Heating method of parallel battery pack, electronic equipment and energy storage system

By intelligently controlling the heating level of the main battery pack and dynamically adjusting the heating power, the problem of energy loss and low charging efficiency of parallel battery pack systems in low-temperature environments is solved, improving the heating efficiency and energy utilization of the battery pack and ensuring battery life and safety.

CN121769345APending Publication Date: 2026-03-31SHENZHEN POWEROAK NEWENER CO LTD
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Patent Information

Application Number
CN202511799224.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-02
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing parallel battery pack system heating solutions suffer from high energy loss, low charging efficiency, and poor user experience, especially affecting battery life and user experience in low-temperature environments.

Method used

By detecting the external power supply connection status of the main battery pack, the heating level of the secondary battery pack is dynamically adjusted. Based on feedback data and the energy relationship of the external power supply, intelligent heating control of the parallel battery pack is realized, including dynamic management of heating commands, level switching and exit commands.

Benefits of technology

It improves the heating efficiency and energy utilization of the battery pack, ensures battery life and safety, and solves the problems of low charging efficiency and cell damage in energy storage devices under low temperature conditions.

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Abstract

The embodiment of the invention discloses a heating method of parallel battery packs, electronic equipment and an energy storage system. The method comprises the steps of detecting a connection state of an external power supply and a parallel battery pack; when it is detected that the external power supply is connected, whether all slave battery packs in the parallel battery packs have heating requirements or not is judged; a plurality of heating gears are preset from the battery pack, each heating gear corresponds to one heating power, and the heating gears are sequenced according to the heating power; according to a preset priority, a heating instruction is sent to the to-be-heated battery pack, so that the to-be-heated battery pack is heated; switching a heating gear of the to-be-heated battery pack based on the relationship between the feedback data of the to-be-heated battery pack and the input energy of the external power supply; after adjustment of the heating gear is completed, heating is conducted for preset time; and after heating is completed, the steps are circulated. According to the embodiment, the slave battery pack is controlled through the main battery pack, the heating gear is dynamically adjusted, and the heating efficiency and the energy utilization rate of the battery pack can be improved.
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