Hydrogen exchange type vehicle-mounted hydrogen supply system

Abstract

The utility model discloses a kind of hydrogen replacement vehicle-mounted hydrogen supply systems, belong to vehicle-mounted hydrogen supply system field, including main frame;Hydrogen replacement bottom frame is fixed on whole vehicle chassis, hydrogen replacement bottom frame is detachably arranged at the bottom of main frame, hydrogen replacement bottom frame is provided with multiple system quick installation mechanism, main frame is detachably connected with hydrogen replacement bottom frame by system quick installation mechanism;Hydrogen outlet module, hydrogen outlet module is fixedly arranged below main frame, and it is arranged on hydrogen replacement bottom frame;Hydrogen gas docking module, hydrogen gas docking module is installed on hydrogen replacement bottom frame, hydrogen outlet module is connected with hydrogen gas docking module, to realize hydrogen gas pipeline connection, the utility model fixes hydrogen replacement bottom frame on whole vehicle chassis, and with main frame is realized detachably connected by system quick installation mechanism, and hydrogen outlet module and hydrogen gas docking module are connected, realize the connection of hydrogen gas pipeline, this system can quickly replace main frame, substantially shorten the energy supplement time, effectively reduce the comprehensive cost of whole vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle-mounted hydrogen supply systems, and more specifically, relates to a hydrogen swapping type vehicle-mounted hydrogen supply system. Background Technology

[0002] Driven by the global goal of carbon neutrality, hydrogen-powered heavy-duty trucks, with their advantages of zero emissions and long-range heavy-duty operation, have become a core direction for the zero-carbon transformation of commercial vehicles. The National Medium and Long-Term Plan for the Development of the Hydrogen Energy Industry (2021-2035) explicitly lists it as a priority demonstration area. Currently, hydrogen-powered heavy-duty trucks have been piloted on a large scale in scenarios such as port logistics, but they face two major bottlenecks: First, there is a shortage of hydrogen refueling infrastructure. The distribution of hydrogen refueling stations across the country is concentrated and the growth rate is slowing down, making it difficult to support cross-regional logistics needs. Second, the efficiency of refueling is limited. Although the traditional hydrogen refueling mode is better than charging electric heavy-duty trucks, it is still limited by the distribution of hydrogen refueling stations. Although there have been breakthroughs in technologies such as high-pressure gaseous hydrogen storage and liquid hydrogen storage and transportation, the problem of adapting to scenarios for rapid refueling has not been solved.

[0003] Existing hydrogen supply systems are mostly fixed and integrated, lacking modular designs that allow for quick replacement. While swappable hydrogen supply solutions, similar to battery swapping, have shown initial success in the fuel cell vehicle sector, they are not yet suitable for the heavy-duty, long-range, and frequent refueling requirements of hydrogen-powered heavy-duty trucks. Current hydrogen supply systems for heavy-duty trucks are mostly fixed installation structures that cannot be quickly replaced, resulting in longer refueling times and higher overall vehicle costs. Utility Model Content

[0004] The main purpose of this invention is to provide a hydrogen-swapping on-board hydrogen supply system that can significantly shorten refueling time and effectively reduce the overall cost of the vehicle.

[0005] According to a first aspect of the present invention, a hydrogen swapping on-board hydrogen supply system is provided, comprising:

[0006] Main framework;

[0007] A hydrogen swapping base frame is fixed on the vehicle chassis. The hydrogen swapping base frame is detachably installed at the bottom of the main frame. The hydrogen swapping base frame is provided with multiple system quick-installation mechanisms. The main frame and the hydrogen swapping base frame are detachably connected through the system quick-installation mechanisms.

[0008] A hydrogen outlet module is fixedly installed below the main frame and on the hydrogen exchange bottom frame.

[0009] A hydrogen connection module is installed on the hydrogen exchange base frame, and the hydrogen outlet module is connected to the hydrogen connection module to realize the hydrogen pipeline connection.

