Spheroidal Speaker Housing for Acoustic Reflection Reduction
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Solution Overview
Problem
Existing speaker designs with parallel internal surfaces exacerbate sound reflections and reverberations, leading to impaired sound quality and increased complexity due to mechanical noise transfer, which requires significant software filtering.
Innovation Solution
A speaker design featuring a spheroidal speaker housing mounted to a heat sink, minimizing acoustic reflections and mechanical noise transfer while maximizing driver and radiator performance, achieved through a direct mounting arrangement that reduces parts and complexity, and enhances thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If parallel internal surfaces are used in speaker housing, then manufacturing is simplified, but acoustic reflections and reverberations are exacerbated
Solution Approach 1:
The speaker housing employs a spheroidal internal geometry instead of parallel surfaces. This curved surface design causes sound waves to disperse in multiple directions rather than reflecting along parallel paths, thereby eliminating standing waves and reverberations while maintaining manufacturing feasibility through molding processes.
2Ease of manufacture
If traditional mounting arrangements are used, then assembly is simplified, but mechanical noise transfer to circuit boards increases
Solution Approach 1:
The heat sink serves as an intermediary mounting structure between the speaker housing and the shell. The speaker housing is mounted to the heat sink rather than directly to the shell, creating a decoupling effect that reduces mechanical noise transfer to circuit boards while maintaining assembly simplicity through the integrated heat sink structure.
3Object-generated harmful factors
If more software filtering is applied, then sound quality is improved, but device complexity and power consumption increase
Solution Approach 1:
The invention converts the potentially harmful effect of mechanical vibrations into a beneficial mounting mechanism. By mounting the speaker housing to the heat sink, the vibrations are utilized for heat dissipation purposes while being isolated from circuit boards, thereby reducing the need for software filtering and lowering overall system complexity.
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 minimizes acoustic reflections, maximizes sound quality, reduces mechanical noise, and lowers power consumption while simplifying the speaker's design and reducing software filtering requirements, resulting in a cost-effective and efficient sound production.
Implementation Method 1
heat sink
Implementation Method 2
heat sink
Implementation Method 3
soundwaves can bounce along parallel paths between the parallel internal surfaces, standing waves, internal reflections, and reverberations
Data Source
AI summary
A speaker includes a shell, a speaker housing, and a heat sink. The heat sink is fixed inside the shell. The speaker housing is mounted to the heat sink such that the speaker housing is suspended from the heat sink inside the shell. An interior of the speaker housing is spheroidal.