Vehicle-mounted fuel system and vehicle

Abstract

The utility model discloses a vehicle-mounted fuel system and a vehicle. According to the vehicle-mounted fuel system, the connecting beam and the first protective beam are distributed at intervals in the first direction, and the orthographic projection of the connecting beam in the first direction and the orthographic projection of the first protective beam in the first direction are spliced into a ring shape. And a strap is arranged on the inner circumference of the connecting beam and / or the first protective beam. The first part of the connecting beam is fixedly connected to the bottom of the frame body, the second part of the connecting beam is located on the first side of the frame body in the second direction, and the second part extends in the third direction and can be detachably connected with the frame. The first end of the first protection beam is fixedly connected to the second side, in the second direction, of the frame body, the second end of the first protection beam is suspended on the first side, in the second direction, of the frame body, and the second end of the first protection beam extends in the third direction and is detachably connected with the frame. On the basis of guaranteeing the protection effect on the fuel bottle, the reliability of the fuel storage structure connected to the frame is improved, and the fuel storage structure is simple in structure, small in number of parts and light in weight.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an on-vehicle fuel system and a vehicle. Background Art

[0002] A fuel cell vehicle is a vehicle that uses the electric energy generated by the electrochemical reaction of hydrogen and oxygen in a fuel cell under the action of a catalyst and uses the electric energy as the main power source. As a hydrogen storage unit of a fuel cell vehicle, a hydrogen cylinder is essential for each fuel cell vehicle. Therefore, fixing the hydrogen cylinder to the hydrogen storage structure of the vehicle has also become an important aspect to ensure the safe operation of the fuel cell vehicle.

[0003] Among them, for a side-mounted hydrogen storage structure, a side-mounted hydrogen storage structure in the prior art mainly consists of a frame and a guard plate. The hydrogen cylinder is arranged inside the frame, and the guard plate surrounds the outer periphery of the frame to protect the hydrogen cylinder. The frame is connected to the vehicle frame beam to assemble the side-mounted hydrogen storage structure on the vehicle. However, the connecting beam of this frame is a square beam, and each corner of the square beam needs to be connected through a connecting piece, resulting in a complex side-mounted hydrogen storage structure, a large number of components, and a heavy weight. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an on-vehicle fuel system and a vehicle to solve the above problems existing in the side-mounted hydrogen storage structure in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An on-vehicle fuel system, including a fuel supply structure and a fuel storage structure. The fuel supply structure includes a fuel bottle, and the fuel storage structure includes a frame. The frame includes:

[0007] A frame body;

[0008] A combined beam, including a connecting beam and a first protection beam. The connecting beam and the first protection beam are spaced apart along a first direction, and the positive projection of the connecting beam along the first direction and the positive projection of the first protection beam along the first direction are spliced into a ring shape; a hoop belt is arranged on the inner circumference of the connecting beam and / or the first protection beam, and the hoop belt is used to fix the installation position of the fuel bottle;

[0009] A first part of the connecting beam is fixedly connected to the bottom of the frame body, and a second part of the connecting beam is located on a first side of the frame body along a second direction. The second part extends along a third direction and can be detachably connected to the vehicle frame;

[0010] The first end of the first protective beam is fixedly connected to the second side of the frame body along the second direction, the second end of the first protective beam is suspended on the first side of the frame body along the second direction, and the second end of the first protective beam extends along the third direction and is detachably connected to the vehicle frame; the first direction is perpendicular to the second direction and both are perpendicular to the third direction.

[0011] As a preferred solution of the above vehicle-mounted fuel system, the second part is provided with a first connection part, the second end of the first protective beam is provided with a second connection part, both the first connection part and the second connection part are detachably connected to the vehicle frame, and the first connection part and the second connection part are located in the same height area along the third direction.

[0012] As a preferred solution of the above vehicle-mounted fuel system, the number of the connecting beams is multiple, and the number of the first protective beams is multiple; the multiple connecting beams and the multiple first protective beams are alternately distributed along the first direction.

[0013] As a preferred solution of the above vehicle-mounted fuel system, the fuel supply structure further includes a fuel delivery component and a supplementary combustion component, the fuel delivery component is used for delivering the fuel in the fuel bottle to the fuel cell, and the supplementary combustion component is used for refueling the fuel bottle; the fuel storage structure further includes:

[0014] A bottom guard plate, covering the bottom of the frame body along the third direction;

[0015] A first side guard plate, covering the second side of the frame body along the second direction;

[0016] Two second side guard plates, one of the second side guard plates covers one end of the frame body along the first direction, and the other second side guard plate covers the other end of the frame body along the first direction;

[0017] An integrated space is formed between the outer periphery of the fuel bottle, the bottom guard plate, the first side guard plate and the two second side guard plates; the fuel delivery component and the supplementary combustion component are integrated in the integrated space.

[0018] As a preferred solution of the above vehicle-mounted fuel system, the vehicle-mounted fuel system includes two fuel storage structure groups, the two fuel storage structure groups are respectively located on both sides of the vehicle frame along the second direction, and each fuel storage structure group includes at least one of the fuel storage structures;

[0019] The vehicle-mounted fuel system includes a first strengthening structure located between two fuel storage structure groups. One end of the first strengthening structure is fixedly connected to the frame body of one of the fuel storage structure groups, and the other end of the first strengthening structure is fixedly connected to the frame body of the other fuel storage structure group. The pipeline of the fuel delivery component and / or the pipeline of the supplementary combustion component are integrated inside the first strengthening structure.

