Staggered Shielding Structure for Electronic Apparatus Ventilation
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Solution Overview
Problem
In electronic apparatuses, reducing the distance between louvers to prevent internal components from being exposed externally results in decreased ventilation efficiency.
Innovation Solution
The electronic apparatus incorporates a first and second shielding portion positioned orthogonally with a displaced relationship, featuring a first vent between them, and a circuit board disposed between wall portions to form an air flow path connecting to the vent, enhancing ventilation efficiency while minimizing exposure of internal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between two adjacent louvers is made small to prevent internal components from being exposed externally, then the shielding effectiveness is improved, but the ventilation efficiency decreases
Solution Approach 1:
The invention transitions from a single-plane louver arrangement to a three-dimensional shielding structure where first and second shielding portions are positioned at different depths along the air flow path. The first shielding portion is closer to the exhaust port while the second shielding portion is positioned deeper inside, creating a staggered configuration that blocks internal components from external view while preserving ventilation area.
Solution Approach 2:
The shielding structure employs a nested arrangement where the second shielding portion is positioned behind the first shielding portion relative to the exhaust port. This nested configuration allows both shielding portions to work together in a layered manner, achieving comprehensive shielding without requiring the louvers to be closely spaced.
2Device complexity
If traditional single-plane louvers are used to shield internal components, then the structure is simple, but the ventilation efficiency decreases due to reduced louver spacing
Solution Approach 1:
The invention adds a depth dimension to the shielding structure by positioning first and second shielding portions at different distances from the exhaust port along the air flow path. This three-dimensional arrangement maintains structural simplicity while improving ventilation efficiency compared to traditional single-plane louvers.
Data Source
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AI summary
The ventilation efficiency is improved while exposure of a part disposed at the inner side of an electronic apparatus is suppressed. An electronic apparatus (1) has a first shielding portion (H1) and a second shielding portion (H2) disposed behind a circuit board (41). The first shielding portion (H1) and the second shielding portion (H2) are juxtaposed in an upward and downward direction. Further, the first shielding portion (H1) and the second shielding portion (H2) are disposed in a displaced relationship from each other in a forward and rearward direction, and a first exhaust port (E1) is provided between the first shielding portion (H1) and the second shielding portion (H2).