Portable Thermal Shield Air Channel for Laptop Heat Management
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Solution Overview
Problem
Portable information handling systems face challenges in managing heat and power consumption due to reduced size, leading to inefficient cooling and reduced performance, as they struggle to balance thermal management with user comfort and system capabilities.
Innovation Solution
A system and method that detect the coupling or uncoupling of a thermal barrier to adjust thermal parameters, allowing increased internal temperatures and slower cooling fan speeds when a barrier is present, reducing dust accumulation and enhancing performance by integrating a conductive air channel for improved heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling airflow is increased to remove heat from processing components, then heat dissipation is improved, but power consumption increases and dust accumulates at cooling vents
Solution Approach 1:
The cooling system is segmented into two separate airflow paths: an internal cooling airflow for removing heat from processing components, and an external airflow path for removing heat from the housing. This segmentation allows each path to be optimized independently, reducing the total power consumption of cooling fans while maintaining effective heat dissipation.
Solution Approach 2:
A thermal barrier is introduced as an intermediary component between the internal components and the external housing. This thermal barrier selectively conducts heat away from components that need cooling while insulating other areas, enabling more efficient heat management and reducing the overall cooling power required.
2Productivity
If processing component capabilities are increased, then system performance is improved, but heat generation increases making the system uncomfortable for users
Solution Approach 1:
Different regions of the housing are assigned different thermal properties. Areas in contact with the user are thermally insulated to maintain comfortable temperatures, while areas near processing components are thermally conductive to facilitate heat removal. This local differentiation allows high-performance components to operate at elevated capabilities without compromising user comfort.
Solution Approach 2:
The housing is segmented into thermally distinct zones using thermal barriers that separate heat-generating components from user-contact surfaces. This enables the system to achieve higher overall performance by allowing localized heat management rather than uniformly limiting temperatures across the entire device.
3Volume of moving object
If housing size is reduced for portability, then mobility is improved, but effective cooling airflow becomes difficult to achieve
Solution Approach 1:
The cooling strategy transitions from relying solely on internal airflow convection to incorporating external conduction-based cooling. By attaching the portable system to external surfaces (such as a user's lap or a cooling surface), heat is removed through the housing walls in an external dimension, bypassing the need for large internal airflow paths and enabling effective cooling in compact form factors.
Solution Approach 2:
The housing walls themselves are used as thermal intermediaries for heat removal. By designing the housing with selective thermal conductivity and allowing contact with external surfaces, the housing becomes an active part of the cooling system, enabling efficient heat dissipation without requiring large internal cooling infrastructure.
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 approach increases system performance by reducing the need for CPU throttling, decreases power consumption and acoustic noise, and extends the lifespan of the cooling subsystem while providing user protection from excessive heat, enabling smaller, thinner, and lighter designs with optional thermal insulation.
Implementation Method 1
the bottom surface of the chassis has a conductive material to conducts thermal energy to the air channel
Implementation Method 2
A cooling fan operating in the information handling system pulls air through the air channel
Implementation Method 3
The air channel improves overall system cooling while reducing thermal energy exposure in areas proximate to an end user
Data Source
AI summary
An information handling system's thermal management is selectively altered by coupling a thermal barrier to the bottom surface of the information handling system chassis so that an air channel insulates against the passage of thermal energy from the bottom surface. A vent opening in a side of the thermal barrier allows airflow through the air channel to a vent opening of the information handling system. The airflow through the air channel cools the base of the thermal barrier so that an end user will experience reduced thermal energy if the information handling system rests on the end user, such as in the end user's lap.