过流保护电路及车辆
By setting an overcurrent detection module in the battery system to directly drive the active fuse, the problems of high power consumption and fuse blowing delay caused by long-term operation of the analog front-end chip are solved, achieving low-power and high-reliability overcurrent protection.
CN224520656UActive Publication Date: 2026-07-17XIAOMI EV TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAOMI EV TECH CO LTD
- Filing Date
- 2025-02-25
- Publication Date
- 2026-07-17
Smart Images
Figure CN224520656U_ABST
Abstract
本公开是关于一种过流保护电路及车辆，涉及电池技术领域。该过流保护电路包括：过流检测模块和驱动支路；过流检测模块的第一端电连接于动力电池系统中的分流电阻的第一端以检测动力电池系统的电流，过流检测模块的第二端与驱动支路的第一端电连接；过流检测模块包括至少一过流检测支路；驱动支路的第二端与动力电池系统中的主动型熔断器电连接；过流检测模块被配置为响应于检测到电流超过预设保护值，输出过流信号；驱动支路被配置为响应于接收过流信号生成第一驱动信号，以驱动主动型熔断器熔断。本公开能够实现无需唤醒模拟前端芯片就能够实施过流保护，不仅降低了功耗，而且减少了主动型熔断器熔断的时延，提高过流保护的可靠性和安全性。
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