[0010] According to the first aspect embodiment of the present invention, the hydrogen swapping vehicle-mounted hydrogen supply system includes a quick installation mechanism comprising a main frame positioning pin, an installation guide column, a rotary clamping device, and a frame fixing block. The rotary clamping device is fixedly installed on one side of the installation guide column, and the output end of the rotary clamping device is rotatably connected to the frame fixing block. The main frame positioning pin and the installation guide column are both located on the inner edge of the hydrogen swapping bottom frame, and one side of the installation guide column is fitted and connected to the bottom inner side of the main frame.

[0011] According to the hydrogen swapping vehicle-mounted hydrogen supply system of the first aspect of this utility model, the bottom of the main frame is provided with a limiting hole that cooperates with the positioning pin of the main frame.

[0012] According to the hydrogen swapping vehicle-mounted hydrogen supply system of the first aspect of the present invention, the hydrogen outlet module includes a second fixing plate, a docking plate and a lower plate. The second fixing plate and the docking plate are connected by a first compression spring. A first limiting bolt is provided on the docking plate. The first compression spring is sleeved on the outside of the first limiting bolt. The docking plate and the lower plate are fixedly connected by a limiting column.

[0013] According to the hydrogen swapping vehicle-mounted hydrogen supply system of the first aspect of this utility model, the docking plate is provided with a partition straight connector, the partition straight connector is connected to a hydrogen outlet pipe, the second fixing plate is provided with a reserved hole, the lower plate is provided with a through hole, one end of the hydrogen outlet pipe can pass through the through hole, the other end of the hydrogen outlet pipe can pass through the reserved hole, and the hydrogen outlet pipe is connected to the hydrogen docking module to realize the hydrogen pipeline connection.

[0014] According to the hydrogen swapping vehicle-mounted hydrogen supply system of the first aspect of this utility model, the hydrogen docking module includes an upper plate and a first fixed plate. The upper plate and the first fixed plate are connected by a second compression spring. A second limiting bolt is provided on the upper plate. The second compression spring is sleeved on the outside of the second limiting bolt. A battery valve mounting block is fixedly installed between the upper plate and the first fixed plate. A battery valve is fixedly installed on the battery valve mounting block.

[0015] According to the hydrogen swapping vehicle-mounted hydrogen supply system of the first aspect of this utility model, the upper plate is provided with a hydrogen quick-connect interface, one end of the hydrogen quick-connect interface is connected to the battery valve, and the other end of the hydrogen quick-connect interface is connected to the hydrogen outlet module.

[0016] According to the hydrogen swapping vehicle-mounted hydrogen supply system of the first aspect of the present invention, the upper plate is further provided with a guide positioning pin, and the hydrogen outlet module is provided with an oil-free sleeve that cooperates with the guide positioning pin.

[0017] According to the hydrogen swapping vehicle-mounted hydrogen supply system of the first aspect of the present invention, a module fixing plate is fixedly connected to the bottom of the first fixing plate, and the hydrogen docking module is fixedly connected to the hydrogen swapping bottom frame through the module fixing plate.

[0018] According to the first aspect embodiment of the present invention, the hydrogen swapping vehicle-mounted hydrogen supply system has six quick-installation mechanisms, which are evenly distributed on both sides of the hydrogen swapping base frame.

[0019] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0020] This invention fixes the hydrogen exchange base frame to the vehicle chassis and connects it to the main frame via a quick-installation mechanism. The hydrogen outlet module and hydrogen docking module on the hydrogen exchange base frame are connected to the hydrogen pipeline. This system allows for quick replacement of the main frame, significantly shortens refueling time, and effectively reduces the overall cost of the vehicle. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is a schematic diagram of the structure of the hydrogen swapping on-board hydrogen supply system in the first embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the system's quick installation mechanism and hydrogen exchange base frame in the first embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the hydrogen outlet module in the first embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the hydrogen docking module in the first embodiment of this utility model;

