Portable Vent Door Structure for On-Demand Device Cooling
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Solution Overview
Problem
Existing portable electronic devices face challenges in heat dissipation due to the lack of efficient cooling mechanisms, particularly in devices like smartphones and tablets, as fans are bulky and noisy, necessitating improved heat dissipation solutions.
Innovation Solution
A modular design incorporating a heat dissipation element with a door cover structure driven by a pivotally connected drive connecting rod, allowing manual or automatic opening and closing of a heat dissipation opening to enhance cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is integrated into the portable electronic device for heat dissipation, then the heat dissipation capability is improved, but the device volume increases and noise is generated
Solution Approach 1:
The heat dissipation system is segmented into a fixed heat dissipation element and a movable door cover structure. The door cover can be selectively opened or closed to control heat dissipation, allowing the system to provide heat dissipation capability only when needed, thus avoiding the need for a continuously operating fan and reducing overall device volume.
Solution Approach 2:
The door cover structure is designed to be movable between open and closed positions, dynamically adjusting the heat dissipation opening area based on thermal requirements. This dynamic control allows the device to optimize heat dissipation while maintaining a compact form factor when full heat dissipation is not required.
2Temperature
If a fan is integrated into the portable electronic device for heat dissipation, then the heat dissipation capability is improved, but noise is generated during operation
Solution Approach 1:
The noisy fan component is extracted and replaced with a passive heat dissipation element combined with a movable door cover. The door cover mechanism uses a drive connecting rod for actuation rather than a continuously running fan, significantly reducing operational noise while maintaining heat dissipation capability when needed.
Solution Approach 2:
Instead of continuous fan operation, the system uses periodic or on-demand opening/closing of the door cover to provide heat dissipation only when thermal conditions require it. This periodic action reduces noise generation compared to continuous fan operation.
3Device complexity
If a non-modular heat dissipation design is used, then the assembly structure is simpler, but assembly steps become cumbersome and heat dissipation efficiency is reduced
Solution Approach 1:
The bracket is designed as a universal mounting structure that can accommodate both the heat dissipation element and the door cover structure. This multi-functional bracket simplifies the overall assembly structure while enabling efficient heat dissipation through the movable door cover mechanism.
Solution Approach 2:
The drive connecting rod introduces a rotational dimension to control the door cover's linear movement. This dimensional transformation allows compact arrangement of components while maintaining effective heat dissipation pathways, resolving the conflict between structural simplicity and heat dissipation efficiency.
Data Source
AI summary
A portable electronic device is provided. The portable electronic device includes a housing, a heat dissipation element, a bracket, a drive connecting rod, and a door cover structure. The housing is provided with the heat dissipation opening. The heat dissipation element is disposed in the housing and corresponds to the heat dissipation opening. The bracket is disposed in the housing and frames the heat dissipation element. The drive connecting rod is pivotally connected to the bracket and is adapted to be driven to rotate. The door cover structure is coupled to the bracket, where the drive connecting rod is pivotally connected to the door cover structure to drive the door cover structure to move to cover or expose the heat dissipation opening.