Multi-Speaker Headset Acoustic Unit for Compact Spatial Efficiency
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Solution Overview
Problem
Existing head-mounted devices with single-speaker loud-speaking units face limitations in acoustic performance due to reduced sound quality and increased sound transmitting distance, especially in limited spaces.
Innovation Solution
A loud-speaking apparatus with multiple loudspeakers sharing a front and rear sound cavity, optimized for compact designs, reduces sound transmitting distance and enhances acoustic performance by arranging sub-cavities and loudspeakers in a shell assembly for improved power distribution and space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-speaker design is used in the loud-speaking unit, then the device structure is simple, but the acoustic performance deteriorates due to reduced sound quality and increased sound transmitting distance
Solution Approach 1:
The loud-speaking unit is segmented into multiple independent loudspeakers (at least two) instead of using a single speaker. Each loudspeaker has its own voice coil and magnet assembly, allowing them to operate independently to improve acoustic performance and reduce sound transmitting distance while maintaining a relatively simple overall device structure.
2Reliability
If multiple loudspeakers are used to improve acoustic performance, then the sound quality improves, but the device complexity and space requirements increase
Solution Approach 1:
Multiple loudspeakers are merged into a single integrated loud-speaking unit assembly. The loudspeakers share common structural elements including the housing, mounting mechanisms, and electrical connections, which reduces overall device complexity while maintaining improved acoustic performance through the multiple speaker configuration.
3Reliability
If multiple loudspeakers are used to improve acoustic performance, then the sound quality improves, but the space required in the head-mounted device increases
Solution Approach 1:
The loudspeakers are arranged in a compact three-dimensional configuration within the loud-speaking unit. By utilizing vertical stacking and optimized spatial arrangement, multiple loudspeakers are accommodated in a reduced volume that fits within the constraints of head-mounted devices, thereby improving acoustic performance without significantly increasing the required space.
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 improves acoustic performance in limited spaces, shortens sound transmitting distance, and simplifies assembly and maintenance, while allowing for better sound quality and reduced structural complexity.
Implementation Method 1
a loud-speaking assembly comprising a plurality of loudspeakers
Implementation Method 2
a front sound cavity and a rear sound cavity that match the loudspeaker are provided
Data Source
AI summary
Disclosed are a loud-speaking apparatus for a head-mounted device and a head-mounted device with the same, wherein, the loud-speaking apparatus includes: a shell assembly and a loud-speaking assembly, the mounting cavity, a front sound cavity and a rear sound cavity are arranged in the shell assembly, the mounting cavity includes a plurality of sub-cavities, each sub-cavity is communicated with the front sound cavity and the rear sound cavity, the loud-speaking assembly includes a plurality of loudspeakers, the plurality of loudspeakers is disposed in the plurality of sub-cavities in one-to-one correspondence, so that each sub-cavity is provided with one corresponding loudspeaker.