Gravity Center Adjustable Device for Drop Protection
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Solution Overview
Problem
Electronic devices with large screens and glass surfaces are prone to damage when dropped, as existing technologies do not effectively protect against impact-induced screen or glass breakage.
Innovation Solution
A gravity center adjustable device comprising a motor-driven mechanism with gravity center adjusting members and a gravity sensor, which adjusts the device's center of gravity to tilt the contact point during a fall, ensuring the electronic device lands on a protective frame rather than the fragile screen or glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the electronic device uses large screen and glass surfaces, then the display quality and appearance are improved, but the device becomes more prone to breakage when dropped
Solution Approach 1:
The device detects a drop event in advance and activates the gravity center adjusting mechanism to shift the center of gravity before impact occurs. This preliminary action repositions the heavy component to change the landing orientation, preventing the screen from contacting the ground first. The system proactively counteracts the harmful effect of screen breakage by preparing the protective configuration before the drop completes.
Solution Approach 2:
The device employs a movable heavy component that can dynamically change its position within the device housing. During normal operation, the heavy component remains in a standard position for optimal display viewing. Upon detecting a drop, the component rapidly shifts to a protective position, dynamically adapting the device's gravity center and landing characteristics to prevent screen damage.
2Reliability
If a protective mechanism is added to prevent screen breakage, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The gravity center adjusting mechanism serves multiple functions: it protects the screen during drops by changing landing orientation, and it can potentially assist with device handling and one-handed operation by repositioning the balance point. This multi-functionality justifies the added complexity by providing benefits beyond单纯的 drop protection.
Solution Approach 2:
The device uses its own existing components (battery, processor, or other heavy elements) as the movable heavy component, eliminating the need for separate dedicated protection mechanisms. The drop detection and gravity center adjustment system integrates with the device's existing sensor and actuator infrastructure, reducing overall system complexity despite adding protective functionality.
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 solution effectively protects the display screen and glass surfaces of electronic devices from breakage by dynamically adjusting the center of gravity to maintain contact with a robust middle frame during a fall, thereby preventing damage.
Implementation Method 1
a gravity sensor configured to sense whether the gravity center self-adjusting device has a gravity acceleration
Implementation Method 2
A gravity center adjustable device comprising a motor-driven mechanism with gravity center adjusting members
Data Source
AI summary
A gravity center adjustable device comprises a driving member, and two gravity center adjusting members. The driving member comprises a driving main body, two transmission shafts, and two gear wheels. Each gear wheel is coiled around a transmission shaft. Each gravity center adjusting member comprises a gravity center adjusting shaft, and two weight balls. The gravity center adjusting shaft comprises a rack shaft, teeth of the rack shaft are engaged with those of the gear wheel, thus when the gear wheel rotates, the rack shaft will move around along its own axial relative to the gear wheel. A gravity center self-adjusting device and an electronic device using the gravity center adjustable device are also provided.