The invention discloses a hydrogen fuel cell power system for a forklift. The hydrogen fuel cell power system comprises a system frame, an electric pile, a lithium battery system and a hydrogen storage system; a partition plate is horizontally arranged in the system frame; the system frame is divided into an upper-layer space and a lower-layer space through the partition plate; and the lithium battery system and the hydrogen storage system are both installed in the lower-layer space. Hydrogen is stored through a hydrogen storage bottle, input and output are controlled through a bottle valve assembly, the bottle valve assembly conveys the hydrogen into a fuel cell stack for reaction, after electric energy is generated, the electric energy is adjusted to a voltage plateau required by a vehicle through a step-down DCDC, and the electric energy generated by the fuel cell stack can be directly output to a motor of the whole vehicle, and the electric energy can be also output to a lithium battery pack to be stored, and then the lithium battery pack supplies power to the motor of the electric forklift. The forklift power supply system can provide continuous output power of 5kW and peak output power of 35kW for the whole forklift, and meets the use requirements of most of 1-2.5 ton counterbalance forklifts. In the working process of the forklift, the performance of the whole forklift cannot be affected along with reduction of the stored energy.
本发明公开了一种叉车用氢燃料电池动力系统,包括:系统框架、电堆、锂电池系统和储氢系统,系统框架内部水平设置隔板且通过隔板分隔为上、下两层空间,锂电池系统和储氢系统均安装在下层空间内。本发明通过储氢瓶来存储氢气并由瓶阀组件来控制输入输出,瓶阀组件将氢气输送至燃料电池电堆中进行反应,并在产生电能后经降压DCDC调节至车辆需求的电压平台,电堆产生的电能既可以直接输出给整车电机,又可以输出至锂电池包内存储电能,再由锂电池包对电动叉车电机进行供电。叉车电源系统可为整车提供5kW持续输出功率以及35kW峰值输出功率,满足绝大多数1~2.5吨平衡重式叉车使用需求。在叉车工作工程中,不会随着储能量的减少而影响整车性能。
Hydrogen fuel cell power system for forklift
一种叉车用氢燃料电池动力系统
2021-07-09
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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