Dual-Module Liquid Cooler Segmentation for Heat Cascade
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Solution Overview
Problem
Closed loop liquid coolers suffer from severe heat cascade effects and single-point failure issues due to interrupted liquid circulation when a pump fails, leading to reduced cooling efficiency and reliability.
Innovation Solution
A closed loop liquid cooler design featuring two interconnected liquid cooling modules with integrated pumps and heat exchangers, where the cooling reflux from one module inputs into the other, creating a redundant system that prevents heat cascade and ensures continuous circulation even if one pump fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If liquid flows through a plurality of heating elements in sequence, then the cooling capacity is increased, but the heat cascade effect causes temperature difference between elements and lowers system cooling efficiency
Solution Approach 1:
The system is divided into two independent liquid cooling modules, each with its own pump and heat exchanger. This segmentation allows each module to operate independently, eliminating the heat cascade effect that occurs when liquid flows sequentially through multiple heating elements in a single loop. Each module maintains its own circulation, preventing temperature differential issues while preserving enhanced cooling capacity.
Solution Approach 2:
The patent creates a redundant copy of the liquid cooling system by implementing two independent modules with identical components (pumps, heat exchangers, cooling liquid circulation paths). This copying approach allows the system to achieve the desired cooling capacity through parallel operation rather than sequential flow, thereby avoiding the heat cascade effect and maintaining high cooling efficiency.
2Reliability
If two independent liquid cooling circulation systems are used to cool respective chips, then the cooling redundancy is improved, but the system complexity increases
Solution Approach 1:
While maintaining two independent liquid cooling modules for redundancy, the patent merges the heat exchangers of both modules into a single integrated heat exchanger assembly. This combining approach reduces the number of separate components and connections required, thereby lowering system complexity while preserving the redundancy benefits of having two independent circulation paths with各自的 pumps.
3Device complexity
If a single pump is used in the liquid cooling system, then the device complexity is reduced, but the circulation is easily interrupted when the pump fails
Solution Approach 1:
The single pump is segmented into two separate pumps, each dedicated to one liquid cooling module. This segmentation ensures that if one pump fails, the other pump can continue to maintain circulation in its respective module, thereby ensuring circulation continuity and system reliability without requiring a complex redundant pump system across the entire loop.
Solution Approach 2:
The pump function is copied by implementing two independent pumps instead of one shared pump. Each pump independently drives the cooling liquid circulation in its own module, creating redundancy that prevents circulation interruption. This copying approach maintains relatively simple device complexity while dramatically improving reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design effectively mitigates heat cascade effects and ensures reliable cooling by maintaining circulation, enhancing overall cooling capability and reliability while achieving high economical efficiency.
Implementation Method 1
a first cold plate and a first pipeline unit; the second liquid cooling module comprises a second heat exchanger, a second pump body, a second cold plate and a second pipeline unit
Implementation Method 2
the first liquid cooling module comprises a first heat exchanger, a first pump body, a first cold plate and a first pipeline unit
Data Source
AI summary
A closed loop liquid cooler and an electronic device using the same. The closed loop liquid cooler includes: a first liquid cooling module and a second liquid cooling module, where a cooling reflux at an output end of the first liquid cooling module is outputted to a cooling liquid input end of the second liquid cooling module; and a cooling reflux at an output end of the second liquid cooling module is outputted to a cooling liquid input end of the first liquid cooling module.