Heat Spreader Structure with Segmented Capillary Layers for Flexible Shaping
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Solution Overview
Problem
Conventional heat spreaders are difficult to bend and shape without damaging internal capillary structures, leading to inefficiencies in heat dissipation and increased manufacturing costs due to complex processes.
Innovation Solution
A heat spreader structure comprising a main body with distinct capillary structures on circulation and connection areas, allowing for flexible bending and shaping without damaging internal structures, through a manufacturing method involving preparation, mating, vacuuming, and sealing of board bodies with capillary structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the heat spreader is bent or formed with a special configuration to adapt to the heat source, then the adaptability and heat dissipation efficiency are improved, but the internal capillary structure may be damaged
Solution Approach 1:
The heat spreader is divided into multiple layers: upper cover body, lower cover body, and intermediate layer. The capillary structure is confined to the intermediate layer, which remains flat and intact, while the upper and lower cover bodies are bent to adapt to the heat source configuration. This segmentation allows the heat spreader to achieve the desired shape without damaging the capillary structure.
Solution Approach 2:
An intermediate layer is introduced between the upper and lower cover bodies to house the capillary structure. This intermediate layer acts as a mediator that protects the capillary structure from deformation during the bending process, while still allowing the outer cover bodies to be shaped as needed for heat dissipation.
2Shape
If the conventional heat spreader is bent and shaped, then the manufacturing cost and process complexity increase
Solution Approach 1:
The manufacturing process is segmented into independent steps: first bending the upper and lower cover bodies to the desired shape, then forming the capillary structure in the intermediate layer, and finally assembling the components. This segmentation simplifies the overall process compared to attempting to bend the entire assembled heat spreader, reducing manufacturing complexity and cost.
3Shape
If the conventional heat spreader is bent and shaped, then the manufacturing time increases
Solution Approach 1:
The upper and lower cover bodies are bent to the desired shape in advance, before the capillary structure is formed and assembled. This preliminary action allows parallel processing of different components, reducing the total manufacturing time compared to assembling first and then attempting to bend the complete structure.
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
Enables flexible shaping and reduces manufacturing time while maintaining capillary structure integrity, enhancing heat dissipation efficiency and reducing production costs.
Implementation Method 1
the heat spreader has an internal capillary structure... affect the vapor/liquid circulation efficiency of the working fluid
Implementation Method 2
vacuuming the chamber of the heat spreader
Data Source
AI summary
A heat spreader structure and a manufacturing method thereof. The heat spreader structure includes a main body. The main body includes a first board body and a second board body corresponding to the first board body. The second board body is mated with the first board body to form the main body. The main body has a circulation area and a connection area. The circulation area is connected with the connection area to together define a chamber in which a working fluid is contained. The circulation area has a first capillary structure, while the connection area has a second capillary structure. In manufacturing, the heat spreader structure can be freely bent and shaped without damaging the internal capillary structures.