Vapor Chamber Edge Structure for Compact Strength and Heat Transport
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Solution Overview
Problem
Existing vapor chambers face challenges in achieving size reduction while maintaining mechanical strength, as size reductions lead to insufficient cooling performance and declining mechanical strength.
Innovation Solution
A vapor chamber design featuring a working fluid in an internal space between two metal plates, with extending parts that support the circumferential edge walls and include groove parts for enhanced heat transport, and a manufacturing method using laser processing to form these features, allowing for size reduction and improved mechanical strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the vapor chamber size is reduced to meet miniaturization demands, then the device can be smaller, but the mechanical strength declines
Solution Approach 1:
The vapor chamber is divided into multiple plate members (first plate member, second plate member, third plate member) that are joined together. This segmentation allows each plate to be thinner individually (enabling size reduction) while the combined structure maintains mechanical strength through the joining parts.
Solution Approach 2:
The vapor chamber uses a composite structure of multiple metal plates joined together, creating a composite material system that achieves both reduced individual component thickness (for miniaturization) and maintained overall mechanical strength through the assembled structure.
2Strength
If the circumferential edge joining part is made larger to improve mechanical strength, then the strength increases, but the device size increases
Solution Approach 1:
The joining part extends in the thickness direction (vertical dimension) rather than only in the horizontal plane. The first and second circumferential edge wall parts extend toward each other in the thickness direction, and the third plate member bridges them, providing strength through vertical integration rather than horizontal expansion.
Solution Approach 2:
The vapor chamber uses thin plate members joined together, where the joining structure utilizes the thickness direction to provide mechanical strength without requiring large horizontal dimensions. The thin plates are connected through vertical edge wall extensions and bridging elements.
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 achieves superior mechanical strength and size reduction while simplifying manufacturing and enhancing heat transport characteristics, allowing for effective cooling in compact electronic devices.
Implementation Method 1
a laser processing step of forming the joining part and the extending part by laser
Implementation Method 2
a vapor chamber includes a working fluid in an internal space formed between a first metal plate and a second metal plate
Implementation Method 3
a plurality of first tabular bodies arranged in a direction substantially orthogonal to both directions of an arrangement direction of the cover plate and the base plate, and an arrangement direction of an evaporation part and a condensation part
Data Source
AI summary
A vapor chamber includes a working fluid in an internal space formed between a first metal plate and a second metal plate. The first metal plate includes a plate part, and a first circumferential edge wall part which extends from a circumferential edge of the plate part toward the second metal plate. The second metal plate includes a plate part, and a second circumferential edge wall part which extends from a circumferential edge of the plate part toward the first metal plate. The vapor chamber includes a joining part and at least one extending part. The first circumferential edge wall part of the first metal plate and the second circumferential edge wall part of the second metal plate are joined by the joining part, and the extending part is joined with the joining part, and extends from the joining part.