Hydrogen energy power generation system and vehicle with same

Abstract

The utility model belongs to the technical field of hydrogen fuel cells, and particularly relates to a hydrogen energy power generation system and a vehicle with the same. The hydrogen energy power generation system comprises a box body, wherein a partition plate is arranged in the box body; the partition plate divides the interior of the box body into a first containing cavity and a second containing cavity. The DC step-up device, the DC step-down device and the battery module are arranged in the first accommodating cavity; and the hydrogen conveying assembly and the fuel cell assembly are arranged in the second accommodating cavity. According to the hydrogen energy power generation system, the assembly integration level is improved, and the DC boosting device, the DC step-down device, the battery module, the hydrogen conveying assembly, the fuel cell assembly and the like are all integrated in the box body; besides, the internal space of the box body is divided into two parts through the partition plate, and the hydrogen conveying assembly and the fuel cell assembly are separated from the DC boosting device and the DC voltage reduction device, so that the DC boosting device and the DC voltage reduction device are not affected by heat energy utilization of the hydrogen conveying assembly and the fuel cell assembly, and heat can be dissipated independently.

Description

Technical Field

[0001] This utility model belongs to the field of hydrogen fuel cell technology, specifically relating to a hydrogen power generation system and a vehicle having the same. Background Technology

[0002] Currently, the main types of electric vehicle batteries on the market are lead-acid batteries and lithium-ion batteries. Both have problems such as slow charging, difficulty in charging, and lifespan degradation. In addition, lithium-ion batteries have certain safety hazards and high replacement costs. Furthermore, the pollution caused by lead-acid and lithium batteries in the early and later stages is also a long-term environmental problem.

[0003] Hydrogen energy is a clean energy source for the 21st century, and one important application area is "hydrogen-electricity." Hydrogen storage methods include high-pressure gaseous, cryogenic liquid, organic liquid, and metallic (non-metallic) solid states, each corresponding to its specific application area. Using hydrogen fuel cells for power generation, compared to batteries, is not only pollution-free and has high energy density, but also allows for rapid start-up in low-temperature environments.

[0004] While existing technologies have achieved the integration of solid-state hydrogen storage tank assemblies and fuel cell stack assemblies within a package, some other components cannot be integrated and rely on the vehicle frame's support structure for mounting. This is because electric vehicles, especially electric bicycles (minivans and electric scooters), have limited space. For example, the boost and buck modules are located on opposite sides of the package's width and are fixedly connected to the outer surface of the package via first and second brackets. Therefore, the integration level of existing hydrogen power generation systems is not yet high enough to be suitable for different types of vehicles. Utility Model Content

[0005] The purpose of this invention is to provide a hydrogen power generation system and a vehicle having the same, in order to solve the aforementioned technical problems.

[0006] This application provides a hydrogen power generation system. The hydrogen power generation system includes:

[0007] The box has an internal partition that divides the interior into a first receiving cavity and a second receiving cavity.

[0008] A DC boost converter, a DC buck converter, and a battery module are disposed within a first receiving cavity; and

[0009] The hydrogen delivery assembly and the fuel cell assembly are housed within the second receiving cavity.

[0010] In one embodiment of this application, the hydrogen delivery assembly includes: a plurality of hydrogen storage cylinders, a pressure sensor, and a first solenoid valve;

[0011] A pressure reducing valve is installed at the mouth of the hydrogen storage cylinder;

[0012] The hydrogen in the hydrogen storage cylinder is sequentially delivered to the fuel cell assembly via a pressure reducing valve, a pressure sensor, and a first solenoid valve.

[0013] In one embodiment of this application, the fuel cell assembly includes:

[0014] A fuel cell stack; the hydrogen storage tank is located at the rear of the second receiving cavity, and the fuel cell stack is located at the front of the hydrogen storage tank; and

[0015] The fan assembly is located between the fuel cell stack and the hydrogen storage tank.

[0016] In one embodiment of this application, the bottom of the fuel cell stack is provided with a fuel cell stack hydrogen inlet and a fuel cell stack hydrogen outlet;

[0017] The first solenoid valve is connected to the hydrogen inlet of the fuel cell stack;

[0018] The hydrogen outlet of the fuel cell stack is connected to a second solenoid valve.

