65kW fuel cell engine structure

Abstract

The utility model discloses a 65kW fuel cell engine structure which comprises a galvanic pile, a cooling sub-assembly arranged at the bottom of the galvanic pile, a hydrogen sub-assembly arranged on one side of the galvanic pile, an air sub-assembly arranged on one side of the galvanic pile and a control assembly arranged on one side of the galvanic pile, the bottom of the electric pile is fixedly connected with a connecting plate, the top of the electric pile is fixedly provided with a DCDC, the hydrogen sub-assembly is located on one side of the electric pile, and the hydrogen sub-assembly comprises a hydrogen ejector assembly, a hydrogen in-pile assembly and a hydrogen outlet steam-water separator; by canceling a hydrogen circulating pump and an air humidifier, the framework of the fuel cell engine system is remarkably simplified, the complexity of the system is reduced, the manufacturing cost is reduced, and meanwhile, the later maintenance cost and maintenance difficulty are also reduced; the design without the hydrogen circulating pump means that the system does not need extra power to drive hydrogen circulation, so that the energy utilization efficiency of the whole system is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery engines, in particular to a 65kW fuel cell engine structure. Background Art

[0002] As the world's awareness of clean energy and environmental protection deepens, hydrogen energy, due to its clean, efficient, and renewable properties, is gradually becoming a highly anticipated new energy source. Among the diverse applications of hydrogen energy, fuel cell engines undoubtedly hold the greatest potential. Their robust performance and efficiency are directly related to the overall performance and practical effects of hydrogen energy.

[0003] Traditional fuel cell engine designs often rely on core components such as a hydrogen circulation pump and an air humidifier to ensure their operation. The hydrogen circulation pump plays a role in recycling unreacted hydrogen, aiming to improve hydrogen utilization efficiency; while the air humidifier is responsible for regulating the humidity of the air entering the fuel cell stack, thereby improving the overall performance of the fuel cell.

[0004] However, the integration of the hydrogen circulation pump and air humidifier inevitably brings problems. The hydrogen circulation pump increases the complexity of the system and increases the subsequent maintenance costs; and the air humidifier may affect the stability and performance of the fuel cell due to uneven humidity distribution during the humidification process.

[0005] Therefore, in order to solve the shortcomings of the above problems, a 65kW fuel cell engine structure is proposed. Summary of the Invention

[0006] The utility model overcomes the deficiencies of the prior art and provides a kW fuel cell engine structure.

[0007] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a kW fuel cell engine structure, comprising a stack, a cooling subassembly arranged at the bottom of the stack, a hydrogen subassembly arranged at one side of the stack, an air subassembly arranged at one side of the stack, and a control assembly arranged at one side of the stack;

[0008] The bottom of the stack is fixedly connected to a connecting plate, the top of the stack is fixedly installed with a DCDC, the hydrogen subassembly is located on one side of the stack, and the hydrogen subassembly includes a hydrogen ejector assembly, a hydrogen inlet assembly and a hydrogen outlet steam-water separator;

[0009] The cooling subassembly is located below the connecting plate and includes a cooling water inlet assembly, a cooling water outlet assembly, a water pump assembly and a three-way valve assembly;

[0010] The air subassembly is located below the connecting plate and includes an air compressor assembly, an air inlet flow sensor, an air inlet throttle assembly, an air outlet throttle assembly, an air mixing device air inlet throttle assembly and an intercooler assembly.

[0011] In a preferred embodiment of the present invention, the control assembly includes: a fuel cell engine tail exhaust mixing device, a fuel cell engine controller, a fuse box and a high and low voltage wiring harness module.

[0012] In a preferred embodiment of the present invention, the bottom of the fuel cell stack is connected to the cooling subassembly pipeline via a connecting plate.

[0013] In a preferred embodiment of the present invention, the hydrogen ejector assembly is connected to the hydrogen inlet of the fuel cell stack through a hydrogen inlet assembly.

[0014] In a preferred embodiment of the present invention, the cooling water inlet assembly and the cooling water outlet assembly are respectively connected to the cooling water inlet and cooling water outlet pipes of the fuel cell stack.

[0015] In a preferred embodiment of the present invention, the air compressor assembly is connected to the air inlet throttle assembly pipeline via an air inlet flow sensor.

[0016] In a preferred embodiment of the present invention, the air outflow throttle assembly is connected to the air outlet pipe on one side of the fuel cell stack.

