Elastic Padding in Foldable Hinge Chain for Dust Protection
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Solution Overview
Problem
Commercially available foldable electronic devices have complex hinges that lack waterproof and dustproof capabilities, which can lead to reduced lifespan and functionality.
Innovation Solution
A foldable electronic device with a hinge structure comprising a chain and elastic padding, where the elastic padding is integrated into the chain units to provide moisture and particle protection, enabling the hinge to guide folding and unfolding while maintaining a simple design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex hinge structure is used in foldable electronic devices, then the device can achieve folding functionality, but the hinge lacks waterproof and dustproof capability
Solution Approach 1:
The elastic padding is nested within the chain unit structure, with the padding inserted into the hollow space formed by interconnected metal plates. This nesting approach allows the sealing element to be integrated into the existing hinge structure without adding external components, achieving waterproof and dustproof capability while maintaining structural simplicity
Solution Approach 2:
The elastic padding is strategically placed at specific locations within the chain units where gaps between metal plates create potential ingress paths for moisture and particles. By applying sealing material only at these critical locations rather than throughout the entire hinge structure, the patent achieves protection against environmental factors without requiring complete structural redesign
2Reliability
If elastic padding is integrated into chain units, then waterproof and dustproof capability is improved, but the hinge structure becomes more complex
Solution Approach 1:
The elastic padding is merged with the chain unit structure by inserting it into the hollow space formed by interconnected metal plates. This combining approach integrates the sealing function directly into the existing mechanical structure, eliminating the need for separate sealing components and reducing overall structural complexity
Solution Approach 2:
The elastic padding utilizes the existing hollow space within the chain units as its housing, eliminating the need for additional sealing chambers or complex mounting structures. The chain unit structure itself provides the containment space for the elastic padding, making the sealing system self-contained and simplifying the overall design
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 integration of elastic padding in the hinge device enhances its waterproof and dustproof capabilities, prolonging the lifespan of the device by preventing moisture and particle ingress, while allowing for smooth folding and unfolding of flexible components.
Implementation Method 1
the elastic padding can block particles and moisture from entering the chain
Implementation Method 2
The elastic padding is disposed at least one of in the recess of the first chain unit or between the first pivot portion and the second pivot portion
Data Source
AI summary
A foldable electronic device includes a frame, a flexible component disposed on the frame, and a hinge device. The hinge device includes a chain and at least one elastic padding. The chain is connected to the frame and includes a plurality of chain units. The elastic padding is disposed in at least one of the chain units or encapsulates at least one of the chain units.


