Hydrogen fuel cell system integrated frame for a locomotive

Abstract

The application provides a hydrogen fuel cell system integrated frame of a locomotive, comprising a frame body, wherein a fuel cell system installation pre-embedding and a fuel cell system accessory installation pre-embedding are integrated on the frame body. By integrating the fuel cell system installation pre-embedding and the accessory installation pre-embedding on the frame body, the integrated design significantly reduces the overall weight by reducing the connecting components of the traditional split structure, and due to the pre-positioning of the functional modules, repeated adjustment during assembly is not required, the working hours can be shortened, the integrated frame reduces the risk of connection loosening, improves the system stability in a vibration environment, and realizes the comprehensive technical effects of structural integration, assembly efficiency improvement and reliability enhancement.

Description

Technical Field

[0001] This application relates to the field of fuel cell technology, and more specifically, to an integrated frame for a hydrogen fuel cell system for a locomotive. Background Technology

[0002] With the increasing global demand for clean energy, hydrogen fuel cell technology is gradually being applied in locomotives and rail transportation. Compared with traditional internal combustion locomotives, hydrogen fuel cell locomotives have advantages such as zero emissions and low noise, but the integration and lightweight design of their power system (including fuel cell stacks, radiators, electrical controllers, hydrogen storage tanks, and auxiliary equipment) have become key challenges.

[0003] Currently, hydrogen fuel cell locomotives mostly adopt a split or modular design for their frame structure. Each subsystem (such as fuel cell, cooling system, electrical control unit, etc.) is usually installed independently and then connected to the vehicle body through additional support structures. Although this design facilitates individual maintenance, it has the following problems: 1) Increased weight: The split frame requires additional reinforcement to support the dispersed subsystems, resulting in an increase in overall weight and affecting the locomotive's energy efficiency and economy; 2) Complex assembly: The installation of each subsystem requires multiple positioning and adjustments, and pipelines and wiring harnesses need to be laid on-site, increasing process complexity and assembly time; 3) Low space utilization: The dispersed pre-embedded holes and support structures easily lead to wasted space and make it difficult to optimize stress distribution, with redundant materials in some areas.

[0004] Therefore, there is an urgent need for an integrated lightweight framework that, through integrated design, pre-embedded optimization, and structural simulation, can achieve efficient weight reduction and simplified assembly of hydrogen fuel cell locomotive systems while ensuring strength and reliability. Utility Model Content

[0005] This patent proposes an integrated frame for a hydrogen fuel cell system of a locomotive. By integrating pre-embedded fuel cell system installation and fuel cell system accessory installation on the main frame body, integrated lightweight installation can be achieved, simplifying assembly.

[0006] This application is achieved in the following way: This application provides an integrated frame for a hydrogen fuel cell system of a locomotive, including a frame body, on which fuel cell system installation pre-embedded parts and fuel cell system accessory installation pre-embedded parts are integrated.

[0007] In a preferred embodiment, the fuel cell system accessory installation pre-embedding includes one or more of the following: pipeline installation pre-embedding, radiator installation pre-embedding, wiring harness installation pre-embedding, air filter installation pre-embedding, pre-filter installation pre-embedding, electrical controller installation pre-embedding, and electrical DC installation pre-embedding.

[0008] In a preferred embodiment, the frame body includes a main frame and reinforcing diagonal braces.

[0009] In a preferred embodiment, at least a portion of the reinforcing brace is disposed at stress concentration points.

[0010] In a preferred embodiment, the reinforcing diagonal brace and the main frame form a K-shape.

[0011] In a preferred embodiment, the thickness of the main frame is greater than the thickness of the reinforcing diagonal brace.

[0012] In a preferred embodiment, the frame body is further integrated with a fixing position for fixing to the wind source compartment or the power battery compartment.

[0013] In a preferred embodiment, the fixing position includes a wind source compartment fixing position and a power battery compartment fixing position, wherein the wind source compartment fixing position and the power battery compartment fixing position are arranged opposite to each other.

[0014] In a preferred embodiment, there is a maintenance clearance space between the main frame and the reinforcing diagonal brace.