[0017] In a preferred embodiment of the present invention, the intercooler assembly is located in the air subassembly.

[0018] In a preferred embodiment of the present invention, the fuel cell engine controller is connected to the fuel cell stack, hydrogen subassembly, cooling subassembly and air subassembly pipelines through high and low voltage wiring harness modules.

[0019] In a preferred embodiment of the present invention, one end of the fuel cell engine tail exhaust mixing device is connected to the exhaust gas discharge port of the fuel cell stack, and the other end of the fuel cell engine tail exhaust mixing device is connected to the air inlet throttle assembly pipeline of the mixing device of the air sub-assembly.

[0020] The present invention solves the defects in the background technology and has the following beneficial effects:

[0021] (1) The present invention provides a 65kW fuel cell engine structure. By eliminating the hydrogen circulation pump and air humidifier, the architecture of the fuel cell engine system is significantly simplified, the complexity of the system is reduced, and not only the manufacturing cost is reduced, but also the subsequent maintenance cost and repair difficulty are reduced. The design without a hydrogen circulation pump means that the system does not require additional power to drive the hydrogen circulation, further improving the energy utilization efficiency of the overall system.

[0022] (2) The present invention provides a 65kW fuel cell engine structure. The hydrogen circulation pump and air humidifier in a traditional fuel cell engine are potential failure points. Failure of the hydrogen circulation pump and air humidifier may cause system performance degradation or even shutdown. By removing these two components, the present invention improves the reliability and stability of the system. In addition, the design without a hydrogen circulation pump reduces the risk of hydrogen leakage and further enhances the safety of the system.

[0023] (3) The present invention provides a 65kW fuel cell engine structure. Although the absence of a hydrogen circulation pump and an air humidifier affects the performance of the fuel cell to a certain extent, the device optimizes the system performance and improves the efficiency by optimizing other subsystems and control strategies. The efficient heat dissipation of the cooling subassembly ensures the stability of the fuel cell stack under long-term high-load operation, while the air subassembly ensures the quality and flow of air entering the fuel cell stack, further improving the overall performance and efficiency of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is a structural diagram of the device body from a first perspective of a preferred embodiment of the present utility model;

[0026] Figure 2 This is a structural diagram of the device body from a second viewing angle of a preferred embodiment of the present utility model;

[0027] Figure 3 This is a structural diagram of the device body from a third perspective of a preferred embodiment of the present utility model;

[0028] Figure 4 It is an exploded structural diagram of the device body of a preferred embodiment of the present utility model.

[0029] In the figure: 1. DCDC; 2. Fuel cell stack; 3. Engine tail exhaust mixing device; 4. Air compressor assembly; 5. Air inlet flow sensor; 6. Fuel cell engine controller; 7. Fuse box; 8. Hydrogen ejector assembly; 9. Air inlet throttle assembly; 10. Cooling water inlet assembly; 11. Cooling water outlet assembly; 12. Hydrogen inlet assembly; 13. Hydrogen outlet steam-water separator; 14. Air outlet throttle assembly; 16. Water pump assembly; 17. Intercooler assembly; 18. Mixing device air inlet throttle assembly; 19. Three-way valve assembly; 20. Hydrogen sub-assembly; 30. Cooling sub-assembly; 40. Connecting plate; 50. Air sub-assembly; 60. High and low voltage wiring harness module. DETAILED DESCRIPTION

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0031] like Figure 1 As shown, a 65kW fuel cell engine structure includes: a fuel cell stack 2, a cooling subassembly 30 arranged at the bottom of the fuel cell stack 2, a hydrogen subassembly 20 arranged on one side of the fuel cell stack 2, an air subassembly 50 arranged on one side of the fuel cell stack 2, and a control assembly arranged on one side of the fuel cell stack 2;

[0032] like Figure 2-Figure 4 As shown, a connecting plate 40 is fixedly connected to the bottom of the fuel cell stack 2, and a DCDC1 is fixedly installed on the top of the fuel cell stack 2. The hydrogen subassembly 20 is located on one side of the fuel cell stack 2. The hydrogen subassembly 20 includes a hydrogen ejector assembly 8, a hydrogen inlet assembly 12 and a hydrogen outlet steam-water separator 13. The cooling subassembly 30 is located below the connecting plate 40. The cooling subassembly 30 includes a cooling water inlet assembly 10, a cooling water outlet assembly 11, a water pump assembly 16 and a three-way valve assembly 19. The air subassembly 50 is located below the connecting plate 40. The air subassembly 50 includes an air compressor assembly 4, an air inlet flow sensor 5, an air inlet throttle assembly 9, an air outlet throttle assembly 14, an air inlet throttle assembly 18 of a mixing device and an intercooler assembly 17. The control assembly includes: a fuel cell engine tail exhaust mixing device 3, a fuel cell engine controller 6, a fuse box 7 and a high and low voltage wiring harness module 60.

