电池串联充电保护装置及充电设备

By controlling the energy storage unit of the battery module to cycle charge and discharge using PWM signals, the problem of long charging time and low efficiency of lithium-ion battery packs is solved, thereby improving battery safety and charging efficiency.

CN116545058BActive Publication Date: 2026-07-17SHENZHEN HYMSON LASER INTELLIGENT EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN HYMSON LASER INTELLIGENT EQUIP CO LTD
Filing Date
2023-04-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During the charging process of lithium-ion battery packs, the extended charging time and low efficiency caused by differences in battery performance cannot be effectively solved by existing technologies through a uniform constant voltage charging method.

Method used

The energy storage unit of the charging bypass of a single battery module is controlled by PWM signal to cycle charge and discharge, thereby realizing real-time adjustment of the charging voltage of a single battery module. A battery series charging protection device and charging equipment are adopted, including a charging switch module, a battery charging module, a shunt voltage limiting module and a monitoring device. The main control device sends signals to regulate the voltage.

Benefits of technology

While ensuring battery safety, the charging efficiency of each stage of the battery module has been improved, and the charging time has been reduced.

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Abstract

本申请提供电池串联充电保护装置及充电设备,属于电源技术领域。所述装置包括多个相互串联的电池模组,电池模组包括:充电开关模块、电池充电模块、分流限压模块,充电开关模块连接电池模组的正极,充电开关模块用于获取外部输入的充电开关信号;电池充电模块用于对充电电压进行稳压滤波以对目标电池充电,充电开关模块还用于根据充电开关信号控制电池充电模块与电池模组的正极之间电性接通或断开;分流限压模块包括开关单元和储能单元,开关单元用于获取外部输入的限压保护信号,并根据限压保护信号切换开关状态以控制储能单元充放电,其中,限压保护信号为PWM信号。
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