A high-power DC motor dual-lithium battery alternating charge-discharge range-extending power supply system

By constructing a high-power DC motor dual-lithium battery alternating charge-discharge range-extending power supply system, and by monitoring and intelligently switching the lithium battery pack in real time, the high energy consumption and long-term battery life of the high-power DC motor are solved, ensuring the safe and efficient operation of the equipment in extreme environments.

CN121308223BActive Publication Date: 2026-05-26BEIJING ZHENGYI TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING ZHENGYI TECHNOLOGY CO LTD
Filing Date
2025-09-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional single-battery solutions cannot simultaneously meet the high energy consumption requirements of high-power DC motors and the endurance requirements of long-term operation. Furthermore, lithium batteries suffer severe performance degradation at low temperatures in northern regions and lack reliable safety guarantees when abnormal heating occurs.

Method used

The system employs a high-power DC motor and dual lithium battery alternating charge-discharge range-extending power supply system. By constructing a system architecture that includes a data acquisition module, an analysis module, a control module, and an adaptive module, it monitors the battery pack's charge and temperature in real time, enabling intelligent switching and charging management between the main and backup batteries, and ensuring the battery operates safely and reliably under extreme conditions.

Benefits of technology

It achieves stable power supply and long battery life for devices under extreme environments, avoids safety hazards caused by abnormal battery temperature, extends battery life, and optimizes energy utilization efficiency.

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Abstract

This invention relates to the field of battery charging and discharging technology, and more particularly to a high-power DC motor dual-lithium battery alternating charge-discharge range-extending power supply system, comprising: a charger, a relay group, a battery pack, and a controller. The controller's acquisition module collects the charge level and operating temperature of the dual lithium batteries in real time; an analysis module synthesizes these parameters into characteristic defined values; the control module automatically controls the relay group accordingly to achieve intelligent switching between the main working battery and the backup working battery, and intelligently decides to start the charger to charge the removed battery based on its charge level; the adaptive module monitors the backup battery's charge level to ensure the system can safely and efficiently cycle between the two batteries. This invention solves the inherent defects of single-battery systems in terms of range, safety, and environmental adaptability, achieving a balance between device power, range, safety, and lightweight design.
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