Lunular Axle Sleeve Hinge Module Torque Control
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Solution Overview
Problem
Hinge modules in notebook computers deteriorate quickly due to frequent opening and closing, leading to reduced torque efficiency and durability.
Innovation Solution
A hinge module design featuring a lunular shape axle sleeve with gradual thickness changes and an eccentric structure, providing frictional torque through a rotatable sleeve around an axis body, allowing for adjustable torque values and enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequent opening and closing operations are performed, then the hinge module provides necessary torque for operation, but the hinge module deteriorates quickly and durability is reduced
Solution Approach 1:
The patent changes the geometric parameters of the axle sleeve by designing it with gradual thickness variation (thicker at one end, thinner at the other) and an eccentric structure. This parameter change optimizes the friction characteristics between the axle sleeve and axis body, providing sufficient torque while reducing wear during frequent operations, thereby improving durability and service life.
Solution Approach 2:
The axle sleeve is designed with non-uniform thickness distribution, being thicker at one end and thinner at the other. This local quality variation creates different friction characteristics at different positions, allowing the hinge to provide adequate torque during operation while reducing overall wear and improving durability.
2Reliability
If a lunular shape axle sleeve with gradual thickness changes is used, then torque efficiency is enhanced and durability is improved, but the structural complexity increases
Solution Approach 1:
The axle sleeve features local quality variation through its lunular shape and gradual thickness changes. This design provides enhanced torque efficiency at critical locations while maintaining a relatively simple overall structure that is still manufacturable and practical.
Solution Approach 2:
The axle sleeve employs an asymmetric lunular shape with eccentric positioning and non-uniform thickness distribution. This asymmetric design optimizes torque generation and durability without requiring complex multi-component structures, achieving improved performance with moderate structural complexity.
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 design enhances torque efficiency by allowing easier opening with reduced force and increased friction during closure, extending the lifespan of hinge modules and improving user experience.
Implementation Method 1
The lunular shape axle sleeve is rotatably sleeved around the axis body for providing friction so as to form torques while the axis body is rotated relative to the lunular shape axle sleeve
Data Source
AI summary
A hinge module including a fixing member, a moving assembly, and a torque member is provided. The moving assembly includes a bracket and an axis body protruding from the bracket. The torque member includes a first end portion and a second end portion opposite to each other. The first end portion is fixed to the fixing member. The second end portion includes a lunular shape axle sleeve with an opening. The lunular shape axle sleeve is rotatably sleeved around the axis body for providing friction so as to form torques while the axis body is rotated relative to the lunular shape axle sleeve. The lunular shape axle sleeve has a gradual changed thickness. An electronic device having the hinge module is further provided.