Protective Device with Elastic Rotation Members for Drop Impact
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Solution Overview
Problem
Portable electronic devices, such as smartphones and tablets, are prone to damage when dropped due to lack of effective impact protection.
Innovation Solution
A protective device with a frame, bending members, rotation members, and elastic members is mounted on the device, where the elastic members drive the rotation members to extend and support the device upon impact, preventing damage to the outer surface and display screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective device is added to prevent damage during drops, then the protection capability is improved, but the device complexity increases
Solution Approach 1:
The protective device employs dynamic components including rotation members that can rotate between horizontal and vertical states, and bending members that can deform elastically. These dynamic elements allow the structure to adapt its configuration based on impact conditions, providing effective protection while maintaining a compact form when not in use.
Solution Approach 2:
The protective device is divided into multiple independent functional modules: frame members, bending members, rotation members, and elastic members. Each segment performs a specific function and can operate independently, allowing the complex protection mechanism to be built from simpler modular components that can be manufactured and assembled separately.
2Force
If elastic members and rotation members are used to support the device upon impact, then the impact absorption is improved, but the device complexity increases
Solution Approach 1:
The elastic members are pre-configured in a compressed or tensioned state within the frame structure, ready to provide cushioning force immediately upon impact. The rotation members are positioned in advance at specific angles so that when impact occurs, they can rapidly rotate to the vertical support position, providing beforehand prepared protection without requiring complex real-time control systems.
Solution Approach 2:
The protective mechanism operates autonomously through passive mechanical means. The elastic members automatically exert restoring forces when deformed by impact, and the rotation members naturally rotate to vertical positions due to gravitational and elastic forces without requiring sensors, motors, or external control systems. The structure serves itself by converting impact energy into useful protective actions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The protective device effectively absorbs and distributes the impact force, reducing the likelihood of damage to the electronic device's outer surface and display screen during drops.
Implementation Method 1
a first elastic member (140) is mounted on the frame (110)
Implementation Method 2
The protective device effectively absorbs and distributes the impact force
Data Source
AI summary
A protective device for a handheld electronic device includes a frame, at least one bending member, a first elastic member, and at least one rotation member. The frame is sheathed on an electronic device and protects the electronic device. The at least one bending member is mounted on the frame. The at least one rotation member is mounted under elastic rotational compression through the first elastic member and is latched with an end of the bending member. When the bending member is jarred to unlatch from the rotation member, the rotation member rotates out quickly and supports the electronic device.