Hydrogen energy city domain train pipeline arrangement structure

Abstract

The utility model is applicable to the field of wiring of hydrogen energy city trains, and provides a hydrogen energy city train pipeline arrangement structure, which comprises a hydrogen energy system circuit arranged at the top of a train, and is characterized in that in a hydrogen energy city train in a grouping form of two trains, two trailers and four trains, a Tc train is provided with two sets of energy storage systems and air conditioning systems; the M vehicle is provided with two sets of hydrogen energy systems, energy storage systems and air conditioning systems; the hydrogen energy system circuit comprises a low-voltage control system, a three-phase alternating current system and a high-voltage circuit system; the three parts comprise a connector and a connector wire harness; the connector comprises a low-voltage controller, an alternating-current bus and a high-voltage power supply connector; the connector wire harness comprises low-voltage control, alternating-current and high-voltage wire harnesses. Therefore, according to the utility model, the scientificity and rationality of the whole pipeline arrangement structure can be ensured, and the problems of equipment arrangement and wiring caused by the reason that the equipment of the hydrogen power train cannot be miniaturized and lightened and the space under the train is saturated are effectively solved.

Description

Technical Field

[0001] This utility model is applicable to the field of hydrogen-powered urban rail transit wiring, and provides a hydrogen-powered urban rail transit pipeline layout structure. Background Technology

[0002] Currently, with the growing international understanding of "carbon peaking and carbon neutrality" and the active response of national energy strategies, the concept of new energy rail transit is gradually being perfected, which will promote the application of new energy industries in the rail transit field. Hydrogen energy, as a clean, zero-carbon renewable energy source, has characteristics such as high energy density, diverse acquisition methods, and clean production and use processes, making it an important new energy choice for the country's "dual-carbon" strategy. In recent years, the development and utilization of hydrogen energy has been continuously improving, making it a key industry for the country's construction of a new energy system.

[0003] Hydrogen-powered rail transit, as a zero-emission mode of transportation, aligns with international trends towards low-carbon and environmentally friendly development and national strategic priorities. Unlike conventional electrified rail transit trains that rely on overhead contact lines for power, hydrogen-powered urban rail trains operate without pantographs, eliminating the need for overhead contact lines. They utilize hydrogen fuel cells as their primary energy source, where stored hydrogen and oxygen undergo an electrochemical reaction to generate electricity. The only reaction byproduct is water. This approach offers advantages such as cleanliness, environmental friendliness, ease of operation and maintenance, short construction periods, and low fixed investment. Furthermore, it features high speed, large capacity, rapid boarding and alighting, and intelligent safety.

[0004] Since the power system primarily utilizes hydrogen fuel cells and energy storage systems, current technology cannot achieve miniaturization and lightweight design. To ensure sufficient energy supply, the number of hydrogen fuel cells in the vehicle must be increased. Conventional electrified rail transit vehicles have mature technology, with most equipment located under the vehicle, resulting in saturated undercarriage space. Conventional urban rail vehicles typically have rooftop equipment including air conditioning, high-voltage boxes, and pantograph assemblies. The number of electrical connectors is relatively small, and the number of cables within each connector is relatively even. Wiring methods typically involve calculating the appropriate cable diameter based on the number and diameter of cables in each connector, selecting suitable wire harness protection tubes and sealing devices according to the diameter, and then drilling mounting holes on the vehicle body near the equipment interfaces based on the size of the sealing devices to reduce the exposed cable length on the roof, ensuring a simple, neat, and aesthetically pleasing rooftop wiring method. Hydrogen-powered trains use a hydrogen power system to replace the pantograph power supply of electrified trains, requiring the addition of corresponding hydrogen energy systems and energy storage systems. Because the power and range requirements must be met under full load, the overall size of this system cannot currently be miniaturized or lightweighted. At the same time, due to the large number of vehicle chassis equipment and their relatively compact layout, it is impossible to install hydrogen energy systems and energy storage systems. Utility Model Content

[0005] To address the aforementioned deficiencies, the purpose of this utility model is to provide a hydrogen-powered urban rail transit pipeline layout structure, aiming to solve the problems mentioned in the background art. The structure includes a hydrogen energy system circuit arranged on the roof. Its key feature is that in a hydrogen-powered urban rail transit train with a 2-motor, 2-trailer, 4-car formation, the configuration is: "=Tc1*M1*M2*Tc2=".

[0006] Trailers with driver's cabs, denoted by Tc, are equipped with two energy storage systems and two air conditioning systems; trains without driver's cabs, denoted by M, are equipped with two hydrogen energy systems, two energy storage systems, and two air conditioning systems per car.

[0007] The hydrogen energy system circuit includes a low-voltage control system, a three-phase AC system, and a high-voltage circuit system.