[0020] As a preferred solution of the above vehicle-mounted fuel system, the fuel delivery component includes a bottle valve, a pressure reducing valve, an evacuation valve, and a first electromagnetic switch valve. The fuel bottle, the bottle valve, the pressure reducing valve, the evacuation valve, the first electromagnetic switch valve, and the fuel cell are sequentially connected through a first pipeline. The integrated space integrates the bottle valve, the pressure reducing valve, the evacuation valve, the first electromagnetic switch valve, and the first pipeline.

[0021] As a preferred solution of the above vehicle-mounted fuel system, the fuel delivery component further includes a plurality of pressure sensors and a plurality of concentration sensors. The plurality of pressure sensors and the plurality of concentration sensors are spaced apart and distributed on the first pipeline.

[0022] The vehicle-mounted fuel system further includes a controller. The bottle valve, the first electromagnetic switch valve, the plurality of pressure sensors, and the plurality of concentration sensors are all electrically connected to the controller.

[0023] The fuel storage structure further includes a second strengthening structure fixedly connected to the frame body. The second strengthening structure is located inside the integrated space. The first side of the second strengthening structure along the second direction is detachably connected to the vehicle frame, and the second strengthening structure carries the controller, at least one of the pressure sensors, and at least one of the concentration sensors.

[0024] As a preferred solution of the above vehicle-mounted fuel system, the supplementary combustion component includes a supplementary combustion joint. The supplementary combustion joint is connected to the bottle valve through a second pipeline. The integrated space also integrates the supplementary combustion joint and the second pipeline, and a part of the supplementary combustion joint extends out of the first side guard plate.

[0025] As a preferred solution of the above vehicle-mounted fuel system, the bottom guard plate is provided with ventilation grilles; and / or

[0026] The first side guard plate is provided with ventilation grilles; and / or

[0027] The second side guard plate is provided with ventilation grilles.

[0028] A vehicle includes the vehicle frame and also includes the above vehicle-mounted fuel system.

[0029] The beneficial effects of the present utility model:

[0030] The present utility model provides a vehicle-mounted fuel system and a vehicle. In this vehicle-mounted fuel system, a connecting beam and a first protective beam are arranged at intervals in a first direction, and the orthographic projection of the connecting beam in the first direction and the orthographic projection of the first protective beam in the first direction are spliced into a ring shape, and a hoop band is provided on the inner circumference of the connecting beam and / or the first protective beam. It can be understood that after the installation position of the fuel cylinder is fixed by the hoop band, the orthographic projection of the fuel cylinder in the first direction is located within the ring. In this way, the fuel cylinder can be assembled to the vehicle frame, and the outer circumference of the fuel cylinder can be effectively protected.

[0031] It can be understood that the second part of the connecting frame and the second end of the first protective beam are arranged at intervals in the first direction. The connecting beam and the first protective beam are alternately connected to the vehicle frame in the first direction. Compared with the prior art, the number of connection points between the fuel storage structure and the vehicle frame increases, and the two connection points between the fuel storage structure and the vehicle frame are arranged at intervals. Therefore, the reliability of the connection between the fuel storage structure and the vehicle frame can be effectively improved. Secondly, the connecting frame and the first protective beam are arranged at intervals in the first direction, and the second end of the first protective beam is suspended, so that the extension length of the connecting beam in a third direction can be effectively shortened, and the extension length of the second end of the first protective beam in the third direction can be effectively shortened. Thus, the weight of the fuel storage structure can be effectively reduced. Secondly, compared with the prior art where each corner of a square beam needs to be connected by a connecting piece, the number of connecting pieces is reduced, the structure of the fuel storage structure can be simplified, and thus the weight of the fuel storage structure can be further reduced.

[0032] Therefore, on the basis of ensuring the protection effect on the fuel cylinder, the vehicle-mounted fuel system improves the reliability of the connection between the fuel storage structure and the vehicle frame, has a simple structure, few components, and is light in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the vehicle-mounted fuel system provided by a specific embodiment of the present utility model from a first perspective;

[0034] Figure 2 is a partial structural schematic diagram of the vehicle-mounted fuel system provided by a specific embodiment of the present utility model Figure 1 ;

[0035] Figure 3 is a partial structural schematic diagram of the vehicle-mounted fuel system provided by a specific embodiment of the present utility model Figure 2 ;

[0036] Figure 4 is a schematic structural diagram of the vehicle-mounted fuel system provided by a specific embodiment of the present utility model from a second perspective;

[0037] Figure 5 is a schematic diagram of the principle of the fuel supply structure provided by a specific embodiment of the present utility model;

[0038] Figure 6 It is the schematic diagram of the bottle mouth valve provided by the specific embodiment of the present utility model.