[0015] In a preferred embodiment, at least some of the fuel cell system components are pre-embedded in the reinforcing brace.

[0016] Compared with the prior art, this application has at least the following technical effects:

[0017] 1. The integrated frame of the hydrogen fuel cell system of the locomotive of this application integrates the fuel cell system installation pre-embedded and accessory installation pre-embedded on the main frame body. This integrated design significantly reduces the overall weight by reducing the connecting parts of the traditional split structure. At the same time, since the functional modules are pre-positioned, there is no need for repeated adjustments during assembly, which can shorten the working time. Furthermore, the integrated frame reduces the risk of loose connections and improves the system stability under vibration environment, achieving the comprehensive technical effect of structural integration, improved assembly efficiency and enhanced reliability.

[0018] 2. Furthermore, the pre-embedded installation of accessories includes one or more of the following: pipes, radiators, wiring harnesses, air filters, pre-filters, electrical controllers, and electrical DC. This optimized pre-embedded design avoids stress concentration caused by drilling or welding later by planning the pipe and wiring harness paths in advance, thus extending the frame's lifespan. At the same time, the integrated layout reduces redundant space occupation, making the frame smaller. The standardized pre-embedded installation design also facilitates quick replacement of accessories, reduces maintenance costs, and achieves the technical effects of maximizing space utilization and improving maintenance convenience.

[0019] 3. The main frame consists of a main frame and reinforcing diagonal braces. This structural design allows the main frame to bear the main load while the reinforcing diagonal braces provide local reinforcement, avoiding the weight increase caused by overall thickening. This achieves a balance between lightweight and strength. Furthermore, the reinforcing diagonal braces are only used in critical areas, reducing the amount of high-strength materials used and lowering manufacturing costs. This results in significant economic and performance advantages.

[0020] 4. Strengthen the diagonal bracing by placing it at stress concentration points, such as welded joints and load transfer nodes. Use finite element analysis to locate high stress areas, thereby improving the efficiency of the diagonal bracing arrangement, avoiding unnecessary weight increase, reducing the risk of cracks caused by stress concentration, and extending the frame life. This achieves the technical effects of precise strengthening and fatigue life extension.

[0021] 5. The diagonal bracing and the main frame form a K-shaped structure. This design provides multi-directional support in terms of mechanical performance, which improves torsional stiffness and is suitable for complex locomotive working conditions. At the same time, the triangular gaps naturally formed between the diagonal bracing facilitate the insertion of tools to maintain internal components, achieving the dual technical effects of optimized mechanical performance and reserved maintenance space.

[0022] 6. The thickness of the main frame is greater than that of the reinforcing diagonal brace. This differential thickness design allows the main frame to bear the main static load, ensuring safety, while the reinforcing diagonal brace only needs to resist dynamic stress. The weight can be reduced by thinning the brace. At the same time, the differential thickness is achieved by rolling or welding, which reduces the processing difficulty and achieves the technical effect of scientific material distribution and simplified process.

[0023] 7. The integrated frame structure is fixed to the air source compartment / power battery compartment. This standardized design supports rapid adaptation to different compartments, shortens the vehicle development cycle, and avoids the risk of loosening of traditional bolted connections. It reduces the probability of connection failure under vibration environment and has the technical advantages of modular scalability and connection reliability.

[0024] 8. The wind source compartment and the power battery compartment are fixedly positioned opposite each other. This symmetrical layout balances the weight on both sides of the frame, reduces track wear caused by uneven operation, optimizes the compartment layout, avoids cross interference of pipelines or wiring harnesses, and achieves the technical effects of symmetrical load distribution and spatial coordination.

[0025] 9. The main frame and the reinforcing diagonal brace are reserved with maintenance clearance space. This ergonomically optimized design meets the operator's arm or tool access needs, reducing maintenance time. At the same time, the gap promotes air circulation and reduces the operating temperature of the fuel cell system, achieving the dual technical effects of convenient maintenance and improved heat dissipation.

