Side face direct cooling energy storage system

By setting up a side direct cooling energy storage system in the battery pack, the problem of low refrigeration efficiency of existing liquid-cooling units is solved, achieving more efficient cooling effect and lower energy consumption.

CN119695338AActive Publication Date: 2025-03-25清安储能技术(重庆)有限公司
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Patent Information

Application Number
CN202411893218.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-25
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

When refrigerating with battery packs, the existing liquid cooling unit has low refrigeration efficiency, poor refrigeration effect, and low refrigerant utilization rate.

Method used

A side direct cooling energy storage system is adopted. By setting up a direct cooling unit, a circulation pipe and a battery pack in the battery pack, the cooling tube is wound one by one along each battery module and in contact with both sides of each battery module. Refrigerant flows into the cooling tube through the inlet tube, and after passing through the battery pack, it flows back to the liquid cooling unit through the outlet tube.

Benefits of technology

The cooling effect is improved, the power and energy consumption of the compressor is reduced, the battery cell short circuit and shell corrosion caused by condensation water are avoided, and the uniformity of the refrigerant flow rate is improved.

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Abstract

The invention belongs to the technical field of energy storage equipment, and particularly relates to a side face direct cooling energy storage system which comprises a cabinet body, a direct cooling unit, a circulating pipeline and a battery pack, a battery cabin is arranged above a partition plate, an electrical cabin is arranged below the partition plate, the battery pack is arranged in the battery cabin, the direct cooling unit is arranged in the electrical cabin, and a plurality of battery modules are installed on a bottom plate. The upper cover is detachably connected with the bottom plate; the circulating pipeline comprises a liquid inlet pipe, a liquid outlet pipe, cooling pipes and switching structures, the cooling pipes are wound along each battery module one by one and are in contact with the two sides of each battery module, and the two ends of each side cooling pipe extend out of the upper cover and are respectively communicated with the liquid inlet pipe and the liquid outlet pipe through the corresponding switching structures; a refrigerant flows into the cooling pipe through the liquid inlet pipe, passes through the battery pack and then flows back to the liquid cooling unit through the liquid return pipe; the invention aims to improve the heat dissipation effect of the refrigeration system, reduce the condensation risk of the battery pack and simplify the installation process of the battery pack.
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