Mid-frame PCM Thermal Management for Slim Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile computing devices face challenges in heat dissipation due to their slim form factor, leading to performance throttling which negatively impacts user experience, and existing thermal management solutions using phase change materials are either inefficient or increase device height.
Innovation Solution
Integrating heat management features directly into a support structure or panel using phase change materials within a metal frame, allowing for efficient heat absorption and distribution without protruding beyond the device's profile, thus delaying performance throttling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If performance throttling is used to reduce heat, then heat generation is reduced, but user experience deteriorates due to reduced performance levels
Solution Approach 1:
The patent utilizes phase change materials (PCM) that undergo solid-liquid phase transition at specific temperatures to absorb excess heat from processing components. The PCM absorbs latent heat during phase change, maintaining operating temperatures without requiring performance throttling, thus preserving high performance levels while managing heat effectively.
2Temperature
If heat sink fins with phase change material are used, then heat absorption is improved, but device height increases due to the fin structure
Solution Approach 1:
The patent integrates the phase change material directly into the support frame structure, merging the thermal management function with the structural support function. This eliminates the need for separate heat sink fins, maintaining the slim device profile while providing effective heat absorption through the PCM embedded in the frame.
Solution Approach 2:
The support frame serves dual purposes: providing structural support and acting as a thermal management component through integrated phase change material. This multi-functionality eliminates the need for additional height-consuming heat dissipation structures, as the frame simultaneously supports the device and absorbs heat.
3Strength
If phase change material is mixed with structural materials, then structural effect is achieved, but heat absorption efficiency decreases due to less ideal thermal properties
Solution Approach 1:
The patent combines the structural frame and phase change material into a single integrated component, where the PCM is embedded within or forms part of the support frame structure. This merging allows the structure to provide both mechanical support and optimal heat absorption without the performance degradation associated with mixing PCM with suboptimal structural materials.
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 solution maintains isothermal conditions for longer durations, allowing for extended high-performance usage while maintaining the device's slim profile and reducing the risk of heat-related performance throttling.
Implementation Method 1
the phase change material absorbs the heat produced by the processing components. When the heat exceeds the melting point of the phase change material, the phase change material melts to absorb additional heat
Implementation Method 2
The heat absorption of the support structure is improved through the integration of the heat management features, since the features will typically have significantly higher latent heat capacitance than the composition of the underlying frame/support structure
Implementation Method 3
heat produced during the operation of the processing components in the computing device is absorbed by heat management features integrated within the mid-frame
Data Source
AI summary
The invention is directed to a novel solution to providing heat management and cooling to electronic devices. According to various embodiments, heat produced during the operation of the processing components in the computing device is absorbed by heat management features integrated within a supporting mid-frame. The heat management features include phase changing materials that allow the processing components to be kept at a isothermal state through changes in phase, thereby prolonging the duration of time in which the processing components can operate at high performance levels without the need to throttle the performance.