[0008] The low-voltage control system, the three-phase AC system, and the high-voltage circuit system include several connectors and several connector harnesses; the connectors include low-voltage control connectors, AC bus connectors, and high-voltage power connectors; the connector harnesses include low-voltage control harnesses, AC harnesses, and high-voltage harnesses.

[0009] Furthermore, the two energy storage systems on the Tc vehicle are equipped with a total of 6 low-voltage control connectors, 2 AC bus connectors, and 6 separate high-voltage cables.

[0010] Furthermore, the two energy storage systems of the M vehicle are equipped with a total of 6 low-voltage control connectors, 2 AC bus connectors, and 6 high-voltage wiring harnesses; it also includes a total of 8 connectors for the two hydrogen energy systems, including 4 low-voltage control connectors, 2 AC bus connectors, and 2 high-voltage power connectors.

[0011] Furthermore, the high-voltage wiring harness and AC wiring harness are arranged on the two sides of the vehicle, while the low-voltage control wiring harness is arranged on the one side of the vehicle.

[0012] Furthermore, except for the connector harnesses between the energy storage system and the hydrogen energy system which run through the entire vehicle, all other connectors are arranged from both ends of the vehicle body.

[0013] Furthermore, both the Tc car and the M car are provided with openings for threading connector harnesses.

[0014] Furthermore, two openings are provided on the Tc vehicle, with the two openings respectively located on the first and second sides of the Tc vehicle.

[0015] Furthermore, two openings are provided at both the first and second positions of the M vehicle, and the two openings at the first and second positions are respectively located on the first and second positions sides of the M vehicle.

[0016] This invention ultimately ensures the scientific and rational nature of the entire pipeline layout structure, effectively solving the equipment layout and wiring problems caused by the inability to miniaturize and lighten equipment and the saturation of space under the vehicle in hydrogen-powered trains. Attached Figure Description

[0017] Figure 1 Wiring diagram for the roof of the lead car Tc;

[0018] Figure 2 Wiring diagram for the roof of the intermediate car M1;

[0019] Figure 3 for Figure 2 A magnified view of the AA direction;

[0020] Figure 4 for Figure 2 A magnified view of the BB direction;

[0021] Figure 5 Wiring diagram for the roof of the middle car M2;

[0022] Figure 6 for Figure 5 A magnified view of a portion of the CC direction;

[0023] Figure 7 for Figure 5 A magnified view of the DD direction;

[0024] Figure 8 for Figure 3 A magnified view of the EE direction;

[0025] Figure 9 for Figure 4 A magnified view of the FF direction;

[0026] Figure 10 for Figure 1 A magnified view of the GG direction;

[0027] Figure 11 for Figure 6 A magnified view of the HH direction;

[0028] Figure 12 for Figure 7 Enlarged view of the area in direction II;

[0029] In the diagram: 01 - Opening. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0034] The purpose of this invention is to provide a pipeline layout structure for a hydrogen-powered urban rail transit system. Because hydrogen fuel cells have slow start-up characteristics, poor dynamic response characteristics, and cannot recover regenerative braking energy, the hydrogen-powered train applicable to this invention is equipped with a supercapacitor as an energy storage system to form a fuel cell hybrid power system. Therefore, although the roof layout of the hydrogen-powered train only retains air conditioning and reduces pantograph and high-voltage box equipment compared to conventional trains, it requires the addition of hydrogen energy devices and energy storage devices. Due to the large number of devices on the vehicle's underframe and its relatively compact layout, it is impossible to arrange the hydrogen energy system and energy storage system equipment; therefore, the equipment is placed in a relatively open area on the roof.

[0035] The overall layout of the train roof to which this solution applies:

[0036] The train in this technical solution adopts a 4-car formation of 2 powered cars and 2 trailer cars, with the formation format being: "=Tc1*M1*M2*Tc2="

[0037] Tc vehicles include Tc1 / Tc2: trailers with driver's cabs; M vehicles include M1 / M2: intermediate vehicles with power; =: fully automatic coupler; *: semi-permanent tow bar.

[0038] See attached diagram for the overall equipment layout on the train roof. Figure 1 -Appendix Figure 7 The number of system layouts is shown in Table 1 below.

[0039] Table 1

[0040]

[0041] The vehicle is designed with a hydrogen energy system circuit located on the roof, which includes a low-voltage control system, a three-phase AC system, and a high-voltage circuit system.

[0042] The low-voltage control system, three-phase AC system, and high-voltage circuit system include several connectors, including low-voltage control connectors, AC bus connectors, and high-voltage power supply connectors. Specifically, the low-voltage control connector belongs to the low-voltage control system, the AC bus connector belongs to the three-phase AC system, and the high-voltage power supply connector belongs to the high-voltage circuit system.

