Fanless Electronic Device with Phase Change Material Microcapsule Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Fanless thin client systems experience inadequate cooling, leading to elevated temperatures on the top plate due to insufficient heat dissipation, which can result in overheating issues.
Innovation Solution
The implementation of an electronic device design featuring a case with airflow guiding structures, including heat sinks and a phase change material microcapsule layer, which directs airflow through side holes instead of solely relying on top holes for exhaust, thereby distributing heat dissipation and maintaining the top plate temperature within standard limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a fanless system is used to reduce the overall size of the thin client, then the device size is reduced, but the cooling rate becomes insufficient leading to heat accumulation in the top plate
Solution Approach 1:
The exhaust function is segmented into two separate paths: top holes and side holes. The airflow guiding structure divides the internal airflow, directing part of it through side holes to exit the case laterally, while the remaining air continues to the top holes for vertical exhaust. This segmentation of the exhaust function allows heat to be dissipated through multiple directions, preventing heat accumulation in the top plate while maintaining the compact fanless design.
2Device complexity
If all hot air is exhausted through the top holes, then the exhaust function is simple, but the top plate temperature becomes higher than the standard
Solution Approach 1:
The airflow guiding structure serves as an intermediary component between the heat sinks and the exhaust openings. It intercepts the rising hot air current and redirects a portion of it toward the side holes, while allowing the remainder to continue to the top holes. This intermediary structure enables sophisticated airflow management without requiring complex mechanical components, resolving the contradiction between structural simplicity and temperature control.
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 reduces the top plate temperature by redirecting airflow through side holes, ensuring efficient heat dissipation and preventing overheating, while maintaining a compact form factor.
Implementation Method 1
the phase change material microcapsule layer includes a plurality of phase change material microcapsules, each of the phase change microcapsules includes a capsule shell and a capsule core, the material of the capsule shell is high polymers, and the material of the capsule core is a phase change material
Implementation Method 2
a melting point of the capsule core is from 20° C. to 75° C.
Data Source
AI summary
An electronic device includes a case, a control module, a plurality of heat sinks and at least one airflow guiding structure. The case includes a bottom plate, a top plate, and at least one side plate. The bottom plate has a plurality of bottom holes for guiding air into the case. The top plate has a plurality of top holes for exhausting air in the case. The side plate connects the top plate and the bottom plate and has a plurality of side holes for exhausting air in the case. The control module is disposed in the case. The heat sinks are thermally connected to the control module. The airflow guiding structure is disposed between the heat sinks for guiding a part of the air in the case to the exterior of the case through the side holes.