[0039] In the figure:

[0040] 100, fuel cell;

[0041] 1, fuel bottle;

[0042] 2, frame; 21, frame body; 22, connecting beam; 221, first connecting part; 23, first protective beam; 231, second connecting part; 24, hoop; 25, second protective beam;

[0043] 31, bottom guard plate; 32, first side guard plate; 33, second side guard plate; 331, sub - guard plate; 34, ventilation grille;

[0044] 4, first strengthening structure; 41, first strengthening beam; 42, outer cover;

[0045] 51, bottle mouth valve; 511, overflow valve; 512, second electromagnetic solenoid valve; 513, first one - way valve; 514, manual normally - open switch valve; 515, second filter; 516, manual normally - closed switch valve; 517, temperature sensor; 518, first safety relief valve; 52, combination valve; 521, pressure reducing valve; 522, first electromagnetic solenoid valve; 53, drain valve; 54, first pressure sensor; 55, second pressure sensor; 56, third pressure sensor; 57, first filter; 58, unloading valve;

[0046] 6, controller;

[0047] 7, second strengthening structure;

[0048] 81, after - combustion joint; 82, third filter; 83, second one - way valve; 84, pressure gauge;

[0049] 91, second safety relief valve; 92, relief pipeline;

[0050] 10, discharge joint. Specific implementation mode

[0051] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0052] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0054] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0055] The present utility model provides an on-vehicle fuel system. As Figures 1 to 3As shown in the figure, the vehicle-mounted fuel system includes a fuel supply structure and a fuel storage structure. The fuel supply structure includes a fuel bottle 1. The fuel storage structure includes a frame 2. The frame 2 includes a frame body 21 and a combined beam. The combined beam includes a connecting beam 22 and a first protective beam 23. The connecting beam 22 and the first protective beam 23 are spaced apart along a first direction, and the orthographic projection of the connecting beam 22 along the first direction and the orthographic projection of the first protective beam 23 along the first direction are spliced into a ring shape. A hoop 24 is provided on the inner circumference of the connecting beam 22 and / or the first protective beam 23, and the hoop 24 is used to fix the installation position of the fuel bottle 1. The first part of the connecting beam 22 is fixedly connected to the bottom of the frame body 21. The second part of the connecting beam 22 is located on the first side of the frame body 21 along a second direction. The second part extends along a third direction and is detachably connected to the vehicle frame. The first end of the first protective beam 23 is fixedly connected to the second side of the frame body 21 along the second direction. The second end of the first protective beam 23 is suspended on the first side of the frame body 21 along the second direction. The second end of the first protective beam 23 extends along the third direction and is detachably connected to the vehicle frame. The first direction is perpendicular to the second direction and both are perpendicular to the third direction.

[0056] For this vehicle-mounted fuel system, the connecting beam 22 and the first protective beam 23 are arranged at intervals along the first direction, and the orthographic projection of the connecting beam 22 along the first direction and the orthographic projection of the first protective beam 23 along the first direction are spliced into a ring shape, and a hoop 24 is provided on the inner circumference of the connecting beam 22 and / or the first protective beam 23. It can be understood that after the installation position of the fuel bottle 1 is fixed by the hoop 24, the orthographic projection of the fuel bottle 1 along the first direction is located inside the ring. In this way, the fuel bottle 1 can be assembled to the vehicle frame, and the outer circumference of the fuel bottle 1 can be effectively protected.

[0057] It can be understood that the second part of the connecting beam and the second end of the first protective beam 23 are spaced apart along the first direction. This enables the connecting beam 22 and the first protective beam 23 to be alternately connected to the vehicle frame along the first direction. Compared with the prior art, the number of connection points between the fuel storage structure and the vehicle frame increases, and the two connection points between the fuel storage structure and the vehicle frame are spaced apart. Therefore, the reliability of the connection between the fuel storage structure and the vehicle frame can be effectively improved. Secondly, the connecting beam and the first protective beam 23 are spaced apart along the first direction, and the second end of the first protective beam 23 is suspended, which can effectively shorten the extension length of the connecting beam 22 along the third direction and can effectively shorten the extension length of the second end of the first protective beam 23 along the third direction, thereby effectively reducing the weight of the fuel storage structure. Secondly, compared with the prior art where each corner of the square beam needs to be connected by a connecting piece, the number of connecting pieces is reduced, the structure of the fuel storage structure can be simplified, and thus the weight of the fuel storage structure can be further reduced.

[0058] Therefore, on the basis of ensuring the protection effect on the fuel bottle 1, this vehicle-mounted fuel system improves the reliability of the connection between the fuel storage structure and the vehicle frame, has a simple structure, fewer components, and a light weight.

[0059] In this embodiment, by way of example, the fuel bottle 1 is a hydrogen bottle. In other embodiments, the fuel in the fuel bottle 1 can also be an alkane fuel or the like.

[0060] In this embodiment, as Figures 1 to 3 shown, by way of example, hoop bands 24 are provided on the inner periphery of the connecting beam 22. As an alternative solution, hoop bands 24 are provided on the inner periphery of the first protective beam 23. As another alternative solution, hoop bands 24 are provided on both the inner periphery of the connecting beam 22 and the inner periphery of the first protective beam 23. Among them, the specific structure of the hoop band 24 belongs to the prior art and will not be elaborated here. The specific structure of the hoop band 24 provided on the connecting beam 22 and the specific structure of the hoop band 24 provided on the first protective beam 23 both belong to the prior art and will not be elaborated here.

[0061] Specifically, when connecting the connecting beam 22 and the first protective beam 23 to the vehicle frame, the first direction is parallel to the length direction of the vehicle. The second direction is parallel to the width direction of the vehicle. The third direction is parallel to the height direction of the vehicle.