[0043] The low-voltage control system, the three-phase AC system, and the high-voltage circuit system each include several connector harnesses, namely the low-voltage control harness, the AC harness, and the high-voltage harness (high-voltage cable).

[0044] The Tc car (Tc1 / Tc2) includes two energy storage systems. The two energy storage systems on the Tc car are equipped with a total of 6 low-voltage control connectors, 2 AC bus connectors and 6 separate high-voltage cables.

[0045] The M car (M1 / M2) includes two energy storage systems with the same electrical interfaces as the Tc car. The two energy storage systems consist of a total of 6 low-voltage control connectors, 2 AC bus connectors, and 6 separate high-voltage cables. It also includes two hydrogen energy systems with a total of 8 connectors, including 4 low-voltage control connectors, 2 AC bus connectors, and 2 high-voltage power connectors.

[0046] The wiring paths of numerous connector harnesses are arranged on the two sides of the vehicle according to the high voltage harness (high voltage cable) and AC harness, while the low voltage control harness is arranged on the one side of the vehicle.

[0047] This measure is to prevent high-voltage, low-voltage, and AC wiring harnesses from converging in the passenger compartment and causing electromagnetic interference, which could affect the vehicle's communication functions. Specifically, the M1 car's one-side is located in the auxiliary... Figure 2 On the right side of the M1 car in the direction of AA, the second position is located on the side of the auxiliary vehicle. Figure 2 The left side of car M1 in the direction of AA. The first position of car M2 is located on the side of the adjacent... Figure 5 The right side of the M2 car in the CC direction, the second position is located on the side of the auxiliary vehicle. Figure 5 The left side of car M2 in the CC direction. Car Tc's first position is located on the side of the adjacent car. Figure 1 The left side of the Tc car in the GG direction, the second side is located on the side of the auxiliary Figure 1 To the right of the GG direction of the Tc car.

[0048] Except for the connector wiring harness between the two systems that runs through the entire vehicle, all other connectors are arranged from both ends of the vehicle body according to the principle of proximity. This is because space is limited after the roof equipment is arranged, so the overall wiring on the roof should be kept as neat, orderly, simple and beautiful as possible.

[0049] Based on the equipment electrical interface list, determine the number and diameter of cables for each connector. Use EN50264 standard to confirm the cable diameter for different wire gauges, then calculate the cross-sectional area of ​​the cables within each connector using the area calculation formula. Finally, calculate the diameter of the conduit through which the connector harness can smoothly pass using the duty cycle, and select the appropriate conduit model. After confirming the conduit model, set the opening section 01 according to the wiring path design plan, i.e., determine the sealing style, sealing frame size, and vehicle body opening size for opening section 01. The location plan for opening section 01 is attached. Figure 8 -Appendix Figure 12 As shown.

[0050] Specifically, there are two openings 01 on the Tc car, see [reference]. Figure 1 and Figure 10 The end of the Tc vehicle along the GG direction is the second-position end. The second-position end of the Tc vehicle has two openings 01, located on the first and second positions respectively. The main reason for placing the openings 01 at the second-position end is that the hydrogen energy equipment is located near the second-position end, ensuring the shortest wiring path for cable connections to the equipment. This controls cable length, reduces transmission distance to the equipment, minimizes the risk of cable damage, and also makes the wiring neat and aesthetically pleasing. The openings on the first and second positions are primarily to separate the high-voltage wiring harness, AC wiring harness, and low-voltage control wiring harness, avoiding interference and mutual influence with other lines and equipment due to differences in electric field strength, which could lead to electrical faults.

[0051] See Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 9The M1 vehicle has a first-position end along the AA direction and a second-position end along the BB direction. Both the first and second positions of the M1 vehicle have two openings 01, located on the first and second positions sides of the M1 vehicle, respectively. Due to the different number and location of the hydrogen energy equipment, the M1 vehicle has two sets of hydrogen energy equipment, located near the first and second positions. Therefore, openings are provided at the first and second positions to facilitate wiring of the equipment at both ends. The reason for providing openings at the ends and on the first and second positions is the same as for the Tc vehicle. That is, the two openings 01 at the first position of the M1 vehicle are located on the first and second positions sides of the M1 vehicle, respectively; the two openings 01 at the second position of the M1 vehicle are located on the first and second positions sides of the M1 vehicle, respectively.

[0052] See Figure 5 , Figure 6 , Figure 7 , Figure 11 and Figure 12 The M2 vehicle has a first-position end along the CC direction and a second-position end along the DD direction. Both the first-position and second-position ends of the M2 vehicle have two openings 01, located on the first and second-position sides of the M2 vehicle, respectively. The reason for providing openings at the ends and on the first and second-position sides is the same as for the M1 vehicle. Specifically, the two openings 01 at the first-position end of the M2 vehicle are located on the first and second-position sides of the M2 vehicle, respectively; and the two openings 01 at the second-position end of the M2 vehicle are located on the first and second-position sides of the M2 vehicle, respectively.

