Hyperbaric and Evacuative Fan Cooling System for Portable Devices
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Solution Overview
Problem
Portable information handling systems face challenges in maintaining component operating temperatures and chassis surface temperatures within safe limits due to heat buildup, which restricts processing power and battery life, especially in compact designs where airflow is restricted.
Innovation Solution
A cooling system that divides the chassis into zones using a pressure barrier, with evacuative fans for cooling components and a hyperbaric fan for increasing air pressure to cool the chassis, allowing independent operation of fans to manage temperature and airflow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single cooling system is used for both components and chassis, then device complexity is reduced, but component operating temperatures and chassis surface temperatures cannot be independently controlled
Solution Approach 1:
The cooling system is segmented into two independent subsystems: a first cooling subsystem with a first fan for cooling components, and a second cooling subsystem with a second fan for cooling the chassis. This segmentation allows independent temperature control for each zone, resolving the contradiction between system simplicity and temperature control precision.
Solution Approach 2:
Different cooling strategies are applied to different zones: the first fan provides localized cooling for heat-generating components, while the second fan provides generalized cooling for the chassis. This local quality approach enables tailored temperature management for each region's specific thermal requirements.
2Volume of moving object
If compact chassis design is used, then portability is improved, but airflow is restricted causing heat buildup
Solution Approach 1:
The compact chassis is divided into multiple thermal zones using pressure barriers, with dedicated cooling fans for each zone. This segmentation allows efficient heat removal from components despite the limited overall chassis volume, maintaining portability while preventing heat buildup.
Solution Approach 2:
Pressure barriers are introduced as intermediary structures to direct and control airflow between different zones within the compact chassis. These barriers create distinct pressure zones that guide cooling air to where it is needed most, overcoming the airflow restrictions imposed by the compact design.
3Productivity
If processing power is increased, then performance is improved, but heat buildup increases restricting further power increases
Solution Approach 1:
The cooling system is segmented into specialized zones with dedicated fans, allowing each high-power component to have targeted cooling. This enables higher processing power by efficiently managing the heat generated by each component independently, rather than relying on a single general cooling approach.
Solution Approach 2:
The system dynamically adjusts cooling parameters (fan speeds, airflow distribution) based on thermal conditions and processing requirements. This allows the system to maintain optimal temperatures even at high processing power levels by adapting the cooling capacity to match the heat generation.
4Use of energy by moving object
If battery life is extended by reducing power consumption, then energy efficiency is improved, but cooling capability is reduced
Solution Approach 1:
The cooling fans operate periodically or at variable speeds based on thermal conditions rather than running continuously at full power. This periodic or modulated operation reduces overall energy consumption while still maintaining adequate cooling capability when needed, extending battery life without sacrificing temperature control.
Solution Approach 2:
The cooling system dynamically adjusts fan speed and airflow parameters based on real-time temperature sensing and processing load. This parameter adjustment allows the system to consume less power during low-thermal-load conditions while maintaining sufficient cooling capability when processing power increases, optimizing the balance between energy efficiency and cooling performance.
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 component operating temperatures below maximum limits, increases processing power, extends battery life, and reduces chassis surface temperatures, enhancing overall performance and user safety.
Implementation Method 1
a first fan configured for cooling components of the information handling system in the first zone
Implementation Method 2
a second fan in the second zone for cooling the chassis... a hyperbaric fan for increasing air pressure to cool the chassis
Implementation Method 3
a pressure barrier formed to divide the chassis into a plurality of zones... the pressure barrier ensures airflows remain separate
Data Source
AI summary
A system and method for cooling components and a chassis in a portable information handling system includes a pressure barrier that divides the chassis into a plurality of zones, an evacuative fan in a first zone to generate airflow across components to cool the components and a hyperbaric fan in a second zone to increase air pressure in the second zone. The pressure barrier may provide thermal isolation, acoustic dampening and electromagnetic insulation. A controller communicatively coupled to the fans can operate each fan independently to cool components for improved performance and maintain a surface temperature of the chassis below a temperature for user comfort.