[0026] Figure 5 This is a side view of the hydrogen swapping vehicle-mounted hydrogen supply system in the first embodiment of this utility model. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] Furthermore, the terms "first" and "second" 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" and "second" may explicitly or implicitly include one or more features.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0032] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0033] Reference Figures 1 to 5 As shown, a hydrogen swapping on-board hydrogen supply system is provided, comprising:

[0034] Main framework 1;

[0035] The hydrogen swapping base frame 3 is fixed on the vehicle chassis. The hydrogen swapping base frame 3 is detachably set at the bottom of the main frame 1. The hydrogen swapping base frame 3 is equipped with multiple system quick installation mechanisms 31. The main frame 1 and the hydrogen swapping base frame 3 are detachably connected through the system quick installation mechanisms 31.

[0036] Hydrogen outlet module 2 is fixedly installed below the main frame 1 and on the hydrogen exchange bottom frame 3.

[0037] The hydrogen connection module 32 is installed on the hydrogen exchange base frame 3. The hydrogen outlet module 2 is connected to the hydrogen connection module 32 to realize the hydrogen pipeline connection.

[0038] In some embodiments of this utility model, the system quick installation mechanism 31 includes a main frame positioning pin 311, an installation guide column 312, a rotary clamping device 313, and a frame fixing block 314. The rotary clamping device 313 is fixedly installed on one side of the installation guide column 312, and its output end is rotatably connected to the frame fixing block 314. Both the main frame positioning pin 311 and the installation guide column 312 are located on the inner edge of the hydrogen exchange base frame 3, and one side of the installation guide column 312 is fitted and connected to the inner bottom of the main frame 1. The rotary clamping device 313 is preferably a rotary clamping cylinder, but it can also be other driving components, such as a motor. The output end of the rotary clamping device 313 drives the frame fixing block 314 to rotate, thereby causing the frame fixing block 314 to lock and fix the main frame 1. The outer side of the installation guide column 312 is a certain distance away from the outer side of the hydrogen exchange base frame 3, which allows the main frame 1 to be placed on the hydrogen exchange base frame 3. The installation guide column 312 guides the main frame 1 to fall correctly.

[0039] Furthermore, the bottom of the main frame 1 is provided with a limiting hole that cooperates with the main frame positioning pin 311, which is used to position the main frame 1.

[0040] In some embodiments of this utility model, the hydrogen outlet module 2 includes a second fixing plate 21, a docking plate 25, and a lower plate 27. The second fixing plate 21 and the docking plate 25 are connected by a first compression spring 22. A first limiting bolt 26 is provided on the docking plate 25, and the first compression spring 22 is sleeved on the outside of the first limiting bolt 26. The docking plate 25 and the lower plate 27 are fixedly connected by a limiting post 24. The first limiting bolt 26 is used to fix the position of the first compression spring 22; the hydrogen outlet module 2 does not extend beyond the lower edge of the main frame 1.

[0041] Furthermore, the docking plate 25 is provided with a partition straight connector 28, which is connected to a hydrogen outlet pipe 29. The second fixing plate 21 has a reserved hole 20, and the lower plate 27 has a through hole 200. One end of the hydrogen outlet pipe 29 can pass through the through hole 200, and the other end can pass through the reserved hole 20. The hydrogen outlet pipe 29 is connected to the hydrogen docking module 32 to achieve hydrogen pipe connection. The hydrogen outlet pipe 29 is used to connect to the hydrogen quick interface 325; the reserved hole 20 is used so that when the first compression spring 22 is compressed, one end of the partition straight connector 28 will protrude through the reserved hole 20 to avoid interference between the second fixing plate 21 and the partition straight connector 28; the through hole 200 is used to connect the hydrogen outlet pipe 29 to the hydrogen quick interface 325.

[0042] Preferably, the hydrogen outlet pipe 29 is manufactured according to SAE J2044 specifications and can be used with the hydrogen quick connector 325.

