A new energy battery cooler

By introducing a cooling flow guiding mechanism into the battery cooler and utilizing the synergistic effect of memory valve plates and phase change materials, adaptive flow guiding and enhanced heat dissipation of the battery pack are achieved. This solves the problem of insufficient coolant flow in liquid-cooled radiators under high heat loads, thereby improving battery safety and lifespan.

CN121332029BActive Publication Date: 2026-07-03GUANGDONG HENGTAO NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG HENGTAO NEW ENERGY TECHNOLOGY CO LTD
Filing Date
2025-10-24
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing liquid cooling radiators cannot adaptively adjust the coolant flow rate during high-rate discharge or fast charging, resulting in insufficient local temperature rise, increased temperature difference between cells, and impact on battery consistency and lifespan.

Method used

A cooling flow guiding mechanism is adopted, including a contact shell, a cooling component and a heat conduction component. It utilizes a composite layer of shape memory alloy memory valves and phase change material microgrids to achieve adaptive flow guiding and enhanced heat dissipation. The coolant flow rate is adjusted by the deformation of the memory valves, and a moisture absorption module is combined to prevent condensation droplets from adhering.

Benefits of technology

It achieves dynamic temperature balance of the cells under high heat load conditions, prevents condensation droplets from adhering, improves the safety and reliability of the battery pack, and enhances the uniformity of temperature difference between cells and their lifespan.

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Abstract

This invention relates to a new energy battery cooler, belonging to the field of new energy vehicle battery cooling technology. The new energy battery cooler includes a battery base, a controller, a protective shell, and a battery pack. The controller and protective shell are fixedly installed on the top of the battery base, and the battery pack is disposed inside the protective shell. A cooling flow guiding mechanism is included, comprising a contact shell, a cooling component, and a heat-conducting component. The contact shell is fixedly installed on the outside of the battery pack. By setting a cooling flow guiding mechanism on the outside of the battery pack, a passive adaptive flow guiding function not found in traditional liquid cooling structures is achieved. A composite layer of shape memory alloy memory valves and phase change microgrids is introduced into the cooling channel. When the battery pack locally heats up, the phase change layer absorbs and diffuses heat, while the memory valves deform to expand the channel cross-section, causing the coolant to automatically increase flow to the hot spot area to enhance heat transfer. This dynamically adjusts the local cooling capacity and significantly improves temperature uniformity.
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Citation Information

Patent Citations

  • CN118248994A