Quickly replaceable fuel and electricity integrated power system

Abstract

The utility model discloses a quick refueling and electric integrated power system. It comprises a fuel cell system, a hydrogen storage system and a power battery system. The fuel cell system is connected with a fuel cell main heat dissipation system and a fuel cell auxiliary heat dissipation system. The fuel cell system, the hydrogen storage system and the power battery system are arranged inside an integrated frame. The fuel cell main heat dissipation system and the fuel cell auxiliary heat dissipation system are arranged outside the integrated frame. The integrated frame is wrapped with a skin. The quick refueling and electric integrated power system comprises but is not limited to the above four systems. The system can be integrated with a vehicle drive motor, a vehicle control module and the like according to space and endurance mileage, thereby realizing power modular design in a true sense.

Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicles, specifically relating to a power system that can be quickly replaced with a gas-electric integrated power system. Background Technology

[0002] A fuel cell vehicle is a car powered by electricity generated by an onboard fuel cell unit. The fuel used in the onboard fuel cell unit is high-purity hydrogen. Fuel cell vehicles include fuel cell commercial vehicles, passenger cars, and some special-purpose vehicles.

[0003] Currently, commercial vehicles using fuel cells typically have the fuel cell system located at the bottom of the cab, the hydrogen storage system located between the cab and the cargo box, the cooling system located on the hydrogen storage system frame, and the power battery system located in the space at the bottom of the cargo box. These components are quite dispersed, with long high and low voltage lines and pipelines, and the control units for each system are also dispersed, lacking a centralized "brain." This makes them susceptible to interference during information transmission, leading to frequent malfunctions. Utility Model Content

[0004] This invention provides a rapidly replaceable integrated fuel cell and electric powertrain system for vehicles, integrating a fuel cell system, a hydrogen storage system, a cooling system, and a power battery system. It is equivalent to integrating the entire vehicle's power module, achieving a high degree of integration while enabling rapid replacement and maintenance.

[0005] The technical solution of this utility model is as follows.

[0006] A rapidly replaceable integrated fuel cell and electric powertrain system is disclosed. It includes a fuel cell system, a hydrogen storage system, and a power battery system. The fuel cell system is connected to a main fuel cell cooling system and an auxiliary fuel cell cooling system. The fuel cell system, hydrogen storage system, and power battery system are housed within an integrated frame. The main fuel cell cooling system and auxiliary fuel cell cooling system are located outside the integrated frame, which is encased in a skin. This invention achieves physical integration of the entire vehicle power module through the integration of the hydrogen storage system, fuel cell system, cooling system, and power battery system, resulting in only a fixed structure and high-voltage power output to the outside. The rapidly replaceable integrated fuel cell and electric powertrain system used in this invention includes, but is not limited to, the above four major systems. Depending on space and driving range, it can subsequently integrate the vehicle drive motor, vehicle control module, etc., thereby truly realizing modular powertrain design.

[0007] More preferably, the bottom of the integrated frame is provided with a mounting beam for installing and fixing the integrated frame.

[0008] More preferably, the top of the integrated frame is provided with lifting lugs for hoisting and transporting the integrated frame.

[0009] More preferably, the hydrogen storage system is connected to the fuel cell stack 1 in the fuel cell system via an ejector.

[0010] More preferably, the hydrogen storage system consists of one or more hydrogen storage cylinders.

[0011] More preferably, the fuel cell main heat dissipation system consists of a first expansion tank, a water pump, a main radiator, and a three-way valve; the outlet of the fuel cell stack is connected to the main radiator located outside the integrated frame via the water pump, the main radiator is connected to the fuel cell stack in a closed loop via the three-way valve, and the three-way valve is also connected to the water pump; the fuel cell stack, the water pump, and the main radiator are also connected to the first expansion tank.

[0012] More preferably, the fuel cell system includes a fuel cell stack, an intercooling humidification module, an air compressor, a flow meter, and an air filter; the fuel cell stack is connected to the intercooling humidification module, and the intercooling humidification module is sequentially connected to the air compressor, the flow meter, and the air filter.

[0013] More preferably, the fuel cell system further includes a water distributor and a silencer; the anode outlet of the fuel cell stack is connected to the water distributor, and both the water distributor and the intercooling humidification module are connected to the silencer.

[0014] More preferably, the fuel cell auxiliary cooling system consists of an auxiliary radiator, a DC-DC converter, an air compressor, an auxiliary water pump, and a second expansion tank; the auxiliary radiator is connected to the DC-DC converter, the air compressor, and the auxiliary water pump, the auxiliary water pump is connected to the auxiliary radiator, and the auxiliary radiator is also sequentially connected to the second expansion tank and the auxiliary water pump.