[0043] In some embodiments of this utility model, the hydrogen docking module 32 includes an upper plate 324 and a first fixing plate 326. The upper plate 324 and the first fixing plate 326 are connected by a second compression spring 329. A second limiting bolt 322 is provided on the upper plate 324, and the second compression spring 329 is sleeved on the outside of the second limiting bolt 322. A battery valve mounting block 328 is fixedly installed between the upper plate 324 and the first fixing plate 326, and a battery valve 323 is fixedly installed on the battery valve mounting block 328. A certain distance is provided between the bottom of the battery valve 323 and the first fixing plate 326 to avoid interference between the battery valve 323 and the first fixing plate 326 when the second compression spring 329 is compressed; the second limiting bolt 322 is used to fix the position of the second compression spring 329.

[0044] Furthermore, the upper plate 324 is provided with a hydrogen quick-connect interface 325. One end of the hydrogen quick-connect interface 325 is connected to the battery valve 323, and the other end of the hydrogen quick-connect interface 325 is connected to the hydrogen outlet module 2. The hydrogen quick-connect interface 325 is connected to the hydrogen outlet pipeline 29 of the hydrogen outlet module 2.

[0045] Furthermore, the upper plate 324 is also provided with a guide positioning pin 321, and the hydrogen outlet module 2 is provided with an oil-free sleeve 24 that cooperates with the guide positioning pin 321. The guide positioning pin 321 is inserted into the oil-free sleeve 24, thereby fixing the hydrogen outlet module 2 and the hydrogen docking module 32 together, so as to facilitate the connection of the hydrogen quick interface 325 with the hydrogen outlet pipeline 29 of the hydrogen outlet module 2. The hydrogen docking module 32 is located below the hydrogen outlet module 2.

[0046] Furthermore, a module fixing plate 327 is fixedly connected to the bottom of the first fixing plate 326, and the hydrogen docking module 32 is fixedly connected to the hydrogen exchange bottom frame 3 through the module fixing plate 327.

[0047] In some embodiments of this utility model, the number of quick installation mechanisms 31 is 6, and they are evenly distributed on both sides of the hydrogen exchange base frame 3.

[0048] In this embodiment, during the installation of the hydrogen supply system, as the hoisting mechanism lowers the main frame 1, the main frame 1 will fall correctly under the guidance and restraint of the installation guide column 312, and then cooperate with the main frame positioning pin 311 to achieve precise positioning. During the descent, the hydrogen outlet module 2 and the hydrogen docking module 32 gradually dock with the cooperation of the guide positioning pin 321 and the oil-free bushing 24. The second compression spring 329 has higher rigidity than the first compression spring 22, so during the docking process, the first compression spring 22 is compressed first, causing the hydrogen outlet module 2 to be in a certain floating state, which facilitates the connection of the hydrogen outlet pipeline 29 to the hydrogen quick interface 325. The lower outlet of the solenoid valve 323 is then connected to the hydrogen inlet of the fuel cell. When the entire hydrogen supply system is in place, the second compression spring 329 is also fully compressed. At this time, the rotating clamping device 313 works, rotating and pressing down the frame fixing block 314 to fix the main frame 1, thereby completing the replacement of the entire hydrogen supply system.

[0049] When the hydrogen supply system needs to be disassembled and replaced, the rotating clamping device 313 is activated, lifting the frame fixing block 314 and rotating it to ensure that no collision occurs during the replacement of the main frame 1. The hydrogen pipeline can be directly disconnected as the main frame 1 is lifted, without the need for manual operation.

[0050] The above is a further detailed description of this utility model and should not be considered as a limitation on the specific implementation of this utility model. For those skilled in the art, simple deductions or substitutions without departing from the concept of this utility model are all within the protection scope of this utility model.

