Headset Ear Cup Baffle Layout for Clearer Sound Isolation
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Solution Overview
Problem
Existing headsets suffer from sound output being mixed with noise due to sound transformation and external interference within the ear cup, leading to reduced sound quality.
Innovation Solution
A headset design featuring a baffle with a focusing and dispersion space configuration, combined with a sound absorbing material and dustproof net, to direct sound clearly and loudly to the user's ear while blocking noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sound is output from the speaker in the ear cup, then sound is transmitted to the user's ear, but sound is mixed with noise from inside the ear cup and external noise, reducing sound quality
Solution Approach 1:
The ear cup interior is divided into distinct functional zones: a noise isolation chamber formed by the baffle that separates sound output paths from noise sources. The baffle creates a dedicated space for sound emission while blocking noise from the speaker's rear side and external environment, preventing contamination of the sound signal.
Solution Approach 2:
The baffle acts as an intermediary structure between the speaker and the user's ear. It includes a sound hole that selectively transmits sound while blocking noise, serving as a mediator that filters and directs acoustic energy to reach the user's ear without introducing harmful noise.
2Ease of manufacture
If the ear cup structure is simplified, then manufacturing is easier, but sound output is mixed with noise and sound quality is reduced
Solution Approach 1:
The baffle is designed as a multi-functional component that simultaneously serves as a noise isolation barrier, a sound direction guide, and a structural support element. It blocks noise from multiple directions while maintaining ease of assembly within the ear cup structure, achieving noise isolation without significantly complicating manufacturing.
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 baffle effectively blocks internal and external noise, enhances sound focus and dispersion, and maintains sound quality by reducing collisions and reflections, ensuring clear and loud sound transmission.
Implementation Method 1
a baffle which is connected to the external case and in which a sound hole in communication with the sound holes formed in the external case
Implementation Method 2
a focusing space portion adjacent to the first mounting portion, the focusing space portion being formed such that the focusing space portion gradually narrows from the first mounting portion toward the second mounting portion so that sound output from the speaker is focused on the focusing space portion
Implementation Method 3
a dispersion space portion connected to the emission space portion and adjacent to the second mounting portion, the dispersion space portion being formed such that the dispersion space portion becomes gradually wider than the focusing space portion from the first mounting portion toward the second mounting portion so that the sound is dispersed and emitted toward the baffle plate
Data Source
AI summary
Proposed is a headset including a head band provided with a head pad, a length adjustment member including a plurality of length adjustment members respectively mounted on both sides of the head band, an ear cup which is mounted on the length adjustment member and in which the speaker is mounted by a baffle, an ear pad mounted on the ear cup, a rotation member mounted on one of the ear cups and provided with a microphone, and a cable mounted on the ear cup around the rotation member and provided with a connection cable that is connected to the speaker and the microphone. More particularly, the baffle includes a baffle body having a first mounting portion, a second mounting portion, and a second plate, and includes a baffle plate. A space of the baffle body includes a focusing space portion, an emission space portion, and a dispersion space portion.