Rapid charging system for lithium battery of industrial vehicle

By controlling the parallel or series connection of battery packs through relay groups, the problems of charging efficiency and complexity in industrial vehicle battery systems are solved, achieving efficient discharge and fast charging, extending battery life, and improving system stability and safety.

CN224184119UActive Publication Date: 2026-05-01ANHUI HE DING MECHANICAL & ELECTRICAL EQUIP CO LTD
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Patent Information

Application Number
CN202521266889.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2026-05-01
Estimated Expiration
2035-06-19

AI Technical Summary

Technical Problem

Existing industrial vehicle battery systems face significant technical bottlenecks in terms of charging efficiency and system complexity, failing to meet the demands for fast charging and efficient range. Furthermore, existing technical solutions are complex, costly, and inconvenient to operate.

Method used

Relay groups are used to control the parallel or series connection of battery packs, enabling high-power discharge and efficient charging. The parallel or series connection of battery packs is achieved by switching relays, thereby increasing the total voltage or current of the system to meet the needs of different operating conditions.

Benefits of technology

Parallel connection during discharge increases current sharing and extends battery life; series connection during charging increases voltage, shortens charging time, meets high-efficiency energy replenishment requirements, simplifies control logic, and improves system stability and safety.

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Abstract

The utility model relates to the technical field of lithium battery systems, in particular to an industrial vehicle lithium battery quick charging system, which comprises a first battery pack, a second battery pack and a relay group, and during discharging, the relay group can enable the first battery pack and the second battery pack to be connected in parallel; and during charging work, the relay group can enable the first battery pack and the second battery pack to be connected in series. After series connection, the total voltage of the system is improved, and a charging power supply with a higher voltage level can be connected, so that higher charging power is obtained under the same charging current, the charging time is remarkably shortened, and the requirements of frequent charging and high-efficiency energy complementation of vehicles are met.
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