Foldable Hinge Structure With Virtual Axes for Narrow Folding Space
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Solution Overview
Problem
Foldable electronic devices with narrow folding areas face challenges in arranging structures to support hinge motions due to limited space, making it difficult to optimize the arrangement and functionality of hinge structures.
Innovation Solution
A hinge structure comprising a first rotary bracket, a second rotary bracket, a fixed bracket, a first rotary member, a second rotary member, and elastic bodies, with cam structures and arms that rotate about virtual axes, allowing for efficient support of hinge motions and flexible display positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If various structures are disposed to support hinge motions of the housing structures, then the hinge motion support capability is improved, but the arrangement complexity increases and available space is reduced
Solution Approach 1:
The patent combines multiple hinge support structures into an integrated hinge assembly where the first and second rotary brackets, rotary members, and elastic bodies are merged into a single coordinated mechanism. This reduces arrangement complexity while maintaining hinge motion support capability through unified structural design.
Solution Approach 2:
The hinge structure is designed with multi-functional components that perform multiple functions simultaneously. The rotary brackets provide both rotation support and positioning functions, while the elastic bodies provide both cushioning and limiting functions. This multi-functionality reduces the number of separate structures needed, optimizing space arrangement.
2Reliability
If various structures are disposed to support hinge motions of the housing structures, then the hinge motion support capability is improved, but the available space is reduced
Solution Approach 1:
The hinge structure employs nested arrangement where components are positioned within each other's spaces. The rotary members are mounted on rotary brackets, and elastic bodies are positioned within the hinge assembly structure. This nesting approach maximizes space utilization while maintaining full hinge motion support capability.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by positioning components along different axes and dimensions. The first and second rotary brackets rotate about different virtual axes, and components are distributed in multiple spatial dimensions, efficiently utilizing the available folding area while providing comprehensive hinge motion support.
3Adaptability or versatility
If the hinge structure is designed with multiple rotary members and brackets, then the hinge motion flexibility is improved, but the device complexity increases
Solution Approach 1:
The hinge structure is segmented into distinct functional modules: rotary brackets for rotation, rotary members for positioning, and elastic bodies for cushioning. Each segment performs a specific function, and the modular design allows for easier manufacturing, assembly, and maintenance while providing flexible hinge motion through coordinated operation of segments.
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 hinge structure optimizes the arrangement of components within the limited space of foldable electronic devices, enabling effective support of hinge motions and flexible display configurations while maintaining portability and functionality.
Implementation Method 1
a first elastic body that is mounted on the first rotary member and that supports at least one side of the cam part in a direction toward the first arm, a second elastic body that is mounted on the second rotary member and that supports at least an opposite side of the cam part in a direction toward the second arm
Data Source
AI summary
A hinge structure includes a first rotary bracket that rotates about a first virtual axis and a second rotary bracket that rotates about a second virtual axis The hinge structure also includes a fixed bracket that includes the first rotary bracket and the second rotary bracket fixed thereto. The hinge further structure includes a first rotary member, a second rotary member, a first arm and a second arm. Additionally, the hinge structure includes a cam part that includes bumpy structures. A first elastic body is mounted on the first rotary member and supports at least one side of the cam part and second elastic body is mounted on the second rotary member and supports at least an opposite side of the cam part. The hinge structure also includes a support bracket that supports the first elastic body and the second elastic body.