Electronic Device Dustproof Wall for Cleaner Power Supply Ventilation
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Solution Overview
Problem
Dust and dirt enter the housing of electronic devices through vent holes and adhere to cooling components such as heat sinks or power supply units, especially when the device is not in use and is positioned in certain postures.
Innovation Solution
The electronic device incorporates a dustproof wall positioned uprightly between the ventilation region and the vent hole, intersecting the direction of airflow, to reduce dust accumulation on components like the power supply unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vent hole is formed on the housing for air intake and exhaust, then airflow efficiency is improved, but dust and dirt enter the housing and adhere to internal components
Solution Approach 1:
The housing is divided into a dustproof chamber and a non-dustproof chamber by the dustproof wall. The dustproof wall segments the internal space to prevent dust that enters through the vent hole from reaching the power supply unit, while maintaining separate airflow paths for cooling and dust prevention functions
Solution Approach 2:
The dustproof wall acts as an intermediary structure between the vent hole and the power supply unit. It positioned at the downstream side of the vent hole in the airflow direction, intercepting dust particles before they can adhere to the power supply unit while allowing cooling air to pass through
2Area of stationary object
If the electronic device is placed in a vertical posture for space saving, then device footprint is reduced, but dust adheres to cooling components due to gravity
Solution Approach 1:
The dustproof wall is pre-positioned at the downstream side of the vent hole to counteract the harmful effect of dust accumulation before it occurs. This preliminary protective structure prevents dust from reaching critical components regardless of device orientation, addressing the dust adherence problem that would otherwise worsen in vertical posture
Data Source
AI summary
Provided is an electronic device that can reduce dust and so forth that adhere to a ventilation region of a heat generating part or a heat radiating part. An electronic device includes a power supply unit, and a housing that has the power supply unit accommodated therein and that has an intake port formed therein. The intake port is positioned to the right with respect to the power supply unit. The power supply unit has, on a side thereof directed to the right of the power supply unit, an intake region for allowing passage therethrough of air from the outside toward the inside of a case of the power supply unit. A dustproof wall is formed between the intake region and the intake port and stands uprightly in an upward and downward direction.