Power supply device for railway

Abstract

The utility model relates to the field of railway power supply, in particular to a railway power supply device which comprises a cable rod, a first transverse rod is connected to the surface of the cable rod, a second transverse rod is connected to the portion, located above the first transverse rod, of the surface of the cable rod, and the power supply device further comprises a connecting rod. One end of the connecting rod is connected with a binding post, the top of the binding post is connected with a first connecting wire, the other end of the connecting rod is connected with an electric brush, the bottom of the electric brush extends to the bottom of the second cross rod, and the electric brush and the binding post are connected through the second connecting wire; the high-voltage wire is arranged at the top of the cable rod, and the other end of the first connecting wire is connected with the high-voltage wire; the top of the conductive plate can abut against the bottom of the elastic conductor, the number of the high-voltage lines is reduced, the connection stability between the electric brush and the binding post and the high-voltage lines is enhanced through the connecting rod, the service life of the high-voltage lines is effectively prolonged, and meanwhile the maintenance frequency and difficulty are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of railway power supply, and in particular to a power supply device for railways. Background Art

[0002] At present, the railway is developing rapidly. As an important national infrastructure, a major artery of the national economy and a popular means of transportation, the railway plays an important role in the modern logistics system. Nowadays, the railways in the cities around us are well connected and run through various cities, making our travel more convenient. At present, the electrified railway basically adopts AT power supply mode, AC power supply, with a ground voltage of about 27kV, which is rectified into DC on the locomotive for use by the locomotive; the contact network on the electric locomotive forms a loop power supply through the locomotive and the rails.

[0003] The Chinese Patent Network discloses an "electric train power supply device" with a publication number of CN201325343Y. An electric pole (5) is erected at a given distance along the railway. The electric pole has two cross beams (6). A vertical beam (8) is connected between the two cross beams. The upper and lower ends of the vertical beam each have a terminal (7). The terminal is connected to two high-voltage lines (1) respectively. The two high-voltage lines are on the same vertical plane. The terminal (7) at the lower end is connected to an elastic conductor. A vertical beam (2) is installed at a given distance on two lines above the railway. The lower end of the vertical beam has a terminal (7). The terminal is connected to the elastic conductor and the power supply. A strip-shaped conductive plate or conductive groove is installed on the top of the locomotive compartment. The conductive plate or conductive groove is connected to the electrical equipment in the locomotive. The neutral line of the device is replaced by a rail, and the neutral line of the power supply is connected to the rail. The rail is connected to the electrical equipment in the vehicle through the wheel and the axle. Electricity is obtained by continuous contact between the brush and the conductive plate or groove, and continuous contact power supply. The line is not worn, the failure rate is low, and the safety is improved. The cost of inspection and maintenance of line wear and tear faults is high and is not restricted by railway turns or crossings.

[0004] During use, it was found that the setting of multiple high-voltage lines is affected by the operating speed of the railway. The contact speed between the brush and the conductive plate directly affects the service life of the high-voltage lines, which increases the maintenance frequency and the difficulty of the maintenance personnel's work. The inspection and maintenance costs are high, and it is time-consuming and labor-intensive, which is not conducive to promotion and use. Utility Model Content

[0005] The present application provides a power supply device for railways to solve the technical problems that the inventors have recognized that the setting of multiple high-voltage lines is affected by the operating speed of the railway, the contact speed between the brush and the conductive plate directly affects the service life of the high-voltage lines, the maintenance frequency is increased while the work difficulty of the maintenance personnel is increased, the inspection and maintenance costs are high, and it is time-consuming and labor-intensive, which is not conducive to promotion and use.

[0006] The present application provides a railway power supply device, comprising:

[0007] A cable rod, wherein a first crossbar is connected to the surface of the cable rod, a second crossbar is connected to the surface of the cable rod and located below the first crossbar, and further comprising a connecting rod, wherein the first crossbar and the second crossbar are connected via the connecting rod, wherein one end of the connecting rod is connected to a terminal, wherein the top of the terminal is connected to a first connecting wire, wherein the other end of the connecting rod is connected to a brush, wherein the bottom of the brush extends to the bottom of the second crossbar, and further comprising a second connecting wire, wherein the brush and the terminal are connected via the second connecting wire;

[0008] A high-voltage line, which is arranged on the top of the cable rod, and the other end of the first connecting line is connected to the high-voltage line;

[0009] A conductive plate, the top of which can abut against the bottom of the brush.

