Rotating Shaft Connection Mechanism for Durable Laptop Hinges
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing rotating shaft connection mechanisms in laptop computers have a limited service life and durability due to the requirement for precise alignment and equal rotation angles, which affects the opening and closing performance.
Innovation Solution
A device with a rotating shaft connection mechanism that includes multiple rotating shaft components and linear components with different rotation radii, generating a length difference to create a torsion force and reduce the rotation angle, improving durability and allowing flexible placement of the mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the rotating shaft center coincides with the rotation center of the second body, then the structure is simple and easy to manufacture, but the service life of the rotating shaft is reduced and opening and closing durability deteriorates
Solution Approach 1:
The patent divides the connection mechanism into multiple rotating shaft components (first rotating shaft component and second rotating shaft component) that can rotate independently. This segmentation allows each shaft to have optimized rotation angles that do not need to coincide with the body rotation center, thereby improving durability while maintaining manufacturing simplicity.
Solution Approach 2:
The patent introduces asymmetric rotation angles for the rotating shaft components, where the first rotating shaft component rotates at a first rotation angle and the second rotating shaft component rotates at a second rotation angle that differs from the first. This asymmetry enables the rotating shafts to avoid coinciding with the body rotation center, reducing wear and improving service life.
2Reliability
If multiple rotating shaft components with different rotation angles are used, then the service life of the rotating shaft connection mechanism is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple rotating shaft components and linear components into an integrated connection mechanism where the components work together through a unified structure. The first and second rotating shaft components are merged with linear components that connect the first and second bodies, creating a coordinated system that improves reliability without proportionally increasing complexity.
Solution Approach 2:
The patent introduces dynamic rotation angles for the rotating shaft components, where the rotation angles can vary during operation. The first rotating shaft component rotates at a first rotation angle and the second at a second rotation angle, allowing the mechanism to adapt dynamically to different operational states, thereby improving service life while maintaining manageable complexity through controlled motion.
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 solution effectively reduces the rotation angle of the rotating shaft, enhances the service life, and improves the opening and closing durability of laptop computers by generating a torsion force through friction, while allowing for flexible positioning and increased motion direction.
Implementation Method 1
friction is generated between the rotating shaft and the linear component that is wound around an outer wall of the rotating shaft. This generates a torsion force
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
This application provides a device with opening and closing performance. The device includes a first body (210), a second body (220), and a rotating shaft connection mechanism (230) configured to connect the first body (210) and the second body (220). The rotating shaft connection mechanism (230) includes N rotating shaft components (231), a connection component (232), and N movable linear components (233) corresponding to the N rotating shaft components (231). An ith linear component (233) is wound around a rotating shaft (2312) of a corresponding ith rotating shaft component (231). A segment of extending linear component (2331) and a segment of extending linear component (2332) separately pass through the connection component (232). When the second body (220) rotates relative to the first body (210), the segment of linear component (2331) and the segment of linear component (2332) have different rotation radii. In this way, a rotation angle of the rotating shaft may be less than an angle of the second body rotates relative to the first body, so that the rotation angle of the rotating shaft can be reduced. This can improve a service life of the rotating shaft connection mechanism, and opening and closing durability of the device.