Portable Electronic Device Dust Collection for Heat Dissipation Fins
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dust accumulation on heat dissipation fins of notebook computers reduces heat dissipation efficiency due to the introduction of external dust through the fan, which is difficult to prevent in existing air-cooled forced heat dissipation mechanisms.
Innovation Solution
A detachable dust collecting member is positioned between the fan and the heat dissipation fin to collect dust before it reaches the fin, improving heat dissipation efficiency by preventing accumulation, and is easily removable for maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is used to blow cold air to the heat dissipation fin, then heat dissipation efficiency is improved, but dust accumulates on the heat dissipation fin
Solution Approach 1:
A dust collecting member is introduced as an intermediary component between the fan and the heat dissipation fin. This member captures dust particles in the airflow before they can reach and accumulate on the heat dissipation fin, while allowing the airflow to continue functioning for heat dissipation. The dust collecting member effectively mediates between the fan's air blowing function and the heat dissipation fin's heat exchange function.
2Reliability
If the dust collecting member is permanently fixed, then dust collection effect is maintained, but user operation becomes complex
Solution Approach 1:
The dust collecting member is designed as a detachable, segmented component that can be separated from the main device body. This allows users to easily remove the dust collecting member for cleaning and maintenance without disassembling the entire device. The segmentation principle enables independent access to the dust collecting member while maintaining its effectiveness during operation.
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 solution effectively prevents dust from accumulating on the heat dissipation fin, maintaining high heat dissipation efficiency and allowing easy user operation for periodic cleaning of the dust collecting member.
Implementation Method 1
the heat pipe is thermally coupled between the heat source and the heat dissipation fin
Implementation Method 2
The heat generated by the heat source inside the host can be transferred to the condensation end through the evaporation end of the heat pipe
Implementation Method 3
The air-cooled forced heat dissipation mechanism includes a fan... The cold air blown from the air outlet of the fan to the heat dissipation fin
Implementation Method 4
The cold air blown from the air outlet of the fan to the heat dissipation fin exchanges heat with the heat dissipation fin to form hot air
Data Source
AI summary
A portable electronic device including a casing, a heat source, a fan, a heat dissipation fin, a heat pipe and a dust collecting member is provided. The heat source, the fan, the heat dissipation fin, and the heat pipe are located inside the casing, and the heat pipe is thermally coupled between the heat source and the heat dissipation fin. The dust collecting member is detachably assembled to the casing and is inserted into the casing. The heat dissipation fin is disposed as corresponding to the fan, and the dust collecting member is located between the fan and the heat dissipation fin.