Fuel cell engine system

Abstract

The present invention relates to a fuel cell engine system. The present invention includes a stack module, including: a stack, a fuel cell controller and a DC converter and controller, wherein the fuel cell controller is connected to the stack and the DC converter and controller respectively; a flow channel plate module, which is horizontally arranged on one side of the stack module and relatively independent of each other, and the flow channel plate module includes a medium plate and an interface component integrated on the medium plate, and the interface component is connected to the medium of the stack module through the medium plate to realize the entry and exit and flow of hydrogen, air, and coolant medium; wherein the flow channel plate module also includes a power source component connected to the interface component. Each module is relatively independent, realizing the regular division of the overall area. Compared with the high-integration layout in the prior art, it is more convenient to adjust its internal parts, reducing the synchronous adaptive adjustment of peripheral parts, and reducing the modification cost and cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and in particular to a fuel cell engine system. Background Art

[0002] Low-power fuel cell engine systems are usually used as a powertrain, but they are still composed of multiple dispersed functional parts. At present, the spatial layout of low-power fuel cell engine systems pursues high integration, a small number of parts, light weight, and full use of space according to the shape of the parts. Although the assembly volume is small, if the main parts need to be adjusted, a large number of surrounding parts will be adjusted synchronously, resulting in high modification costs, long cycles, and long assembly time.

[0003] Therefore, how to reasonably utilize the space of a small-power fuel cell engine system to adjust the parts therein, avoid causing synchronous adaptive adjustments of a large number of surrounding parts, reduce modification costs and cycles, and reduce assembly time is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0004] To this end, the present invention provides a fuel cell engine system in which each module is relatively independent, achieving regular division of the overall area. Compared with the highly integrated layout in the prior art, it is more convenient to adjust its internal parts, reduces the synchronous adaptive adjustment of peripheral parts, and reduces the modification cost and cycle.

[0005] In order to solve the above technical problems, the present invention provides a fuel cell engine system, including a mounting body and: The stack module comprises: a stack, a fuel cell controller and a DC converter and controller, wherein the fuel cell controller is connected to the stack and the DC converter and controller respectively; The flow channel plate module is horizontally arranged on one side of the fuel cell stack module and is relatively independent of each other. The flow channel plate module includes a medium plate and an interface component integrated on the medium plate. The interface component is connected to the medium of the fuel cell stack module through the medium plate to achieve the entry, exit and flow of media including hydrogen, air and coolant; wherein the flow channel plate module also includes a power source component connected to the interface component.

[0006] In one embodiment of the present invention, the interface assembly includes a stack coolant inlet connector, a stack coolant outlet connector, a stack hydrogen inlet connector, a stack air inlet connector, and a stack hydrogen, air and water outlet connector installed on the dielectric plate; The power source assembly includes an air compressor, a hydrogen ratio control valve, a hydrogen circulation pump, a hydrogen exhaust and drainage valve, a cooling circuit water pump, and a cooling circuit three-way valve installed on the medium plate; The stack hydrogen inlet connector is used to introduce hydrogen into the hydrogen inlet channel of the stack through the dielectric plate, and the hydrogen outlet of the stack is connected to the hydrogen circulation pump, which guides the hydrogen discharged from the stack back to the hydrogen inlet channel of the stack to achieve the recycling of hydrogen; The hydrogen ratio control valve is connected to the hydrogen inlet of the fuel cell stack and is used to adjust the flow rate and ratio of hydrogen input into the fuel cell stack; The stack air inlet connector is used to introduce air into the stack air inlet through the dielectric plate and is connected to the air compressor; The stack coolant inlet connector is used to receive coolant and is connected to the cooling circuit water pump and is connected to the stack coolant inlet through the dielectric plate; The stack coolant inlet connector is used to introduce the coolant into the stack cooling circuit through the dielectric plate and is connected to the cooling circuit water pump to maintain a suitable operating temperature of the stack; The stack coolant outlet connector is used to discharge the heated coolant in the stack, and is connected to the cooling circuit water pump and the cooling circuit three-way valve to realize the circulation and distribution of the coolant in the system; The fuel cell stack hydrogen, air and water outlet connector is used to discharge a mixture of hydrogen, air and water generated by the reaction in the fuel cell stack, and is connected to the hydrogen exhaust and water drain valve.

