Cross-Rod Coupling Assembly for Foldable Screen Wear Control
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Solution Overview
Problem
Existing coupling assemblies in foldable devices face challenges in maintaining structural stability and user experience due to issues with deformation and wear during folding and unfolding, leading to reduced service life of foldable screens.
Innovation Solution
A coupling assembly comprising a screw rod, holder, shaft sleeve set, and connection rod set, where the shaft sleeves are designed to slide and rotate, allowing for adjustable angles and distances to accommodate changes in width, thereby minimizing deformation and wear by enabling smooth folding and unfolding of the screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the coupling assembly uses rigid connection structures to maintain structural stability, then the structural stability is improved, but the deformation and wear during folding and unfolding increases
Solution Approach 1:
The patent applies the dynamics principle by designing a coupling assembly where the connection rod can dynamically adjust its angle relative to the shaft sleeve during folding and unfolding operations. The connection rod rotates around the shaft sleeve centerline, allowing the assembly to adapt its configuration during movement, thereby reducing deformation and wear while maintaining structural stability.
2Manufacturing precision
If the coupling assembly uses fixed-angle connection rods, then the manufacturing precision is improved, but the adaptability to different folding states decreases
Solution Approach 1:
The connection rod is designed to be rotatable around the shaft sleeve centerline, enabling it to dynamically adjust its angle according to different folding states. This dynamic adjustment capability allows the assembly to adapt to various configurations while maintaining manufacturing precision through controlled rotation mechanisms.
Solution Approach 2:
The patent employs parameter changes by allowing the connection rod angle to vary during operation. The angle between the connection rod and shaft sleeve centerline can change from 0° to a maximum angle and back, enabling the assembly to adapt to different folding states while maintaining structural integrity.
3Device complexity
If the coupling assembly uses simple hinge structures, then the device complexity is reduced, but the structural stability during repeated folding and unfolding decreases
Solution Approach 1:
The coupling assembly is segmented into distinct functional components: a shaft sleeve with centerline, a connection rod, and a rotation mechanism. This segmentation allows each component to perform its specific function while working together to maintain structural stability during repeated folding and unfolding operations.
Solution Approach 2:
The patent incorporates dynamic elements into the coupling assembly, specifically the rotatable connection rod that can adjust its angle during operation. This dynamic capability enhances structural stability during repeated folding and unfolding while maintaining relatively simple device 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 solution effectively reduces unnecessary stretches and wrinkles, prolongs the service life of foldable screens, and enhances user experience by maintaining structural stability and flexibility during repeated use.
Implementation Method 1
a screw rod; a holder mounted on the screw rod
Data Source
AI summary
A coupling assembly includes: a screw rod; a holder mounted on the screw rod; a shaft sleeve set and a connection rod set. The shaft sleeve set includes: a first shaft sleeve embedded in the holder; and a second shaft sleeve fitted over the screw rod at an outer side and slidable on the screw rod. The connection rod set includes: a first connection rod having an end fixedly coupled to the first shaft sleeve; and a second connection rod having an end fixedly coupled to the second shaft sleeve, the second connection rod and the first connection rod crossing and being coupled at a junction. The first connection rod and the second connection rod cross to form an angle.