Biaxial Hinge Structure for Portable Electronic Device
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Solution Overview
Problem
Existing portable electronic devices, such as notebook computers, have limited flexibility in operation due to the restricted range of angles that the display can be turned relative to the host, primarily due to the use of a single-axis hinge.
Innovation Solution
A portable electronic device is designed with a biaxial hinge structure that allows the display to be turned over relative to the stand through two shafts in sequence, increasing the range of angles that can be turned and improving operational flexibility. Additionally, the device allows the display to slide relative to the stand, enhancing smoothness and preventing collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-axis hinge is integrated at the pivot point between the display and the stand, then the display can be turned over relative to the stand, but the range of the angle that the display can be turned over is too small, which lacks flexibility in operation
Solution Approach 1:
The single-axis hinge is segmented into two separate axes: a first axis allowing rotation between the host and stand, and a second axis allowing rotation between the display and stand. This segmentation enables independent control of each rotation axis, significantly increasing the range of adjustable angles and operational flexibility.
Solution Approach 2:
The hinge structure transitions from one-dimensional (single-axis) rotation to two-dimensional (biaxial) rotation. The first axis provides rotation in one plane, while the second axis provides rotation in a perpendicular plane, creating a two-degree-of-freedom system that dramatically expands the display's angular adjustment capability.
2Adaptability or versatility
If the display is pivotally connected to the host through a stand, then the user can flexibly adjust the viewing angle, operation angle or operation height of the display, but the structure becomes more complex
Solution Approach 1:
The hinge structure merges the functions of two separate hinges into a single integrated assembly. The first and second brackets, along with the two axes and connecting components, are combined into one unified hinge unit that provides both rotation axes, reducing the number of separate components needed and simplifying the overall structure.
Solution Approach 2:
The stand structure serves multiple functions simultaneously: it acts as a support structure, a pivot connection point for the first axis, and a mounting base for the second axis. This multi-functionality reduces the need for additional separate components, maintaining structural simplicity while achieving biaxial rotation capability.
Data Source
AI summary
A portable electronic device including a first body, a second body, a stand, and a hinge structure is provided. The stand has a first pivot part and a second pivot part opposite to the first pivot part, wherein the first pivot part is pivotally connected to the first body, and the second body is pivotally connected to the second pivot part. The hinge structure includes a first bracket secured to the second body, a second bracket secured to the second pivot part of the stand, a first movable base, a first shaft secured to the first bracket and pivoted to the first movable base, a second movable base, a second shaft secured to the first movable base and pivoted to the second movable base, and a sliding shaft fixed to the second movable base and slidably connected to the second bracket.