Foldable Phone Hinge Support Mechanism Without Spring Thickness
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Solution Overview
Problem
The existing folding mechanisms in foldable mobile phones require significant space due to the use of springs, which occupy thickness direction space when compressed, leading to increased device thickness.
Innovation Solution
A folding mechanism utilizing swing arms with rotating bodies that provide support for a flexible display without the need for springs, allowing the support body to move towards or away from the base, reducing thickness direction space and enabling stable support through rotating bodies extending into grooves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring is used to drive the lifting door plate to descend, then the lifting door plate can be lowered to avoid rounded corners, but the spring occupies significant space in the thickness direction when compressed to maximum
Solution Approach 1:
The patent extracts and removes the spring component from the folding mechanism, replacing it with a swing arm structure. This eliminates the need for spring compression space in the thickness direction while maintaining the function of driving the lifting door plate to descend and protect the flexible display from rounded corners.
Solution Approach 2:
The patent changes the spatial arrangement by transitioning from a spring-based thickness-direction mechanism to a swing arm-based planar mechanism. The swing arm rotates in a plane parallel to the flexible display, utilizing horizontal space rather than vertical space, thereby reducing the thickness direction volume.
2Volume of moving object
If the support body is kept close to the base, then the thickness of the terminal device is reduced, but the support body cannot provide sufficient support for the flexible display during folding
Solution Approach 1:
The patent implements a dynamic support mechanism where the support body can move toward or away from the base through the swing arm's rotation. This dynamic adjustment allows the support body to maintain optimal proximity to the flexible display during folding, providing sufficient support strength while minimizing thickness when not in use.
Solution Approach 2:
The swing arm acts as an intermediary mechanism between the base and the support body, enabling controlled movement and positioning. This intermediary structure allows the support body to achieve both close proximity to the base and adequate support capability through the mechanical advantage of the swing arm's rotation and force transmission.
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 mechanism reduces the thickness of the foldable mobile phone by eliminating the need for spring compression space, providing stable support for the flexible display while minimizing displacement-related damage and enhancing motion stability.
Implementation Method 1
the first rotating body is configured to provide a force for the support body in a rotation process, so that the support body moves toward or away from the base; and the second rotating body is configured to provide a force for the support body in a rotation process, so that the support body moves toward or away from the base
Data Source
AI summary
This application provides a folding mechanism and a terminal device, and relates to the field of terminal technologies. The folding mechanism includes a base, a support body, a first swing arm, and a second swing arm. A part of the first rotating body extends into the first groove, and the first rotating body is configured to provide a force for the support body in a rotation process, so that the support body moves toward or away from the base. The second swing arm includes a second rotating portion and a second rotating portion fastened to the second rotating portion. A part of the second rotating portion extends into the second groove, and the second rotating portion is configured to provide a force for the support body in a rotation process, so that the support body moves toward or away from the base.