Claims

1. A hydrogen-swapping on-board hydrogen supply system, characterized in that, include: Main framework (1); The hydrogen exchange base frame (3) is fixed on the vehicle chassis. The hydrogen exchange base frame (3) is detachably installed at the bottom of the main frame (1). The hydrogen exchange base frame (3) is provided with multiple system quick installation mechanisms (31). The main frame (1) and the hydrogen exchange base frame (3) are detachably connected through the system quick installation mechanisms (31). Hydrogen outlet module (2), which is fixedly installed below the main frame (1) and on the hydrogen exchange bottom frame (3); Hydrogen docking module (32) is installed on the hydrogen exchange base frame (3). The hydrogen outlet module (2) is connected to the hydrogen docking module (32) to realize the hydrogen pipeline connection.

2. The hydrogen swapping on-board hydrogen supply system according to claim 1, characterized in that, The system quick installation mechanism (31) includes a main frame positioning pin (311), an installation guide column (312), a rotary clamping device (313), and a frame fixing block (314). The rotary clamping device (313) is fixedly installed on one side of the installation guide column (312). The output end of the rotary clamping device (313) is rotatably connected to the frame fixing block (314). The main frame positioning pin (311) and the installation guide column (312) are both located on the inner edge of the hydrogen exchange bottom frame (3). One side of the installation guide column (312) is attached to the inner bottom of the main frame (1).

3. The hydrogen swapping on-board hydrogen supply system according to claim 2, characterized in that, The bottom of the main frame (1) is provided with a limiting hole that cooperates with the positioning pin (311) of the main frame.

4. The hydrogen swapping on-board hydrogen supply system according to claim 1, characterized in that, The hydrogen outlet module (2) includes a second fixing plate (21), a docking plate (25) and a lower plate (27). The second fixing plate (21) and the docking plate (25) are connected by a first compression spring (22). A first limiting bolt (26) is provided on the docking plate (25). The first compression spring (22) is sleeved on the outside of the first limiting bolt (26). The docking plate (25) and the lower plate (27) are fixedly connected by a limiting column (23).

5. The hydrogen swapping on-board hydrogen supply system according to claim 4, characterized in that, The docking plate (25) is provided with a partition straight connector (28), which is connected to a hydrogen outlet pipe (29). The second fixing plate (21) is provided with a reserved hole (20), and the lower plate (27) is provided with a through hole (200). One end of the hydrogen outlet pipe (29) can pass through the through hole (200), and the other end of the hydrogen outlet pipe (29) can pass through the reserved hole (20). The hydrogen outlet pipe (29) is connected to the hydrogen docking module (32) to realize the hydrogen pipe connection.

6. The hydrogen swapping on-board hydrogen supply system according to claim 1, characterized in that, The hydrogen docking module (32) includes an upper plate (324) and a first fixing plate (326). The upper plate (324) and the first fixing plate (326) are connected by a second compression spring (329). A second limiting bolt (322) is provided on the upper plate (324). The second compression spring (329) is sleeved on the outside of the second limiting bolt (322). A battery valve mounting block (328) is fixedly installed between the upper plate (324) and the first fixing plate (326). A battery valve (323) is fixedly installed on the battery valve mounting block (328).

7. The hydrogen swapping on-board hydrogen supply system according to claim 6, characterized in that, The upper plate (324) is provided with a hydrogen quick-connect interface (325). One end of the hydrogen quick-connect interface (325) is connected to the battery valve (323), and the other end of the hydrogen quick-connect interface (325) is connected to the hydrogen outlet module (2).

8. The hydrogen swapping on-board hydrogen supply system according to claim 6, characterized in that, The upper plate (324) is also provided with a guide positioning pin (321), and the hydrogen outlet module (2) is provided with an oil-free sleeve (24) that cooperates with the guide positioning pin (321).

9. The hydrogen swapping on-board hydrogen supply system according to claim 6, characterized in that, The bottom of the first fixing plate (326) is fixedly connected to a module fixing plate (327), and the hydrogen docking module (32) is fixedly connected to the hydrogen exchange bottom frame (3) through the module fixing plate (327).

10. The hydrogen swapping on-board hydrogen supply system according to claim 1, characterized in that, The system has six quick-installation mechanisms (31), which are evenly distributed on both sides of the hydrogen exchange base frame (3).

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