[0062] Among them, as Figures 1 to 3 shown, the second part of the connecting beam 22 is provided with a first connecting portion 221, and the second end of the first protective beam 23 is provided with a second connecting portion 231. Both the first connecting portion 221 and the second connecting portion 231 are detachably connected to the vehicle frame, and the first connecting portion 221 and the second connecting portion 231 are located in the same height region along the third direction. Such a setting enables both the second part of the connecting beam 22 and the second end of the first protective beam 23 to be directly connected to the cross beam. There is no need to additionally provide an intermediate connecting structure to connect the cross beam and the second part of the connecting beam 22, nor is there a need to externally provide an intermediate connecting structure to connect the cross beam and the second end of the first protective beam 23. To further enhance the lightweight effect of the fuel storage structure.

[0063] In this embodiment, both the first connecting portion 221 and the second connecting portion 231 are connected to the cross beam of the vehicle frame. Exemplarily, the first connecting portion 221 is connected to the cross beam by bolts and nuts. The second connecting portion 231 is also connected to the cross beam by bolts and nuts.

[0064] In this embodiment, as Figures 1 to 3 shown, the connecting beam 22 is an integrally formed "L"-shaped beam. That is, the first connecting portion 221 is integrally formed on the connecting beam 22. It is convenient for assembly and can further reduce the number of components. As an alternative solution, the connecting beam 22 includes two connecting sub-beams, and the two connecting sub-beams are spliced to form the connecting beam 22.

[0065] In this embodiment, the first protective beam 23 includes a plurality of protective sub-beams, and the plurality of protective sub-beams are spliced to form the first protective beam 23. The second connecting portion 231 is one of the protective sub-beams, which facilitates the assembly of the fuel bottle 1 to the frame body 21. As an alternative solution, the first protective beam 23 is an integrally formed beam.

[0066] Preferably, as Figures 1 to 3 shown, the number of connecting beams 22 is multiple, and the number of first protective beams 23 is multiple, which further improves the connection reliability between the fuel storage structure and the cross beam and further enhances the protection effect on the fuel bottle 1.

[0067] Further preferably, as Figures 1 to 3 shown, the multiple connecting beams 22 and the multiple first protective beams 23 are alternately distributed in the first direction, which can improve the stability of the connection between the fuel storage structure and the cross beam. As an alternative solution, multiple connecting beams 22 and multiple first protective beams 23 can also be arranged at intervals in the first direction in sequence, or at least two first protective beams 23 can be arranged between any two adjacent connecting beams 22, etc.

[0068] In this embodiment, as Figures 1 to 3 shown, exemplarily, the number of connecting beams 22 is two, and the number of first protective beams 23 is three. The two connecting beams 22 and the three first protective beams 23 are alternately distributed, that is, there is one connecting beam 22 distributed between any two adjacent first protective beams 23.

[0069] Preferably, as Figure 2 shown, a second protective beam 25 is connected between any two adjacent first protective beams 23, and second protective beams 25 are also connected between the two first protective beams 23 at both ends distributed in the first direction and the frame body 21, which can effectively improve the structural strength of the fuel storage structure.

[0070] Among them, as Figures 1 to 5 shown, the fuel supply structure further includes a fuel delivery component and a supplementary fuel component. The fuel delivery component is used to deliver the fuel in the fuel bottle 1 to the fuel cell 100, and the supplementary fuel component is used to replenish fuel to the fuel bottle 1. The fuel storage structure further includes a bottom guard plate 31, a first side guard plate 32, and two second side guard plates 33. The bottom guard plate 31 covers the bottom of the frame body 21 in the third direction, the first side guard plate 32 covers the second side of the frame body 21 in the second direction, one second side guard plate 33 covers one end of the frame body 21 in the first direction, and the other second side guard plate 33 covers the other end of the frame body 21 in the first direction. An integrated space is formed between the outer periphery of the fuel bottle 1, the bottom guard plate 31, the first side guard plate 32, and the two second side guard plates 33. The integrated space integrates the fuel delivery component and the supplementary fuel component. With such a setting, it can not only protect the fuel bottle 1, but also protect the fuel delivery component and the supplementary fuel component, and can also improve the integration degree of the vehicle-mounted fuel system.

[0071] In this embodiment, it is preferred that the first protective beam 23, the second protective beam 25 and the frame body 21 are all connected to the first side guard plate 32 to improve the connection reliability of the first side guard plate 32.

[0072] Optionally, the vehicle-mounted fuel system includes two fuel storage structure groups. The two fuel storage structure groups are respectively located on both sides of the vehicle frame along the second direction, that is, on both sides of the cross beam. Each fuel storage structure group includes at least one fuel storage structure. Further, when the fuel storage structure group includes a plurality of fuel storage structures, the plurality of fuel storage structures are arranged in an array, and the frame bodies 21 of any two adjacent fuel storage structures are fixedly connected to enable a plurality of fuel bottles 1 to be integrated on the vehicle.

[0073] It can be understood that the first side along the second direction is the side where the two fuel storage structure groups are close to each other along the second direction. The second side along the second direction is the side where the two fuel storage structure groups are far from each other along the second direction.

[0074] Preferably, as Figures 1 to 4 shown, the vehicle-mounted fuel system further includes a first strengthening structure 4. The first strengthening structure 4 is located between the two fuel storage structure groups. One end of the first strengthening structure 4 is fixedly connected to the frame body 21 of one fuel storage structure group, and the other end of the first strengthening structure 4 is fixedly connected to the frame body 21 of the other fuel storage structure group. The pipeline of the fuel delivery component and / or the pipeline of the supplementary combustion component are integrated inside the first strengthening structure 4. The first strengthening structure 4 can not only define the relative positions of the two fuel storage structure groups, but also improve the structural strength of the vehicle-mounted fuel system, and can also integrate the pipeline of the fuel delivery component and / or the pipeline of the supplementary combustion component, thereby further improving the integration degree of the vehicle-mounted fuel system.

