Foldable Hinge Linkage for Synchronous Rotation Accuracy
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Solution Overview
Problem
Current rotating shaft structures for foldable electronic devices are complex and require high manufacturing and assembly accuracy, leading to increased costs and potential errors in synchronous rotation.
Innovation Solution
A rotating shaft mechanism comprising a rotating shaft base, first and second rotating members, and a linkage assembly with sliding blocks and sliding portions, allowing for synchronous rotation without the need for complex gear structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex gear transmission mechanism is adopted in the rotating shaft structure, then the synchronous rotation function can be achieved, but the device complexity increases and manufacturing precision requirements increase
Solution Approach 1:
The patent extracts and removes the complex gear transmission mechanism from the rotating shaft structure, replacing it with a simplified linkage assembly consisting of connecting rods and sliding blocks. This extraction eliminates unnecessary mechanical complexity while preserving the synchronous rotation function through a more straightforward mechanical connection between the first and second rotating members.
Solution Approach 2:
The patent introduces a linkage assembly as an intermediary mechanism between the first rotating member and the second rotating member. This linkage assembly, comprising connecting rods and sliding blocks, mediates the transmission of rotational motion, achieving synchronous rotation without requiring direct gear engagement, thereby simplifying the overall structure.
2Reliability
If a complex gear transmission mechanism is adopted in the rotating shaft structure, then the synchronous rotation function can be achieved, but the manufacturing cost increases
Solution Approach 1:
The patent extracts and removes the complex gear transmission mechanism from the rotating shaft structure, replacing it with a simplified linkage assembly consisting of connecting rods and sliding blocks. This extraction eliminates unnecessary mechanical complexity while preserving the synchronous rotation function through a more straightforward mechanical connection between the first and second rotating members.
Solution Approach 2:
The patent replaces expensive, precision-critical gear components with simpler, more cost-effective linkage components such as connecting rods and sliding blocks. These alternative components are easier and less costly to manufacture while still achieving the required functional performance for synchronous rotation.
3Reliability
If a complex gear transmission mechanism is adopted in the rotating shaft structure, then the synchronous rotation function can be achieved, but the assembly precision requirements increase
Solution Approach 1:
The patent extracts and removes the complex gear transmission mechanism from the rotating shaft structure, replacing it with a simplified linkage assembly consisting of connecting rods and sliding blocks. This extraction eliminates unnecessary mechanical complexity while preserving the synchronous rotation function through a more straightforward mechanical connection between the first and second rotating members.
Solution Approach 2:
The patent changes the mechanical parameters and connection methods of the rotating shaft structure by replacing gear meshing with a linkage system using connecting rods and sliding blocks. This parameter change transforms the high-precision gear engagement requirements into a more tolerant linkage system that achieves synchronous rotation with lower assembly precision requirements.
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 enables synchronous rotation of the rotating members with high accuracy and reduced assembly errors, thereby lowering production costs and improving the reliability of the rotating shaft mechanism.
Implementation Method 1
The first linkage member has a first sliding block, the second linkage member has a second sliding block, the first rotating member has a first sliding portion in sliding fit with the first sliding block, and the second rotating member has a second sliding portion in sliding fit with the second sliding block
Data Source
AI summary
An electronic device and a foldable assembly are provided, the electronic device includes a first main body, a second main body, and a rotating shaft mechanism which includes a rotating shaft base, a first rotating member, a second rotating member, and a linkage assembly; and the linkage assembly includes a first linkage member and a second linkage member, the first linkage member and the second linkage member each have sliding blocks, the first rotating member and the second rotating member each have sliding portions in sliding fit with sliding blocks. The first rotating member further has a first main body portion, the first sliding portion is disposed at one side of the first main body portion, and the first sliding block is in sliding fit and rotating fit with a first sliding groove defined between the first sliding portion and the first main body portion.