Heat Sink Channel Layout for Faster Topology Optimization
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Solution Overview
Problem
Existing heat sink designs struggle to efficiently adapt to the specific constraints of heat-generating components and their integration environments, often requiring repetitive iterations without guaranteed convergence to an optimal design.
Innovation Solution
A computer-implemented method for designing a heat sink that involves generating a mesh, identifying thermal spots, and imposing a channel connecting these spots to minimize thermal resistance and maximize uniformity by using topology optimization, with obstacles becoming fixed during the design process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If custom-made heat sinks are designed for each device, then heat dissipation performance is improved, but design time and complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-defining channel connections between inlet, outlet, and thermal spots before the topology optimization process begins. This preliminary configuration provides a head start to the optimization algorithm, reducing the number of iterations needed to converge to an optimal design while still achieving custom化的 heat dissipation performance for each device
Solution Approach 2:
The patent utilizes parameter changes by systematically varying design parameters such as channel dimensions, material properties, and geometric configurations during the topology optimization process. This allows the design to adapt to specific device requirements while maintaining computational efficiency through structured parameter exploration
2Reliability
If iterative design optimization is performed, then heat sink performance is improved, but convergence to optimal design is not guaranteed
Solution Approach 1:
By pre-establishing channel connections between inlet, outlet, and thermal spots, the patent provides the optimization algorithm with an initial feasible configuration. This preliminary action ensures that the iterative process starts from a valid design space, increasing the likelihood of convergence to an optimal solution while maintaining performance improvements
Solution Approach 2:
The patent implements feedback mechanisms through the topology optimization process, where design performance metrics (thermal resistance, temperature distribution) are continuously evaluated and fed back to guide further optimization iterations. This closed-loop approach ensures systematic improvement while monitoring convergence criteria
3Reliability
If thermal spots are identified and channels are imposed, then thermal resistance is minimized, but design flexibility is reduced
Solution Approach 1:
The patent applies local quality by identifying specific thermal spots on the heat-generating component and imposing cooling channels at these critical locations. This targeted approach minimizes thermal resistance where it matters most while allowing other regions to maintain design flexibility for different device configurations and constraints
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
The method ensures faster convergence to a design that meets pressure drop, thermal resistance, and uniformity constraints, resulting in an efficient heat exchange configuration tailored to the component's needs.
Implementation Method 1
The heat sink transfers thermal energy from a higher-temperature device to a lower-temperature fluid medium
Implementation Method 2
The heat sink is designed to maximize the heat transfer to the cooling medium surrounding it, such as the air
Data Source
AI summary
According to an embodiment a method is disclosed for designing a heat sink (500-508) comprising a container with means to guide a coolant from an inlet (100) to an outlet (200) designed to exchange heat with a component comprising the steps of generating a first mesh (600) comprising elements defining a discretized shape of a container in a massive state; generating a heat map of the container by imposing a thermal load of the component thereon thereby identifying thermal spots; repeatedly solving fluid flow equations and energy equations imposed on the first mesh through a topology optimization method by minimizing the heat sink (500-508) thermal resistance and/or maximizing the heat sink thermal uniformity; wherein the method further comprises the step of imposing a channel (400-402) on the first mesh (600) by connecting the inlet (100) with the outlet (200) via the thermal spots thereby identifying obstacles (300-302) within the first mesh (600) for the coolant; and wherein the solving step is up front performed on elements associated with the channel.