Rotating Shaft Hinge Layout for High Damping in Narrow Stands
Solution Overview
Problem
Conventional hinge mechanisms in electronic devices with built-in stands struggle to provide a large damping force while maintaining a small stand width, leading to difficulties in achieving both stability and miniaturization.
Innovation Solution
The hinge mechanism incorporates two damping structures arranged perpendicular to each other, with one damping structure mounted on a first component and the other connected through a connecting piece, allowing the stand to rotate and provide superimposed damping forces, enabling a small stand width without compromising stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the damping structure length is increased to provide sufficient damping force, then the damping force is improved, but the stand width increases resulting in large overall size
Solution Approach 1:
The patent transitions from a single damping structure arranged in one dimension to two damping structures arranged in different spatial dimensions. The first damping structure is arranged in a first direction while the second damping structure is arranged in a second direction that intersects with the first direction, allowing the stand width to be determined by the shorter dimension rather than requiring both structures to be arranged in the same direction.
Solution Approach 2:
The patent divides the damping function into two separate damping structures instead of relying on a single long damping structure. Each damping structure can be optimized independently, and their combined effect provides sufficient total damping force while allowing more compact spatial arrangement.
2Force
If multiple pairs of rotating shafts and sleeves are disposed to increase damping force, then the damping force is improved, but the stand width increases occupying large area on housing
Solution Approach 1:
The patent arranges the two damping structures in different spatial directions rather than stacking them in the same direction. This dimensional separation allows both damping structures to contribute to the damping force while maintaining a compact footprint on the housing surface.
3Stability of the object's composition
If the damping structure length is increased to ensure stable support, then the stability is improved, but the structural strength of housing decreases due to large stand size
Solution Approach 1:
By arranging damping structures in different spatial dimensions, the patent achieves sufficient support stability without requiring a large stand width that would compromise housing structural strength.
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
This design achieves a balance between stability and miniaturization by providing a large damping force with a small stand width, reducing the stand's area on the device housing and enhancing structural strength, facilitating a thin and lightweight design.
Implementation Method 1
When the first damping structure rotates about a first axis relative to the second component under driving of the first component, the second damping structure is driven by the connecting piece to rotate about a second axis relative to the second component. Both the first axis and the second axis extend in a second direction, and the second direction is perpendicular to the first direction.
Data Source
Figure 1~2
Figure 3a
Figure 3b~4
AI summary
A hinge mechanism (100) and an electronic device (200) are provided. The hinge mechanism is configured to connect a first component (E) and a second component (F). The first component (E) is rotatably connected to the second component (F) about a first axis (Q1). The hinge mechanism (100) includes a first damping structure (1), a second damping structure (2), and a connecting piece (3). The first damping structure (1) is mounted on the first component (E). The first damping structure (1) and the second damping structure (2) are spaced apart in a first direction (X) and are connected through the connecting piece (3). The first damping structure (1) rotates about the first axis (Q1) relative to the second component (F) under driving of the first component (E), and the second damping structure (2) is driven by the connecting piece (3) to rotate about a second axis (Q2) relative to the second component (F). Both the first axis (Q1) and the second axis (Q2) extend in a second direction (Y), and the second direction (Y) is perpendicular to the first direction (X). The hinge mechanism (100) can provide a large damping force when a stand (81) of the electronic device (200) has a small width, thereby achieving a balance between stability of support by and a miniaturization design of the stand (81).