The invention discloses an automobile battery pack safety protection system. By designing the safety protection system for the automobile battery pack, namely connecting the automobile battery pack, the high-low voltage output integrated module and the storage battery, a BMS mainboard in the high-low voltage output integrated module is configured to perform adhesion state monitoring on a main positive relay, a pre-charging relay and a quick-charging relay respectively; and when it is monitored that the main positive relay, the pre-charging relay or the quick-charging relay is in an adhesion state, the intelligent fuse is triggered to cut off the high-voltage loop, so that a safety protection mode of triggering the intelligent fuse to cut off the high-voltage loop can be added on the basis of a safety protection mode of an existing automobile battery pack; therefore, the connection between the high-voltage system and the external load can be cut off in a failure mode of relay adhesion caused by low current, and the risk of electric shock is avoided, so that the safety protection of the automobile battery pack is comprehensively and effectively realized.
本发明公开了一种汽车电池包安全保护系统。本发明通过设计汽车电池包安全保护系统,即连接汽车电池包、高低压输出集成模块和蓄电池,将高低压输出集成模块中的BMS主板配置为:分别对主正继电器、预充继电器、快充继电器进行粘连状态监测,并在监测到主正继电器、预充继电器或快充继电器处于粘连状态时,触发智能熔断器切断高压回路,能够在现有汽车电池包的安全保护方式的基础上,增加触发智能熔断器切断高压回路的安全保护方式,使得在小电流导致继电器粘连的失效模式下也能切断高压系统与外部负载的连接,杜绝触电风险,从而全面有效地实现对汽车电池包的安全保护。
Safety protection system for automobile battery pack
一种汽车电池包安全保护系统
2023-05-09
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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