[0053] Therefore, in terms of layout, a hybrid power system is formed by combining hydrogen power with supercapacitors, and the hydrogen energy device, energy storage device, and supporting connecting pipelines are arranged on the roof. Compared with conventional trains, although more equipment is added, the roof layout has been optimized through reasonable planning, while retaining air conditioning, thus solving the problem of insufficient space for underframe equipment. High-voltage and AC wiring harnesses are arranged on the second side of the vehicle, while low-voltage control wiring harnesses are arranged on the first side, avoiding electromagnetic interference caused by high-voltage, low-voltage, and AC wiring harnesses converging in the passenger compartment, and ensuring the stability of the communication functions of the entire vehicle's equipment. At the same time, except for the connector wiring harness between the two systems that runs through the entire vehicle, the other connectors are arranged from both ends of the vehicle body according to the principle of proximity, ensuring that the overall wiring on the roof is neat, orderly, simple, and aesthetically pleasing.

[0054] Meanwhile, regarding the setting of the opening section, the position and number of the opening section 01 were reasonably determined according to the number and location of hydrogen energy equipment in different vehicles (Tc vehicle, M1 vehicle, M2 vehicle), ensuring the shortest wiring path for the connection between the cable and the equipment end, controlling the cable length, and reducing the transmission distance and the risk of cable damage.

[0055] The overall solution ultimately ensured the scientific and rational nature of the entire pipeline layout, effectively solving the equipment layout and wiring problems caused by the inability to miniaturize and lighten equipment and the saturation of space under the vehicle in hydrogen-powered trains.

[0056] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A hydrogen energy city train pipeline arrangement structure, the city train including a hydrogen energy system circuit arranged on a roof, characterized by, In the hydrogen energy city train with the 2 locomotives, 2 trailers and 4 vehicles formation, it is expressed as "=Tc1*M1*M2*Tc2=": The trailer with the driver's cab expressed as Tc is equipped with two sets of energy storage systems and two sets of air conditioning systems; The motor vehicle without the driver's cab expressed as M is equipped with two sets of hydrogen energy systems, two sets of energy storage systems and two sets of air conditioning systems; The hydrogen energy system circuit comprises a low-voltage control system, a three-phase alternating current system and a high-voltage circuit system; The low-voltage control system, the three-phase alternating current system and the high-voltage circuit system comprise a plurality of connectors and a plurality of connector wire harnesses; The connectors comprise low-voltage control connectors, alternating current bus connectors and high-voltage power supply connectors; The connector wire harnesses comprise low-voltage control wire harnesses, alternating current wire harnesses and high-voltage wire harnesses.

2. The hydrogen energy regional train pipeline arrangement structure according to claim 1, characterized in that, The two sets of energy storage systems on the Tc vehicle are equipped with 6 low-voltage control connectors, 2 alternating current bus connectors and 6 separate high-voltage cables.

3. The hydrogen energy regional train pipeline arrangement structure according to claim 1, characterized in that, The two sets of energy storage systems on the M vehicle are equipped with 6 low-voltage control connectors, 2 alternating current bus connectors and 6 high-voltage wire harnesses; meanwhile, there are 8 connectors of the two sets of hydrogen energy systems, including 4 low-voltage control connectors, 2 alternating current bus connectors and 2 high-voltage power supply connectors.

4. The hydrogen energy regional train pipeline arrangement structure according to claim 1, characterized in that, The high-voltage wire harnesses and the alternating current wire harnesses are arranged at the two sides of the vehicle, and the low-voltage control wire harnesses are arranged at one side of the vehicle.

5. The hydrogen energy regional train pipeline arrangement structure according to claim 1, characterized in that, Except that the connector wire harnesses between the energy storage systems and the hydrogen energy systems pass through the whole vehicle, the rest of the connectors are arranged from both ends of the vehicle body.

6. The hydrogen energy regional train pipeline arrangement structure according to claim 1, characterized in that, The Tc vehicle and the M vehicle are both provided with an opening part (01) for penetrating the connector wire harnesses.

7. The hydrogen energy regional train pipeline arrangement structure according to claim 6, characterized in that, The opening part (01) is provided with two on the Tc vehicle, and the two opening parts (01) are respectively arranged at one side and the other side of the Tc vehicle.

8. The hydrogen energy regional train pipeline arrangement structure according to claim 6, characterized in that, The opening part (01) is provided with two on one side and the other side of the M vehicle, and the two opening parts (01) on one side and the other side are respectively arranged at one side and the other side of the M vehicle.

Images