a main shaft 20, turbine blades 18 are mounted on both sides of the outer wall of the main shaft 20, mounting shells 19 are mounted on both sides of the inner wall of the transverse wind tube 5, and the mounting shells 19 are communicated with the through hole, one end of the transmission shaft 23 extends to the inside of the mounting shell 19, one end of the transmission shaft 23 and the outer wall of the main shaft 20 are mounted with bevel gears 25, and two adjacent bevel gears 25 are meshed, the bevel gears 25 are located inside the mounting shell 19, and the mounting shell 19 is A through hole is provided for the main shaft 20 to pass through. When the railway vehicle is running, the airflow generated by the railway vehicle can circulate in the transverse wind tube 5, driving the turbine blades 18 and the main shaft 20 in the transverse wind tube 5 to rotate, and the meshing action of the bevel gear 25 drives the transmission shaft 23 and the fan blades 24 to rotate, so that the airflow generated by the railway vehicle when running can be blown into the interior of the entire junction box, effectively ventilating and cooling the interior of the junction box to ensure the normal operation of the junction box, and because the blowing directions of the two fan blades 24 are opposite, the ventilation and heat dissipation functions can be realized during the reciprocating movement of the railway vehicle.

[0028] Specifically, a dustproof net 8 is installed at the other end of the longitudinal air duct 6 to prevent dust and other impurities from entering the longitudinal air duct 6 and even the interior of the junction box.

[0029] Specifically, a line inlet 11 is opened on one side of the box body 1, and a line inlet pipe 3 is installed on one side of the line inlet 11, and equally spaced branching ports 7 are opened on the other side of the box body 1. A bottom cover 2 is hinged at the bottom of the box body 1, and a lock is provided on the bottom cover 2. The bottom cover 2 is fixed to the box body 1 by the lock, and a grounding wire 13 is installed between the inner wall of the box body 1 and the top of the bottom cover 2. The bottom of the distribution box is opened through the action of the bottom cover 2, which is convenient for wiring operation and inspection.

[0030] Specifically, a lifting ear 4 is installed on one side of the box body 1 close to the wire inlet 11. The lifting ear 4 cooperates with the wire inlet pipe 3 to install the entire vehicle-end connection distribution box on the metal pipe and the main beam for laying cables, so as to increase safety and stability and achieve easy disassembly and assembly.

[0031] The working principle of the utility model is as follows: when in use, the user uses the lifting ear 4 and the inlet pipe 3 to install the entire vehicle-end connection junction box on the metal pipe and the main beam for laying cables, passes the main line through the main beam and the inlet pipe 3 into the interior of the junction box, and installs the main line on the copper bus 12 after branching, and then passes the branch line through the metal pipe and the branch port 7 and fixes it to the copper bus 12, thereby realizing the branching operation, and the box body 1 is conveniently opened through the bottom cover 2 to realize the operation and inspection of wiring. When the railway vehicle is running, the airflow generated when the railway vehicle is running can be circulated in the transverse wind tube 5, driving the turbine blades 18 and the main shaft 20 in the transverse wind tube 5 to rotate, and the meshing action of the bevel gear 25 drives the transmission shaft 23 and the fan blade 24 to rotate. Since the blowing directions of the two fan blades 24 are opposite, one of the fan blades 24 is used for blowing operation, and the other fan blade 24 is used for exhaust operation, so that the airflow flows along the vent 21 to the interior of the entire junction box, thereby ventilating and cooling the interior of the junction box, ensuring the normal operation of the junction box.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A vehicle-end connection distribution box, comprising a box body (1), characterized in that: Support plates (9) are fixed to the tops of both sides of the inner wall of the box body (1), and mounting platforms (10) are installed at equal distances at the bottom of the two support plates (9), and insulating ceramic seats (16) are installed at the middle position of the bottom of the mounting platforms (10), and copper bars (12) are installed at the bottom of the insulating ceramic seats (16), and first mounting holes (14) are opened at the tops of both ends of the box body (1), and the inner walls of the first mounting holes (14) are installed with transverse air ducts (5) in line with the driving direction of the vehicle, and two second mounting holes (15) are opened on the other side of the box body (1), and the inner walls of the second mounting holes (15) are installed with the outer walls of the transverse air ducts (5) in line with the vehicle. A longitudinal wind tube (6) perpendicular to the driving direction, a connecting hole is provided at the middle position of one end of the longitudinal wind tube (6), and two through holes communicating with the connecting hole are provided on the transverse wind tube (5), and equidistantly distributed ventilation holes (21) are provided on the outer wall of the longitudinal wind tube (6) close to the transverse wind tube (5), a second mounting frame (22) is fixed to one side of the inner wall of the longitudinal wind tube (6), and a transmission shaft (23) passing through the through hole is rotatably connected between the inner wall of the second mounting frame (22) and the inner wall of the connecting hole via a bearing, and the outer walls of the two transmission shafts (23) are both provided with fan blades (24), and the blowing directions of the two fan blades (24) are opposite, and one end of the two transmission shafts (23) is provided with the same driving assembly.

2. The vehicle-end connection junction box according to claim 1, characterized in that: The driving assembly comprises a first mounting frame (17) mounted on both ends of the inner wall of the transverse wind tube (5), and a main shaft (20) is rotatably connected to the middle position of the first mounting frame (17), and turbine blades (18) are mounted on both sides of the outer wall of the main shaft (20), and mounting shells (19) are mounted on both sides of the inner wall of the transverse wind tube (5), and the mounting shells (19) are connected to the through hole, and one end of the transmission shaft (23) extends to the inside of the mounting shell (19), and one end of the transmission shaft (23) and the outer wall of the main shaft (20) are mounted with bevel gears (25), and two adjacent bevel gears (25) are meshed with each other, and the bevel gears (25) are located inside the mounting shell (19), and the mounting shell (19) is provided with a through hole for the main shaft (20) to pass through.

3. A vehicle-end connection junction box according to claim 2, characterized in that: The other end of the longitudinal air duct (6) is equipped with a dustproof net (8).

4. The vehicle-end connection junction box according to claim 1, characterized in that: A line inlet (11) is provided on one side of the box body (1), and a line inlet pipe (3) is installed on one side of the line inlet (11); and line distribution ports (7) distributed at equal distances are provided on the other side of the box body (1).

5. The vehicle-end connection junction box according to claim 1, characterized in that: The bottom of the box body (1) is hinged with a bottom cover (2), and a lock buckle is provided on the bottom cover (2), and the bottom cover (2) is fixed to the box body (1) via the lock buckle.

6. The vehicle-end connection junction box according to claim 5, characterized in that: A grounding wire (13) is installed between the inner wall of the box body (1) and the top of the bottom cover (2).

7. The vehicle-end connection junction box according to claim 4, characterized in that: A lifting lug (4) is installed on one side of the box body (1) close to the cable inlet (11).

Images