Grooved Cooling Jacket Base with Bonded Cover for Thermal Management
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Solution Overview
Problem
Existing cooling jackets for electronic components face a trade-off between effective heat dissipation and structural strength, as thinning the portion in contact with heat-generating components to enhance cooling can lead to insufficient strength and deformation.
Innovation Solution
A cooling jacket design featuring a base with parallel grooves on its surface and a cover that bonds over these grooves, allowing liquid coolant to flow through, maintaining the base's thickness while reducing thermal resistance and enhancing cooling efficiency without compromising structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the base is thinned to bring coolant closer to heat-generating component, then cooling efficiency is improved, but structural strength deteriorates
Solution Approach 1:
The invention transitions from planar cooling to three-dimensional cooling by forming grooves that extend into the base thickness. This allows the coolant to access heat-generating components at multiple depth levels, achieving effective cooling without requiring the entire base to be thinned, thus maintaining structural strength while improving thermal contact.
Solution Approach 2:
The base is segmented into multiple cooling zones through the formation of parallel grooves. Each groove creates an independent cooling channel that can be optimized for specific heat-generating components. This segmentation allows selective thinning only where grooves are formed, preserving structural integrity in non-cooled regions while achieving effective cooling where needed.
2Temperature
If grooves are formed deeper in the base, then thermal resistance is reduced, but manufacturing complexity increases
Solution Approach 1:
Instead of forming grooves through the entire base thickness (excessive action), the invention forms grooves to a partial depth that is sufficient to reach heat-generating components. This partial action reduces manufacturing complexity and material removal while achieving the necessary thermal contact, avoiding the excessive complexity of full-thickness groove formation.
Solution Approach 2:
The groove depth parameter is optimized to balance thermal performance and manufacturing feasibility. By controlling groove depth to extend only to the level of heat-generating components rather than through the entire base, the invention achieves effective cooling while maintaining manufacturability and structural integrity.
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 design effectively reduces thermal resistance by bringing the coolant closer to the heat-generating component while maintaining the base's thickness, thereby improving cooling efficiency and structural strength, with estimated thermal resistance reduction of 20% to 70% by minimizing the distance between the coolant flow and the component.
Implementation Method 1
a base 2 that forms a portion that is in contact with heat-generating component 51... effectively reduces thermal resistance by bringing the coolant closer to the heat-generating component
Implementation Method 2
liquid coolant circulates... allowing liquid coolant to flow through... improving cooling efficiency
Data Source
AI summary
A cooling jacket includes, a base having a portion that is in contact with a heat generating component, a plurality of grooves formed on a surface of the base, each of the plurality of grooves that is arranged in parallel each other, and a cover that is in contact with an upper end of each of fins formed by the plurality of grooves on the same plane as the surface of the base. Each of the plurality of grooves has curved bottom surfaces provided in both end portions thereof, and is shallower toward the end portions thereof. The cover is bonded to the base in a state of covering all of the plurality of grooves.