[0019] In one embodiment of this application, the first solenoid valve is disposed on one side of the fan assembly;

[0020] The second solenoid valve is located on the lower side of the fuel cell stack;

[0021] The pressure sensor is located on the upper side of the fan assembly.

[0022] In one embodiment of this application, the battery module is disposed at the front of the first receiving cavity;

[0023] The DC boost device is located on the upper side of the rear of the first receiving cavity;

[0024] The DC buck converter is located below the DC boost converter.

[0025] In one embodiment of this application, a battery protection plate is provided on the front side of the battery module.

[0026] In one embodiment of this application, a current sensor is provided on the upper side of the battery module;

[0027] A relay connected to a current sensor is provided on the rear side of the battery module.

[0028] The output terminal of the fuel cell stack is electrically connected to a current sensor.

[0029] In one embodiment of this application, a control motherboard is provided on the upper side of the fuel cell stack.

[0030] Accordingly, this application provides a vehicle, including:

[0031] Seat cushion;

[0032] The cockpit is located under the seat cushion and is equipped with the hydrogen power generation system described above.

[0033] The beneficial effects of this utility model are:

[0034] Unlike existing technologies, this application provides a hydrogen power generation system. The system includes: a housing with an internal partition dividing the housing into a first and a second receiving cavity; a DC boost converter, a DC buck converter, and a battery module, disposed in the first receiving cavity; and a hydrogen delivery assembly and a fuel cell assembly, disposed in the second receiving cavity. This invention improves the integration of the assembly, integrating the DC boost converter, DC buck converter, battery module, hydrogen delivery assembly, and fuel cell assembly into the housing. Furthermore, by dividing the internal space of the housing into two parts through the partition, the hydrogen delivery assembly and fuel cell assembly are separated from the DC boost converter and DC buck converter, allowing the DC boost converter and DC buck converter to dissipate heat independently, unaffected by the thermal energy utilization of the hydrogen delivery assembly and fuel cell assembly.

[0035] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a top view of a preferred embodiment of the hydrogen power generation system of this utility model;

[0039] Figure 2 and Figure 3 This is a perspective view of a hydrogen power generation system according to a preferred embodiment of the present invention;

[0040] Figure 4 and Figure 5This is a cross-sectional view of a hydrogen power generation system according to a preferred embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the assembly of a vehicle seat cushion and cabin according to a preferred embodiment of the present invention.

[0042] In the picture:

[0043] 1. Housing; 101. First receiving cavity; 102. Second receiving cavity; 1021. Air inlet; 1022. Air outlet; 1023. Mounting hole; 11. Partition; 2. DC boost device; 21. Heat dissipation device; 3. DC buck device; 4. Battery module; 41. Battery protection board; 42. Current sensor; 43 and 44. Relays; 5. Hydrogen delivery assembly; 51. Hydrogen storage tank; 52. Pressure sensor; 53. First solenoid valve; 54. Pressure reducing valve; 6. Fuel cell assembly; 61. Stack; 611. Hydrogen inlet of stack; 612. Hydrogen outlet of stack; 62. Fan assembly; 63. Second solenoid valve; 7. Control main board.

[0044] Seat cushion 100, cabin 200, hydrogen power generation system 300. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0046] This application provides a hydrogen power generation system and a vehicle, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0047] See Figures 1 to 4 In one embodiment, the hydrogen power generation system includes: a housing 1, which has a partition 11 inside; the partition 11 divides the housing 1 into a first receiving cavity 101 and a second receiving cavity 102; a DC boost device 2, a DC buck device 3 and a battery module 4, which are disposed in the first receiving cavity 101; and a hydrogen delivery assembly 5 and a fuel cell assembly 6, which are disposed in the second receiving cavity 102.