[0007] In one embodiment of the present invention, a stack coolant exhaust port is further arranged in the stack module for exhausting the gas in the coolant circuit.

[0008] In one embodiment of the present invention, the space of the flow channel plate module includes a left area, a middle area, and a right area; Among them, the air compressor is arranged in the left area; the hydrogen ratio control valve, the hydrogen circulation pump, and the hydrogen exhaust and drain valve are arranged in the middle area; the cooling circuit water pump and the cooling circuit three-way valve are arranged in the right area.

[0009] In one embodiment of the present invention, the fuel cell controller is arranged on a horizontal side of the fuel cell stack, and the DC converter and controller are arranged on the top of the fuel cell stack.

[0010] In one embodiment of the present invention, the DC conversion and controller integrates a DC booster, an air compressor controller, a hydrogen circulation pump controller, and a cooling water pump controller.

[0011] In one embodiment of the present invention, a sensor is also installed on the medium plate.

[0012] In one embodiment of the present invention, installation parts are respectively provided at the positions corresponding to the DC conversion and controller in the fuel cell module and the positions corresponding to the air compressor, the hydrogen ratio control valve, the hydrogen circulation pump, the hydrogen exhaust and drain valve, the cooling circuit water pump, and the cooling circuit three-way valve in the flow channel plate module. Each of the installation parts can adapt to the installation of multiple models of the DC conversion and controller, the air compressor, the hydrogen ratio control valve, the hydrogen circulation pump, the hydrogen exhaust and drain valve, the cooling circuit water pump, and the cooling circuit three-way valve.

[0013] The above technical solution of the present invention has the following advantages compared with the prior art: The fuel cell engine system of the present invention adopts a spatial modular integrated design scheme, and modules are divided according to part size, architecture and type. The main parts inside the module are spatially independent, and space is reserved considering the differences in part appearance and architecture adjustment, so that a small-power fuel cell engine system can take into account multiple part layout schemes and multiple system configuration schemes at the same time, and can meet the requirements of small space layout, such as drones, cogeneration, forklifts, etc.

[0014] The fuel cell engine system of the present invention is divided into overall modules and the internal space of the modules is independently divided, taking into account high system integration and high adjustment flexibility, meeting the requirements of layout in a small space, and thus can easily switch and adjust system solutions required by different application scenarios, such as drones, cogeneration, forklifts, etc.

[0015] The fuel cell engine system of the present invention divides and reserves installation space for key parts such as air compressor, hydrogen ratio control valve, hydrogen circulation pump, hydrogen exhaust and drainage valve, cooling circuit water pump, cooling circuit three-way valve, etc. in the early stage of design. Each module is relatively independent, the overall area is divided regularly, and the modules are physically connected and connected by medium plates, which is convenient for combination and splitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the axial structure of the fuel cell engine system provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the main structure of the fuel cell engine system provided by the present invention.

[0019] Figure 3 The left side structure diagram of the fuel cell engine system provided by the present invention.

[0020] Figure 4 A schematic top view of the structure of the fuel cell engine system provided by the present invention.

[0021] Figure 5 A schematic diagram of the structure of the flow channel plate module adapted to the DC conversion and controller provided by the present invention.

[0022] Figure 6 A schematic diagram of the structure of the flow channel plate module provided by the present invention adapted to an air compressor.

[0023] Figure 7 A schematic diagram of the structure of the flow channel plate module provided by the present invention adapted to the hydrogen circulation pump.

[0024] Figure 8 A schematic diagram of the structure of the flow channel plate module provided by the present invention adapted to the cooling path water pump.

[0025] Description of the Figures in the Specification: 1. Fuel cell module; 2. Flow channel module; 3. Air compressor; 4. Hydrogen circulation pump; 5. Cooling circuit water pump; 6. Cooling circuit water pump; 7. Fuel cell hydrogen inlet connector; 8. Hydrogen ratio control valve; 9. Hydrogen exhaust and drain valve; 10. Fuel cell coolant inlet connector; 11. Fuel cell coolant outlet connector; 12. Fuel cell hydrogen air water outlet connector; 13. Fuel cell; 14. DC conversion and controller; 15. Fuel cell coolant exhaust port; 16. Fuel cell controller; 17. Fuel cell air inlet connector; 18. Dielectric plate. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0028] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0030] Reference Figures 1 to 4 As shown, a fuel cell engine system of the present invention, specifically a low-power fuel cell engine system, includes a mounting body and: The stack module 1 includes: a stack 13, a fuel cell controller 16 and a DC converter and controller 14, wherein the fuel cell controller 16 is connected to the stack 13 and the DC converter and controller 14 respectively; The flow channel plate module 2 is horizontally arranged on one side of the fuel cell stack module 1 and is relatively independent of each other. The flow channel plate module 2 includes a medium plate 18 and an interface component integrated on the medium plate 18. The interface component is connected to the medium of the fuel cell stack module 1 through the medium plate 18 to achieve the entry, exit and flow of media including hydrogen, air, and coolant; wherein the flow channel plate module 2 also includes a power source component connected to the interface component.

