Line Array Speaker Flat-Panel Modules Integration
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Solution Overview
Problem
Line array speakers face challenges in minimizing structure and size while effectively propagating sound over a wide space, often resulting in complex designs and increased size when combined with specialized speaker horns.
Innovation Solution
The line array speaker employs linearly arranged flat-panel speaker modules with a spiral coil pattern, two magnetic bodies, and a diaphragm, allowing for the emission of line-shaped wavefronts, which simplifies the structure and enables efficient sound propagation in a wide space by adjusting the separation distance between modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a specially-structured speaker horn is coupled to the line array speaker to emit sound in a plane, then the sound propagation capability is improved, but the device size and structural complexity excessively increase
Solution Approach 1:
The patent merges the speaker element and speaker horn into a single integrated unit. The speaker element is directly mounted on the large opening of the horn, eliminating the need for separate coupling structures. This integration maintains the planar sound propagation capability while significantly reducing structural complexity and device size.
Solution Approach 2:
The speaker housing serves multiple functions: it acts as both the structural support for the speaker elements and as the speaker horn itself. The housing's tapered shape from small to large opening in the sound emission direction provides the acoustic guidance function, eliminating the need for a separate horn structure.
2Reliability
If a specially-structured speaker horn is coupled to the line array speaker to emit sound in a plane, then the sound propagation capability is improved, but the device size excessively increases
Solution Approach 1:
The speaker element and speaker horn are merged into a single integrated unit. The speaker element is directly mounted on the large opening of the horn, eliminating the need for separate coupling structures and reducing overall device volume.
Solution Approach 2:
The speaker housing serves as both structural support and acoustic horn, providing multi-functionality that reduces the overall device size while maintaining sound propagation capabilities.
3Area of stationary object
If multiple speaker modules are linearly arranged to form a line array speaker for wide space propagation, then the sound coverage area is improved, but the structure becomes more complex
Solution Approach 1:
The line array speaker is divided into multiple identical speaker modules that can be linearly arranged. Each module contains a simplified integrated speaker element and horn structure, making the overall system easier to construct and maintain while achieving wide area coverage.
Solution Approach 2:
Each speaker module uses a multi-functional housing that serves as both structural support and acoustic horn, reducing the complexity of each individual module and thereby reducing the overall structural complexity of the line array system.
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
This configuration minimizes the speaker's size and structure, allowing for effective sound propagation in large areas while allowing for easy adjustment of module separation to optimize sound quality based on the environment, maintaining balance and preventing interference and short-circuiting.
Implementation Method 1
a coil plate located between the first magnetic body and the second magnetic body, and configured to have a coil pattern formed in a spiral track shape
Implementation Method 2
a first magnetic body configured to extend in the first direction, and be polarized in a direction perpendicular to the first direction, a second magnetic body configured to extend in the first direction, be polarized in a direction perpendicular to the first direction
Implementation Method 3
the diaphragm is configured to vibrate by connecting to the coil plate
Data Source
Figure 1
Figure 2~3A
Figure 3B~4
AI summary
A line array speaker provided with a plurality of speaker modules linearly arranged therein is disclosed. Advantages of the line array speaker can be maximized using flat-panel speaker modules. The line array speaker includes at least one speaker module provided with a diaphragm that vibrates in a second direction perpendicular to a first direction and extends in the first direction, a housing extending in the first direction while including the plurality of speaker modules, and a conductive unit configured to supply electricity having a substantially identical phase to the plurality of speaker modules. The speaker modules are arranged in the housing in the first direction