[0033] It should be noted that the 65kW fuel cell engine structure realizes an innovative configuration without a hydrogen circulation pump and an air humidifier, which not only simplifies the system architecture, reduces production costs and maintenance difficulties, but also improves the reliability and stability of the system; the efficient heat dissipation of the cooling sub-assembly 30 ensures the stability of the fuel cell stack 2 under long-term high-load operation, while the precise control of the hydrogen sub-assembly 20 and the air sub-assembly 50 ensures the efficient supply of hydrogen and the stability of the air quality, further improving the overall performance and efficiency of the system; in addition, through the coordinated management of the control components, the system can flexibly adapt to different working conditions and needs, providing a broader space for the development and application of fuel cell engines.

[0034] like Figure 1-Figure 4 As shown, the bottom of the fuel cell stack 2 is connected to the cooling subassembly 30 pipeline through the connecting plate 40, the hydrogen ejector assembly 8 is connected to the hydrogen inlet of the fuel cell stack 2 through the hydrogen inlet assembly 12, the cooling water inlet assembly 10 and the cooling water outlet assembly 11 are respectively connected to the cooling water inlet and cooling water outlet pipelines of the fuel cell stack 2, the air compressor assembly 4 is connected to the air inlet throttle assembly 9 pipeline through the air inlet flow sensor 5, the air outlet throttle assembly 14 is connected to the air outlet pipeline on one side of the fuel cell stack 2, and the intercooler assembly 17 is located in the air subassembly 50; the fuel cell engine controller 6 is connected to the fuel cell stack 2, the hydrogen subassembly 20, the cooling subassembly 30 and the air subassembly 50 pipeline through the high and low voltage wiring harness module 60; one end of the fuel cell engine tail exhaust mixing device 3 is connected to the exhaust outlet of the fuel cell stack 2, and the other end of the fuel cell engine tail exhaust mixing device 3 is connected to the mixing device air inlet throttle assembly 18 pipeline of the air subassembly 50.

[0035] It should be noted that the fuel cell stack 2 is directly connected to the cooling subassembly 30 via a connecting plate 40, ensuring stable cooling support for the fuel cell stack 2 during operation and effectively extending the service life of the fuel cell stack 2. The hydrogen ejector assembly 8 is precisely connected to the hydrogen inlet assembly 12, ensuring a stable supply and efficient use of hydrogen while reducing the risk of hydrogen leakage. The optimized design of the cooling water inlet assembly 10 and the cooling water outlet assembly 11 ensures smooth circulation of cooling water in the fuel cell stack 2, enhancing the heat dissipation performance of the fuel cell stack 2. Regarding the air subassembly 50, the air compressor assembly 4 is connected to the air inlet throttle assembly 9 via the air inlet flow sensor 5, achieving precise control of air flow, improving combustion efficiency and power generation efficiency. At the same time, the intercooler assembly 17 effectively reduces the temperature of the air entering the fuel cell stack 2, further improving system performance. In addition, the fuel cell engine controller 6 intelligently controls and manages the fuel cell stack 2, hydrogen subassembly 20, cooling subassembly 30, and air subassembly 50 through the high and low voltage wiring harness module 60, achieving adaptive adjustment of the system and improving response speed and accuracy. Finally, the fuel cell engine tail exhaust mixing device 3 realizes the mixed emission of tail gas and air, reduces emission pollution, and improves the environmental protection performance of the system.