[0048] In this embodiment, the hydrogen power generation system improves the integration of its assembly, integrating the DC boost converter 2, DC buck converter 3, battery module 4, hydrogen delivery assembly 5, and fuel cell assembly 6 all within the housing 1, facilitating overall installation on the vehicle. Furthermore, the modular assembly allows the hydrogen power generation system to adapt to different types of vehicles. For example, it is widely applicable and highly adaptable to various types of equipment such as two-wheeled vehicles, three-wheeled vehicles, golf carts, and vending machines.

[0049] In addition, the internal space of the box is divided into two parts by the partition 11, separating the hydrogen delivery assembly 5, the fuel cell assembly 6 from the DC boost device 2 and the DC buck device 3, so that the DC boost device 2 and the DC buck device 3 can dissipate heat independently without being affected by the thermal energy utilization of the hydrogen delivery assembly 5 and the fuel cell assembly 6.

[0050] join Figure 5 As an optional embodiment of the hydrogen delivery assembly 5, the hydrogen delivery assembly 5 includes: a plurality of hydrogen storage cylinders 51, a pressure sensor 52 and a first solenoid valve 53; a pressure reducing valve 54 is provided at the mouth of the hydrogen storage cylinder 51; the hydrogen in the hydrogen storage cylinder 51 is sequentially delivered to the fuel cell assembly 6 through the pressure reducing valve 54, the pressure sensor 52 and the first solenoid valve 53.

[0051] Specifically, in one embodiment, a pressure reducing valve 54 is provided at the mouth of the hydrogen storage cylinder 51. The hydrogen output from the two hydrogen storage cylinders 51 passes through a three-way valve (not shown in the figure) and converges into one channel, which is connected to one end of the pressure sensor 52. After exiting from the other end of the pressure sensor 52, it is connected to one end of the first solenoid valve 53, and then exits from the other end of the first solenoid valve 53 and connects to the fuel cell assembly 6. Optionally, the various components can be connected through a hydrogen delivery pipe (not shown in the figure).

[0052] See Figure 5 Optionally, the fuel cell assembly 6 includes: a stack 61; a hydrogen storage tank 51 located at the rear of the second receiving cavity 102, with the stack 61 located at the front of the hydrogen storage tank 51; and a fan assembly 62 disposed between the stack 61 and the hydrogen storage tank 51.

[0053] In this embodiment, a fuel cell stack 61 is located in front of the hydrogen storage tank 51, and a fan assembly 62 is located between the fuel cell stack 61 and the hydrogen storage tank 51. The fan assembly 62 serves two purposes: firstly, it draws outside air into the airflow channel of the fuel cell stack 61 to induce a reduction reaction in oxygen; secondly, it conducts the hot air generated by the fuel cell stack 61 during operation to the hydrogen storage tank 51. Since the hydrogen storage tank 51 absorbs heat when releasing hydrogen, a drop in temperature inside the tank would reduce its hydrogen release efficiency. Therefore, conducting the hot air generated by the fuel cell stack 61 to the hydrogen storage tank 51 via the fan assembly 62 improves the hydrogen release efficiency and achieves waste heat utilization. Furthermore, by providing a partition 11, the aforementioned preheating process does not affect the heat dissipation of the DC boost converter 2.

[0054] Optional, see Figure 2 and Figure 3 The front wall of the second receiving cavity 102 may be provided with an air inlet 1021, and the rear wall may be provided with an air outlet 1022. The air inlet 1021 may be surrounded by mounting holes 1023 for mounting the fuel cell stack 61.

[0055] Optionally, a heating device (with a built-in heating wire) and a temperature detection device (not shown in the figure) can be installed around the body of the hydrogen storage cylinder 51. When the hydrogen storage cylinder releases hydrogen, the temperature detection device detects the temperature of the cylinder body. When the temperature of the cylinder body is lower than the preset temperature, the heating device is activated to heat the cylinder body and the temperature of the cylinder body is controlled in real time within the specified range.

[0056] See Figure 5 Optionally, the bottom of the fuel cell stack 61 is provided with a fuel cell stack hydrogen inlet 611 and a fuel cell stack hydrogen outlet 612; the first solenoid valve 53 is connected to the fuel cell stack hydrogen inlet 611; and the fuel cell stack hydrogen outlet 612 is connected to a second solenoid valve 63.