[0075] In this embodiment, as Figures 1 to 4 shown, it is exemplarily set that each fuel storage structure group includes one fuel storage structure. The two ends of the first strengthening structure 4 are fixedly connected to the frame bodies 21 of the two fuel storage structures in a one-to-one correspondence. Further, the two ends of the first strengthening structure 4 are fixedly connected to the first side along the second direction of the two frame bodies 21 in a one-to-one correspondence. Further, along the third direction, the first strengthening structure 4 is close to the bottom of the frame body 21. With such a setting, the vehicle-mounted fuel system is distributed in a side-hanging manner on both sides in the width direction of the vehicle frame, so that the formed overall structure is compactly arranged, the vehicle space can be effectively utilized, and the occupation of the cargo space in the carriage can be effectively reduced.

[0076] In this embodiment, as Figures 1 to 4As shown, the first reinforcement structure 4 includes a first reinforcement beam 41 and a housing 42 connected to the outer periphery of the first reinforcement beam 41. Both ends of the first reinforcement beam 41 correspond to and are fixedly connected to the first sides of the two frame bodies 21 along the second direction one by one. The pipeline of the fuel delivery assembly and / or the pipeline of the afterburning assembly can be integrated inside the first reinforcement beam 41. The housing 42 can protect the first reinforcement beam 41 and the pipelines inside it.

[0077] Among them, as Figures 1 to 3 , and Figure 5 shown, the fuel delivery assembly includes a bottle mouth valve 51, a pressure reducing valve 521, an evacuation valve 53, a first electromagnetic switch valve 522. The fuel bottle 1, the bottle mouth valve 51, the pressure reducing valve 521, the evacuation valve 53, the first electromagnetic switch valve 522 and the fuel cell 100 are connected in sequence through a first pipeline. The integrated space integrates the bottle mouth valve 51, the pressure reducing valve 521, the evacuation valve 53, the first electromagnetic switch valve 522 and the first pipeline. So as to effectively protect the integrated bottle mouth valve 51, the pressure reducing valve 521, the evacuation valve 53, the first electromagnetic switch valve 522 and the first pipeline.

[0078] When fuel needs to be delivered to the fuel cell 100, the bottle mouth valve 51 and the first electromagnetic switch valve 522 are opened. The fuel flows through the bottle mouth valve 51, the pressure reducing valve 521, the evacuation valve 53 and the first electromagnetic switch valve 522 in sequence through the first pipeline, and finally flows to the fuel cell 100. In this embodiment, preferably, the pressure reducing valve 521 and the first electromagnetic switch valve 522 are integrated into a combined valve 52.

[0079] Preferably, the fuel delivery assembly further includes a plurality of pressure sensors and a plurality of concentration sensors. The plurality of pressure sensors and the plurality of concentration sensors are both spaced apart and distributed on the first pipeline. So as to be able to monitor the pressure and concentration of the fuel in the first pipeline in real time.

[0080] Specifically, as Figures 1 to 3 , and Figure 5 shown, the vehicle-mounted fuel system further includes a controller 6. The bottle mouth valve 51, the first electromagnetic switch valve 522, the plurality of pressure sensors and the plurality of concentration sensors are all electrically connected to the controller 6. The controller 6 can control the bottle mouth valve 51, the first electromagnetic switch valve 522, etc. according to the received pressure signal and concentration signal. In this embodiment, the controller 6 is a fuel system controller. The fuel system controller is electrically connected to the vehicle controller.

[0081] Specifically, as Figures 1 to 3 , and Figure 5As shown, the fuel storage structure further includes a second reinforcement structure 7 fixedly connected to the frame body 21. The second reinforcement structure 7 is located within the integrated space. The first side of the second reinforcement structure 7 along the second direction is detachably connected to the vehicle frame, and the second reinforcement structure 7 carries a controller 6, at least one pressure sensor, and at least one concentration sensor. This can not only further improve the connection reliability of the fuel storage structure connected to the crossbeam, but also facilitate the integration of the controller 6, pressure sensors, concentration sensors, etc. within the integrated space.

[0082] In this embodiment, as Figures 1 to 3 shown, exemplarily, the controller 6 is carried on the second reinforcement structure 7 of one of the fuel storage structures. And the controller 6 is also connected to a first protective beam 23 adjacent to the second reinforcement structure 7 to ensure the connection reliability of the controller 6. A pressure sensor and two concentration sensors are carried on the second reinforcement structure 7 of another fuel storage structure.

[0083] In this embodiment, as Figure 5 shown, the multiple pressure sensors include a first pressure sensor 54, a second pressure sensor 55, and a third pressure sensor 56. The first pressure sensor 54 is arranged on the pipeline connecting the bottle valve 51 and the pressure reducing valve 521. The second pressure sensor 55 is arranged on the pipeline connecting the pressure reducing valve 521 and the evacuation valve 53. The third pressure sensor 56 is arranged on the pipeline connecting the evacuation valve 53 and the fuel cell 100. The first pressure sensor 54 is carried on the second reinforcement structure 7 of another fuel storage structure.

