Door Cover Stop Structure for Impact-Resistant Mobile Expansion Modules
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Solution Overview
Problem
Conventional mobile electronic devices with expansion units are prone to malfunction or damage due to collisions and falls, as the functional modules retract under external forces.
Innovation Solution
Incorporating a stop element within the expansion unit that abuts against the functional module to prevent retraction and protect it from external forces, combined with a waterproofing structure to enhance durability and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an expansion unit is added to expand functions, then the functionality of the mobile electronic device is improved, but the device becomes susceptible to collision and fall damage
Solution Approach 1:
The stop element is pre-installed on the door cover to provide preliminary protection against the functional module retracting during collision or fall. This preliminary anti-action prevents the harmful retraction movement before it can occur, thereby protecting the functional module while maintaining the expansion unit's functionality.
2Ease of operation
If the functional module is made retractable for operation, then the ease of operation is improved, but the reliability under external force deteriorates
Solution Approach 1:
The stop element provides preliminary protection by preventing the functional module from retracting under external force during collision or fall. This allows the module to remain accessible for operation while being protected from harmful retraction movements caused by external impacts.
Data Source
AI summary
A mobile electronic device includes a main framework, a back cover, a door cover, a functional module, a stop element and a stopping member. The back cover covers the main framework and has an expansion window. The door cover covers the expansion window. The functional module is disposed on an inner side of the door cover and electrically connected to a motherboard in the main framework. An operation interface corresponding in position to an outer side of the door cover is disposed on one side of the functional module. One side and the other side of the functional module oppose each other. The stop element is disposed on the inner side of the door cover, and abuts against the functional module. The stopping member is disposed on the inner side of the door cover.