Modular External Frame for Mobile Computing Device Protection
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Solution Overview
Problem
Mobile computing devices face challenges with display and touch screen panels prone to scratching and damage, which are protected by device housings that increase size, complexity, and cost, and complicate servicing.
Innovation Solution
A U-shaped external frame member is removably affixed to the device housing, featuring a retaining bezel that extends over the perimeter upper edge to secure the display module cover, providing protection against shocks and scratches while allowing for easy servicing by removing the clamping force and exoframe without dismantling the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display module is mounted within the device housing to protect it, then the display module is protected from damage, but the device housing increases in size, complexity and cost
Solution Approach 1:
The device housing is segmented into a permanent housing portion and a removable external frame member. The external frame member can be detached to access the display module, while the permanent housing remains intact. This segmentation allows protection during normal use while enabling easy servicing without dismantling the entire housing structure.
2Reliability
If the display module is mounted within the device housing to protect it, then the display module is protected from damage, but servicing of the device becomes more complex and time-consuming
Solution Approach 1:
The external frame member is designed as a separate, removable component that provides protection during normal operation but can be quickly detached to access the display module for servicing. This segmentation eliminates the need to dismantle the entire housing structure for maintenance.
Solution Approach 2:
The external frame member transitions from a fixed protective state during normal use to a removable state during servicing. The frame can be detached by releasing retaining features (such as clips or latches), allowing dynamic access to the display module without permanent structural changes.
3Reliability
If a protective housing is used for the display module, then the display module is protected from scratching and cracking, but the size of the device housing increases
Solution Approach 1:
The external frame member provides protective coverage only where the display module is located, rather than enclosing the entire device. This localized protection approach maintains the compact overall device size while providing adequate protection for the vulnerable display area.
Data Source
AI summary
A mobile computing device includes: a device housing including a base, a perimeter wall extending from the base to a perimeter upper edge and having a forward section and a rear section, and an external frame member including: (i) a U-shaped wall removably affixed to the forward section of the perimeter wall and terminating at the rear section of the perimeter wall; and (ii) a retaining bezel extending from the U-shaped wall over the perimeter upper edge.