[0031] In one embodiment of the present invention, the interface component includes a stack coolant inlet connector 10, a stack coolant outlet connector 11, a stack hydrogen inlet connector 7, a stack air inlet connector 17, and a stack hydrogen air water outlet connector 12 installed on the medium plate 18; the power source component includes an air compressor 3, a hydrogen ratio control valve 8, a hydrogen circulation pump 4, a hydrogen exhaust and drainage valve 9, a cooling path water pump 6, and a cooling path three-way valve installed on the medium plate 18; wherein the stack hydrogen inlet connector 7 is used to introduce hydrogen into the hydrogen inlet channel of the stack 13 through the medium plate 18, and the hydrogen outlet of the stack 13 is connected to the hydrogen circulation pump 4, and the hydrogen circulation pump 4 will guide the hydrogen discharged from the stack 13 back to the hydrogen inlet channel of the stack 13 again to realize the recycling of hydrogen; the hydrogen ratio control valve 8 is connected to the hydrogen inlet of the stack 13, and is used to adjust the hydrogen flow input into the stack 13 amount and proportion; the stack air inlet connector 17 is used to introduce air into the air inlet of the stack 13 through the medium plate 18, and is connected to the air compressor 3; the stack coolant inlet connector 10 is used to receive coolant, and is connected to the cooling circuit water pump 6 and is connected to the coolant inlet of the stack 13 through the medium plate 18; the stack coolant inlet connector 10 is used to introduce coolant into the cooling circuit of the stack 13 through the medium plate 18, and is connected to the cooling circuit water pump 6 to maintain a suitable working temperature of the stack 13; the stack coolant outlet connector 11 is used to discharge the coolant after heating in the stack 13, and is connected to the cooling circuit water pump 6 and the cooling circuit three-way valve to realize the circulation and distribution of the coolant in the system; the stack hydrogen air water outlet connector 12 is used to discharge the mixture of hydrogen, air and water produced by the reaction in the stack 13, and is connected to the hydrogen exhaust and drain valve 9.

[0032] In addition, a stack coolant exhaust port 15 is arranged in the stack module 1 for exhausting the gas in the coolant circuit.

[0033] The modules are physically and electrically connected via the dielectric plate 18, ensuring efficient flow of media such as hydrogen, air, and coolant. At the same time, the modular connection method makes the assembly and disassembly of the system more convenient, simplifies the assembly process, and improves the efficiency of production and maintenance.

[0034] It is understandable that the medium plate 18 is used to distribute the inlet and outlet and flow of media such as hydrogen, air and coolant. It is made of high-strength, corrosion-resistant materials, such as stainless steel. Hydrogen and air flow channels are designed on the medium plate 18. The flow channel design ensures that the gas is evenly distributed to each battery cell of the stack 13, thereby improving the reaction efficiency of the fuel cell. The coolant flow channel and the gas flow channel are staggered or arranged in parallel to ensure that the fuel cell effectively dissipates heat during operation, maintains a suitable operating temperature, and extends the life of the stack 13. Standardized interface holes are also reserved on the medium plate 18 for connecting the imports and exports of various media. In addition, the medium plate 18 integrates connection interfaces with power source components (such as air compressor 3, hydrogen circulation pump 4, cooling water pump, etc.). Through modular design, the connection of the power source components can be flexibly disassembled and assembled, which is convenient for system maintenance and upgrading.

[0035] In one embodiment, the space of the flow channel plate module 2 includes a left area, a middle area, and a right area; wherein the air compressor 3 is arranged in the left area; the hydrogen ratio control valve 8, the hydrogen circulation pump 4, and the hydrogen exhaust and drain valve 9 are arranged in the middle area; the cooling circuit water pump 6 and the cooling circuit three-way valve are arranged in the right area.

