Segmented Hinge Device for Large Screen Torque Distribution
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Solution Overview
Problem
Conventional electronic devices and hinge devices lack sufficient mechanical strength to operate in harsh usage environments and are prone to damage, deformation, or breakage due to excessive torque and stress, especially in devices with larger screens.
Innovation Solution
The design incorporates a hinge device with a first connecting element comprising a first segment, second segment, and third segment, forming an L-shaped structure with folding plates and bosses to distribute stress and enhance mechanical strength, and a second connecting element with extending arms and bosses to increase the moment of force bearing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the screen size is increased, then the display area is improved, but the moment arm increases causing larger bending moment and stress on the hinge device
Solution Approach 1:
The first connecting element is divided into three segments (first, second, and third segments) that are pivotally connected through the hinge element. This segmentation allows the structure to distribute the bending moment and stress across multiple pivot points rather than concentrating it at a single location, thereby maintaining hinge device strength while supporting larger screen sizes.
Solution Approach 2:
The first connecting element extends in multiple directions with segments arranged at different spatial orientations. The first segment extends in a first direction, the second segment in a second direction, and the third segment in a third direction, creating a three-dimensional structure that effectively distributes mechanical stress across multiple dimensions, reducing the impact of the increased moment arm from larger screens.
2Device complexity
If the support thickness is reduced, then the device complexity is reduced, but the mechanical strength and ability to bear moment of force is insufficient
Solution Approach 1:
The support structure is segmented into multiple elements (first connecting element with three segments, second connecting element with multiple segments) that work together to bear the moment of force. Each segment is thinner individually but collectively they provide sufficient structural strength, maintaining simplicity while ensuring adequate bearing capacity.
Solution Approach 2:
Multiple thin support segments are combined through pivotal connections to form a composite structure. The first connecting element combines first, second, and third segments, while the second connecting element combines multiple segments, creating a unified support system that achieves high bearing capacity through the synergistic arrangement of multiple thin components.
3Productivity
If the hinge device is subjected to large torque from frequent use, then the productivity is improved, but the mechanical strength is insufficient causing damage
Solution Approach 1:
The hinge device uses a segmented connecting element structure with multiple pivotally connected segments. This segmentation distributes the torque and stress from frequent operations across multiple joints and connection points, preventing concentrated wear and damage at any single location, thereby improving durability while maintaining high operation frequency.
Solution Approach 2:
The connecting elements are designed with pivotal connections that allow dynamic movement and rotation. The first connecting element and second connecting element can pivot relative to each other through the hinge element, enabling the structure to adapt dynamically to varying torque loads from frequent use, reducing stress concentration and improving reliability.
Data Source
AI summary
A hinge device and an electronic device having the same are provided. The hinge device includes a hinge element, first connecting element, and second connecting element. The first connecting element includes first, second and third segments. The second segment is disposed between the first and third segments. The third segment is connected to the hinge element. The first segment includes a first connecting plate and first folding plate between which a first angle less than 180 degrees but greater than 0 degree is defined. The first folding plate has one side connected to the first connecting plate. The second connecting element includes a first fixing plate, first boss, and first extending arm. The first extending arm has one end connected to the hinge element and the other end connected to the first fixing plate. The first boss is connected to the first fixing plate.