Compact Hinge Damping Mechanism for Foldable Terminal Torque Control
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Solution Overview
Problem
Existing rotating shaft damping mechanisms in foldable screen phones are too large, limiting the development of lighter and thinner devices, and fail to provide sufficient unfolding and closing forces without occupying excessive space.
Innovation Solution
A compact damping mechanism using an elastic member with a torsion spring, a first fixing member, and a first swinging member, which generates unfolding and closing forces through a rotatable connection, allowing for a smaller structure size and improved user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If an existing rotating shaft damping mechanism is used, then the folding effect and damping function are achieved, but the structure size becomes relatively large
Solution Approach 1:
The damping mechanism is divided into independent functional modules: the elastic member (torsion spring) provides damping force, the first fixing member provides mounting interface, and the first swinging member transmits force. This modular segmentation allows each component to be optimized independently, reducing overall size while maintaining damping effectiveness.
Solution Approach 2:
The mechanism utilizes rotational movement in a different dimensional plane compared to traditional linear damping structures. By employing rotational joints and a swinging member that moves in an arc, the mechanism achieves damping functionality with a more compact spatial footprint, adapting to the light and thin size requirements of foldable devices.
2Force
If the damping mechanism size is reduced, then the foldable device can be lighter and thinner, but the unfolding force and closing force may be insufficient
Solution Approach 1:
The mechanism employs dynamic force transmission through the swinging member that rotates about a fixed point. The elastic member dynamically adjusts the unfolding and closing forces based on the rotation angle, providing sufficient force at critical positions while maintaining a compact structure. The first swinging member acts as a lever arm, amplifying the elastic force to achieve adequate unfolding and closing forces.
Solution Approach 2:
The mechanism changes the physical parameters of force application through the rotational movement of the first swinging member. By varying the rotation angle and position, the mechanism optimizes the magnitude and direction of unfolding and closing forces, ensuring sufficient force output from a compact structure.
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 proposed damping mechanism provides the necessary unfolding and closing forces while minimizing the structural size, enabling the creation of lighter and thinner foldable devices with enhanced user interaction and reduced space requirements.
Implementation Method 1
an elastic member, where the elastic member includes a first pin and a second pin... an elastic force generated by the elastic member acts on a center of rotation
Implementation Method 2
the elastic member in this application may be a torsion spring, a spring, or the like... a torque force generated by a torsion foot of the torsion spring resolves an unfolding force and a folding force
Data Source
AI summary
This application provides a damping mechanism. An elastic member, where the elastic member includes a first pin and a second pin; a first fixing member, where the first fixing member is rotatably connected to the second pin in a first direction; and a first swinging member, where the first swinging member includes a first fixing portion and a first moving portion connected to the first fixing portion, and the first fixing portion is rotatably connected to the first fixing member in the first direction; the first moving portion is rotatably connected to the first pin in the first direction; and when rotation is performed between the first fixing member and the first swinging member, an elastic force generated by the elastic member acts on a center of rotation in which the first moving portion is rotatably connected to the first pin, forming an unfolding force or a closing force.