Water-cooled plate and battery module

By employing right-angled fins and secondary cooling channels in the water-cooled plate, the heat transfer path is enhanced and the structural strength is improved, solving the problems of low heat transfer efficiency and easy fin breakage in the battery cell, and achieving uniform and stable battery cell temperature.

CN224481003UActive Publication Date: 2026-07-10CHUNENG AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUNENG AUTOMOBILE CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing water-cooled plates have low heat transfer efficiency in battery cells, large temperature differences, poor temperature uniformity, and the fins are prone to fatigue fracture under vehicle vibration.

Method used

Design a water-cooled plate with right-angled fins and secondary cooling channels. The fins are arranged parallel to the main cooling channels to increase the heat transfer path. The structural strength is improved by integral molding and heat transfer reinforcement sheets. A soft heat-conducting part is set between the fins and the battery cell to fix the battery cell.

Benefits of technology

It improves the heat transfer efficiency and temperature uniformity of the battery cell, reduces the risk of fin breakage under vibration, and ensures the stability of the battery cell under acceleration and emergency stop conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of battery technology, and more particularly to a water-cooled plate and a battery module. The water-cooled plate includes a main body and several fins vertically disposed on the main body. The main body includes several parallel main cooling channels and several secondary cooling channels connecting the main cooling channels. The fins include right-angled fins, each comprising an integrally formed first fin and a second fin. The first fin is mounted parallel to the main cooling channels, and the second fin is mounted parallel to the secondary cooling channels. This application utilizes the mutual counter-bending moment generated by the first and second fins to reduce the stress on the root of the first or second fin, thereby reducing the problem of fin breakage due to the driving force of the battery cell under vehicle vibration conditions.
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