[0057] Specifically, the hydrogen released from the hydrogen storage cylinder 51 enters the hydrogen inlet 611 of the fuel cell stack through the first solenoid valve 53. The fuel cell stack consumes hydrogen to generate current. At the same time, a small amount of unconsumed hydrogen and water needs to be discharged from the fuel cell stack hydrogen outlet 612 through a pipeline to the outside of this hydrogen power generation system. The fuel cell stack hydrogen outlet 612 first passes through the second solenoid valve 63 at the bottom, and then is discharged to the outside through a pipeline (the pipeline is not shown in the figure).

[0058] As a preferred arrangement, the first solenoid valve 53 is disposed on one side of the fan assembly 62; the second solenoid valve 63 is disposed on the lower side of the fuel cell stack 61; and the pressure sensor 52 is disposed on the upper side of the fan assembly 62.

[0059] See Figure 4Preferably, the battery module 4 is disposed at the front of the first receiving cavity 101; the DC boost device 2 is disposed on the upper side of the rear of the first receiving cavity 101; and the DC buck device 3 is disposed below the DC boost device 2.

[0060] Furthermore, a battery protection plate 41 is provided on the front side of the battery module 4.

[0061] See Figure 2 Optionally, a heat dissipation device 21 may be provided on the outside of the DC boost converter 2. Optionally, the heat dissipation device 21 may be a heat sink and / or a cooling fan provided on the outside of the DC boost converter 2.

[0062] Furthermore, a current sensor 42 is provided on the upper side of the battery module 4; relays 43 and 44 connected to the current sensor 42 are provided on the rear side of the battery module 4; and the output terminal 613 of the battery stack 61 is electrically connected to the current sensor 42.

[0063] Optionally, a control motherboard 7 is provided on the upper side of the fuel cell stack 61.

[0064] In some application scenarios, a current output terminal 613 is provided on the top of the fuel cell stack 61. The wires leading out from the current output terminal 613 are first connected to the current sensor 42. The wires leading out from the current sensor 42 are connected to two relays 43 and 44 respectively. The two relays are used to control the on / off state of the positive and negative terminals. Relay 43 is connected to the DC boost converter 2. The DC boost converter 2 has three outputs. The first output is directly output to the outside to power external electrical equipment (such as motors, lighting, etc.). The second output is connected to the battery module 4 to power the fuel cell, control board, etc. during startup. The third output is connected to the DC buck converter 3, which is connected to the control board, solenoid valves, and a series of other internal electrical devices of the hydrogen power generation system to provide power during normal system operation.

[0065] Optionally, when the hydrogen power generation system is installed on different types of terminal equipment (vending machines, agricultural machinery, hydrogen-powered two-wheelers, hydrogen-powered drones, etc.), several different external power supply modes are available. First, battery module 4 can serve solely as a starting battery, powering the internal devices during startup. Second, battery module 4 can also be used in a mixed power supply configuration with the current sensor-relay-DC booster circuit, where the stack-current sensor-relay-DC booster circuit is the primary mode, and the battery module circuit is secondary, simultaneously powering external electrical equipment.

[0066] Furthermore, when the battery module 4 has sufficient power, the DC boost device 2 can output power directly to external devices without supplying power to the battery module 4. A current sensor is used to detect whether the current level is normal. In addition, the battery module 4 can also store electrical energy, which can be used to power external devices when needed. The battery module 4 serves as a startup battery, powering all internal devices during startup.

[0067] Based on the above embodiments, one embodiment of this application also provides a vehicle, including: a seat cushion 100; a cabin 200 disposed below the seat cushion 100, and having a hydrogen power generation system 300 as described above disposed inside it.

[0068] In this embodiment, optionally, the upper opening of the cabin 200 allows the housing 1 of the hydrogen power generation system 300 to be inserted into the cabin 200.