[0084] In this embodiment, the multiple concentration sensors include a first concentration sensor and a second concentration sensor. The first concentration sensor is arranged on the pipeline connecting the bottle valve 51 and the fuel cell 100. The second concentration sensor is arranged on the first pipeline and at the inlet of the fuel cell 100. When the first concentration sensor detects a change in the fuel concentration, and / or when the second concentration sensor detects a change in the fuel concentration, it indicates that there is a fuel leakage phenomenon. At this time, the first concentration sensor emits an alarm signal corresponding to the detected fuel concentration level. The second concentration sensor emits an alarm signal corresponding to the detected fuel concentration level. The vehicle controller 6 controls the vehicle to perform actions such as parking based on the alarm signals emitted by the first concentration sensor and the second concentration sensor. Both the first concentration sensor and the second concentration sensor are carried on the second reinforcement structure 7 of another fuel storage structure.

[0085] Preferably, as Figure 2 and Figure 5 shown, the fuel delivery assembly further includes a first filter 57. The first filter 57 is used to filter the fuel delivered from the fuel bottle 1 to the fuel cell 100. In this embodiment, exemplarily, the first filter 57 is arranged on the connection between the bottle valve 51 and the pressure reducing valve 521.

[0086] Preferably, as Figure 5 shown, the fuel delivery assembly further includes a relief valve 58 disposed on the first pipeline. When the pressure of the fuel in the first pipeline exceeds the maximum set pressure, the relief valve 58 communicates with the outside to relieve pressure. In this embodiment, the relief valve 58 is disposed on the pipeline connecting the pressure reducing valve 521 and the vent valve 53. Preferably, the relief valve 58 is an automatic relief valve. To improve the safety of the vehicle fuel system.

[0087] Preferably, the vent valve 53 is a manual vent valve. It is possible to manually control the vent valve 53 to relieve pressure according to the pressure of the fuel in the first pipeline, so as to further improve the safety of the vehicle fuel system.

[0088] Specifically, in this embodiment, as Figure 5 and Figure 6 shown, the bottle neck valve 51 includes an overflow valve 511, a second electromagnetic switch valve 512 and a first one-way valve 513. The fuel bottle 1, the overflow valve 511, the second electromagnetic switch valve 512 and the first filter 57 are connected in sequence. The first one-way valve 513 is connected in parallel at both ends of the second electromagnetic switch valve 512, and the input end of the first one-way valve 513 is connected to the output end of the supplementary combustion assembly, and the output end of the first one-way valve 513 is connected to the overflow valve 511. The second electromagnetic switch valve 512 is electrically connected to the controller 6.

[0089] When fuel is to be delivered to the fuel cell 100, the controller 6 controls the opening of the first electromagnetic switch valve 522 and the second electromagnetic switch valve 512, and the fuel flows through the overflow valve 511, the second electromagnetic switch valve 512, the first pressure sensor 54, the pressure reducing valve 521, the second pressure sensor 55, the relief valve 58, the vent valve 53, the first electromagnetic switch valve 522 and the third pressure sensor 56 in sequence through the first pipeline, and finally flows to the fuel cell 100.

[0090] When the supplementary combustion assembly replenishes fuel into the fuel bottle 1, the fuel flows through the first one-way valve 513 and the overflow valve 511 in sequence, and finally flows into the fuel bottle 1.

[0091] Preferably, as Figure 5 and Figure 6 shown, the bottle neck valve 51 further includes a manual normally open switch valve 514, and the manual normally open switch valve 514 is disposed on the pipeline connecting the overflow valve 511 and the second electromagnetic switch valve 512. To ensure the reliability of fuel delivery to the fuel cell 100.

[0092] Preferably, as Figure 5 and Figure 6As shown, the bottle neck valve 51 further includes a second filter 515, and the second filter 515 is used to filter the fuel delivered from the fuel bottle 1 to the second electromagnetic switch valve 512. In this embodiment, the second filter 515 is exemplarily arranged on the pipeline where the fuel bottle 1 communicates with the overflow valve 511.

[0093] Preferably, as Figure 5 and Figure 6 shown, the bottle neck valve 51 further includes a manual normally closed switch valve 516. The input end of the manual normally closed switch valve 516 is communicated with the input end of the overflow valve 511, and the output end of the manual normally closed switch valve 516 is communicated with both the output end of the second electromagnetic switch valve 512 and the input end of the first one-way valve 513. It can be understood that the combined structure formed by the second filter 515, the overflow valve 511, the manual normally open switch valve 514, the second electromagnetic switch valve 512 and the first one-way valve 513 is arranged in parallel with the manual normally closed switch valve 516 to further ensure the reliability of fuel delivery to the fuel cell 100.

[0094] Preferably, as Figure 5 and Figure 6 shown, the bottle neck valve 51 further includes a temperature sensor 517. The temperature sensor 517 is arranged on the first pipeline and is located at the input ends of the combined structure and the manual normally closed switch valve 516.

[0095] Preferably, as Figure 5 and Figure 6 shown, the bottle neck valve 51 further includes a first safety relief valve 518. The first safety relief valve 518 is arranged on the first pipeline and is located at the input ends of the combined structure and the manual normally closed switch valve 516. In this embodiment, the temperature sensor 517 is exemplarily arranged upstream of the first safety relief valve 518. When the temperature of the fuel in the first pipeline is greater than the maximum set temperature value, the first safety relief valve 518 automatically communicates with the outside.

