Integrated Horn Speaker Duct Structure for Multi-Band Sound
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Solution Overview
Problem
Conventional horn speakers have a limited sound reproduction range and efficiency due to the separate installation of the horn and duct, which restricts the size and length of the horn, making it difficult to achieve multi-band sound reproduction and smooth sound diffusion.
Innovation Solution
The horn speaker features a primary and secondary case with integrally formed horn parts, including a seating groove, discharge outlet, and partition to guide and amplify sound, allowing for multiple discharge outlets in both the front and rear directions, enhancing sound transmission and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the horn is installed in a separate duct, then the horn structure can be simplified, but the length and size of the horn are limited, reducing speaker efficiency
Solution Approach 1:
The patent merges the horn and duct into a single integrated structure where the horn is formed as one piece with the duct, eliminating the need for separate components. This integration allows the horn to achieve greater length and size while maintaining structural simplicity, directly resolving the contradiction between structural complexity and horn dimensions.
2Ease of manufacture
If the horn is installed in a separate duct, then assembly is easier, but multi-band sound reproduction and sound diffusion are difficult to achieve
Solution Approach 1:
The integrated horn-duct structure enables complex sound reproduction patterns including multi-band sound and smooth sound diffusion that were difficult to achieve with separate components. The unified structure allows for optimized acoustic pathways that support enhanced sound reproduction capabilities.
3Productivity
If the horn length is increased to improve conformity to air, then speaker efficiency improves, but the horn cannot be properly installed in conventional duct configurations
Solution Approach 1:
By combining the horn and duct into one integrated component, the patent enables the horn to achieve its optimal length for air conformity and speaker efficiency without the installation constraints imposed by separate duct configurations. The unified structure is designed as a single assembly that maintains simplicity while achieving superior acoustic performance.
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 design improves sound ambiance and quality by maximizing sound transmission, reducing noise and diffusion, while simplifying the structure to decrease size and production costs, and extends the sound reproduction band with reduced distortion.
Implementation Method 1
a speaker unit that converts electrical signals to sound signals and generates sound waves
Implementation Method 2
a plurality of horn parts that are formed inside of the enclosure; the plurality of horn parts guide and amplify sound waves from the speaker unit
Data Source
AI summary
A horn speaker improves ambience and sound quality by minimizing the transmission of sound diffusion and noise while maximizing the transmission of source sound generated by a speaker unit. The sound emitted by the speaker unit is collected in a seating groove and discharged through a discharge outlet of the horn speaker by integrally forming a plurality of horns in primary and secondary cases of the horn speaker enclosure. A simplified structure reduces the size of the horn speaker and difficulty associated with its assembly. The reproduction band of sound can be extended by forming a horn in a duct structure and adding sound pressure by combining it with sound emitted from the resonance of the duct in forward and backward directions. The amplitude of the resonance point is reduced in the same band and consequently advantageously reduces distortion of the sound.