Speaker Device Airflow Cushion for Sound Distortion
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Solution Overview
Problem
Existing portable terminals suffer from poor sound quality due to high airflow velocity in the sound output port, leading to significant sound distortion and noise.
Innovation Solution
A speaker device with a casing that partially covers the sound output port, utilizing an airflow cushion member, such as a strip-shaped rib or serration portions, to reduce airflow velocity and improve sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the sound output port is left uncovered, then the sound output efficiency is improved, but the airflow velocity increases causing sound distortion and noise
Solution Approach 1:
The patent applies local quality by adding airflow cushion members (such as strip-shaped ribs or serration portions) at specific locations within the sound output port. These members are strategically positioned to cushion the airflow where it causes distortion and noise, while leaving other areas of the sound output port open to maintain overall sound output efficiency. This localized intervention resolves the contradiction by addressing the harmful effects only where necessary rather than covering the entire output port.
2Object-generated harmful factors
If the sound output port is partially covered to reduce airflow velocity, then sound distortion and noise are reduced, but the sound output efficiency decreases
Solution Approach 1:
The patent uses local quality by implementing airflow cushion members only in specific regions of the sound output port where airflow causes distortion and noise. The members are designed with specific geometries (strip-shaped ribs or serration portions) that are positioned to cushion problematic airflow patterns while leaving the majority of the sound output port uncovered, thereby maintaining sound output efficiency while locally addressing the harmful airflow effects.
3Object-generated harmful factors
If no airflow cushion member is used, then the device complexity is low, but the sound quality is poor due to high airflow velocity
Solution Approach 1:
The patent resolves the contradiction between device complexity and sound quality by applying local quality through simple airflow cushion members (strip-shaped ribs or serration portions) integrated into the speaker device structure. These members are relatively simple components that are positioned at specific locations within the sound output port to cushion airflow and improve sound quality, adding minimal structural complexity while effectively addressing the harmful airflow effects.
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 airflow velocity, minimizing sound distortion and noise, thereby enhancing the sound quality of the speaker device and terminal.
Implementation Method 1
The sound output port of the casing is partially covered, enabling a reduction in airflow velocity in the sound output port
Data Source
AI summary
A speaker device is provided. The speaker device includes a casing and an acoustic driver disposed in the casing. The casing defines a sound output port for outputting sound, and the sound output port of the casing is partially covered, enabling a reduction in an airflow velocity in the sound output port. A terminal including the speaker device is also provided.