Laptop Hinge Mechanism That Clears the Heat Dissipation Path
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Solution Overview
Problem
Laptop computers face poor heat dissipation efficiency due to the lower edge of the second body blocking the heat dissipation path when it pivots and unfolds relative to the first body, as the heat sources are primarily located inside the first body.
Innovation Solution
A hinge mechanism that adjusts the distance between the lower edge of the second body and the back side of the first body by using a gear system and guide grooves, allowing the second body to slide away from the heat dissipation opening when unfolded, ensuring unobstructed airflow for heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the second body is pivotally connected to the back side of the first body at its lower edge, then the device achieves a compact folded state and portable form factor, but the lower edge of the second body blocks the heat dissipation path when unfolded
Solution Approach 1:
The hinge mechanism transforms from a simple pivotal connection to a dynamic system with gear-driven sliding motion. The second body can now adjust its position relative to the first body along an arc-shaped path, dynamically changing the distance between the lower edge of the second body and the back side of the first body to prevent blocking the heat dissipation path while maintaining compact folded state
Solution Approach 2:
The gear mechanism (first gear, second gear, third gear) and rack portion act as intermediaries between the pivotal connection and the sliding motion. These intermediary components convert the rotational motion into linear sliding motion along the guide groove, enabling the second body to move away from the heat dissipation opening while maintaining the pivotal connection structure
2Length of stationary object
If the second body is positioned close to the back side of the first body when unfolded, then the device achieves a thin profile, but the heat dissipation path is blocked
Solution Approach 1:
The solution moves the heat dissipation problem from a two-dimensional planar constraint to a three-dimensional spatial arrangement. By introducing arc-shaped sliding motion along the guide groove, the second body can maintain a thin profile when folded while creating sufficient clearance from the heat dissipation path when unfolded, effectively using the third dimension (depth/distance) to resolve the conflict
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 rotating shaft fixed to the second body. When the second body rotates relative to the first body, the rotating shaft slides along an arc-shaped path to increase or decrease a distance between a lower edge of the second body and a back side of the first body.