[0026] 10. Some accessories are pre-embedded on the reinforcing diagonal brace. This design makes full use of the non-load-bearing surface of the reinforcing diagonal brace, reduces the need for additional supports, and achieves weight reduction. At the same time, it brings the controller closer to the pre-embedded hole of the wiring harness, shortens the wiring length, and reduces energy consumption and cost. It has the technical effects of efficient space utilization and wiring optimization. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the integrated framework of the hydrogen fuel cell system of this application.

[0028] Figure 2 This is a side view of the integrated frame of the hydrogen fuel cell system of this application.

[0029] The meanings of the various markings in the diagram are as follows: 100, main frame; 101, clearance space; 1, main frame; 2, reinforcing diagonal brace; 3, pre-filter installation pre-embedded; 4, air filter installation pre-embedded; 5, pipeline installation pre-embedded; 6, electrical DC installation pre-embedded; 7, radiator installation pre-embedded; 8, wiring harness installation pre-embedded. Detailed Implementation

[0030] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0032] Furthermore, it should be understood that in the description of this application, terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application 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 the present invention. Positional relationships such as "upstream" and "downstream" are based on the positional relationships during normal fluid flow.

[0033] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0036] like Figure 1-2 As shown, this utility model provides an integrated frame for a hydrogen fuel cell system of a locomotive. The integrated frame includes a frame body 100, on which fuel cell system installation pre-embedded parts and fuel cell system accessory installation pre-embedded parts are integrated.

[0037] This integrated design significantly reduces the overall weight by reducing the number of connecting parts in traditional split structures. At the same time, because the functional modules are pre-positioned, there is no need for repeated adjustments during assembly, which can shorten the working time. Furthermore, the integrated frame reduces the risk of loose connections and improves the system stability in vibration environments, achieving a comprehensive technical effect of structural integration, improved assembly efficiency, and enhanced reliability.

[0038] In practical production applications, the main frame 100 is generally formed by welding or casting metal pipes or plates. The metal main frame 100 ensures the reliable installation of the fuel cell system and its accessories. At the same time, the gaps between the metal pipes facilitate heat dissipation of the fuel cell system and improve its reliability.

[0039] In this application, the pre-embedded installation of fuel cell system components includes one or more of the following: pre-embedded piping installation 5, pre-embedded radiator installation 7, pre-embedded wiring harness installation 8, pre-embedded air filter installation 4, pre-filter installation 3, pre-embedded electrical controller installation, and pre-embedded electrical DC installation 6. This pre-embedded design, by planning the piping and wiring harness paths in advance, avoids stress concentration caused by later drilling or welding, extending the frame's lifespan. Simultaneously, the integrated layout reduces redundant space occupation, minimizing frame size. The standardized pre-embedded installation design also facilitates quick component replacement, reducing maintenance costs and achieving the technical effects of maximizing space utilization and improving maintenance convenience.

[0040] Furthermore, the main frame 100 includes a main frame 1 and reinforcing diagonal braces 2. This structural design allows the main frame 1 to bear the main load while the reinforcing diagonal braces 2 provide local reinforcement, avoiding the weight increase caused by overall thickening. This achieves a balance between lightweight and strength. Moreover, the reinforcing diagonal braces 2 are only used in critical areas, reducing the amount of high-strength materials used and lowering manufacturing costs, resulting in significant economic and performance advantages.

[0041] It is understood that in other embodiments, other reinforcing structures may also be used, such as adding horizontal or vertical reinforcing support structures between the main frames 1. The specific method of setting the reinforcing structure is not limited.

[0042] In a preferred embodiment, the frame body 100 includes a main frame 1 and reinforcing diagonal braces 2. The reinforcing diagonal braces 2 are set at stress concentration points, such as welded joints and load transfer nodes. High stress areas are located through finite element analysis, which improves the efficiency of the arrangement of the reinforcing diagonal braces 2, avoids unnecessary weight increase, and reduces the risk of cracks caused by stress concentration, thereby increasing the frame life and achieving the technical effects of precise strengthening and fatigue life extension.

[0043] The reinforced diagonal brace 2 and the main frame 1 preferably form a K-shaped structure. This design provides multi-directional support in terms of mechanical performance, which improves torsional stiffness and is suitable for complex locomotive working conditions. At the same time, the triangular gap naturally formed between the reinforced diagonal braces 2 facilitates the insertion of tools to maintain internal components, achieving the dual technical effects of optimized mechanical performance and reserved maintenance space.

