Rotatable Fan Outlet for Dynamic Airflow Direction

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Solution Overview

Problem

Current thermal design in portable information handling systems often relies on fixed solutions tailored to specific scenarios, resulting in inefficiencies as additional fans remain inactive during varying user scenarios.

Innovation Solution

An air mover assembly with a rotatable outlet is introduced, featuring an enclosure base, gear, and outlet frame that can rotate to change airflow direction and speed, allowing the system to cool different areas based on specific operating conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If fixed thermal design solutions are used for specific scenarios, then the system can be simplified and manufactured easily, but additional fans remain inactive during varying user scenarios resulting in thermal management inefficiency

Engineering Contradiction:
Improvethermal design simplicityVSAvoidthermal management efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent applies the dynamics principle by implementing a rotatable outlet frame that can dynamically change airflow direction based on different user scenarios. The outlet frame rotates to redirect airflow between different areas of the portable information handling system, allowing a single fan to adapt to varying thermal requirements instead of remaining fixed for specific scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies the universality principle by designing a single fan system with rotatable outlet that can serve multiple cooling functions. The outlet frame can be positioned to cool different areas of the device, making one fan capable of handling various user scenarios that would traditionally require multiple dedicated fans.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple fans are added to handle different user scenarios, then thermal management coverage is improved, but device complexity and power consumption increase

Engineering Contradiction:
Improvethermal management coverageVSAvoidfan system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses a single dynamic fan system with a rotatable outlet frame instead of multiple static fans. The outlet frame can rotate to direct airflow to different areas, providing comprehensive thermal management coverage while maintaining simpler device architecture and lower power consumption compared to multiple fans.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent merges the functions of multiple fans into a single fan system with a rotatable outlet. By combining multiple cooling functions into one adaptable component, the system achieves comprehensive thermal management coverage without increasing device complexity or power consumption.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If multiple fans are added to handle different user scenarios, then thermal management coverage is improved, but power consumption increases

Engineering Contradiction:
Improvethermal management coverageVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent combines multiple fan functions into a single fan with a rotatable outlet frame. This merging allows one fan to provide comprehensive thermal management coverage across different user scenarios, eliminating the need for multiple fans and thereby reducing overall power consumption while maintaining reliable cooling.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rotatable outlet frame enables a single fan to dynamically adapt to different thermal requirements, providing comprehensive coverage without the energy cost of running multiple fans simultaneously. The system achieves improved thermal management coverage while reducing power consumption through dynamic airflow redirection.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250142768A1Rotatable fan outlet for different user scenarios
Publication Date: 2025.05.01 DELL PROD LP
  • US20250142768A1 patent drawing
  • US20250142768A1 patent drawing
  • US20250142768A1 patent drawing

AI summary

An information handling system includes an air mover and a management controller configured to determine an airflow direction of the air mover. The air mover includes an enclosure base and a gear disposed within the enclosure base. The gear is configured to rotate an outlet frame, and the outlet frame is configured to rotate within the enclosure base. The outlet frame includes a nozzle structure that is configured to guide the airflow direction according to a determination of the management controller.