Elastic Pivot Structure for Adjustable Rotating Module Torsion
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Solution Overview
Problem
Conventional hinges used in electronic devices are complex, non-adjustable, and costly to replace, making them difficult to assemble and disassemble.
Innovation Solution
A pivot structure comprising elastic arms, protruding portions, and a fixing portion, which provides torsion through friction and allows for easy assembly and disassembly, with adjustable torsion by modifying material, arm thickness, and protruding portion position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional hinge is used to pivotally connect the rotating module to the device body, then the rotating module can rotate and stop at a specific position, but the structure becomes complicated and the torsion cannot be adjusted
Solution Approach 1:
The hinge is divided into multiple independent components: a first component (fixed to device body), a second component (fixed to rotating module), and an elastic arm connecting them. This segmentation simplifies the overall structure while maintaining rotational functionality and enabling independent replacement of components.
Solution Approach 2:
The elastic arm is designed to be deformable, allowing it to dynamically adjust its shape during rotation. The deformation of the elastic arm provides the necessary torsion and enables the rotating module to stop at specific positions, replacing the need for complex mechanical torsion springs in conventional hinges.
2Reliability
If a conventional hinge is used, then the rotating module can be connected to the device body, but the hinge cannot be easily assembled or disassembled and replacement cost is high
Solution Approach 1:
The hinge connection is segmented into detachable components with standardized interfaces. The first component connects to the device body, the second component connects to the rotating module, and they are joined through the elastic arm. This segmentation allows easy assembly and disassembly while maintaining stable connection during use.
Solution Approach 2:
The elastic arm's material properties and geometric parameters (thickness, width, length) can be adjusted to achieve the desired torsion and connection strength. By changing these parameters, the hinge provides both reliable connection and ease of replacement without requiring complex assembly procedures.
3Ease of manufacture
If the hinge structure is simplified, then assembly becomes easier, but the torsion adjustment capability is lost
Solution Approach 1:
The elastic arm's torsion characteristics can be adjusted by changing its material properties (elastic modulus), geometric parameters (thickness, width, length), or the position of protruding portions. This allows the simplified elastic arm structure to provide adjustable torsion capability, replacing the need for complex mechanical adjustment mechanisms in conventional hinges.
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 pivot structure offers a simple, flexible, and cost-effective solution for electronic devices, allowing for easy assembly and disassembly, and adjustable torsion to accommodate various device requirements.
Implementation Method 1
the pivot structure provides torsion by friction between the protruding portion on the elastic arm and the pivot hole of the device body
Data Source
AI summary
An electronic device includes a device body and a rotating module. The device body includes a first pivot hole. The rotating module includes a first fixing structure and a first pivot structure. The first pivot structure includes at least one elastic arm, at least one protruding portion and a fixing portion. The at least one elastic arm and the fixing portion are respectively located at opposite sides of the first pivot structure. The at least one protruding portion respectively extends from the at least one elastic arm. The fixing portion is fixed to the first fixing structure. The at least one elastic arm is disposed in the first pivot hole. The at least one protruding portion abuts against an inner wall of the first pivot hole.