Liquid hydrogen fuel cell vehicle power system that can avoid hydrogen leakage loss

Abstract

The invention relates to the field of new energy automobiles and provides a liquid hydrogen fuel cell automobile power system capable of avoiding hydrogen leakage losses. The liquid hydrogen fuel cell automobile power system capable of avoiding hydrogen leakage losses comprises a liquid hydrogen storage tank, a main fuel cell stack, an electrical assembly, a motor, a pressure transmission element, an auxiliary fuel cell stack, a fuel cell stack assisting device, a storage battery set and a control system module, wherein a fuel outlet of the liquid hydrogen storage tank is connected with the main fuel cell stack and the auxiliary fuel cell stack, the main fuel cell stack is connected with the motor and the storage battery set after passing through the electric assembly, and the auxiliary fuel cell stack is connected with the storage battery set after passing through the electric assembly. According to the liquid hydrogen fuel cell automobile power system capable of avoiding hydrogen leakage losses, intermittent discharging of hydrogen is avoided, volatiled hydrogen is fully utilized, energy waste is avoided, an automobile can travel by a certain distance through energy stored in the storage battery, and the situation that the automobile cannot travel due to the fact that all fuel is volatiled after the liquid hydrogen fuel cell automobile is parked for a long time is avoided.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a liquid hydrogen fuel cell vehicle power system capable of avoiding hydrogen leakage loss. Background technique [0002] With the intensification of global pollution, governments and enterprises of various countries are stepping up the research and development of new energy vehicles. Among them, fuel cell vehicles are favored by major automobile companies for their extremely low pollutant emissions, good driving range and power. Major automobile companies in the world have successively released dozens of fuel cell vehicles in recent years, and some products have embarked on the road of industrialization, with a rapid development momentum. In the vehicle technology of fuel cell vehicles, on-board hydrogen storage technology has always been an important aspect that restricts the performance of fuel cell vehicles. How to store enough hydrogen fuel in a limited space on the vehicl...

AI Technical Summary

Problems solved by technology

[0005] (1) Since hydrogen is flammable and explosive, if the released hydrogen accumulates in certain confined spaces or dead corners, it will cause great safety hazards. When the released hydrogen encounters an open flame, it will produce jet flames and cause harm to surrounding people or objects ;

[0006] (2) Intermittent hydrogen release will cause fuel waste, especially for vehicles that are not frequently used, and the fuel utilization rate is low;

[0007] (3) After the liquid hydrogen fuel cell vehicle is parked for a long time, the fuel will be exhausted due to the release of hydrogen gas, which will cause the vehicle to fail to start normally.

[0008] Patent [ZL 200610155439.7] proposes a non-destructive storage system for liquid hydrogen based on a low-temperature refrigerator. This system uses a low-temperature refrigerator to continuously supplement the cooling capacity of the liquid hydrogen storage system to avoid the volatilization loss of liquid hydrogen. However, the refrigerator is usually bulky , the quality is heavy, not suitable for vehicle use

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