Sliding Hinge Mechanism for Laptop Heat Dissipation Clearance
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Solution Overview
Problem
Notebook computers face performance decline due to overheating, as the heat dissipation path is obstructed when the second body rotates and unfolds, reducing the efficiency of hot air discharge from the first body.
Innovation Solution
A hinge mechanism that allows the second body to slide and rotate with respect to the first body, adjusting the distance between the lower end of the second body and the back end of the first body, thereby preventing obstruction of the heat dissipation path and ensuring efficient hot air discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the second body rotates and unfolds with respect to the first body, then the display area is increased, but the lower end of the second body blocks the heat dissipation path, reducing heat dissipation efficiency
Solution Approach 1:
The hinge mechanism transforms from a simple rotational joint to a dynamic mechanism with two degrees of freedom: rotation around the first axis and sliding along the arc-shaped path. This dynamic structure allows the second body to both rotate for display purposes and slide to maintain clearance from the heat dissipation path, resolving the contradiction between display area expansion and heat dissipation efficiency
Solution Approach 2:
The gear rack and gear set act as intermediary mechanisms between the rotation axis and the second body. These components transmit and coordinate the motion, enabling the second body to follow an arc-shaped sliding path while rotating, thus preventing blockage of the heat dissipation path while maintaining display functionality
2Device complexity
If a traditional hinge mechanism is used, then the structure is simple, but the second body blocks the heat dissipation path when unfolded
Solution Approach 1:
The hinge mechanism is segmented into multiple functional components: a first axis for rotation, a gear rack for linear motion guidance, gear sets for motion transmission, and a sliding connection structure. This segmentation allows independent optimization of each component to achieve both rotation and sliding functions while maintaining heat dissipation efficiency
Solution Approach 2:
The mechanism introduces dynamic sliding motion along an arc-shaped path in addition to rotation, creating a two-degree-of-freedom system. This dynamic behavior allows the second body to adapt its position during unfolding, ensuring it does not block the heat dissipation path while maintaining structural coherence
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 mechanism ensures excellent heat dissipation efficiency by maintaining an unobstructed path for hot air discharge, even when the second body is rotated and unfolded, thus preventing performance decline due to overheating.
Implementation Method 1
a first gear fixed to the first axis; a first gear set engaged with the first gear; a gear rack rotatably connected to the first axis... a second gear fixed to the second axis; and a second gear set engaged with the second gear and the gear rack
Implementation Method 2
the second gear drives the second gear set to rotate, and the second gear set slides with respect to the gear rack, such that the second axis slides along an arc shaped path with respect to the first axis
Implementation Method 3
The second body is connected to the first body through the hinge mechanism
Data Source
AI summary
A portable electronic device including a first body, a second body, and a hinge mechanism is provided. The second body is connected to the first body through the hinge mechanism, and the hinge mechanism has a basis axis located at the first body and a rotation axis located at a lower end of the second body. When the second body rotates with respect to the first body, the rotation axis slides along an arc shaped path with respect to the basis axis to increase or decrease a distance between the rotation axis and the basis axis and increase or decrease a distance between the lower end of the second body and a back end of the first body.