一种集成三维均温板与液冷通道的复合散热管理方法

By integrating a three-dimensional vapor chamber and a liquid cooling channel into a composite heat dissipation management method, and utilizing the thermal resistance-temperature difference joint criterion and the contribution of tube unit temperature difference and axial temperature gradient, dynamic balance of the working fluid is achieved, solving the problem of working fluid distribution imbalance in the composite structure of the three-dimensional vapor chamber and liquid cooling channel, and improving the temperature uniformity and reliability of the system.

CN122172945BActive Publication Date: 2026-07-17CHONGQING YINGFAN TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING YINGFAN TECH CO LTD
Filing Date
2026-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the composite structure of the three-dimensional heat spreader and the liquid cooling channel has an imbalance in the distribution of the working fluid in the working fluid circulation management, which leads to the risk of local dry burning or liquid accumulation, and makes it difficult to achieve uniform temperature control in three-dimensional space under high heat flux density.

Method used

By integrating a three-dimensional vapor chamber and a liquid cooling channel into a composite heat dissipation management method, the circulation state is quickly identified using the thermal resistance-temperature difference joint criterion. The fault tube type is located by combining the tube unit temperature difference contribution and axial temperature gradient, and local flow regulation is performed. Furthermore, the fault mode is accurately distinguished by the response propagation delay and thermal response time constant, and a targeted regulation strategy is matched to achieve dynamic balance of the working fluid.

Benefits of technology

It significantly improves the temperature uniformity, reliability, and operation and maintenance efficiency of the three-dimensional heat dissipation plate and liquid cooling channel composite heat dissipation system under complex heat loads, avoids secondary imbalance caused by blind adjustment, and realizes a complete closed-loop management from rapid diversion and in-depth traceability to long-term self-correction.

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Abstract

本发明涉及芯片散热技术领域,尤其涉及一种集成三维均温板与液冷通道的复合散热管理方法,包括基于热源功率和散热需求温差获取系统总热阻,结合竖直管间最大温差确定三维均温板的循环状态;响应于三维均温板的循环状态,获取各竖直均温管的管单元温差贡献度和管轴向温度梯度,以基于管单元温差贡献度定位故障管类型;基于故障管类型结合管单元温差贡献度确定故障管是否存在蒸干风险和积液风险,调节故障管对应液冷通道局部流量;获取当前评估周期内的当期系统总热阻和当期竖直管间最大温差确定当前三维均温板的性能退化率,修正阈值。本发明通过分流工况差异化初级调节区分故障模式并匹配调节策略,实现故障定位与定量调节。
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