[0096] More specifically, in this embodiment, when fuel is to be delivered to the fuel cell 100, the controller 6 will first control to check whether there are faults in each component of the fuel delivery assembly. If there are no faults in each component of the fuel delivery assembly, the first electromagnetic switch valve 522 will be opened first, and then the second electromagnetic switch valve 512 will be opened.

[0097] Among them, as Figure 5 and Figure 6 shown, a second safety relief valve 91 is further communicated and arranged at the tail of the fuel bottle 1. When the temperature of the fuel in the fuel bottle 1 is greater than the maximum set temperature value, the second safety relief valve 91 automatically communicates with the outside.

[0098] Specifically, in this embodiment, as Figure 5 and Figure 6As shown, the output ends of the first safety relief valve 518, the second safety relief valve 91, and the drain valve 53 are all communicated with the outside through a drain joint 10. The drain joint 10 is located in the integrated space. The drain joint 10 is communicated with the outside through a pipeline. In this embodiment, as Figure 2 and Figure 5 shown, the pipeline through which the output end of the second safety relief valve 91 is communicated with the drain joint 10 is a relief pipeline 92, and the relief pipeline 92 extends along the first direction.

[0099] Among them, as Figure 2 and Figure 5 shown, the afterburning assembly includes an afterburning joint 81, and the afterburning joint 81 is communicated with the bottle neck valve 51 through a second pipeline; the integrated space is also used to integrate the afterburning joint 81 and the second pipeline, and a part of the afterburning joint 81 extends out of the first side guard plate 32. So as to effectively protect the afterburning joint 81 and the second pipeline. When the afterburning assembly replenishes fuel into the fuel bottle 1, fuel is transported into the second pipeline through the afterburning joint 81, and the fuel flows through the first one-way valve 513 and the overflow valve 511 in sequence, and finally flows into the fuel bottle 1.

[0100] Preferably, as Figure 5 shown, the afterburning assembly further includes a third filter 82, and the third filter 82 is used to filter the fuel transported from the afterburning joint 81 to the fuel bottle 1. In this embodiment, the third filter 82 is exemplarily arranged at the output end of the second pipeline. And the third filter 82 is integrated in the integrated space.

[0101] Preferably, as Figure 5 shown, the afterburning assembly further includes a second one-way valve 83, and the second one-way valve 83 can make the fuel input from the afterburning joint 81 into the second pipeline flow unidirectionally to the fuel bottle 1. In this embodiment, the second one-way valve 83 is exemplarily arranged on the pipeline through which the afterburning joint 81 is communicated with the third filter 82. It can be understood that when the afterburning assembly replenishes fuel into the fuel bottle 1, it can directly afterburn into the fuel bottle 1 without being controlled by the controller 6; and when the afterburning is over, based on the unidirectional flow function of the second one-way valve 83, there is no need to additionally set up a switching valve or other structures.

[0102] Preferably, as Figure 5 shown, a pressure gauge 84 is provided at the output end of the afterburning joint 81. It can monitor the pressure of the fuel input from the afterburning joint 81 into the second pipeline. As an alternative solution, the pressure gauge 84 can also be replaced by a fourth pressure sensor, and the fourth pressure sensor is electrically connected to the controller 6. It can also monitor the pressure of the fuel input from the afterburning joint 81 into the second pipeline.

[0103] In this embodiment, as Figure 5As shown, the number of fuel bottles 1 and bottle neck valves 51 is also two each, and the two fuel storage structures, two fuel bottles 1 and two bottle neck valves 51 are arranged in one-to-one correspondence. In this embodiment, the pipelines integrated in the first reinforcing beam 41 are the pipelines connecting the output ends of the two bottle neck valves 51 to the first filter 57.

[0104] Optionally, as Figure 1 , Figure 3 and Figure 4 shown, the bottom guard plate 31 is provided with ventilation grilles 34. And / or, the first side guard plate 32 is provided with ventilation grilles 34. And / or, the second side guard plate 33 is provided with ventilation grilles 34. So that the fuel bottles 1, fuel delivery components and supplementary combustion components in the fuel storage structure can all be ventilated. In this embodiment, it is preferred that the bottom guard plate 31 is provided with ventilation grilles 34, and the first side guard plate 32 is provided with ventilation grilles 34, and the second side guard plate 33 is provided with ventilation grilles 34. To improve the ventilation effect.

[0105] In this embodiment, as Figure 1 , Figure 3 and Figure 4 shown, the second side guard plate 33 includes two sub guard plates 331 that are distributed at an obtuse angle and connected to each other. To better avoid the carriage.

[0106] In this embodiment, the frame body 21 is spliced by a plurality of sub beams. The specific structure of the frame body 21 belongs to the prior art and will not be elaborated here.

[0107] The present utility model also provides a vehicle, including a vehicle frame, and further including the above-mentioned vehicle-mounted fuel system. By adopting the above-mentioned vehicle-mounted fuel system, the reliability of connecting the fuel storage structure to the vehicle frame can be improved, and the modularization and integration effects of the vehicle can be improved.