[0015] More preferably, the power battery system and the DC-DC converter in the fuel cell system are connected via high voltage for energy distribution; the power battery system consists of a power battery radiator, a power battery, and a battery management system (BMS); the power battery radiator and the BMS are respectively connected to the power battery.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] (1) The vehicle-mounted integrated power system that can be quickly replaced in this utility model can realize the integration of hydrogen storage system, fuel cell system, heat dissipation system and power battery system, and realize the physical integration of the entire power module of the vehicle.

[0018] (2) The vehicle gas-electric integrated power system adopted in this utility model has a modular design of four major systems. After verification, they are assembled on the same frame, which can meet the needs of rapid replacement and maintenance.

[0019] (3) This utility model integrates the hydrogen storage system, fuel cell system, heat dissipation system and power battery system to achieve physical integration of the entire power module of the vehicle, with only a fixed structure and high-voltage power output to the outside. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a gas-electric integrated power system that can be quickly replaced according to this utility model.

[0021] Figure 2 This diagram shows the connection relationships between the hydrogen storage system, the fuel cell system, and the main heat dissipation system of the fuel cell.

[0022] Figure 3 Structural connection diagram for auxiliary heat dissipation of fuel cells;

[0023] Figure 4 This is a schematic diagram of the power battery system connection.

[0024] The components shown in the diagram are as follows: Fuel cell main heat dissipation system A, fuel cell auxiliary heat dissipation system B, hydrogen storage system C, power battery system D, mounting beam E, lifting lug F, fuel cell stack 1, DC-DC converter 2, first expansion tank 3, water pump 4, main radiator 5, three-way valve 6, valve 7, intercooler humidification module 8, air compressor 9, flow meter 10, air filter 11, water distributor 12, ejector 13, hydrogen storage tank 14, auxiliary radiator 15, air compressor 17, auxiliary heat dissipation pump 18, second expansion tank 19, power battery radiator 20, power battery 21, battery management system (BMS) 16. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] like Figure 1As shown, a rapidly replaceable integrated fuel cell electric vehicle powertrain mainly consists of a fuel cell system, a hydrogen storage system (C), a cooling system (fuel cell main cooling system A and fuel cell auxiliary cooling system B), and a power battery system (D). The fuel cell system is connected to the fuel cell main cooling system A and the fuel cell auxiliary cooling system B. The fuel cell system, hydrogen storage system C, and power battery system D are housed within an integrated frame. The fuel cell main cooling system A and fuel cell auxiliary cooling system B are located outside the integrated frame, which serves as the main load-bearing structure for securing the four systems. In this embodiment, the hydrogen storage system supplies hydrogen to the fuel cell system, and the cooling system ensures proper heat dissipation for both the fuel cell system and the power battery system. The fuel cell and power battery systems, in conjunction with the vehicle controller, provide the driving force for the vehicle. The hydrogen storage system, fuel cell system, and power battery system share a common control unit.

[0027] This embodiment presents a modular design of four major systems in a rapidly replaceable automotive integrated fuel cell electric powertrain system. After verification, these systems are assembled onto a single frame, enabling rapid replacement and maintenance. Another rapidly replaceable automotive integrated fuel cell electric powertrain system also includes several fixed-fit structures, including a skin, mounting beams, and lifting lugs. The integrated frame is wrapped with a skin, which provides protection, conceals wiring and piping, and enhances aesthetics. The bottom of the integrated frame has a mounting beam E for fixing the integrated frame, which is secured to the vehicle suspension. The top of the integrated frame has lifting lugs F for hoisting and transporting the integrated frame; these lugs are used for system lifting.

[0028] like Figure 2 As shown, the hydrogen storage system is connected to the fuel cell stack 1 via an ejector 13. In this embodiment, the hydrogen storage system consists of three hydrogen storage cylinders 14. The fuel cell main heat dissipation system consists of a first expansion tank 3, a water pump 4, a main radiator 5, and a three-way valve 6. The outlet of the fuel cell stack 1 is connected to the main radiator 5, which is located outside the integrated frame, via the water pump 4. The main radiator 5 is connected to the fuel cell stack 1 in a closed loop via the three-way valve 6, which is also connected to the water pump 4. The fuel cell stack 1, the water pump 4, and the main radiator 5 are also connected to the first expansion tank 3.