[0044] Furthermore, the thickness of the main frame 1 is greater than that of the reinforcing diagonal brace 2. This differential thickness design allows the main frame 1 to bear the main static load, ensuring safety, while the reinforcing diagonal brace 2 only needs to resist dynamic stress. Reducing its thickness can reduce weight. At the same time, the differential thickness is achieved through rolling or welding, which reduces the processing difficulty and realizes the technical effects of scientific material distribution and simplified process.

[0045] In addition, a maintenance clearance space 101 is reserved between the main frame 1 and the reinforcing diagonal brace 2. This ergonomically optimized design meets the operator's arm or tool access needs, reducing maintenance time. At the same time, the gap promotes air circulation, reduces the operating temperature of the fuel cell system, and has the dual technical effects of convenient maintenance and improved heat dissipation.

[0046] Preferably, some accessories are pre-embedded on the reinforcing brace 2. This design makes full use of the non-load-bearing surface of the reinforcing brace 2, reduces the need for additional supports, and achieves weight reduction. At the same time, it brings the controller closer to the pre-embedded hole of the wiring harness, shortens the wiring length, and reduces energy consumption and cost. It has the technical effects of efficient space utilization and wiring optimization.

[0047] In a preferred embodiment of this application, the frame body 100 integrates a fixing position for connecting the air source compartment and the power battery compartment. This standardized design supports rapid adaptation of different compartments, shortens the vehicle development cycle, and at the same time avoids the risk of loosening of traditional bolt connections, reducing the probability of connection failure under vibration environment. It has the technical advantages of modular scalability and connection reliability.

[0048] Furthermore, the wind source compartment and the power battery compartment are fixedly positioned opposite each other. This symmetrical layout balances the weight on both sides of the frame, reduces track wear caused by uneven operation, optimizes the compartment layout, avoids interference from pipes or wiring harnesses, and achieves the technical effects of symmetrical load distribution and spatial coordination.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes and modifications made in accordance with the present invention are covered by the scope of the claims of the present invention, and will not be listed here.

Claims

1. An integrated frame for a hydrogen fuel cell system of a locomotive, comprising: The system includes a frame body, on which fuel cell system installation pre-embedded components and fuel cell system accessory installation pre-embedded components are integrated. The frame body includes a main frame and reinforcing diagonal braces, and at least some of the fuel cell system accessory installation pre-embedded components are disposed on the reinforcing diagonal braces.

2. The integrated frame for a hydrogen fuel cell system of a locomotive according to claim 1, characterized in that, The pre-embedded installation of fuel cell system accessories includes one or more of the following: pre-embedded installation of pipelines, pre-embedded installation of radiators, pre-embedded installation of wiring harnesses, pre-embedded installation of air filters, pre-embedded installation of pre-filters, pre-embedded installation of electrical controllers, and pre-embedded installation of electrical DC components.

3. The integrated frame for a hydrogen fuel cell system of a locomotive of claim 1, wherein, At least some of the reinforcing diagonal braces are located at stress concentration points.

4. The integrated frame for a hydrogen fuel cell system of a locomotive of claim 3, wherein, The reinforcing diagonal brace and the main frame form a K-shape.

5. The integrated frame for a hydrogen fuel cell system of a locomotive of claim 1, wherein, The thickness of the main frame is greater than the thickness of the reinforcing diagonal brace.

6. The integrated frame for a hydrogen fuel cell system of a locomotive of claim 1, wherein, The main frame also integrates a fixing position, which is used to fix it to the air source compartment or the power battery compartment.

7. The integrated frame for a hydrogen fuel cell system of a locomotive of claim 6, wherein, The fixed position includes a wind source compartment fixed position and a power battery compartment fixed position, and the wind source compartment fixed position and the power battery compartment fixed position are arranged opposite to each other.

8. The integrated frame for a hydrogen fuel cell system of a locomotive of claim 1, wherein, There is a maintenance clearance space between the main frame and the reinforcing diagonal brace.

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