The invention provides a hydrogen energy automobile fuel cell bus pre-charging system. The system comprises a fuel cell module, a positive contactor, a pre-charging contactor, a pre-charging resistor, a load module and a negative contactor which are electrically connected in sequence; the positive electrode of the fuel cell module is connected with one end of the positive electrode contactor and one end of the pre-charging contactor, the other end of the pre-charging contactor is connected with one end of the pre-charging resistor, the other end of the pre-charging resistor is electrically connected with the other end of the positive electrode contactor, and the other end of the pre-charging resistor is further electrically connected with one end of the load module; the other end of the load module is electrically connected with one end of the cathode contactor, and the other end of the cathode contactor is electrically connected with the cathode of the fuel cell module. The invention has the beneficial effects that safe starting of a fuel cell power system is facilitated, the service life of a switch or a contactor is prolonged, long-term safe and normal work of a vehicle is guaranteed, and personal safety can be protected.
本发明提供一种氢能汽车燃料电池母线预充系统,该系统包括依次电性连接的燃料电池模块、正极接触器、预充接触器、预充电阻、负载模块和负极接触器;燃料电池模块的正极分别与正极接触器一端和预充接触器一端连接,预充接触器另一端与预充电阻的一端连接,预充电阻另一端和正极接触器另一端电性连接,预充电阻另一端还与负载模块一端电性连接,负载模块另一端与负极接触器一端电性连接,负极接触器另一端与燃料电池模块的负极电性连接。本发明的有益效果:有助于燃料电池动力系统安全启动,并且延长开关或接触器寿命,保证车辆长期安全正常工作,还可以保护人身安全。
Hydrogen energy automobile fuel cell bus pre-charging system
一种氢能汽车燃料电池母线预充系统
2021-06-18
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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