Dual Shaft Hinge Module with Sliding Member for Torque Distribution
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Solution Overview
Problem
The challenge in designing notebook computers is to achieve a light and thin appearance while maintaining sufficient torque support for the hinge module, as reducing the hinge module's size leads to inadequate torque generation.
Innovation Solution
A hinge module with a sliding member coupled to dual rotating shafts and torque members distributed on opposite sides of the sliding member for synchronous rotation and stress dispersion, allowing efficient unfolding and folding while reducing stress concentration on individual components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the hinge module size is reduced to achieve light and thin design, then the appearance dimensions are improved, but the torque generation capability deteriorates
Solution Approach 1:
The hinge module is segmented into multiple functional components: first and second rotating shafts for dual-axis rotation, a sliding member for synchronous motion control, and first and second torque members for distributed torque application. This segmentation allows each component to be optimized independently while maintaining overall compact dimensions and sufficient torque generation.
Solution Approach 2:
The patent transitions from a single shaft configuration to a dual shaft configuration with the sliding member enabling synchronous rotation in a second dimension. This dimensional expansion allows the hinge module to achieve greater mechanical advantage and torque multiplication within a compact form factor, resolving the contradiction between size reduction and torque maintenance.
2Device complexity
If a single torque member is used, then the structure is simpler, but stress concentration increases on individual components
Solution Approach 1:
The torque transmission function is segmented into first and second torque members that are distributed on opposite sides of the sliding member. This segmentation distributes the mechanical stress across multiple components rather than concentrating it on a single element, reducing stress concentration while adding only moderate structural complexity.
Solution Approach 2:
The first and second torque members are positioned on opposite sides of the sliding member, creating a balanced configuration that distributes loads symmetrically. This counterbalancing arrangement reduces stress concentration on individual components by sharing the mechanical burden across the dual torque member system.
Data Source
AI summary
A hinge module including a first rotating shaft, a second rotating shaft, a sliding member, a first torque member, and a second torque member is provided. The sliding member coupled to the first rotating shaft and the second rotating shaft simultaneously. The first rotating shaft and the second rotating shaft are rotated synchronously via the sliding member. The first torque member and the second torque member are connected to the first rotating shaft and the second rotating shaft, and the first torque member and the second torque member are located at opposite sides of a sliding range of the sliding member. A foldable electronic device is also provided.