Soaking type liquid cooling system of power battery box array

By setting a left-rotating heat exchanger cylinder and a right-rotating heat exchanger cylinder in the liquid-cooled battery box, combined with the spiral hydraulic drive blade and transition tube design, the problem of decreasing heat absorption efficiency of the coolant on the cooling path is solved, and the uniform cooling effect in the battery box is achieved.

CN120280603AActive Publication Date: 2025-07-08YANCHENG INST OF IND TECH
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Patent Information

Application Number
CN202510425935.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2025-07-08
Estimated Expiration
2045-04-07

AI Technical Summary

Technical Problem

The heat absorption efficiency of the coolant on the extended path of the cooling path gradually decreases, resulting in the better the cooling effect of the battery cell closer to the liquid inlet end, and the worse the cooling effect of the battery cell farther away from the liquid inlet end, resulting in uneven cooling efficiency.

Method used

The homogenized liquid-cooling system adopts a power battery box array. By setting a left-rotated heat exchanger and a right-rotated heat exchanger in the liquid-cooled battery box, the cooling liquid forms a waist-shaped closed-loop homogenized oil flow in the liquid-cooled battery box. Combined with the design of the transition tube and the introduction and outlet tubes, the uniform distribution of the coolant in the battery box and the compensation of heat absorption efficiency is achieved.

Benefits of technology

The uniform heat absorption effect of the coolant in the battery box is achieved, and the problem of reducing heat absorption efficiency caused by the increase in the coolant flow stroke is eliminated, ensuring the consistency of the cooling effect of each part in the battery box.

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Abstract

The invention discloses a soaking type liquid cooling system of a power battery box array. The soaking type liquid cooling system comprises liquid cooling battery boxes arranged along a linear array, a cold oil leading-in pipe, a hot oil leading-out pipe and a transition pipe, the cooling liquid from the cold oil leading-in pipe sequentially flows through the left parts of the liquid-cooled battery boxes and then flows into one end of the transition pipe, and the cooling liquid led out from the other end of the transition pipe sequentially flows through the right parts of the liquid-cooled battery boxes and then is discharged through the hot oil leading-out pipe; the problem that the heat absorption efficiency of the cooling liquid on the extending path of the cooling path is gradually reduced is solved.
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