[0010] In any of the above technical solutions, further, one side of the conductive plate has a slope.

[0011] In any of the above technical solutions, further, the electric brush includes a brush head and brush filaments, the brush filaments are arranged on the surface of the brush head, and the brush head is arranged on the second cross bar.

[0012] In any of the above technical solutions, further, the brush head is made of conductive material.

[0013] In any of the above technical solutions, further, the brush filaments are made of elastic conductive material.

[0014] In any of the above technical solutions, further, there is a distance gap from the bottom of the brush head to the top of the conductive plate.

[0015] In any of the above technical solutions, further, the distance gap is smaller than the length of the brush filament.

[0016] In any of the above technical solutions, further, it also includes a carriage, and the conductive plate is arranged on the top of the carriage.

[0017] In any of the above technical solutions, further, the number of the cable rod, the first cross bar, the second cross bar, the terminal, the brush, the first connecting line, the second connecting line and the carriage are all multiple.

[0018] In any of the above technical solutions, further, the distance between every two of the cable rods is less than the length of one section of the carriage.

[0019] The beneficial effects of this application are mainly:

[0020] 1. Reduce the number of high-voltage wires, and use connecting rods to strengthen the connection stability between brushes and terminals and high-voltage wires, effectively prolonging the service life of high-voltage wires while reducing the frequency and difficulty of maintenance, and improving overall safety.

[0021] 2. The overall structure is simple, which saves materials and reduces production costs. It is not restricted by railway bending or crossing during use and has a wide range of applications.

[0022] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present application. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present application. At the same time, the specification and the drawings are used to explain the principles of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of a power supply device according to an embodiment of the present application (top view);

[0025] Figure 2 A schematic diagram of a cable rod and its connection structure according to an embodiment of the present application (side cross-sectional view);

[0026] Figure 3 This is a schematic diagram of the conductive plate structure in the embodiment of the present application (front view);

[0027] Figure 4 This is a schematic diagram of the cable pole, high-voltage line and their connection structure in the embodiment of the present application (front view).

[0028] icon:

[0029] 100-cable rod; 101-first crossbar; 102-second crossbar; 103-connecting rod; 104-terminal; 105-brush head; 106-brush wire; 107-first connecting wire; 108-second connecting wire; 200-high voltage wire; 300-conductive plate; 400-carriage. DETAILED DESCRIPTION

[0030] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0031] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In one or more embodiments, a power supply device for railway is provided, including: a cable rod 100, a first cross bar 101 is connected to the surface of the cable rod 100, a second cross bar 102 is connected to the surface of the cable rod 100 and is located below the first cross bar 101, and also includes a connecting rod 103, the first cross bar 101 and the second cross bar 102 are connected through the connecting rod 103, one end of the connecting rod 103 is connected to a terminal 104, the top of the terminal 104 is connected to a first connecting wire 107, the other end of the connecting rod 103 is connected to a brush, the bottom of the brush extends to the bottom of the second cross bar 102, and also includes a second connecting wire 108, the brush And the terminal 104 is connected by the second connecting line 108; the high-voltage line 200, the high-voltage line 200 is arranged at the top of the cable rod 100, and the other end of the first connecting line 107 is connected to the high-voltage line 200; the conductive plate 300, the top of the conductive plate 300 can abut against the bottom of the brush, and also includes a carriage 400, the conductive plate 300 is arranged at the top of the carriage 400, the cable rod 100, the first cross bar 101, the second cross bar 102, the terminal 104, the brush, the first connecting line 107, the second connecting line 108 and the carriage 400 are all multiple, and the distance between every two cable rods 100 is less than the length of a carriage 400.

