A lithium battery protection circuit and device

By designing a lithium battery protection circuit, including a filter module, a protection chip, and multiple protection modules, the problems of overcharging and over-discharging of lithium batteries are solved, thereby improving the safety and lifespan of lithium batteries.

CN224385068UActive Publication Date: 2026-06-19FOSHAN JIAYING BATTERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN JIAYING BATTERY CO LTD
Filing Date
2025-05-22
Publication Date
2026-06-19

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    Figure CN224385068U_ABST
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Abstract

The utility model belongs to battery technical field, the utility model discloses a lithium battery protection circuit and equipment, include: lithium battery group, filter module, protection chip, charge overvoltage protection module, discharge overvoltage protection module, voltage monitoring module, charge and discharge overcurrent protection module and temperature protection module, lithium battery group is connected with protection chip through filter module, lithium battery group's positive pole end is connected with positive output, lithium battery group's negative pole end is connected with negative output, and filter module is connected with positive output, protection chip is connected with charge overvoltage protection module, discharge overvoltage protection module, voltage monitoring module, charge and discharge overcurrent protection circuit and temperature protection module respectively, charge overvoltage protection module is connected with positive output and negative output respectively, and discharge overvoltage protection module, voltage monitoring module, charge and discharge overcurrent protection circuit and temperature protection module all are connected with negative output. The utility model aims at improving the security of lithium battery circuit.
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