Ventilation Panel Layout for Noise Reduction and Heat Dissipation

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Solution Overview

Problem

Existing solutions for heat dissipation in electronic devices face a challenge in balancing ventilation and noise reduction, as sound insulation methods that block noise also impede air convection, while ventilation holes that enhance airflow allow noise to penetrate.

Innovation Solution

A panel with staggered ventilation holes and integrated sound insulation boards is installed on electronic devices, allowing air to escape while preventing direct sound transmission, and is designed to protrude externally to avoid face-to-face blowing interference, ensuring efficient heat dissipation and noise reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If sound insulation boards are installed to block noise, then noise reduction is improved, but air convection is blocked and heat dissipation capability deteriorates

Engineering Contradiction:
ImprovenoiseVSAvoidheat dissipation capability
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The sound insulation board is segmented by providing multiple sound insulation holes instead of a solid board. This segmentation allows air to pass through while the surrounding board material continues to provide sound insulation, thus resolving the contradiction between noise reduction and heat dissipation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sound insulation board is designed with sound insulation holes, effectively creating a porous structure. This allows the board to maintain its sound insulation function while enabling air convection and heat dissipation through the holes, thus resolving the contradiction between noise blocking and air flow.

Inventive Principle:
Principle #31Porous materials

2Temperature

If ventilation holes are opened on sound insulation board to increase air convection, then heat dissipation is improved, but sound can penetrate through and noise reduction deteriorates

Engineering Contradiction:
Improveheat dissipationVSAvoidnoise
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

Instead of providing large open areas for ventilation, the design segments the ventilation function into multiple small sound insulation holes. This segmentation maintains the overall sound insulation integrity of the board while providing sufficient air flow paths for heat dissipation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sound insulation board has different local qualities: the board material provides sound insulation, while the holes provide ventilation. This local differentiation allows the same structure to simultaneously achieve both noise reduction and heat dissipation functions.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If panels are placed side by side with aligned ventilation holes, then manufacturing is simplified, but air exhausted from adjacent panels forms face-to-face blowing interference and ventilation efficiency deteriorates

Engineering Contradiction:
Improvepanel alignmentVSAvoidventilation efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The sound insulation holes are arranged in an asymmetric staggered pattern rather than a symmetric aligned pattern. This asymmetric arrangement prevents face-to-face blowing interference when panels are placed side by side, improving ventilation efficiency while remaining manufacturable.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The hole arrangement is shifted from a one-dimensional aligned pattern to a two-dimensional staggered pattern. This dimensional change in the arrangement pattern allows air flows from adjacent panels to diverge rather than collide, improving ventilation efficiency.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 reduces noise pollution while maintaining adequate ventilation and heat dissipation performance, providing a comprehensive benefit by preventing direct sound transmission and minimizing face-to-face blowing interference.

Implementation Method 1

a sound insulation board for sound insulation is set near each ventilation hole along an inner side of the panel, so that at least certain sound from the inner of the electronic device needs to bypass the sound insulation board to pass through the ventilation holes

Methodology Applied
Scientific EffectSound insulation: Acoustic Absorption

Implementation Method 2

external cool air is brought in and internal heat is exhausted, so that the internal temperature of the device is controlled

Methodology Applied
Scientific EffectAir convection: Convection

Data Source

PatentUS9326427B2Panel for ventilation and noise reduction and manufacturing method
Publication Date: 2016.04.26 HUAWEI TECH CO LTD
  • US9326427B2 patent drawing
  • US9326427B2 patent drawing
  • US9326427B2 patent drawing

AI summary

A panel for ventilation and noise reduction and its manufacturing method are disclosed. A left side and a right side of the panel each include one or a plurality of ventilation holes, and a sound insulation board for sound insulation is set near each ventilation hole along an inner side of the panel, so that at least certain sound from the inner of the electronic device needs to bypass the board to pass through the ventilation holes; and the ventilation hole on the left side and the right side of the panel are opened in a staggered position, so that when the panel is placed side by side with another panel, air exhausted from a ventilation hole at an adjacent side of the panel does not form strong face-to-face blowing interference with air exhausted from a ventilation hole at an adjacent side of another panel.