Speaker Horn Throat Path-Length Correction via Curved Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sound wave guiding structures for speaker systems require complex branch path structures with multiple stages, leading to increased costs, reduced efficiency, and interference issues with high-frequency sound waves, while also being difficult to manufacture due to space constraints.
Innovation Solution
A sound-wave path-length correcting structure that uses a throat portion with a concave and convex curved surface configuration, eliminating the need for multiple stages, allowing for equal sound pressure distribution without interference, and facilitating easier production by avoiding complex branch paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional sound wave guiding structures use multiple stages of branched paths to correct sound-wave path-length, then sound pressure distribution is improved, but device complexity increases and manufacturing becomes difficult
Solution Approach 1:
The sound path is divided into multiple regions along the sound wave propagation direction, with each region containing a plurality of sound emitting holes. This segmentation allows different path-length correction to be applied to different regions, achieving equal sound pressure distribution without requiring complex multi-stage branching structures.
Solution Approach 2:
Instead of using multi-stage branched paths (one-dimensional complexity), the invention transitions to a two-dimensional array of sound emitting holes arranged in different regions along the propagation direction. This dimensional change simplifies the structure while maintaining the ability to correct path-length differences across multiple paths.
2Manufacturing precision
If conventional structures use multiple stages of branched paths, then sound-wave path-length correction is achieved, but high-frequency sound waves experience interference
Solution Approach 1:
By segmenting the sound path into multiple regions with sound emitting holes distributed across these regions, the invention creates multiple parallel paths rather than sequential branched paths. This segmentation approach allows high-frequency sound waves to propagate through multiple simultaneous paths without the sequential interference problems that occur in multi-stage branched structures.
3Manufacturing precision
If conventional sound wave guiding structures are designed with multiple stages, then path-length correction is possible, but manufacturing cost and difficulty increase
Solution Approach 1:
The sound path is segmented into multiple regions along the propagation direction, with sound emitting holes arranged in arrays within each region. This segmentation enables modular manufacturing where each region can be independently formed, and the regions are then assembled together, significantly simplifying the production process compared to creating complex multi-stage branched structures as single integrated components.
Solution Approach 2:
The invention uses a two-dimensional arrangement of sound emitting holes in different regions rather than multi-stage branching. This dimensional approach allows for simpler manufacturing processes such as array drilling or molding, avoiding the need for complex sequential assembly of multiple branched stages.
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 provides a simple and efficient sound-wave path-length correction mechanism that maintains equal sound pressure across the wave surface, preventing interference at high frequencies and ensuring effective sound wave amplification with a straightforward manufacturing process.
Implementation Method 1
a sound path in a throat portion is branched into plural branched paths with a plurality of stages... correct a sound-wave path-length in a sound path of the throat portion
Implementation Method 2
correct a sound-wave path-length in a sound path of the throat portion, and emit the sound wave from an outlet opening of the throat portion
Data Source
AI summary
A sound-wave path-length correcting structure for a speaker system includes a sound source and a horn. The horn has a sound-wave path-length correcting throat portion. The sound-wave path-length correcting throat portion corrects a sound-wave path-length of a sound wave input from an inlet opening thereof in the sound path, and emits the sound wave from an outlet opening thereof. The sound path is defined by a first side surface with a concave curved surface and a second side surface with a convex curved surface that face each other with a space, and a third side surface and a fourth side surface that face each other with a space. The third side surface and the fourth side surface are formed so that their surfaces gradually widen as the surfaces advance from the inlet opening to the outlet opening of the sound-wave path-length correcting throat portion.