Power storage circuit and battery pack
By introducing an equalization management unit into each cell group to independently control voltage equalization, the problems of complexity and high cost of cell voltage equalization in traditional methods are solved, and circuit structure is simplified and cost is reduced.
CN224367554UActive Publication Date: 2026-06-16HANGZHOU XUZHI TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XUZHI TECHNOLOGY CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-16
AI Technical Summary
Technical Problem
Traditional lithium battery cell voltage balancing control methods require separate data acquisition and balancing switches, which increases system complexity and cost.
Method used
Each cell group is assigned a separate equalization management unit, which independently controls voltage balancing, reducing the load on the microcontroller and simplifying the circuit structure.
Benefits of technology
It simplifies the circuit structure, reduces system complexity and overall cost, and improves the voltage balancing efficiency of the battery pack.
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Smart Images
Figure CN224367554U_ABST
Abstract
The application discloses a kind of battery storage circuits and battery pack, the battery storage circuit includes: multiple cell groups, multiple equalization management units, microcontroller, wherein each cell group is formed by a plurality of cell monomer in series, each cell group is connected with one equalization management unit, each equalization management unit manages the equalization of corresponding cell group, the first end of equalization management unit is connected with microcontroller, the second end of equalization management unit is connected with the positive pole of corresponding cell group, the third end of equalization management unit is connected with the first end of equalization switch, the second end of equalization switch is grounded, the third end of equalization switch is connected with the equalization loop control end of microcontroller, the fourth end of equalization management unit is connected with the corresponding equalization unit control end of microcontroller.By the above-mentioned mode, improve equalization circuit and equalization detection logic, AD acquisition and equalization opening control are combined in a pin, simplify circuit structure, reduce system complexity, to reduce overall cost.
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