Foldable Hinge Elastic Structure for Gap and Noise Reduction
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Solution Overview
Problem
Existing hinges in foldable electronic devices have large fitting gaps at connections, which affect the smoothness and stability of the hinge, leading to abnormal rotation noise when switching between folded and unfolded positions.
Innovation Solution
A hinge design incorporating a support structure, multiple rotating mechanisms, and elastic structures to reduce fitting gaps between connected components, utilizing elastic forces to improve smoothness and stability, and minimize noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hinge connections are used, then the structure is simple and easy to manufacture, but the fitting gap between connected components is large, causing abnormal rotation noise and poor smoothness
Solution Approach 1:
An elastic connection structure is introduced as an intermediary component between the rotating mechanism and the support structure. This elastic connection includes elastic components that elastically connect the rotating mechanism to the support structure, filling the fitting gap and reducing abnormal rotation noise without requiring complex precision machining or assembly
2Object-generated harmful factors
If tight fitting connections are used, then the abnormal rotation noise is reduced, but the manufacturing precision and assembly difficulty increase significantly
Solution Approach 1:
The connection characteristics are changed from rigid to elastic by introducing elastic components. This parameter change allows the connection to adapt to manufacturing tolerances and reduce fitting gaps dynamically during operation, thereby reducing rotation noise without requiring extremely tight manufacturing precision
3Ease of operation
If elastic structures are added to reduce fitting gaps, then the smoothness and noise reduction improve, but the device complexity increases
Solution Approach 1:
Elastic connection structures with flexible characteristics are used to connect the rotating mechanism to the support structure. These flexible elastic components can deform to accommodate fitting gaps and provide smooth motion during folding and unfolding, improving ease of operation while adding only moderate structural complexity
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 elastic structures effectively reduce fitting gaps and abnormal rotation noise, enhancing the smooth operation and stability of the hinge during folding and unfolding.
Implementation Method 1
the at least one elastic structure is configured to reduce a fitting gap at a connection between the support structure and the rotating mechanism and/or a fitting gap at a connection between adjacent rotating members within the rotating mechanism
Data Source
AI summary
A hinge includes a support structure, at least two rotating mechanisms and at least one elastic structure. Two of the at least two rotating mechanisms are rotatably connected to two opposite sides of the support structure. The at least one elastic structure is configured to reduce a fitting gap at a connection between the support structure and the rotating mechanism and/or a fitting gap at a connection between adjacent rotating members within the rotating mechanism.