Wearable Acoustic Device Microphone Nesting for Miniaturization
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Solution Overview
Problem
Wearable acoustic devices face challenges in miniaturization and sound quality due to the need for additional space to mount acoustic components, particularly in restricted internal spaces, and existing designs often compromise on acoustic performance.
Innovation Solution
A wearable acoustic device design that incorporates a first housing forming a sound emission path, a second housing combined in a parallel direction, and a microphone arranged adjacent to the path within the first housing, utilizing a fixing part with specific opening structures to enhance acoustic performance without increasing the device's size, allowing for noise cancellation without additional space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If acoustic components are mounted in a restricted internal space of a small sized device, then the device can provide hearing functions, but the device size cannot be miniaturized and sound quality deteriorates
Solution Approach 1:
The acoustic component is nested within the housing structure, specifically positioned within the second housing that is combined with the first housing. The acoustic component is arranged within the internal space of the second housing, utilizing the nested configuration to maximize space efficiency and enable miniaturization while maintaining functional performance
Solution Approach 2:
The acoustic emission path is configured to extend in a first direction that is substantially parallel to the longitudinal axis of the housing. The acoustic component emits sound through this path, utilizing the longitudinal dimension of the housing to accommodate the acoustic path and component, thereby optimizing the use of available space in the restricted internal volume
2Reliability
If acoustic components are mounted in a restricted internal space, then the device can function, but acoustic performance deteriorates due to mounting structure
Solution Approach 1:
The acoustic component is integrated with the housing structure through a unified mounting arrangement. The first housing and second housing are combined to form an integrated structure that accommodates the acoustic component and provides the acoustic emission path, eliminating the need for separate mounting brackets or additional structural elements
Solution Approach 2:
The housing structure serves multiple functions: it provides the acoustic emission path for sound propagation, acts as the mounting structure for the acoustic component, and forms the external casing of the device. This multi-functionality reduces the need for additional specialized components and simplifies the overall mounting structure
3Reliability
If additional space is allocated for microphone mounting, then noise cancellation can be implemented, but device size increases
Solution Approach 1:
The microphone is integrated with the existing housing structure and acoustic emission path configuration. The microphone is positioned to utilize the same acoustic path that extends through the first housing and second housing, allowing it to share the spatial volume already allocated for the acoustic component without requiring additional space
Solution Approach 2:
The microphone is arranged within the internal space of the first housing, utilizing the longitudinal dimension along the acoustic emission path. This positioning allows the microphone to capture sound waves traveling through the acoustic path without increasing the external dimensions of the device, as it shares the same volumetric envelope as the acoustic component
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 design effectively improves acoustic performance and enables noise cancellation within the limited space of a small-sized wearable device, maintaining sound quality while allowing for miniaturization and efficient mounting of components.
Implementation Method 1
an acoustic component part arranged within the second housing and emitting sound through the first acoustic emission path
Implementation Method 2
at least one microphone arranged adjacent to the first acoustic emission path within the first housing
Data Source
AI summary
A wearable acoustic device with a microphone is provided. The wearable acoustic device includes a first housing forming a first acoustic emission path, a second housing combined with the first housing in a first direction that is substantially parallel to the first acoustic emission path, an acoustic component part arranged within the second housing and emitting sound through the first acoustic emission path, and at least one microphone arranged adjacent to the first acoustic emission path within the first housing.