[0029] In this embodiment, the fuel cell system includes a fuel cell stack 1, an intercooled humidification module 8, an air compressor 9, a flow meter 10, an air filter 11, a water distributor 12, and a silencer 23. The fuel cell stack 1 is connected to the intercooled humidification module 8, which is sequentially connected to the air compressor 9, the flow meter 10, and the air filter 11. The anode outlet of the fuel cell stack 1 is connected to the water distributor 12, and both the water distributor 12 and the intercooled humidification module 8 are connected to the silencer 23.

[0030] like Figure 3As shown, in this embodiment, the fuel cell auxiliary cooling system consists of an auxiliary radiator 15, a DC-DC converter 2, an air compressor 17, an auxiliary water pump 18, and a second expansion tank 19. The auxiliary radiator 15 is connected to the DC-DC converter 2, the air compressor 17, and the auxiliary water pump 18. The auxiliary water pump 18 is connected to the auxiliary radiator 15. The auxiliary radiator 15 is also sequentially connected to the second expansion tank 19 and the auxiliary water pump 18.

[0031] like Figure 4 As shown, the power battery system and the DC-DC converter 2 in the fuel cell system are connected via high voltage for energy distribution; the power battery system consists of a power battery radiator 20, a power battery 21, and a battery management system (BMS) 16; the power battery radiator 20 and the battery management system (BMS) 16 are respectively connected to the power battery 21.

[0032] The quick-change vehicle-mounted integrated fuel cell power system in this embodiment is used in new energy commercial vehicles and special vehicles; it can also be applied to fields such as stationary power generation.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A rapidly replaceable integrated gas turbine and electric power system, characterized in that, It includes a fuel cell system, a hydrogen storage system, and a power battery system; the fuel cell system is connected to a main fuel cell cooling system and a secondary fuel cell cooling system; the fuel cell system, hydrogen storage system, and power battery system are housed within an integrated frame; the main fuel cell cooling system and the secondary fuel cell cooling system are located outside the integrated frame; the integrated frame is wrapped with a skin.

2. The rapidly replaceable integrated gas turbine and electric power system according to claim 1, characterized in that, The bottom of the integrated frame is provided with mounting beams for installing and fixing the integrated frame.

3. The rapidly replaceable integrated gas turbine and electric power system according to claim 1, characterized in that, The top of the integrated frame is equipped with lifting lugs for hoisting and transporting the integrated frame.

4. The rapidly replaceable integrated gas turbine and electric power system according to claim 1, characterized in that, The hydrogen storage system is connected to the fuel cell stack in the fuel cell system via an ejector.

5. The rapidly replaceable integrated gas turbine and electric power system according to claim 4, characterized in that, The hydrogen storage system consists of one or more hydrogen storage cylinders.

6. The rapidly replaceable integrated gas turbine and electric power system according to claim 4, characterized in that, The fuel cell main cooling system consists of a first expansion tank, a water pump, a main radiator, and a three-way valve. The outlet of the fuel cell stack is connected to the main radiator located outside the integrated frame via the water pump. The main radiator is connected to the fuel cell stack in a closed loop via the three-way valve, which is also connected to the water pump. The fuel cell stack, water pump, and main radiator are also connected to the first expansion tank.

7. The rapidly replaceable integrated gas turbine and electric power system according to claim 1, characterized in that, The fuel cell system includes a fuel cell stack, an intercooled humidification module, an air compressor, a flow meter, and an air filter; the fuel cell stack is connected to the intercooled humidification module, and the intercooled humidification module is sequentially connected to the air compressor, flow meter, and air filter.

8. The rapidly replaceable integrated gas turbine and electric power system according to claim 7, characterized in that, The fuel cell system also includes a water distributor and a silencer; the anode outlet of the fuel cell stack is connected to the water distributor, and the water distributor and the intercooling humidification module are both connected to the silencer.

9. The rapidly replaceable integrated gas turbine and electric power system according to claim 1, characterized in that, The fuel cell auxiliary cooling system consists of an auxiliary radiator, a DC-DC converter, an air compressor, an auxiliary water pump, and a second expansion tank. The auxiliary radiator is connected to the DC-DC converter, the air compressor, and the auxiliary water pump. The auxiliary water pump is connected to the auxiliary radiator. The auxiliary radiator is also connected to the second expansion tank and the auxiliary water pump in sequence.

10. The rapidly replaceable integrated gas turbine and electric power system according to claim 1, characterized in that, The power battery system and the DC-DC converter in the fuel cell system are connected via high voltage for energy distribution; the power battery system consists of a power battery radiator, a power battery, and a battery management system (BMS); the power battery radiator and the battery management system (BMS) are respectively connected to the power battery.

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