Movable Protective Member for Electronic Device Drop Protection
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Solution Overview
Problem
Existing electronic devices lack effective protection against drops, which can damage the display assembly and rear cover, and existing solutions compromise aesthetics and usability.
Innovation Solution
An electronic device design featuring a middle frame with a protective member that moves to cover the display assembly and rear cover during drops, utilizing a sensor and driving assembly to adjust its position based on the falling component, ensuring protection while maintaining aesthetics and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective member is added to protect the display assembly and rear cover during drops, then the anti-dropping performance is improved, but the device complexity increases
Solution Approach 1:
The protective member is designed to be movable rather than fixed, allowing it to dynamically adjust its position between a retracted state (flush with outer surfaces) and an extended protection state. This dynamic capability enables the device to provide protection only when needed, reducing structural complexity while maintaining improved anti-dropping performance.
Solution Approach 2:
The protective member is divided into distinct functional segments: a front portion that protects the display assembly and a rear portion that protects the rear cover. This segmentation allows each portion to be optimized independently and simplifies the overall structure by focusing protection where needed rather than requiring a comprehensive protective enclosure.
2Reliability
If the protective member is always extended to provide maximum protection, then the anti-dropping performance is improved, but the aesthetics and usability are compromised
Solution Approach 1:
The protective member transitions from a static extended position to a dynamic system that can retract and extend as needed. This allows the device to maintain sleek aesthetics during normal use while providing maximum protection during drops, resolving the contradiction between protection and usability.
Solution Approach 2:
The protective member operates in periodic cycles: remaining retracted during normal periods (maintaining aesthetics) and extending during drop events (providing protection). This periodic action pattern allows the system to satisfy both aesthetic requirements and protection requirements at different times.
3Ease of operation
If the protective member is made movable to maintain aesthetics, then the usability is improved, but the reliability during drops may be reduced
Solution Approach 1:
The system uses sensors to detect drop conditions in advance and triggers the protective member to extend before actual impact occurs. This preliminary action ensures that protection is in place when needed, maintaining reliability despite the protective member being movable and retracted during normal use.
Solution Approach 2:
The system incorporates sensors that provide feedback about drop conditions, which then control the actuation of the protective member. This feedback mechanism ensures that the protective member extends reliably in response to detected drops, maintaining protection effectiveness while allowing the member to remain retracted during normal operation for aesthetic purposes.
Data Source
AI summary
An electronic device includes a middle frame, a display assembly, a rear member, and a protective member. The middle frame includes a sidewall disposed in an encircled manner; the display assembly is located at a front side of the middle frame; the rear member is located at a back side of the middle frame; the protective member is movably disposed on the sidewall of the middle frame. In an initial state, a front end and a rear end of the protective member are respectively lower than or flush with a surface of the display assembly or the rear member. The protective member can move toward the back side of the middle frame from the initial state to enable the rear end of the protective member to go beyond the rear member so as to protect the rear member when the electronic device falls off.