[0069] In summary, the hydrogen power generation system of this utility model has the following technical effects:

[0070] 1. It can properly arrange the hydrogen power module supply source in a small and limited space;

[0071] 2. Waste heat utilization of fuel cells has been achieved, providing sufficient and uniform heat to the solid hydrogen storage cylinder;

[0072] 3. High degree of internal structural integration, compact structure, and high waste heat utilization rate;

[0073] 4. The battery module can serve as a starting battery or provide auxiliary power when needed. The DC boost converter and lithium battery can switch between different output modes according to actual conditions and the compatible electrical equipment, exhibiting strong adaptability. The entire device can be installed on various hydrogen-powered vehicles, such as golf carts, vending machines, and other types of equipment, demonstrating wide applicability and strong adaptability.

[0074] 5. The fuel cell system module has a stack cooling fan at the rear of the stack. This fan can draw in outside air into the stack's airflow channel to supply oxygen for the reduction reaction, and can also conduct the hot air generated during stack operation to the hydrogen storage tank, thereby improving the hydrogen release efficiency of the hydrogen storage device.

[0075] 6. This hydrogen fuel cell system can be installed under the seat of a hydrogen-powered two-wheeled vehicle, facilitating future maintenance.

[0076] It should be noted that all the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0077] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0078] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0079] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification.

Claims

1. A hydrogen power generation system, characterized in that, include: The box (1) has a partition (11) inside; the partition (11) divides the box (1) into a first receiving cavity (101) and a second receiving cavity (102); The DC boost converter (2), the DC buck converter (3), and the battery module (4) are disposed within the first receiving cavity (101); and The hydrogen delivery assembly (5) and the fuel cell assembly (6) are disposed within the second receiving cavity (102).

2. The hydrogen power generation system according to claim 1, characterized in that, The hydrogen delivery assembly (5) includes: a plurality of hydrogen storage cylinders (51), a pressure sensor (52), and a first solenoid valve (53); A pressure reducing valve (54) is provided at the mouth of the hydrogen storage cylinder (51); The hydrogen in the hydrogen storage cylinder (51) is sequentially delivered to the fuel cell assembly (6) via the pressure reducing valve (54), pressure sensor (52) and first solenoid valve (53).

3. The hydrogen power generation system according to claim 2, characterized in that, The fuel cell assembly (6) includes: The fuel cell stack (61); the hydrogen storage tank (51) is located at the rear of the second receiving cavity (102), and the fuel cell stack (61) is located at the front of the hydrogen storage tank (51); and A fan assembly (62) is disposed between the fuel cell stack (61) and the hydrogen storage tank (51).

4. The hydrogen power generation system according to claim 3, characterized in that, The bottom of the fuel cell stack (61) is provided with a fuel cell hydrogen inlet (611) and a fuel cell hydrogen outlet (612); The first solenoid valve (53) is connected to the hydrogen inlet (611) of the fuel cell stack; The hydrogen outlet (612) of the fuel cell stack is connected to a second solenoid valve (63).

5. The hydrogen power generation system according to claim 4, characterized in that, The first solenoid valve (53) is located on one side of the fan assembly (62); The second solenoid valve (63) is located on the lower side of the fuel cell stack (61); The pressure sensor (52) is located on the upper side of the fan assembly (62).

6. The hydrogen power generation system according to claim 3, characterized in that, The battery module (4) is disposed at the front of the first receiving cavity (101); The DC boost device (2) is located on the upper side of the rear part of the first receiving cavity (101); The DC step-down device (3) is located below the DC step-up device (2).

7. The hydrogen power generation system according to claim 6, characterized in that, A battery protection plate (41) is provided on the front side of the battery module (4).

8. The hydrogen power generation system according to claim 6, characterized in that, A current sensor (42) is provided on the upper side of the battery module (4); A relay connected to a current sensor (42) is provided on the rear side of the battery module (4); The output terminal (613) of the fuel cell stack (61) is electrically connected to the current sensor (42).

9. The hydrogen power generation system according to claim 3, characterized in that, A control board (7) is provided on the upper side of the fuel cell stack (61).

10. A vehicle, characterized in that, include: Seat cushion (100); A cockpit (200) is disposed below the seat cushion (100) and is provided with a hydrogen power generation system (300) as described in any one of claims 1-9.

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