BMS protection system with dual protection
By designing dual protection circuits and switching circuits in BMS protection system to cut off the overcharge or overdischarge circuits, the problem of insufficient safety performance in the existing technology when a single protection circuit fails is solved, and higher safety and reliability are achieved .
CN222234461UActive Publication Date: 2024-12-24SHENZHEN LITONGWEI ENERGY CO LTD
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Patent Information
- Application Number
- CN202420765286.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-15
Smart Images
Figure CN222234461U_ABST
Abstract
The utility model discloses a BMS (Battery Management System) protection system with dual protection, which is characterized in that two protection circuits, a charging switch circuit and a discharging switch are designed, when the voltage of a pin corresponding to the first-stage protection circuit is overcharged, overcharge protection is carried out, a charging loop is cut off, and an overvoltage protection state is entered; when the pin circuit reaches an over-discharge condition, the discharge loop is cut off to enter an under-voltage protection state, and when the first-stage protection circuit fails, the second-stage protection circuit is started, and when the pin voltage corresponding to the second-stage protection circuit is overcharged, overcharge protection is carried out, and the charge loop is cut off to enter an overvoltage protection state. When the pin circuit reaches an over-discharge condition, the discharge loop is cut off to enter an under-voltage protection state, double insurance for BMS protection is provided, the safety performance is higher, and the circuit is more reliable.
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