[0036] When the present invention is used, the air compressor assembly 4 is started, the hydrogen subassembly 20 is turned on, and hydrogen is transported to the hydrogen inlet of the fuel cell stack 2 through the hydrogen ejector assembly 8 and the hydrogen inlet assembly 12; at the same time, the cooling subassembly 30 is started, and cooling water is allowed to enter the fuel cell stack 2 through the cooling water inlet assembly 10 for cooling, and then flow back to the cooling subassembly 30 through the cooling water outlet assembly 11 for circulation, ensuring that the fuel cell stack 2 receives stable cooling support during operation; in the initial stage, the fuel cell engine is preheated to achieve the best working state;

[0037] During operation, the fuel cell engine controller 6 monitors the operating status of the fuel cell stack 2, hydrogen subassembly 20, cooling subassembly 30, and air subassembly 50 in real time through the high and low voltage wiring harness module 60, and automatically adjusts parameters such as hydrogen supply, air flow, and cooling water circulation as needed to ensure efficient and stable operation of the fuel cell engine. At the same time, the fuel cell engine controller 6 can also perform fault diagnosis. Once a system fault occurs, it will immediately issue an alarm and transmit fault information, allowing maintenance personnel to quickly locate and solve the problem.

[0038] When it is necessary to stop the fuel cell engine, first shut down the hydrogen subassembly 20 to stop the hydrogen supply; then, stop the air compressor assembly 4, and close the air inlet flow sensor 5 and the air inlet throttle assembly 9; then, stop the water pump assembly 16 of the cooling subassembly 30, and let the cooling water cool naturally in the fuel cell stack 2 before being discharged; finally, shut down the entire system through the fuel cell engine controller 6 to ensure that all subsystems are safely shut down.

[0039] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A 65kW fuel cell engine structure, comprising a fuel cell stack (2), a cooling subassembly (30) arranged at the bottom of the fuel cell stack (2), a hydrogen subassembly (20) arranged on one side of the fuel cell stack (2), an air subassembly (50) arranged on one side of the fuel cell stack (2), and a control assembly arranged on one side of the fuel cell stack (2). It is characterized by: The bottom of the battery stack (2) is fixedly connected to a connecting plate (40), the top of the battery stack (2) is fixedly mounted with a DCDC (1), the hydrogen subassembly (20) is located on one side of the battery stack (2), and the hydrogen subassembly (20) includes a hydrogen ejector assembly (8), a hydrogen inlet assembly (12), and a hydrogen outlet steam-water separator (13); The cooling subassembly (30) is located below the connecting plate (40), and the cooling subassembly (30) includes a cooling water inlet assembly (10), a cooling water outlet assembly (11), a water pump assembly (16), and a three-way valve assembly (19); The air subassembly (50) is located below the connecting plate (40), and comprises an air compressor assembly (4), an air inlet flow sensor (5), an air inlet throttle assembly (9), an air outlet throttle assembly (14), an air mixing device air inlet throttle assembly (18), and an intercooler assembly (17).

2. A 65kW fuel cell engine structure according to claim 1, characterized in that: The control assembly comprises: a fuel cell engine tail exhaust mixing device (3), a fuel cell engine controller (6), a fuse box (7) and a high and low voltage wiring harness module (60).

3. The 65kW fuel cell engine structure according to claim 1, characterized in that: The bottom of the battery stack (2) is connected to the cooling subassembly (30) pipeline via a connecting plate (40).

4. The 65kW fuel cell engine structure according to claim 1, characterized in that: The hydrogen ejector assembly (8) is connected to the hydrogen inlet of the fuel cell stack (2) via the hydrogen inlet assembly (12).

5. The 65kW fuel cell engine structure according to claim 1, characterized in that: The cooling water inlet assembly (10) and the cooling water outlet assembly (11) are respectively connected to the cooling water inlet and cooling water outlet pipes of the fuel cell stack (2).

6. The 65kW fuel cell engine structure according to claim 1, characterized in that: The air compressor assembly (4) is connected to the air inlet throttle assembly (9) through an air inlet flow sensor (5).

7. The 65kW fuel cell engine structure according to claim 1, characterized in that: The air outflow throttle assembly (14) is connected to an air outlet pipe on one side of the fuel cell stack (2).

8. The 65kW fuel cell engine structure according to claim 1, characterized in that: The intercooler assembly (17) is located within the air subassembly (50).

9. The 65kW fuel cell engine structure according to claim 2, characterized in that: The fuel cell engine controller (6) is connected to the fuel cell stack (2), the hydrogen subassembly (20), the cooling subassembly (30) and the air subassembly (50) pipelines via a high and low voltage wiring harness module (60).

10. The 65kW fuel cell engine structure according to claim 2, characterized in that: One end of the fuel cell engine tail exhaust mixing device (3) is connected to the tail gas discharge port of the fuel cell stack (2), and the other end of the fuel cell engine tail exhaust mixing device (3) is connected to a pipe of an air inlet throttle assembly (18) of the mixing device of the air subassembly (50).

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