Display Height Brake for Portable Information Handling System
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Solution Overview
Problem
Portable information handling systems typically sacrifice performance and ergonomics for portability, with limited display height adjustment and thermal management, leading to discomfort and reduced user interaction efficiency.
Innovation Solution
A portable information handling system that transforms from a clamshell to an all-in-one position by sliding the pivot axis towards the front side and extending a stand from the main housing, allowing the display to be elevated to a vertical plane, improving ergonomics and thermal transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display housing is fixed in a raised position relative to the main housing, then the display height is maintained for ergonomic viewing, but the system cannot transform between different positions (portability is reduced)
Solution Approach 1:
The hinge assembly incorporates a brake mechanism that can be dynamically engaged or disengaged. When disengaged, the display housing can move freely to transform between positions. When engaged, the brake locks the display housing in a fixed raised position for ergonomic viewing, resolving the contradiction between fixed height stability and positional versatility
Solution Approach 2:
The system changes the state parameter of the brake mechanism from engaged to disengaged based on operational mode. In portable mode, the brake is disengaged allowing full transformation. In viewing mode, the brake is engaged to maintain optimal display height, enabling the system to adapt between different operational requirements
2Stability of the object's composition
If a brake mechanism is added to maintain display height, then display position stability is improved, but device complexity increases
Solution Approach 1:
The brake mechanism is designed to be self-actuating through a release member that can be manually operated. The user simply presses the release member to disengage the brake for transformation, and the brake automatically re-engages when transformation is complete, maintaining display height without requiring additional motors or complex control systems
Solution Approach 2:
The release member acts as an intermediary between the user and the brake mechanism. This simple interface allows users to control the brake engagement without dealing with complex mechanisms directly, reducing the perceived complexity while maintaining functional stability
3Ease of operation
If the display housing slides forward to elevate the display, then ergonomic viewing is improved, but the pivot axis position changes affecting system geometry
Solution Approach 1:
The hinge assembly is segmented into multiple functional components: the brake mechanism for position locking, the release member for user control, and the pivot axis for rotation. This segmentation allows each component to perform its specific function independently, simplifying the overall design while achieving ergonomic display elevation through controlled sliding motion
Data Source
AI summary
A portable information handling system transforms from a clamshell configuration to an all-in-one configuration by removing a keyboard from a main housing, sliding the display housing in a guide formed under the keyboard and raising a rear side of the main housing to elevate the display. A brake interfaces with the display housing through the guide to lock the display at variable heights. A brake release selectively releases the brake to allow display height adjustment by adjusting the relative position of the display housing at the main housing.