[0036] In one embodiment, the fuel cell controller 16 is arranged on a horizontal side of the fuel cell stack 13 , and the DC converter and controller 14 is arranged on the top of the fuel cell stack 13 .

[0037] In one embodiment, the DC converter and controller 14 integrates a DC booster, an air compressor controller, a hydrogen circulation pump 4 controller, and a cooling water pump controller. This integrated design not only simplifies the system structure and reduces the number of independent controllers, but also improves the coordination and response speed between the control modules, thereby improving the overall performance of the system.

[0038] In one embodiment, the medium plate 18 is also equipped with a sensor for real-time monitoring of the system's operating status, such as temperature, pressure, flow rate and other parameters. Through the data feedback from the sensor, the fuel cell controller 16 can adjust the system operating parameters in a timely manner to ensure that the system works in the best state, thereby improving the intelligence level and safety of the system.

[0039] In one embodiment, the positions corresponding to the DC conversion and controller 14 in the stack module 1, and the positions corresponding to the air compressor 3, the hydrogen ratio control valve 8, the hydrogen circulation pump 4, the hydrogen exhaust and drainage valve 9, the cooling circuit water pump 6, and the cooling circuit three-way valve in the flow channel plate module 2 are respectively provided with installation parts, and each of the installation parts can be adapted to the installation of multiple models of the DC conversion and controller 14, the air compressor 3, the hydrogen ratio control valve 8, the hydrogen circulation pump 4, the hydrogen exhaust and drainage valve 9, the cooling circuit water pump 6, and the cooling circuit three-way valve. Each installation part can adopt a standardized installation interface such as a standardized installation base, hole position, buckle, installation flange, etc.

[0040] For example, the position corresponding to the DC converter and controller 14 in the stack module 1 can be adapted to various types of DC converters and controllers 14, such as Figure 5 As shown, at least three types of DC converters and controllers 14 are adaptable.

[0041] The position corresponding to the air compressor 3 in the flow channel module 2 can be adapted to various types of air compressors 3, such as Figure 6 As shown, at least three types of air compressors 3 are adaptable.

[0042] The position corresponding to the hydrogen circulation pump 4 in the flow channel module 2 can be adapted to various types of hydrogen circulation pumps 4, such as Figure 7 As shown, at least two types of hydrogen circulation pumps 4 are adapted.

[0043] The position corresponding to the cooling circuit water pump 6 in the flow channel module 2 can be adapted to various types of cooling circuit water pumps 6, such as Figure 8 As shown, at least two types of cooling circuit water pumps 6 are adapted.

[0044] In the early stage of design, installation space was divided and reserved for key parts such as air compressor 3, hydrogen ratio control valve 8, hydrogen circulation pump 4, hydrogen exhaust and drainage valve 9, cooling circuit water pump 6, cooling circuit three-way valve, etc. By setting an adaptive installation part in the flow channel plate module 2, key parts of various models can be flexibly adapted, which enhances the versatility and expansibility of the system and facilitates subsequent upgrades and replacements.

[0045] The low-power fuel cell engine system is divided into a stack module 1 and a flow channel plate module 2. The main parts space inside each module is independent, avoiding mutual interference between different functional components. This design not only improves the overall organization of the system, but also allows each module to be flexibly combined according to actual needs to adapt to different application scenarios. Compared with the high-integration but complex structure layout in the prior art, the present invention achieves a balance between high system integration and high adjustment flexibility through overall module division and independent distinction of module internal space. This means that when a part needs to be adjusted or replaced, there is no need to adjust a large number of surrounding parts synchronously, which greatly improves the efficiency of maintenance and upgrading and reduces the modification cost and cycle. The fuel cell engine system is compact and flexible in design, can meet the layout requirements of a small space, and is suitable for a variety of application scenarios such as drones, cogeneration systems, forklifts, etc. Its efficient and reliable performance and flexible modular design give it broad application prospects and market potential in different fields.