[0035] In this embodiment, in this application, the neutral wire is replaced by a railway track, and the rail is connected to the electrical equipment in the locomotive through the wheels and axles, and the neutral wire of the power supply in the carriage 400 is connected to the rail, and the high-voltage wire 200 on the cable rod 100 acts as the live wire. Multiple cable rods 100 are arranged at intervals, and the interval distance is less than the length of a carriage 400, and the conductive plate 300 is connected to the electrical equipment in the carriage 400. Based on this, when the brush and the surface of the conductive plate 300 generate current during the contact process, the current flows through the second connecting wire 108, the terminal 104, the first connecting wire 107 to the high-voltage wire 200 in sequence, thereby realizing the generation and transmission of current.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, one side of the conductive plate 300 has a slope, the brush includes a brush head 105 and a brush wire 106, the brush wire 106 is arranged on the surface of the brush head 105, the brush head 105 is arranged on the second cross bar 102, the brush head 105 is made of conductive material, the brush wire 106 is made of elastic conductive material, and there is a distance gap from the bottom of the brush head 105 to the top of the conductive plate 300, and the distance gap is less than the length of the brush wire 106.

[0037] In this embodiment, the conductive plate 300 is electrically connected to the electrical equipment in the carriage 400, and the brush 106 will first come into contact along the inclined surface of the conductive plate 300. In this process, the initial speed of the brush 106 and the subsequent conductive plate 300 is reduced, thereby increasing the service life of the conductive plate 300. The distance gap between the bottom of the brush head 105 and the top of the conductive plate 300 is smaller than the length of the brush 106 to avoid the contact between the brush 106 and the conductive plate 300 under external influences such as wind.

[0038] Specifically, the working principle of a railway power supply device provided in this application is:

[0039] The neutral line is replaced by a railway track, and the track is connected to the electrical equipment in the locomotive through the wheels and axles, while the neutral line of the power supply in the carriage 400 is connected to the track, the high-voltage line 200 on the cable rod 100 acts as the live line, and the conductive plate 300 is connected to the electrical equipment in the carriage 400. Based on this, when the brush and the surface of the conductive plate 300 are in contact, current is generated, and the current flows through the second connecting line 108, the terminal 104, the first connecting line 107 to the high-voltage line 200 in sequence, thereby realizing the generation and transmission of current.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power supply device for railway, characterized in that: include: A cable rod, wherein a first crossbar is connected to the surface of the cable rod, a second crossbar is connected to the surface of the cable rod and located below the first crossbar, and further comprising a connecting rod, wherein the first crossbar and the second crossbar are connected via the connecting rod, wherein one end of the connecting rod is connected to a terminal, wherein the top of the terminal is connected to a first connecting wire, wherein the other end of the connecting rod is connected to a brush, wherein the bottom of the brush extends to the bottom of the second crossbar, and further comprising a second connecting wire, wherein the brush and the terminal are connected via the second connecting wire; A high-voltage line, which is arranged on the top of the cable rod, and the other end of the first connecting line is connected to the high-voltage line; A conductive plate, the top of which can abut against the bottom of the brush.

2. A railway power supply device according to claim 1, characterized in that: One side of the conductive plate has an inclined surface.

3. A railway power supply device according to claim 2, characterized in that: The electric brush comprises a brush head and brush filaments, wherein the brush filaments are arranged on the surface of the brush head, and the brush head is arranged on the second crossbar.

4. A railway power supply device according to claim 3, characterized in that: The brush head is made of conductive material.

5. A railway power supply device according to claim 3, characterized in that: The brush filaments are made of elastic conductive material.

6. A railway power supply device according to claim 4, characterized in that: There is a distance gap between the bottom of the brush head and the top of the conductive plate.

7. A railway power supply device according to claim 6, characterized in that: The distance gap is smaller than the length of the brush filament.

8. A railway power supply device according to claim 2, characterized in that: The invention also comprises a carriage, wherein the conductive plate is arranged on the top of the carriage.

9. A railway power supply device according to claim 8, characterized in that: The cable rod, the first cross bar, the second cross bar, the terminal, the brush, the first connecting wire, the second connecting wire and the carriage are all multiple in number.

10. A railway power supply device according to claim 8, characterized in that: The distance between each two cable rods is less than the length of one section of the carriage.

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