[0108] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limiting the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Vehicle fuel system, including a fuel supply structure and a fuel storage structure, the fuel supply structure including a fuel bottle (1), and the fuel storage structure including a frame (2), characterized in that, The frame (2) includes: A frame body (21); A combined beam, including a connecting beam (22) and a first protective beam (23). The connecting beam (22) and the first protective beam (23) are spaced apart along a first direction, and the orthographic projection of the connecting beam (22) along the first direction and the orthographic projection of the first protective beam (23) along the first direction are spliced into a ring shape. A hoop band (24) is provided on the inner circumference of the connecting beam (22) and / or the first protective beam (23), and the hoop band (24) is used to fix the installation position of the fuel bottle (1); A first part of the connecting beam (22) is fixedly connected to the bottom of the frame body (21), and a second part of the connecting beam (22) is located on a first side of the frame body (21) along a second direction. The second part extends along a third direction and can be detachably connected to the vehicle frame; A first end of the first protective beam (23) is fixedly connected to a second side of the frame body (21) along the second direction, a second end of the first protective beam (23) is suspended on the first side of the frame body (21) along the second direction, and the second end of the first protective beam (23) extends along the third direction and is detachably connected to the vehicle frame. The first direction is perpendicular to the second direction and both are perpendicular to the third direction.

2. The on-vehicle fuel system according to claim 1, wherein The second part is provided with a first connecting portion (221), and the second end of the first protective beam (23) is provided with a second connecting portion (231). The first connecting portion (221) and the second connecting portion (231) are both detachably connected to the vehicle frame, and the first connecting portion (221) and the second connecting portion (231) are located in the same height region along the third direction.

3. The on-vehicle fuel system according to claim 1, wherein The number of the connecting beams (22) is multiple, and the number of the first protective beams (23) is multiple; the multiple connecting beams (22) and the multiple first protective beams (23) are alternately distributed along the first direction.

4. The on-vehicle fuel system according to any one of claims 1 to 3, characterized in that, The fuel supply structure further includes a fuel delivery assembly and a supplementary combustion assembly. The fuel delivery assembly is used to deliver the fuel in the fuel bottle (1) to the fuel cell (100), and the supplementary combustion assembly is used to supply fuel to the fuel bottle (1). The fuel storage structure further includes: A bottom guard plate (31) covering the bottom of the frame body (21) along the third direction; A first side guard plate (32) covering the second side of the frame body (21) along the second direction; Two second side guard plates (33), one of the second side guard plates (33) covers one end of the frame body (21) along the first direction, and the other second side guard plate (33) covers the other end of the frame body (21) along the first direction; An integrated space is formed between the outer circumference of the fuel bottle (1), the bottom guard plate (31), the first side guard plate (32) and the two second side guard plates (33); the fuel delivery assembly and the supplementary combustion assembly are integrated in the integrated space.

5. The on-vehicle fuel system according to claim 4, wherein The vehicle-mounted fuel system includes two fuel storage structure groups, which are respectively located on both sides of the vehicle frame along the second direction, and each fuel storage structure group includes at least one fuel storage structure; The vehicle-mounted fuel system further includes a first strengthening structure (4), which is located between the two fuel storage structure groups. One end of the first strengthening structure (4) is fixedly connected to the frame body (21) of one of the fuel storage structure groups, and the other end of the first strengthening structure (4) is fixedly connected to the frame body (21) of the other fuel storage structure group; The pipeline of the fuel delivery assembly and / or the pipeline of the supplementary combustion assembly are integrated inside the first strengthening structure (4).

6. The on-vehicle fuel system according to claim 4, characterized in that, The fuel delivery assembly includes a bottle mouth valve (51), a pressure reducing valve (521), an evacuation valve (53), and a first electromagnetic switch valve (522). The fuel bottle (1), the bottle mouth valve (51), the pressure reducing valve (521), the evacuation valve (53), the first electromagnetic switch valve (522), and the fuel cell (100) are sequentially connected through a first pipeline; The integrated space integrates the bottle mouth valve (51), the pressure reducing valve (521), the evacuation valve (53), the first electromagnetic switch valve (522), and the first pipeline.

7. The on-vehicle fuel system according to claim 6, wherein, The fuel delivery assembly further includes a plurality of pressure sensors and a plurality of concentration sensors, and the plurality of pressure sensors and the plurality of concentration sensors are distributed at intervals along the first pipeline; The vehicle-mounted fuel system further includes a controller (6), and the bottle mouth valve (51), the first electromagnetic switch valve (522), the plurality of pressure sensors, and the plurality of concentration sensors are all electrically connected to the controller (6); The fuel storage structure further includes a second strengthening structure (7) fixedly connected to the frame body (21). The second strengthening structure (7) is located inside the integrated space. The first side of the second strengthening structure (7) along the second direction is detachably connected to the vehicle frame, and the second strengthening structure (7) carries the controller (6), at least one of the pressure sensors, and at least one of the concentration sensors.

8. The on-vehicle fuel system according to claim 6, wherein The supplementary combustion assembly includes a supplementary combustion joint (81), and the supplementary combustion joint (81) is connected to the bottle mouth valve (51) through a second pipeline; The integrated space also integrates the supplementary combustion joint (81) and the second pipeline, and the supplementary combustion joint (81) partially extends out of the first side guard plate (32).

9. The vehicle-mounted fuel system according to claim 4, wherein: The bottom guard plate (31) is provided with a ventilation grille (34); and / or, The first side guard plate (32) is provided with a ventilation grille (34); and / or, The second side guard plate (33) is provided with a ventilation grille (34).

10. A vehicle, including the vehicle frame, characterized in that, It further includes the vehicle-mounted fuel system according to any one of claims 1-9.

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