[0046] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A fuel cell engine system, characterized in that: It includes a mounting body and: A fuel cell module (1) comprising: a fuel cell (13), a fuel cell controller (16) and a DC converter and controller (14), wherein the fuel cell controller (16) is connected to the fuel cell (13) and the DC converter and controller (14) respectively; A flow channel plate module (2) is horizontally arranged on one side of the stack module (1) and is relatively independent of each other, the flow channel plate module (2) comprising a medium plate (18) and an interface component integrated on the medium plate (18), the interface component being connected to the medium of the stack module (1) via the medium plate (18) to achieve the entry, exit and flow of a medium including hydrogen, air and coolant; wherein the flow channel plate module (2) further comprises a power source component connected to the interface component.

2. A fuel cell engine system according to claim 1, characterized in that: The interface assembly comprises a stack coolant inlet connector (10), a stack coolant outlet connector (11), a stack hydrogen inlet connector (7), a stack air inlet connector (17), and a stack hydrogen, air and water outlet connector (12) mounted on the dielectric plate (18); The power source assembly comprises an air compressor (3) mounted on a medium plate (18), a hydrogen ratio control valve (8), a hydrogen circulation pump (4), a hydrogen exhaust and drainage valve (9), a cooling path water pump (6), and a cooling path three-way valve; The stack hydrogen inlet connector (7) is used to introduce hydrogen into the hydrogen inlet channel of the stack (13) through the dielectric plate (18); the hydrogen outlet of the stack (13) is connected to the hydrogen circulation pump (4); the hydrogen circulation pump (4) guides the hydrogen discharged from the stack (13) back to the hydrogen inlet channel of the stack (13), thereby realizing the recycling of hydrogen; The hydrogen ratio control valve (8) is connected to the hydrogen inlet of the fuel cell stack (13) and is used to adjust the flow rate and ratio of hydrogen input into the fuel cell stack (13); The stack air inlet connector (17) is used to introduce air into the air inlet of the stack (13) through the dielectric plate (18) and is connected to the air compressor (3); The stack coolant inlet connector (10) is used to receive coolant and is connected to the cooling circuit water pump (6) and is connected to the coolant inlet of the stack (13) via the dielectric plate (18); The stack coolant inlet connector (10) is used to introduce the coolant into the stack (13) cooling circuit through the dielectric plate (18), and is connected to the cooling circuit water pump (6) to maintain a suitable operating temperature of the stack (13); The stack coolant outlet connector (11) is used to discharge the coolant after heating in the stack (13), and is connected to the cooling circuit water pump (6) and the cooling circuit three-way valve to achieve circulation and distribution of the coolant in the system; The fuel cell stack hydrogen, air and water outlet connector (12) is used to discharge a mixture of hydrogen, air and water generated by a reaction in the fuel cell stack (13), and is connected to the hydrogen exhaust and water discharge valve (9).

3. A fuel cell engine system according to claim 2, characterized in that: A stack coolant exhaust port (15) is also arranged in the stack module (1) for exhausting gas in the coolant circuit.

4. A fuel cell engine system according to claim 2, characterized in that: The space of the flow channel plate module (2) comprises a left area, a middle area, and a right area; The air compressor (3) is arranged in the left area; the hydrogen ratio control valve (8), the hydrogen circulation pump (4), and the hydrogen exhaust and drain valve (9) are arranged in the middle area; and the cooling circuit water pump (6) and the cooling circuit three-way valve are arranged in the right area.

5. A fuel cell engine system according to claim 1, characterized in that: The fuel cell controller (16) is arranged on a horizontal side of the fuel cell stack (13), and the DC converter and controller (14) is arranged on the top of the fuel cell stack (13).

6. A fuel cell engine system according to claim 1, characterized in that: The DC converter and controller (14) integrates a DC booster, an air compressor controller, a hydrogen circulation pump (4) controller, and a cooling water pump controller.

7. A fuel cell engine system according to claim 1, characterized in that: A sensor is also installed on the medium plate (18).

8. A fuel cell engine system according to claim 2, characterized in that: Mounting parts are respectively provided at positions corresponding to the DC converter and controller (14) in the stack module (1) and positions corresponding to the air compressor (3), the hydrogen ratio control valve (8), the hydrogen circulation pump (4), the hydrogen exhaust and drain valve (9), the cooling path water pump (6), and the cooling path three-way valve in the flow channel plate module (2). Each mounting part can be adapted to the installation of multiple models of the DC converter and controller (14), the air compressor (3), the hydrogen ratio control valve (8), the hydrogen circulation pump (4), the hydrogen exhaust and drain valve (9), the cooling path water pump (6), and the cooling path three-way valve.

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